Peter Brooks , Asmaa Boufridi , Georgia Moore , Linda Pappalardo
{"title":"The fluorescence of MM1, leptosperin in Australian and New Zealand Manuka Honeys","authors":"Peter Brooks , Asmaa Boufridi , Georgia Moore , Linda Pappalardo","doi":"10.1016/j.meafoo.2024.100192","DOIUrl":null,"url":null,"abstract":"<div><p>The Manuka Marker 1 fluorescence of Australian and New Zealand Manuka honeys at <sub>ex</sub>270-<sub>em</sub>365 nm correlates to their leptosperin content. Non-Manuka honey varieties did not fluoresce at these wavelengths.</p><p>A strong correlation R<sup>2</sup> = 0.96 was found between the fluorescence response and leptosperin content by HPLC of Manuka honeys. The highest concentrations of leptosperin were observed in Australian Manuka honey with a maximum value of 2031 mg/kg in comparison to New Zealand Manuka honey 729 mg/kg. In this study, no correlation was observed between leptosperin and methylglyoxal content.</p></div>","PeriodicalId":100898,"journal":{"name":"Measurement: Food","volume":"15 ","pages":"Article 100192"},"PeriodicalIF":0.0000,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772275924000595/pdfft?md5=ff1cf14cf755e530e4cd4566e0ab6385&pid=1-s2.0-S2772275924000595-main.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Measurement: Food","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2772275924000595","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
The Manuka Marker 1 fluorescence of Australian and New Zealand Manuka honeys at ex270-em365 nm correlates to their leptosperin content. Non-Manuka honey varieties did not fluoresce at these wavelengths.
A strong correlation R2 = 0.96 was found between the fluorescence response and leptosperin content by HPLC of Manuka honeys. The highest concentrations of leptosperin were observed in Australian Manuka honey with a maximum value of 2031 mg/kg in comparison to New Zealand Manuka honey 729 mg/kg. In this study, no correlation was observed between leptosperin and methylglyoxal content.
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