Method for preparing nano-selenium from nano-aggregates of camellia plants and nano-selenium prepared by the method

A technology of nano selenium and aggregates, applied in the field of nano selenium, can solve the problems of instability and limited application scope, and achieve the effect of synergistic effect of anti-cancer activity
CN107792837AActive Publication Date: 2018-03-13SOUTH CHINA AGRI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTH CHINA AGRI UNIV
Publication Date
2018-03-13

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Abstract

The invention belongs to the technical field of nano-materials and discloses a method for preparing nano-selenium from nano-aggregates of camellia plants. The method comprises (1) separation of nano-aggregates of camellia plants: preparing water extract of camellia plants and separating nano-aggregates of camellia plants through ultrafiltration centrifugal separation to obtain two types of colloidal particles having an average diameter of greater than 10 nm and an average diameter of less than or equal to 10 nm, and 2) preparation of nano-selenium from the nano-aggregates of camellia plants: reducing sodium selenite and vitamin C in the presence of the nano-aggregates of camellia plants to obtain nano-selenium sol and removing vitamin C to obtain a nano-selenium finished product. The method utilizes nano-aggregates of camellia plants as templates, reveals the difference of nano-selenium in the nano-aggregates of different camellia plants, enhances the functional properties of nano-selenium, broadens the application field of nano-selenium and increases a nano-selenium application value.
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Description

technical field

[0001] The invention belongs to the technical field of nanomaterials, and in particular relates to a method for preparing nano-selenium by using camellia plant nano-aggregates and the prepared nano-selenium. Background technique

[0002] Selenium (Se) is one of the essential trace elements for the human body and is closely related to human health. Anti-oxidation and anti-cancer are the main biological activities of selenium. Selenium also has the functions of improving immunity, antagonizing heavy metals, participating in iodine metabolism in the body, regulating the level of iodine and free radicals in the body, etc. Selenium is a double-edged sword. It exerts anti-oxidant and anti-cancer activities but also produces toxicity. Biological effects of selenium and toxicity of selenium The concentration range of selenium is extremely narrow, and the toxicity is shown in a little more than the nutritional dose. The study found that the toxicity of selenium and...

Claims

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