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1.
Mikrochim Acta ; 191(5): 286, 2024 04 23.
Artigo em Inglês | MEDLINE | ID: mdl-38652378

RESUMO

A perennial challenge in harnessing the rich biological activity of medicinal and edible plants is the accurate identification and sensitive detection of their active compounds. In this study, an innovative, ultra-sensitive detection platform for plant chemical profiling is created using surface-enhanced Raman spectroscopy (SERS) technology. The platform uses silver nanoparticles as the enhancing substrate, excess sodium borohydride prevents substrate oxidation, and methanol enables the tested molecules to be better adsorbed onto the silver nanoparticles. Subsequently, nanoparticle aggregation to form stable "hot spots" is induced by Ca2+, and the Raman signal of the target molecule is strongly enhanced. At the same time, deuterated methanol was used as the internal standard for quantitative determination. The method has excellent reproducibility, RSD ≤ 1.79%, and the enhancement factor of this method for the detection of active ingredients in the medicinal plant Coptis chinensis was 1.24 × 109, with detection limits as low as 3 fM. The platform successfully compared the alkaloid distribution in different parts of Coptis chinensis: root > leaf > stem, and the difference in content between different batches of Coptis chinensis decoction was successfully evaluated. The analytical technology adopted by the platform can speed up the determination of Coptis chinensis and reduce the cost of analysis, not only making better use of these valuable resources but also promoting development and innovation in the food and pharmaceutical industries. This study provides a new method for the development, evaluation, and comprehensive utilization of both medicinal and edible plants. It is expected that this method will be extended to the modern rapid detection of other medicinal and edible plants and will provide technical support for the vigorous development of the medicinal and edible plants industry.


Assuntos
Nanopartículas Metálicas , Plantas Comestíveis , Plantas Medicinais , Prata , Análise Espectral Raman , Análise Espectral Raman/métodos , Nanopartículas Metálicas/química , Plantas Medicinais/química , Prata/química , Plantas Comestíveis/química , Limite de Detecção , Compostos Fitoquímicos/análise , Compostos Fitoquímicos/química , Reprodutibilidade dos Testes , Alcaloides/análise
2.
Food Chem ; 427: 136677, 2023 Nov 30.
Artigo em Inglês | MEDLINE | ID: mdl-37390739

RESUMO

Wild edible plants (WEP) are part of the Mediterranean culinary culture and can be used as famine foods in times of severe food shortages. Urospermum picroides is a WEP that grows under harsh conditions and represents an opportunity to expand and diversify the global food supply. However, little is known about its chemical profile. In this study, liquid chromatography coupled to HRESIMS allowed the identification of 77 metabolites in U. picroides extract, among which 12 sesquiterpene-amino acid conjugates are reported here for the first time. Due to the novelty of these conjugates, GNPS molecular networking was used to provide information on their fragmentation pathway. Further, the sesquiterpene enriched U. picroides extract showed a moderate anti-inflammatory effect in LPS-stimulated THP1-macrophages by increasing IL-10 secretion while decreasing pro-inflammatory IL-6 secretion at 50 µg/mL. Our study provides evidence for the potential use of U. picroides as an anti-inflammatory functional food and nutraceutical agent.


Assuntos
Asteraceae , Sesquiterpenos , Alimento Funcional , Asteraceae/química , Plantas Comestíveis/química , Extratos Vegetais/química , Anti-Inflamatórios
3.
Molecules ; 28(5)2023 Feb 22.
Artigo em Inglês | MEDLINE | ID: mdl-36903300

RESUMO

Approximately 110 types of medicinal materials are listed in the Chinese Pharmacopoeia, both for medicinal purposes and for use as food. There are several domestic scholars who have carried out research on edible plant medicine in China and the results are satisfactory. Though these related articles have appeared in domestic magazines and journals, many of them are yet to be translated into English. Most of the research stays in the extraction and quantitative testing stage, and there are a few medicinal and edible plants that are still under in-depth study. A majority of these edible and herbal plants are also highly enriched in polysaccharides, and this has an effect on immune systems for the prevention of cancer, inflammation, and infection. Comparing the polysaccharide composition of medicinal and edible plants, the monosaccharide and polysaccharide species were identified. It is found that different polysaccharides of different sizes have different pharmacological properties, with some polysaccharides containing special monosaccharides. The pharmacological properties of polysaccharides can be summarized as immunomodulatory, antitumor, anti-inflammatory, antihypertensive and anti-hyperlipemic, antioxidant, and antimicrobial properties. There have been no poisonous effects found in studies of plant polysaccharides, probably because the substances have a long history of use and are safe. In this paper, the application potential of polysaccharides in medicinal and edible plants in Xinjiang was reviewed, and the research progress in the extraction, separation, identification, and pharmacology of these plant polysaccharides was reviewed. At present, the research progress of plant polysaccharides in medicines and food in Xinjiang has not been reported. This paper will provide a data summary for the development and utilization of medical and food plant resources in Xinjiang.


