Process for preparing natural chlorophyll and products thereof with spearmint as raw material

A technology of chlorophyll and spearmint, applied in the direction of organic chemistry, to achieve good development value, bright green color, and the effect of promoting development

Inactive Publication Date: 2006-09-06
辽宁省农业科学院食品与加工研究所 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The research on extracting and preparing copper chlorophyll and

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The process of preparing chlorophyll extract: Weigh 1000 grams of dry spearmint leftovers, chop them, add 4000 milliliters of 95% ethanol, extract at 60 ° C for 3 hours, repeat the extraction twice, filter hot and cold, and combine The filtrate was concentrated twice at 50°C under reduced pressure to obtain a dark green chlorophyll extract.

[0030] The technology of preparing oil-soluble paste copper chlorophyll or chlorophyll zinc: get 100 grams of chlorophyll extract prepared by the above-mentioned process method and 300 milliliters of 5% NaoH90% ethanol solution and saponify at 55-65 ℃ for 1.5 hours, adjust the ethanol concentration to 80%, neutralize the saponification solution, add 20 grams of copper acetate or zinc acetate, then adjust the pH to 4, replace at 60°C for 1 hour, filter, and concentrate the filtrate under reduced pressure to obtain oil-soluble paste copper chlorophyll or chlorophyll zinc.

[0031] Process for preparing water-soluble paste copper chl...

Embodiment 2

[0034] The process of preparing chlorophyll extract: Weigh 1000 grams of dry spearmint leftovers, chop them, add 3000 milliliters of 95% ethanol, extract at 50 ° C for 2 hours, repeat the extraction 3 times, filter hot and cold, and combine The filtrate was concentrated three times under reduced pressure at 45°C to obtain chlorophyll extract.

[0035] The process of preparing oil-soluble paste copper chlorophyll or zinc chlorophyll: take 100 grams of chlorophyll extract prepared by the above process and saponify 300 milliliters of 5% NaoH95% ethanol solution at 65 ° C for 1 hour, and adjust the ethanol concentration to 85% , the saponified solution is neutralized, adding 20 grams of copper acetate or zinc acetate, and then adjusting the pH to 4.5, replacing it at 55°C for 1 hour, filtering, and concentrating the filtrate under reduced pressure to obtain zinc chlorophyllin or copper chlorophyllin in an oil-soluble paste.

[0036] Process for preparing water-soluble paste copper...

Embodiment 3

[0039] The process of preparing chlorophyll extract: Weigh 1000 grams of dried spearmint leftovers, chop them, add 3500 milliliters of 95% ethanol, extract at 65 ° C for 2.5 hours, repeat the extraction 2-3 times, heat filter and filter after cooling , combined filtrates, concentrated under reduced pressure at 45°C to obtain chlorophyll extract.

[0040] The process of preparing oil-soluble paste copper chlorophyll or zinc chlorophyll: take 100 grams of chlorophyll extract prepared by the above process and saponify 300 milliliters of 5% NaoH92% ethanol solution at 60 ° C for 1 hour, and adjust the ethanol concentration to 83% , the saponified solution is neutralized, adding 20 grams of copper acetate or zinc acetate, and then adjusting the pH to 5, replacing it at 50°C for 0.5 hours, filtering, and concentrating the filtrate under reduced pressure to obtain zinc chlorophyllin or copper chlorophyllin in an oil-soluble paste.

[0041] Process for preparing water-soluble paste co...

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PUM

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Abstract

The invention discloses a method for preparation of antenna chlorophyll and especially to a method for preparation of antenna chlorophyll and its products with Mentha spicata as raw materials. It includes the following processing steps: with Mentha spicata as raw materials, extracting with ethanol, filtering, concentrateing, and refining to obtain chlorophyll concrete. The invented technology using a set of equipment produces six products which include chlorophyllcopper or chlorophyllzinc of oil-soluble paste, chlorophyllcopper or chlorophyllzinc of water-soluble paste and sodium copper chlorophyll or sodium zinc chlorophyllin of water-soluble powder, in which chlorophyllcopper or chlorophyllzinc of water-soluble paste can be applied in acid condition, neutral condition and alkaline condition, which broadens the application area of chlorophyll. The invention is characterized in that the product is of oeruginous colour, pure shade, good optical-thermo stability, and is safe and of no side toxiceffect, belonging to natural colouring matter, so it can be broadly used in spheres such as food, drinking, medicine, cosmetics and so on. The invention explores new stock sources of environmental natural food and provides a new method for comprehensive utilization of Mentha spicata.

Description

technical field [0001] The invention relates to a method for preparing chlorophyll, in particular to a method for preparing natural chlorophyll and its products by using spearmint as raw material. Background technique [0002] Spearmint (Mentha spicata L.), alias: spearmint, flower coriander, green mint, belongs to the perennial aromatic herb of the Lamiaceae Mentha genus. Mentha includes about more than 30 species and more than 140 varieties. The mints cultivated in my country are mainly Asian mint, peppermint, bergamot, and spearmint. Among them, spearmint and Asian mint have similar properties and have a large cultivation area. Spearmint is a precious spice plant. When the plant matures, it has a strong aroma and is rich in volatile oil. Its main components are menthone, menthol, etc. It is widely used in high-end cosmetics, high-end food, oral hygiene products, tobacco, etc. Industry; in medicine, it is widely used in antisepsis, anti-inflammatory, analgesic, antipruri...

Claims

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Application Information

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IPC IPC(8): C07D487/22
Inventor 张华姜福林鲁明于淼章振波章娜石太渊吴兴壮王建国张晓黎
Owner 辽宁省农业科学院食品与加工研究所
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