Data/hora: 29/05/2024 05:52:55

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