Changes of microbial load in packet orange juice after expiration date

F. Feroz
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Abstract

Fruit juice is popular product in the markets worldwide, with a market potential of approximately 230 million liters. Fruit juice although nutritious and beneficial for health can also serve as a vehicle for foodborne diseases. Most commercially available products are labelled with a use by date. These are applicable at a consumer and food handler levels, instructing them on the amount of days after opening within which a product must be consumed. It is important to identify the changes that occur after expiration date to have a better understanding of when food spoilage occurs and how long foods may be preserved, in order to reduce food wastage. The current study attempted to identify the changes that occur in orange juice after the expiration date printed on the product packaging. One to seven days after expiration results showed very little change. Increase in the microbial load was observed after day 14, after which a steady increase was observed in total viable bacteria, fungus, E. coli, and Staphylococcus spp. No changes were observed in other examined organisms. Stamford Journal of Microbiology, Vol.8(1) 2018: 27-29
袋装橙汁在保质期后微生物含量的变化
果汁是全球市场上受欢迎的产品,市场潜力约为2.3亿升。果汁虽然营养丰富,有益健康,但也可能成为食源性疾病的传播媒介。大多数市售产品都标有使用日期。这些适用于消费者和食品处理人员的水平,指导他们在开封后必须消费的天数。重要的是要确定保质期后发生的变化,以便更好地了解食物何时发生变质以及食物可以保存多长时间,以减少食物浪费。目前的研究试图确定在产品包装上的过期日期之后橙汁中发生的变化。过期后1 - 7天的结果变化不大。第14天后,微生物负荷增加,之后,总活菌、真菌、大肠杆菌和葡萄球菌的数量稳步增加,其他被检查的微生物没有变化。微生物学报,Vol.8(1) 2018: 27-29
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