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Effect of starter culture on microbiological, physiochemical and nutrition quality of Xiangxi sausage

  • Sha Du
  • Huan Cheng
  • Jin-Kui Ma
  • Zong-jun Li
  • Chuan-hua WangEmail author
  • Yuan-Liang WangEmail author
Original Article
  • 8 Downloads

Abstract

Fermented sausages have a long tradition originating from China. In this study, three starter microorganisms including Pediococcus pentosaceus (P), Staphylococcus xylosus (S), and a combination of P. pentosaceus and S. xylosus (P + S) were conducted for the manufacture of traditional Xiangxi (a city in China) fermented sausages. The physicochemical changes of the above three kinds of sausages during fermentation were studied and discussed, and also compared with these properties on the natural fermented sausage (N, i.e., control). The results revealed that five kinds of bacterial phases were existed at different fermentation stages in N, P, S and P + S fermented sausages, respectively. The microbiological data showed that an initial enterobacteria count of approximately 5.3 log CFU/g for all four batches of sausages. The enterobacteria count in the inoculated sausages of P and P + S groups decreased significantly to about 1 log CFU/g whereas group N and S had a count of about 3.3 log CFU/g after fermentation. In the early stages of fermentation, the pH rapidly decreased below 5.3. FAA and FFA were significantly increased in all groups and TBARS value in group P was higher than that of the other three groups. In conclusion, starter cultures can be used to improve the hygiene level of Xiangxi sausages without significant effects on pH, AW, and nitrite residue.

Keywords

Xiangxi sausage Pedicoccus pentosaceus Staphylococcus xylosus Microorganism and physicochemical characteristics Free amino acid Free fatty acid 

Abbreviations

N

Natural fermentation

P

Pediococcus pentosaceus

S

Staphylococcus xylosus

P + S

Mixed fermentation

FAA

Free amino acid

FFA

Free fatty acid

TBARS

Thiobarbituric acid reactive substances

MUFA

Mono-unsaturated fatty acids

PUFA

Polyunsaturated fatty acids

Notes

Acknowledgements

Authors are grateful for financial supports from the Department of Agriculture of Hunan Province, China, and Core Research Program 1515, Hunan Agricultural University.

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Copyright information

© Association of Food Scientists & Technologists (India) 2019

Authors and Affiliations

  1. 1.College of Food Science and TechnologyHunan Agricultural UniversityChangshaChina
  2. 2.College of Chemistry and Chemical EngineeringZhaoqing UniversityZhaoqingChina

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