DEVELOPMENT OF A SYSTEM FOR EVALUATING AND SECURING FOOD SAFETY FROM FARM TO TABLE

开发评估和确保从农场到餐桌的食品安全的系统

• 批准号: 14206030
• 负责人: ITOH Kazuhiko
• 金额: $ 23.63万
• 依托单位: HOKKAIDO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-14206030/
• 关键词: electrical impedance; mastitis; soft X-ray; strong acidic electrolysed oxidizing water; pulsed electrical field; blood-in-egg; near infrared spectroscopy; viable cell count prediction model; 電気インピーダンス・トモグラフィ; 乳房炎原因菌; アフラトキシン; 強酸性電解水; 強アルカリ電解水

This study has been conducted to develop an emerging method for hazard detection and control and a tool supporting a food safety management for primary production and processing of foods.1)Development of the technologies for detecting bacteria and a foreign material as hazard factors in foodsA high sensitive electrical impedance measurement system was constructed with an interdigitated microelectrode and a digital lockin amplifier, and the system was useful in evaluating viable cell concentration of yeast and Staphylococcus. A NIR spectroscopy and SIMCA were applied to detect the contamination of milk with Staphylococcus aureus causing bovine mastitis. Each model was effective in identifying S.aureus and evaluating the viable cell count of S.aureus. Soft X-ray spectroscopy and CT method were used to detect a foreign material in foods. The availability and novel application of those methods were presented.2)Development of the technologies for controlling microbial hazardThe effectivenes … More s of sterilization of processed vegetables and the quality preservation during their distribution using strong acidic electrolysed oxidizing water and the frozen ice were validated. The use of alkaline electrolysed water and the application of an anaerobic digestion were effective in removing aflatoxin produced by fungi. A constructed pasteurization system using a pulsed electrical field was applied to the pasteurization of S.epidermidis. The viable cell number in a tested solution showed a logarithmic decrease with an increase in the applied number of an electrical pulse.3)Development of a tool supporting food safety managementDiscrimination of a blood-in-egg contained in white eggs using NIR spectroscopy and PLS regression analysis showed high precision and reproducibility. For brown eggs, the difference of second derivative spectra between a sound egg and a blood-in-egg was useful in discriminating a blood-in-egg. A computer simulation model predicting a microbial growth and the pasteurization period based on heat transfer was developed. The simulated results from the developed model showed a good agreement with theoretical values. Less

本研究旨在开发一种新兴的危害检测和控制方法，并为食品的初级生产和加工提供一种支持食品安全管理的工具。1）食品中有害因素细菌和异物检测技术的开发该系统可用于酵母菌和葡萄球菌活菌浓度的测定。应用近红外光谱技术和SIMCA技术检测牛乳中引起奶牛乳房炎的金黄色葡萄球菌污染。每种模型在鉴定金黄色葡萄球菌和评价金黄色葡萄球菌的活细胞计数方面都是有效的。采用软X射线光谱法和CT法检测食品中的异物。2）微生物危害控制技术的研究进展 ...更多信息 采用强酸性氧化电位水和冷冻冰对加工蔬菜进行杀菌和保鲜。采用碱性电解水和厌氧消化法对真菌产生的黄曲霉毒素有较好的去除效果。构建的巴氏杀菌系统，使用脉冲电场被施加到巴氏杀菌的表皮葡萄球菌。试验溶液中的活细胞数随着电脉冲施加次数的增加而呈对数减少。3）支持食品安全管理的工具的开发利用近红外光谱和PLS回归分析对白色鸡蛋中含有的鸡蛋中的血液的鉴别显示出高精度和再现性。对于褐鸡蛋，正常鸡蛋和带血鸡蛋的二阶导数光谱的差异有助于区分带血鸡蛋。建立了基于传热学的微生物生长和巴氏杀菌周期的计算机模拟模型。从开发的模型的模拟结果表明，与理论值吻合良好。少

项目成果

S.Tanaka, F.Tanaka, K.Morita: "Simulation of Quasi-Steady and Unsteady Cooler Exit Temperature and Humidity"J.Japanese Soc.of Agr.Machinery. 64(1). 83-90 (2002)

S.Tanaka、F.Tanaka、K.Morita：“准稳态和非稳态冷却器出口温度和湿度的模拟”J.Japan Soc.of Agr.Machinery。

Efficacy of acidic electrolyzed water ice for pathogen control on lettuce

• DOI: 10.4315/0362-028x-67.11.2544
• 发表时间: 2004-11-01
• 期刊: JOURNAL OF FOOD PROTECTION
• 影响因子: 2
• 作者: Koseki, S;Isobe, S;Itoh, K
• 通讯作者: Itoh, K

F.Tanaka, K.Morita: "Analysis of Dielectric Properties of Rice Vinegar and Sake"Trans.Of ASAE. 45(3). 733-740 (2002)

F.Tanaka、K.Morita：“米醋和清酒介电特性的分析”Trans.Of ASAE。