Stevia leaf tea is brewed from Stevia leaf, which has the effects of lowering blood sugar, relieving fatigue and losing weight. The following is the effect of stevia leaf tea I brought you. Let's have a look.
the efficacy of stevia leaf tea
1. Lowering blood sugar: Medical observation shows that stevia leaf has certain antihypertensive effect and can lower blood sugar, so this tea is very suitable for diabetic patients.
2. Eliminating fatigue: Drinking stevia tea regularly can also eliminate fatigue. The stevia tea brewed alone is sweet and can be brewed with other flowers and plants according to personal preference.
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3. lose weight and maintain beauty: stevioside contained in stevia leaves has low calorie and heat resistance, so it can be described as a sugar product without calorie, which can adjust blood sugar, lose weight and maintain beauty. It is a healthy drink suitable for modern young people with low calorie, no carbohydrate and no fat. The soaking method of stevia leaf tea
Material: 5g of stevia leaf.
soaking method:
1. Boil the teacup with boiling water and drain the water to raise the temperature of the tea set so that the temperature of the tea leaves is relatively stable after brewing.
2. Stevia leaf tea belongs to semi-fermented tea, so it is not suitable for boiling water. Therefore, tea leaves can be drunk after being put into a cup and brewed at 8 degrees water temperature for 8-1 minutes, which can not only maintain the tea taste, but also prevent the loss of nutrition. Characters of Stevia leaf tea < P > Character identification This product is mostly broken or shriveled, grass green, and the intact leaves are oblate to broadly lanceolate after flattening, with a length of 4.5-9.5cm and a width of 1.5-3.5cm; The bare end is blunt and the base is wedge-shaped; The middle and upper edges have coarse serrations, and the lower part is full; The main vein of the three veins is obvious, and both sides are pilose; With a short petiole, the leaf blade often descends to the base of the petiole; Thin leather, brittle and fragile. Slight breath and extremely sweet taste.
Microscopic identification of leaf cross-section: Epidermal cells are composed of a series of square-like cells, with a slightly thick outer wall and a waxy base. The stomata of the upper and lower epidermis are indefinite, and there are many in the lower epidermis, and there are glandular hairs composed of multiple cells and non-glandular hairs composed of 5-11 cells, and there are glandular scales in the lower epidermis. The palisade tissue cells are 2-3 rows, most of which are 2-cleft and do not pass through the midvein. Sponge tissue, loosely arranged. The vascular bundle of the main vein is tough outside, with narrow phloem, fiber bands on the outside, xylem vessels arranged radially, and woody parenchyma cells on the inside.
chemical constituents the leaves of this product contain steviolide. Stevioside, stevioside A, B, C, D, E, stevioside A, B, C, D, E, G, H, dulcoside)A, B, and steviol. -sitosterol (? -sitosterol), campesterol, stigmasterol- -D- glucoside (stigmasterol- -D-gluco-side)，? -sitosterol? -D- glucoside (? -sitosterol-? -D-glucoside), and also contains flavonoids and its glycosides: apigenin -7-O-? -D- glucoside (apigenin-7-O-? -D-glucoside), apigenin -4-O- gluco-side, luteolin -7-O- glucoside, kaempferol -3-O- rhamnoside (1). Quercetin -3-O- glucoside, Quercetin -3-O- arabinoside, 5,7,3- trihydroxy -3,6,4-trimethoxyflavone (5,7,3 Pharmacological effects of stevia rebaudiana L.
1. Effects on sugar metabolism; stevia rebaudiana L. inhibited sugar synthesis and oxygen absorption in renal cortex tubules of rats. However, the sweetness components, such as hemlock, have no such effect [1]. After 16 volunteers took the water extract of Stevia rebaudiana leaves for 3 days, their tolerance to glucose increased and their blood sugar level decreased significantly [2]. Serpentine inhibits the effect of atractyloside on energy metabolism. Under the effect of Serpentine, Atractyloside reduces sugar enzymolysis, spermatogenesis, glycogen decomposition and oxygen absorption. The site of action is outside the cell, which may affect the cell membrane transport of popcorn [3].
2. The effect of snake chrysanthemum on vasodilation can reduce blood pressure, increase diuresis and urinary sodium excretion, and increase renal blood flow and glomerular filtration rate in normal or renal hypertensive rats, which is partly caused by arteriolar dilation [4, 5]. CaCl2 _ 2 can obviously weaken this vasodilation effect, suggesting that Serpentine may be a calcium-resistant agent.
3. Effects on mitochondrial enzymes in rat liver. The water extract of Stevia rebaudiana inhibited the activities of the following enzymes, such as oxidative phosphorylase, ATPase, reduced coenzyme I(NADH) oxidase, succinate acid oxidase, succinyl deaminase, L- glutamic acid deaminase and so on [6].