混纺产品快速定量分析方法

用GB／T2910-1997的方法与快速定量分析方法对各种混纺织产品定量分析的准确性进行了比较,得出了符合GB／T2910-1997要求的快速定量分析方法,从而极大地提高了实验效率。     

Projective mapping: A tool for sensory analysis and consumer research

Studies have indicated that profiling and (dis)similarity scaling yield different perceptual product maps. Conceptually, these two procedures are different. This paper looks at a third and alternative method of producing a two-dimensional, perceptual map utilizing a projective-type method whereby individual assessors themselves are required to place products on the space according to the similarities and differences they perceive. However, visual comparison of the final results provided by each assessor is difficult and, hence, generalized Procrustes analysis is applied to compare each assessor's map for similarity with the others. In this study it was found that the perceptual map derived from projective mapping was as similar to the map derived from profiling as from dissimilarity scaling. However, consistency over repeated trials was greater for projective mapping than for the other two methods. It is suggested that projective mapping could be a potentially useful technique for linking sensory analysis and consumer research data.     

包装的魔力 贴标工艺不可少

<正> 据美国一项调查发现,约有60％顾客在进入商店后,会改变原有的产品选购方案。事实上,在实地购买产品时,面对琳琅满目的商品包装,改变初衷是不足为奇的事。 随着饮料包装标签发展技术不断推陈出新,成本低廉和外观诱人的产品包装是生产商不断追求的目标。B＆HLabeling Systems公司推出的强化型     

The impact of olfactory product expectations on the olfactory product experience

In order to prevent failures when developing a new perfume it is necessary to systematically gather information on the impact that olfactory product expectations generated by means of marketing (i.e. brand name, packaging, container, advertising, distribution) have on the olfactory product experience at an early stage of the innovation process. This information can then be used to simultaneously improve intrinsic and extrinsic product properties. Theories are discussed which describe the influence of olfactory product expectations on the olfactory product experience. The results of a pilot study, based upon the assimilation-contrast model approach are presented.     

Explaining the liking for drinking yoghurt: The role of sensory quality,food choice motives,health concern and product information

The influence of sensory and non-sensory product characteristics and consumer-related factors, such as demographics, food choice motives, and health concern, on liking for four drinking yoghurt flavours was studied using a three-block L-partial least squares regression method. Degrees of liking for yoghurt flavours were evaluated in a consumer test (n = 162) under two conditions: blind and with full product information available. The food choice motives of the members of the consumer panel and data on their concern for food and health were collected using validated questionnaires. Food choice motives were connected to the liking. Subjects who considered natural content, ethical concern, and health as important food choice motives perceived sourer, thicker, and more genuine yoghurt flavour as more pleasant, compared to subjects who considered convenience, price, mood, and familiarity more important, evaluated sweeter and smoother yoghurt as more pleasant.     

The menthol smoker: tobacco industry research on consumer sensory perception of menthol cigarettes and its role in smoking behavior.

The use of menthol in cigarettes is actively promoted by the tobacco industry for its perceived sensory benefits, and smokers of menthol cigarettes commonly differ from nonmenthol smokers in markers of smoking behavior and addiction. In this study, we analyzed internal tobacco industry documents to describe the relationships between sensory perception and the attitudes, preferences, and patterns of cigarette use among menthol smokers. Two unique types of menthol smoker emerged from this analysis: those who cannot tolerate the harshness and irritation associated with smoking nonmenthol cigarettes, and those who seek out the specific menthol flavor and associated physical sensation. Among the first segment of menthol smokers, menthol reduces negative sensory characteristics associated with smoking. This segment of smokers may include a large proportion of occasional smokers or young people, as well as smokers who have "traded down" to a less strong cigarette because of perceived harshness or negative health effects. Some established menthol smokers, on the other hand, appear to be tolerant of and even actively seek stronger sensory attributes, including higher menthol levels. Smokers of these "stronger" menthols have traditionally been disproportionately Black and male. Some beginning or occasional smokers may adopt menthols for their mild properties and to cover up the taste of tobacco, but then develop a stronger desire for the menthol taste over time. Future research measuring smoking behavior and evaluating cessation outcomes of menthol smokers should consider the duration of menthol use and differentiate smokers according to their reasons for using menthols.     

