Chang Ho-Seok, Song Kwang-Young, Kim Young-Ji, Chon Jung-Whan, Kim Hyunsook, Jang Keum-Il, Kim Eui-Su, Seo Kun-Ho
Department of Public Health and KU Center for Food Safety, College of Veterinary Medicine, Konkuk University, Hwayang-dong, Seoul, 05029 Gwangjin-gu Korea.
Department of Food Nutrition, College of Human Ecology, Hanyang University, Wangsimni-ro, Seoul, 04710 Seongdong-gu Korea.
Food Sci Biotechnol. 2020 Jun 23;29(10):1433-1438. doi: 10.1007/s10068-020-00783-x. eCollection 2020 Oct.
This study aimed to investigate the influence of sodium reduction and storage temperature on the growth of total microbes and in naturally contaminated hamburger patty and loaf bread, respectively. The sodium reduction rate of hamburger patty and loaf bread was 20% and 30%, respectively, and experimental samples were kept at 4 °C, 25 °C, and 40 °C for 60 h. The microbiological analysis included the colony count of total microbes and The water activity (Aw), titratable acidity (TA), and pH were assessed as factors that inhibit microbial growth. In this study, Aw, TA, and pH of all samples were affected by the growth of total microbes and during the storage period. Hence, these results suggested that sodium reduction in processed foods should be preferentially applied as a potent inhibition strategy after accurate assessment of inhibitors for different food types.
本研究旨在分别调查减少钠含量和储存温度对天然污染的汉堡肉饼和面包片中总微生物生长的影响。汉堡肉饼和面包片的钠减少率分别为20%和30%,实验样品分别在4℃、25℃和40℃下保存60小时。微生物分析包括总微生物的菌落计数,水分活度(Aw)、可滴定酸度(TA)和pH值被评估为抑制微生物生长的因素。在本研究中,所有样品的Aw、TA和pH值在储存期间均受到总微生物生长的影响。因此,这些结果表明,在准确评估不同食品类型的抑制剂后,应优先采用减少加工食品中钠含量的方法作为一种有效的抑制策略。