Assuntos
Plantas Comestíveis , Plantas Medicinais , Polissacarídeos , China , Alimentos , Plantas Comestíveis/química , Plantas Medicinais/química , Polissacarídeos/farmacologia
4.
PLoS One ; 17(2): e0264147, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35176111

RESUMO

Understanding local knowledge about wild edible plants (WEP) is essential for assessing plant services, reducing the risks of knowledge extinction, recognizing the rights of local communities, and improving biodiversity conservation efforts. However, the knowledge of specific groups such as women or children tends to be under-represented in local ecological knowledge (LEK) research. In this study, we explore how knowledge of WEP is distributed across gender and life stages (adults/children) among Betsileo people in the southern highlands of Madagascar. Using data from free listings with 42 adults and 40 children, gender-balanced, we show that knowledge on WEP differs widely across gender and life stage. In addition, we find that children have extended knowledge of WEP while reporting different species than adults. Women's knowledge specializes in herbaceous species (versus other plant life forms), while men's knowledge specializes in endemic species (versus native or introduced). Finally, we find that introduced species are more frequently cited by children, while adults cite more endemic species. We discuss the LEK differentiation mechanisms and the implications of acquiring life stage's knowledge in the highland landscapes of Madagascar. Given our findings, we highlight the importance of considering groups with under-represented knowledge repositories, such as children and women, into future research.


Assuntos
Povo Asiático/estatística & dados numéricos , Biodiversidade , Etnobotânica , Conhecimentos, Atitudes e Prática em Saúde , Plantas Comestíveis/química , Adolescente , Adulto , Criança , Pré-Escolar , Feminino , Humanos , Madagáscar , Masculino , Adulto Jovem
5.
Int J Mol Sci ; 23(2)2022 Jan 06.
Artigo em Inglês | MEDLINE | ID: mdl-35054793

RESUMO

Cardiovascular diseases (CVDs) are a primary cause of deaths worldwide. Thrombotic diseases, specifically stroke and coronary heart diseases, account for around 85% of CVDs-induced deaths. Platelets (small circulating blood cells) are responsible for the prevention of excessive bleeding upon vascular injury, through blood clotting (haemostasis). However, unnecessary activation of platelets under pathological conditions, such as upon the rupture of atherosclerotic plaques, results in thrombus formation (thrombosis), which can cause life threatening conditions such as stroke or heart attack. Therefore, antiplatelet medications are usually prescribed for people who are at a high risk of thrombotic diseases. The currently used antiplatelet drugs are associated with major side effects such as excessive bleeding, and some patients are resistant to these drugs. Therefore, numerous studies have been conducted to develop new antiplatelet agents and notably, to establish the relationship between edible plants, specifically fruits, vegetables and spices, and cardiovascular health. Indeed, healthy and balanced diets have proven to be effective for the prevention of CVDs in diverse settings. A high intake of fruits and vegetables in regular diet is associated with lower risks for stroke and coronary heart diseases because of their plethora of phytochemical constituents. In this review, we discuss the impacts of commonly used selected edible plants (specifically vegetables, fruits and spices) and/or their isolated compounds on the modulation of platelet function, haemostasis and thrombosis.


Assuntos
Plaquetas/metabolismo , Plantas Comestíveis/química , Animais , Ensaios Clínicos como Assunto , Fungos/química , Humanos , Extratos Vegetais/química , Extratos Vegetais/farmacologia , Testes de Função Plaquetária
6.
J Sci Food Agric ; 102(2): 472-487, 2022 Jan 30.
Artigo em Inglês | MEDLINE | ID: mdl-34462916

RESUMO

Specialized metabolites from plants are important for human health due to their antioxidant properties. Light is one of the main factors modulating the biosynthesis of specialized metabolites, determining the cascade response activated by photoreceptors and the consequent modulation of expressed genes and biosynthetic pathways. Recent developments in light emitting diode (LED) technology have enabled improvements in artificial light applications for horticulture. In particular, the possibility to select specific spectral light compositions, intensities and photoperiods has been associated with altered metabolite content in a variety of crops. This review aims to analyze the effects of indoor LED lighting recipes and management on the specialized metabolite content in different groups of crop plants (namely medicinal and aromatic plants, microgreens and edible flowers), focusing on the literature from the last 5 years. The literature collection produced a total of 40 papers, which were analyzed according to the effects of artificial LED lighting on the content of anthocyanins, carotenoids, phenols, tocopherols, glycosides, and terpenes, and ranked on a scale of 1 to 3. Most studies applied a combination of red and blue light (22%) or monochromatic blue (23%), with a 16 h day-1 photoperiod (78%) and an intensity greater than 200 µmol m-2  s-1 (77%). These treatment features were often the most efficient in enhancing specialized metabolite content, although large variations in performance were observed, according to the species considered and the compound analyzed. The review aims to provide valuable indications for the definition of the most promising spectral components toward the achievement of nutrient-rich indoor-grown products. © 2021 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.


