کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7767645 | 1500388 | 2018 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Flavonols from Annona coriacea Mart. (Annonaceae)
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Annona is one of the largest genus of Annonaceae. Flavonol derivatives have the major occurrence in the family and in Annona. Glycosides of quercetin, kaempferol and isorhamnetin have been isolated and identified more frequently than any other flavonols. Annona coriacea Mart. is a perennial shrub native to the Brazilian savanna. The species has some acetogenins, alkaloids, diterpenes, polyphenols, flavonoids and volatile compounds already identified. We isolated 11 flavonols from A. coriacea leaves: 1 - quercetin-3-O-β-(6â³-O-β-glucosyl)-glucoside (quercetin-3-O-gentiobioside), 2 - quercetin-3-O-β-(6â³-O-α-rhamnosyl)-galactoside (quercetin-3-O-robinobioside), 3 - quercetin-3-O-β-(6â³-O-α-rhamnosyl)-glucoside (rutin), 4 - quercetin-3-O-β-galactoside (hyperin), 5- quercetin-3-O-β-glucoside (isoquercitrin), 6 - kaempferol-3-O-β-(6â³-O-α-rhamnosyl)-galactoside (biorobin), 7 - kaempferol-3-O-β-(6â³-O-α-rhamnosyl)-glucoside (nicotiflorin), 8 - isorhamnetin-3-O-β-(6â³-O-α-rhamnosyl)-galactoside (keioside), 9 - isorhamnetin-3-O-β-(6â³-O-α-rhamnosyl)-glucoside (narcissin), 10 - isorhamnetin-3-O-β-galactoside (cacticin), 11 - isorhamnetin-3-O-β-glucoside. Quercetin derivatives were predominant, followed by isorhamnetin and kaempferol ones. All flavonols, except 3, have never been described in A. coriacea. Compound 10 was isolated only once in another species of the family. Compounds 8 and 9 are described for the first time in Annonaceae. The occurrence of flavonol derivatives as the main flavonoids could confirm that the family represents a basal evolutionary state.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochemical Systematics and Ecology - Volume 78, June 2018, Pages 77-80
Journal: Biochemical Systematics and Ecology - Volume 78, June 2018, Pages 77-80
نویسندگان
Paula Novaes, Marcelo J. Pena Ferreira, Deborah Yara Alves Cursino dos Santos,