您现在的位置:食品科学网>杂志>下载

Assessment of the inhibitory effects of sodium nitrite, nisin, potassium sorbate, and sodium lactate on Staphylococcus aureus growth and staphylococcal enterotoxin A production in cooked pork sausage

阅读:
2018-05-18 来源:食品科学网
责任编辑:食品科学
0

  作者:Lu Lin a, Jie Yun Hu a, Yi Wua, Min Chenb, Jie Ouc, Wei Ling Yan a,∗

  关键词:Staphylococcus aureus; Staphylococcal enterotoxin A; Cooked pork sausage; Preservative; Sodium lacta

  内容:This study was conducted to analyze the effects of sodium nitrite, nisin, potassium sorbate, and sodium lactate against Staphylococcus aureus (S. aureus) growth and staphylococcal enterotoxins (SEs) production in cooked pork sausage by inoculating sausage samples containing preservative with an S. aureus strain producing staphylococcal enterotoxin A (SEA) and then storing them at 37 ◦C for 36 h. Samples were analyzed every 3 h to count the S. aureus colonies and to detect SEA. The modified Gompertz model was used to describe S. aureus growth in the samples under various conditions, and the preservatives with a significant antimicrobial effect were selected. In addition, the antimicrobial effects of the selected preservatives under various concentrations were tested. Results showed that sodium nitrite, nisin, and potassium sorbate had a weak effect against S. aureus growth and had no effect against SEA production, whereas sodium lactate could significantly inhibit S. aureus growth and SEA production. Moreover, the antimicrobial effect of sodium lactate was concentration-dependent, wherein sodium lactate concentration <12 g/kg showed no inhibitory effect, but when the concentration was increased to 24 g/kg, sodium lactate could effectively inhibit S. aureus growth and SEA production, and at 48 g/kg, sodium lactate had a significant inhibitory effect.

相关阅读

  • 来源:新京报  |  2016-05-19
    阅读:386

    中粮1元“贱卖”君顶酒庄或因巨债流拍

    4月15日,北京产权交易中心挂出“中粮旗下中国食品拟1元底价拍卖中粮君顶酒庄55%股权”的消息,引起行业一片哗然。1元拍卖的背后实则附有昂贵的“条件”,中标者需承担君顶酒庄所欠中粮3.92亿元的债务,而其实际对外欠账总额高达5亿多元。

  • 来源:新京报  |  2016-05-19
    阅读:386

    央视记者随机买8份草莓 均检出可致癌农药残留

    京华时报讯(记者常鑫),前天,央视财经频道《是真的吗》节目播出一组有关草莓的报道,称该栏目组记者随机在北京购买的8份草莓均检测出含有百菌清和乙草胺两种农药。

  • 来源:新京报  |  2016-05-19
    阅读:386

    麦当劳奶昔退役 业内分析恐因销量下挫

    曾在麦当劳中国餐厅服役近24年的奶昔昨日正式谢幕。虽然麦当劳中国方面称此举属正常产品调整,不过在业内看来,销量的不断下滑或才是此次奶昔下架的真正原因。

微博

食品科学服务号

食品科学订阅号

食品书店

食品科学

定价:25.00¥
会员价:20.00¥

合作媒体