Please use this identifier to cite or link to this item:
https://hdl.handle.net/10316/7781
DC Field | Value | Language |
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dc.contributor.author | Pauliukaite, Rasa | - |
dc.contributor.author | Zhylyak, Gleb | - |
dc.contributor.author | Citterio, Daniel | - |
dc.contributor.author | Spichiger-Keller, Ursula | - |
dc.date.accessioned | 2009-02-17T10:32:52Z | - |
dc.date.available | 2009-02-17T10:32:52Z | - |
dc.date.issued | 2006 | en_US |
dc.identifier.citation | Analytical and Bioanalytical Chemistry. 386:2 (2006) 220-227 | en_US |
dc.identifier.uri | https://hdl.handle.net/10316/7781 | - |
dc.description.abstract | Abstract An amperometric biosensor has been developed for measurement of Umami, or the taste based on the amount of l-glutamate, in tomato foods. The biosensor is based on an enzyme-mediator system in which l-glutamate oxidase is used for biochemical oxidation of l-glutamate and a tetrafulvalene-tetracyanoquinodimethane (TTF-TCNQ) paste, prepared from the mixture of TTF-TCNQ salt, graphite powder, and silicone oil, serves as the mediator. The limit of detection, calculated by use of a four-parameter logistic model, was 0.05 mmol L-1, and the limit of quantification was 0.15 mmol L-1. The correlation coefficient (R 2) was 0.990 and the relative standard deviation was no more than 1% (n=5). The response time (t 95) was 20–50 s, depending on concentration. The repeatability of the sensor was better than 5% (n=10). The sensor developed was stable for more than ten days. | en_US |
dc.language.iso | eng | eng |
dc.rights | openAccess | eng |
dc.title | l -Glutamate biosensor for estimation of the taste of tomato specimens | en_US |
dc.type | article | en_US |
dc.identifier.doi | 10.1007/s00216-006-0656-2 | en_US |
item.fulltext | Com Texto completo | - |
item.grantfulltext | open | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.openairetype | article | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
Appears in Collections: | FCTUC Química - Artigos em Revistas Internacionais |
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