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1.
Bol. latinoam. Caribe plantas med. aromát ; 23(3): 382-389, mayo 2024. ilus, tab, graf
Artículo en Inglés | LILACS | ID: biblio-1538151

RESUMEN

The extraction of geraniol from palmarosa oil using hydrotropic solvents was investigated. Palmarosa oil possesses an appealing rose aroma and properties like anti - inflammatory, antifungal, and antioxidant due to the presence of geraniol. The extraction of geraniol from palmarosa oil by using distillation methods like steam dis tillation and fractional distillation was a laborious process. So hydrotropes were tried for extraction. The geraniol yield and purity depend on parameters like concentration of hydrotrope, solvent volume ratio, and time period. Using the Box Benkhem Desig n (BBD), the extraction process was optimized. One of the major advantages of using hydrotropic solvents is that they were classified as green solvents, and recovery of solvents is also possible. To reduce the extraction time probe sonication is carried ou t. Different hydrotropic solvents with probe sonication are done on palmarosa oil by altering various process parameters to study the separation, yield, and purity.


Se investigó la extracción de geraniol del aceite de palmarosa utilizando solventes hidrotrópicos. El aceite de palmarosa posee un atractivo aroma a rosa y propiedades antiinflamatorias, antifúngicas y antioxidantes debido a la pr esencia de geraniol. La extracción de geraniol del aceite de palmarosa mediante métodos de destilación como la destilación por vapor y la destilación fraccionada ha sido un proceso laborioso. Por lo tanto, se probaron los hidrotropos para la extracción. El rendimiento y la pureza del geraniol dependen de parámetros como la concentración del hidrotropo, la relación de volumen del solvente y el período de tiempo. Se optimizó el proceso de extracción usando el diseño Box Benkhem (BBD). Una de las principales v entajas de usar solventes hidrotrópicos es que se clasifican como solventes verdes y también es posible recuperar los solventes. Para reducir el tiempo de extracción, se lleva a cabo una sonda de ultrasonido. Se realizan diferentes solventes hidrotropos co n sonda de ultrasonido en el aceite de palmarosa alterando varios parámetros del proceso para estudiar la separación, el rendimiento y la pureza.


Asunto(s)
Cymbopogon/química , Monoterpenos Acíclicos/farmacología , Monoterpenos Acíclicos/química , Aceites de Plantas/farmacología , Aceites de Plantas/química
2.
An Acad Bras Cienc ; 96(2): e20220448, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38775552

RESUMEN

The present study investigated mushroom by-products as a substitute for emulsifiers in the microencapsulation of apricot kernel oil. Mushroom by-product emulsions were more viscous and had higher centrifugal (85.88±1.19 %) and kinetic (90.52±0.98 %) stability than control emulsions (Tween 20 was used as emulsifier). Additionally, spray-drying mushroom by-product emulsions yielded a high product yield (62.56±1.11 %). Furthermore, the oxidative stability of powder products containing mushroom by-products was observed to be higher than that of the control samples. For an accelerated oxidation test, the samples were kept at various temperatures (20, 37, and 60 °C). TOTOX values were assessed as indicators of oxidation, with values exceeding 30 indicating oxidation of the samples. Of the samples stored at 60 °C, the non-microencapsulated apricot kernel oil oxidized by the fifth day (41.12±0.13 TOTOX value), whereas the powder samples containing the mushroom by-products remained unoxidized until the end of the tenth day (37.05±0.08 TOTOX value). This study revealed that mushroom by-products could be a viable alternative for synthetic emulsifiers in the microencapsulation of apricot kernel oil. It has been observed that using mushroom by-products instead of synthetic emulsifiers in oil microencapsulation can also delay oxidative degradation in microencapsulated powders.


Asunto(s)
Emulsionantes , Emulsiones , Aceites de Plantas , Prunus armeniaca , Emulsiones/química , Emulsionantes/química , Aceites de Plantas/química , Prunus armeniaca/química , Composición de Medicamentos , Agaricales/química , Oxidación-Reducción , Agua/química
3.
Food Res Int ; 187: 114402, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38763657

