摘要
采用浸提法,分别用水、丙酮-水作为提取溶剂从落叶松中提取二氢槲皮素,通过L9(34)正交实验优化最佳提取条件;研究不同油脂中二氢槲皮素的抗氧化效果;比较Vc、BHT、EDTA、柠檬酸对二氢槲皮素的抗氧化协同作用。结果表明,以水作为溶剂的最佳提取条件为:提取温度90℃、料液比1∶12(g/mL)、提取时间120min,以丙酮作为溶剂的最佳提取条件是:丙酮浓度60%(V/V)%、料液比1∶14(g/mL)、提取时间4 h,且以丙酮-水为提取剂的索氏提取量高于以水作为提取剂的提取量;猪油和大豆油的最佳抗氧化剂添加量分别是0.04%(m/m%)和0.06%(m/m%);在四种增效剂中Vc的增效作用最强。
Dihydroquercetin was extracted from larch with water and acetone-water as extracting solvent respectively.The optimum extracting condition was obtained through the orthogonal experiment design L9(34).The antioxidant activity of the dihydro-quercetin in different fats was evaluated.The antioxidant synergy of Vc,BHT,EDTA and citric acid on dihydro quercetin was compared.Results indicated that the optimal conditions of water soaking was as follows: extraction temperature was 90℃,liquid ratio was 1∶12(g/mL),extraction time was 120 min.The optimal conditions of acetone-water soaking was as follows: the concentration of acetone was 60%(V/V)%,liquid ratio was 1∶14(g/mL),extraction time was 4 h.The extraction rate of soxhlet extraction by acetone-water was higher than that by water.The suitable amount of lard and soybean were added as extraction agent were 0.04%(m/m)% and 0.06%(m/m)% respectively.The synergized action of Vc was the best in the four synergistic agent.
出处
《化学研究与应用》
CAS
CSCD
北大核心
2011年第1期107-111,共5页
Chemical Research and Application
基金
黑龙江省自然科学基金(B2009-04)资助项目
关键词
二氢槲皮素
丙酮
索氏提取
抗氧化性
增效作用
dihydroquercetin
acetone
soxhlet extraction
antioxidation
synergism