Abstract
Purpose of the Review: Recently, there has been ren ew ed interest in the extraction of juice and functional ingredients from fruits and v egetables. Several consumer-related factors support the adoption of non -thermal technologies. This paper reviews application of pu lsed electric field (PEF) in juice extraction processes. It highlights novel designs of extractors that allow simultaneous applicati on of PEF and p ressure. Parameters that influence juice extracti on and juice quality issues are also discussed. Ma in findings: PEF can be used successfully to induce electroplasmolysis or ho mogenisation of tissues and intensify juice extraction fro m fruits and vegetable materials. The PEF must be applied strategically in order to optimise juice extraction. D irections for Futu re Research: Future studies on PEF-assisted juice extraction will involve applications to extract specific chemical c omponents alone with the juice, optimisation of the different PEF p arameters to obtain desired extraction kinetics and detailed ch emical evaluation of extracts to validate quality. There is currently limited or no commercially available equipment. Equipment manuf actur ers may be involved to design and fabricate easy-to-use PEF extractors. Ke ywords: Pu lsed electric field; juice extraction; elect roplasmolysis; juice quality; pressure; energy
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