Optimization of pork jerky fermentation with Lactobacillus bulgaricus. Issue 1 (23rd November 2017)

• Record Type: Journal Article
• Authors: Zhao, Changqing; Shu, Li; Lu, Ziyang; Huang, Jing; He, Sha; Li, Yubin
• Is Part Of: Journal of food safety. Volume 38:Issue 1(2018)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2017-11-23
• Subjects: Food adulteration and inspection -- Periodicals; Food contamination -- Periodicals; Food -- Analysis -- Periodicals; Food -- Microbiology -- Periodicals; Pathogenic bacteria -- Periodicals; Food handling -- Periodicals; Food preservatives -- Periodicals; 664
• DOI: 10.1111/jfs.12406
• Languages: English
• ISSNs: 0149-6085

Abstract

Abstract: Lactobacillus bulgaricus was used to ferment raw pork to pork jerky at different fermentation conditions, including temperature, initial pH value, and time. Through assessing the sensory attributes, the free amino acids, and pH of the pork jerky, it was determined that the optimum conditions for fermentation was temperature of 35 °C, initial pH of 6.5, and fermentation time of 36 hr. Through fermenting with L. bulgaricus, the texture, the color, and the flavor of the prepared pork jerky were improved. The pH of pork jerky was lower than fresh pork which thus, potentially enhanced the safety of pork jerky. Additionally, the free amino acids contents of pork jerky were higher (greater than 143.5 mg/100 g) than the fresh pork (64.0 mg/100 g) which suggest more benefits and better absorption. The results presented herein demonstrate that the L. bulgaricus can be used for the production of fermented pork jerky to improve the quality attributes and the safety of pork jerky. Practical applications: Pork jerky is a traditional food in China. It is popular because it is tasty and easy to carry. Microbial fermentation technology was applied to the production process of the pork jerky, which can change the traditional dried meat product quality and processing technology that change little for years. The fermented pork jerky not only improves the flavor of pork jerky, also improve its security. Therefore, the fermented pork jerky can overcome the defects of traditional process, such as hard palate, off‐color, and preservative addition.