RESUMEN

Sacha inchi (Plukenetia huayllabambana) oil is a food matrix that contains more than 80 % of polyunsaturated fatty acids, especially linoleic and α-linolenic acids. The objective of this study was to develop blends of sacha inchi oil (P. huayllabambana) enriched with aguaje oil (Mauritia flexuosa L.f.) and evaluate the induction period, total carotenoid content, nutritional quality indices and oxidative stability from the fatty acid composition. The analytical tests were conducted for oil blends that had the following proportions: sacha inchi oil enriched with aguaje oil at 5, 10 and 20 %. The results prove that the enrichment of sacha inchi oil with aguaje oil (SIO-PH-AO) leads to an improvement in oxidative stability and nutritional and physical properties. For example, the oxidative stability index (OSI) varied from 0.87 to 2.53 h. The content of total carotenoids produces an increase from 0.35 to 99.90 mg/kg, while total polyphenols from 47.45 to 126.90 mg GAE/g, and chroma from 39.91 to 69.02 units. Regarding the fatty acid profile, the oxidizability value improves with the addition of aguaje oil. Reduces levels of PUFA, PUFA/SFA, and hypo-and hypercholesterolemic ratio (h/H). Additionally, an increase in SFA and MUFA levels, while the ω6/ω3 ratio remained constant. Finally, it can be noted that the enrichment of sacha inchi oil with aguaje oil (rich in carotenoids) provides better stability and can be used for commercial applications as a mechanism to establish new vegetable oils with better properties.


Asunto(s)
Carotenoides , Oxidación-Reducción , Aceites de Plantas , Carotenoides/análisis , Carotenoides/química , Aceites de Plantas/química , Valor Nutritivo , Alimentos Fortificados/análisis , Ácidos Grasos Insaturados/análisis
4.
Molecules ; 29(9)2024 Apr 24.
Artículo en Inglés | MEDLINE | ID: mdl-38731433

RESUMEN

The aim of this study was to investigate how dietary modifications with pomegranate seed oil (PSO) and bitter melon aqueous extract (BME) affect mineral content in the spleen of rats both under normal physiological conditions and with coexisting mammary tumorigenesis. The diet of Sprague-Dawley female rats was supplemented either with PSO or with BME, or with a combination for 21 weeks. A chemical carcinogen (7,12-dimethylbenz[a]anthracene) was applied intragastrically to induce mammary tumors. In the spleen of rats, the selected elements were determined with a quadrupole mass spectrometer with inductively coupled plasma ionization (ICP-MS). ANOVA was used to evaluate differences in elemental composition among experimental groups. Multivariate statistical methods were used to discover whether some subtle dependencies exist between experimental factors and thus influence the element content. Experimental factors affected the splenic levels of macroelements, except for potassium. Both diet modification and the cancerogenic process resulted in significant changes in the content of Fe, Se, Co, Cr, Ni, Al, Sr, Pb, Cd, B, and Tl in rat spleen. Chemometric analysis revealed the greatest impact of the ongoing carcinogenic process on the mineral composition of the spleen. The obtained results may contribute to a better understanding of peripheral immune organ functioning, especially during the neoplastic process, and thus may help develop anticancer prevention and treatment strategies.


Asunto(s)
Momordica charantia , Extractos Vegetales , Aceites de Plantas , Granada (Fruta) , Ratas Sprague-Dawley , Bazo , Animales , Bazo/efectos de los fármacos , Bazo/metabolismo , Femenino , Ratas , Granada (Fruta)/química , Extractos Vegetales/química , Extractos Vegetales/farmacología , Momordica charantia/química , Aceites de Plantas/química , Aceites de Plantas/farmacología , Suplementos Dietéticos , Semillas/química , Neoplasias de la Mama/inducido químicamente , Neoplasias de la Mama/metabolismo , Neoplasias de la Mama/patología , Neoplasias Mamarias Experimentales/inducido químicamente , Neoplasias Mamarias Experimentales/patología , Neoplasias Mamarias Experimentales/metabolismo
5.
Molecules ; 29(9)2024 Apr 25.
Artículo en Inglés | MEDLINE | ID: mdl-38731460

RESUMEN

Tanacetum parthenium L. (Asteraceae) is a perennial herbaceous plant with a long-standing historical use in traditional medicine. Recently Tanacetum parthenium L. essential oil has been associated with a promising potential for future applications in the pharmaceutical industry, in the cosmetics industry, and in agriculture. Investigations on the essential oil (EO) have indicated antimicrobial, antioxidant, and repellent activity. The present study aimed to evaluate the chemical composition of Bulgarian T. parthenium essential oil from two different regions, to compare the results to those reported previously in the literature, and to point out some of its future applications. The essential oils of the air-dried flowering aerial parts were obtained by hydrodistillation using a Clevenger-type apparatus. The chemical composition was evaluated using gas chromatography with mass spectrometry (GC-MS). It was established that the oxygenated monoterpenes were the predominant terpene class, followed by the monoterpene hydrocarbons. Significant qualitative and quantitative differences between both samples were revealed. Camphor (50.90%), camphene (16.12%), and bornyl acetate (6.05%) were the major constituents in the feverfew EO from the western Rhodope Mountains, while in the EO from the central Balkan mountains camphor (45.54%), trans-chrysanthenyl acetate (13.87%), and camphene (13.03%) were the most abundant components.


