Response Surface Optimization For Clarification Of White Pitaya Juice Using A Commercial Enzyme

Abd Rahman, Nur 'Aliaa and Mustapa Kamal, Siti Mazlina and Taip, Farah Saleena and Abdullah, Abdul Ghani Liew (2010) Response Surface Optimization For Clarification Of White Pitaya Juice Using A Commercial Enzyme. Journal of Food Process Engineering, 33 (2). pp. 333-347. ISSN 0145-8876

Full text not available from this repository.

Official URL: http://dx.doi.org/10.1111/j.1745-4530.2008.00277.x

Abstract

Raw white pitaya (Hylocereus undatus) juice is very cloudy and viscous. These physical properties lead to the use of enzymatic treatment to clarify the juice. The aim of this study was to obtain the optimum process conditions for enzymatic clarification using response surface methodology (RSM). White pitaya juice was treated with pectinase enzyme (Pectinex Ultra SP-L) at different maceration times (20–100 min), reaction temperatures (30–50C) and enzyme concentrations (0.01–0.1%). These three variables were used as independent variables whose effects on yield, viscosity, clarity and color were evaluated. From the RSM analysis, the recommended enzymatic treatment condition from the study was found at 0.06% enzyme concentration at 49C for 40 min.

Item Type:Article
Faculty or Institute:Faculty of Engineering
Publisher:Wiley-Blackwell
Altmetrics:http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1111/j.1745-4530.2008.00277.x
ID Code:12395
Deposited By: Anas Yahaya
Deposited On:18 May 2011 09:15
Last Modified:18 May 2011 09:20

Repository Staff Only: item control page

Document Download Statistics

This item has been downloaded for since 18 May 2011 09:15.

View statistics for "Response Surface Optimization For Clarification Of White Pitaya Juice Using A Commercial Enzyme"


Universiti Putra Malaysia Institutional Repository

Universiti Putra Malaysia Institutional Repository is an on-line digital archive that serves as a central collection and storage of scientific information and research at the Universiti Putra Malaysia.

Currently, the collections deposited in the IR consists of Master and PhD theses, Master and PhD Project Report, Journal Articles, Journal Bulletins, Conference Papers, UPM News, Newspaper Cuttings, Patents and Inaugural Lectures.

As the policy of the university does not permit users to view thesis in full text, access is only given to the first 24 pages only.