IIUM Repository

TAL - a source of bacterial endotoxin detector in liquid biological samples

John, Akbar and Yunus, Kamaruzzaman and Khan Chowdhury, Ahmed Jalal and Kassim, Zaleha (2012) TAL - a source of bacterial endotoxin detector in liquid biological samples. International Food Research Journal, 19 (2). pp. 423-425. ISSN 19854668 (P), 22317546 (O)

[img] PDF (TAL - A Source of Bacterial Endotoxin Detector in Liquid Biological Samples ) - Published Version
Restricted to Registered users only

Download (413kB) | Request a copy


Endotoxins (chemically known as Lipopolysaccharide) from gram-negative microorganisms initiates clot formation in blood when it is accidentally encountered by horseshoe crab blood stream. This property was extensively studied by various researchers as a result Limulus Amebocyte Lysate (LAL) test was established. The LAL tests in general, 3 to 300 times more sensitive than the United States Pharmacopeial (USP) rabbit pyrogen test method. It is apparent that major differences among the LAL preparations lie in the area of sensitivity. Differences, up to 100-fold, exist in the sensitivity of the various LAL preparations to the same endotoxin. Based on the above perspective, a portable Kit (Endo sensor) was developed to detect the presence of bacterial endotoxin in liquid biological samples using Tachypleus Amebocyte Lysate (TAL) as a source. Sensitivity of the Kit was determined using various concentrations of prepared endotoxin standards and pyrogen free water samples. It was observed that Endo sensor could detect up to nano gram level of endotoxin in liquid biological samples which could be expressed in (EU/ml) and the labeled sensitivity of the lysated product was 0.125 EU/ ml. The gel clotting principle method was utilized for the detection of bacterial endotoxin in liquid biological samples.

Item Type: Article (Journal)
Additional Information: 5410/24964
Uncontrolled Keywords: Endotoxins, Tachypleus gigas, Tachypleus Amebocyte Lysate (TAL), labeled sensitivity and endotoxin unit
Subjects: Q Science > Q Science (General)
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Science > Department of Biotechnology
Depositing User: Professor Dr. Kamaruzzaman Yunus
Date Deposited: 08 Aug 2012 11:29
Last Modified: 07 Dec 2017 13:52
URI: http://irep.iium.edu.my/id/eprint/24964

Actions (login required)

View Item View Item


Downloads per month over past year