In the product design and development process, quality function deployment (QFD)
provides a comprehensive, systematic approach to ensure new products meet or exceed
customers’ expectations. QFD is a powerful tool because it can reduce time to market, improve
quality and increase customer satisfaction. A survey of 400 Thai respondents and 200 New
Zealanders were conducted to gather information on consumers’ attitudes to fruit leathers and
their preferences for specific product characteristics. They were also asked to evaluate seven
representative fruit leather products using a 9-point hedonic scale for various sensory attributes
as well as overall liking and their responses together with data that was obtained from trained
panel was used in QFD to define the importance of the various sensory characteristics for the
design of a new fruit leather. From the principal component analysis and partial least square
regression analysis, it was clearly showed that Thai consumers and New Zealanders have a same
direction in overall liking of fruit leather. The new fruit leather should be less sweet with some
slightly of hardness and adhesiveness same as the result from QFD. A 3x3 factorial design was
used to optimise the addition levels of glucose syrup and pectin in gold kiwifruit leather for Thai
consumers. A recipe with 15g glucose syrup and 2g pectin per 100g gold kiwifruit puree had the
highest hedonic score. A 3x2 factorial design was used to optimise the addition levels of
glycerine and pectin in gold kiwifruit leather for New Zealanders. A recipe with 2g pectin and
1g glycerine per 100g gold kiwifruit puree had the highest hedonic score for New Zealanders.
Gold kiwifruit leather from the highest hedonic score from Thai consumers was studied on the
properties during stored at 15°C, 25°C, 35°C and 45°C. Color was very important affecting
overall acceptance ratings. Dark color samples were found to be unacceptable by consumers,
these corresponded to gold kiwifruit leather stored at 35°C and 45°C for 8 weeks and 4 weeks,
respectively. The degradation of ascorbic acid and lightness (L*) of gold kiwifruit leather stored
at different temperature during 8 week fitted well to the zero order kinetic model.
In the product design and development process, quality function deployment (QFD)provides a comprehensive, systematic approach to ensure new products meet or exceedcustomers’ expectations. QFD is a powerful tool because it can reduce time to market, improvequality and increase customer satisfaction. A survey of 400 Thai respondents and 200 NewZealanders were conducted to gather information on consumers’ attitudes to fruit leathers andtheir preferences for specific product characteristics. They were also asked to evaluate sevenrepresentative fruit leather products using a 9-point hedonic scale for various sensory attributesas well as overall liking and their responses together with data that was obtained from trainedpanel was used in QFD to define the importance of the various sensory characteristics for thedesign of a new fruit leather. From the principal component analysis and partial least squareregression analysis, it was clearly showed that Thai consumers and New Zealanders have a samedirection in overall liking of fruit leather. The new fruit leather should be less sweet with someslightly of hardness and adhesiveness same as the result from QFD. A 3x3 factorial design wasused to optimise the addition levels of glucose syrup and pectin in gold kiwifruit leather for Thaiconsumers. A recipe with 15g glucose syrup and 2g pectin per 100g gold kiwifruit puree had thehighest hedonic score. A 3x2 factorial design was used to optimise the addition levels ofglycerine and pectin in gold kiwifruit leather for New Zealanders. A recipe with 2g pectin and
1g glycerine per 100g gold kiwifruit puree had the highest hedonic score for New Zealanders.
Gold kiwifruit leather from the highest hedonic score from Thai consumers was studied on the
properties during stored at 15°C, 25°C, 35°C and 45°C. Color was very important affecting
overall acceptance ratings. Dark color samples were found to be unacceptable by consumers,
these corresponded to gold kiwifruit leather stored at 35°C and 45°C for 8 weeks and 4 weeks,
respectively. The degradation of ascorbic acid and lightness (L*) of gold kiwifruit leather stored
at different temperature during 8 week fitted well to the zero order kinetic model.
การแปล กรุณารอสักครู่..
