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1.
Front Pharmacol ; 14: 1136446, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37251315

RESUMO

Developing evidence-based uses of herbal medicines and natural product-based drug discovery are two core aims of ethnopharmacology. This requires an understanding of the medicinal plants and the traditional medical knowledge associated with them which is a basis for cross-cultural comparison. The botanical drugs of traditional medical systems are still not understood well, even for well-known and widely respected traditions like Ayurveda. In this study, a quantitative ethnobotanical analysis was performed on the single botanical drugs included in the Ayurvedic Pharmacopoeia of India (API), presenting an overview on the medicinal plants of Ayurveda from perspectives of plant systematics and medical ethnobotany. Part-I of API includes 621 single botanical drugs, which are sourced from 393 species (323 genera in 115 families). Of these, 96 species yield two or more drugs, together accounting for 238 drugs. Taking the traditional concepts, biomedical uses and the pragmatic disease classification into account, therapeutic uses of these botanical drugs are sorted into 20 categories, which meet primary health demands. The therapeutic uses of the drugs sourced from the same species may differ considerably, but 30 of the 238 drugs are used in highly similar way. The comparative phylogenetic analysis identifies 172 species with high potential for specific therapeutic uses. This medical ethnobotanical assessment for the first time provides a comprehensive understanding on the single botanical drugs in API from the perspective of medical botany using an "etic" (scientist-oriented) approach. This study also highlights the importance of quantitative ethnobotanic methods in understanding traditional medical knowledge.

2.
Chin Herb Med ; 15(1): 6-14, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36875443

RESUMO

Food-medicine products are important materials for daily health management and are increasingly popular in the global healthy food market. However, because of the biocultural difference, food-medicine knowledge may differ among regions, which hinders the global sharing of such health strategies. Aim at bridging the food-medicine knowledge in the East and West, this study traced the historical roots of food and medicine continuum of the East and West, which was followed by a cross-cultural assessment on the importance of food-medicine products of China, thereafter, the current legislative terms for food-medicine products were studied using an international survey. The results show that the food and medicine continuum in the East and West have their historical roots in the traditional medicines since antiquity, and the food-medicine knowledge in the East and West differs substantially; although the food-medicine products have common properties, their legislative terms are diverse globally; with proofs of traditional uses and scientific evidence, food-medicine products are possible for cross-cultural communication. Finally, we recommend facilitating the cross-cultural communication of the food-medicine knowledge in the East and West, thus to make the best use of the traditional health wisdom in the globe.

5.
PeerJ ; 10: e13208, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35433122

RESUMO

Bupleuri Radix is the dry root of certain species of the genus Bupleurum and is commonly used in traditional Chinese medicine. The increasing global demand for Bupleuri Radix cannot be fulfilled with wild populations only. Therefore, cultivated Bupleurum is now the main commercial source of this medicinal product. Different species of Bupleurum show different medicinal properties and clinical effects, making reliable authentication and assignment of correct botanical origin for medicinal species critical. However, accurate identification of the cultivated Bupleurum species is difficult due to dramatic morphological variations resulting from cultivation. In this study, we sampled 56 cultivated Bupleurum populations of six different morphotypes (Types A-F) from the main production areas of China, and 10 wild populations of four species were used as reference materials. Conventional DNA barcoding was conducted to identify cultivated Bupleurum species. Additionally, verification based on complete chloroplast genomes was performed and new chloroplast markers were developed and evaluated. The combination of these methods resulted in the successful identification of all cultivated Bupleurum individuals. Three chloroplast regions are recommended as additional barcodes for the genus: ycf4_cemA, psaJ_rpl33, and ndhE_ndhG. This is a reliable and promising strategy that can be applied to the authentication of natural products and the identification of other medicinal plant species with similar taxonomic problems.


