AI Article Synopsis
- The study aimed to assess how blanching and sonication impact the quality of carrot juice, specifically looking at parameters like Brix, pH, and acidity.
- Blanching in acidified water notably reduced pH and increased acidity, while the combined process of blanching and sonication significantly enhanced juice quality by improving color, cloudiness, and nutritional content.
- Overall, the findings suggest that using both blanching and sonication is beneficial in the food industry for creating high-quality carrot juice with better nutritional properties and lower enzyme activity.
Article Abstract
This study was conducted to evaluate the combined effects of blanching and sonication on carrot juice quality. Carrots were blanched at 100 °C for 4 min in normal and acidified water. Juice was extracted and sonicated at 15 °C for 2 min keeping pulse duration 5 s on and 5 s off (70% amplitude level and 20 kHz frequency). No significant effect of blanching and sonication was observed on Brix, pH and titratable acidity except acidified blanching that decreased pH and increased acidity significantly. Peroxidase was inactivated after blanching that also significantly decreased total phenol, flavonoids, tannins, free radical scavenging activity, antioxidant capacity and ascorbic acid and increased cloud and color values. Sonication could improve all these parameters significantly. The present results suggest that combination of blanching and sonication may be employed in food industry to produce high-quality carrot juice with reduced enzyme activity and improved nutrition.
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| http://dx.doi.org/10.3109/09637486.2013.836735 | DOI Listing |
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