综合指数与粗糙集联用法评价豆制品质量安全

Evaluation of quality and safety of soybean products by comprehensive index and rough set

中文关键词:  综合指数法  粗糙集  豆制品  食品安全  评价

英文关键词:comprehensive index method  rough set  bean food  food safety  evaluation

中文摘要:

      目的 采用综合指数与粗糙集联用法评价豆制品的质量安全。方法 以沈阳市2012—2015年豆制品监测数据为研究对象, 通过指数分级标准, 建立质量评价(综合指数法)与风险评价(粗糙集理论)联用的评价方法。结果 豆制品综合质量指数 (food quality index, FQIt)值为0.139, 评价为优级。2012—2014年FQIt值逐渐升高, 2015年略有下降。在单项指标It值中, 发酵豆制品的苯甲酸(0.552)、非发酵豆制品的菌落总数(0.399)和脱氢乙酸(0.388)相对较高, 为合格级。核心指标为苯甲酸和脱氢乙酸(提示极高风险)、山梨酸(提示存在风险)、菌落总数和大肠菌群(提示存在、较高和极高风险), 预测准确率为96.33%。沈阳市2012—2015年豆制品质量为优级, 卫生质量水平总体上升。结论 该联用法可以评价豆制品质量安全。苯甲酸、山梨酸、脱氢乙酸、菌落总数和大肠菌群是核心检验指标, 提示不同危险程度和发生概率的风险。

英文摘要:

      Objective To evaluate the quality and safety of soybean products by comprehensive index and rough set. Methods Taking the monitoring data of soybean products in Shenyang from 2012 to 2015 as the research object, a evaluation method combining the quality evaluation (comprehensive index method) and risk evaluation (the rough set theory) was established based on the grading standards. Results The food quality index (FOIt) value of soybean products was 0.139, and the quality evaluation was excellent. From 2012 to 2014, the FOIt value of soybean products increased gradually, and declined slightly in 2015. Among the single index It value, benzoic acid (0.552) in fermented soybean products, the aerobic plate count (0.399) and dehydroacetic acid (0.388) in the non-fermented soybean products were qualified grade. The core indicators were benzoic acid and dehydroacetic acid (indicating highest risk), sorbic acid (indicating risk), aerobic plate count and Escherichia coli (indicating risk, high and highest risk), with a prediction accuracy of 96.33%. From 2012 to 2015, the quality of soybean products in Shenyang totality increased. Conclusion This combined method can be used to evaluate soybean products quality and safety. Benzoic acid, sorbic acid, dehydroacetic acid, aerobic plate count and Escherichia coli are the core indicators of soybean products testing, indicating different degrees of risk.