Assuntos
Bupleurum , Genoma de Cloroplastos , Plantas Medicinais , Humanos , Código de Barras de DNA Taxonômico , Raízes de Plantas/genética , Plantas Medicinais/genética , Medicina Tradicional Chinesa , Bupleurum/genética
7.
Front Pharmacol ; 12: 782962, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34803722

RESUMO

Cistanche deserticola Ma was used as a medicine food homology, which was mainly produced in the Alxa region of northwest China. In recent years, it has been widely used in various food items. The increasing demand for Cistanches Herba has led to problems such as overexploitation and quality deterioration. The quality and safety of herbal medicines are critical and have been shown to be affected by the value chain (VC). Using the VC framework, the study is embedded in a larger study aiming to investigate the effects of different VCs types on the quality and stakeholders of Cistanches Herba. In this study, 90 Cistanches Herba samples were collected during fieldwork. An additional 40 samples were obtained from the herbal markets and medicine purchasing stations. Semi-structured interviews and key informant interviews were performed to collect data on stakeholders in major production areas. These samples were analyzed using high performance liquid chromatography (HPLC) coupled with the k-means clustering method; a targeted quality assessment strategy based on chemical analysis was adopted to understand the quality of Cistanches Herba. Based on market research, the collected samples were divided into different grades through k-means clustering analysis. Moreover, quality differences of Cistanches Herba in Alxa region were explored through DNA barcoding and chemical analysis. Accordingly, 10 different types of VCs were determined in the production of Cistanches Herba. The results show that there is a close relationship between the quality of Cistanches Herba and stakeholder benefits. Vertical integration at different levels was found for independent farmer-based VCs, horizontal collaboration was found in the cooperative-based VCs. The vertical coordination has led to a more consistent traceability system and strict regulation of supply chains. At the same time, the Cistanches Herba were divided into three grades. Through DNA barcoding and chemical analysis, we found that the quality differences between Cistanches Herba in the Alxa area were not significant. It was found that geographical suitability and vertical integration could impact the quality and sustainable production of Cistanches Herba. At the same time, the well-developed VCs can provide products with reliable quality, and ensure adequate financial revenue for relevant stakeholders.

8.
Front Pharmacol ; 12: 708518, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34335270

RESUMO

Ethnobotanical knowledge is indispensable for the conservation of global biological integrity, and could provide irreplaceable clues for bioprospecting aiming at new food crops and medicines. This biocultural diversity requires a comprehensive documentation of such intellectual knowledge at local levels. However, without systematically capturing the data, those regional records are fragmented and can hardly be used. In this study, we develop a framework to assemble the cross-cultural ethnobotanical knowledge at a genus level, including capturing the species' diversity and their cultural importance, integrating their traditional uses, and revealing the intercultural relationship of ethnobotanical data quantitatively. Using such a cross-cultural ethnobotanical assembly, the medicinal and culinary values of the genus Lycium are evaluated. Simultaneously, the analysis highlights the problems and options for a systematic cross-cultural ethnobotanical knowledge assembly. The framework used here could generate baseline data relevant for conservation and sustainable use of plant diversity as well as for bioprospecting within targeting taxa.

9.
Am J Chin Med ; 49(6): 1315-1367, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34247562

RESUMO

Dragon's blood (DB) refers mainly to the crimson resin of many Dracaena spp. DB has been used by different traditional medicine systems worldwide, including Arabic medicine, African medicine, traditional Chinese medicine, Thai medicine, etc. DB are mainly used to heal wounds, kill pain, stop bleeding, and cure various diseases such as diarrhea, dysentery and ulcers for over 1000 years. 11 Dracaena spp. and 3 subspecies are reported to be able to produce red resin. However, the resources are extremely deficient. Several Dracaena spp. are in threatened status. Over 300 compounds have been isolated from Dracaena spp., mainly including flavonoids, steroids, and phenolics. DB exhibits anti-inflammatory, analgesic, antithrombotic, anti-oxidant, antimicrobial, antidiabetic, and anticancer properties, which explain its wound healing effects, preventive effects on cardiovascular and cerebrovascular diseases, dual-directional regulation of blood flow, neuroprotection and radioprotective effects. No apparent side effects or toxicity have been reported. DB are restricted from being exploited due to limited resources and unclear resin formation mechanism. It is necessary to expand the cultivation of Dracaena spp. and fully understand the mechanism underlying the resin formation process to develop an effective induction method for the sustainable utilization of DB.


