Method for detecting milk adulteration

Abstract

The invention discloses a method for detecting milk adulteration. The method comprises the following steps: (1) respectively measuring total milk solid based on g / 100g of milk, fat based on g / 100g of milk, an ice point based on DEG C, and milk sugar based on g / 100g of milk, and orderly marking numerical values to be ST, Fat, FPD and La; (2) substituting the total solid content of the milk, the fat content, the ice point and the milk sugar content into the following formula to calculate a characteristic index coefficient Q, Q=(1.486Fat-ST+7.229)*(-0.074Lac-FPD-0.166); (3) judging whether the milk is adulterated or not according to the milk characteristic index coefficient Q, and judging the milk to be normal when the numerical value of Q meets the condition that Q is smaller than or equal to 0.0036 and greater than or equal to -0.0036, and judging the milk to be adulterated milk when the numerical value of Q is smaller than -0.0036 or greater than 0.0036. The method for measuring the milk sugar content is a milk sugar measuring method in import and export milk and milk products. The colorimetric blank dilution ratio of the measured milk is 20-25 fold. The method is comprehensive, effective and fast.

Description

Technical field [0001] The invention belongs to the field of milk quality evaluation, and specifically relates to a detection method of milk adulteration. Background technique [0002] In recent years, my country’s dairy industry has developed rapidly and its product structure has undergone great changes. It has become a modern food manufacturing industry with advanced technology and equipment, a relatively complete range of products, and a beginning to take shape. With the gradual improvement of people’s living standards, the dairy product consumer market will With continuous expansion and maturity, China will become the world's largest potential market for dairy products consumption. However, many problems and hidden dangers have also arisen during the development of the dairy industry, and the safety problems caused by adulteration of dairy products are endless. [0003] In recent years, the research on the detection of adulteration of dairy products has continuously made new pr...

AI Technical Summary

Problems solved by technology

Although these methods can judge the quality of milk to a certain extent, it is difficult to take into account both the technical personnel's requirements for equipment and instrument operation and the targeted high-level adulteration at the same time, which has certain limitations.

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