KMID : 1007520200290070889
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Food Science and Biotechnology 2020 Volume.29 No. 7 p.889 ~ p.896
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Modeling the effect of vibration on the quality of stirred yogurt during transportation
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Lu Anna
Wei Xinxin Cai Ruikang Xiao Shujun Yuan Haina Gong Jinyan Chu Bingquan Xiao Gongnian
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Abstract
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When transporting yogurt, vibrations and sharp movements can damage its quality. This study developed a model to connect the changes in yogurt quality with the transportation distance as simulated by the total number of vibrations. Linear regression analysis showed that there was a significant negative correlation between the water holding capacity and hardness of the yogurt over the same transport distance (p?0.05). The yogurt vibration model was established by combining principal component analysis with a Back-Propagation Artificial Neural Network model. The number of training iterations was 2669, with a correlation coefficient of 0.96611, indicating that the model was reliable. The optimal transportation distance was determined to be within the range from 20 rpm for 8 h to 100 rpm for 4 h.
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KEYWORD
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Stirred yogurt, Forward back propagation, Artificial neural network model, Physical and chemical properties
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