Heterogeneity of secondary alcohols in brazilian sugar cane spirits from diverse origins and processes of manufacture

Quimica nova

Penteado, José Carlos Pires¹  Masini, Jorge Cesar¹ 

[1] Universidade de São Paulo, São Paulo, Brasil

关键词: sec butanol;    fermentation;    sugar cane.;   

DOI  :  10.1590/S0100-40422009000500024

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

Secondary alcohol concentrations in sugar cane spirits from different origins were determined by gas chromatography. A great variation in the concentration of the secondary alcohols was found in these spirits. Of the 33 brands analyzed, 8 of them were found to be out of conformity with the legislation. Sec butanol, for which the maximum allowed concentration level is 100 mg.L-1 in absolute ethanol, was found within a concentration range between 5 mg.L-1, the limit of quantitation (LQ) and 408 mg.L-1 in absolute ethanol. Sugar cane samples from Salinas, MG, were the only ones that exhibited self similarity because of the low concentrations of n-butanol and n-amylic alcohol (< limit of detectionLD).

【 授权许可】

CC BY