作　　者： ; ; ; ;

机构地区： 华南理工大学轻工与食品学院

出　　处： 《食品科学》 2012年第3期101-104,共4页

摘　　要： 以肠道益生菌(保加利亚乳杆菌、嗜热链球菌)和肠道腐败菌(金黄色葡萄球菌、沙门氏菌)为研究对象,通过用MTT法来考察甲壳低聚糖对肠道微生物生长的影响。结果表明:在一定质量浓度(0.1～0.8g/100mL)范围内,甲壳低聚糖对肠道益生菌保加利亚乳杆菌、嗜热链球菌均有明显的增殖作用;随着菌体培养基糖(甲壳低聚糖)质量浓度的增大,甲壳低聚糖对肠道腐败菌金黄色葡萄球菌、沙门氏菌抑制效果增强;同时分子质量1kD的甲壳低聚糖比分子质量3kD的对微生物生长的影响更为显著。 The effect of oligo-chitosan on the growth of intestinal microorganisms was studied using MTT assays.The results indicated that oligo-chitosan could obviously accelerate the proliferation of Lactobecillus bulgaricus and Streptococcu themophilus at the concentration range of 0.1-0.8 g/100 mL,while the antibacterial activity of oligo-chitosan against Staphylococcus aureus and Salmonella was strengthened with increasing oligo-chitosan concentration.The oligo-chitosan with molecular weight of 1 kD revealed more obvious impact on the growth of intestinal microorganisms than the oligo-chitosan with molecular weight of 3 kD.

关 键 词： 法 甲壳低聚糖 肠道微生物

领　　域： [轻工技术与工程] [轻工技术与工程]