双歧杆菌发酵胡萝卜汁饮料的研制

Study on the Carrot Juice Beverage Fermented with Bifidobacterium

采用已耐氧驯化的两歧双歧杆菌与普通乳酸菌共同发酵胡萝卜汁制得发酵饮料.通过正交试验确定的最优发酵条件为:发酵温度39℃,发酵时间9h,胡萝卜汁浓度27%,乳糖添加量1%,双歧杆菌接种量7%,乳酸菌接种量1%.用此条件所得产品中双歧杆菌和乳酸菌活菌数分别达6.5×107cfu/mL和1.7×108cfu/mL.该产品是色、香、味俱佳的天然营养保健制品.

The fermented beverage was prepared through the fermentation of carrot juice by cooperation of common lactic acid bacteria and the oxygen-tolerant strain of bifidobacterium.The optimum fermentation conditions of carrot juice which were obtained through orthogonal test were: fermentation temperature and time being 39℃ and 9h respectively, concentration of carrot juice 27% , additive amount of lactose 1 % , inoculum concentrations of Bifidobacterium bifidum and lactic acid bacteria 7% and 1 % respectively. With these conditions, the numbers of B . bifidum and lactic acid bacteria in product reached to 6.5×107cfu/mL and 1.7×108cfu/mL respectively.This product is a natural health food with good color, flavour and odour.