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Received: 2005-07-01

Revision Accepted: 2005-09-09

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Journal of Zhejiang University SCIENCE B 2005 Vol.6 No.11 P.1101-1106


Use of fluorometry for determination of skim milk powder adulteration in fresh milk

Author(s):  GUAN Rong-fa, LIU Dong-hong, YE Xing-qian, YANG Kai

Affiliation(s):  Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310029, China; more

Corresponding email(s):   psu@zju.edu.cn

Key Words:  Adulteration, Skim milk powder, Advanced Maillard products, Tryptophan, Fluorescence value, FAST index

GUAN Rong-fa, LIU Dong-hong, YE Xing-qian, YANG Kai. Use of fluorometry for determination of skim milk powder adulteration in fresh milk[J]. Journal of Zhejiang University Science B, 2005, 6(11): 1101-1106.

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publisher="Zhejiang University Press & Springer",

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%T Use of fluorometry for determination of skim milk powder adulteration in fresh milk
%A GUAN Rong-fa
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%A YE Xing-qian
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%D 2005
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2005.B1101

T1 - Use of fluorometry for determination of skim milk powder adulteration in fresh milk
A1 - GUAN Rong-fa
A1 - LIU Dong-hong
A1 - YE Xing-qian
A1 - YANG Kai
J0 - Journal of Zhejiang University Science B
VL - 6
IS - 11
SP - 1101
EP - 1106
%@ 1673-1581
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PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2005.B1101

A FAST (fluorescence of advanced Maillard products and Soluble tryptophan) method for identification of reconstituted milk made from skim milk powder in the fresh milk was developed. Considering milk and skim milk powders variations from different seasons and countries, milk was collected from different dairy farms in different seasons and skim milk powders were collected from different countries to measure the tryptophan (Trp), advanced Maillard products (AMP) fluorescence values. The results showed that there were differences (P<0.01) between raw and reconstituted milk. The plot of values in each mixed level of raw and reconstituted milk had a correlation coefficient >0.97. The FAST method is a simple, rapid, low-cost and sensitive method enabling the detection of 5% reconstituted milk in fresh milk. The measurement of the Trp, AMP fluorescence values and calculation of the FAST index is a suitable method for large-scale monitoring of fresh milk samples.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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