Composition, cytotoxicity and antioxidant activities of polyphenols in the leaves of star anise (Illicium verum Hook. f.)

Ying Wang^a, Tao Liu^a, Ming-Fen Li^a, Yun-Shu Yang^a, Rong Li^a,, Jin Tan^a, Shu-Hua Tang^a, Zi-Tao Jiang^a,b,

ABSTRACT: The polyphenols in the leaves of star anise (Illicium verum Hook. f.) were qualitatively and quantitatively determined by LC-Q-TOF-MS and LC-MS/MS. Twelve flavones and a phenolic acid were identified, mainly comprising vitexin-2"-O-rhamnoside (8780.12 µg/g replica Rolex) and vitexin-2"-O-xylopyranoside (575.46 µg/g), which have high free radical scavenging abilities and strong lipid peroxidation inhibitory activities. In addition, they could also reduce reactive oxygen species in HT-29 cells without cytotoxicity.

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^a	Tianjin Key Laboratory of Food Biotechnology, College of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin 300134 China
^b	School of Food Engineering, Tianjin Tianshi College, Tianjin 301700 China

* Corresponding author, E-mail: ztjiang@yahoo.com, lirong@tjcu.edu.cn

Received 12 Aug 2019, Accepted 21 Oct 2019

Composition, cytotoxicity and antioxidant activities of polyphenols in the leaves of star anise (Illicium verum Hook. f.)

Ying Wanga, Tao Liua, Ming-Fen Lia, Yun-Shu Yanga, Rong Lia,*, Jin Tana, Shu-Hua Tanga, Zi-Tao Jianga,b,*

Ying Wang^a, Tao Liu^a, Ming-Fen Li^a, Yun-Shu Yang^a, Rong Li^a,, Jin Tan^a, Shu-Hua Tang^a, Zi-Tao Jiang^a,b,