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Method for extracting natural haematochrome and marennin from folium photiniae

A technology of natural red pigment and extraction method, applied in the field of extraction of natural red pigment and natural green pigment in heather leaves, to achieve the effects of good stability, bright color, and retaining the original quality and flavor

Inactive Publication Date: 2015-05-13
ANHUI XINHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There is no report on the extraction method of heather chlorophyll in China

Method used

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  • Method for extracting natural haematochrome and marennin from folium photiniae
  • Method for extracting natural haematochrome and marennin from folium photiniae
  • Method for extracting natural haematochrome and marennin from folium photiniae

Examples

Experimental program
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Effect test

Embodiment 1

[0020] Take fresh Photinia red leaves, cut them into pieces with scissors, ultrasonically extract with 6 times the volume of 90vt% ethanol solution for 20 minutes, recover the ethanol, add water and ethyl acetate (volume ratio of water and ethyl acetate: 1:1) to extract 3 times, and combine For the extract, the lower layer of the extract was dried at 50°C to obtain the red pigment, and the yield of the red pigment was 4.73%.

[0021] Take fresh heather green leaves, cut them into pieces with scissors, and extract them ultrasonically for 20 minutes with 10 times the volume of ethyl acetate and ethanol mixed solvent (volume ratio of ethyl acetate and ethanol: 1:1). After recovering the solvent, add water and ethyl acetate (water and Ethyl acetate (volume ratio 1:1) was extracted 3 times, the extracts were combined, the upper layer of the extract was taken, concentrated by a rotary evaporator, and dried at 50°C to obtain green pigment with a green pigment yield of 1.85%.

Embodiment 2

[0023] Take fresh Photinia red leaves, cut them into pieces with scissors, ultrasonically extract with 8 times the volume of 90vt% ethanol solution for 25 minutes, recover the ethanol, add water and ethyl acetate (volume ratio of water and ethyl acetate: 1:1) to extract 4 times, and combine For the extract, the lower layer of the extract was dried at 50°C to obtain the red pigment, and the yield of the red pigment was 5.10%.

[0024] Take fresh heather green leaves, cut them into pieces with scissors, and ultrasonically extract them with 15 times the volume of ethyl acetate and ethanol mixed solvent (the volume ratio of ethyl acetate and ethanol is 1:1) for 25 minutes. After recovering the solvent, add water and ethyl acetate (water and Ethyl acetate (volume ratio 1:1) was extracted 3 times, the extracts were combined, the upper layer of the extract was taken, concentrated by a rotary evaporator, and dried at 50°C to obtain green pigment with a green pigment yield of 2.01%.

Embodiment 3

[0026] Take fresh Photinia red leaves, cut them into pieces with scissors, ultrasonically extract 10 times the volume of 90vt% ethanol solution for 30 minutes, recover the ethanol, add water and ethyl acetate (volume ratio of water and ethyl acetate 1:1) to extract 4 times, and combine For the extract, the lower layer of the extract was dried at 50°C to obtain the red pigment, and the yield of the red pigment was 5.15%.

[0027] Take fresh heather green leaves, cut them into pieces with scissors, and ultrasonically extract them with 20 times the volume of ethyl acetate and ethanol mixed solvent (the volume ratio of ethyl acetate and ethanol is 1:1) for 30 minutes. After recovering the solvent, add water and ethyl acetate (water and Ethyl acetate (volume ratio 1:1) was extracted 4 times, the extracts were combined, the upper layer of the extract was taken, concentrated by a rotary evaporator, and dried at 50°C to obtain green pigment with a green pigment yield of 2.06%.

[0028...

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Abstract

The invention discloses a method for extracting natural haematochrome and marennin from folium photiniae. The method for extracting natural haematochrome from folium photiniae comprises the following steps: crushing red folium photiniae; adding an ethanol solution to carry out ultrasonic extraction for 20-30 min at normal temperature; recycling ethanol with an extracting solution and then adding water and ethyl acetate to extract for three to four times; combining the extracting solutions to keep a subnatant; concentrating with a rotary evaporator; and drying to obtain haematochrome. The method for extracting natural marennin from folium photiniae comprises the following steps: crushing green folium photiniae; then adding a mixed solvent of ethyl acetate and ethanol; carrying out ultrasonic extraction for 20-30 min at normal temperature; recycling the solvent with an extracting solution and then adding water and ethyl acetate to extract for three to four times; combining the extracting solutions to keep supernatant liquid; concentrating with a rotary evaporator; and drying to obtain marennin. As a normal-temperature ultrasonic extraction technology is adopted, the damage of high temperature to photiniae pigments can be avoided and the original quality and flavor of a product are kept. The haematochrome and marennin extracted by the methods provided by the invention have good stability.

Description

1. Technical field [0001] The invention relates to a method for extracting natural pigments from plants, in particular to a method for extracting natural red pigments and natural green pigments in heather leaves. 2. Background technology [0002] Heather leaves come from the leaves on the stems of the evergreen shrubs of the Rosaceae heather genus to the small tree heather (Photinia serrulata Lindl.). Photinia itself is a good color-block seedling tree species. In spring and autumn, its leaves are red on the top and green on the bottom, reflecting the colors. It is ornamental as a ground cover or combined with other colorful leaves. In addition, heather leaves are used as medicine, which has a pungent taste and can be dispersed; bitter in taste, dry dampness and strengthen yin. Go into liver and kidney, can nourish kidney and Qi, strengthen tendons and bones, invigorate yang and help pregnancy, and treat impotence, infertility, and irregular menstruation due to weak kidney ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B61/00
Inventor 卫强李启照刁欢华芳丁仁普刘金旗徐鹏朱鹏
Owner ANHUI XINHUA UNIV