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Title: Preparation of reusable enzyme strip for determination of serum triglyceride
Authors: Minakshi
Pundir, C S
Keywords: Triglycerides
alkylamine glass bead
plastic strip
Issue Date: Sep-2005
Publisher: CSIR
IPC CodeA61K38/43
Abstract: Lipase, glycerol kinase (GK), glycerol-3-phosphate oxidase and peroxidase were co-immobilized onto alkylamine glass beads affixed on a plastic strip with a conjugation yield of 80.0 mg/g support and 57.41% retention of specific activity. The enzyme showed an increase in optimum pH, incubation temperature, energy of activation and time of incubation, but decrease in Km and Vmax. A method for determination of serum triglycerides was developed, employing strip bound enzymes. The minimum detection limit of the method was 0.61 mM/L. The recovery of added triglycerides was 82.2%. Within and between assay coefficient of variation were < 3.1 and < 14.2 respectively. A good correlation (r=0.973) was found between triglycerides value obtained by commercial enzymatic colourimetric method and present method. The strip provided 100 reuses of co-immobilized enzymes with ease.
Page(s): 539-542
ISSN: 0975-0991 (Online); 0971-457X (Print)
Source:IJCT Vol.12(5) [September 2005]

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