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Effect of ultrasound on the extraction and modification of starches

ABSTRACT:

Ultrasound is considered a clean technology, because it allows lower energy and chemicals compounds consumption as well as lower generation of waste. Furthermore, it provides shorter processing time and reduces the need for heat application in various processes. Therefore, this technology has been studied in the food industry to replace, improve or accelerate conventional processing techniques. Among the different possibilities of use in the food industry, ultrasound might be considered as an alternative to replace or reduce the use of chemicals during the extraction processes or modification of starches. When used in the starch extraction allows a greater purity of the final product. Towards the modification some changes in the starch granules can be caused by ultrasound, but it depends on the botanical source and starch composition, equipment's parameters and processing conditions.

Key word:
emerging technology; cavitation; starch; food industry

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