米糠大豆酸奶发酵条件的优化
Optimization of fermentation condition for yogurt with rice bran and soybean
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摘要: 采用单因素实验和正交实验设计,对米糠大豆酸奶进行了研究,筛选出最佳工艺条件为:米糠与黄豆浆质量比为1/2,稳定剂为1:1海藻酸钠和琼脂,其添加量为米糠酶解液质量的0.13%,发酵温度为45℃,发酵时间为5 h。在此条件下,感官评定值为93.83分,乳酸含量是58.28 μg/mL,蛋白质含量为3.67 g/100 g。该植物性食品含有米糠以及大豆的重要天然营养成分,可以发挥米糠、大豆和酸奶的多种营养保健作用,为米糠大豆的开发利用提供了新的途径,也提高了米糠大豆的经济效用。Abstract: By using the single factor experiment and orthogonal experiment design,the yogurt with rice bran and soybean was studied and its best technology was selected.The ratio of rice bran and soybean milk was 1/2,the stabilizer was 0.13% sodium alginate and 0.13% AGAR of enzymatic hydrolysate of the rice bran,the fermentation temperature was 45℃,the fermentation time of 5 h.In this condition,the point of the sensory evaluation value was 93.83,the content of lactic acid was 58.28 μg/mL, the content of protein was 3.67 g/100 g.The plant-based foods contained important natural nutrients of rice bran and soybean which could develop a variety of nutrition health care function in order to set up a new approach for development and utilization of rice bran and soy bean and improve their economic utilities.