摘要:
以大米、紫米、紫薯、山药为主要原料,研究一种婴幼儿谷物辅助食品——紫色谷薯糊,通过单因素试验及正交试验确定了其主要工艺参数和最佳配方.结果表明,山药先微波后化学护色的最佳工艺参数为:微波输出功率1200 W,时间60 s,护色液配方为维生素C 0.5%,氯化钠1.0%,柠檬酸0.6%,护色时间5 min;紫米、紫薯最佳熟化工艺:紫米常压水煮20 min,紫薯于100℃汽蒸10 min.紫色谷薯糊的主要配方:大米、紫米、山药生料质量比为5:2:2.以原料湿基质量总和100计,紫薯、牛奶、蔗糖、食盐的添加量分别为30%,30%,6%,0.2%,DHA藻油添加量为2.0 mg/g.制成品适合8个月以上的婴幼儿食用.
Abstract:
The best formula and the main process parameters of purple cereal-potato mixed paste (a kind of cereal-based complementary food for infants) using rice,purple rice,purple sweet potato and Chinese yam as materials were studied.By single and orthogonal experiment, the best process parameters of Chinese yam microwave heating and color protecting were obtained:the microwave output power 1 200 W, microwave heating time 60 s; the formula of color protecting was as following:Vc 0.5%, sodium chloride 1.0%, citric acid 0.6%, color protection time 5 min.The method of maturing for purple rice and purple sweet potato was studied by single factor test:purple rice was boiled 20 min in atmospheric pressure, purple sweet potato was steamed 10 min at 100℃.Using orthogonal test to determine the main formula as follow rice:purple rice:yam=5:2:2 (mass ratio), the amount of purple sweet potato, milk, sugar, salt was respectively 30%, 30%, 6%, 0.2%(the sum of the main wet raw material was 100).The amount of DHA algae oil was 2.0 mg/g.The product was suitable for eight-month-or-more infants.
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