“冷冻酸奶”及其制造

前言冷冻酸奶（Frozenyoghurt）是欧美各国十分流行的冷冻饮品，它将酸奶的香味与冰淇淋的冰凉感觉有机地结合，物理形态上类似冰淇淋、带有冰淇淋独特滋味、质地，是有益于健康的一种冷冻甜食。在酸奶消费的带动下，冷冻酸奶的消费亦呈上升趋势。“冷冻酸奶”与冰淇然中的新品──—酸奶冰淇淋都要通过盛冻机打膨胀率，外观形态、保存销售条件相似，许多人将两者混为一谈。严格地讲，无论从配方还是工艺，都有明显的不同。在酸奶冰淇淋中，突出酸奶味道，酸奶作为一种配料加入，主要是为了呈现风味，可以说适当调节混合料的酸度再加入适当…     

酸奶冰淇淋

酸奶冰淇淋张仲华（上海冷冻食品协会）多年来，由于酸奶冰淇淋在美国市场的巨大成功而引起欧洲冰淇淋制造商的特别关注。１９８３～１９８８年期间，美国的酸奶冰淇淋销售几乎增加８倍，进入９０年代后，酸奶冰淇淋更是不断推出新品。如汉恩－大兹公司生产的爱克斯特冰淇...     

3 种乳制品对低免疫力模型斑马鱼免疫功能的影响

目的：研究3 种乳制品对长春瑞滨（一种半合成的长春花生物碱）诱导的低免疫力斑马鱼免疫功能的调节作用。方法：分别给斑马鱼静脉注射0.2 mg/mL酒石酸长春瑞滨注射液诱导低免疫力模型,按照随机法将斑马鱼随机分为正常对照组、模型对照组、低温酸奶组（8 333 μg/mL）、常温纯牛奶组（70.4 μL/mL）、冷冻酸奶冰淇淋组（33 333 μg/mL）,每组30 尾。利用荧光显微镜观察并分析3 种乳制品对低免疫力斑马鱼的巨噬细胞数量、巨噬细胞吞噬功能,以及T淋巴细胞数量的影响。结果：与正常对照组比较,模型对照组巨噬细胞数量显著降低、巨噬细胞吞噬功能减弱、T细胞数量高度显著降低（P＜0.001）。与模型对照组比较,给予低温酸奶、常温纯牛奶和冷冻酸奶冰淇淋后巨噬细胞和T淋巴细胞的数量均显著增加（P＜0.05、P＜0.01和P＜0.001）;常温纯牛奶和冷冻酸奶冰淇淋均能显著增强巨噬细胞吞噬能力（P＜0.05）,低温酸奶对巨噬细胞吞噬功能的无显著促进作用。与低温酸奶比较,常温纯牛奶巨噬细胞数量显著提高（P＜0.05）,但T细胞数量和巨噬细胞吞噬功能无显著性差异（P＞0.05）;冷冻酸奶冰淇淋组巨噬细胞数量、T淋巴细胞数量、巨噬细胞吞噬功能均无显著性差异（P＞0.05）。结论：低温酸奶、常温纯牛奶和冷冻酸奶冰淇淋可以通过增加巨噬细胞、T淋巴细胞的数量,改善巨噬细胞的吞噬能力,从而提高长春瑞滨诱发的低免疫力斑马鱼的免疫功能。     

酸奶冰淇淋将会成为当代冰淇淋的新的主流

酸奶冰淇淋是以酸奶制作的营养健康的冷冻饮品,它综合了酸奶和冰淇淋的双重特点。论述了冷冻酸奶的生产配料、制作与要求及其营养价值,以适应冷饮市场上升的趋势与活力,满足人们的消费需求。指明未来具有广大的消费市场。     

酸奶冰淇淋生产工艺

酸奶冰淇淋生产工艺张润利（开封市水产公司，开封４７５０００）０前言目前市场上销售的酸奶冰淇淋大多是在冰淇淋料中添加乳酸及酸奶香精调配制成。真正的酸奶冰淇淋应是将牛乳用乳酸菌发酵后，与加入糖类、脂类、稳定剂、增稠剂等并经杀菌、均质、冷却后的半成品混合，...     

