Thermostabilisation of human serum butyrylcholinesterase for detection of its inhibitors in water and biological fluids
The ability of gelatine-trehalose to convert the normally fragile, dry human serum BChE into a thermostable enzyme and its use in the detection of cholinesterase inhibitors in water and biological fluids is described. Gelatine or trehalose alone is unable to protect the dry enzyme against exposure t...
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Instituto de Tecnologia do Paraná (Tecpar)
1999-01-01
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doaj-50965d9b295e48efae3cf6e90125f8222020-11-24T22:23:10ZengInstituto de Tecnologia do Paraná (Tecpar)Brazilian Archives of Biology and Technology1516-89131678-43241999-01-0142334334810.1590/S1516-89131999000300012Thermostabilisation of human serum butyrylcholinesterase for detection of its inhibitors in water and biological fluidsLakshmanan JaganathanRathanam BoopathyThe ability of gelatine-trehalose to convert the normally fragile, dry human serum BChE into a thermostable enzyme and its use in the detection of cholinesterase inhibitors in water and biological fluids is described. Gelatine or trehalose alone is unable to protect the dry enzyme against exposure to high temperature, while a combination of gelatine and trehalose were able to protect the enzyme activity against prolonged exposure to temperature as high as +50°C. A method for rapid, simple and inexpensive means of screening for cholinesterase inhibitors such as carbamates and organophosphates in water, vegetables and human blood has been developed.<br>A capacidade da gelatina-trehalose em converter a frágil BChE do soro humano em uma enzima termoestável e seu uso na descoberta de inibidores de colinesterase em água e fluidos biológicos é apresentado. A Gelatina ou trehalose são incapazes de proteger a enzima seca BchE do soro humano contra exposição a elevadas temperaturas, enquanto que uma combinação de gelatina e trehalose são capazes de proteger a atividade de enzima contra exposição prolongada a temperaturas elevadas e da ordem de 50° C. Um método barato, simples e rápido de screening para inibidores de colinesterase tal como carbamatos e organofosfatos em água, verduras e sangue humano foi desenvolvido.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131999000300012Butyrylcholinesterasecarbamatescholinesterasegelatineorganophosphorustrehalose |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Lakshmanan Jaganathan Rathanam Boopathy |
spellingShingle |
Lakshmanan Jaganathan Rathanam Boopathy Thermostabilisation of human serum butyrylcholinesterase for detection of its inhibitors in water and biological fluids Brazilian Archives of Biology and Technology Butyrylcholinesterase carbamates cholinesterase gelatine organophosphorus trehalose |
author_facet |
Lakshmanan Jaganathan Rathanam Boopathy |
author_sort |
Lakshmanan Jaganathan |
title |
Thermostabilisation of human serum butyrylcholinesterase for detection of its inhibitors in water and biological fluids |
title_short |
Thermostabilisation of human serum butyrylcholinesterase for detection of its inhibitors in water and biological fluids |
title_full |
Thermostabilisation of human serum butyrylcholinesterase for detection of its inhibitors in water and biological fluids |
title_fullStr |
Thermostabilisation of human serum butyrylcholinesterase for detection of its inhibitors in water and biological fluids |
title_full_unstemmed |
Thermostabilisation of human serum butyrylcholinesterase for detection of its inhibitors in water and biological fluids |
title_sort |
thermostabilisation of human serum butyrylcholinesterase for detection of its inhibitors in water and biological fluids |
publisher |
Instituto de Tecnologia do Paraná (Tecpar) |
series |
Brazilian Archives of Biology and Technology |
issn |
1516-8913 1678-4324 |
publishDate |
1999-01-01 |
description |
The ability of gelatine-trehalose to convert the normally fragile, dry human serum BChE into a thermostable enzyme and its use in the detection of cholinesterase inhibitors in water and biological fluids is described. Gelatine or trehalose alone is unable to protect the dry enzyme against exposure to high temperature, while a combination of gelatine and trehalose were able to protect the enzyme activity against prolonged exposure to temperature as high as +50°C. A method for rapid, simple and inexpensive means of screening for cholinesterase inhibitors such as carbamates and organophosphates in water, vegetables and human blood has been developed.<br>A capacidade da gelatina-trehalose em converter a frágil BChE do soro humano em uma enzima termoestável e seu uso na descoberta de inibidores de colinesterase em água e fluidos biológicos é apresentado. A Gelatina ou trehalose são incapazes de proteger a enzima seca BchE do soro humano contra exposição a elevadas temperaturas, enquanto que uma combinação de gelatina e trehalose são capazes de proteger a atividade de enzima contra exposição prolongada a temperaturas elevadas e da ordem de 50° C. Um método barato, simples e rápido de screening para inibidores de colinesterase tal como carbamatos e organofosfatos em água, verduras e sangue humano foi desenvolvido. |
topic |
Butyrylcholinesterase carbamates cholinesterase gelatine organophosphorus trehalose |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131999000300012 |
work_keys_str_mv |
AT lakshmananjaganathan thermostabilisationofhumanserumbutyrylcholinesterasefordetectionofitsinhibitorsinwaterandbiologicalfluids AT rathanamboopathy thermostabilisationofhumanserumbutyrylcholinesterasefordetectionofitsinhibitorsinwaterandbiologicalfluids |
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