Iranian Food Science and Technology Research Journal
with the collaboration of Iranian Food Science and Technology Association (IFSTA)

Clarification of sour orange juice by ultrafiltration: Optimization of permeate flux and fouling resistances using response surface methodology

Document Type : Research Article-en

Authors

Mohammadmahdi Seyedabadi 1
Mahdi Kashani-Nejad 2
Alireza Sadeghi Mahoonak
Yahya Maghsoudlou 1
Fakhreddin Salehi 3

1 Gorgan University of Agricultural Sciences and Natural Resources

2 Gorgan University of Agricultural Sciences and Natural Resources.

3 Bu-Ali Sina University

https://doi.org/10.22067/ifstrj.v12i3.45562
Abstract
The turbidity of sour orange juice after juice extraction affects on quality, shelf-life and concentration of juice. Therefore, juice clarification is an important operation in the fruit processing industry. The goal of this study was evaluating the effect of membrane operation parameters including pressure (120-220 kPa) and temperature (25-35 ºC) on the permeate flux and hydraulic resistance of sour orange juice during membrane clarification. Response surface methodology (RSM) was used to optimizing the operating parameters. Results of the experiments showed that the permeate flux was raised with increasing of temperature, but total hydraulic resistance (RT), concentration polarization resistance (Rcp) and gel layer resistance (Rg) was decreased in mentioned condition. The permeate flux, membrane resistance (Rm), RT, Rcp and fouling index was raised with increasing in pressure. The Rm and fouling index are showed different behavior depending on temperatures level. Results of process optimization indicated that the best conditions to maximize of permeate flux, and to minimize of fouling index and RT achieved at 35 ºC and 120 kPa for a maximum desirability of 0.761.

Keywords

Sour orange
Clarification
Response Surface Methodology
Ultrafiltration
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Iranian Food Science and Technology Research Journal
Volume 12, Issue 3 - Serial Number 39
July and August 2016
Pages 350-361

  • Receive Date 01 April 2015
  • Revise Date 23 May 2015
  • Accept Date 04 June 2015
  • First Publish Date 22 July 2016

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