Assuntos
Flores/química , Folhas de Planta/química , Plantas Comestíveis/metabolismo , Plantas Medicinais/metabolismo , Verduras/efeitos da radiação , Carotenoides/química , Carotenoides/metabolismo , Produção Agrícola/instrumentação , Produção Agrícola/métodos , Flores/crescimento & desenvolvimento , Flores/metabolismo , Flores/efeitos da radiação , Luz , Fenóis/química , Fenóis/metabolismo , Folhas de Planta/crescimento & desenvolvimento , Folhas de Planta/metabolismo , Folhas de Planta/efeitos da radiação , Plantas Comestíveis/química , Plantas Comestíveis/crescimento & desenvolvimento , Plantas Comestíveis/efeitos da radiação , Plantas Medicinais/química , Plantas Medicinais/crescimento & desenvolvimento , Plantas Medicinais/efeitos da radiação , Verduras/química , Verduras/crescimento & desenvolvimento , Verduras/metabolismo
7.
Int J Biol Macromol ; 195: 102-116, 2022 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-34896461

RESUMO

Although the increasing studies have corroborated the biological activities and great market utilization value of polysaccharide fractions derived from Polygonati rhizome, a well-known edible and medicinal plant, Polygonati rhizome polysaccharides (PRPs) still lack sufficient attention. Herein, we make attempt to systematically summarize recent advances in the extraction, purification, structural characteristics, biological activities, and commercial products of PRPs. Based on the detailed extraction and structural characteristics, the biological activities of PRPs including immune-regulation, anti-osteoporosis, anti-Alzheimer's disease, anti-diabetes and anti-atherosclerotic, are emphatically summarized, as well as the possible related mechanisms. Most importantly, about 365 kinds of commercial functional foods and over 500 patents related to PRPs as the main raw material were analyzed to explore the status quo and bottleneck for the development and utilization of PRPs. In conclusion, this review will benefit to bridge the gap between basic knowledge and market innovations, and facilitate the in-depth utilization of PRPs.


Assuntos
Medicamentos de Ervas Chinesas/química , Alimento Funcional , Polygonatum/química , Polissacarídeos/química , Descoberta de Drogas , Medicamentos de Ervas Chinesas/farmacologia , Plantas Comestíveis/química , Polissacarídeos/farmacologia , Rizoma/química
8.
Molecules ; 26(23)2021 Nov 26.
Artigo em Inglês | MEDLINE | ID: mdl-34885744

RESUMO

A worldwide increase in the incidence of fungal infections, emergence of new fungal strains, and antifungal resistance to commercially available antibiotics indicate the need to investigate new treatment options for fungal diseases. Therefore, the interest in exploring the antifungal activity of medicinal plants has now been increased to discover phyto-therapeutics in replacement to conventional antifungal drugs. The study was conducted to explore and identify the mechanism of action of antifungal agents of edible plants, including Cinnamomum zeylanicum, Cinnamomum tamala, Amomum subulatum, Trigonella foenumgraecum, Mentha piperita, Coriandrum sativum, Lactuca sativa, and Brassica oleraceae var. italica. The antifungal potential was assessed via the disc diffusion method and, subsequently, the extracts were assessed for phytochemicals and total antioxidant activity. Potent polyphenols were detected using high-performance liquid chromatography (HPLC) and antifungal mechanism of action was evaluated in silico. Cinnamomum zeylanicum exhibited antifungal activity against all the tested strains while all plant extracts showed antifungal activity against Fusarium solani. Rutin, kaempferol, and quercetin were identified as common polyphenols. In silico studies showed that rutin displayed the greatest affinity with binding pocket of fungal 14-alpha demethylase and nucleoside diphosphokinase with the binding affinity (Kd, -9.4 and -8.9, respectively), as compared to terbinafine. Results indicated that Cinnamomum zeylanicum and Cinnamomum tamala exert their antifungal effect possibly due to kaempferol and rutin, respectively, or possibly by inhibition of nucleoside diphosphokinase (NDK) and 14-alpha demethylase (CYP51), while Amomum subulatum and Trigonella foenum graecum might exhibit antifungal potential due to quercetin. Overall, the study demonstrates that plant-derived products have a high potential to control fungal infections.


