Method for extracting selenium-rich tea polysaccharide by using ultrahigh pressure
A technology of selenium-enriched tea and ultra-high pressure, which is applied in the field of food and medical treatment, can solve the problems of long time consumption, high extraction temperature, and large amount of extraction solvent, and achieve the effect of short extraction time, low extraction temperature and retention of physiological activity
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[0027] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0028] This embodiment provides a method for extracting selenium-enriched tea polysaccharides using ultra-high pressure, the method steps are:
[0029] Step 1) washing the selenium-enriched tea, drying to 60° C., pulverizing, and then passing through a 60-mesh sieve to make selenium-enriched tea dry powder;
[0030] Step 2) Weigh the dry selenium-enriched tea powder and perform ultra-high pressure extraction with distilled water; the extraction pressure is 200-500MPa, the extraction time is 3-20min, and the solid-liquid ratio of the selenium-enriched tea dry powder to distilled water is 1:20-50g / mL.
[0031] Step 3) Centri...
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