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  • 1995-1999  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Bradford : Emerald
    British food journal 101 (1999), S. 301-317 
    ISSN: 0007-070X
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The formulation and marketing of new food products are very complex and there are many interacting influences on consumer acceptance, e.g. the person, the food product and the environment. Market analysis and sensory analysis were used to determine consumer preferences for Cheddar-type cheeses. Consumers' attitudes, perceptions and purchase behaviour were investigated by means of a structured questionnaire. Eight Cheddar-type cheeses were objectively assessed by a trained panel using descriptive sensory profiling, and, in parallel, were hedonically rated by 100 "naïve" consumers. Preference mapping was used to illustrate the subjective sensory data before the "naïve" consumers were segmented into homogeneous groups using hierarchical cluster analysis. Five focus groups, representing different socio-economic categories, investigated in-depth influences on preferences and purchase behaviour. Cheddar-type cheese was the most frequently purchased and preferred cheese, and taste was the most important attribute influencing the purchase decision. Consumers preferred a premium cheese described as "creamy" and "mouthcoating" and least liked a reduced-fat cheese described as "rancid" and "rubbery". The focus groups helped explain issues that arose in both the questionnaire and sensory analysis. This study showed that a combination of market and sensory analysis gave a more valuable explanation of consumer acceptance of Cheddar-type cheese than either method could on its own. However, relationships were determined by observation rather than mathematically and therefore this integration must be further developed in order to build a predictive model for this product.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1745-459X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Comparisons of volatile compounds released during consumption by different assessors with individual differences in the assessors’chewing patterns, saliva production rates and ultimately their expressions of perceived flavor have received little research attention to date, although such comparisons are fundamental to the understanding of flavor. To address this, eight untrained assessors were chosen and each consumed six Cheddar cheeses during Buccal Headspace Analysis of the volatile compounds released, while in parallel measures of each assessor's mastication behavior using Electromyography, their stimulated saliva production during consumption and their sensory perceptions of the cheeses flavor during Free Choice Profiling were determined. Relationships between the volatile compounds released and the sensory and physiological measures were investigated using Principal Components Analysis, Generalised Procrustes Analysis and Partial Least Squares regression. It was found that although there were differences between assessors’mastication behavior and saliva production rates, the assessors’individual volatile profiles obtained by Buccal Headspace Analysis were similar for each cheese examined. Also, Partial Least Squares was successful in predicting the most important flavor differences between cheeses from the volatile compounds released during their consumption by different assessors.
    Type of Medium: Electronic Resource
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