Separation and purification method for erodium stephanianum willd element in erodium stephanianums and application of separated highly-purified erodium stephanianum willd element
A purification method, the technology of Zhonglaohe, which is applied in chemical instruments and methods, preparations for skin care, preparation of sugar derivatives, etc., to achieve the effect of high efficiency and simple method
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Embodiment 1
[0023] Cultivation of guary grass:
[0024] In March-April when the mid-day temperature is about 15 degrees, sow 3-5 seeds of geranium in the cups for planting, and transplant the 6 cm seedlings that grow after 4 weeks to the plastic-covered cups. In the field of film (130 centimeters in width, 30 centimeters in height, and 25 meters in length), there are 6 plants in each column, and 15 centimeters between plants are planted. After planting, 5-6 plants were picked every 2 weeks, and the weight and content of geranine in each part of each plant were measured. The results are shown in Table 1. According to the results in Table 1, among the various parts, the leaves contain the highest content of geranin. In addition, the most fresh weight is harvested after 11 weeks after planting. It is the best time, and the leaves contain the highest active ingredients. .
[0025] Table 1 The weight and content of geranidin (%) of fresh geranium after planting
[0026]
Embodiment 2
[0028] Separation and purification of geranitin in geranium:
[0029] Take 2.5kg of geranium harvested 11 weeks after planting, 50L of water and 100g-300g of citric acid in a stainless steel container (50L), heat at 60-80°C for 1-3 hours while stirring, and cool to 25°C. The dross was removed with a wire mesh (30 mesh), and 50 L of the extract was obtained by filtration with a filter paper filter (pore diameter: 1 μm). This extract is processed through a synthetic resin (Mitsubishi Chemical, Diamond Ion HP-20, 2000ml) method. Activation (2000ml of 4%NaOH water is passed through at a speed of 33ml / min, and washed with 6000ml of water. Then, 4%H 2 SO 4 2000ml of water is passed through at a speed of 33ml / min, and then washed with 6000ml of water), and 50L of extract is put into a HP-20 type chromatographic column, and after passing through at a speed of 33ml / min, it is washed with 6000ml of water wash. The dissolution method of geranitin containing active ingredients in ger...
Embodiment 3
[0032] Melanin production inhibiting effect test
[0033] We all know that the main cause of spots and freckles is melanin, and the formation of melanin through ultraviolet rays is a way for the skin to protect itself. On the other hand, the reasons for the formation of spots and freckles have also been clarified. Melanin is formed by the conversion of tyrosine L-DOPA into DOPA quinone and the condensation of DOPA quinone. Associated with these two transformation reactions is tyrosinase. Pine and other authors have published (M.MATUKI et.al.YAKUGAKU ZASSHI128(8)1203-1207,2008) the report that glutathione can prevent the formation of melanin by hindering the condensation reaction of DOPA quinone. In the present invention, it can be confirmed that L-DOPA is transformed into DOPA quinone by tyrosinase, and then DOPA quinone is condensed to become melanin, which also shows that high-purity geranium can hinder the condensation of DOPA quinone and thus hinder melanin form.
[003...
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