Asunto(s)
Cromatografía de Gases y Espectrometría de Masas , Aceites Volátiles , Tanacetum parthenium , Aceites Volátiles/química , Bulgaria , Tanacetum parthenium/química , Terpenos/química , Terpenos/análisis , Alcanfor/química , Alcanfor/análisis , Aceites de Plantas/química , Monoterpenos Bicíclicos
6.
Molecules ; 29(9)2024 Apr 26.
Artículo en Inglés | MEDLINE | ID: mdl-38731484

RESUMEN

In this study, we developed a green and multifunctional bioactive nanoemulsion (BBG-NEs) of Blumea balsamifera oil using Bletilla striata polysaccharide (BSP) and glycyrrhizic acid (GA) as natural emulsifiers. The process parameters were optimized using particle size, PDI, and zeta potential as evaluation parameters. The physicochemical properties, stability, transdermal properties, and bioactivities of the BBG-NEs under optimal operating conditions were investigated. Finally, network pharmacology and molecular docking were used to elucidate the potential molecular mechanism underlying its wound-healing properties. After parameter optimization, BBG-NEs exhibited excellent stability and demonstrated favorable in vitro transdermal properties. Furthermore, it displayed enhanced antioxidant and wound-healing effects. SD rats wound-healing experiments demonstrated improved scab formation and accelerated healing in the BBG-NE treatment relative to BBO and emulsifier groups. Pharmacological network analyses showed that AKT1, CXCL8, and EGFR may be key targets of BBG-NEs in wound repair. The results of a scratch assay and Western blotting assay also demonstrated that BBG-NEs could effectively promote cell migration and inhibit inflammatory responses. These results indicate the potential of the developed BBG-NEs for antioxidant and skin wound applications, expanding the utility of natural emulsifiers. Meanwhile, this study provided a preliminary explanation of the potential mechanism of BBG-NEs to promote wound healing through network pharmacology and molecular docking, which provided a basis for the mechanistic study of green multifunctional nanoemulsions.


Asunto(s)
Antioxidantes , Emulsionantes , Emulsiones , Ácido Glicirrínico , Simulación del Acoplamiento Molecular , Cicatrización de Heridas , Cicatrización de Heridas/efectos de los fármacos , Animales , Emulsiones/química , Emulsionantes/química , Emulsionantes/farmacología , Ratas , Antioxidantes/farmacología , Antioxidantes/química , Antioxidantes/síntesis química , Ácido Glicirrínico/farmacología , Ácido Glicirrínico/química , Polisacáridos/química , Polisacáridos/farmacología , Tecnología Química Verde , Humanos , Ratas Sprague-Dawley , Nanopartículas/química , Aceites de Plantas/química , Aceites de Plantas/farmacología , Fabaceae/química , Masculino , Tamaño de la Partícula , Movimiento Celular/efectos de los fármacos
7.
Molecules ; 29(9)2024 Apr 26.
Artículo en Inglés | MEDLINE | ID: mdl-38731501

RESUMEN

Bacterial infection is a thorny problem, and it is of great significance to developing green and efficient biological antibacterial agents that can replace antibiotics. This study aimed to rapidly prepare a new type of green antibacterial nanoemulsion containing silver nanoparticles in one step by using Blumea balsamifera oil (BBO) as an oil phase and tea saponin (TS) as a natural emulsifier and reducing agent. The optimum preparation conditions of the AgNPs@BBO-TS NE were determined, as well as its physicochemical properties and antibacterial activity in vitro being investigated. The results showed that the average particle size of the AgNPs@BBO-TS NE was 249.47 ± 6.23 nm, the PDI was 0.239 ± 0.003, and the zeta potential was -35.82 ± 4.26 mV. The produced AgNPs@BBO-TS NE showed good stability after centrifugation and 30-day storage. Moreover, the AgNPs@BBO-TS NE had an excellent antimicrobial effect on Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa. These results demonstrated that the AgNPs@BBO-TS NE produced in this study can be used as an efficient and green antibacterial agent in the biomedical field.


