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Concentration of lycopene in the pulp of papaya (Carica papaya L.) by ultrafiltration on a pilot scale

Paper ID Volume ID Publish Year Pages File Format Full-Text
18846 43035 2015 10 PDF Available
Title
Concentration of lycopene in the pulp of papaya (Carica papaya L.) by ultrafiltration on a pilot scale
Abstract

•The PES 50 kDa membrane obtained the best results in lycopene retention.•Best permeate flux of 82.5 kg/m2 h in the conditions of 1.5 bar, 6 m s−1 at CF = 1.50.•Models of Cheryan (1998) represented well the experimental data (R2 > 0.9).

Lycopene, one of the most important carotenoids, has been increasingly studied due to positive results in research related to reduced risks of some diseases. The lycopene concentration by ultrafiltration is a viable process, because the carotenoid is retained despite having low molecular weight, since it binds to other larger molecules. Aiming at the concentration of lycopene, the performance of two ultrafiltration (UF) membranes was evaluated, one made of polysulfone with 100 kDa (PS 100) and other polyetersulfone with 50 kDa (PES 50), in different conditions of pressure and tangential velocity. The use of raw or enzymatically hydrolyzed papaya pulp was also evaluated. In addition, diafiltration experiments were carried out with the purpose of obtaining a purified lycopene retentate. The permeation curves showed typical behavior of UF processes. In the studied operational conditions and for the two membranes tested, lycopene retention was higher than 90%. The enzymatic treatment of the raw material had no significant effect on the permeate flux. The best UF performance was obtained with the PS 100 membrane, pressure 1 bar and tangential velocity 6 m s−1. The inclusion of a diafiltration step proved to be effective in order to obtain a lycopene concentrate with higher purity.

Keywords
Ultrafiltration; Diafiltration; Papaya pulp; Lycopene; Polymeric membranes
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Concentration of lycopene in the pulp of papaya (Carica papaya L.) by ultrafiltration on a pilot scale
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Publisher
Database: Elsevier - ScienceDirect
Journal: Food and Bioproducts Processing - Volume 96, October 2015, Pages 296–305
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us