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KMID : 1024620190390020266
Food Science of Animal Resources
2019 Volume.39 No. 2 p.266 ~ p.275
torage Stability of Vacuum-packaged Dry-aged Beef during Refrigeration at 4¡É
Kim Seon-Jin

Lee Hyun-Jung
Kim Min-Su
Yoon Ji-Won
Shin Dong-Jin
Jo Cheorun
Abstract
Although the production of dry-aged beef has been increasing, most purveyors are unaware of the changes in quality that ensue after completion of the aging period and do not adhere to specific guidelines for its packaging and storage. The objective of this study was to investigate the storage stability of vacuum-packaged dry-aged beef based on changes in microbial, physicochemical, and sensory properties during refrigeration at 4¡É for 21 d. The total aerobic bacterial count exceeded 6 Log CFU/g at approximately day 11 and significantly increased after day 14. Freshness indicators such as pH and volatile basic nitrogen content were acceptable until day 14 and 21, respectively. Based on the evaluation of overall sensory acceptability, the dry-aged beef was acceptable until 14 d without any sensory deterioration. Therefore, vacuum-packaged dry-aged beef could be stored for 11 d at 4¡É without any adverse effect on its microbial and sensory quality.
KEYWORD
microbiological quality , sensory quality , dry-aged beef , vacuum packaging , storage stability
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