Determination of water content in Brazilian honeybee-collected pollen by Karl Fischer titration
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório do Instituto de Tecnologia de Alimentos |
Texto Completo: | http://repositorio.ital.sp.gov.br/jspui/handle/123456789/598 |
Resumo: | This paper assesses the performance of a chemical method based on the Karl Fischer titration to determine the water content in samples of dehydrated honeybee-collected pollen. The following analysis parameters were investigated: extraction temperature, particle size, reaction time, and weight of a dried pollen sample. After optimization, the method was used to determine the water content of 154 samples of dried honeybee-collected pollen from different geographical regions of Brazil. The Karl Fischer titration method, performed using a solvent mixture of methanol and n-octanol (1:1 v/v) at 50 C on pollen particles 600 mm in size produced the best results. Mean values for water content of the 154 samples of dried honeybee-collected pollen from 12 Brazilian regions ranged from 3% to 9%. |
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Determination of water content in Brazilian honeybee-collected pollen by Karl Fischer titrationBee pollenWater contentKarl Fischer titrationThis paper assesses the performance of a chemical method based on the Karl Fischer titration to determine the water content in samples of dehydrated honeybee-collected pollen. The following analysis parameters were investigated: extraction temperature, particle size, reaction time, and weight of a dried pollen sample. After optimization, the method was used to determine the water content of 154 samples of dried honeybee-collected pollen from different geographical regions of Brazil. The Karl Fischer titration method, performed using a solvent mixture of methanol and n-octanol (1:1 v/v) at 50 C on pollen particles 600 mm in size produced the best results. Mean values for water content of the 154 samples of dried honeybee-collected pollen from 12 Brazilian regions ranged from 3% to 9%.Morgano, Marcelo A.; et al.2023-01-30T18:18:26Z2023-01-30T18:18:26Z2011info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfFood Control, Kidlington, v. 222, n. 10, p. 1604-1608, out./2011.http://repositorio.ital.sp.gov.br/jspui/handle/123456789/598reponame:Repositório do Instituto de Tecnologia de Alimentosinstname:Instituto de Tecnologia de Alimentos (ITAL)instacron:ITALenginfo:eu-repo/semantics/openAccess2023-01-30T18:18:26Zoai:http://repositorio.ital.sp.gov.br:123456789/598Repositório InstitucionalPUBhttp://repositorio.ital.sp.gov.br/oai/requestbjftsec@ital.sp.gov.br || bjftsec@ital.sp.gov.bropendoar:2023-01-30T18:18:26Repositório do Instituto de Tecnologia de Alimentos - Instituto de Tecnologia de Alimentos (ITAL)false |
dc.title.none.fl_str_mv |
Determination of water content in Brazilian honeybee-collected pollen by Karl Fischer titration |
title |
Determination of water content in Brazilian honeybee-collected pollen by Karl Fischer titration |
spellingShingle |
Determination of water content in Brazilian honeybee-collected pollen by Karl Fischer titration Morgano, Marcelo A.; et al. Bee pollen Water content Karl Fischer titration |
title_short |
Determination of water content in Brazilian honeybee-collected pollen by Karl Fischer titration |
title_full |
Determination of water content in Brazilian honeybee-collected pollen by Karl Fischer titration |
title_fullStr |
Determination of water content in Brazilian honeybee-collected pollen by Karl Fischer titration |
title_full_unstemmed |
Determination of water content in Brazilian honeybee-collected pollen by Karl Fischer titration |
title_sort |
Determination of water content in Brazilian honeybee-collected pollen by Karl Fischer titration |
author |
Morgano, Marcelo A.; et al. |
author_facet |
Morgano, Marcelo A.; et al. |
author_role |
author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Morgano, Marcelo A.; et al. |
dc.subject.none.fl_str_mv |
|
dc.subject.por.fl_str_mv |
Bee pollen Water content Karl Fischer titration |
topic |
Bee pollen Water content Karl Fischer titration |
description |
This paper assesses the performance of a chemical method based on the Karl Fischer titration to determine the water content in samples of dehydrated honeybee-collected pollen. The following analysis parameters were investigated: extraction temperature, particle size, reaction time, and weight of a dried pollen sample. After optimization, the method was used to determine the water content of 154 samples of dried honeybee-collected pollen from different geographical regions of Brazil. The Karl Fischer titration method, performed using a solvent mixture of methanol and n-octanol (1:1 v/v) at 50 C on pollen particles 600 mm in size produced the best results. Mean values for water content of the 154 samples of dried honeybee-collected pollen from 12 Brazilian regions ranged from 3% to 9%. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011 2023-01-30T18:18:26Z 2023-01-30T18:18:26Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
|
dc.identifier.uri.fl_str_mv |
Food Control, Kidlington, v. 222, n. 10, p. 1604-1608, out./2011. http://repositorio.ital.sp.gov.br/jspui/handle/123456789/598 |
identifier_str_mv |
Food Control, Kidlington, v. 222, n. 10, p. 1604-1608, out./2011. |
url |
http://repositorio.ital.sp.gov.br/jspui/handle/123456789/598 |
dc.language.none.fl_str_mv |
|
dc.language.iso.fl_str_mv |
eng |
language_invalid_str_mv |
|
language |
eng |
dc.rights.none.fl_str_mv |
|
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
|
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
|
publisher.none.fl_str_mv |
|
dc.source.none.fl_str_mv |
reponame:Repositório do Instituto de Tecnologia de Alimentos instname:Instituto de Tecnologia de Alimentos (ITAL) instacron:ITAL |
instname_str |
Instituto de Tecnologia de Alimentos (ITAL) |
instacron_str |
ITAL |
institution |
ITAL |
reponame_str |
Repositório do Instituto de Tecnologia de Alimentos |
collection |
Repositório do Instituto de Tecnologia de Alimentos |
repository.name.fl_str_mv |
Repositório do Instituto de Tecnologia de Alimentos - Instituto de Tecnologia de Alimentos (ITAL) |
repository.mail.fl_str_mv |
bjftsec@ital.sp.gov.br || bjftsec@ital.sp.gov.br |
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1798311816734965760 |