Asunto(s)
Antibacterianos , Emulsiones , Tecnología Química Verde , Nanopartículas del Metal , Pruebas de Sensibilidad Microbiana , Tamaño de la Partícula , Plata , Antibacterianos/farmacología , Antibacterianos/química , Plata/química , Plata/farmacología , Nanopartículas del Metal/química , Staphylococcus aureus/efectos de los fármacos , Aceites de Plantas/química , Aceites de Plantas/farmacología , Pseudomonas aeruginosa/efectos de los fármacos , Escherichia coli/efectos de los fármacos , Escherichia coli/crecimiento & desarrollo , Saponinas/química , Saponinas/farmacología
8.
Molecules ; 29(9)2024 Apr 27.
Artículo en Inglés | MEDLINE | ID: mdl-38731511

RESUMEN

Alginate films plasticized with glycerol and enriched in raspberry and/or black currant seed oils were prepared via casting solution techniques. The intention was to create active films for food packaging where antioxidants in a film would deactivate oxidants in a packed product or its surroundings, improving conditions inside packaging and extending the shelf life of such a product. The prepared materials were characterized by physicochemical, spectroscopic, mechanical, water vapor transmission (WVTR), and antioxidant activity analysis. Infrared spectra of the alginate films with oils were similar to those without the additive; the band with a maximum at about 1740 cm-1 stood out. The prepared materials with oils were thicker, contained less water, were more yellow, and were less permeable to water vapor. Moreover, the presence of the oil in the films resulted in a slightly lower Young's modulus and lower stress at break values but higher strain at break. The antioxidant capacity of raspberry seed oil itself was about five times higher than that of black currant seed oil, and a similar trend was noticed for films modified with these oils. The results indicated that both oils could be used as active substances with antioxidant properties in food packaging.


Asunto(s)
Alginatos , Antioxidantes , Embalaje de Alimentos , Aceites de Plantas , Ribes , Rubus , Semillas , Embalaje de Alimentos/métodos , Alginatos/química , Antioxidantes/química , Antioxidantes/farmacología , Aceites de Plantas/química , Semillas/química , Rubus/química , Ribes/química , Vapor
9.
Molecules ; 29(9)2024 Apr 29.
Artículo en Inglés | MEDLINE | ID: mdl-38731554

RESUMEN

BACKGROUND: Fatty acids are essential for human health. Currently, there is a search for alternative sources of fatty acids that could supplement such sources as staple crops or fishes. Turions of aquatic plants accumulate a variety of substances such as starch, free sugars, amino acids, reserve proteins and lipids. Our aim is to see if turions can be a valuable source of fatty acids. METHODS: Overwintering shoots and turions of aquatic carnivorous plants were collected. The plant material was extracted with hexane. The oils were analyzed using a gas chromatograph with mass spectrometer. RESULTS: The dominant compound in all samples was linolenic acid. The oil content was different in turions and shoots. The oil content of the shoots was higher than that of the turions, but the proportion of fatty acids in the oils from the shoots was low in contrast to the oils from the turions. The turions of Utricularia species were shown to be composed of about 50% fatty acids. CONCLUSIONS: The turions of Utricularia species can be used to obtain oil with unsaturated fatty acids. In addition, the high fatty acid content of turions may explain their ability to survive at low temperatures.


Asunto(s)
Ácidos Grasos , Brotes de la Planta , Ácidos Grasos/análisis , Brotes de la Planta/química , Cromatografía de Gases y Espectrometría de Masas , Ácido alfa-Linolénico/análisis , Aceites de Plantas/química , Aceites de Plantas/análisis
10.
Molecules ; 29(9)2024 May 01.
Artículo en Inglés | MEDLINE | ID: mdl-38731587

RESUMEN

We aimed to obtain the optimal formula for human milk fat substitute (HMFS) through a combination of software and an evaluation model and further verify its practicability through an animal experiment. The results showed that a total of 33 fatty acid (FA) and 63 triglyceride (TAG) molecular species were detected in vegetable oils. Palmitic acid, oleic acid, linoleic acid, 18:1/16:0/18:1, 18:2/16:0/18:2, 18:1/18:1/18:1 and 18:1/18:2/18:1, were the main molecular species among the FAs and TAGs in the vegetable oils. Based on the HMFS evaluation model, the optimal mixed vegetable oil formula was blended with 21.3% palm oil, 2.8% linseed oil, 2.6% soybean oil, 29.9% rapeseed oil and 43.4% maize oil, with the highest score of 83.146. Moreover, there was no difference in the weight, blood routine indices or calcium and magnesium concentrations in the feces of the mice between the homemade mixed vegetable oil (HMVO) group and the commercial mixed vegetable oil (CMVO) group, while nervonic acid (C24:1) and octanoic acid (C8:0) were absorbed easily in the HMVO group. Therefore, these results demonstrate that the mixing of the different vegetable oils was feasible via a combination of computer software and an evaluation model and provided a new way to produce HMFS.


