Analysis of Vitamin Components in Leaves,Stems and Tea Products of Rosemarinus officinalis L.
Objective:To analyze the vitamin components and contents of different varieties and parts of Rosemarinus officinalis L.,as well as green tea and black tea of Rosemarinus officinalis L..Method:High performance liquid chromatography and high-performance liquid chromatography-mass spectrometry were used to determine the vitamin components in the leaves and stems of two varieties of Rosemarinus officinalis L..Using small-leaved Rosemarinus officinalis L.leaves as raw materials,Rosemarinus officinalis L.green tea and black tea were developed,and the vitamin components and contents of Rosemarinus officinalis L.green tea and black tea were determined.Result:The 11 vitamins showed a good linear relationship,and the vitamin E content was higher in Rosemarinus officinalis L.leaves and the lowest vitamin B1 content in Rosemarinus officinalis L.leaves and Rosemarinus officinalis L.tea.Rosemarinus officinalis L.leaves contain more vitamins than stems.After the Rosemarinus officinalis L.leaves were processed into green tea,the vitamin content decreased;after processing into black tea,although the content of some vitamins increases,the content of most vitamins decreases.Conclusion:This study can provide a basis for optimizing the processing technology of Rosemarinus officinalis L.tea and analyzing the causes and rules of index changes,and can be used to guide the later production and processing of Rosemarinus officinalis L.tea.
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