| Title: | Glycosidically bound aroma compounds and impact odorants of four strawberry varieties |
| Author(s): | Ubeda C; San-Juan F; Concejero B; Callejon RM; Troncoso AM; Morales ML; Ferreira V; Hernandez-Orte P; |
| Address: | "Area de Nutricion y Bromatologia, Facultad de Farmacia, Universidad de Sevilla, C/P. Garcia Gonzalez 2, Seville, Spain. c_ubeda@us.es" |
| ISSN/ISBN: | 1520-5118 (Electronic) 0021-8561 (Linking) |
| Abstract: | "This paper reports the determination of glycosidically bound aroma compounds and the olfactometric analysis in four strawberry varieties (Fuentepina, Camarosa, Candonga and Sabrina). Different hydrolytic strategies were also studied. The results showed significant differences between acid and enzymatic hydrolysis. In general terms, the greater the duration of acid hydrolysis, the higher was the content of norisoprenoids, volatile phenols, benzenes, lactones, Furaneol, and mesifurane. A total of 51 aglycones were identified, 38 of them unreported in strawberry. Olfactometric analyses revealed that the odorants with higher modified frequencies were Furaneol, gamma-decalactone, ethyl butanoate, ethyl hexanoate, ethyl 3-methylbutanoate, diacetyl, hexanoic acid, and (Z)-1,5-octadien-3-one. This last compound, described as geranium/green/pepper/lettuce (linear retention index = 1378), was identified for the first time. Differences with regard to fruity, sweet, floral, and green aroma characters were observed among varieties. In Candonga and Fuentepina, the green character overpowered the sweet. In the other two strawberry varieties sweet attributes were stronger than the rest" |
| Keywords: | "Chromatography, Gas Fragaria/*chemistry Fruit/*chemistry Gas Chromatography-Mass Spectrometry Glycosides/*metabolism Hydrogen-Ion Concentration Hydrolysis Odorants/*analysis Smell Species Specificity Volatile Organic Compounds/analysis/metabolism;" |
| Notes: | "MedlineUbeda, Cristina San-Juan, Felipe Concejero, Belen Callejon, Raquel M Troncoso, Ana M Morales, M Lourdes Ferreira, Vicente Hernandez-Orte, Purificacion eng Comparative Study Research Support, Non-U.S. Gov't 2012/06/01 J Agric Food Chem. 2012 Jun 20; 60(24):6095-102. doi: 10.1021/jf301141f. Epub 2012 Jun 11" |
