Novel Yellow Compounds, Dilysyldipyrrolones A and B, Formed from Xylose and Lysine by the Maillard Reaction
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- SAKAMOTO Junko
- Department of Nutrition and Food Science, Ochanomizu University
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- TAKENAKA Makiko
- National Food Research Institute
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- ONO Hiroshi
- National Food Research Institute
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- MURATA Masatsune
- Department of Nutrition and Food Science, Ochanomizu University
Bibliographic Information
- Other Title
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- Novel yellow compounds, dilysildipyrrolones A and B, formed from xylose and lysine by the Maillard reaction
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Abstract
When a solution containing xylose and L-lysine is heated under weakly acidic conditions, it turns brown by the Maillard reaction. We isolated here two novel yellow compounds from a heated solution containing xylose and lysine, and identified pyrrolyl-methylidene-pyrrolone derivatives named dilysyldipyrrolones A and B. Their chemical structures were elucidated by instrumental analyses as 6-[[1-[(S)-5-amino-1-carboxypentyl]-3-hydroxy-pyrrol-2-yl]-(E)-2-methylidene-5-methyl-1,2H-pyrrol-3-one-1-ly]-(S)-2-amino-hexanoic acid (dilysyldipyrrolone A) and 6-[[1-[(S)-5-amino-5-carboxypentyl]-3-hydroxy-pyrrol-2-yl]-(E)-2-methylidene-5-methyl-1,2H-pyrrol-3-one-1-yl]-(S)-2-amino-hexanoic acid (dilysyldipyrrolone B). These were the major pigments in the heated solution.
Journal
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- Bioscience, Biotechnology, and Biochemistry
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Bioscience, Biotechnology, and Biochemistry 73 (9), 2065-2069, 2009
Japan Society for Bioscience, Biotechnology, and Agrochemistry
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Keywords
Details 詳細情報について
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- CRID
- 1390282681454345984
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- NII Article ID
- 10027545850
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- NII Book ID
- AA10824164
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- ISSN
- 13476947
- 09168451
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- NDL BIB ID
- 10373006
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed