Lactic Acid Based Spoilage Indicator for Milk.

Mrudula, Guggilla and Matche, R. S. (2016) Lactic Acid Based Spoilage Indicator for Milk. Indian Journal of Advances in Chemical Science (S1). pp. 68-72.

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Abstract

Food packaging plays a significant role in food product marketing. Attempts have been made to develop the spoilage indicator for milk based on the diffusion of lactic acid, which is temperature dependent. Four lactic-acid based indicators were obtained at different substrate concentrations. An irreversible color change of the pH sensitive indicator (from light green to red) clearly and progressively occurred due to gradual pH reduction; here, the vapor diffusion of lactic acid occurs which indicates the pH reduction. This indicator used as both external and internal indicators for the detection of milk spoilage. This indicator incorporated in the packed milk film with the help of the unidirectional permeable membrane. The unidirectional permeable membrane allows only one direction that is from milk to the indicator and avoids backward flow which prevents the migration into the milk. Time-temperature indicator (TTI) to be considered as good candidates to monitor quality losses of food the activation (Ea) values of TTIs and activation (Ea) values of quality food losses have to match.

Item Type:	Article
Uncontrolled Keywords:	Time-temperature indicator, Milk shelf life, Shelf life indicator, Smart packaging
Subjects:	500 Natural Sciences and Mathematics > 07 Life Sciences > 04 Microbiology > 02 Bacteriology 600 Technology > 08 Food technology > 27 Dairy products
Divisions:	Food Packaging Technology
Depositing User:	Food Sci. & Technol. Information Services
Date Deposited:	09 Jan 2018 08:15
Last Modified:	09 Jan 2018 08:15
URI:	http://ir.cftri.res.in/id/eprint/13257

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