National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Beet root (Beta vulgaris L.) has many applications in the food and pharmaceutical sectors as an additive. It is a health-promoting vegetable and is valued for its natural colour and medicinal properties. Effect of air flow rate and feed flow rate on the moisture content, bulk density, solubility, hygroscopicity, betalain content and product recovery of the fermented beet root juice powder was investigated. The beet root juice was fermented at 250C for 24 h with Saccharomyces cerevisiae, (MTCC 178). A central composite method was used to design the experiments and response surface methodology (RSM) was used for the optimization of spray drying of fermented beet root juice. All the experiments were conducted at a constant inlet air temperature (144ºC) and maltodextrin concentration (5%). Air flow rate varied from 49.56 to 59 m3/h and feed flow rate varied from 120 to 150 mL/h. The optimized parameters for spray dried fermented beet root juice powder were obtained with the air flow rate of 57.92 m3/h and feed flow rate of 150 ml/h and corresponding responses were: moisture content (3.68%), solubility (90.0%), hygroscopicity (0.186 g/g) bulk density (0.455g/ml), betalain content (16.4 %) and product recovery (14.01%).
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