皮下脂肪
脂肪酸
动物科学
拉曼光谱
线性判别分析
数学
生产(经济)
生产系统(计算机科学)
食品科学
生物
化学
环境科学
统计
生物化学
物理
光学
脂肪组织
经济
宏观经济学
作者
Bridgette G. Logan,David Hopkins,Leigh Schmidtke,Stephanie M. Fowler
出处
期刊:Meat Science
[Elsevier]
日期:2022-02-03
卷期号:187: 108753-108753
被引量:5
标识
DOI:10.1016/j.meatsci.2022.108753
摘要
A total of 960 beef carcases from northern and southern Australian production regions were assessed by examining the subcutaneous fat. Carcases from four different production systems within each region were assessed, by Raman spectroscopy and the fatty acid composition determined to develop models that best classified the various production systems. As a result, 12 Partial Least Square Discriminant Analysis models were developed. A two-class model based on fatty acid composition was able to correctly classify 99% of grass and grain fed animals. The best Raman spectroscopic model correctly classified 94% of grass vs grain carcases produced in the northern region. For the southern production region, the models had the following classification accuracies; southern long-term grain fed (98%), southern short-term grain fed (95%), southern grass (96%), southern grass supplemented (97%), and the southern model classified grass vs grain (97%). Raman spectroscopy is considered a useful rapid method for classification of beef carcases based upon production system.
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