Ultrasound-Assisted Extraction of Total Phenolic Compounds fromInula helenium
Keyword(s):
Ultrasound-assisted extraction (UAE) of phenolic compounds fromInula heleniumwas studied. Effects of ethanol concentration, ultrasonic time, solid-liquid ratio, and number of extractions were investigated. An orthogonal array was constructed to optimize UAE process. The optimized extraction conditions were as follows: ethanol concentration, 30%; solid-liquid ratio, 1 : 20; number of extractions, 2 times; extraction time, 30 min. Under the optimal conditions, the yield of total phenolic compounds and chlorogenic acid was6.13±0.58and1.32±0.17 mg/g, respectively. The results showed that high amounts of phenolic compounds can be extracted fromI. heleniumby ultrasound-assisted extraction technology.
2015 ◽
Vol 29
(2)
◽
pp. 231-237
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2017 ◽
Vol 42
(2)
◽
pp. e13447
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