Assuntos
Antifúngicos/química , Produtos Biológicos/química , Micoses/tratamento farmacológico , Polifenóis/química , Amomum/química , Antifúngicos/farmacologia , Antioxidantes/química , Produtos Biológicos/isolamento & purificação , Produtos Biológicos/farmacologia , Brassica/química , Cinnamomum zeylanicum/química , Coriandrum/química , Lactuca/química , Mentha piperita/química , Micoses/microbiologia , Compostos Fitoquímicos/química , Compostos Fitoquímicos/farmacologia , Extratos Vegetais/química , Extratos Vegetais/farmacologia , Plantas Comestíveis/química , Plantas Medicinais/química , Polifenóis/isolamento & purificação , Polifenóis/farmacologia , Quercetina/química , Quercetina/isolamento & purificação , Quercetina/farmacologia , Trigonella/química
9.
Molecules ; 26(23)2021 Nov 26.
Artigo em Inglês | MEDLINE | ID: mdl-34885754

RESUMO

Chalcones are secondary metabolites belonging to the flavonoid (C6-C3-C6 system) family that are ubiquitous in edible and medicinal plants, and they are bioprecursors of plant flavonoids. Chalcones and their natural derivatives are important intermediates of the flavonoid biosynthetic pathway. Plants containing chalcones have been used in traditional medicines since antiquity. Chalcones are basically α,ß-unsaturated ketones that exert great diversity in pharmacological activities such as antioxidant, anticancer, antimicrobial, antiviral, antitubercular, antiplasmodial, antileishmanial, immunosuppressive, anti-inflammatory, and so on. This review provides an insight into the chemistry, biosynthesis, and occurrence of chalcones from natural sources, particularly dietary and medicinal plants. Furthermore, the pharmacological, pharmacokinetics, and toxicological aspects of naturally occurring chalcone derivatives are also discussed herein. In view of having tremendous pharmacological potential, chalcone scaffolds/chalcone derivatives and bioflavonoids after subtle chemical modification could serve as a reliable platform for natural products-based drug discovery toward promising drug lead molecules/drug candidates.


Assuntos
Chalcona/metabolismo , Flavonoides/química , Plantas Comestíveis/química , Plantas Medicinais/química , Chalcona/química , Chalcona/farmacocinética , Chalcona/uso terapêutico , Flavonoides/biossíntese , Flavonoides/farmacocinética , Flavonoides/uso terapêutico , Humanos , Alicerces Teciduais/química
10.
Biol Pharm Bull ; 44(12): 1894-1897, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34853274

RESUMO

The lusitropic effect of quercetin was examined on isolated ventricular myocardial tissue preparations from normal and streptozotocin-induced diabetic mice. The time required for 90% relaxation of the myocardium, which was prolonged in the diabetic mice, was shortened by quercetin in both normal and diabetic myocardia. This effect of quercetin was completely inhibited by cyclopiazonic acid but not by SEA0400. These results indicated that quercetin accelerates myocardial relaxation through activation of the sarco-endoplasmic reticulum Ca2+-ATPase.


Assuntos
Diabetes Mellitus Experimental/fisiopatologia , Ventrículos do Coração/fisiopatologia , Contração Miocárdica/efeitos dos fármacos , Miocárdio , Extratos Vegetais/farmacologia , Quercetina/farmacologia , Disfunção Ventricular Esquerda/etiologia , Adenosina Trifosfatases/metabolismo , Compostos de Anilina/farmacologia , Animais , Cálcio/metabolismo , Diabetes Mellitus Experimental/tratamento farmacológico , Diabetes Mellitus Experimental/metabolismo , Retículo Endoplasmático , Inibidores Enzimáticos , Ventrículos do Coração/metabolismo , Indóis/farmacologia , Masculino , Camundongos , Miocárdio/metabolismo , Miocárdio/patologia , Éteres Fenílicos/farmacologia , Extratos Vegetais/uso terapêutico , Plantas Comestíveis/química , Quercetina/uso terapêutico , Valores de Referência , Pressão Ventricular
11.
Molecules ; 26(22)2021 Nov 17.
Artigo em Inglês | MEDLINE | ID: mdl-34834031

RESUMO

Edible flowers are becoming very popular, as consumers are seeking healthier and more attractive food products that can improve their diet aesthetics and diversify their dietary sources of micronutrients. The great variety of flowers that can be eaten is also associated with high variability in chemical composition, especially in bioactive compounds content that may significantly contribute to human health. The advanced analytical techniques allowed us to reveal the chemical composition of edible flowers and identify new compounds and effects that were not known until recently. Considering the numerous species of edible flowers, the present review aims to categorize the various species depending on their chemical composition and also to present the main groups of compounds that are usually present in the species that are most commonly used for culinary purposes. Moreover, special attention is given to those species that contain potentially toxic or poisonous compounds as their integration in human diets should be carefully considered. In conclusion, the present review provides useful information regarding the chemical composition and the main groups of chemical compounds that are present in the flowers of the most common species.