Asunto(s)
Sustitutos de Grasa , Ácidos Grasos , Leche Humana , Aceites de Plantas , Programas Informáticos , Triglicéridos , Humanos , Animales , Aceites de Plantas/química , Ácidos Grasos/química , Leche Humana/química , Ratones , Triglicéridos/química , Sustitutos de Grasa/química , Aceite de Palma/química , Aceite de Soja/química , Aceite de Linaza/química , Aceite de Brassica napus/química , Aceite de Maíz/química , Caprilatos/química , Ácido Palmítico/química , Ácido Oléico/química
11.
Harefuah ; 163(5): 327-330, 2024 May.
Artículo en Hebreo | MEDLINE | ID: mdl-38734949

RESUMEN

INTRODUCTION: The number of medical cannabis licenses in Israel is increasing persistently (over 120,000 approved licenses in October 2022), reaching about 1.5% of adult population. Medical cannabis products are available in two main forms: inflorescence (administered by smoking or evaporation) and cannabis oil (administered sub-lingually). Data from the Israel ministry of health, regarding the split between these forms, show a major preference for inflorescence products over cannabis oils. This preference is increasing over time. This article reviews the main differences between the administration of these forms and their effects on the quality of treatment. It's conclusion is that for the most common cases of cannabis treatment, sublingual oils should be preferred and that the medical community has an important role in driving this change.


Asunto(s)
Marihuana Medicinal , Humanos , Marihuana Medicinal/administración & dosificación , Israel , Cannabis , Aceites de Plantas/administración & dosificación , Administración Sublingual , Adulto , Fumar Marihuana/legislación & jurisprudencia , Inflorescencia , Vías de Administración de Medicamentos
12.
Sci Rep ; 14(1): 10592, 2024 05 08.
Artículo en Inglés | MEDLINE | ID: mdl-38719900

RESUMEN

Umbelliferous (Apiaceae) vegetables are widely consumed worldwide for their nutritive and health benefits. The main goal of the current study is to explore the compositional heterogeneity in four dried umbelliferous vegetables viz, celery, coriander, dill, and parsley targeting their volatile profile using gas chromatography-mass spectrometry (GC-MS). A total of 133 volatile metabolites were detected belonging to 12 classes. Aromatic hydrocarbons were detected as the major components of the analyzed vegetables accounting ca. 64.0, 62.4, 59.5, and 47.8% in parsley, dill, celery, and coriander, respectively. Aliphatic hydrocarbons were detected at ca. 6.39, 8.21, 6.16, and 6.79% in parsley, dill, celery, and coriander, respectively. Polyunsaturated fatty acids (PUFA) of various health benefits were detected in parsley and represented by roughanic acid and α-linolenic acid at 4.99 and 0.47%, respectively. Myristicin and frambinone were detected only in parsley at 0.45 and 0.56%. Investigation of antibacterial activity of umbelliferous vegetables n-hexane extract revealed a moderate antibacterial activity against Gram-positive and Gram-negative bacteria with higher activity for celery and dill against Staphylococcus aureus with inhibition zone 20.3 mm compared to 24.3 mm of the standard antibacterial drug.


Asunto(s)
Antibacterianos , Cromatografía de Gases y Espectrometría de Masas , Hexanos , Fitoquímicos , Verduras , Antibacterianos/farmacología , Antibacterianos/química , Antibacterianos/análisis , Verduras/química , Fitoquímicos/química , Fitoquímicos/análisis , Fitoquímicos/farmacología , Hexanos/química , Apiaceae/química , Pruebas de Sensibilidad Microbiana , Derivados de Alilbenceno , Ácido alfa-Linolénico/análisis , Ácido alfa-Linolénico/farmacología , Aceites Volátiles/farmacología , Aceites Volátiles/química , Aceites de Plantas/farmacología , Aceites de Plantas/química , Extractos Vegetales/farmacología , Extractos Vegetales/química , Ácidos Grasos Insaturados/análisis , Staphylococcus aureus/efectos de los fármacos , Dioxolanos
13.
Food Res Int ; 186: 114381, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38729735

RESUMEN

Lipid has crucial applications in improving the quality of starchy products during heat processing. Herein, the influence of lipid modification and thermal treatment on the physicochemical properties and starch digestibility of cooked rice prepared with varied addition manipulations was investigated. Rice bran oil (RO) and medium chain triglyceride oil (MO) manipulations were performed either before (BC) or after cooking (AC). GC-MS was applied to determine the fatty acid profiles. Nutritional quality was analyzed by quantifying total phenolics, atherogenic, and thrombogenic indices. All complexes exhibited higher surface firmness, a soft core, and less adhesive. FTIR spectrum demonstrated that the guest component affected some of the dense structural attributes of V-amylose. The kinetic constant was in the range between 0.47 and 0.86 min-1 wherein before mode presented a higher value. The lowest glucose release was observed in the RO_BC sample, whereas the highest complexing index was observed in the RO_AC sample, indicating that the dense molecular configuration of complexes that could resist enzymatic digestion was more critical than the quantity of complex formation. Despite the damage caused by mass and heat transfer, physical barrier, intact granule forms, and strengthened dense structure were the central contributors affecting the digestion characteristics of lipid-starch complexes.


