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頁籤選單縮合
題名 | Detection of Molasses-spirit in Rice-spirits from TK-8 and TCS-10 by SNIF-NMR Method=利用SNIF-NMR鑑定臺式米酒是否添加糖蜜酒精 |
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作者 | 謝昌衛; 王秀如; 張傑明; 柯文慶; Hsieh, Chang-wei; Wang, Hsiu-ju; Chang, Chieh-ming; Ko, Wen-ching; |
期刊 | 藥物食品分析 |
出版日期 | 20050900 |
卷期 | 13:3 2005.09[民94.09] |
頁次 | 頁251-255+292 |
分類號 | 412.37 |
語文 | eng |
關鍵詞 | 米酒; 乙醇; 氘; 特定位置天然同位素核磁共振儀法; Rice-spirit; Ethyl alcohol; Deuterium; SNIF-NMR; |
中文摘要 | 本篇研究目的在於利用SNIF-NMR方法來檢測台式米酒中是否有添加食用糖蜜酒精。我們採用兩種台灣最常見的稻米包括台粳八號(Taikeng 8)、台中秈十號(Taichung sen 10)發酵而成的米酒與台糖公司的食用糖蜜酒精作為對照,比較三者的SNIF-NMR參數,包含乙醇分子中第一個碳位置天然氘含量的比值〔(D/H)I〕、第二個碳位置天然氘含量的比值〔(D/H)II〕以及兩者的相互關係(R值)。實驗結果顯示出台粳八號、台中秈十號所產生的米酒與由糖蜜產生的食用酒精其三種參數(D/H)I、(D/H)II、R值皆有顯著差異(p < 0.05)。而在純米酒添加糖蜜酒精的摻假模組試驗中,只有(D/H)I 值呈現出顯著的相關性,其值與糖蜜酒精添加量表現出良好線性關係(R2 > 0.96),故(D/H)I參數可作為純米酒添加糖蜜酒精的指標。 |
英文摘要 | The objective of this study was to identify the origin of edible alcohol usually added in Taiwanese rice-spirits by using deuterium nuclear magnetic resonance (SNIF-NMR method). Rice-spirits labeled TK-8, TCS-10 were made from two rice varieties, Taikeng 8 and Taichung sen 10, whereas molasses-spirit labeled MS was obtained from Taiwan Sugar Corporation. The proportion of ethanol molecules monodeuterated on the methyl site (D/H)I and methylene site (D/H)II, and the ratio R between the intensities of methyl and methylene signals in deuterium spectra were significantly different among TK-8, TCS-10, and MS. Of the three indices, only (D/H)I linearly (R2 > 0.96) increased with addition of MS in both TK-8 and TCS-10. Therefore, (D/H)I was an index for the identification of pure rice-spirits mixed with ethanol originated from molasses. |
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