MICROBIAL COUNT AND SHELF LIFE OF PHALSA (GREWIA ASIATICA) JUICE
Ambreen Akhtar Saddozai*, Amer Mumtaz*, Saeeda Raza* and Shahzada Arshad Saleem**
ABSTRACT
The study investigated the shelf life of laboratory developed phalsa juice at room temperature. Phalsa was purchased from local market, juice was prepared and kept in sterilized bottles at room temperature. Physicochemical and microbial and oragnoleptic quality of the juice was examined till two weeks. Microbial activity in phalsa juice increased while organoleptic attributes such as texture (mouth feel), flavour, taste, colour and overall acceptability of phalsa juice were decreased during the study period. The pH and TSS value were decreased from 3.99 to 3.54 and from 11.22 to 9.55, respectively after 2 weeks -1 -1 storage. Total plate count also showed decline from 6.2×10 to 3.2 x 10 -1 cfuml whereas yeast and mould counts increased simultaneously from -1 -1 -1 -1 2.6×10 and nil to 5.5x10 and 2.4x10 cfuml , respectively during the storage. To increase shelf life of phalsa juice storage at refrigerated temperature with/without preservatives is recommended.
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