[Extraction of rape seed proanthocyanidin with ultrasonic wave].
Rape seed proanthocyanidin was extracted by ultrasonic technology, and the conditions of extraction were studied. The results showed that the order of the factors which influenced the extraction effects were as follows: ethanol concentration, extracting temperature, ultrasonic extracting time and the ratio of the quantity of raw material to extraction agent (w/v). The optimal conditions were as follows: temperature: 60 degrees C, extracting agent: 60% ethanol aqueous, the ratio of the quantity of raw material to extracting agent: 1 : 20 (w/v), extracting number: 3 times, extracting time: 20 min, respectively. The yield of proanthocyanidins extracted by ultrasonic technology was 84.5% higher than traditional method. Rape Seed was rich in proanthocyanidin.
School of Life Science and Technology, Tongji University, Shanghai 200092, China.
Xiao-Jun
XJ
Zhang
Jian-Ming
JM
Wu
Chun-Tang
CT
Xia
Jian
J
Zhu
Zheng-Rong
ZR
Xie
D029741:Brassica rapa / Q000737:chemistry*; D000431:Ethanol / Q000737:chemistry; D044945:Proanthocyanidins / Q000032:analysis / Q000302:isolation & purification*; D012639:Seeds / Q000737:chemistry*; D012997:Solvents; D013678:Technology, Pharmaceutical / Q000379:methods*; D013696:Temperature; D013997:Time Factors; D014465:Ultrasonics
D044945:Proanthocyanidins; D012997:Solvents; C013221:proanthocyanidin; D000431:Ethanol