Batch accuracy of on-line fat determination

被引：25

作者：

Hansen, PW ^{[1
]}

Tholl, I ^{[1
]}

Christensen, C ^{[1
]}

Jehg, HC ^{[1
]}

Borg, J ^{[1
]}

Nielsen, O ^{[1
]}

Ostergaard, B ^{[1
]}

Nygaard, J ^{[1
]}

Andersen, O ^{[1
]}

机构：

[1] FOSS AS, DK-3400 Hillerod, Denmark

来源：

MEAT SCIENCE | 2003年 / 64卷 / 02期

关键词：

fat content; batch accuracy; dual energy X-ray; sampling error;

D O I：

10.1016/S0309-1740(02)00169-9

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

A new method for determination of the fat content of large meat batches without sampling is presented. It is based on dual-energy X-ray (DXR) scanning of meat trimmings prior to, mixing, in order to determine the, exact fat content of the resulting meat batch. Twenty-seven samples of three types of pork trimmings with a fat content ranging from 24 to 63% were collected and combined into batch sizes of 27-241 kg. At small batch sizes (27 kg) the nature of. the measurement error is mainly, random, resulting in a prediction error (root mean square error of prediction) of 0.57% against the reference method. At a batch size of 241 kg the error was reduced to 0.34%. The DXR method determines the fat content of all meat in a batch without any sampling required, thus reducing the sampling error to a minimum. This is essential, as the results show that the sampling error is large: when 27-kg samples were homogenized and measured by the reference method, the standard deviation of high-fat samples was 4.7%. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：141 / 147

页数：7

共 20 条

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[2]

BERG H, 1991, FLEISCHWIRTSCHAFT, V71, P765

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