摘要
研究了超高压条件下,乙醇水溶液对苹果渣中多酚的萃取,探讨了压力、保压时间、溶剂浓度和固液比等因素对萃取工艺及抗氧化活性的影响。结果表明:超高压提取苹果多酚的最佳工艺参数是:压力200MPa,保压时间3min,固液比1∶5,提取溶剂为80%乙醇,各因素影响大小顺序为:压力>溶剂浓度>固液比>时间;超高压苹果多酚萃取物的抗氧化性是常压萃取的2倍。
The extraction of apple polyphenol from apple residue by high hydrostatic pressure extraction （HHPE） with liq-ethanol was studied,the influence on the extraction procedure and antioxidation of the various extraction pressure,the time of holding pressure ,the solvent concentration and the solute/solvent ratios were investigated. The results showed that the optimum procedure parameter of HHPE apple polyphenol were= extraction pressure was 200MPa,time was 3min, solute/solvent ratio was 1 ：5, extracting solvent was 80% ethanol. The sequence of influence of each factor from highest to lowest was shown as follows： pressure 〉 concentration of solvent 〉 solute/ solvent ratio 〉 time. The antioxidation which was used HHPE was 2 times of extracted by normal pressure.
出处
《食品工业科技》
CAS
CSCD
北大核心
2008年第2期191-192,196,共3页
Science and Technology of Food Industry
基金
河南省科技攻关项目(0524270009)
关键词
超高压萃取
苹果多酚
抗氧化性
high hydrostatic pressure extraction
apple polyphenol
antioxidation
