The effect of sodium benzoate (SB) and potassium metabisulphite (PMS) at variousconcentrations on chemical, microbiological and sensory quality of mango pulp during storage wasassessed. Inhibitory activity of the chemical preservatives and their effect on chemical and sensoryattributes was tested periodically by simulating the industrial mango pulp storage in the lab (30-42ºCin the dark), for a period of 90 days. Protein, fats, decreased while ash content and total soluble solid(TSS) increased during the storage period. A slight progressive decline in pH was observed with aproportional increase (p<0.05) in the acidity of the stored pulp samples. Significant inhibition of thetotal bacterial count (TBC) was observed on applying the specified concentrations, however PMS wasshown to be more inhibitory. Storage time significantly (p<0.05) increased the CFU/g of the pulpsamples as the maximum growth was observed after 90 days of storage. Sensory characteristics of thejuice prepared from treated mango pulp samples were affected negatively on addition of preservativeshowever, the samples were accepted by the judges even after three months of storage.
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