Studies on the changes in physico-chemical properties during storage and economics of date palm (Phoenix dactylifera) ready-to-serve (RTS) per bottle

Abstract

The present investigation entitled “Studies on the changes in physico-chemical properties during storage and economics of date palm (Phoenix dactylifera) Ready-To-Serve (RTS) per bottle” was carried out at Faculty of Agricultural Science, Madhav University, Pindwara, Rajasthan and the Post-Harvest laboratory, Department of Horticulture, College of Agriculture, Junagadh Agriculture University, Junagadh (Gujarat) during the year 2018-19. The Main objectives of the present investigation date palm RTS to evaluate the sensory parameters and their stability at room temperature, storage and the economics of various treatments for date palm RTS beverages was also worked out. Among the treatments two pulp concentration 20% & 25% pulp and 3 levels of TSS i.e. (16%, 17% and 18% of RTS) were used for preparation of the RTS. The % TSS values recorded for date palm RTS increases with the increase in sugar content and storage period the highest value of % TSS was registered with treatment 6th (25% pulp + 18% TSS + 0.3% acidity of RTS). The higher value of % acidity was recorded with the treatment 6th (25% pulp + 18% TSS of RTS) (0.91%) at final stage of observation. At initial stage the maximum (393.91) TSS/Acid ratio was recorded with the (60) TSS/Acid ratio was recorded with the treatment 3rd and 6th (20% pulp + 18% TSS of RTS and 25% pulp + 18% TSS of RTS respectively). The value of pH at initial stage was recorded minimum in the treatment 2nd (6.82) and the maximum value was recorded in treatment 5th (6.84). Economics of the treatment was calculated the minimum cost i.e. Rupees 24.7 per bottle was recorded with the treatment 1st. Whereas, the maximum cost was recorded with the treatment 6th.