Assuntos
Antioxidantes/química , Flavonoides/química , Flores/química , Extratos Vegetais/química , Plantas Comestíveis/química , Humanos
12.
Molecules ; 26(17)2021 Sep 04.
Artigo em Inglês | MEDLINE | ID: mdl-34500813

RESUMO

Aromatic halophytes represent an exceptional source of natural bioactive compounds for the food industry. Crithmum maritimum L., also known as sea fennel, is a halophyte plant colonizing cliffs and coastal dunes along Mediterranean and Atlantic coasts. It is well known to produce essential oils and polyphenols endowed with antioxidant and biological effects. The present work reports the phytochemical profile, as well as antioxidant, antimicrobial and antimutagenic properties of C. maritimum leaf hydro-alcoholic extract. From LC-ESI-MS analysis, eighteen phenolic compounds were depicted in sea fennel extract and the amount of total phenolic content exceeds 3% DW. Accordingly, C. maritimum extract showed strong antioxidant activities, as evidenced by in vitro (DPPH, ORAC, FRAP) and ex vivo (CAA-RBC and hemolysis) assays. An important antimicrobial activity against pathogenic strains was found as well as a strong capacity to inhibit Staphylococcus aureus (ATCC 35556) biofilm formation. Sea fennel extracts showed a significant decrease of mutagenesis induced by hydrogen peroxide (H2O2) and menadione (ME) in Saccharomyces cerevisiae D7 strain. In conclusion, our results show that C. maritimum is an exceptional source of bioactive components and exert beneficial effects against oxidative or mutagenic mechanisms, and pathogenic bacteria, making it a potential functional food.


Assuntos
Suplementos Nutricionais , Magnoliopsida/química , Extratos Vegetais/química , Plantas Comestíveis/química , Antibacterianos/química , Antibacterianos/farmacologia , Antimutagênicos/química , Antimutagênicos/farmacologia , Antioxidantes/química , Antioxidantes/farmacologia , Extratos Vegetais/farmacologia , Folhas de Planta/química , Plantas Tolerantes a Sal/química , Staphylococcus aureus/efeitos dos fármacos
13.
Int J Mol Sci ; 22(15)2021 Jul 28.
Artigo em Inglês | MEDLINE | ID: mdl-34360856

RESUMO

Indigenous communities across the globe, especially in rural areas, consume locally available plants known as Traditional Food Plants (TFPs) for their nutritional and health-related needs. Recent research shows that many TFPs are highly nutritious as they contain health beneficial metabolites, vitamins, mineral elements and other nutrients. Excessive reliance on the mainstream staple crops has its own disadvantages. Traditional food plants are nowadays considered important crops of the future and can act as supplementary foods for the burgeoning global population. They can also act as emergency foods in situations such as COVID-19 and in times of other pandemics. The current situation necessitates locally available alternative nutritious TFPs for sustainable food production. To increase the cultivation or improve the traits in TFPs, it is essential to understand the molecular basis of the genes that regulate some important traits such as nutritional components and resilience to biotic and abiotic stresses. The integrated use of modern omics and gene editing technologies provide great opportunities to better understand the genetic and molecular basis of superior nutrient content, climate-resilient traits and adaptation to local agroclimatic zones. Recently, realizing the importance and benefits of TFPs, scientists have shown interest in the prospection and sequencing of TFPs for their improvements, cultivation and mainstreaming. Integrated omics such as genomics, transcriptomics, proteomics, metabolomics and ionomics are successfully used in plants and have provided a comprehensive understanding of gene-protein-metabolite networks. Combined use of omics and editing tools has led to successful editing of beneficial traits in several TFPs. This suggests that there is ample scope for improvement of TFPs for sustainable food production. In this article, we highlight the importance, scope and progress towards improvement of TFPs for valuable traits by integrated use of omics and gene editing techniques.


Assuntos
Segurança Alimentar/métodos , Plantas Comestíveis/genética , Plantas Comestíveis/metabolismo , Edição de Genes , Genômica/métodos , Humanos , Metabolômica , Plantas Comestíveis/química , Proteômica
14.
PLoS One ; 16(8): e0256703, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34437649

