Effects of whey on quality and differential metabolites of fermented camel jerky

Abstract

To explore the effect of whey on the quality of camel meat products, this study developed a whey-fermented camel jerky and examined the impact of whey addition on the quality of fermented camel jerky. The effects of whey existence on the basic characteristics and differential metabolites of fermented camel meat jerky during storage were systematically analyzed using gas-phase (GC) and non-targeted metabolomics techniques in this study. Results showed that the addition of whey had a synergistic effect on jerky, reducing pH, water activity and water content while increasing total amino acids, unsaturated fatty acid levels and PUFA/SFA ratio. Lipid, lipid-like molecules, amino acids, small peptides (dipeptides), and organic acids were differential metabolites in fermented camel jerky. Glycerophospholipid, amino acid and purine metabolism were the main pathways in whey assisted-fermented camel jerky to enhance the quality of fermented camel jerky. This research provides new insights for optimizing the fermentation process and the development of novel fermented meat products.