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Extraction method for pigment of Rhodomyrtus tomentosa (Ait.) Hassk fruit

An extraction method, the technology of myrtle, applied in the field of plant natural pigment extraction, can solve the problems of rot and waste of plant resources, and achieve the effect of simple process, high yield and high pigment activity

Inactive Publication Date: 2014-12-24
梁彩英
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After most of the myrtle fruits mature, they fall to the ground and rot directly because no one harvests them, resulting in serious waste of plant resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The following examples are to further illustrate the present invention, but not to limit the present invention.

[0018] (1) Fruit pigment extraction: When the fruit is dark purple, the fruit is mature, harvested in time and dried naturally, crushed, sieved through 80 mesh, and added to the sieved myrtle fruit and concentration at a material-to-liquid ratio of 20ml / g. It is a 55% ethanol solution, at 60℃ with 300W ultrasonic power assisted extraction for 5h to obtain the extract containing myrtle fruit pigment, centrifuged at a speed of 8000r / min for 20min to obtain the supernatant a, and then the residue The liquid ratio was 10ml / g and the 55% ethanol solution was added to continue ultrasonic extraction at 300W power. The supernatant liquid b was obtained by centrifugation, and the supernatant liquid a and b were combined to obtain the myrtle fruit pigment extract liquid c.

[0019] (2) Concentration: under the conditions of a temperature of 50°C and a vacuum degree of...

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PUM

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Abstract

The invention discloses an extraction method for pigment of Rhodomyrtus tomentosa (Ait.) Hassk fruit and relates to an extraction method for anthocyanin pigment of the Rhodomyrtus tomentosa (Ait.) Hassk fruit. The extraction method provided by the invention comprises the following technical procedures: Rhodomyrtus tomentosa (Ait.) Hassk fruit picking, fruit drying, smashing, sieving, extracting, centrifuging, vacuum concentrating, purifying and drying. The pigment of the Rhodomyrtus tomentosa (Ait.) Hassk fruit, extracted by the method, is classified as a water-soluble anthocyanin pigment, the stability is good, the colour generation effect is good, and the pigment can be used as a coloring agent for foods, is safe and healthy, and is a pure natural green food.

Description

Technical field [0001] The invention relates to the technical field of extraction of plant natural pigments, in particular to a method for extracting pigments from myrtle fruit. Background technique [0002] Myrtle ( Rhodomyrtus tomentosa (Ait.) Hassk), also known as Nunzi and Shan Nun, is an evergreen multi-flowering shrub of the Myrtle family Myrtle family. It is the main understory vegetation in southern provinces of my country. At present, the utilization rate of development of myrtle fruit in China is very low, and the level of processing and utilization is low. It is mainly used for the production of myrtle fruit wine and juice. It is in a family workshop mode and has not yet formed large-scale industrial production. Most of the myrtle fruits fall off the ground and rot directly after being harvested by no one, causing serious waste of plant resources. [0003] Myrtle fruit has attracted people’s attention for a long time. It is rich in natural pigments, and its pigmen...

Claims

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Application Information

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IPC IPC(8): C09B61/00
Inventor 梁彩英
Owner 梁彩英
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