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基于BP神經(jīng)網(wǎng)絡的鮮雞蛋貨架期預測模型
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現(xiàn)代農(nóng)業(yè)產(chǎn)業(yè)技術(shù)體系北京市家禽創(chuàng)新團隊資助項目(京農(nóng)發(fā)[2011]62號)


BP Neural Network Based Prediction Model for Fresh Egg’s Shelf Life
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    摘要:

    為研究不同溫度范圍內(nèi)雞蛋的品質(zhì)變化及貨架期,通過實驗室模擬,檢測了鮮雞蛋在5、25、35℃條件下的哈夫單位值、蛋黃系數(shù)等理化指標,分別構(gòu)建了同等實驗條件下的鮮雞蛋貨架期動力學預測模型和BP神經(jīng)網(wǎng)絡預測模型,并選取5、25、35℃溫度下共6組數(shù)據(jù)進行模型驗證。結(jié)果表明,基于BP神經(jīng)網(wǎng)絡的鮮雞蛋貨架期模型預測精度達到95.93%,動力學模型預測精度為90.79%,BP神經(jīng)網(wǎng)絡能更精確地預測鮮雞蛋在5~35℃貯藏溫度范圍內(nèi)的貨架期。

    Abstract:

    Eggs have become main sources of protein choice for Chinese consumers due to the fact that they are both inexpensive and rich in vitamins, minerals and protein. However, as a perishable product, the quality of fresh eggs deteriorates continuously during the period from their leaving the farm until final consumption or use in manufacturing. With consumers’ increasing awareness and concern for food safety, increasing attention is being given to the shelf life of eggs through the supply chain. To develop a prediction model of the shelf life of fresh eggs, two types of model were developed and tested, including a kinetic model and a back-propagation (BP) neural network model. A sample of 115 eggs was collected on the same day from the same farm layer-hen house subsequently for use in simulating quality deterioration under laboratory conditions. The experiments were conducted at constant temperatures of 5, 25 and 35℃ to cover the normal range of temperatures that can occur under real egg storage conditions and the experimental results were used to construct the kinetic and BP neural network models, and validation of model shelf-life prediction was compared with actual egg shelf life. Three layers of BP neural network were constructed with Haugh units, yolk index and temperature as the input layer parameters, 10 nodes in the hidden layer and remaining day’s duration of storage as the output layer’s parameter. It was found that the BP neural network model had a superior prediction accuracy of 95.93% compared with 90.79% of the kinetic model. Hence it can be concluded that the BP neural network model could readily be integrated as part of a quality control system setting sell or use-by-dates for consumers.

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劉雪,李亞妹,劉嬌,鐘蒙蒙,陳余,李興民.基于BP神經(jīng)網(wǎng)絡的鮮雞蛋貨架期預測模型[J].農(nóng)業(yè)機械學報,2015,46(10):328-334. Liu Xue, Li Yamei, Liu Jiao, Zhong Mengmeng, Chen Yu, Li Xingmin. BP Neural Network Based Prediction Model for Fresh Egg’s Shelf Life[J]. Transactions of the Chinese Society for Agricultural Machinery,2015,46(10):328-334.

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  • 收稿日期:2014-12-08
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  • 在線發(fā)布日期: 2015-10-10
  • 出版日期: 2015-10-10
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