Optimisation of ultrasound-assisted extraction of pectinase enzyme from guava (Psidium guajava) peel: Enzyme recovery, specific activity, temperature and storage stability

Amid, Mehrnoush and Murshid, Fara Syazana and Manap, Mohd Yazid and Sarker, Md. Zaidul Islam (2016) Optimisation of ultrasound-assisted extraction of pectinase enzyme from guava (Psidium guajava) peel: Enzyme recovery, specific activity, temperature and storage stability. Preparative Biochemistry and Biotechnology, 46 (1). pp. 91-99. ISSN 1082-6068 E-ISSN 1532-2297 (In Press)

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Abstract

This study aimed to investigate the effects of the ultrasound-assisted extraction conditions on the yield, specific activity, temperature, and storage stability of the pectinase enzyme from guava peel. The ultrasound variables studied were sonication time (10–30 min), ultrasound temperature (30–50°C), pH (2.0–8.0), and solvent-to-sample ratio (2:1 mL/g to 6:1 mL/g). The main goal was to optimize the ultrasound-assisted extraction conditions to maximize the recovery of pectinase from guava peel with the most desirable enzyme-specific activity and stability. Under the optimum conditions, a high yield (96.2%), good specific activity (18.2 U/mg), temperature stability (88.3%), and storage stability (90.3%) of the extracted enzyme were achieved. The optimal conditions were 20 min sonication time, 40°C temperature, at pH 5.0, using a 4:1 mL/g solvent-to-sample ratio. The study demonstrated that optimization of ultrasound-assisted process conditions for the enzyme extraction could improve the enzymatic characteristics and yield of the enzyme.

Item Type:	Article (Journal)
Additional Information:	6605/43488
Uncontrolled Keywords:	Enzymatic properties, extraction, guava peel, pectinase, ultrasound-assisted process, yield
Subjects:	Q Science > Q Science (General) T Technology > T Technology (General)
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Pharmacy > Department of Pharmaceutical Technology
Depositing User:	Professor Md. Zaidul Islam Sarker
Date Deposited:	23 Jun 2015 08:32
Last Modified:	17 Oct 2017 15:39
URI:	http://irep.iium.edu.my/id/eprint/43488

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