Giannetti, Vanessa published the artcileFlavour component analysis by HS-SPME/GC-MS and chemometric modeling to characterize Pilsner-style Lager craft beers, Related Products of esters-buliding-blocks, the main research area is beer flavor ethyl hexanoate HS SPME GC MS.
An HS-SPME/GC-MS (Head Space-Solid Phase Micro Extraction/Gas Chromatog.-Mass Spectrometry) method was developed and applied to 79 beers (craft and industrial products) selected among the most common brands of mass-produced beer to evaluate their flavor profile. 111 volatiles were identified in the samples. PLS-DA (Partial Least Squares-Discriminant Anal.) was used to classify beers according to their different production methods. Good classification results both in calibration and cross-validation were obtained enabling a good separation between beer categories with high prediction accuracy. In order to find a reduced number of volatiles which could be relevant to discriminate the two beer typologies, VIP (Variable Importance in Projection) scores were calculated; on the basis of these results it was possible to identify a panel of 13 substances contributing the most to the observed differentiation (2-Methylpropyl 2-methylpropanoate, 3-Methylbutyl acetate, 7-Methyl-3-methylideneocta-1,6-diene (β-Myrcene), 3-Methylbutan-1-ol, Et hexanoate, Hexan-1-ol, 1,1-Dimethyl-4-methylenehexahydro-1H-cyclopenta[c]furan, Et octanoate, 3,7-Dimethylocta-1,6-dien-3-ol (β-Linalool), Et decanoate, 2-Phenylethyl acetate, 2-Phenylethanol, Octanoic acid). The aim was to characterize the craft beers to differentiate them from other competing and lower quality products. The proposed approach could be a useful tool to verify whether samples comply with the statements reported on label concerning production process set out by product specification, at the same time providing a more chem.-oriented definition of the peculiar characteristics of craft beers.
Microchemical Journal published new progress about Aldehydes Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 106-32-1 belongs to class esters-buliding-blocks, name is Ethyl octanoate, and the molecular formula is C10H20O2, Related Products of esters-buliding-blocks.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics