Determination of Pyrolytic Products of Extract of Raisin by Py-GC-MS
摘 要
50g葡萄干用70%乙醇溶液300 mL在80 ℃回流提取3 h,提取两次,过滤提取物,滤液减压浓缩至干。残渣用5200裂解仪在400 ℃,500 ℃,600 ℃,800 ℃下处理,在各裂解温度下得到的裂解产物导入仪器进行气相色谱-质谱分析。结果表明:主要裂解产物是糠醛、呋喃甲醇、5-甲基糠醛、5-羟甲基-2-呋喃甲醛、2,3-二氢-3,5-二羟基-6-甲基-4H-吡喃酮,这些裂解产物是赋予卷烟具有独特香味和较好口感的重要物质。
Abstract
50g of raisin were extracted twice by refluxing with 300 mL of 70% ethanol at 80 ℃ for 3 h. The extracts were filtered and the filtrate was evaporated to dryness under reduced pressure. The residue was treated with Pyroprobe 5200 at 400 ℃, 500 ℃, 600 ℃ and 800 ℃, the pyrolytic products obtained at each of the pyrolytic tempuratures were introduced into the instrument and analyzed by GC-MS. It was shown that the main pyrolytic products obtained were furfural, 2-furanmethanol, 5-methyl-2-furancarboxaldehyde, 5-hydroxymethyl-2-furancarboxaldehyde, and 2,3-dihydro-3,5-dihydroxy-6-methyl-4H-pyran-4-one. These pyrolysates are the important substances to make cigarettes to have distinctive fragrance and better taste.
中图分类号 O657.63
所属栏目 工作简报
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收稿日期 2011/3/23
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备注赵国玲(1975-),女,河南焦作人,博士,工程师,主要从事烟草香原料研发。
引用该论文: ZHAO Guo-ling,YANG Hua-wu,LU Hong-bing,ZHONG Ke-jun. Determination of Pyrolytic Products of Extract of Raisin by Py-GC-MS[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2012, 48(5): 556~558
赵国玲,杨华武,卢红兵,钟科军. 热裂解气相色谱-质谱法测定葡萄干提取物的热裂解产物[J]. 理化检验-化学分册, 2012, 48(5): 556~558
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参考文献
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