期刊
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
卷 69, 期 38, 页码 11406-11416出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jafc.1c03621
关键词
cornflower honey; lumichrome; fluorescence; TLC; HPLC-PDA; HPLC-FLD; UHPLC-MS/MS; HS-SPME-GC/MS
资金
- European Union [EU] [1308/2013]
- Ministries of Agriculture of Brandenburg, Saxony-Anhalt, Saxony
- Senate of Berlin
Identification of single-flower honey relies on the method of melissopalynology, which uses pollen carried by forager bees in floral nectar for authentication. Lumichrome is a suitable marker substance for cornflower honey, along with other nonvolatile and volatile compounds for specific differentiation.
According to legislation, unifloral honeys are characterized by their organoleptic, physicochemical, and microscopic properties. Melissopalynology is the established method for identifying the pollen taken up with the floral nectar by forager bees and is used for authentication of the nectar sources in honey. For cornflower honey (Centaurea cyanus), the pollen input does not correlate with the nectar input, because the nectar is produced both in floral and in extrafloral nectaries. The well-known cornflower marker lumichrome has now also been detected in the extrafloral nectar. Therefore, lumichrome is a suitable marker substance for cornflower honey. Four different methods for the sole analysis of lumichrome in honey were validated and compared. Studies over nine years have shown that unifloral cornflower honey should contain approximately 35 mg/kg lumichrome. For a further differentiated cornflower honey specific verification, other nonvolatile compounds like 7-carboxylumichrome and volatiles, such as 3,4-dihydro-3-oxoedulan I and 3,4-dihydro-3-oxoedulan II, should be analyzed. This enables a more specific accuracy for the classification of unifloral cornflower honey.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据