冷冻酸奶生产工艺的研制

冷冻酸奶又称酸奶冰淇淋,是当今社会发展最快的一种具有保健作用的冷饮品。论述了冷冻酸奶的生产工艺及两种冷冻酸奶的生产配方与要求,以适应冷饮市场上升的趋势与活力,满足人们的消费需求。     

畅销国际市场新型酸奶

集营养、保健与美容于一体的酸奶食品，正受到各同人民的青睐。日前，冈际市场颇为畅销的新型酸奶有如f品种：碳酸奶美国芝加哥乳品工业协会在脱脂奶中注入二氧化碳。这种碳酸奶的最大优点是。J使人从中获得牛奶的全部营养价值。冷冻酸奶把果酱和增香辅料混入酸奶后，经过冷凝机冷冻而成，它既有酸奶的特有的风味，又不大冰淇淋匀滑绵口之质感，是一种高蛋白低热量的酸奶食品，现在欧美的消费量日增。苏打酸奶是最近美同南方食品中心，用苏打（碳酸盐）、干奶粉、水和杏N研制的一种新型酸奶，具有软饮料的清冰感，已营养好，富含钙、蛋白质…     

一种低脂酸奶冰淇淋的配方及生产工艺

研究了一种以冰淇淋基料，糖基料及酸奶基料按比例混合后制作的冷冻饮品。并详细介绍了其配方及生产工艺。该产品的特点为低脂，带活性乳酸菌，是一种深受消费者喜爱的健康型冷冻饮品。     

冰淇淋冷冻中的几个特殊问题

冰淇淋冷冻中的几个特殊问题贾日生编译（浙江农业大学）冰淇淋是在冷冻状态下食用的，因此冰晶体的大小影响其组织结构及口感。当冰晶体小于２５μｍ时，在其它混合料成分存在下不易被察觉且口感滑润，而大的冰晶体使冰淇淋产生粗糙的组织结构。因此在冰淇淋冷冻过程中控...     

酸奶冰淇淋研制

酸奶冰淇淋研制王凤芳，蔡云升（上海轻工业高等专科学校，上海，２００４３３）随着时代的发展，新的食品品种日渐脱颖而出。人们对食品的需求，不仅要求味道鲜美，而且希望具有一定的营养价值和保健功能。酸奶冰淇淋适应了冷饮市场的这一新的需求。酸奶是一种安全的保健...     

Preparation and properties of ice cream type frozen yogurt

Changes in sensory ratings and chemical properties of ice cream type frozen yogurt (fat content >8.0% with varying pH values) were investigated during storage for 6 months at –35°C. No appreciable change was observed in the structure, acidity and pH values of the products during storage. In addition, there was no increase in thiobarbituric acid values of the products during storage. Viable lactic acid bacteria decreased in number with increasing storage period. Different sensory ratings were obtained for assessors who were familiar with yogurt and for assessors who were not. The product having a pH value of 5.5 was the most preferred ice cream type frozen yogurt in the products examined .     

Effects of Gamma Irradiation at -78°C on Microbial Populations in Dairy Products

The effect of low temperature (-78°C) gamma irradiation was investigated on microbial populations in selected dairy products to determine the irradiation dosage needed to produce commercially sterile dairy products for immunosuppressed patients. 40 kGy irradiation was sufficient to sterilize ice cream and frozen yogurt, but not mozzarella or Cheddar cheeses. Up to 8 wk continued incubation of the 40 kGy irradiated products at 7°C or 35°C resulted in no resuscitative growth in ice cream or yogurt, but identifiable growth in the cheeses. The 12D for B. cereus preinoculated into cheese and ice cream was 43-50 kGy.     

