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案板材質(zhì)對(duì)單增李斯特菌在生熟食品間交叉污染的影響
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國家自然科學(xué)基金項(xiàng)目(31271896),、上海市科委長三角科技聯(lián)合攻關(guān)領(lǐng)域項(xiàng)目(15395810900),、上海市科委重點(diǎn)支撐項(xiàng)目(13430502400),、農(nóng)業(yè)部農(nóng)產(chǎn)品質(zhì)量安全風(fēng)險(xiǎn)評(píng)估實(shí)驗(yàn)室(杭州)開放課題項(xiàng)目(2015FXPG01)和上海市研究生創(chuàng)新基金項(xiàng)目(10-14-308-101)


Effect of Different Material Cutting Boards on Cross-contamination of Listeria monocytogenes from Raw to Cooked Food
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    摘要:

    為定量分析生熟食品中單增李斯特菌在不同材質(zhì)案板上的交叉污染水平,將1mL單增李斯特菌初始菌懸液接種于鹵豬舌中,,模擬食品制備過程,,在案板上先后對(duì)鹵豬舌和生黃瓜進(jìn)行切片處理,同時(shí),,設(shè)定4種常見場景,,分別測定不同場景下單增李斯特菌從鹵豬舌到案板以及案板到生黃瓜的轉(zhuǎn)移率。此外,,構(gòu)建廚房模擬環(huán)境下食物經(jīng)不同操作方式的暴露評(píng)估模型,,比較消費(fèi)者食用不同材質(zhì)案板處理過的污染單增李斯特菌的生熟食品后發(fā)病率的大小。結(jié)果表明:不同場景下轉(zhuǎn)移率在一定范圍內(nèi)變化,,且不同材質(zhì)案板同場景下轉(zhuǎn)移率差異顯著(P<0.05),。通過暴露模型證實(shí),食用交叉污染的熟肉制品和生鮮蔬菜存在一定風(fēng)險(xiǎn),,且木質(zhì)案板風(fēng)險(xiǎn)顯著高于塑料和不銹鋼案板,。

    Abstract:

    The objective of this work was to quantify the crosscontamination of Listeria monocytogenes from raw to cooked food through different material cutting boards. Transferring experiments were performed to mimic the food preparation process. The marinated pig tongue sample was inoculated with 1mL initial bacterial suspension then put there about 15min before splitting. The cucumber was split on the cutting board at the same position of tongue. Meanwhile, transfer rates from marinated pig tongue to cutting boards and cutting boards to cucumber under various common four scenarios were also determined. Building exposure assessment model of food in different operating modes in the kitchen simulation environment and comparing incidence rate after consumers eating contaminated food dealing with different cutting boards. The results showed that each set of transfer rates proved to be changing in a certain range, and transfer rates of different material cutting boards under the same scenarios varied significantly over experiments (P<0.05). The exposure assessment model of foodborne pathogens from meats to readytoeat vegetables showed the crosscontamination with some potential risks to consumers. And the risk of wood cutting board was higher significantly than that of the other two kinds of material cutting boards.

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董慶利,陸冉冉,汪雯,劉陽泰,宋筱瑜,劉箐.案板材質(zhì)對(duì)單增李斯特菌在生熟食品間交叉污染的影響[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2016,47(3):207-213. Dong Qingli, Lu Ranran, Wang Wen, Liu Yangtai, Song Xiaoyu, Liu Qing. Effect of Different Material Cutting Boards on Cross-contamination of Listeria monocytogenes from Raw to Cooked Food[J]. Transactions of the Chinese Society for Agricultural Machinery,2016,47(3):207-213.

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  • 收稿日期:2015-08-17
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  • 在線發(fā)布日期: 2016-03-10
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