Asunto(s)
Culinaria , Digestión , Oryza , Aceite de Salvado de Arroz , Almidón , Triglicéridos , Oryza/química , Almidón/química , Aceite de Salvado de Arroz/química , Triglicéridos/química , Calor , Ácidos Grasos/análisis , Ácidos Grasos/química , Aceites de Plantas/química , Espectroscopía Infrarroja por Transformada de Fourier , Valor Nutritivo , Amilosa/química , Cromatografía de Gases y Espectrometría de Masas
14.
Parasit Vectors ; 17(1): 202, 2024 May 06.
Artículo en Inglés | MEDLINE | ID: mdl-38711138

RESUMEN

BACKGROUND: The Lone Star tick, Amblyomma americanum is important to human health because of a variety of pathogenic organisms transmitted to humans during feeding events, which underscores the need to identify novel approaches to prevent tick bites. Thus, the goal of this study was to test natural and synthetic molecules for repellent activity against ticks in spatial, contact and human fingertip bioassays. METHODS: The efficacy of essential oils and naturally derived compounds as repellents to Am. americanum nymphs was compared in three different bioassays: contact, spatial and fingertip repellent bioassays. RESULTS: Concentration response curves after contact exposure to 1R-trans-chrysanthemic acid (TCA) indicated a 5.6 µg/cm2 concentration required to repel 50% of ticks (RC50), which was five- and sevenfold more active than DEET and nootkatone, respectively. For contact repellency, the rank order of repellency at 50 µg/cm2 for natural oils was clove > geranium > oregano > cedarwood > thyme > amyris > patchouli > citronella > juniper berry > peppermint > cassia. For spatial bioassays, TCA was approximately twofold more active than DEET and nootkatone at 50 µg/cm2 but was not significantly different at 10 µg/cm2. In spatial assays, thyme and cassia were the most active compounds tested with 100% and 80% ticks repelled within 15 min of exposure respectively and was approximately twofold more effective than DEET at the same concentration. To translate these non-host assays to efficacy when used on the human host, we quantified repellency using a finger-climbing assay. TCA, nootkatone and DEET were equally effective in the fingertip assay, and patchouli oil was the only natural oil that significantly repelled ticks. CONCLUSIONS: The differences in repellent potency based on the assay type suggests that the ability to discover active tick repellents suitable for development may be more complicated than with other arthropod species; furthermore, the field delivery mechanism must be considered early in development to ensure translation to field efficacy. TCA, which is naturally derived, is a promising candidate for a tick repellent that has comparable repellency to commercialized tick repellents.


Asunto(s)
Amblyomma , Aceites Volátiles , Animales , Aceites Volátiles/farmacología , Aceites Volátiles/química , Amblyomma/efectos de los fármacos , Repelentes de Insectos/farmacología , Humanos , Aceites de Plantas/farmacología , Aceites de Plantas/química , Ninfa/efectos de los fármacos , Bioensayo , DEET/farmacología
15.
PLoS One ; 19(5): e0301254, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38713689

RESUMEN

Oil seed crops are the second most important field crops after cereals in the agricultural economy globally. The use and demand for oilseed crops such as groundnut, soybean and sunflower have grown significantly, but climate change is expected to alter the agroecological conditions required for oilseed crop production. This study aims to present an approach that utilizes decision-making tools to assess the potential climate change impacts on groundnut, soybean and sunflower yields and the greenhouse gas emissions from the management of the crops. The Decision Support Tool for Agrotechnology Transfer (DSSAT v4.7), a dynamic crop model and the Cool Farm Tool, a GHG calculator, was used to simulate yields and estimate GHG emissions from these crops, respectively. Four representative concentration pathways (RCPs 2.6, 4.5, 6.0, and 8.5), three nitrogen (0, 75, and 150 kg/ha) and phosphorous (0, 30 and 60 P kg/ha) fertilizer rates at three sites in Limpopo, South Africa (Ofcolaco, Syferkuil and Punda Maria) were used in field trials for calibrating the models. The highest yield was achieved by sunflower across all crops, years and sites. Soybean yield is projected to decrease across all sites and scenarios by 2030 and 2050, except at Ofcolaco, where yield increases of at least 15.6% is projected under the RCP 4.5 scenario. Positive climate change impacts are predicted for groundnut at Ofcolaco and Syferkuil by 2030 and 2050, while negative impacts with losses of up to 50% are projected under RCP8.5 by 2050 at Punda Maria. Sunflower yield is projected to decrease across all sites and scenarios by 2030 and 2050. A comparison of the climate change impacts across sites shows that groundnut yield is projected to increase under climate change while notable yield losses are projected for sunflower and soybean. GHG emissions from the management of each crop showed that sunflower and groundnut production had the highest and lowest emissions across all sites respectively. With positive climate change impacts, a reduction of GHG emissions per ton per hectare was projected for groundnuts at Ofcolaco and Syferkuil and for sunflower in Ofcolaco in the future. However, the carbon footprint from groundnut is expected to increase by 40 to 107% in Punda Maria for the period up to 2030 and between 70-250% for 2050, with sunflower following a similar trend. We conclude that climate change will potentially reduce yield for oilseed crops while management will increase emissions. Therefore, in designing adaptation measures, there is a need to consider emission effects to gain a holistic understanding of how both climate change impacts on crops and mitigation efforts could be targeted.