RESUMO

In the past, wild edible alimurgic plants became an important alternative food source when poverty, wars or drought made it difficult to access crops. These plants were considered rich in highly nutritional compounds and also frequently used as food-medicine given their health-promoting properties. With the aim of improving our knowledge on the content of beneficial or detrimental compounds in relation with past local dietary and curative traditions, 12 wild food plant species were collected from two study areas selected for their very different degree of industrialization, urbanization, and conservation of local past traditions among the population: the Bologna province (Northern Italy) and the Middle Agri Valley (Southern Italy). Protein, polyphenol flavonoid and biogenic amine (both free and conjugated) contents and antioxidant activity of raw and boiled wild food plant extracts, and of cooking water were analyzed by means of spectrophotometric and high-performance liquid chromatography methods. The results demonstrated that most of the phenolic compounds were released in the cooking water which also showed the highest antioxidant activity. Seventeen different phenolic compounds were identified, of which the health-related luteolin, luteolin-7-glucoside and rutin were the most abundant (e.g., S. pratensis L. and C. intybus L.). On the other hand, biogenic amines were absent or present at very low levels in cooking water of those very same species (e.g., S. pratensis L., T. officinalis Weber, C. vesicaria subsp. taraxacifolia and C. intybus L.) of which traditionally a decoction is used for therapeutic purposes. Free and conjugated spermidine and spermine were generally the most abundant biogenic amines, while none of the known detrimental monoamines (e.g., histamine) was detected. In conclusion, the present results seem to support past local popular traditions which indicated beneficial medical properties of some wild edible plant, as well as of their cooking water.


Assuntos
Etnobotânica , Compostos Fitoquímicos/química , Extratos Vegetais/química , Plantas Comestíveis/química , Antioxidantes , Cromatografia Líquida de Alta Pressão , Culinária , Flavonoides/química , Flavonoides/isolamento & purificação , Glucosídeos/química , Glucosídeos/isolamento & purificação , Humanos , Itália , Luteolina/química , Luteolina/isolamento & purificação , Fenóis/química , Fenóis/isolamento & purificação , Polifenóis/química , Polifenóis/isolamento & purificação
15.
J Ethnopharmacol ; 281: 114577, 2021 Dec 05.
Artigo em Inglês | MEDLINE | ID: mdl-34464698

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: Consumable herbs play a basic part in sustenance and human health. Traditionally, Colocasia gigantea Hook (Araceae) is used to treat fever, infection, wounds healing, drowsiness, tuberculosis, stomach problems etc. AIM OF THE STUDY: The study aspired to identify bioactive compounds, to evaluate anti-inflammatory and analgesic potentials of edible herb C. gigantea, and to molecular docking study against anti-inflammatory enzyme Cyclooxygenase-2 (COX-2). MATERIALS AND METHODS: Chemical components of C. gigantea were discerned by HPLC and GCMS assays. In vitro anti-inflammatory activity was appraised by heat-induced, hypotonicity, and hydrogen peroxide-induced hemolysis assays and in vivo by formalin-induced paw edema assay. In vivo analgesic activity was evaluated by acetic acid-induced pain modulation assay. Also, molecular docking of the identified compounds was explored against the anti-inflammatory enzyme cyclooxygenase-2. RESULTS: HPLC-DAD analysis divulged the presence of trans-cinnamic acid along with (-)-epicatechin as a prime component. Also, 9, 12-Octadecadienoic acid (37.86%) and n-Hexadecanoic acid (25.89%) as the major as well as 24 other compounds were confirmed through GCMS in the extract. In in vitro anti-inflammatory study, C. gigantea extract indicated prominent erythrocyte membrane stabilization activity with good percentage aegis in all experimental assays. In addition to, formalin-induced in vivo anti-inflammatory assay revealed the maximum (42.37% and 48.72%) suppression of edema at the fourth hour at 250 and 500 mg/kg body weight, respectively. Moreover, an in-vivo pain modulation assay exposed significant (p < 0.05) activity at experimental doses. Furthermore, in the docking study, (-)-epicatechin was more active rather than other identified compounds with strong binding affinity to COX-2 protein. CONCLUSIONS: The extract evinced remarkable anti-inflammatory and analgesic activities. Identified bioactive components along with other components of the extract might play a pivotal role in the observed bioactivity and the results vindicate the use of edible herb C. gigantea in ancestral medicine.


Assuntos
Analgésicos/farmacologia , Anti-Inflamatórios/farmacologia , Colocasia/química , Fitoterapia , Plantas Comestíveis/química , Analgésicos/química , Animais , Anti-Inflamatórios/química , Biomarcadores , Ciclo-Oxigenase 2/química , Ciclo-Oxigenase 2/metabolismo , Relação Dose-Resposta a Droga , Regulação Enzimológica da Expressão Gênica/efeitos dos fármacos , Humanos , Camundongos , Modelos Moleculares , Simulação de Acoplamento Molecular , Estrutura Molecular , Compostos Fitoquímicos/efeitos adversos , Compostos Fitoquímicos/química , Compostos Fitoquímicos/farmacocinética , Extratos Vegetais/química , Extratos Vegetais/farmacologia , Conformação Proteica , Testes de Toxicidade
16.
Nutrients ; 13(7)2021 Jun 25.
Artigo em Inglês | MEDLINE | ID: mdl-34202377

