In-house direct cELISA for determining aflatoxin B1 in Thai corn and peanuts
To overcome the problem of aflatoxins (AF) in Thai foods, a sensitive in-house direct cELISA using monoclonal antibody (mAb) was established and compared with a commercial ELISA kit and thin-layer chromatography for the determination of AFB1 levels in corn and peanuts. Among eight in-house mAbs (AF1...
Saved in:
Main Authors: | , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
2014
|
Online Access: | http://www.scopus.com/inward/record.url?eid=2-s2.0-0142125348&partnerID=40&md5=e77a30132dbbb5642dc0fff36bf9c7d6 http://cmuir.cmu.ac.th/handle/6653943832/2919 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Institution: | Chiang Mai University |
Language: | English |
id |
th-cmuir.6653943832-2919 |
---|---|
record_format |
dspace |
spelling |
th-cmuir.6653943832-29192014-08-30T02:25:33Z In-house direct cELISA for determining aflatoxin B1 in Thai corn and peanuts Lipigorngoson S. Limtrakul P. Suttajit M. Yoshizawa T. To overcome the problem of aflatoxins (AF) in Thai foods, a sensitive in-house direct cELISA using monoclonal antibody (mAb) was established and compared with a commercial ELISA kit and thin-layer chromatography for the determination of AFB1 levels in corn and peanuts. Among eight in-house mAbs (AF1-8), AF5 was used in the direct cELISA owing to its excellent specificity and sensitivity with the detection limit of 4 μg kg-1. The recovery of AFB1 spiked at 5, 10, 20, 40 and 80 μg kg-1 ranged from 88.1 to 99.5 %. Correlation coefficients of the ELISA with the commercial ELISA kit and thin-layer chromatography were 0.912 and 0.802 for corn, and 0.941 and 0.832 for peanuts, respectively (p < 0.05). The cost per sample was estimated to be about 16 times lower than the commercial ELISA kit. Subsequently, the in-house direct cELISA was successfully applied to screen the contamination of AFB1 in Thai corn and peanuts. Mean levels of AFB1 (per cent positive were 73 μg kg-1 (85.7%) in corn and 102 μg kg-1 (67.9%) in peanuts, for which 46.4% of both foods were above the Thailand regulation limit (20 μg kg-1). 2014-08-30T02:25:33Z 2014-08-30T02:25:33Z 2003 Article 0265203X 10.1080/0265203031000156060 13129779 FACOE http://www.scopus.com/inward/record.url?eid=2-s2.0-0142125348&partnerID=40&md5=e77a30132dbbb5642dc0fff36bf9c7d6 http://cmuir.cmu.ac.th/handle/6653943832/2919 English |
institution |
Chiang Mai University |
building |
Chiang Mai University Library |
country |
Thailand |
collection |
CMU Intellectual Repository |
language |
English |
description |
To overcome the problem of aflatoxins (AF) in Thai foods, a sensitive in-house direct cELISA using monoclonal antibody (mAb) was established and compared with a commercial ELISA kit and thin-layer chromatography for the determination of AFB1 levels in corn and peanuts. Among eight in-house mAbs (AF1-8), AF5 was used in the direct cELISA owing to its excellent specificity and sensitivity with the detection limit of 4 μg kg-1. The recovery of AFB1 spiked at 5, 10, 20, 40 and 80 μg kg-1 ranged from 88.1 to 99.5 %. Correlation coefficients of the ELISA with the commercial ELISA kit and thin-layer chromatography were 0.912 and 0.802 for corn, and 0.941 and 0.832 for peanuts, respectively (p < 0.05). The cost per sample was estimated to be about 16 times lower than the commercial ELISA kit. Subsequently, the in-house direct cELISA was successfully applied to screen the contamination of AFB1 in Thai corn and peanuts. Mean levels of AFB1 (per cent positive were 73 μg kg-1 (85.7%) in corn and 102 μg kg-1 (67.9%) in peanuts, for which 46.4% of both foods were above the Thailand regulation limit (20 μg kg-1). |
format |
Article |
author |
Lipigorngoson S. Limtrakul P. Suttajit M. Yoshizawa T. |
spellingShingle |
Lipigorngoson S. Limtrakul P. Suttajit M. Yoshizawa T. In-house direct cELISA for determining aflatoxin B1 in Thai corn and peanuts |
author_facet |
Lipigorngoson S. Limtrakul P. Suttajit M. Yoshizawa T. |
author_sort |
Lipigorngoson S. |
title |
In-house direct cELISA for determining aflatoxin B1 in Thai corn and peanuts |
title_short |
In-house direct cELISA for determining aflatoxin B1 in Thai corn and peanuts |
title_full |
In-house direct cELISA for determining aflatoxin B1 in Thai corn and peanuts |
title_fullStr |
In-house direct cELISA for determining aflatoxin B1 in Thai corn and peanuts |
title_full_unstemmed |
In-house direct cELISA for determining aflatoxin B1 in Thai corn and peanuts |
title_sort |
in-house direct celisa for determining aflatoxin b1 in thai corn and peanuts |
publishDate |
2014 |
url |
http://www.scopus.com/inward/record.url?eid=2-s2.0-0142125348&partnerID=40&md5=e77a30132dbbb5642dc0fff36bf9c7d6 http://cmuir.cmu.ac.th/handle/6653943832/2919 |
_version_ |
1681419950278836224 |