The effects of varying sugar content and fruit concentration on the physical properties of vanilla and fruit ice-cream-type frozen yogurts

In this study, the physical properties of samples of ice cream produced from yogurt with varying levels of sugar (18, 20 or 22%) and fruit (strawberry) concentration (15, 20 or 25%) were investigated. The results of the physical analysis indicate that as the amount of sugar and fruit increases, there is an increase in the first dripping time period, viscosity values and the overrun. However, complete melting times decreased in parallel with the increase in sugar content and fruit concentration. It was observed that an increase in the amount of sugar in vanilla frozen yogurt softened the structure. In strawberry ice-cream-type frozen yogurt, the structure hardened in parallel with the increase in fruit concentration. In addition, the results show that frozen yogurts with high sugar (V3) and fruit (St3) concentrations are the type most preferred by the panellists. The results of the sensory analysis suggest that frozen yogurt can be an alternative to other dairy products such as yogurt and ice cream.     

Characteristics of lactose-free frozen yogurt with κ-carrageenan and corn starch as stabilizers

Frozen yogurt is a type of dairy product that is considered to be a more healthful alternative to conventional ice cream due to its lower fat content and the presence of viable lactic acid bacteria. Lactose-free products are a growing trend in the dairy industry, and lactose-free yogurts and ice creams can both be found on the market. However, lactose-free frozen yogurt has not yet reached the market. In this study, we aimed to investigate the effect of adding κ-carrageenan (0.05, 0.1, and 0.15%) and corn starch (1, 2, and 3%) on acidity, texture, viscosity, overrun, melting properties, color attributes, and sensory characteristics of lactose-free frozen yogurts. Lactose was reduced by enzymatic hydrolysis during the fermentation process. The effectiveness of the hydrolysis was measured by HPLC, and lactose was reduced to 0.05% after 80 min of incubation with the enzyme. The addition of stabilizers did not change overrun and melting properties of frozen yogurt, but it did affect pH, titratable acidity, and color parameters. The product with 0.15% κ-carrageenan had the highest hardness and stickiness values. Moreover, κ-carrageenan had a positive effect on sensory attractiveness of lactose-free frozen yogurt, and it reduced the coarse texture in comparison with the control without stabilizers. A lactose-free frozen yogurt with good quality and nutritional characteristics was produced, particularly with the use of κ-carrageenan as stabilizer.     

Folate Content of Dairy Products Measured by Microbiological Assay with Trienzyme Treatment

ABSTRACT: Folate contents of a total of 210 dairy products, including milk, yogurt, ice cream, sherbet, frozen yogurt, pudding, sour cream and cheese, were measured by Lactobacillus casei microbiological assay after the extraction using trienzyme treatment. These values are compared with those using traditional folate conjugase treatment alone and those in previously published food tables. Folate contents by the method using trienzyme treatment were uniformly higher than those using the traditional method and the published contents. To our knowledge, the values published here are the largest collection of folate content of dairy products and can be used to accurately assess dietary folate intake in the general population.     

The effect of inulin on the physicochemical properties and sensory attributes of low-fat ice cream

The aim of this study was to investigate the feasibility of replacing the ice cream fat with inulin to produce a low-fat ice cream with prebiotic properties. For this purpose, inulin (2, 3 and 4%, w/w) was added to the low-fat ice cream and the physicochemical and sensory properties of the resultant ice creams were compared with those of control ice cream (containing 10% fat) and the inulin-free low-fat ice cream. The composition, pH and acidity of the ice cream mixes were measured and the melting rate, colour and texture of the frozen ice cream samples were examined. The results indicated that the low-fat ice creams had a significantly lower melting rate in comparison with the control. Inulin addition caused the adhesiveness and hardness of the low-fat ice creams to decrease significantly compared with inulin-free low-fat ice cream.     

发酵型巴旦杏、花生复合酸乳冰淇淋的研制

本文通过正交试验确定出以巴旦杏、花生和鲜牛奶为原料生产酸乳,并以该酸乳为主要原料的冰淇淋产品配方;研制出一种具有一定营养和保健功能,且风味独特的发酵型活性乳酸菌冰淇淋制品,其活性乳酸菌达到3.0×106CFU/g。