Analysis of Spoilage Bacterial Source and Microflora in Refrigerated Duck during Processing and Refrigeration

Abstract

Abstract: The effect of industrial processing on the formation of microflora in duck carcasses was studied in the present work. Through traditional microbial culture, the number of microorganisms on workshop contact surface and carcass surface as well as in pre-chilling water during refrigeration was determined. The results showed that the air, chilling water and environment contact surface in workshops were the major sources of contamination and microflora formation. The number of bacteria in environment and on carcass surface displayed a declining trend. Before defeathering, a number of bacteria were transferred from duck surface to the environment; on the other hand, an reversed order was observed after defeathering, which resulted in a periodic rise of bacteria at several steps such as defeathering and evisceration process. The pre-chilling process had a decisive effect on the quality of final products due to the various decontamination effects.

Key words: refrigerated duck, processing and refrigeration, spoilage bacterial, microflora

CLC Number:

References

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