Method for separating and extracting dendrobium polysaccharides and dendrobine from dendrobium
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A technology of dendrobium polysaccharides and dendrobine, applied in the direction of organic chemistry, can solve the problems of poor efficiency and low extraction rate, and achieve the effect of mild conditions and high extraction volume
Pending Publication Date: 2021-12-03
南京大花滩生物科技有限公司
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[0003] Dendrobium polysaccharide and dendrobine can be extracted from the existing dendrobium, but the extraction rate of dendrobium polysaccharide and dendrobine in the prior art is not high, and the efficiency is poor. Therefore, we propose a method for separating and extracting dendrobium polysaccharide and dendrobine from dendrobium method to solve the above problems
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[0025] The present invention will be further explained below in conjunction with specific embodiments.
[0026] refer to figure 1 , embodiment one
[0027] A method for separating and extracting dendrobium polysaccharides and dendrobine from dendrobium is proposed in the present embodiment, comprising the following steps:
[0028] S1: Raw material processing, pretreatment of Dendrobium, first kill the dendrobium, then dry it at 65°C for 35 minutes, and then use a grinder to crush the dried dendrobium, passing through 45 mesh Sieve to obtain the dendrobium powder for subsequent use;
[0029] S2: raw material purification, adding petroleum ether at 75°C, the ratio of dendrobium powder to petroleum ether is 1g:5ml, reflux extraction for 1.8h, and then heating the dendrobium powder at a temperature of 115°C, filtering off the foam on the surface of the dendrobium powder Evaporate the solvent, finally add 95% ethanol and acetone, filter after reflux extraction for 1.15h, evapora...
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Abstract
The invention discloses a method for separating and extracting dendrobium polysaccharides and dendrobine from dendrobium, which comprises the following steps: S1, treating raw materials, and pretreating dendrobium; S2, purifying the raw materials; S3, treating a purification solution; S4, conditioning the purification solution; S5, separating the purification solution; S6, preparing dendrobium polysaccharides; and S7, preparing dendrobine, namely treating the raw materials in the step S1, firstly performing fixation on dendrobium moniliforme, then drying the dendrobium moniliforme at the temperature of 60-80 DEG C for 30-50 minutes, then crushing the dried dendrobium moniliforme by adopting a crusher, and sieving the crushed dendrobium moniliforme with a 30-50-mesh sieve to obtain dendrobium moniliforme powder for later use, and specifically treating the raw materials in the step S2, namely adding petroleum ether at the temperature of 70-85 DEG C, controlling the ratio of the dendrobium powder to the petroleum ether to be 1g: (4-6) ml, and carrying out reflux extraction for 1.25-2 h. According to the method, the dendrobium powder is prepared into the solution, then the solution is processed layer by layer, the Sevag reagent is improved, the separated solution can be respectively prepared into dendrobium polysaccharides and dendrobine, and the extraction amount is relatively high.
Description
technical field [0001] The invention relates to the technical field of dendrobium, in particular to a method for separating and extracting dendrobium polysaccharide and dendrobine from dendrobium. Background technique [0002] Dendrobium, also known as Immortal Dendrobium Orchid Rhyme, Immortal Grass, Resurrection Grass, Ziying Xianzhu, Chlorophytum, Linlan, Bansheng, etc.; the stem is upright, fleshy and thick, slightly flattened cylindrical, 10-60 cm long, and as thick as 1.3 cm; medicinal plant, sweet, light and slightly salty in nature and flavor, cold, and returns to the stomach, kidney, and lung meridian; nourishing the stomach and promoting body fluid, nourishing yin and clearing heat; used for yin injury and body fluid deficiency, dry mouth, polydipsia, lack of food, retching, and deficiency after illness Hot, dark and unclear; Dendrobium flowers are elegant, exquisite and lovely, bright in color and fragrant, and are known as one of the "four major ornamental foreig...
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