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

Quimica nova

Nascimento, Ronaldo F. do¹  Cardoso, Daniel R.²  Lima-Neto, Benedito S.²  Franco, Douglas W.² 

[1] Universidade Federal do Ceará, Fortaleza;Universidade de São Paulo

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 quantitativechemical analysis of the Brazilian sugar cane spirit distilled from glass columnpackaged with copper, stainless steel, aluminum sponge, or porcelain balls isdescribed. The main chemical compounds determined by gas chromatography coupledwith flame ionization (FID) and flame photometric (FPD) detectors and liquidchromatography coupled with diode array detector are aldehydes, ketones, carboxylicacids, alcohols, esters and dimethylsulfite (DMS). The spirits produced eitherin columns filled with copper or aluminum pot still exhibits the lowest DMScontents but the higher sulfate and methanol contents, whereas spirits producedin stainless steel or porcelain showed higher DMS concentration and lower teorsof sulfate ion and methanol. These observations are coherent with DMS oxidationto sulfate, with methanol as by product, in the presence of either copper oraluminum.

【 授权许可】

CC BY