3 Flavonoids
Mostrando 13-24 de 336 artigos, teses e dissertações.
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13. In vitro anti-aging activities of ginkgo biloba leaf extract and its chemical constituents
Abstract To determine in vitro anti-aging activity and identify the active chemical constituents in Ginkgo leaf extracts. The antioxidant properties of Ginkgo biloba leaves extracts were evaluated using 1,1-diphenyl-2-picrylhydrazyl radical (DPPH) scavenging and 2,2’-azino-bis (3-ethylbenzothiazoline)-6 sulfonic acid radical (ABTS) scavenging assays. The i
Food Sci. Technol. Publicado em: 2020-06
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14. PERFIL METABÓLICO DOS EXTRATOS POLARES DAS FOLHAS, GALHOS E CASCAS DE Copaifera multijuga HAYNE (COPAÍBA MARI-MARI DA AMAZÔNIA) POR ESI-EM
Copaifera multijuga Hayne is the main species of the genus in the Amazon region, being exploited for copaiba oil production mainly because of its therapeutic properties. The plant parts (leaves, branches, and barks) are widely used in folk medicine. However, they are little explored in terms of chemical composition. In this study, the polar extracts of leave
Quím. Nova. Publicado em: 2020-01
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15. Comparative analysis of citrus fruits for nutraceutical properties
Abstract Fruits and vegetables (F and V) are valuable for their micronutrients, but many F and V in diverse growth areas have not been scientifically validated for these components. The nutraceutical characteristics of the pulp of eight citrus fruits grown in Pakistan were, therefore, investigated. Expectedly, the fruits differed in moisture (86.9-88.9%), as
Food Sci. Technol. Publicado em: 20/12/2019
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16. Morphological, phytochemical and anti-hyperglycemic evaluation of Brachychiton populneus
Abstract Brachychiton populneus (Schott & Endl.) R.Br., Malvaceae, is one of five Brachychiton species cultivated in Egypt. Little information was found concerning the morphological, phytochemical and biological investigations of B. populneus. Morphological investigations of B. populneus were performed on fresh and dried leaves. Air-dried, ground leafy branc
Rev. bras. farmacogn.. Publicado em: 09/12/2019
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17. Physical-chemical and chemical characterization of Passiflora cincinnata Mast fruits conducted in vertical shoot positioned trellis and horizontal trellises system
Resumo Passiflora cincinnata Mast., conhecida como maracujá da caatinga ocorre no Semiárido nordestino, Goiás, Minas Gerais e na Bahia. A região de cultivo e os sistemas de manejo das espécies do gênero Passiflora podem interferir na qualidade físico-química dos frutos. Objetivou-se avaliar características físico-química e química dos frutos de
Rev. Bras. Frutic.. Publicado em: 05/12/2019
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18. Oral Administration of Citrus Extracts in Suckling Piglets
Abstract An experiment was conducted to evaluate the performance of suckling piglets subjected to oral administration of citrus extracts (CE). Twenty sows were used with ten sucking piglets on average initial weight of 1.26 kg (± 0.32) for 21 days. The experimental design was a randomized complete block design with two treatments: Negative Control (without
Braz. arch. biol. technol.. Publicado em: 25/11/2019
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19. Cichorium intybus from India: GC-MS Profiling, Phenolic Content and in vitro Antioxidant Capacity of Sequential Soxhlet Extracted Roasted Roots
Abstract Research on the bio-activities and chemical composition of roasted C. intybus roots from India is very little. In present studies GC-MS analysis of volatile components of roasted C. intybus roots, phenolics and flavonoid content estimation and antioxidant potential of roasted C. intybus roots was carried out. Antioxidant potential was also evaluate
Braz. arch. biol. technol.. Publicado em: 25/11/2019
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20. Baicalein restrains proliferation, migration, and invasion of human malignant melanoma cells by down-regulating colon cancer associated transcript-1
Baicalein (BAI) is an acknowledged flavonoids compound, which is regarded as a useful therapeutic pharmaceutical for numerous cancers. However, its involvement in melanoma is largely unknown. This study aimed to examine the anti-melanoma function of BAI and unraveled the regulatory mechanism involved. A375 and SK-MEL-28 were treated with BAI for 24 h. Then,
Braz J Med Biol Res. Publicado em: 25/11/2019
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21. Inhibitory Effects of Some Flavonoids on Thioredoxin Reductase Purified from Chicken Liver
ABSTRACT Thioredoxin reductases (TrxRs) are selenocysteine-containing flavoenzymes that reduce Trxin NADPH-dependent manner. In the view of the direct vital role of TrxR in a wide range of biochemical and physiological processes, methods to inhibit this enzyme are clinically important. TrxR has recently emerged as a new candidate in anticancer drug investiga
Braz. J. Poult. Sci.. Publicado em: 14/11/2019
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22. A New Tetraglycosylated Flavonoid from Leaves of Platycyamus regnellii Benth. Isolated by High-Speed Countercurrent Chromatography
A new tetraglycosylated flavonoid derivative of kaempferol was isolated from the butanol extract of leaves of Platycyamus regnellii (Fabaceae) using high-speed countercurrent chromatography (HSCCC). The butanol extract (960.5 mg) was initially fractionated with the solvent system EtOAC-BuOH-H2O 2:8:10 (v/v/v) (elution in normal phase mode). The fractions con
J. Braz. Chem. Soc.. Publicado em: 24/10/2019
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23. Antiproliferative Effect of Urera baccifera Leaves Against Ovarian Carcinoma Cell Line (OVCAR-3)
Abstract Natural products, especially phytochemicals, have been extensively studies and have exhibited important antiproliferative effects. The American native species Urera baccifera (L.) Gaudich. ex Wedd. (Urticaceae) is widely distributed in Brazil, where it is known as urtiga-vermelha or urtigão. The leaves are popularly used as anti-inflammatory, antir
Braz. arch. biol. technol.. Publicado em: 24/10/2019
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24. Physicochemical Characterization, Antioxidant Potential and Sensory Quality of Wine from Wild Edible Fruits of Flacourtia montana J. Graham
Abstract The objective of the present study was to produce wine from wild edible fruits of Flacourtia montana J. Graham. The various physicochemical attributes including total phenolic content and total flavonoid content were analyzed. Further, the prepared wine was evaluated for the antioxidant potential using four different assays, viz., 2,2'-azino-bis(3-e
Braz. arch. biol. technol.. Publicado em: 24/10/2019