RESUMO

Mushroom cell walls are rich in ß-glucans, long or short-chain polymers of glucose subunits with ß-1,3 and ß-1,6 linkages, that are responsible for the linear and branching structures, respectively. ß-glucans from cereals, at variance, have no 1,6 linkages nor branching structures. Both immunomodulatory and anti-inflammatory effects of mushrooms have been described using purified ß-glucans or fungi extracts on cellular and experimental models; their potential clinical use has been tested in different conditions, such as recurrent infections of the respiratory tract or complications of major surgery. Another promising application of ß-glucans is on cancer, as adjuvant of conventional chemotherapy. ß-glucans may protect the cardiovascular system, ameliorating glucose, lipid metabolism, and blood pressure: these activities, observed for oat and barley ß-glucans, require confirmation in human studies with mushroom ß-glucans. On the other hand, mushrooms may also protect the cardiovascular system via a number of other components, such as bioactive phenolic compounds, vitamins, and mineral elements. The growing knowledge on the mechanism(s) and health benefits of mushrooms is encouraging the development of a potential clinical use of ß-glucans, and also to further document their role in preserving health and prevent disease in the context of healthy lifestyles.


Assuntos
Agaricales/química , Plantas Comestíveis/química , Substâncias Protetoras/farmacologia , beta-Glucanas/farmacologia , Humanos
17.
Molecules ; 26(12)2021 Jun 18.
Artigo em Inglês | MEDLINE | ID: mdl-34207006

RESUMO

The Lamiaceae is undoubtedly an important plant family, having a rich history of use that spans the globe with many species being used in folk medicine and modern industries alike. Their ability to produce aromatic volatile oils has made them valuable sources of materials in the cosmetic, culinary, and pharmaceutical industries. A thorough account of the taxonomic diversity, chemistry and ethnobotany is lacking for southern African Lamiaceae, which feature some of the region's most notable medicinal and edible plant species. We provide a comprehensive insight into the Lamiaceae flora of southern Africa, comprising 297 species in 42 genera, 105 of which are endemic to the subcontinent. We further explore the medicinal and traditional uses, where all genera with documented uses are covered for the region. A broad review of the chemistry of southern African Lamiaceae is presented, noting that only 101 species (34%) have been investigated chemically (either their volatile oils or phytochemical characterization of secondary metabolites), thus presenting many and varied opportunities for further studies. The main aim of our study was therefore to present an up-to-date account of the botany, chemistry and traditional uses of the family in southern Africa, and to identify obvious knowledge gaps.


Assuntos
Lamiaceae/química , Extratos Vegetais/farmacologia , Plantas Medicinais/química , Animais , Etnobotânica/métodos , Etnofarmacologia/métodos , Humanos , Medicina Tradicional/métodos , Compostos Fitoquímicos/química , Compostos Fitoquímicos/farmacologia , Fitoterapia/métodos , Extratos Vegetais/química , Plantas Comestíveis/química
18.
Acta Sci Pol Technol Aliment ; 20(3): 253-263, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34304544

RESUMO

BACKGROUND: The diet of most of the population is limited to a reduced number of plants, even in areas that have a varied and extensive diversity, such as Brazil. Unconventional Food Plants (UFPs) are plants considered exotic, native, and wild that grow naturally and can be used as food. Among these is Talinum paniculatum (Jacq.) Gaertn., which is widespread throughout Brazil and can be a potential source of nutrients. Due to the potential of utilization of UFPs in human food and the lack of studies regarding the composition of T. paniculatum, this study aimed to assess the nutritional value of T. paniculatum leaves, their antioxidant capacity, and their antimicrobial activity for possible use in food. METHODS: The characterization of the leaves of T. paniculatum was carried out through analyses of proximal composition, color, ascorbic acid, mineral profile, and antinutritional factors showing the presence of condensed and hydrolysable tannins and nitrates in low concentrations. Solvents of water, ethanol, ethanol/water, methanol, methanol/water, methanol/acetic acid and acetone/water/acetic acid were used to evaluate the extraction yield of phenolic compounds, antioxidant capacity, and antibacterial activity of the extracts. RESULTS: High contents of protein (18.61 g 100 g-1), insoluble dietary fiber (34.75 g 100 g-1), ascorbic acid (81.03 mg 100 g-1), magnesium, potassium, and calcium (649.600, 411.520 and 228.117 mg 100 g-1, respectively) were observed. Extraction using the mixture of solvents of methanol/acetic acid showed the highest yield of phenolic compounds (432.73 mg EAG 100 g-1) and antioxidant capacity using the DPPH assay (3144.92 mg 100 g-1). Bacillus cereus growth was inhibited by the T. paniculatum extracts. CONCLUSIONS: T. paniculatum leaves are a source of nutrients and their extracts have antioxidant and antibacterial potentials which can be used as supplements in food to improve one's health.


