Data/hora: 24/06/2024 11:38:43

Biblioteca(s): | Embrapa Semiárido.
Data corrente: | 08/09/2022
Data da última atualização: | 14/09/2022
Autoria: | WELKE, J. E.; NICOLLI, K. P.; HERNANDES, K. C.; BIASOTO, A. C. T.; ZINI, C. A.
Afiliação: | JULIANE ELISA WELKE, Instituto de Ciência e Tecnologia de Alimentos, Universidade Federal do Rio Grande do Sul; KARINE PRIMIERI NICOLLI, Instituto de Química, Universidade Federal do Rio Grande do Sul; KAROLINA CARDOSO HERNANDES, Instituto de Ciência e Tecnologia de Alimentos, Universidade Federal do Rio Grande do Sul; ALINE TELLES BIASOTO MARQUES, CPATSA; CLAUDIA ALCARAZ ZINI, Instituto de Química, Universidade Federal do Rio Grande do Sul.
Título: | Adaptation of an olfactometric system in a GC-FID in combination with GCxGC/MS to evaluate odor-active compounds of wine.
Ano de publicação: | 2022
Fonte/Imprenta: | Food Chemistry, v. 370, 131004, 2022.
Idioma: | Inglês
Conteúdo: | A step-by-step approach to easily adapt and use a GC-FID as an olfactometer, as well as a detailed description of acquisition and interpretation of olfactometric data by the OSME (from the Greek word for odor, &#8000;&#963;&#956;&#942;) method. A Merlot wine was used to exemplifly this strategy and its volatiles were characterized, rendering 43 volatiles in 1D-GC/MS and 142 in GCxGC/MS. GC-O showed the presence of 24 odor-active compounds and GCxGC/MS indicated aditional 14 odor-active compounds, which were found as coelutions. Six compounds (isoamyl acetate, ethyl octanoate, ethyl decanoate, 3-methylthio-1-propanol, carvone, benzyl alcohol and nonanoic acid) were described in 1D-GC-O analyses as having distinct odors by the same and by different assessors. This fact indicated the presence of coeluting bands, which were resolved by GCxGC/MS. The adapted GC-O in combination with the use of GCxGC/MS may be a tool to more accurate investigation of the odor-active compounds of wine.
Palavras-Chave: | Composto bioativo; Cromatografia gasosa bidimensional abrangente; GC-O; GC/MS; GCxGC/MS; Olfatometria; OSME.
Thesagro: | Aroma; Odor; Uva; Vinho.
Thesaurus Nal: | Bioactive compounds; Grapes.
Categoria do assunto: | X Pesquisa, Tecnologia e Engenharia
Registro original: | Embrapa Semiárido (CPATSA)
Exemplares: | CPATSA - (59992-1) - UPC - AP - DD -  -  -  - DIS