薏苡仁枣汁酸奶研制.docVIP

本科毕业设计（论文） 薏苡仁枣汁酸奶的研制 学 院 轻工化工学院 专 业 食品科学与工程 2010年6 月 摘 要 薏苡仁具有很好的抗肿瘤作用与免疫作用，最为人们熟知的是薏仁的消水肿作用。将薏苡仁应用于日常的膳食当中，可以达到调理人的生理机能，提高人体免疫力的作用。 红枣不仅香甜质脆，而且营养丰富。每100g干枣中含碳水化合物72.8g、蛋白质3.3g、脂肪0.4g，另外还含有较丰富的Vc、VA、VB 及P、Ca、Fe等。常食红枣能提高人体免疫力，抗癌、补五脏等中医药价值和保健功效。目前红枣的应用还不是很广，主要作为药材被人们使用。枣汁酸奶中的应用给红枣的开发应用开辟了一条新的途径。 薏苡仁枣汁酸奶的研制是以新鲜的薏苡仁、红枣和全脂乳粉为主要原料。将薏苡仁浸提液、红枣的浸提液与乳粉液混合后，用保加利亚乳杆菌和嗜热链球菌以1：1混合作为发酵剂进行乳酸发酵，研制出具有浓郁枣香和乳香风味的双重营养和保健作用的薏苡仁枣汁酸奶。通过正交实验确定了发酵工艺参数，筛选最优组合。实验结果表明，全脂乳中加入薏苡仁浸提液2%，10%红枣汁，6%白砂糖和4%发酵剂，在42℃条件下发酵5 h，制得的发酵酸奶色香味俱佳，具有一定的营养保健功能。 关键词：薏苡仁，红枣汁，乳酸发酵，酸奶 Abstract Coix seed had a good efficacy of tumorous resistance and immunization,another function which people well known about it is it also can be an anthydropic.If use it in our day-to-day meals,it can make our body more heath and strong. Jujube not only tastes sweet and delicious but also full of nutrition.There are 72.8g carbohydrate,3.3g protein,0.4g fattiness in per 100g dry jujubes,another it contains much Vc、VA、VB and P、Ca、Fe and so on.People who often intake the jujube which can produce these Chinese medical value and heath care efficacy such as improve the immune system,resist cancer,and tonifying five organs.So far,the jujube is not very widely used in our country,many people only regard it as a medicinal materials.Jujune yogurt’s produce provide a new way for jujube’s application development. The coix seed-jujube Yogurt is a new healthy drink made from fresh coix seed,jujube and whole milk power. Extracted juice of semen coicis and jujube and whole miIk were mixed together,lactic acid fermentation with 1：1of actobacillus bnlgaricus and streptococcus thermophiluas mixed starter. the nutritious and healthy yogurt with fragrance of strong Chinese date and frankincense were produced through fermentation. The technological parameter of fermentation was determined by a means of orthogonal experimental design and the prodnets of optimum combination were screened．The result demonstrated that the fermented