A kind of tea and preparation method thereof
Technical field
The present invention relates to tea beverage, particularly the tea beverage of making of globe artichoke.
Background technology
Globe artichoke (Cynara scolymus L.), another name arithoke, foreign lily, French lily, lotus lily.The perennial large-scale draft of composite family, plant be up to 1.5 meters, and leaf is big, the pinniform drastic crack, and head on living diameter at stem summer is cephaloid about 15 centimetres, and the avette imbricate that is of phyllary is arranged the petal edible.
Studies show that leaf of Cynara scolymus L contains the various active composition, (comprise chlorogenic acid (chlorogenic acid), cinarine (cynarin), 1 as the coffee mesitoyl quinine acid derivative, 5 dicaffeoylquinic acids, 3,5 dicaffeoylquinic acids etc.) and flavone compound (comprising cyanidenon (cynaroside), cynaropicrin (cynaropicrin), luteolin (luteolin) etc.).The Chinese herbal medicine medicinal ingredient studies show that mentioned component has non-oxidizability, has hepatic cholagogic, reduces the cholesterol effect.Through high pressure liquid chromatographic analysis, the leaf of Cynara scolymus L flooding extract contains a certain amount of active component equally, as chlorogenic acid (chlorogenic acid) and cinarine (cynarin).People are the fruit of edible globe artichoke only, and the blade of globe artichoke is given it up but all the time.
Summary of the invention
The object of the invention provides a kind of new source of tea beverage, promptly is prepared into tea with leaf of Cynara scolymus L, drinks as tea beverage.
The preparation method of leaf of Cynara scolymus L tea of the present invention has two kinds:
Method one: after at first the globe artichoke fresh leaves being cleaned, dry with its air dry or under 60 ℃-80 ℃ temperature then; Pulverize through pulverizer again, and then further dry, make globe artichoke tea flour, with globe artichoke tea flour packing, make the globe artichoke tea bag at last.
Method two: at first adopt the bright leaf of 10%-95% alcohol extract globe artichoke or cured leaf 2-12 hour, filter and abandon residue then; Again ethanol extract is concentrated final vacuum drying or spray-drying through reducing pressure, obtain dry globe artichoke powder at last, packing is standby.
Globe artichoke tea with said method is prepared can fully keep the contained nutritional labeling of globe artichoke, and people can be as drinking tea, and water is brewing to be drunk.Because the intrinsic nutritional labeling of globe artichoke, therefore, drink globe artichoke tea can be with playing a role in health care.
The specific embodiment
Embodiment 1, get the petal globe artichoke fresh leaves 100g of harvest time, after cleaning, its air dry to water content about 30%, under 60 ℃ of-80 ℃ of temperature, is Tumblied Dry then, pulverize through pulverizer again, make the globe artichoke powder, i.e. the tea powder.Get 10g and put into room temperature water and boiling water, the about 98-100 of water temperature ℃ was soaked 20 minutes, filtered; Chlorogenic acid in the high-performance liquid chromatogram determination clear liquid and cinarine content, measurement result such as table 1:
Table 1
Become component mg/g
Chlorogenic acid 1.3
Cinarine 0.6
High-efficient liquid phase chromatogram determining condition:
Chromatogram is annotated: ODS 4.6 * 250mm
Phase flows: acetonitrile/formic acid
Detector: UV-detector
Wavelength: 330nm
Temperature: 25 ℃
Embodiment 2, get the petal globe artichoke fresh leaves 500g of harvest time, after cleaning, air dry is about 30% to water content, then drying machine drying under 60 ℃ of-80 ℃ of temperature.Adopted 75% alcohol extract cured leaf 2-12 hour, and filtered then and abandon residue, ethanol extract concentrates the final vacuum drying through reducing pressure, obtaining dry powder soaked 20 minutes with room temperature water and boiling water, filter, chlorogenic acid in the high-performance liquid chromatogram determination clear liquid and cinarine content, measurement result such as table 2:
Table 2
Component content mg/g
Chlorogenic acid 4.2
Cinarine 13.2
High-efficient liquid phase chromatogram determining condition:
Chromatogram is annotated: ODS 4.6 * 250mm
Phase flows: acetonitrile/formic acid
Detector: UV-detector
Wavelength: 330nm
Temperature: 25 ℃