Influence of the pot still material on the chemical composition of Brazilian sugar cane spirit: part II

Química Nova

Cardoso, Daniel R.¹  Lima-Neto, Benedito S.¹  Franco, Douglas W.¹  Nascimento, Ronaldo F. do¹  Universidade Federal do Ceará, Fortaleza¹  Universidade de São Paulo¹ 

关键词: Brazilian sugar cane spirits;    pot still;    chemical composition;    spirits.;   

DOI  :  10.1590/S0100-40422003000200004

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

The quantitative chemical analysis of the Brazilian sugar cane spirit distilled from glass column packaged with copper, stainless steel, aluminum sponge, or porcelain balls is described. The main chemical compounds determined by gas chromatography coupled with flame ionization (FID) and flame photometric (FPD) detectors and liquid chromatography coupled with diode array detector are aldehydes, ketones, carboxylic acids, alcohols, esters and dimethylsulfite (DMS). The spirits produced either in columns filled with copper or aluminum pot still exhibits the lowest DMS contents but the higher sulfate and methanol contents, whereas spirits produced in stainless steel or porcelain showed higher DMS concentration and lower teors of sulfate ion and methanol. These observations are coherent with DMS oxidation to sulfate, with methanol as by product, in the presence of either copper or aluminum.

【 授权许可】

Unknown