LEPTOSPERIN

Leptosperin
Names
	IUPAC name Methyl 3,5-dimethoxy-4-[3,4,5-trihydroxy-6-[[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxymethyl]oxan-2-yl]oxybenzoate
Identifiers
3D model ( JSmol)	Interactive image;
ChemSpider	30900649;
PubChem CID	90442030;
	InChI InChI=1S/C22H32O15/c1-31-9-4-8(20(30)33-3)5-10(32-2)19(9)37-22-18(29)16(27)14(25)12(36-22)7-34-21-17(28)15(26)13(24)11(6-23)35-21/h4-5,11-18,21-29H,6-7H2,1-3H3/t11-,12-,13-,14-,15+,16+,17-,18-,21-,22+/m1/s1 Key: YSIIUTBDRZJOBX-GISOMYDASA-N ;
	SMILES COc1cc(cc(c1O[C@H]2[C@@H]([C@H]([C@@H]([C@H](O2)CO[C@H]3[C@@H]([C@H]([C@@H]([C@H](O3)CO)O)O)O)O)O)O)OC)C(=O)OC;
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Leptosperin (originally but no longer "leptosin") is a bioactive component of Mānuka honey. It is the gentiobiose glycoside of syringic acid methyl ester. It is named for the genus Leptospermum, the shrubs from which bees harvest nectar to make this type of honey.^[1] This bioactive component is the source of antibacterial property of Manuka honey^[2] or other Leptospermum species derived honey.^[3]

Leptosperin content can be used as a marker for the quality of the honey.^[4]

References

^ Kato, Yoji; Umeda, Natsuki; Maeda, Asuna; Matsumoto, Daiki; Kitamoto, Noritoshi; Kikuzaki, Hiroe (4 April 2012). "Identification of a Novel Glycoside, Leptosin, as a Chemical Marker of Manuka Honey". Journal of Agricultural and Food Chemistry. 60 (13): 3418–3423. doi: 10.1021/jf300068w.
^ Kato, Yoji; Kawai, Masaki; Kawai, Shota; Okano, Yayako; Rokkaku, Natsumi; Ishisaka, Akari; Murota, Kaeko; Nakamura, Toshiyuki; Nakamura, Yoshimasa; Ikushiro, Shinichi (2 October 2019). "Dynamics of the Cellular Metabolism of Leptosperin Found in Manuka Honey". Journal of Agricultural and Food Chemistry. 67 (39): 10853–10862. doi: 10.1021/acs.jafc.9b03894.
^ Bong, Jessie; Prijic, Gordana; Braggins, Terry J.; Schlothauer, Ralf C.; Stephens, Jonathan M.; Loomes, Kerry M. (1 January 2017). "Leptosperin is a distinct and detectable fluorophore in Leptospermum honeys". Food Chemistry. 214: 102–109. doi: 10.1016/j.foodchem.2016.07.018. ISSN 1873-7072. PMID 27507454.
^ Hegazi, Nesrine M.; Elghani, Ghada E. Abd; Farag, Mohamed A. (2022). "The super-food Manuka honey, a comprehensive review of its analysis and authenticity approaches". Journal of Food Science and Technology. 59 (7): 2527–2534. doi: 10.1007/s13197-021-05181-7. PMC 9206949. PMID 35734106.

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[1] Kato, Yoji; Umeda, Natsuki; Maeda, Asuna; Matsumoto, Daiki; Kitamoto, Noritoshi; Kikuzaki, Hiroe (4 April 2012). "Identification of a Novel Glycoside, Leptosin, as a Chemical Marker of Manuka Honey". Journal of Agricultural and Food Chemistry. 60 (13): 3418–3423. doi: 10.1021/jf300068w.

[2] Kato, Yoji; Kawai, Masaki; Kawai, Shota; Okano, Yayako; Rokkaku, Natsumi; Ishisaka, Akari; Murota, Kaeko; Nakamura, Toshiyuki; Nakamura, Yoshimasa; Ikushiro, Shinichi (2 October 2019). "Dynamics of the Cellular Metabolism of Leptosperin Found in Manuka Honey". Journal of Agricultural and Food Chemistry. 67 (39): 10853–10862. doi: 10.1021/acs.jafc.9b03894.

[3] Bong, Jessie; Prijic, Gordana; Braggins, Terry J.; Schlothauer, Ralf C.; Stephens, Jonathan M.; Loomes, Kerry M. (1 January 2017). "Leptosperin is a distinct and detectable fluorophore in Leptospermum honeys". Food Chemistry. 214: 102–109. doi: 10.1016/j.foodchem.2016.07.018. ISSN 1873-7072. PMID 27507454.

[4] Hegazi, Nesrine M.; Elghani, Ghada E. Abd; Farag, Mohamed A. (2022). "The super-food Manuka honey, a comprehensive review of its analysis and authenticity approaches". Journal of Food Science and Technology. 59 (7): 2527–2534. doi: 10.1007/s13197-021-05181-7. PMC 9206949. PMID 35734106.

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Names

IUPAC name Methyl 3,5-dimethoxy-4-[3,4,5-trihydroxy-6-[[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxymethyl]oxan-2-yl]oxybenzoate
Identifiers
3D model ( JSmol)	Interactive image
ChemSpider	30900649
PubChem CID	90442030
InChI InChI=1S/C22H32O15/c1-31-9-4-8(20(30)33-3)5-10(32-2)19(9)37-22-18(29)16(27)14(25)12(36-22)7-34-21-17(28)15(26)13(24)11(6-23)35-21/h4-5,11-18,21-29H,6-7H2,1-3H3/t11-,12-,13-,14-,15+,16+,17-,18-,21-,22+/m1/s1^Y Key: YSIIUTBDRZJOBX-GISOMYDASA-N^Y
SMILES COc1cc(cc(c1O[C@H]2[C@@H]([C@H]([C@@H]([C@H](O2)CO[C@H]3[C@@H]([C@H]([C@@H]([C@H](O3)CO)O)O)O)O)O)O)OC)C(=O)OC
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references