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Effects of ultrasound treatment in purple cactus pear (Opuntia ficus-indica) juice

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ultrasonics_sonochemistry_20_2013.pdf (770.5Kb)
Date
2013
Author
Ramírez Moreno, Esther
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Abstract
ABSTRACT: Cactus pear (Opuntia ficus-indica) fruit is a berry with a tasty pulp full of seeds that constitutes about 10?15% of the edible pulp. In Mexico, cactus pear is mainly consumed fresh, but also has the potential to be processed in other products such as juice. The objective of this study was to eval uate the effect of different ultrasound conditions at amplitude levels ranging (40% and 60% for 10, 15, 25 min; 80% for 3, 5, 8, 10, 15 and 25 min) on the characteristics of purple cactus pear juice. The evaluated parameters were related with the quality (stability, _Brix, pH), microbial growth, total phenolic compounds, ascorbic acid and antioxidant activity (ABTS, DPPH and % chelating activity) of purple cactus pear juices. The ultrasound treatment for time period of 15 and 25 min significantly reduced the microbial count in 15 and 25 min, without affecting the juice quality and its antioxidant properties. Juice treated at 80% of amplitude level showed an increased of antioxidant compounds. Our results demon strated that sonication is a suitable technique for cactus pear processing. This technology allows the achievement of juice safety and quality standards without comp romising the retention of antioxidant compounds
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https://repository.uaeh.edu.mx/bitstream/handle/123456789/11988
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Licencia Creative Commons
Esta obra está bajo una Licencia Creative Commons Atribución-NoComercial-SinDerivar 4.0 Internacional.

Theme by 
@mire NV