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The Shelf Life of Pasteurized Fresh Milk Manufactured in Saudi Arabia
Joseph S Salji1, Suhayl R Saadi1, Ahmed Mashhadi1
1Regional Agriculture and Water Research Center, Food Science and Nutrition Section, Ministry of Agriculture and Water, P.O. Box 17285, Riyadh, Saudi Arabia 11484.
Abstract:
The keeping quality of pasteurized fresh milk was investigated. At 7°C storage, the product conformed to the Saudi Arabian Standard Organization for as long as 7 d and as short as 2 d with ≤10 cfu/ml coliform, ≤10 cfu/ml mold and yeast, ≤50,000 cfu/ml SPC and acceptable sensory qualities. Acceptable sensory attributes with coliform counts of <10 cfu/ml were maintained in the product for 10 d at 7°C. Molds, yeasts and psychrotrophs were instrumental in cutting down the shelf life of the product beyond 10 d at 7°C. The possibility of extending the shelf life from 3 to 5 d should not be denied provided the product is stored at temperatures not exceeding 7°C.
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