Antioxidant and alpha-glucosidase inhibitory ingredients identified from Jerusalem artichoke flowers

NWIPB OpenIR

	Antioxidant and alpha-glucosidase inhibitory ingredients identified from Jerusalem artichoke flowers
	Wang, Yan-Ming; Zhao, Jian-Qiang; Yang, Jun-Li; Idong, Pema Tsering; Mei, Li-Juan; Tao, Yan-Duo; Shi, Yan-Ping
	2019
发表期刊	NATURAL PRODUCT RESEARCH
卷号	33 期号:4
摘要	Jerusalem artichoke (JA, Helianthus tuberosus L.) has been researched extensively due to its wide range of uses, but there are limited studies on its flowers. In this study, we report the first detailed phytochemical study on JA flowers, which yielded 21 compounds. Compound 4 was identified as a major water-soluble yellow pigment of JA flowers. In addition, the methanol extract of JA flowers and the isolates were evaluated for their antioxidant and alpha-glucosidase inhibitory activities. Among the tested compounds, compound 13 showed the strongest ABTS(+) free radical scavenging activity with SC50 value of 2.30 +/- 0.13 mu g/mL, and compound 6 showed most potent alpha-glucosidase inhibitory activity with inhibition rate of 60.0% +/- 10.3% at a concentration of 250 mu g/mL. Results showed that methanol extract of JA flowers exhibited antioxidant and alpha-glucosidase inhibitory activities which could be attributed to its phenolic ingredients including chlorogenic acid derivatives, flavonoids and phenols. [GRAPHICS] .
关键词	Jerusalem artichoke flowers antioxidant activity alpha-glucosidase inhibitory effect phenolic compounds
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/59854
专题	中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Wang, Yan-Ming,Zhao, Jian-Qiang,Yang, Jun-Li,et al. Antioxidant and alpha-glucosidase inhibitory ingredients identified from Jerusalem artichoke flowers[J]. NATURAL PRODUCT RESEARCH,2019,33(4).
APA	Wang, Yan-Ming.,Zhao, Jian-Qiang.,Yang, Jun-Li.,Idong, Pema Tsering.,Mei, Li-Juan.,...&Shi, Yan-Ping.(2019).Antioxidant and alpha-glucosidase inhibitory ingredients identified from Jerusalem artichoke flowers.NATURAL PRODUCT RESEARCH,33(4).
MLA	Wang, Yan-Ming,et al."Antioxidant and alpha-glucosidase inhibitory ingredients identified from Jerusalem artichoke flowers".NATURAL PRODUCT RESEARCH 33.4(2019).