共查询到19条相似文献,搜索用时 156 毫秒
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以具有广西特色的芒果和水牛奶为原料,先进行单因素实验,再利用Box-Behnken中心组合设计,将组合赋权评价方法和响应面分析法结合运用,优化搅拌型芒果果粒水牛酸乳制作工艺。结果表明:搅拌型酸乳的色泽、风味、质构的组合权重分别为0.311,0.373,0.336。其最优制作工艺条件是:砂糖质量分数为8%,果粒添加量10%,复配稳定剂添加量0.09%。依照优化工艺进行验证,采用组合赋权法评价样品,制品质量总分为1.21,误差较小,可见所建立的数学模型能较准确地反映搅拌型芒果果粒酸乳的工艺条件。 相似文献
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以芒果为原料,在单因素试验的基础上,运用Box-Behnken试验设计原理对液态发酵芒果原浆果醋的生产工艺条件进行优化研究。结果表明:芒果酒精发酵阶段,在发酵时间为3d的条件下,酒精发酵优化工艺参数为:料液比1∶2、酵母接种量0.2%、发酵温度34℃、初始糖度18%,在此条件下,芒果酒精发酵酒精度6.62%。醋酸发酵最佳工艺条件为:醋酸菌接种量7.7%、发酵温度32.5℃、装料量30%、发酵时间7d,在此条件下,果醋的酸度为3.99g/dL,且其理化及卫生指标均符合国家相关标准。 相似文献
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以红参粉、牛奶和白砂糖为原料,发酵制成一款新型保健酸乳。在单因素试验的基础上,采用Plackett-Burman试验和响应面试验确定红参酸乳的最佳工艺,并对成品进行理化指标、微生物指标及人参皂苷含量测定。结果表明,最佳工艺为8.1 g红参粉、1.7 g菌粉、18 g白砂糖加入300 mL牛奶,39℃恒温发酵8 h。该工艺所得成品口感好,且与普通酸乳相比,红参酸乳的营养价值得到了强化,增加了人参皂苷的活性成分,其中Rg1+Re含量2.51 mg/g,Rb1含量2.19 mg/g,Rc含量 1.20 mg/g,Rb2含量 0.95 mg/g,Rd 含量 1.52 mg/g。 相似文献
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为实现鱼蛋白胶的创新应用,提高芒果产业附加值,丰富果糕的营养价值,以青芒为原料,研发一款鱼蛋白胶芒果糕。在单因素实验基础上,以感官评分为响应值,通过响应面法结合质构分析对鱼蛋白胶芒果糕的工艺配方进行优化,并对理化及微生物指标进行测定。结果表明,鱼蛋白胶和果胶质量比选择1:1.5为佳,最优配方为:凝胶剂总添加量2.5%、白砂糖添加量40%、柠檬酸添加量0.7%。由此工艺配方制备的鱼蛋白胶芒果糕口感及品质最优,理化指标与微生物指标均合格,且蛋白质含量达到2.19 g/100 g,是一款营养全面的新型果糕。本文为芒果及鱼蛋白胶的开发应用提供新思路和技术参考。 相似文献
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芒果风味酸乳饮料的研制 总被引:1,自引:1,他引:0
研究了芒果发酵乳饮料的工艺条件和主要成分配比.芒果汁过滤后灭酶条件为80~90 ℃下处理1min,可防止果汁褐变而产生不良的色、香、味.制备该饮料的最优条件为:芒果汁添加量30%,奶粉添加量5%,蔗糖添加量8%,接种量5%,在培养温度41℃下发酵时间4.5h,得到的芒果发酵乳饮料组织细腻,色泽良好,口感细腻,酸甜可口,芒果香味与乳香味最协调,香气独特. 相似文献
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The objective of the study was to characterize the fatty acids profiles of goat milk and its fermented products i.e. yogurt and concentrated yogurt. Fresh milk from Peranakan Etawah goats was collected directly from local goat farmers, and processed into stirred-type fresh yogurt. The yogurt was then further processed into concentrated yogurt using Berge method. A total of 26 fatty acids were detected in milk, yogurt and concentrated yogurt, comprised of both saturated and unsaturated fatty acids. The oleic acid, stearic acid and palmitic acid were the major fatty acids found in fresh milk, yogurt and concentrated yogurt. There were changes in the profiles of individual fatty acids during processing of fresh goat milk into yogurt and concentrated yogurt. 相似文献
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The rheological characterization of stirred yogurt with added milk fat, Na caseinate (or micellar casein) and gelatin (4 Bloom strengths), starch or a xanthan gum/LBG 50:50 mixture was carried out. Dynamic and shear values were measured at 8°C and syneresis at 4°C. Consistency (k* and k) and syneresis were more frequently influenced by the composition variables than the power law factors n* and n and the critical strain γc . The k* ranged from 15.8 to 576 Pa sn*, n* from 0.038 to 0.220, γc from 1.6 to 49.0 10-3 , k from 0.37 to 32.47 Pa sn , n from 0.005 to 0.587, and syneresis from 0.0 to 49.2%. 相似文献