Assuntos
Antibacterianos/farmacologia , Antioxidantes/farmacologia , Caryophyllales/química , Nutrientes/análise , Valor Nutritivo , Extratos Vegetais/farmacologia , Folhas de Planta/química , Antibacterianos/análise , Antioxidantes/análise , Bacillus cereus/efeitos dos fármacos , Bacillus cereus/crescimento & desenvolvimento , Compostos de Bifenilo/metabolismo , Brasil , Dieta , Fenóis/análise , Fenóis/farmacologia , Picratos/metabolismo , Extratos Vegetais/química , Plantas Comestíveis/química
19.
Nutrients ; 13(5)2021 May 11.
Artigo em Inglês | MEDLINE | ID: mdl-34064981

RESUMO

Alcoholic liver disease (ALD) is one type of liver disease, causing a global healthcare problem and mortality. The liver undergoes tissue damage by chronic alcohol consumption because it is the main site for metabolism of ethanol. Chronic alcohol exposure progresses from alcoholic fatty liver (AFL) to alcoholic steatohepatitis (ASH), which further lead to fibrosis, cirrhosis, and even hepatocellular cancer. Therapeutic interventions to combat ALD are very limited such as use of corticosteroids. However, these therapeutic drugs are not effective for long-term usage. Therefore, additional effective and safe therapies to cope with ALD are urgently needed. Previous studies confirmed that edible food plants and their bioactive compounds exert a protective effect against ALD. In this review article, we summarized the hepatoprotective potential of edible food plants and their bioactive compounds. The underlying mechanism for the prevention of ALD by edible food plants was as follows: anti-oxidation, anti-inflammation, lipid regulation, inhibition of apoptosis, gut microbiota composition modulation, and anti-fibrosis.


Assuntos
Hepatopatias Alcoólicas/terapia , Plantas Comestíveis/química , Polifenóis/uso terapêutico , Substâncias Protetoras/uso terapêutico , Consumo de Bebidas Alcoólicas , Animais , Etanol/efeitos adversos , Etanol/metabolismo , Fígado Gorduroso Alcoólico/metabolismo , Fígado Gorduroso Alcoólico/terapia , Microbioma Gastrointestinal/efeitos dos fármacos , Humanos , Fígado/efeitos dos fármacos , Fígado/metabolismo , Hepatopatias Alcoólicas/metabolismo , Neoplasias Hepáticas , Compostos Fitoquímicos/química , Compostos Fitoquímicos/uso terapêutico , Extratos Vegetais/uso terapêutico , Substâncias Protetoras/química
20.
Biomed Pharmacother ; 140: 111639, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-34091179

RESUMO

The endocannabinoid system (ECS), a conserved physiological system emerged as a novel pharmacological target for its significant role and potential therapeutic benefits ranging from neurological diseases to cancer. Among both, CB1 and CB2R types, CB2R have received attention for its pharmacological effects as antioxidant, anti-inflammatory, immunomodulatory and antiapoptotic that can be achieved without causing psychotropic adverse effects through CB1R. The ligands activate CB2R are of endogenous, synthetic and plant origin. In recent years, ß-caryophyllene (BCP), a natural bicyclic sesquiterpene in cannabis as well as non-cannabis plants, has received attention due to its selective agonist property on CB2R. BCP has been well studied in a variety of pathological conditions mediating CB2R selective agonist property. The focus of the present manuscript is to represent the CB2R selective agonist mediated pharmacological mechanisms and therapeutic potential of BCP. The present narrative review summarizes insights into the CB2R-selective pharmacological properties and therapeutic potential of BCP such as cardioprotective, hepatoprotective, neuroprotective, nephroprotective, gastroprotective, chemopreventive, antioxidant, anti-inflammatory, and immunomodulator. The available evidences suggest that BCP, can be an important candidate of plant origin endowed with CB2R selective properties that may provide a pharmacological rationale for its pharmacotherapeutic application and pharmaceutical development like a drug. Additionally, given the wide availability in edible plants and dietary use, with safety, and no toxicity, BCP can be promoted as a nutraceutical and functional food for general health and well-being. Further, studies are needed to explore pharmacological and pharmaceutical opportunities for therapeutic and preventive applications of use of BCP in human diseases.


Assuntos
Canabinoides/farmacologia , Sesquiterpenos Policíclicos/farmacologia , Receptor CB2 de Canabinoide/metabolismo , Animais , Suplementos Nutricionais , Humanos , Plantas Comestíveis/química , Sesquiterpenos/farmacologia
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