Assuntos
Dracaena/química , Extratos Vegetais/química , Extratos Vegetais/farmacologia , Resinas Vegetais/química , Resinas Vegetais/farmacologia , Humanos
10.
J Ethnopharmacol ; 276: 114185, 2021 Aug 10.
Artigo em Inglês | MEDLINE | ID: mdl-33964363

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: For over one millennium, goji berries have been used traditionally as food and medicine in eastern Asia. In recent decades, it has become increasingly popular globally. However, the biocultural development of goji is poorly known. The botanical origin of goji is controversial: in many but not all modern regional or international quality standards, L. barbarum is accepted exclusively as the botanical origin of goji. AIM OF THE STUDY: Focusing on historical, biogeographical, botanical, phytochemical and pharmacological data, the overarching aim is to understand the biological origin of goji's historical uses, as well as whether the two species can be used interchangeably. MATERIALS AND METHODS: The taxonomic literature on L. barbarum and L. chinense were analysed, followed by a study of botanical specimens and fieldwork. Historical herbals and gazetteers were employed to define the historical producing areas and medical properties of goji. An identification of the species used in history was carried out. In a final step the phytochemical and pharmacological literature on the species was compared. RESULTS AND DISCUSSION: Due to their morphological similarity and different accessibility, fruits of both L. barbarum and L. chinense have been used interchangeably as food and medicine at least since 682 CE. While the fruit of L. barbarum was recognized to be superior in quality, the fruit of L. chinense was commonly used as an equivalent because of its easier accessibility. Cultivation of L. barbarum in China since 1960s improved its availability, which likely lead to its exclusive use as source of goji in China. The long-term safe use with no reported major safety concerns supports that these two species both are useful sources for medicinal Lycium. CONCLUSIONS: Medicinal plants had been used traditionally long before they were named in scientific nomenclature system. Therefore, the understanding of traditional herbal knowledge and the adequate use of those traditional medicines require a reliable identification based on archival records. This study developed an approach for the identification of species used historically, with an integrated analysis of specimens, historical herbals, and national gazetteers. Additionally, their different chemical profiles and pharmacological activities indicate that they should not be used interchangeably. Further scientific evidence is required for their safe and effective use.


Assuntos
Frutas/química , Lycium/química , Animais , Antioxidantes/análise , Antioxidantes/química , Antioxidantes/farmacologia , Antioxidantes/uso terapêutico , China , Etnobotânica , Ásia Oriental , Alimentos , Frutas/classificação , Humanos , Lycium/classificação , Compostos Fitoquímicos/análise , Compostos Fitoquímicos/química , Compostos Fitoquímicos/farmacologia , Compostos Fitoquímicos/uso terapêutico , Plantas Medicinais
11.
J Ethnopharmacol ; 277: 114245, 2021 Sep 15.
Artigo em Inglês | MEDLINE | ID: mdl-34052351

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: "Mutong" ( in Chinese, and generally known as Akebiae Caulis), which refers to a group of herbal medicines with different biological origins along history, has been used in traditional Chinese medicine for over 2000 years; it is still being frequently used in medicine. In recent decades, Akebiae Caulis has been reported to exhibit apparent toxicity. AIM OF THIS STUDY: To clarify the plant species used as Akebiae Caulis and its synonyms, and to summarize their phytochemistry, pharmacology, and toxicology. METHODS: Academic search engines (Google Scholar, Baidu Scholar, CNKI, Science Direct, Springer Link, SciFinder, PubMed, Web of Science, and EBSCO), ancient Chinese herbals, and modern medical monographs were used to obtain phytochemical, pharmacological, toxicological, and quality control information. Furthermore, a field survey was conducted to clarify the associated species. RESULTS: Akebiae Caulis is derived from eight species belonging to two families. In the 2005 Pharmacopoeia of The People's Republic of China, it has been separated into two categories: Akebiae Caulis and Clematidis Armandii Caulis. Traditionally, Akebiae Caulis has been used to treat conditions such as gonorrhea, edema, and tongue sores. Pharmacological studies have demonstrated the anti-inflammatory, antitumor, antihypertensive, antibacterial, analgesic, and other properties of Akebiae Caulis. Among the species used, Aristolochiae manshuriensis Kom. (Aristolochiaceae) contains aristolochic acid that has raised concerns globally because of its nephrotoxicity. CONCLUSIONS: Clarifying the biological origin of traditional herbal medicines is critical for their safe and effective use. The present review revealed that the biological origin of Akebiae Caulis is diverse. The traditional uses, phytochemistry, and pharmacology of Akebiae Caulis indicate that it is a useful medical resource. The diversity of its biological and pharmacological activities is associated with the presence of a large number of chemical substances, among which terpenoids are predominant. Systematic reviews on Akebiae Caulis such as this one would provide solid references for its safe use, as well as drug discovery studies in the future.


