蔗髓盐酸水解提取L-阿拉伯糖的响应曲面优化研究  

Optimization of extraction process of L-arabinose from pith sugarcan by response surface methodology

作　　者：魏承厚[1] 李坚斌[1] 韦巧艳[1] 李敏[1] 

机构地区：[1]广西大学轻工与食品工程学院,南宁530004

出　　处：《食品科技》2012年第7期232-236,共5页Food Science and Technology

基　　金：广西科学研究与技术开发项目(桂科能10100025);广西研究生教育创新计划资助项目(GXU11T32569);广西科技攻关项目(桂科攻1114004);广西自然科学基金项目(2011GXNSFA018058;桂科青0832009)

摘　　要：以蔗髓为原材料,按照影响酸催化水解的主要影响因素:水解温度(A)、水解时间(B)、酸浓度(C)、液料比(D)先设计单因素试验,然后以L-阿拉伯糖得率为响应值,采用中心组合设计,通过响应曲面法优化酸催化水解的工艺,模拟得到二次多项数学模型,并确定最佳工艺为:温度115.00℃,时间3.87h,酸浓度1.00%,液料比16:1。在此条件下,L-阿拉伯糖得率可达到4.56%。The extraction technology of L-arabinose from pith sugarcane meal was studied by response surface methodology, on the base of single factor investigation, effects of extraction temperature, extraction time and concentration of hydrochloric acid as well as ratio of water to material. The predictive polynomial quadratic equations model was developed by response surface ananlysis. The optimized extraction conditions arc as follows： extraction temperature 115.00℃, extraction time 3.87 h, concentration of hydrochloric acid 1.00%, ratio of water to material 16：1（w/v）. Under these conditions, the yield of the polysaccharides is up to 4.56%.

关 键 词：蔗髓 L-阿拉伯糖 响应曲面 

分 类 号：TS202.3[轻工技术与工程—食品科学]