An extract capable of assisting in lowering blood sugar and blood fat and its preparation method
An extract and a blood lipid-lowering technology are applied in the field of preparation of extracts extracted from partridge tea, which can assist in lowering blood sugar and blood lipid, and achieve the effects of safe and stable quality, pleasant taste, and simple and controllable production process.
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Embodiment 1
[0016] Example 1 Preparation of Extract
[0017] A large amount of partridge tea leaves were collected, carefully selected, and naturally dried in the shade. After crushing, 15 kg of dry leaves were crushed and sieved through a 40-mesh sieve. They were divided into three batches of 5 kg per batch and decocted in water at a volume ratio of 1:10. Batch samples were decocted 3 times, 2 h each time.
[0018] Combining water and decocting the obtained extract, filtering to obtain the filtrate, and concentrating the filtrate to a paste, which is 2.1 kg of partridge tea extract.
[0019] Take 10 kg of macroporous adsorption resin type D101, soak in an appropriate amount of 2% sodium hydroxide for 2 h, wash off with a large amount of distilled water until the pH is neutral, add 95% ethanol to soak for 1 h, wash off, and set aside.
[0020] Take 2 kg of water to extract the extract, dissolve it with an appropriate amount of water, slowly pour it into a macroporous adsorption resin chr...
Embodiment 2
[0025] Example 2 Experiment of lowering blood sugar in mice
[0026] Observe the effect of the extract of the present invention on the blood sugar level of diabetic mice.
[0027] Tested drug: partridge tea auxiliary hypoglycemic extract was prepared from the above-mentioned Example 1, and was respectively prepared into a solution with a concentration of 500 mg / L in water.
[0028] Modeling agent: Streptozocin (STZ), Sigma Company. Use 0.1 mol / L, pH 4.2 sodium citrate buffer to freshly prepare (operate on ice) into a solution with a concentration of 13.0 mg / mL.
[0029] Animals: Kunming white mice 20±2 g, SPF grade, male, provided by the Animal Center of the Institute of Medicinal Botany, Chinese Academy of Medical Sciences. Adaptive feeding was carried out for 7 days in the animal room under the conditions of temperature 22°C and relative humidity 60%.
[0030] Animal grouping: the mice were randomly divided into 7 groups, blank control group, model control group, and the ...
Embodiment 3
[0039] Example 3 Blood lipid lowering experiment
[0040] Observe the effect of the extract of the present invention on the cholesterol level of mice with hyperlipidemia.
[0041] Tested drug: partridge tea auxiliary hypoglycemic extract was prepared from the above-mentioned Example 1, and was respectively prepared into a solution with a concentration of 500 mg / L in water.
[0042] Composition of high-fat feed: basic feed (flour 25, cornmeal 20, oatmeal 25, bean cake powder 12, fish meal 8, bone meal 2, yeast powder 2, refined salt 1) 83.4%, egg yolk powder 10%, lard 5%, sodium cholate 0.5%, ,0.1% Methimazole, 1% Cholesterol.
[0043] Animals: Kunming white mice 22±3 g, SPF grade, male, provided by the Animal Center of the Institute of Medicinal Botany, Chinese Academy of Medical Sciences. Adaptive feeding was carried out for 7 days in the animal room under the conditions of temperature 22°C and relative humidity 60%.
[0044] Animal grouping: the mice were randomly divided...
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