STUDY ON ACCELERATED SHELF-LIFE TESTING OF UHT COW MILK

Authors

  • Corina Daniela Lazar Candidate for a doctor`s degree, Faculty of Agriculture Craiova
  • Constantin Gavan Faculty of Agriculture Craiova
  • Vergil Motorga ARDS Simnic-Craiova

Abstract

Real time shelf-life determination of UHT milk can be very time consuming and
expensive. New procedures must be developed to predict or estimate shelf-lifes of a food product without running a full length storage trial. The aim of this study was to gain a deeper know-ledge concerning the general and accepted way of performing accelerated storage tests on diary product with oxidation as the delimiting quality failure parameter. The best oxidative indicator was the total hexanal content. The measurement method of hexanal by using GAS Chromatography (GC) together with Q10 predictive method was the procedure for indirect determination of shelf-life of UHT milk. The shelf-life was estimated to be 217 days when is styored at 25 oC, 81 days at 35 oC and 35 days at 45 oC.

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Published

2015-12-25