Xie Y, Zhang M, Gao X, Shao Y, Liu H, Jin J, Yang W, Zhang H. Development and antimicrobial application of plantaricin BM-1 incorporating a PVDC film on fresh pork meat during cold storage.
J Appl Microbiol 2018;
125:1108-1116. [PMID:
29742323 DOI:
10.1111/jam.13912]
[Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 04/26/2018] [Accepted: 05/01/2018] [Indexed: 11/28/2022]
Abstract
AIMS
The aim of this study was to develop a plantaricin BM-1, a typical IIa bacteriocin produced by Lactocacillus plantarumBM-1, for active polyvinylidene chloride (PVDC) films and to determine the antimicrobial effect of plantaricin BM-1 incorporated into a PVDC film on fresh pork during 7 days of storage at 4°C.
METHODS AND RESULTS
Plantaricin BM-1 solutions (20 480 AU ml-1 ) that absorbed into the PVDC film increased gradually and reached maximum volumes during exposure for up to 20 h. When soaked in water, the released amount of plantaricin BM-1 from the active PVDC film reached a maximum at 20 h. The plantaricin BM-1 active PVDC film had an obvious antilisterial effect in culture medium and fresh pork inoculated with Listeria monocytogenes. Furthermore, plantaricin BM-1-incorporated PVDC film was also significantly (P < 0·01) reduced to aerobic counts of approximately 1·5 log10 CFU per g after 7 days of storage at 4°C in pork meat, and the pH and total volatile basic nitrogen of pork meat were significantly (P < 0·01, P < 0·05) lower than those of the control.
CONCLUSION
Plantaricin BM-1 active film has an excellent effect to prolong the shelf life of pork meat during cold storage.
SIGNIFICANCE AND IMPACT OF THE STUDY
The results of this study suggest a potential application of bacteriocin active film on meat preservation.
Collapse