Asunto(s)
Cambio Climático , Productos Agrícolas , Productos Agrícolas/crecimiento & desarrollo , Sudáfrica , Semillas/crecimiento & desarrollo , Glycine max/crecimiento & desarrollo , Helianthus/crecimiento & desarrollo , Modelos Teóricos , Fertilizantes/análisis , Gases de Efecto Invernadero/análisis , Aceites de Plantas , Agricultura/métodos
16.
J Oleo Sci ; 73(5): 657-664, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38692889

RESUMEN

This present work investigated the influence of black rice anthocyanins as antioxidants on the oxidation stability of oil. Malonic acid, succinic acid and succinic anhydride were grafted on black rice anthocyanins through acylation method to improve their antioxidant activity in oil. The results from fourier transform infrared spectroscopy (FTIR) showed new absorption peaks near 1744 cm -1 and 1514 cm -1 , which implied that malonic acid, succinic acid and succinic anhydride grafted on the -OH of glucoside and rutinoside through esterification reaction and resulted that the polarity of these were reduced. Total content of anthocyanin (TAC) decreased to 166. 3 mg/g, 163.7 mg/g and 150.2 mg/g, respectively after modification with succinic acid, malonic acid and succinic anhydride. Compared with native anthocyanins, the acylation of black rice anthocyanins partially reduced its antioxidant activity. In addition, DPPH clearance of molecular modified anthocyanins decreased to 62.6% (San-An). As revealed in the oil stability through the determination of primary oxidation products (PV) and secondary oxidation products (p-AV), Sa-An, Ma-An and San-An showed stronger antioxidant activity in Schaal oven accelerated oxidation test during 12 days than native black rice anthocyanin in both corn oil and flaxseed oil. Molecular modified black rice anthocyanins are expected to be used as colorants, antioxidants, etc. in oil-rich food.


Asunto(s)
Antocianinas , Antioxidantes , Oryza , Oxidación-Reducción , Antocianinas/química , Antocianinas/farmacología , Antioxidantes/farmacología , Oryza/química , Acilación , Aceites de Plantas/química , Aceites de Plantas/farmacología , Espectroscopía Infrarroja por Transformada de Fourier
17.
J Oleo Sci ; 73(5): 665-674, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38692890

RESUMEN

Sacha inchi seed oil is a food matrix rich in bioactive constituents, mainly polyunsaturated fatty acids. In this study, the characteristics of color, carotenoid content, tocopherols, and volatile aroma compounds in eight sacha inchi seed (Plukenetia volubilis L.) oil accessions were evaluated. Results showed that the oil obtained from the accessions presented a lightness and chroma of 91 to 98 units and 6 to 10 units respectively, while the hue angle ranged between 93 to 97 units. The total carotenoid content in the different accessions ranged from 0.6 to 1.5 mg/kg, while γ- and δ-tocopherol ranged from 861.6 to 1142 mg/kg and 587 to 717.1 mg/kg. In addition, the total content of tocopherols varied between 1450 and 1856 mg/kg and the δ/γ ratio ranged between 0.58 and 0.70. The oils from the accessions PER000408 (861 µg/kg) and PER000411 (896 µg/kg) were those with the higher volatile concentration, especially 1-hepten-3-ol, 2-nonanol, (E)-3-hexen- 1-ol, (E)-2-hexenal, and 1-hexanol. In this study, the variability of the oil obtained from 8 accessions were observed, from which promising accessions can be selected for continuous investigations of the new sacha inchi seed genotypes.


