摘要
目的:研究柑橘皮果胶提取的最优工艺。方法:以干燥的柑橘皮为试验原料,采用纤维素酶溶液提取果胶;以果胶提取率为考察指标,在单因素试验的基础上,进行L4(23)正交试验设计,研究了纤维素酶的浓度、浸提时间、浸提温度以及溶液pH值对柑橘皮果胶提取率的影响。结果:纤维素酶溶液的浓度是影响柑橘皮果胶提取率的最主要因素;纤维素酶溶液提取柑橘皮果胶的最佳工艺条件为:纤维素酶溶液浓度为0.5%,浸提时间为45min,浸提温度为45℃,溶液pH值为5.6,在此条件下,柑橘皮果胶的提取率可达到36.56%。结论:该提取工艺的果胶提取率高,可用于柑橘皮果胶的提取。
Objective： To study the optimal extraction technology of pectin from orange peel.Methods： The research used dried orange peel as raw material to extract pectin by cellulase.Effects of concentration of cellulase solution,extracting time,extracting temperature and pH value of solution were investigated through single factor.On the basis of single factor tests,and orthogonal L9（34） experiment,we found that the concentration of cellulase solution was the main factors on extraction rate.The optimized extraction technology was： the concentration of cellulose solution 0.5%,the extracting time 45 minutes,the extracting temperature 45℃,pH value 5.6.The extracting rate of pectin was 36.56%.Conclusion： The optimized extraction technology has a higher yield and can be used in pectin extraction from orange peel.
出处
《中国食品添加剂》
CAS
北大核心
2011年第6期85-89,共5页
China Food Additives
基金
湖北省重点学科建设专项(鄂学位[2010]1号0903)资助
关键词
柑橘皮
纤维素酶
果胶
提取率
Orange peel
Cellulase
Pectin
Extracting rate