Assuntos
Medicamentos de Ervas Chinesas/farmacologia , Compostos Fitoquímicos/farmacologia , Animais , Medicamentos de Ervas Chinesas/efeitos adversos , Medicamentos de Ervas Chinesas/química , Etnofarmacologia , Humanos , Medicina Tradicional Chinesa/métodos , Compostos Fitoquímicos/efeitos adversos , Compostos Fitoquímicos/isolamento & purificação , Fitoterapia/métodos
12.
J Ethnobiol Ethnomed ; 17(1): 19, 2021 Mar 23.
Artigo em Inglês | MEDLINE | ID: mdl-33757555

RESUMO

BACKGROUND: The Chuanqing people () are a linguistic group native to the Guizhou Province of China, with unique culture and rich knowledge of traditional medicinal plants. Herbal market at Dragon Boat Festival (DBF) plays an important role in the inheritance of traditional medicinal knowledge among the Chuanqing people. This study aims to record the profile of medicinal plants of the Chuanqing people, discuss the dilemmas faced by their inheritance, and propose some strategies for passing down information, which is critical for the inheritance and protection of the Chuanqing people's traditional medical knowledge. METHODS: Data were collected through key informants and semi-structured interviews and free listing. Collected voucher specimens were identified using by botanical taxonomy method and deposited in the herbarium. Data were analyzed through use-value (UV) and cultural importance index (CI) values. Medicinal plants were compared with the Information System of Chinese Rare and Endangered Plants of the Chinese Academy of Sciences. Results were compared with the Pharmacopoeia of the People's Republic of China (ChP), the Quality Standard of Traditional Chinese Medicine and National Medicine in Guizhou Province (QSG), and traditional medicines of Southeast Asian countries. RESULTS: A total of 102 species from 53 families and 92 genera were recorded, with Orchidaceae and Asparagaceae (six species each), and Berberidaceae and Asteraceae (five species each) as the predominant families. The whole plant (36%) was the most common medicinal part. Decoction (44%) was the most common preparation method. Seventy-one investigated human ailments were grouped into 12 categories. Diseases of the musculoskeletal system (34 mentions) were most frequently mentioned in this study. Moreover, the most frequently used taxon was Hedera sinensis (Tobler ) Hand.-Mazz. (UV and CI = 0.29). The Chuanqing people's medicine was highly similar to ChP and QSG. In comparison with Southeast Asian countries' traditional medicines, except for the same preparation methods, the similarities in terms of medicinal ingredients, plants, and disease treatment were very low. CONCLUSIONS: The herbal market at the DBF is an important platform for exchanging knowledge about the Chuanqing people's traditional medicinal plants. The Chuanqing people's traditional medicine is facing many challenges to its inheritance and development. To solve these problems, this study highlights the traditional medicinal knowledge of the Chuanqing people, providing basic data for further research and protection of minority medicine.


Assuntos
Etnobotânica , Plantas Medicinais/classificação , Adulto , Idoso , Idoso de 80 Anos ou mais , China , Espécies em Perigo de Extinção , Etnicidade , Feminino , Férias e Feriados , Humanos , Conhecimento , Masculino , Medicina Tradicional Chinesa , Pessoa de Meia-Idade , Adulto Jovem
13.
Front Pharmacol ; 11: 562376, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33343346

RESUMO

Radix Astragali (RA), the root of Astragalus membranaceus var. mongholicus (Bunge) P.K. Hsiao, known as "Huangqi" in Chinese, has been used as a traditional herbal medicine or food in China for more than 2,000 years and is now consumed globally. Unfortunately, the increasing demand for RA has led to the overexploitation of its wild stock, as well as quality problems, including adulteration and contamination. Therefore, the sustainable cultivation of RA is urgently needed. In the present research, semi-structured interviews and key informant interviews were conducted, over a 2-year period, to collect data from stakeholders in the main production areas; moreover, a targeted chemical analysis-based quality assessment strategy was applied to understand the quality of RA. Accordingly, 10 different types of value chains (VCs) were identified in RA production; meanwhile, the contents of the main active ingredients (astragaloside and calycosin-7-O-ß-D-glucoside) were analyzed by HPLC-ELSD-UV and the yield of medicinal material was demined and further analyzed using k-means clustering analysis. The results show that the tight relationship between quality of the RA and stakeholders' revenues among the VCs, which reflects a more general trend in the production system. Over the past few decades, vertical coordination has emerged increasingly in VCs of RA, which leads to a more coherent traceability system and rigorous regulations in the supply chains. Daodi herbs can be considered to be a standard that is distinctive with good quality characteristics that emphasize the origins of the medicinal plants. We find that the suitability of geographical areas and vertical integration can improve the VCs of RA, which further contributes to its quality control, as well as its sustainable production.

