摘要
研究了银杏叶中黄酮的酶法提取工艺,银杏叶原料经纤维素酶预处理后浸提,总黄酮得率显著提高,对叶得率可达到2.01%。其酶解过程的最优参数为:料液中酶的质量浓度为0.125g/L,酶与底物配比为1∶1200,酶解温度45℃,自然pH值,酶解时间2h。
An extraction technology of flavonoids from Ginkgo biloba leaves was studied in this paper.When the crude leaves were pretreated with the cellulase enzyme before extraction process,the extraction yield of total flavonoids was up to 2.01%.The extraction conditions were also determined as following:concentration of enzyme in the liquor 0.125 (g/L),mixture ratio between enzyme and substrate 1∶1200,treating time 2 h,45 ℃,and natural pH value.
出处
《林产化工通讯》
2004年第1期14-16,共3页
Journal of Chemical Industry of Forest Products
