Data/hora: 22/06/2024 03:43:16

Biblioteca(s): | Embrapa Mandioca e Fruticultura.
Data corrente: | 06/11/1995
Data da última atualização: | 06/11/1995
Autoria: | WEBER, B.; MAAS, B.; MOSANDL, A.
Afiliação: | Institut fur Lebensmittelchemie, Biozentrum Johann Wolfgang Goethe-Universitat, Marie-Curie-Strasse 9 D-60493 Frankfurt/Main, Germany.
Título: | Stereoisomeric flavor compounds. 72 Stereoisomeric distribution of some chiral sulfur-containing trace components of yellow passion fruits.
Ano de publicação: | 1995
Fonte/Imprenta: | Journal of Agricultural and Food Chemistry, v.43, n.9, p.2438-2441, 1995.
ISSN: | 0021-8561
Idioma: | Inglês
Conteúdo: | The enantiomeric distribution of cis- and trans-2-methyl-4-propyl-1, 3-oxathiane and 3-mercaptohexyl acetate and butanoate in passion fruit extracts were determined by means of multidimensional gas chromatography (MDGC) using sulfur-selective detection. 4S-configured oxathianes and S-configured 3-mercaptohexyl alkanoates of high enantiomeric puritywere detected. 2,2-Dimethyl-4-propyl-1,3-oxathiane and 3-mercaptohexyl propanoate were used as internal standard components, allowing a quantification of the volatiles investigated. The trace components were found in a range from less than 0.5 to 18 ppb. the results are discussedwith regard to the biosynthesis of these volatiles. Due to the high enantiomeric purities detected, the differentiation between naturally o ccurring flavor compounds and synthetic recemates added to passion fruit products is realized conclusively.
Palavras-Chave: | Chiral sulfur-containing flavor compounds; Enantioselective GC analysis; Multidimensional gas chromatography (MDGC); Sulfurselective detection; Yellow passion fruit.
Categoria do assunto: | --
Registro original: | Embrapa Mandioca e Fruticultura (CNPMF)
Exemplares: | CNPMF - (3506-1) - ADC - AP - -- - 630.51405 -  - 630.51405 - DIS