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Portfolio of beetroot (Beta vulgaris L.) peel extracts concentrated by nanofiltration membrane
Citations
2
Alvaro Alexandre Junior, Aline Nunes, Marcelo Maraschin
(2025)
Transforming Agro-Industrial Waste Into High-Value Industrial Products: a Systematic Review
Revista de Gestão Social e Ambiental, 19(4)
10.24857/rgsa.v19n4-099
Moh Moh Zin, Areej Alsobh, Arijit Nath, Attila Csighy, Szilvia Bánvölgyi
(2022)
Concentrations of Beetroot (Beta vulgaris L.) Peel and Flesh Extracts by Reverse Osmosis Membrane
Applied Sciences, 12(13)
10.3390/app12136360Portfolio of beetroot (Beta vulgaris L.) peel extracts concentrated by nanofiltration membrane
Hungarian University of Agriculture and Life Sciences
Published: 18.10.2021.
Volume 10, Issue 2 (2021)
pp. 334-345;
Abstract
Membrane process is an intelligent alternative way of concentration, preferably for organic juices rich in thermolabile natural components. The expectation is to scale up the extraction of desired compounds from agro-industrial wastes through modernized concentration method. Recovery of betalains, phenolic, and antioxidant from beetroot peel extracts was accomplished by nanofiltration membrane (NF 200) at a recirculation flow rate (400 L h-1) and feed temperature (30 ºC) under constant transmembrane pressure (40 bar). Characterization of betaxanthin, betacyanin, phenolic, and antioxidant activity by spectrophotometric analysis revealed that the final samples contain these compounds respectively: 202.25±3.26 mg.L-1, 360.07±8.43 mg.L-1, 987.79±19.18 mg.L-1, 642.06±14.78 mg.L-1 (pure water); 206.62±1.37 mg.L-1, 339.72±2.89 mg.L-1, 972.72±47.49 mg.L-1, 745.97±25.45 mg.L-1 (ethanol-water). Final samples exhibit vivid colour and a considerably large amount of desired compounds compared to crude extracts and could have industrial applications.
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