Simulation of UV-C Intensity Distribution and Inactivation of Mold Spores on Strawberries

被引：10

作者：

Trivittayasil, Vipavee ^{[1
]}

Tanaka, Fumihiko ^{[2
]}

Uchino, Toshitaka ^{[2
]}

机构：

[1] Kyushu Univ, Grad Sch Bioresource & Bioenvironm Sci, Higashi Ku, 6-10-1 Hakozaki, Fukuoka 8128581, Japan

[2] Kyushu Univ, Lab Postharvest Sci, Fac Agr, Higashi Ku, 6-10-1 Hakozaki, Fukuoka 8128581, Japan

来源：

FOOD SCIENCE AND TECHNOLOGY RESEARCH | 2016年 / 22卷 / 02期

关键词：

UV-C; CFD; strawberries; surface decontamination; DO model; COMPUTATIONAL FLUID-DYNAMICS; CFD SIMULATION; LIGHT; HEAT; PHOTOREACTOR; IRRADIATION; MODELS;

D O I：

10.3136/fstr.22.185

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

The practical usage of UV-C to decontaminate fruits has been limited by the difficulty applying a uniform dose to complicated shapes. Simulation of UV-C radiation treatment was investigated in this study to find the optimal treatment conditions. A setup of strawberries being placed on a UV-transmittable film with radiation sources from the top and bottom was proposed. A 4-lamp model with a horizontal distance of 300 mm between the lamps was found to yield the most uniform dose distribution, with mean radiation intensity of 2.00W m(-2). For this configuration, the treatment time required to achieve one log inactivation of Cladosporium cladosporioides and Penicillium digitatunz spores were 3 min 46 s and 1 min 36 s, respectively. Radiation simulation in combination with the inactivation model has been shown to be a useful tool for the optimization of the UV-C inactivation process.

引用

页码：185 / 192

页数：8

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