Australian Seafood Cooperative Research Centre and School of Land and Food, University of Tasmania, Private Bag 54, Hobart, Tasmania, Australia.
School of Land and Food, University of Tasmania, Private Bag 54, Hobart, Tasmania, Australia.
Food Microbiol. 2015 May;47:111-5. doi: 10.1016/j.fm.2014.12.001. Epub 2014 Dec 10.
Most existing models for the spoilage of modified atmosphere packed Atlantic salmon are based on the growth of the spoilage organism Photobacterium phosphoreum. However, there is evidence that this organism is not the specific spoilage organism on salmon produced and packaged in Australia. We developed a predictive model for the growth of bacteria in Australian-produced Atlantic salmon stored under modified atmosphere conditions (30-98% carbon dioxide in nitrogen) at refrigeration temperatures (0-10 °C). As expected, both higher levels of carbon dioxide and lower temperatures decreased the observed growth rates of the total population. A Bělehrádek-type model for growth rate fitted the data best with an acceptably low root mean square error. At low temperatures (∼0 °C) the growth rates in this study were similar to those predicted by other models but at higher temperatures (∼10 °C) the growth rates were significantly lower in the current study.
大多数用于包装的改良气氛下的大西洋三文鱼变质模型都是基于腐败生物体荧光假单胞菌的生长。然而，有证据表明，这种生物体并不是在澳大利亚生产和包装的三文鱼的特定腐败生物体。我们开发了一种用于预测在冷藏温度（0-10°C）下，在改良气氛条件下（30-98%的二氧化碳在氮气中）储存的澳大利亚产大西洋三文鱼中细菌生长的预测模型。正如预期的那样，较高水平的二氧化碳和较低的温度降低了总种群的观察生长速率。生长速率的 Bělehrádek 型模型拟合数据的效果最好，根均方误差可接受较低。在较低的温度（约 0°C）下，本研究中的生长速率与其他模型预测的相似，但在较高的温度（约 10°C）下，本研究中的生长速率明显较低。
