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Comparative Study of the Antibacterial Effects of S-Nitroso-N-acetylcysteine and Sodium Nitrite Against and Their Application in Beef Sausages

Overview
Journal Foods
Specialty Biotechnology
Date 2024 Aug 10
PMID 39123574
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Abstract

This study investigated the antibacterial effects of S-nitroso-N-acetylcysteine (SNAC) and sodium nitrite (NaNO) against and their application in beef sausages. Both SNAC and NaNO demonstrated pH-responsive antibacterial activity, with SNAC showing greater efficacy than NaNO ( < 0.05) at the same pH (3, 5, and 7). The reactive oxygen species (ROS) and reactive nitrogen species (RNS) induced in by SNAC were significantly higher than those induced by NaNO ( < 0.05), and both ROS and RNS values increased as the pH decreased. In addition, a lower pH led to more pores on the cell surface and increased membrane permeability, resulting in a more pronounced inhibitory effect. When applied to a beef sausage, SNAC-treated sausages had significantly lower total colony counts and carbonyl content compared to NaNO-treated ones ( < 0.05). Consequently, SNAC shows great potential as a replacement for NaNO in meat products.

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