Influence of thermosonication treatments on bioactive compounds and sensory quality of fruit (Haematocarpus validus) juice

The main aim of the paper was to evaluate the quality attributes and consumer acceptability of blood fruit (Haematocarpus validus) juice treated by thermosonication (TS) process. The major process parameters, temperature, processing time, and power load were experimented and the treated samples compared with the conventional pasteurized and untreated juice sample. Results obtained showed the TS-treated juice sample (TS-7) at 55 degrees C/5min/1.4W/ml gives the maximum inactivation of pectin methyl esterase (PME), peroxidase (PO), and polyphenol oxidase (PPO) enzymes, microorganism (total bacteria and yeast and mold), and also excellent sensory qualities. In addition to this, higher retention of ascorbic acid, polyphenols, flavonoids, antioxidant, flavonols, anthocyanins was noted, besides preserving the original color. This optimized TS technique can be employed in numerous beverages industries to produce high quality of fruits and vegetables juices, squash, cordial, and other products. Practical applications Increased health consciousness dictates various lifestyles changes and the need for better quality product in terms of freshness, less or no addictive usage and longer shelf life is warrant. The paper presents such technique: thermosonication (TS) which when employed in beverage's preparation gives the above-stated attributes. TS is a novel and viable technique that is employed to replace the conventional thermal processing. This shall provide great assistance to the commercial beverage industries to cater the health conscious population or otherwise and nonetheless, produced healthier, more stable and quality products which can be of therapeutic used.