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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Main Authors: Lakshmanan Jaganathan, Rathanam Boopathy
Format: Article
Language:English
Published: Instituto de Tecnologia do Paraná (Tecpar) 1999-01-01
Series:Brazilian Archives of Biology and Technology
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131999000300012
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spelling 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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