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

被引：38
作者：
Cardoso, DR [1 ]
Lima-Neto, BS
Franco, DW
do Nascimento, RF
机构：
[1] Univ Sao Paulo, Inst Quim Sao Carlos, Dept Quim & Fis Mol, CP-780, BR-13560970 Sao Carlos, SP, Brazil
[2] Univ Fed Ceara, Ctr Ciencias, Dept Quim Analit & Fis Quim, BR-60455900 Fortaleza, Ceara, Brazil
来源：
QUIMICA NOVA | 2003年 / 26卷 / 02期
关键词：
Brazilian sugar cane spirits; pot still; chemical composition; spirits;
D O I：
10.1590/S0100-40422003000200004
中图分类号：
O6 [化学];
学科分类号：
0703 ;
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.
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收藏
页码：165 / 169
页数：5
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