木瓜保健果醋的工艺研究

木瓜营养丰富,且具有良好的保健功能,以木瓜为原料,采用液态发酵法,经过酒精发酵和醋酸发酵,研制出风味独特、营养保健的木瓜醋,对开发木瓜保健调味品具有重要意义。该文对木瓜果汁浸提、酒精发酵、醋酸发酵等主要工艺进行了研究。     

乳酸菌发酵保健泡菜的研制

将具有保健功能的红枣、枸杞适量添加到泡菜中,采用乳酸菌纯种发酵,研制营养保健功能更全面,对人体健康起着积极作用的乳酸菌发酵保健泡菜。通过单因素试验和正交试验得乳酸菌发酵保健泡菜的最佳工艺条件为:加糖量3%、加盐量3%、接种量8%、红枣枸杞量12%。在此条件下,制作乳酸菌发酵保健泡菜,并和自然发酵泡菜进行品质对比。实验结果表明:乳酸菌发酵泡菜能有效地降低亚硝酸盐含量,缩短发酵周期,提高泡菜品质。该产品感官评定为优,亚硝酸盐含量为9.1 mg/kg,总酸含量为0.86%(以乳酸计),乳酸菌含量为1.17×108cfu/mL,大肠菌群阴性,未检出致病菌。     

麻山药凝固型酸奶的研制

以麻山药浆、鲜牛乳为原料,进行乳酸菌发酵,制得保健饮品发酵麻山药酸奶。通过正交法确定了发酵工艺参数,筛选出最优组合。实验结果表明：鲜牛奶中加入10%麻山药浆、8%白砂糖和4%发酵剂,41℃条件下发酵4h,制得的发酵奶色香味甚佳,具有一定的营养保健功能。     

柿子发酵果酒的酿造和营养成分分析

本文研究了以柿子为原料，制取柿子果汁后，用活性干酵母发酵酿造干型柿子发酵保健果酒的工艺；测定了柿子发酵保健果酒的营养成分。测定结果表明柿子发酵果酒含有丰富的营养成分，是一种具有极高营养学价值的保健果酒。柿子果酒具有广阔的开发前景。     

铁皮石斛保健黄酒发酵工艺优化及成分变化规律

以铁皮石斛和糯米为主要原料制备半干型铁皮石斛保健黄酒。通过单因素试验和正交试验优化铁皮石斛保健黄酒主发酵条件,对其理化指标进行测定,并研究其发酵过程中理化成分的变化规律。结果表明,铁皮石斛保健黄酒最佳主发酵条件为：铁皮石斛添加量9%,主发酵温度26℃,主发酵时间7 d,接种量0.4%。在此优化发酵条件下,铁皮石斛保健黄酒感官评分为92.1分,其总糖含量为15.52 g/L、总酸含量为8.51 g/L、酒精度为15.02%vol、氨基酸态氮含量为0.60 g/L、多糖含量为12.12 g/L。铁皮石斛保健黄酒主发酵过程中,随发酵时间的推移,总糖含量先增多后减少,在第4天时达到最高值,为16.82 g/L;酒精度呈上升趋势;总酸和氨基酸态氮含量呈先增加后稳定的趋势,发酵第5天时,其含量分别为8.50 g/L、0.58 g/L。     

桑葚保健果醋工艺研究

对桑葚保健果醋饮料的工艺条件进行了研究.桑葚通过酒精发酵、醋酸发酵制成非常有益于健康、市场前景广阔的新型饮料--桑葚保健果醋.     

发酵类保健果酒行业发展存在问题与对策研究

当前发酵类保健果酒由于既具有浓郁的酒香和果香味,又具有一定的健康保健功效,因而深受消费者的青睐。本文阐述了当前发酵类保健果酒行业发展现状,指出复合型发酵果酒是果酒行业的发展趋势。并分析了发酵果酒行业存在专用优质果酒原料缺乏、行业法规管理体系不健全、生产规模小、酿造工艺落后、销售策略乏陈可新等问题,在此基础上提出了培育发酵果酒专用品种、制定国家标准、开发先进的技术工艺和创新营销策略等对策和方法。     

响应面法优化黄芪保健酸奶工艺研究

通过单因素试验法考察黄芪多糖添加量、蔗糖添加量、菌种接种量、发酵时间对感官测评得分的影响范围。再通过采用响应面法优化黄芪保健酸奶发酵工艺。最终确定黄芪保健酸奶的最佳发酵条件为蔗糖添加量10%、黄芪多糖添加量5%,发酵时间为6h,感官测评得分为88分。     

