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C-prolinylquercetins from the yellow cocoon shell of the silkworm, Bombyx mori.
Phytochemistry. 2006 Mar; 67(6):579-83.P

Abstract

Two flavonoids containing the l-proline moiety, 6-C-[(2S,5S)-prolin-5-yl] quercetin (prolinalin A) and 6-C-[(2S,5R)-prolin-5-yl] quercetin (prolinalin B), were isolated from the cocoon shell of the silkworm, Bombyx mori. Their structural elucidation was achieved by application of acid hydrolysis and spectroscopic methods. These compounds were not found in the leaves of mulberry (Morus alba L.), the host plant of the silkworm, suggesting that the flavonoids are metabolites of the insect. This is the first time that flavonoids with an amino acid moiety have been found as naturally occurring compounds.

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Authors+Show Affiliations

Hirayama C
National Institute of Agrobiological Sciences, 1-2 Owashi, Tsukuba, Ibaraki 305-8634, Japan. hirayam@nias.affrc.go.jp
Ono H
No affiliation info available
Tamura Y
No affiliation info available
Nakamura M
No affiliation info available

MeSH

AnimalsBombyxColorMagnetic Resonance SpectroscopyMolecular StructureProlineQuercetin

Pub Type(s)

Journal Article

Language

eng

PubMed ID

16430932

Citation

Hirayama, Chikara, et al. "C-prolinylquercetins From the Yellow Cocoon Shell of the Silkworm, Bombyx Mori." Phytochemistry, vol. 67, no. 6, 2006, pp. 579-83.
Hirayama C, Ono H, Tamura Y, et al. C-prolinylquercetins from the yellow cocoon shell of the silkworm, Bombyx mori. Phytochemistry. 2006;67(6):579-83.
Hirayama, C., Ono, H., Tamura, Y., & Nakamura, M. (2006). C-prolinylquercetins from the yellow cocoon shell of the silkworm, Bombyx mori. Phytochemistry, 67(6), 579-83.
Hirayama C, et al. C-prolinylquercetins From the Yellow Cocoon Shell of the Silkworm, Bombyx Mori. Phytochemistry. 2006;67(6):579-83. PubMed PMID: 16430932.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - C-prolinylquercetins from the yellow cocoon shell of the silkworm, Bombyx mori. AU - Hirayama,Chikara, AU - Ono,Hiroshi, AU - Tamura,Yasumori, AU - Nakamura,Masatoshi, Y1 - 2006/01/23/ PY - 2005/09/06/received PY - 2005/11/26/accepted PY - 2006/1/25/pubmed PY - 2006/5/4/medline PY - 2006/1/25/entrez SP - 579 EP - 83 JF - Phytochemistry JO - Phytochemistry VL - 67 IS - 6 N2 - Two flavonoids containing the l-proline moiety, 6-C-[(2S,5S)-prolin-5-yl] quercetin (prolinalin A) and 6-C-[(2S,5R)-prolin-5-yl] quercetin (prolinalin B), were isolated from the cocoon shell of the silkworm, Bombyx mori. Their structural elucidation was achieved by application of acid hydrolysis and spectroscopic methods. These compounds were not found in the leaves of mulberry (Morus alba L.), the host plant of the silkworm, suggesting that the flavonoids are metabolites of the insect. This is the first time that flavonoids with an amino acid moiety have been found as naturally occurring compounds. SN - 0031-9422 UR - https://www.unboundmedicine.com/medline/citation/16430932/C_prolinylquercetins_from_the_yellow_cocoon_shell_of_the_silkworm_Bombyx_mori_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0031-9422(05)00673-4 DB - PRIME DP - Unbound Medicine ER -