摘要
对新银合欢(Leucaena leucocephala)中单宁类物质的提取工艺进行优化研究,选择液料比、提取温度、提取时间、提取剂体积分数等因素分别进行单因素和正交试验。结果表明,在液料比40∶1、提取温度50℃、提取时间60min、丙酮体积分数50%的条件下,单宁提取效果最佳,测得新银合欢单宁平均含量为2.54%。
The optimum conditions, including four main factors： ratio of liquid to material, extraction tern perature, extraction time and extractant concentration, for extracting tannins from leaves and stems of Leucaena Zeucocephala were optimized by using a combined method of single factor analysis and orthogonal experiment design. The results showed that the optimum conditions of each factor in tannin extraction were： ratio of liquid to material 40 ： 1, extraction temperature 50℃, extraction time 40 rain and acetone concentration 50%. The extracting rate of the tannin from the leaves and stems of L. leucocephala was 2. 54%.
出处
《草业科学》
CAS
CSCD
北大核心
2012年第2期301-305,共5页
Pratacultural Science
基金
中央级公益科研院所基本科研业务专项(PZS066)
海南省重点科技项目(090103)
农业科技成果转化资金项目(2010GB23260578)
关键词
新银合欢
单宁
提取
Leucaena leucocephala
tannins
extraction
