Gilliland S E, Speck M L
Department of Food Science, North Carolina State University, Raleigh, North Carolina 27607.
J Food Prot. 1977 Nov;40(11):760-762. doi: 10.4315/0362-028X-40.11.760.
A medium was developed for selectively enumerating bile-resistant lactobacilli by adding 0.15% oxgall to lactobacillus selective agar (BBL). Lactobacilli were not found in many products sold as sources of Lactobacillus acidophilus , whereas others contained widely different numbers of lactobacilli capable of forming colonies on the bile medium. Of seven products from which lactobacilli were isolated, only three contained L. acidophilus . One of these products was from a pharmacy and the other two were from dairy processor(s).
通过向乳酸杆菌选择性琼脂(BBL)中添加0.15%的牛胆汁,开发出一种用于选择性计数耐胆汁乳酸杆菌的培养基。在许多作为嗜酸乳杆菌来源出售的产品中未发现乳酸杆菌,而其他产品中含有数量差异很大的能够在胆汁培养基上形成菌落的乳酸杆菌。在分离出乳酸杆菌的7种产品中,只有3种含有嗜酸乳杆菌。其中一种产品来自药店,另外两种来自乳制品加工商。