Clarification of red araçá (Psidium cattleianum Sabine) juice by membrane process: analysis of permeate flux and loss of bioactive compounds

Pinto, L. H. D. and Hamerski, F. and Scheer, A. P. and Silva, V. (2023) Clarification of red araçá (Psidium cattleianum Sabine) juice by membrane process: analysis of permeate flux and loss of bioactive compounds. International Food Research Journal (Malaysia), 30. pp. 163-172. ISSN 2231 7546

Red araçá (Psidium cattleianum Sabine) juice was processed using porous membranes to obtain a clarified product with a high amount of phenolic compounds prior to its use as a juice or other beverage. The variations in the permeate flux and concentrations of phenolics were determined in a cross-flow system using a polyetherimide microfiltration membrane (0.44 µm) and polyethersulfone ultrafiltration membrane (50 kDa). Both membranes reduced the initial turbidity (445 ± 2) to almost zero, and resulted in a clear and transparent permeate with a yellow colour. The microfiltration membrane showed better performance with the lowest phenolic compound retention (23.6%) and the highest permeate flux (40.6 ± 2 kg/m2h) in batch mode operation. The permeate flux of the microfiltration system showed an initial sharp decrease followed by a gradual decrease, reaching almost 60% lower than the initial permeate flux. The permeate flux resistance was mainly due to the polarised layer (70.2%), and the predominant fouling mechanism was the partial pore blockage, thus indicating that the solids present in the raw juice had size of the same order as the membrane pores.

Full text available from: Official URL: http://www.ifrj.upm.edu.my/30%20(01)%202023/13%20-...

Abstract

Red araçá (Psidium cattleianum Sabine) juice was processed using porous membranes to obtain a clarified product with a high amount of phenolic compounds prior to its use as a juice or other beverage. The variations in the permeate flux and concentrations of phenolics were determined in a cross-flow system using a polyetherimide microfiltration membrane (0.44 µm) and polyethersulfone ultrafiltration membrane (50 kDa). Both membranes reduced the initial turbidity (445 ± 2) to almost zero, and resulted in a clear and transparent permeate with a yellow colour. The microfiltration membrane showed better performance with the lowest phenolic compound retention (23.6%) and the highest permeate flux (40.6 ± 2 kg/m2h) in batch mode operation. The permeate flux of the microfiltration system showed an initial sharp decrease followed by a gradual decrease, reaching almost 60% lower than the initial permeate flux. The permeate flux resistance was mainly due to the polarised layer (70.2%), and the predominant fouling mechanism was the partial pore blockage, thus indicating that the solids present in the raw juice had size of the same order as the membrane pores.

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Item Type:	Article
AGROVOC Term:	Psidium cattleianum > Psidium cattleianum Prefer using Psidium littoralePsidium littorale
AGROVOC Term:	fruit juices
AGROVOC Term:	guavas
AGROVOC Term:	phenolic content
AGROVOC Term:	physicochemical processes
AGROVOC Term:	statistical methods
AGROVOC Term:	fouling
AGROVOC Term:	research data
Geographical Term:	Brazil
Uncontrolled Keywords:	Psidium cattleianum Sabine
Depositing User:	Nor Hasnita Abdul Samat
Date Deposited:	29 Oct 2024 02:29
Last Modified:	29 Oct 2024 02:29
URI:	http://webagris.upm.edu.my/id/eprint/225

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