Asunto(s)
Carotenoides , Aceites de Plantas , Semillas , Tocoferoles , Compuestos Orgánicos Volátiles , Carotenoides/análisis , Tocoferoles/análisis , Semillas/química , Compuestos Orgánicos Volátiles/análisis , Aceites de Plantas/análisis , Aceites de Plantas/química , Brassicaceae/química
18.
J Oleo Sci ; 73(5): 717-727, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38692894

RESUMEN

The anti-diabetic effect of Ficus carica (Fig) seed oil was investigated. 4 groups with 6 rats in each group were used in the experiment as control, diabetes (45 mg/kg streptozotocin), fig seed oil (FSO) (6 mL/ kg/day/rat by gavage) and diabetes+FSO groups. Glucose, urea, creatinine, ALT, AST, GSH, AOPP and MDA analyses were done. Pancreatic tissues were examined histopathologically. When fig seed oil was given to the diabetic group, the blood glucose level decreased. In the diabetes+FSO group, serum urea, creatinine, AOPP, MDA levels and ALT and AST activities decreased statistically significantly compared to the diabetes group, while GSH levels increased significantly, histopathological, immunohistochemical, and immunofluorescent improvements were observed. It has been shown for the first time that FSO has positive effects on blood glucose level and pancreatic health. It can be said that the protective effect of fig seed oil on tissues may be due to its antioxidant activity.


Asunto(s)
Antioxidantes , Glucemia , Diabetes Mellitus Experimental , Ficus , Hipoglucemiantes , Páncreas , Aceites de Plantas , Semillas , Estreptozocina , Animales , Ficus/química , Diabetes Mellitus Experimental/tratamiento farmacológico , Aceites de Plantas/farmacología , Aceites de Plantas/aislamiento & purificación , Semillas/química , Hipoglucemiantes/farmacología , Hipoglucemiantes/aislamiento & purificación , Glucemia/metabolismo , Masculino , Páncreas/efectos de los fármacos , Páncreas/patología , Páncreas/metabolismo , Antioxidantes/farmacología , Ratas , Ratas Wistar , Creatinina/sangre
19.
PLoS One ; 19(5): e0302405, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38709775

RESUMEN

This study investigates the effects of the Russia-Ukraine conflict on the quality and quantity of Malaysia's palm oil production through a time series analysis. The study uses three primary factors to evaluate palm oil production: the Monthly Oil Extraction Rate (OER), the Monthly Fresh Fruit Bunch (FFB) Yield, and the Monthly Oil Exports. The results indicate that the Russia-Ukraine conflict significantly impacted the quality and quantity of palm oil production in Malaysia. Marginal declines in both the quality and quantity of palm oil produced at the onset of the conflict indicate a slight but significant decline in palm oil production during the next four-year period.


Asunto(s)
Aceite de Palma , Malasia , Federación de Rusia , Conflictos Armados , Aceites de Plantas
20.
Rapid Commun Mass Spectrom ; 38(14): e9761, 2024 Jul 30.
Artículo en Inglés | MEDLINE | ID: mdl-38714820

RESUMEN

RATIONALE: Himalayan marmot oil (SPO) has been used for pharmaceutical purposes for centuries, but its composition is still unclear. The bioactivity of SPO highly depends on the techniques used for its processing. This study focused on the comprehensive lipidomics of SPO, especially on the ones derived from dry rendering, wet rendering, cold pressing, and ultrasound-assisted solvent extraction. METHODS: We performed lipid profiling of SPO acquired by different extraction methods using ultrahigh-performance liquid chromatography Q-Exactive Orbitrap mass spectrometry, and 17 classes of lipids (2 BMPs, 12 LysoPCs, 9 LysoPEs, 41 PCs, 24 PEs, 23 Plasmenyl-PCs, 10 Plasmenyl-PEs, 10 MGs, 63 DGs, 187 TGs, 2 MGDGs, 3 Cer[NDS]s, 22 Cer[NS]s, 2 GlcCer[NS]s, 14 SMs, 14 CEs, and 6 AcylCarnitines) were characterized. RESULTS: Fifty-five lipids were differentially altered (VIP > 1.5, p < 0.05) between the extraction techniques, which can be used as potential biomarkers to differentiate SPO extracted by various methods. Additionally, the contents of oleic acid and arachidic acid were abundant in all samples that may suggest their medicinal values and are conducive to in-depth research. CONCLUSIONS: These findings reveal the alterations of lipid profile and free fatty acid composition in SPO obtained with different extraction methods, providing a theoretical foundation for investigating its important components as functional factors in medicines and cosmetics.


Asunto(s)
Lípidos , Marmota , Espectrometría de Masas , Cromatografía Líquida de Alta Presión/métodos , Lípidos/química , Lípidos/análisis , Espectrometría de Masas/métodos , Aceites de Plantas/química , Aceites de Plantas/análisis , Lipidómica/métodos , Fraccionamiento Químico/métodos
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