高性能交联羧甲基淀粉的研究  

Study on high performance crosslinked carboxymethyl starch

作　　者：刘大胜[1] 

机构地区：[1]广西大学糖业工程技术研究中心,南宁530004

出　　处：《食品科技》2003年第9期22-24,共3页Food Science and Technology

摘　　要：选用环氧氯丙烷作为交联剂制备了交联羧甲基复合变性淀粉。研究表明, 交联剂用量在0.12%,物料比为淀粉∶氯乙酸∶氢氧化钠为1.0∶0.7∶2.0(mol)时,可得到取代度在0.6左右性能优良的交联羧甲基淀粉,其粘度、粘度稳定性、热稳定性、耐酸碱性和抗剪切性都非常好。A cross-linked carboxymethyl starch(CCMS) was synthesized by using epichlorohydrin as crosslinking agent, while the epichlorohydrin addition is 0.12% of the starch weight and the raw materials ratio is starch 1.0∶monochloroacetic acid 0.7∶sodium hydroxide 2.0(mol). The degree of substitution is about 0.6. The viscosity of the CCMS reaches 3000mPa·s in 2% water solution at 25℃ and keeps constantly after being exposed in atmosphere at room temperature for 10 days or heated in boiling water for 60min. CCMS exhibits high stability against acid, alkali and shearing. It can be used as the substitutes of CMC.

关 键 词：交联 羧甲基淀粉 性能 

分 类 号：TS201.2[轻工技术与工程—食品科学]