14.
J Ethnopharmacol ; 263: 113154, 2020 Dec 05.
Artigo em Inglês | MEDLINE | ID: mdl-32763418

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: The genus Orobanche consists of annual, biennial or perennial fleshy parasitic herb species, many of which are in use as traditional medicines and wild gathered foods since a long time. Recently, Orobanche spp. are increasingly accepted as edible medicines with nourishing properties. However, there is a lack of comprehensive understanding of their ethnopharmacological background. AIM OF THE REVIEW: This review focuses on the advancements in botanical classification, and summary of traditional use, phytochemistry, pharmacology and toxicology of Orobanche species, in order to check for scientific support of their traditional uses and the safe treatment of human ailments and diseases. MATERIALS AND METHODS: In this review, the results of a systematic and comprehensive literature survey about Orobanche spp over the past 60 years (from 1960 to 2020) is presented. The selected literature includes periodicals, doctoral dissertations, master dissertations conference papers and various books. The literature was identified through search engine websites and a cross-checked with the Chinese pharmacopeia, classic Chinese and European herbals, regional medicinal monographs, and online ethnobotanical databases. RESULTS: The literature about the traditional uses revealed that Orobanche spp. were used as medicine and food in many regions of the world, but mainly in China and North America while in Europe they were primarily used as food items. Phenylpropanoid derivatives and alkaloids, were reported as their main bioactive compounds, showing antioxidant, immune system enhancing, androgenic, antibacterial and antiviral properties. CONCLUSIONS: Orobanche spp. are increasingly being used for tonic purposes in China. Their ethnopharmacological background suggests potential usages as healthy foods and food supplements. They have the potential to be developed into herbal medicines for tonifying the kidney, against impotence and spermatorrhea, dermatological problems and wounds, as well as infantile diarrhoea. However, the pharmacological studies conducted with extracts derived from Orobanche spp. were not useful for rationally explaining the traditional uses. More investigations are required to provide a pharmacological basis for the traditional claims and the relationship between traditional uses, clinical uses, phytochemistry and pharmacological properties. Additionally, quality control should be emphasized to ensure the safe and effective use of Orobanche derived products.


Assuntos
Etnofarmacologia/métodos , Alimentos , Medicina Tradicional/métodos , Orobanche , Extratos Vegetais/administração & dosagem , Plantas Medicinais , Animais , China/etnologia , Etnofarmacologia/tendências , Europa (Continente)/etnologia , Humanos , Medicina Tradicional/tendências , América do Norte/etnologia , Extratos Vegetais/isolamento & purificação
15.
Int J Biol Macromol ; 130: 508-514, 2019 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-30826406

RESUMO

Neutral polysaccharides from Ningxia L. barbarum fruit have been reported with immunomodulatory and antioxidative biological activities. Few studies on pectic polysaccharides have been reported, especially not from the Xinjiang L. barbarum. In the present study, a pectic polysaccharide, XLBP-I-I, was obtained from water decoction of Xinjiang L. barbarum using anion exchange chromatography and gel filtration. The results from methanolysis, methylation, FT-IR and NMR experiments indicated that XLBP-I-I was a typical pectic polysaccharide. In vitro assay showed that XLBP-I-I could reduce the ER stress and UPR in tunicamycin insult IPEC-J2 cells, and further protect IPEC-J2 cells against apoptosis induced by ER stress. These results reveal a new perspective for pectic L. barbarum polysaccharides on intestine ER stress, and this elicited interests for its further applications.


