Acta Agriculturae Zhejiangensis ›› 2023, Vol. 35 ›› Issue (12): 2944-2953.DOI: 10.3969/j.issn.1004-1524.20221818

• Food Science • Previous Articles     Next Articles

Effects of Staphylococcus simulans ZSJ6 inoculation and addition of celery powder on the contents of nitrite and biogenic amine in fermented sausage

ZHAO Saisai1(), NING Xibin1,2,3,*()   

  1. 1. College of Food Science & Technology, Shanghai Ocean University, Shanghai 201306, China
    2. Laboratory of Quality & Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), Ministry of Agriculture and Rural Affairs, Shanghai 201306, China
    3. National R&D Branch Center for Freshwater Aquatic Products Processing Technology (Shanghai), Shanghai 201306, China
  • Received:2022-12-20 Online:2023-12-25 Published:2023-12-27

Abstract:

Staphylococcus simulans ZSJ6 and celery powder was inoculated as a natural source of nitrite instead of artificially added nitrite. The S. simulans ZSJ6 and celery powder inoculated with fermented sausage were used as the experimental group, and the fermented sausage with 150 mg·kg-1 sodium nitrite and without sodium nitrite were used as the control group, respectively. The pH value, water activity (Aw), color parameter, thiobarbituric acid, total bacterial count, nitrite and biogenic amine content in fermented sausage were determined to explore the effects of S. simulans ZSJ6 on the quality and safety of fermented sausage. The results showed that the fermentor group inoculated with S. simulans ZSJ6 was able to significantly reduce the pH value in fermented sausage (P<0.05), which also led to a significantly faster reduction of Aw in fermented sausages (P<0.05), improved the color of fermented sausage, and inhibited the increase of thiobarbituric acid value and coliform bacteria. The nitrite content in the fermentor group was 7.35 mg·kg-1, which was obviously lower than that of 25.57 mg·kg-1 in the positive control group (P<0.05), and it also inhibited the accumulation of biogenic amine content. Therefore, S. simulans ZSJ6 and celery powder can be used as natural nitrite sources to reduce the nitrite content of meat products and control the accumulation of harmful biogenic amines. It can greatly improve the safety of fermented sausage.

Key words: Staphylococcus simulans, natural starter, fermented sausage, nitrite, biogenic amine

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