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Inactivation Model of Mold Spores by Infrared Heating under Non-Isothermal Conditions

机译：非等温条件下红外加热使霉菌孢子失活模型

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摘要

The inactivation effect of infrared (IR) heating (peak wavelength of the lamp = 0.96 μm) at different intensities on two kinds of mold conidia (Cladosporium sp. and Penicillium sp.) isolated from peaches was investigated on an agar growth medium. Treatment times of 40 s and 60 s were required for a one log reduction in the population of Cladosporium sp. and Penicillium sp. microorganisms at a heating distance of 90 mm. The high resistance to IR heating exhibited by Penicillium sp. was caused by its high lethal temperature (T_(ref)) of 326 K, whereas T_(ret) of Cladosporium sp. is much lower at 316 K. The first order kinetics model parameters under non-isothermal conditions were obtained from the data. The prediction model agreed well with the experimental data with a Root Mean Squared Logarithmic Error (RMSLE) of 0.74 and 0.45 for Cladosporium sp. And Penicillium sp., respectively.
机译：在琼脂生长培养基上，研究了不同强度的红外加热（灯的峰值波长= 0.96μm）对桃子分离出的两种霉菌分生孢子（Cladosporium sp。和Penicillium sp。）的灭活作用。要使Cladosporium sp。种群减少1个对数，需要40 s和60 s的处理时间。和青霉菌加热距离为90毫米的微生物。青霉菌显示出对红外加热的高抵抗力。是由于它的高致死温度（T_（ref））为326 K，而Cladosporium sp。的T_（ret）引起的。在316 K时要低得多。从数据中获得了非等温条件下的一阶动力学模型参数。预测模型与实验数据吻合良好，克拉多孢菌的均方根对数误差（RMSLE）为0.74和0.45。和青霉菌。

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  • 来源
    《Food science and technology research》 |2013年第6期|979-982|共4页
  • 作者

    Vipavee Trivittayasil; Fumihiko Tanaka; Daisuke Hamanaka; Toshitaka Uchino;

  • 作者单位

    Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, 6-10-1, Hakozaki, Higashi-ku, Fukuoka 812-8581,Japan;

    Laboratory of Postharvest Science, Faculty of Agriculture, Kyushu University, 6-10-1, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan;

    Laboratory of Postharvest Science, Faculty of Agriculture, Kyushu University, 6-10-1, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan;

    Laboratory of Postharvest Science, Faculty of Agriculture, Kyushu University, 6-10-1, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan;

  • 收录信息 美国《科学引文索引》(SCI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    infrared heating; surface decontamination; mold; pasteurization;

    机译：红外加热表面去污;模子;巴氏灭菌;

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