Abstract
Traditional dairy products in India are manufactured using age old methods. Such methods varies from place to place. For industrial production of such products a standardized process is needed. Present study was designed to arrive at a method of manufacture for Thabdi Peda, a very popular sweet in Saurashtra region of Gujarat. Range of process parameters like fat percent of milk (4 to 8%), rate of sugar addition (6 to 10%) and duration of final heat desiccation (20 to 60min) were studied and optimum values determined using Response Surface Methodology (RSM) with central composite rotatable design (CCRD). The samples obtained from trials were analyzed for sensory, physicochemical, compositional and textural attributes. The optimized process developed with 10kg batch of milk having 6% fat, 8.33% rate of sugar addition and 34min duration of heating produced most acceptable product. Standardized Thabdi Peda was found to contain on an average 16.80% fat, 17.48% moisture, 11.25% protein, 20.95% lactose, 29.99% sucrose, 3.53% ash and it gave 28.75% yield. The pH, water activity and HMF (μ Mole/100g) content were 6.42, 0.807 and 121.91 respectively. Standard plate count, Yeast and Mold counts were observed to be 3.68log cfu/g, and 2.51log cfu/g respectively. No coliforms were observed in Thabdi Peda.
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