期刊
JOURNAL OF FOOD SCIENCE AND TECHNOLOGY-MYSORE
卷 54, 期 10, 页码 3314-3326出版社
SPRINGER INDIA
DOI: 10.1007/s13197-017-2782-6
关键词
Food spoilage; Microbial rancidity; Shewanella; Brush cherry; Riberry; Natural preservative; Natural products
资金
- Environmental Futures Research Institute, Griffith University, Australia
- School of Natural Sciences, Griffith University, Australia
Syzygium australe and Syzygium luehmannii fruit and leaf were investigated for their ability to inhibit Shewanella spp. growth. Extracts of both Syzygium spp. displayed potent growth inhibitory properties against all Shewanella spp. tested in disc diffusion and liquid diffusion assays. In general, S. australe extracts were more potent inhibitors of Shewanella spp. growth, and the fruit extracts were generally better than the corresponding leaf extracts. The methanolic S. australe fruit extract was a particularly potent inhibitor of all Shewanella spp. growth, with MIC values as low as 87 A mu g/mL. The aqueous and ethyl acetate S. australe fruit extracts were similarly potent inhibitors of Shewanella spp. growth, albeit with slightly higher MIC values. Several other Syzygium spp. extracts also were potent bacterial growth inhibitors, albeit with MIC values generally > 1000 A mu g/mL. The most potent S. australe fruit extracts were nontoxic in the Artemia franciscana bioassay, with LC50 values substantially > 1000 A mu g/mL. The potent bacterial growth inhibitory activity and lack of toxicity of the S. australe fruit extracts indicate their potential as natural fish and seafood preservatives.
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