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Flux evaluation based on fouling mechanism in acoustic field assisted ultrafiltration for cold sterilization of tender coconut water.

Archana, Gopalrao Lamdande and Rochak, M. and Raghavarao, K. S. M. S. (2020) Flux evaluation based on fouling mechanism in acoustic field assisted ultrafiltration for cold sterilization of tender coconut water. Innovative Food Science and Emerging Technologies, 61.

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Abstract

Membrane-based processing was attempted as a clean, green and energyefficient method for cold sterilization of tender coconut water (TCW). Ultrafiltration of TCW was carried out at four different pressures employing two different polyethersulfone membranes, using a stirred cell. Permeate flux was evaluated based on different fouling mechanisms which are analysed employing Hermia‘s model. The objective of the study was to examine the efficacy of ultrafiltration for cold sterilisation of TCW while retaining good sensory quality. The effect of acoustic field (ultrasonication) on the performance of ultrafiltration has been evaluated. Permeate flux increased on the application of ultrasonication. Enzyme activities in TCW permeate were found to reduce after ultrafiltration with good sensorial acceptability. Microbial load of TCW after ultrafiltration was observed to decrease from 4.16 to 0.0 log CFU/mL, achieving cold sterilization. Sensorial quality of ultrafiltered TCW was found to be good after three months storage period with zero microbial count.

Item Type: Article
Uncontrolled Keywords: Food processing; Ultrafiltration; Acoustic field; Enzyme activity; Fouling mechanism
Subjects: 600 Technology > 08 Food technology > 33 Nuts > 01 Coconut
600 Technology > 08 Food technology > 05 Processing and Engineering
Divisions: Food Engineering
Depositing User: Food Sci. & Technol. Information Services
Date Deposited: 01 May 2020 07:29
Last Modified: 01 May 2020 07:29
URI: http://ir.cftri.com/id/eprint/14283

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