【摘要】 对酸奶尤其益生菌酸奶加工常用的嗜热链球菌、保加利亚乳杆菌、嗜酸乳杆菌和双歧杆菌4支菌种,在人工模拟胃肠消化条件下进行了耐受性研究。结果表明,嗜热链球菌和保加利亚乳杆菌在经过胃肠消化后活菌数几乎消失殆尽,嗜酸乳杆菌和双歧杆菌耐受消化的能力较强。本研究初步证实了嗜酸乳杆菌和双歧杆菌的益生菌功效。更多还原

【Abstract】 Survival in simulated digestive juice of 4 cultures are studied in this paper.Str.T (Streptococcus salivarius subsp.Thermophilus) and Lac.B (Lactobacillus delbrueckii subsp.Bulgaricus) are necessary in yoghurt,but they hardly survive after simulated gastric juice at pH2.0 for 2 hours,Lac.A (Lactobacillus acidophilus ) and Bf.L (Bifidobacterium longum ) survive poorly in simulated gastric juice but recover in simulated small intestinal juice.It is proved by first step that Lac.A and Bf.L are probiotics by this paper.更多还原