Optimization of the green extraction of polyphenols from the edible flower Clitoria ternatea by high-power ultrasound: A comparative study with conventional extraction techniques

被引：26

作者：

Santos, Luan G. ^{[1
]}

Martins, Vilasia G. ^{[1
]}

机构：

[1] Fed Univ Rio Grande, Sch Chem & Food Engn, Lab Food Technol, BR-96203900 Rio Grande, Rio Grande do S, Brazil

来源：

JOURNAL OF APPLIED RESEARCH ON MEDICINAL AND AROMATIC PLANTS | 2023年 / 34卷

关键词：

Response surface methodology; Anthocyanins; Non-conventional edible plant; Natural extract; Bioactive compounds; PHENOLIC-COMPOUNDS;

D O I：

10.1016/j.jarmap.2023.100458

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Optimizing the extraction of phytochemicals from medicinal plants is of great importance for several bio-sectors (i.e., food, cosmetic and pharmaceutical industries). The aim of this study was to optimize the time (10-50 min), temperature (25-65 degrees C) and power (250-650 W) of ultrasound-assisted extraction (UAE) in relation to the content of total phenolic compounds (TPC), flavonoids (FVC) and anthocyanins (TAC) from Clitoria ternatea and compare their bioactivity with extracts obtained by conventional extraction techniques (maceration and reflux). The results showed that all evaluated parameters influenced the polyphenol extraction by UAE and the optimal condition (45 oC, 30 min and 350 W) presented contents of 27.42 mg GAE g(-1), 7.24 mg QE g(-1) and 343.18 mg CGE 100 g(-1) for TPC, FVC and TAC, respectively. The optimized extract by UAE showed high antioxidant and antibacterial activity, being higher than the conventional extraction techniques. These results show the efficiency of using UAE to obtain polyphenol-rich extracts from the edible flower C. ternatea.

引用

页数：7

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