响应面法优化黄芪保健酸奶工艺研究

通过单因素实验法考察黄芪多糖添加量、蔗糖添加量、菌种接种量、发酵时间对感官测评得分的影响范围,再采用响应面法优化黄芪保健酸奶发酵工艺,最终确定黄芪保健酸奶的最佳发酵条件为蔗糖添加量10%,黄芪多糖添加量5%,发酵时间6 h,所得产品感官测评得分为88分。     

柑桔保健果醋的研制

以柑桔全果为主要原料,经发酵制成柑桔保健果醋,对酒精发酵、醋酸液体深层发酵的适宜工艺条件进行了探讨。     

生姜红糖风味发酵乳的制备

以生牛乳、白砂糖、红糖、生姜汁为主要原料,保加利亚乳杆菌（Lactobacillus bulgaricus）为发酵剂,研制生姜红糖风味发酵乳。以酸度和感官评分为评价指标,通过单因素试验、正交试验优化生姜红糖风味发酵乳的工艺条件。结果表明,生姜红糖风味发酵乳的最佳工艺条件为白砂糖5.0%、红糖3.5%、生姜汁2.5%、发酵时间5.0 h。在此优化条件下,生姜红糖风味发酵乳呈红褐色,红糖风味浓郁,生姜味明显且辣感舒适,酸甜适中,组织细腻均匀,感官评分为93分,酸度为74.8 °T,蛋白质含量为2.89%,脂肪含量为3.17%,乳酸菌总数为5.1×108 CFU/g,致病菌未检出。产品质量指标满足国标GB 19302—2010《食品安全国家标准 发酵乳》要求。     

低聚糖类益生元对炼乳品质的影响

目的 为实现炼乳的减糖,研究不同低聚糖类益生元替代蔗糖对炼乳品质的影响。方法 选用低聚果糖、低聚异麦芽糖、低聚木糖、低聚半乳糖四种低聚糖类益生元分别作为蔗糖替代物,研究不同替代比的益生元炼乳体系质构、流变、感官、色泽、晶体大小的变化,得到最佳糖替代益生元及替代比例。结果 综合考虑质构、色泽、晶体大小、喜好度排序感官四种指标表明,低聚果糖炼乳和低聚异麦芽糖炼乳品质较为优良,其中低聚果糖炼乳可接受的替代比为15%以内、低聚异麦芽糖炼乳可接受的替代比为25%以内。进一步通过静态流变学试验表明低聚异麦芽糖是最佳糖替代物质,在炼乳体系中其最佳替代比为15%。结论 糖替代比15%的低聚异麦芽糖炼乳既满足了甜感需求,又实现了减糖的目标,此外益生元的加入赋予了炼乳更多的功能性。该研究可为炼乳产品的减糖开发提供一定的理论依据和技术支持。     

北京市某区市售奶茶糖含量测定及青年人群知信行调查

目的 测定北京某区部分市售奶茶的含糖量,调查该地区消费者奶茶消费量以及对奶茶含糖量的知识、态度、消费行为及其影响因素。 方法 采集市售奶茶样品共40份,经过预处理后采用酸水解-莱因-埃农氏法检测样品中糖含量（以葡萄糖计）。采用调查问卷和偶遇抽样采集数据。 结果 40份样品中,39份样品的含糖量大于0.5g/100mL,30份样品的含糖量大于5g/100mL。调查对象仅有55.5%了解添加糖定义,仅有36.6%了解《中国居民膳食指南（2016）》中对添加糖的摄入建议。青年人群对添加糖相关知识的知晓情况与减糖行为无关（P＞0.05）,能正确评价全糖奶茶含糖量与减糖行为有关（P＜0.05）,了解添加糖相关知识与正确评价全糖奶茶含糖量无关（P＞0.05）。结论 奶茶消费群体通过奶茶摄入添加糖量较多,对添加糖相关知识的知晓率也较低,需要规范奶茶含糖量标注,加强营养宣传教育。     

即溶葛根奶茶的研制

利用乙醇法制备颗粒状冷水可溶性葛根粉,在可溶性葛根粉中添加奶粉、蔗糖,用感官分析评定与正交实验法研制葛根奶茶。着重探讨了乙醇法葛根奶茶里葛根粉的生产工艺参数,确定了葛根奶茶的配方。结果表明NaOH溶液的添加量45ml、乙醇浓度50%、温度40℃时,葛根粉溶解度高达96%。葛根奶茶配方为：奶粉14%、白砂糖12%、红茶粉6%、香兰素0.2%。     

