Determination of sphingoid bases from hydrolyzed glucosylceramide in rice and wheat by online post-column high-performance liquid chromatography with O-phthalaldehyde derivatization
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- Goto Hirofumi
- Japan Food Research Laboratories, Nagoya Branch Mimasaka University
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- Nishikawa Keiko
- Japan Food Research Laboratories, Nagoya Branch
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- Shionoya Noriko
- Japan Food Research Laboratories, Nagoya Branch
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- Taniguchi Makoto
- Mimasaka University
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- Igarashi Tomoji
- Japan Food Research Laboratories, Nagoya Branch
書誌事項
- タイトル別名
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- Determination of sphingoid bases from hydrolyzed glucosylceramide in rice and wheat by online post-column high-performance liquid chromatography with <i>O</i>-phthalaldehyde derivatization
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抄録
We developed a determination method for sphingoid bases using online post-column high-performance liquid chromatography (HPLC) with O-phthalaldehyde (OPA) derivatization. Good separation was achieved using a reversed-phase column and eluting with 50% acetonitrile containing formic acid and heptafluorobutyric acid. Using these conditions, an excellent linearity (R2 > 0.999) was achieved using standard solutions of sphinganine (d18:0), sphingosine (d18:14t), 4-hydroxy-sphinganine (t18:0), glucosylsphingosine (glc-d18:14t), and galactosylsphingosine (gal-d18:14t). Plant glucosylceramides were hydrolyzed with 1 M aqueous HCl in methanol for 18 h at 90°C, followed by extraction of sphingoid bases with diethyl ether in preparation for analysis using the proposed HPLC conditions. The glc-d18:14t standard was also hydrolyzed and analyzed by HPLC using the same procedure, and the d18:14t peak obtained from the hydrolyzed glc-d18:14t standard was used as a reference for calculation. We also confirmed the applicability of this method to the analysis of sphingoid bases in rice and wheat, obtaining relative standard deviations of 8.0% for rice and 4.6% for wheat. The recoveries of spiked rice and wheat samples were 104% and 106%, respectively. Our proposed method enables the straightforward determination of sphingoid bases without expensive facilities, employing fluorescence detection of OPA derivatives.
収録刊行物
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- Journal of Oleo Science
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Journal of Oleo Science 61 (12), 681-688, 2012
公益社団法人 日本油化学会
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詳細情報 詳細情報について
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- CRID
- 1390001204093143936
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- NII論文ID
- 130004435954
- 40019490407
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- NII書誌ID
- AA11503337
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- COI
- 1:STN:280:DC%2BC3s7nslaitQ%3D%3D
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- ISSN
- 13473352
- 13458957
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- NDL書誌ID
- 024093720
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- PubMed
- 23196868
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可