3.Coliform group referred to aerobic or facultative anaerobic gram-negative budless bacillus which could ferment lactose and produce acids and CO2.
大肠菌群是指能发酵乳糖、产酸产气、需氧兼性厌氧的革兰氏阴性无芽孢杆菌。
4.Bifidobacteria are thought to help maintain the normal intestinal balance, while improving lactose tolerance; to possess antitumorigenic activity; and to reduce serum cholesterol levels.