Flow Properties of Commonly Used Food Powders and Their Mixtures

The aim of this study was to get an insight on flow properties of five different food powders and their mixtures frequently used in industrial production of foodstuffs and in households. The studied food powders were flour, maize semolina, sugar, cocoa, and skim milk powder together with their mixtures. Based on cohesion index, samples were categorized as follows: easy flowing—sugar powder, skim milk powder, maize semolina, and mixture 3 (wheat flour and sugar powder); cohesive—flour and mixture 1 (wheat flour and maize semolina); very cohesive—mixture 4 (wheat flour, cocoa, and sugar powder), and extremely cohesive—cocoa powder and mixture 2 (cocoa, sugar, and skim milk powder). Based on powder flow speed dependency test, positive multiple correlations were found between four powder mixtures and their basic components at all speeds. Flour, maize semolina, and mixtures 1 and 3 did not show any susceptibility to caking, while sugar, skim milk powder, cocoa powder, and mixtures 2 and 4 showed an increasing cake height ratio indicating their susceptibility to caking.     

五味子红枣复合乳饮料生产工艺的研究

以红枣、五味子浸提汁为主要原料,添加复原乳、白砂糖及适量稳定剂,经L9（34）正交试验确定其最佳配方。当五味子汁、红枣汁、复原乳、白砂糖的添加量分别为10ml、60ml、120ml、5g时,饮料的感官评分最高。     

几种糖醇类甜味剂在调配型酸乳饮料中的应用研究

对几种糖醇类甜味剂在调配型酸乳饮料中的应用与蔗糖进行了对比研究，发现结晶麦芽糖醇、液体麦芽糖醇均可作为良好的蔗糖替代品生产无糖调配型酸乳饮料。     

Sensory Perception,Nutritional Role,and Challenges of Flavored Milk for Children and Adults

Milk and milk products provide essential nutrients for both adults and children. However, overall milk consumption of both adults and children does not meet the recommendations from Dietary Guidelines for Americans. Flavored milk can increase milk consumption for children and adolescents, but the added sugar content raises concern. Since the removal or reduction of flavored milk decreases milk consumption for children, it is important to understand all aspects of flavored milk in order to increase milk consumption while minimizing sugar intake. This review will address adult and children perception of flavored milk as well as its nutrition, regulations in school meal programs, and challenges. Understanding the sensory perception of both adults and children for flavored milk can help food developers and manufacturers to address attractive attributes while reducing the sugar content to meet the needs of a healthy diet.     

Influence of packaging information on consumer liking of chocolate milk

Chocolate milk varies widely in flavor, color, and viscosity, and liking is influenced by these properties. Additionally, package labels (declared fat content) and brand are some of the extrinsic factors that may influence consumer perception. The objective of this study was to evaluate the effects of packaging labels and brand name on consumer liking and purchase intent of chocolate milk. A consumer acceptance test, conjoint analysis survey, and Kano analysis were conducted. One hundred eight consumers evaluated 7 chocolate milks with and without brand or package information in a 2-d crossover design. A conjoint analysis survey and Kano analysis were conducted after the consumer acceptance test. Results were evaluated by 2-way ANOVA and multivariate analyses. Declared fat content and brand influenced overall liking and purchase intent for chocolate milks to differing degrees. A subsequent conjoint analysis (n = 250) revealed that fat content was a driver of choice for purchasing chocolate milk followed by sugar content and brand. Brand name was less important for purchase intent of chocolate milk than fat or sugar content. Among fat content of chocolate milk, 2 and 1% fat level were most appealing to consumers, and reduced sugar and regular sugar were equally important for purchase intent. Kano analysis confirmed that fat content (whole milk, 1, or 2% fat chocolate milk) was an attractive attribute for consumer satisfaction, more so than brand. Organic labeling did not affect the purchase decision of chocolate milk; however, Kano results revealed that having an organic label on a package positively influenced consumer satisfaction. Findings from this study can help chocolate milk producers as well as food marketers better target their product labels with attributes that drive consumer choice of chocolate milk.     

微波膨化奶香味慈姑脆片配方的研究

以慈姑为原料,采用微波技术对奶香味慈姑片进行膨化试验。考察全脂乳粉、白砂糖、牛奶香精和食盐添加量对微波膨化奶香味慈姑脆片的b*值、脆度、感官评分的影响,并采用正交试验优化调味料配方。结果表明,全脂乳粉添加量55%,白砂糖添加量80%,牛奶香精添加量0.12%,食盐添加量2%为最佳配方。在最佳配方下,微波膨化奶香味慈姑脆片的脆度值1 243.265 g和感官评分为90.9分,此时的慈姑脆片色泽鲜亮均匀、酥脆性好、香甜可口、具有慈姑独特风味。