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Thermal Process Requirement and Storage Stability of Canned Guava Drink


Sulaiman, Ishak (1993) Thermal Process Requirement and Storage Stability of Canned Guava Drink. Masters thesis, Universiti Pertanian Malaysia.


A thermal process for canned guava drink was evolved on the basis of inactivation of pectinesterase (PE), the most heat resistant enzyme naturally present in guava. The thermostability of PE in guava drink was determined according to the thermal inactivation time tube method. The kinetics of thermal inactivation of PE in guava drink showed it obeyed first-order reactions. The thermal inactivation time curve of the enzyme was analogous to the thermal death time curve of bacteria. As the heat resistance of spoilage microorganisms is lower than PE in acidic conditions, the enzyme was used in the thermal process evaluation of canned guava drink.

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Additional Metadata

Item Type: Thesis (Masters)
Subject: Canned fruit juices
Subject: Thermal analysis
Call Number: FSMB 1993 3
Chairman Supervisor: Asbi bin Ali, PhD
Divisions: Faculty of Food Science and Technology
Depositing User: Muizzudin Kaspol
Date Deposited: 23 Feb 2011 03:45
Last Modified: 05 Nov 2012 02:14
URI: http://psasir.upm.edu.my/id/eprint/9826
Statistic Details: View Download Statistic

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