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Camellia sinensis manganese and preparation method thereof

A technology of tea polyphenols manganese and tea polyphenols, which is applied in the field of manganese organometallic compounds, can solve problems such as easy dissociation of manganese complexes, difficulty in obtaining crystalline precipitation, and difficulty in maintaining biological activity, so as to ensure biological function, improve the yield, and ensure the normal effect

Inactive Publication Date: 2007-03-14
黄河宁 +1
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Problems solved by technology

Due to the relatively weak ability of manganese ions to form complexes, manganese-containing complexes are prone to dissociation, and it is difficult to obtain crystal precipitation during the complexation process of tea polyphenols and manganese. On the other hand, manganese tea polyphenols are easily oxidized during the preparation process. Denatured, difficult to maintain its original biological activity
Therefore, the complexation of tea polyphenols and manganese has great technical difficulties

Method used

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  • Camellia sinensis manganese and preparation method thereof
  • Camellia sinensis manganese and preparation method thereof

Examples

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Embodiment 1

[0027] Embodiment 1, the preparation method of tea polyphenol manganese is shown in Figure 1. (1) Weigh 2 grams of tea polyphenols in a beaker, add 100ml of distilled water to dissolve, and use ultrasonic waves to dissolve for 2 minutes, and filter out insoluble matter; (2) Put the filtrate into a three-necked flask, and add 15 microliters of NaOH while stirring solution, then add dilute hydrochloric acid to adjust the pH value of the filtrate to 6.5; (3) slowly add 150ml of 0.1mol / L divalent manganese solution to the solution in a constant temperature water bath, stir for 30 minutes, and control the temperature of the water bath at 32°C. Nitrogen protection in the middle; (4) standing and aging the solution obtained after the reaction at 10° C. for 12 hours, and then separating the precipitate in the solution from the liquid; (5) putting the precipitate into a Soxhlet extractor, Reflux and rinse with absolute ethanol solution for 12 hours under vacuum to remove unreacted impu...

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Abstract

The present invention discloses tea polyphenol-Mn complex and its preparation process. The tea polyphenol-Mn complex is prepared through complexing polyphenol and bivalent Mn, and contains (C22H14O11)2Mn, C22H14O11Mn, (C15H12O7)2Mn, C15H12O7Mn, (C22H14O10)2Mn and C22H14O10Mn as main components. The complexing reaction has high yield. The tea polyphenol-Mn complex has both the bioactivity of tea polyphenol and biological effect of Mn, and may be used as health food additive and medicine for preventing and treating manganese deficiency disease.

Description

technical field [0001] The invention relates to an artificially synthesized organic metal compound of manganese and a preparation method thereof. Background technique [0002] Tea polyphenols are the main, most essential, and most beneficial components extracted from green tea. They are composed of flavanols, anthocyanins, anthocyanins, condensed acids and phenolic acids in tea. Its main component is flavan-3-alcohol derivatives, commonly known as catechins, accounting for 60% to 80% of the total phenolic content, mainly composed of gallic acid (GA), epicatechin (EC), gallate Theanine (GC), epigallocatechin (EGC), epicatechin gallate (ECG), epigallocatechin gallate (EGCG). According to scientific research and clinical verification, tea polyphenols have important biological activities such as scavenging free radicals and anti-oxidation, and pharmacological effects such as suppressing and anti-cancer. Manganese is an essential trace element for the human body and plays an im...

Claims

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Application Information

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IPC IPC(8): C07F13/00
Inventor 黄河宁黄河清
Owner 黄河宁
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