Abstract: In this investigation,the qualities of anthocyanins extracts from red raspberry were compared among four kinds of extracting technologies,including solvent,microwave,ultrasonic and pulsed electric field(PEF) assisted extraction.The results indicated that the extraction technologies had significant effects on the qualities of the anthocyanins extracts(P<0.05).For the anthocyanins extracts by PEF assisted extraction,it showed the highest contents of the total mono-anthocyanins [2.504 mg/(100 mL)) ]and polyphenols(equal to 98.533 mg pyrogallic acid mL),the least scavenging ability of ·DPPH(equal to 442.51μg vitamin C/mL),the lowest browning index value,and a more closely to red color.However,the strongest scavenging ability of·DPPH and ferric reduce capacity was observed in the extracts assisted by solvent extraction and microwave,respectively.These results indicated that anthocyanins extracts assistant extracted by PEF was the best.The results of the investigation could be used as a reference to the production of high quality anthocyanin extracts.
2011, Vol. 37 
