Czech J. Food Sci., 2017, 35(1):89-94 | DOI: 10.17221/82/2016-CJFS

Ultrasonic microwave-assisted extraction of polyphenols, flavonoids, triterpenoids, and vitamin C from Clinacanthus nutansFood Technology and Economy, Engineering and Physical Properties

Qun Yu1, Chuan Li1*, Zhenhua Duan1, 2*, Bing Liu1, Weiwen Duan2, Feifei Shang2
1 College of Food Science, Hainan University, Haikou, P.R. China
2 Institue of Food Research, Hezhou University, Hezhou, P.R. China

Polyphenols, flavonoids, triterpenoids, and vitamin C from Clinacanthus nutans were extracted by an ultrasonic microwave-assisted method. The optimal extraction conditions were established in distilled water, solid-liquid ratio 1 : 55 g/ml, irradiation power 90 W, and extraction cycle with 75 seconds. Results revealed that the solid-liquid ratio exerted a significant effect on polyphenols, whereas the irradiation power played a key role in the extraction of flavonoids, triterpenoids, and vitamin C. Under these conditions the extraction yield of each component was: polyphenols 8.893, flavonoids 25 936, triterpenoids 16 789, and vitamin C 0.166 mg/g. These results showed that the ultrasonic microwave-assisted extraction was an efficient technology to extract bioactive substances from Clinacanthus nutans and Clinacanthus nutans could potentially be a source of natural antioxidants.

Keywords: herbaceous plant; bioactive substance; ultrasonic microwave-assisted extraction; yield

Published: February 28, 2017  Show citation

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Yu Q, Li C, Duan Z, Liu B, Duan W, Shang F. Ultrasonic microwave-assisted extraction of polyphenols, flavonoids, triterpenoids, and vitamin C from Clinacanthus nutans. Czech J. Food Sci. 2017;35(1):89-94. doi: 10.17221/82/2016-CJFS.
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