快速感官分析技术在葡萄酒香气感官分析中的应用

采用快速感官分析技术——Napping~?结合Ultra Flash Profiling(UFP)对来自中国4个产区的12款赤霞珠干红葡萄酒进行香气感官评价,采用普氏多维向量分析(procrusts multiple factor,PMFA)、Indscal模型和聚类分析3种多元统计分析对感官数据进行分析。结果表明,不同产区的葡萄酒具有明显的产区特征性并且具有相似的香气特征,其中3种多元统计分析共同认为,晋西产区和烟台产区的赤霞珠葡萄酒具有明显的产区特征性,晋西产区的葡萄酒都具有黑醋栗、红色水果和山楂的香气,烟台产区的葡萄酒则具有显著的烟熏香气特征。来自宁夏产区和新疆产区的葡萄酒之间的差异性在不同分析方法间略有差别,PMFA和聚类分析显示,二者的差异性较小,而Indscal模型则可以较好区分。此外,宁夏产区的葡萄酒具有青椒和甜香料的香气,而来自新疆产区的葡萄酒则具有更显著的烘烤、李子干和花香的香气。研究结果表明,快速感官分析技术可以准确地对葡萄酒进行感官评价。     

亚硝酸盐在肉制品中应用的危害分析及其替代物的研究

对肉制品中添加亚硝酸盐的作用及其危害进行了分析,并对减少肉制品中亚硝酸盐替代物的途径进行了探讨。     

鲍鱼汁产品的研究

文章主要研究鲍鱼汁专用变性淀粉对鲍鱼汁产品稳定性的影响及原料天然鲍鱼提取物,配料酱油、食盐对鲍鱼汁产品风味的影响。试验表明,鲍鱼汁专用变性淀粉生产出来的鲍鱼汁产品具有较高的稳定性,使用一定量的此种变性淀粉能使鲍鱼汁产品具有良好的形态。对不同的原料使用量得出的产品风味进行感官评价,经过正交试验得出风味、色泽较好的鲍鱼汁产品的最佳配方为5%的变性淀粉、2%的鲍鱼提取物、7%的食盐,其它为2.5%的白糖,0.5%的味精,10%的酱油,73%的水。     

一碗拉面卖到1000美元的感叹

高考落榜后．他辗转在河南．山东和安徽等地打工．由于没一技之长,几年过去．身无分文。在仔细分析了之后．他来到合肥一家厨师学校学厨师。与学白案相比．学红案有更多的机会拿高薪．可他等了多次的机会．也没报上红案的名。不得已．他只得选择了白案。这时．有人嘲笑他：”就算学成下来,也只不过是个包子师傅．还会有什么大出息？”他心想,不管怎么说．有门技术总比卖苦力要强．于是坚持跟一位师傅学起了做面。     

Acceptance of calorie-reduced yoghurt: Effects of sensory characteristics and product information

The main objective of this paper was to study acceptance of yoghurt with different levels of two specific sensory attributes, sweetness and richness, when corresponding information about sugar and fat content was given simultaneously with tasting. A conjoint design was applied to examine the effects of intrinsic attributes (sensory) and extrinsic attributes (health information) on acceptability and purchase probability for calorie-reduced vanilla yoghurt. Based on sensory profiling of 12 yoghurts produced according to an experimental design, four yoghurts varying in sweetness and richness were selected. In the conjoint study this sensory variation was combined with information concerning fat content and sugar content. 153 health conscious consumers participated in a blind testing and a conjoint study. Analyses of variance showed that sweetness and information about sugar content had significant effects on liking and purchase probability. The study showed that conjoint methodology was an appropriate tool to reveal effects of extrinsic and intrinsic product attributes.     

感官分析技术在食品工业中的应用

感官分析技术在食品工业中的应用非常广泛，不仅涉及新产品开发的整个领域，而且产品的质量控制也离不开感官分析相关技术。此外应用感官分析技术可以对同类相关产品进行分析比较，从而更好的了解产品间的差异，并为产品的改进提供参考依据。     

冰淇淋感官评定方法及其数据处理的研究

通过评分检验法对冰淇淋的奶粉味、黄油味、冰晶感、脂肪感、粘稠度、滑腻感、坚实度、口融性等感官品质进行了评价,采用unscramber 9.0数据处理软件对各指标的相关性进行检验,得到优化的冰淇淋感官评价指标为:奶粉味、脂肪感、滑腻感、粘稠度、口溶性.同时,冰淇淋样品的TPA质构分析表明:可以部分使用冰淇淋的黏度、弹性、硬度、胶粘性、咀嚼性、内聚性代替冰淇淋感官评定指标中的滑腻感、口融性、粘稠度.感官评定结果的秩和检验与基于Thustonian模型的ROC检验对比表明:ROC检验可以更准确的定量描述样品间的差异,得到更精细的样品差异显著性分组.