Assuntos
Estresse do Retículo Endoplasmático/efeitos dos fármacos , Frutas/química , Lycium/química , Extratos Vegetais/química , Extratos Vegetais/farmacologia , Polissacarídeos/farmacologia , Linhagem Celular , Sobrevivência Celular/efeitos dos fármacos , Mucosa Intestinal/efeitos dos fármacos , Mucosa Intestinal/metabolismo , Peso Molecular , Compostos Fitoquímicos/química , Compostos Fitoquímicos/farmacologia , Polissacarídeos/química , Substâncias Protetoras/química , Substâncias Protetoras/farmacologia
16.
J Ethnopharmacol ; 224: 349-358, 2018 Oct 05.
Artigo em Inglês | MEDLINE | ID: mdl-29908314

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: Goji (fruits of Lycium barbarum L. and L. chinense Mill., Solanaceae) have been used as a traditional food and medicine for hundreds of years in Asian countries and are now consumed globally. Quality of herbal medicines is critical for safe use and has been shown to be affected by value chains. AIM OF THE STUDY: Using a value chain (VC) framework, we aim at understanding the influence of different VC types on goji quality and revenue of stakeholders. MATERIALS AND METHODS: Participant observation and semi-structured interviews were conducted during five months of fieldwork in the main production areas in China with a total of 65 stakeholders. Quality of goji, behaviour and financial performance of stakeholders was documented and analysed for different VCs. RESULTS: Ten different types of VCs were identified. VCs with vertical integration and horizontal collaboration were found to have a more coherent quality control and better goji quality as well as improved stakeholders' financial performance. Vertical integration at different levels was found for independent farmer-based VCs, horizontal collaboration was found in the cooperative-based VCs. Full vertically integrated VCs were found in large-scale production. CONCLUSIONS: Goji quality and stakeholders' revenues are linked with different types of VCs which mirror stakeholders' behaviour driven by target markets. Considering their positive influence on quality and revenues, well-developed vertically integrated value chains are likely to become more important in the near future.


Assuntos
Frutas , Lycium , Controle de Qualidade , China , Inocuidade dos Alimentos , Humanos , Resíduos de Praguicidas/análise , Participação dos Interessados , Enxofre/análise
17.
Front Pharmacol ; 9: 151, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29535631

RESUMO

Goji (fruits of Lycium barbarum L. and L. chinense Mill.) has been used in China as food and medicine for millennia, and globally has been consumed increasingly as a healthy food. Ningxia, with a semi-arid climate, always had the reputation of producing best goji quality (daodi area). Recently, the increasing market demand pushed the cultivation into new regions with different climates. We therefore ask: How does goji quality differ among production areas of various climatic regions? Historical records are used to trace the spread of goji production in China over time. Quality measurements of 51 samples were correlated with the four main production areas in China: monsoon (Hebei), semi-arid (Ningxia, Gansu, and Inner Mongolia), plateau (Qinghai) and arid regions (Xinjiang). We include morphological characteristics, sugar and polysaccharide content, antioxidant activity, and metabolomic profiling to compare goji among climatic regions. Goji cultivation probably began in the East (Hebei) of China around 100 CE and later shifted westward to the semi-arid regions. Goji from monsoon, plateau and arid regions differ according to its fruit morphology, whereas semi-arid goji cannot be separated from the other regions. L. chinense fruits, which are exclusively cultivated in Hebei (monsoon), are significantly lighter, smaller and brighter in color, while the heaviest and largest fruits (L. barbarum) stem from the plateau. The metabolomic profiling separates the two species but not the regions of cultivation. Lycium chinense and samples from the semi-arid regions have significantly (p < 0.01) lower sugar contents and L. chinense shows the highest antioxidant activity. Our results do not justify superiority of a specific production area over other areas. Instead it will be essential to distinguish goji from different regions based on the specific morphological and chemical traits with the aim to understand what its intended uses are.

18.
Int J Biol Macromol ; 112: 356-363, 2018 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-29409772

RESUMO

Purification, characterization and biological activities of polysaccharides from Lycium barbarum pedicel were investigated in this study. Two polysaccharides, PLBP-I-I and PLBP-II-I, were obtained from water extracts by anion exchange chromatography and gel filtration. Structural elucidation based on IR, 1H NMR, and 13C NMR spectra indicated that these two fractions were typical pectic polysaccharides, with homogalacturonan and rhamnogalacturonan type I regions and arabinogalactan side chains, and some of the galacturonic acid units were methyl esterified. Both fractions exhibited potent complement fixating activity and pro-antioxidant defense capacity, and those two fractions showed different activities. The higher complement fixation activity was obtained in fraction PLBP-I-I, while the higher pro-antioxidant defense capacity was obtained in fraction PLBP-II-I, which may be due to the structural differences between those two fractions. Thus, the pedicel of L. barbarum could be used as a potential source for natural immunomodulator and antioxidant.


