کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7586968 | 1492078 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Leptosperin is a distinct and detectable fluorophore in Leptospermum honeys
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Leptosperin is a distinct and detectable fluorophore in Leptospermum honeys Leptosperin is a distinct and detectable fluorophore in Leptospermum honeys](/preview/png/7586968.png)
چکیده انگلیسی
New Zealand manuka (Leptospermum scoparium) honey exhibits two unique fluorescence signatures that distinguish it from other honey types. One of these is the MM1 fluorescence marker (270-365 nm excitation-emission) which we show is due to a Leptospermum nectar-derived compound, leptosperin. Synthetic or honey-purified leptosperin not only displayed an identical fluorescence spectrum, but supplementation of leptosperin into clover or artificial honeys generated the MM1 fluorescence signature. There was a quenching effect of the honey matrix on leptosperin fluorescence but otherwise leptosperin was chemically stable over prolonged storage at 37 °C. Leptosperin was also present in the woody-fruited Australian Leptospermum species at elevated concentrations but virtually absent in Leptospermum subtenue suggesting its elevated expression developed following the mid-Miocene separation of the genus. These findings suggest that fluorescence spectroscopy could offer a rapid and high-throughput screening method for identification of Leptospermum honeys using the MM1 fluorescence marker.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 214, 1 January 2017, Pages 102-109
Journal: Food Chemistry - Volume 214, 1 January 2017, Pages 102-109
نویسندگان
Jessie Bong, Gordana Prijic, Terry J. Braggins, Ralf C. Schlothauer, Jonathan M. Stephens, Kerry M. Loomes,