Affiliations 

  • 1 a Department of Food Technology, Faculty of Food Science and Technology , Universiti Putra Malaysia , Serdang , Selangor , Malaysia
  • 2 c Department of Pharmaceutical Technology, Faculty of Pharmacy , International Islamic University Malaysia, Kuantan Campus, Bandar Indera Mahkota , Kuantan , Pahang , Malaysia
Prep Biochem Biotechnol, 2016;46(1):91-9.
PMID: 25844554 DOI: 10.1080/10826068.2015.1031396

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.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.