Assuntos
Antioxidantes/química , Lycium/química , Extratos Vegetais/química , Polissacarídeos/química , Antioxidantes/isolamento & purificação , Antioxidantes/farmacologia , Galactanos/química , Ácidos Hexurônicos/química , Fatores Imunológicos/química , Fatores Imunológicos/isolamento & purificação , Fatores Imunológicos/farmacologia , Espectroscopia de Ressonância Magnética , Pectinas/química , Polissacarídeos/isolamento & purificação , Polissacarídeos/farmacologia
19.
J Ethnopharmacol ; 212: 50-66, 2018 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-29042287

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: Lycium is widely distributed in the arid to semi-arid environments of North and South America, Africa, and Eurasia. In recent years, Lycium barbarum and L. chinense have been advertised as "superfood" with healthy properties. Despite of its popularity, there is a lack of an integrated and critical appraisal of the existing evidence for the use of Lycium. AIM OF THE STUDY: There is a need to understand: 1) Which species were used and how the uses of Lycium developed spatially and over time, 2) how uses differ among regions with different culture backgrounds, and 3) how traditional and current therapeutic and preventive health claims correlate with pharmacological findings. METHODS: Information was retrieved from floras, taxonomic, botanical, and ethnobotanical databases, research articles, recent editions of historical Chinese herbals over the last 2000 years, and pharmacopoeias. RESULTS: Of totally 97 species, 31 have recorded uses as food and/or medicine worldwide. Usually the fruits are used. While 85% of the Lycium species occur in the Americas and Africa, 26% of them are used, but 9 out of 14 species in Eurasia. In China, seven species and two varieties of the genus Lycium occur, of which four species have been used by different ethnic groups. Only L. barbarum and L. chinense have been transformed into globally traded commodities. In China, based on the name "", their use can be traced back over the last two millennia. Lycium fruits for anti-aging, improving eyesight and nourishment were documented already in 500C.E. (Mingyi Bielu). Recent findings explain the pharmacological foundations of the traditional uses. Especially polysaccharides, zeaxanthin dipalmitate, vitamins, betaine, and mixed extracts were reported to be responsible for anti-aging, improving eyesight, and anti-fatigue effects. CONCLUSIONS: The integration of historical, ethnobotanical, botanical, phytochemical and pharmacological data has enabled a detailed understanding of Lycium and its wider potential. It highlights that the focus so far has only been on two species and that the genus can potentially yield a wide range of other products with different properties.


Assuntos
Alimentos , Lycium/química , Plantas Medicinais , Saúde Global , Humanos , Fitoterapia
20.
Zhongguo Zhong Yao Za Zhi ; 38(24): 4271-6, 2013 Dec.
Artigo em Chinês | MEDLINE | ID: mdl-24791529

RESUMO

In order to investigate the comprehensive quality differences of the seeds harvested in different growing time, and offer theoretical guide for the optimization of seeds' production technology, we analyzed the apparent size, 1 000-grain weight, water absorbency, germination indexes, postharvest embryo rate change, relatively contents of coumarins and the yield of single plant of its seeds of different harvesting time, and compared their comprehensive quality by Topsis analysis. The results showed that there existed obvious differences in yield and quality between seeds of 3 harvesting times. While the harvesting time postponed, the yield of single plant raised, and the shrunken seeds rate decreased, the quality of seedlings increased, while the contents of coumarins showed a steady increase, and the germination rate decreased. The comprehensive quality of the seeds harvested in the black ripe time rank the first place, followed by the brown ripe time and the yellow ripe time. As the harvesting time delays, the seeds' comprehensive quality increases, therefore, we could put off the seeds' harvesting time properly for the high efficient seed production.


Assuntos
Bupleurum/crescimento & desenvolvimento , Bupleurum/metabolismo , Sementes/crescimento & desenvolvimento , Bupleurum/fisiologia , Germinação , Proteínas de Plantas/química , Proteínas de Plantas/metabolismo , Controle de Qualidade , Sementes/metabolismo , Sementes/fisiologia , Solubilidade , Fatores de Tempo , Água/metabolismo
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