Method for preparing high gamma-aminobutyric acid instant tea
A technology of aminobutyric acid and instant tea, which is applied in the direction of tea extraction and pre-extraction tea treatment, etc., can solve the problems of failure to recycle, increase costs, waste of resources, etc., improve appearance quality, reduce waste water discharge, and reduce damage The effect of action
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Embodiment 1
[0044] Embodiment 1, a kind of method for preparing high γ-aminobutyric acid instant tea, selects the tea tree fresh leaf (tea tree variety " water ancient tea ") of one bud and two leaves as tea raw material, carries out following technological steps successively:
[0045] 1), put 1000g of tea tree fresh leaves with one bud and two leaves into a stainless steel basin with a diameter of 35cm and a depth of 20cm, and add 1000g of glutamic acid aqueous solution with a mass concentration of 2.5%, so that the tea leaves are evenly drenched;
[0046] 2) Put the tea leaves soaked in the glutamic acid aqueous solution obtained in the above step 1) together with the stainless steel container in a vacuum drying oven, at -0.1mpa Anaerobic treatment under high temperature conditions for 30h; separation, so as to respectively obtain tea leaves after vacuum anaerobic treatment and glutamic acid aqueous solution after vacuum anaerobic treatment;
[0047] 3) Put the tea after vacuum anaerobi...
Embodiment 2
[0051] Embodiment 2, a method for preparing high γ-aminobutyric acid instant tea, select the fresh leaves of tea tree (tea tree variety "Fuding Dabai tea", 50% of one bud and two leaves, 50% of one bud and three leaves) as the tea raw material, Carry out the following process steps in sequence:
[0052] 1), put 1000g of the above-mentioned tea tree fresh leaves into a stainless steel basin with a diameter of 45cm and a depth of 30cm, and add 4000g of glutamic acid aqueous solution with a mass concentration of 0.25%, so that the tea leaves are evenly drenched;
[0053] 2) Put the tea soaked in the glutamic acid aqueous solution obtained in the above step 1) together with the stainless steel container in a vacuum drying oven, and perform anaerobic treatment for 0.5h under the vacuum condition of -0.05ma; separate, so as to obtain vacuum anaerobic Treated tea leaves and glutamic acid aqueous solution after vacuum anaerobic treatment;
[0054] 3) Put the tea after vacuum anaerobi...
Embodiment 3
[0058] Embodiment 3, a kind of method for preparing high γ-aminobutyric acid instant tea, select the tea tree fresh leaf of one bud four, five leaves (tea tree variety " water ancient tea ", one bud four leaves 50%, one bud five leaves 50% %) as tea raw material, the following steps are carried out successively:
[0059] 1), put 1000g of the above-mentioned tea tree fresh leaves into a stainless steel basin with a diameter of 35cm and a depth of 25cm, and add 2000g of glutamic acid aqueous solution with a mass concentration of 0.1%, so that the tea leaves are evenly drenched;
[0060] 2) Put the tea soaked in glutamic acid aqueous solution obtained in the above step 1) together with the stainless steel container in a vacuum drying oven, and anaerobically treat it for 8 hours under the vacuum condition of -0.08mpa; separate, so as to obtain vacuum anaerobic treatment respectively Glutamic acid aqueous solution after tea leaves and vacuum anaerobic treatment;
[0061] 3) Put th...
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