查詢結果分析
相關文獻
- 乙醇與氯化鉀沈澱對紅藻膠劃分組成之影響
- 臺灣土地銀行勸銀舊廈與前美國駐臺北領事館的結構鑑定方式探究
- 百香果殼主要花青素及其抗氧化性之研究
- Effects of Carrageenan on Fecal Mucinase Activity and Serum Cholesterol Level in Rats
- 山竹果殼主要花青素之研究
- 臺北國際金融中心新建工程331地震後結構體現況安全鑑定
- 利用反應曲面法對紅藻膠高壓凝膠作用的探討
- Synthesis, Transport, Magnetization and Structural Characterizations of Tl-Ca-Ba-Cu-O Specimens with To=123K and Tonset=155K
- Effects of Different Levels of Carrageenan on Colonic Mucin Degradation and Serum Cholesterol Level in Rats
- 紅藻膠抽取條件之探討
頁籤選單縮合
題名 | 乙醇與氯化鉀沈澱對紅藻膠劃分組成之影響=Effects of Ethanol and Potassium Chloride Precipitation on the Compositions of Carrageenan Fractions |
---|---|
作者 | 賴鳴鳳; 呂政義; | 書刊名 | 食品科學 |
卷期 | 24:5 1997.10[民86.10] |
頁次 | 頁520-530 |
分類號 | 463 |
關鍵詞 | 紅藻膠; 酒精沈澱; 氯化鉀劃分; 結構鑑定; Carrageenan; Ethanol precipitation; Potassium chloride fractionation; Structural characterization; |
語文 | 中文(Chinese) |
中文摘要 | 藉以13C-核磁共振(NMR)圖譜與傅立葉轉換紅外線光譜(FTIR)鑑定市售κ-,ι-和λ-紅藻膠經乙醇沈澱與 KCl 劃分後之組成變化,進而瞭解這些純化法之效果。結果顯示,KCl 劃分法的純化效果優於酒精沈澱法。利用多種 KCl 濃度(0.125-26M KCl)對κ-紅藻膠進行逐步劃分時,可去除ι-、μ-、λ-,ω-或β-紅藻膠以及 fiorideml starch等可能成份,並得單純之κ-紅藻膠於2.6M KCl沈澱物中。ι-和λ-紅藻膠兩者在0.125-2.6M KCl 溶液幾乎皆可溶。此外,市售λ-紅藻膠的 0 125 M KCl 可溶性區分具有明顯的Θ-紅藻膠結構特徵。 |
英文摘要 | The structures of ethanol precipitates and KC1 fractions of commercial κ-, ι- and λ-carrageenans were examined with 13C-NMR and FTIR spectra in order to clarify the purification effects of ethanol and KCI. The results indicate that the purification effect of KCI fractionation is superior to ethanol precipitation. Using a stepwise fractionation of 0.125-2.6 M KCI, ι-, μ-, λ-, ω- and β-carrageenans along with floridean starch can both be removed from the original κ-carrageenan sample, ressulting in a purifiedκ- carrageenans in the 2.6 M KCI insoluble. Both ι- and λ- carrageenans have high solubilty in 0.125-2.6 M KCI solutions. In addition, the 0.125M KCI soluble fraction of commercial λ-carrageenan sample indicates the structural characteristics of θ-carrageenan. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。