Results 271 to 280 of about 4,426,970 (333)
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Phytochemistry, 1964
Abstract Cyanidin 3- O -β-(2 G -xylosylrutinoside) and cyanidin and pelargonidin 3- O -β-(2 G -glucosylrutinoside) have been found in flowers and leaves of species of Begonia and Clivia and in the fruits of Prunus, Ribes and Rubus . They co-occur with the related 3-sambubioside, 3-rutinoside and appear to be formed when the appropriate systems
J.B. Harborne, E. Hall
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Abstract Cyanidin 3- O -β-(2 G -xylosylrutinoside) and cyanidin and pelargonidin 3- O -β-(2 G -glucosylrutinoside) have been found in flowers and leaves of species of Begonia and Clivia and in the fruits of Prunus, Ribes and Rubus . They co-occur with the related 3-sambubioside, 3-rutinoside and appear to be formed when the appropriate systems
J.B. Harborne, E. Hall
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Phytochemistry, 1964
Abstract Traces of free tricin have been detected in the leaves of sixteen grasses and two tricin glucosides (one being the 5-monoglucoside) have been isolated from Triticum dicoccum, T. monococcum and T. polonicum . However, the major phenolic constituents of grasses are glycoflavones and eight, present in Avena and Triticum , have been ...
J.B. Harborne, E. Hall
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Abstract Traces of free tricin have been detected in the leaves of sixteen grasses and two tricin glucosides (one being the 5-monoglucoside) have been isolated from Triticum dicoccum, T. monococcum and T. polonicum . However, the major phenolic constituents of grasses are glycoflavones and eight, present in Avena and Triticum , have been ...
J.B. Harborne, E. Hall
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Antioxidants: Structure–activity of plant polyphenolics
2023The excessive accumulation of reactive oxygen species (ROS)/free radicals can lead to abnormal oxidation of biomolecules such as proteins, lipids, fats, carbohydrates and nucleic acids in human organisms. Accordingly, endogenous oxidative stress induces the progressive development of various chronic diseases like rheumatoid arthritis, cancers ...
Aluru, Rammohan +3 more
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Phytochemistry, 1967
Abstract A range of twenty-four known flavonoids have been reductively cleaved with alkali and sodium amalgam under nitrogen and the phenols, phenolic alcohols and phenolic acids produced were separated and identified by chromatography on thin layers of silica gel and of microcrystalline cellulose.
H.M. Hurst, J.B. Harborne
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Abstract A range of twenty-four known flavonoids have been reductively cleaved with alkali and sodium amalgam under nitrogen and the phenols, phenolic alcohols and phenolic acids produced were separated and identified by chromatography on thin layers of silica gel and of microcrystalline cellulose.
H.M. Hurst, J.B. Harborne
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Phytochemistry, 1964
Abstract The rates of hydrolysis of more than a hundred flavonoid glycosides have been measured, using N HCl, β-glucosidase, β-glucuronidase or anthocyanase. The results show that such measurements are useful (α) in distinguishing O- from C-glycosides, (b) in characterizing flavonoids having sugars attached to more than one hydroxyl group, and (c ...
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Abstract The rates of hydrolysis of more than a hundred flavonoid glycosides have been measured, using N HCl, β-glucosidase, β-glucuronidase or anthocyanase. The results show that such measurements are useful (α) in distinguishing O- from C-glycosides, (b) in characterizing flavonoids having sugars attached to more than one hydroxyl group, and (c ...
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Food Research International
Lipid metabolism disorders will trigger various chronic diseases, which posing a serious threat to human health. Therefore, maintaining lipid metabolism balance is a key preventive and therapeutic strategy against various chronic and metabolic diseases ...
Haiying Wei +10 more
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Lipid metabolism disorders will trigger various chronic diseases, which posing a serious threat to human health. Therefore, maintaining lipid metabolism balance is a key preventive and therapeutic strategy against various chronic and metabolic diseases ...
Haiying Wei +10 more
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Antimicrobial Capacity of Plant Polyphenols against Gram-positive Bacteria: a Comprehensive Review.
Current Medicinal Chemistry, 2020BACKGROUND Multi-drug-resistant bacteria such as Methicillin-resistant Staphylococcus aureus (MRSA) disseminate rapidly amongst patients in healthcare facilities and suppose an increasingly important cause of community-associated infections and ...
F. Álvarez-Martínez +4 more
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Phytochemistry, 1979
Abstract Recent progress in the study of plant polyphenol oxidases is critically reviewed. Two main groups are recognized: the catecholoxidases and the laccases. Their purification, subcellular location and protein properties are described. Attention is also given to their activation and induction, their function and evolution.
Alfred M. Mayer, Eitan Harel
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Abstract Recent progress in the study of plant polyphenol oxidases is critically reviewed. Two main groups are recognized: the catecholoxidases and the laccases. Their purification, subcellular location and protein properties are described. Attention is also given to their activation and induction, their function and evolution.
Alfred M. Mayer, Eitan Harel
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Plant polyphenols in gastric cancer: Nature's healing touch.
Seminars in OncologyGlobally, gastric cancer ranks as the fifth most common cancer and is the third most common cause of malignancy-associated mortality. Although surgery is the primary treatment option for gastric cancer, adjuvant chemotherapy improves survival in patients
Chengu Niu +3 more
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Research in advances in the bioactivity of plant polyphenols
International Journal of Food Science & TechnologyPlant polyphenols are the secondary metabolites of plants, with a wide variety of types and diverse structures. At present, many phenolic compounds and their derivatives have been isolated and identified from nature.
Wen-Xuan Ji +3 more
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