共查询到19条相似文献,搜索用时 109 毫秒
1.
酸性豆乳饮料稳定性的研究 总被引:10,自引:0,他引:10
本文叙述一种酸性豆乳饮料的制作方法,由于该饮料不确定而引起脂肪上浮和蛋白质沉淀,使产品外观和口感欠佳,针对此问题,对不同HLB值的混合乳化剂和稳定剂的效果进行实验,结果表明:当混合乳化剂量为0.1%(其中单甘酯和蔗糖酯1:1)CMC和PGA各为0.2%时,大大增加饮料的稳定效果,达到预期目的。 相似文献
2.
果味酸豆乳饮料的研制 总被引:3,自引:0,他引:3
本文介绍了酸豆乳饮料的生产工艺。由于该饮料性质不稳定易产生脂肪上浮和蛋白质沉淀等现象,使产品外观和口感欠佳,针对这些问题,本实验使用不同HLB值的混合乳化剂与不同的稳定剂配合使用,进行工艺探讨,得出最优生产工艺。 相似文献
3.
阐述了大豆经浸泡、磨制、分离、脱腥、灭酶、均质、灭菌等工艺处理后,成为一种营养丰富,易于人们接受的大豆系列饮品,为人们提供了大豆的一种科学方便的食用方法。 相似文献
4.
5.
6.
7.
本文探讨了利用以蛋白酶为主的复合酶生产豆乳饮料的工艺,对酶的用量、作用时间、底物浓度之间的关系进行了研究,确定了最佳生产工艺参数。指出采用酶法改良豆乳饮料品质是提高产品档次、增加竞争力的有效手段之一。 相似文献
8.
9.
豆乳是一种含有丰富的蛋白质和脂肪酸的饮料,利用山楂榨汁,加入到豆乳中,可强化豆乳中的维生素含量,制成强化豆乳饮料。 相似文献
10.
11.
12.
13.
以花生和红薯为主要原料制作花生红薯保健饮料,研究了花生红薯比例、糖用量、乳化稳定剂3个因素对饮料品质的影响,确定了花生红薯饮料的最佳配方为,花生与红薯的比例1.5∶1,白砂糖用量6%,复配乳化稳定剂为,羧甲基纤维素钠1%,海藻酸钠1%,蔗糖酯SE1170用量0.8%。 相似文献
14.
15.
16.
ABSTRACT: :
Soymilk (SM), a potential culture medium for applying conductimetric techniques to evaluate the behavior of probiotic lactobacilli and bifidobacteria was examined. Media LAPTg, LM, and SM was standardized for the growth of Lactobacillus fermentum and Bifidobacterium longum. A dilution of 1/100 for L. fermentum and 1/1 for B. longum were considered optimal to obtain a detection time (DT) between 5 and 10 min. The relationship between the initial number of cells and the DT was linear throughout the incubation period considered (40 h). The effect of temperature (30, 37, and 42 °C) on the metabolic activity of the cells was also determined after 40 h of fermentation. The higher metabolic changes were observed at 42 °C with conductance values from 600 to 800 μS and DT of 5-7 min. Results obtained were confirmed by viable counts. 相似文献
Soymilk (SM), a potential culture medium for applying conductimetric techniques to evaluate the behavior of probiotic lactobacilli and bifidobacteria was examined. Media LAPTg, LM, and SM was standardized for the growth of Lactobacillus fermentum and Bifidobacterium longum. A dilution of 1/100 for L. fermentum and 1/1 for B. longum were considered optimal to obtain a detection time (DT) between 5 and 10 min. The relationship between the initial number of cells and the DT was linear throughout the incubation period considered (40 h). The effect of temperature (30, 37, and 42 °C) on the metabolic activity of the cells was also determined after 40 h of fermentation. The higher metabolic changes were observed at 42 °C with conductance values from 600 to 800 μS and DT of 5-7 min. Results obtained were confirmed by viable counts. 相似文献
17.
18.
为了研究豆腐的凝固工序,实现豆腐的规格化和标准化生产,本研究对豆浆在凝固过程中的动态流变特性进行了研究,并进行了动力学分析。在凝固温度分别为75℃、80℃、85℃时进行动态时间扫描,得出豆浆的凝固过程由两段一级反应组成且符合连续一级反应模型;第一段反应速率远远大于第二段反应速率;根据弹性模量和黏性模量计算所得活化能分别为19.19×101 k J/mol和8.67×101 k J/mol;当温度小于70℃时,豆浆不能形成豆腐凝胶;当温度在75℃时,弹性模量G'和黏性模量G"相交,豆浆的凝胶温度为75℃。通过动态温度扫描得出豆浆的凝固过程可分为三个阶段:诱导阶段(65~70℃),弹性模量G'和黏性模量G"缓慢增大,豆浆体系中有絮状沉淀生成;加速阶段(70~92℃),弹性模量G'和黏性模量G"急剧增大;稳定阶段(温度大于92℃),弹性模量G'和黏性模量G"趋于稳定,凝胶反应结束,豆腐凝胶形成。 相似文献