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Hylocereus polyrhizus flesh and pericarp red pigment and extraction method thereof

An extraction method and technology of red dragon fruit are applied in the field of extraction technology of natural pigments, which can solve the problems of low extraction rate and few pigment dosage forms, and achieve the effects of high extraction rate, natural color and accelerated transfer.

Inactive Publication Date: 2016-04-27
NANNING SAILONG LINHUA BIOLOGICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] All the above techniques can extract the pigment in dragon fruit, but all use alcohol extraction or water extraction or ultrasonic extraction, the extraction rate is not high, and the pigment formulations obtained by extraction are few, which is not enough to meet people's needs

Method used

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  • Hylocereus polyrhizus flesh and pericarp red pigment and extraction method thereof
  • Hylocereus polyrhizus flesh and pericarp red pigment and extraction method thereof
  • Hylocereus polyrhizus flesh and pericarp red pigment and extraction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] The flesh and peel of red dragon fruit have red pigment, and the pigment structure is as follows:

[0050]

[0051] The method for extracting the red pigment from red dragon fruit pulp and peel includes pretreatment of pulp and peel, extraction and filtration of fruit pulp, degumming treatment, pretreatment of macroporous adsorption resin, separation and enrichment of adsorption resin, dialysis of eluent, eluent Concentrated spray drying, the specific steps are as follows:

[0052] (1) Pretreatment of pulp and peel: select fresh "Sailong No. 1" red dragon fruit that is more than eight mature, free from rot, mildew, pests and diseases, and wash the surface of the red dragon fruit with clean water first, then put Pour off the water, then soak in 0.01% sodium hexametaphosphate solution for 10-15 minutes to thoroughly wash away the residual metal ions on the surface; finally wash with water, drain the water, and remove the green leaves and stems on the peel , separating...

Embodiment 2

[0060] The flesh and peel of red dragon fruit have red pigment, and the pigment structure is as follows:

[0061]

[0062] The method for extracting the red pigment from red dragon fruit pulp and peel includes pretreatment of pulp and peel, extraction and filtration of fruit pulp, degumming treatment, pretreatment of macroporous adsorption resin, separation and enrichment of adsorption resin, dialysis of eluent, eluent Concentrated spray drying, the specific steps are as follows:

[0063] (1) Pretreatment of pulp and peel: select fresh "Sailong No. 1" red dragon fruit that is more than eight mature, free from rot, mildew, pests and diseases, and wash the surface of the red dragon fruit with clean water first, then put Pour off the water, then soak for 13 minutes with 0.07% sodium hexametaphosphate solution by mass percentage, thoroughly wash off the residual metal ions on the surface; finally wash with clean water, drain the water, remove the cyan leaf stems on the peel, se...

Embodiment 3

[0071] The flesh and peel of red dragon fruit have red pigment, and the pigment structure is as follows:

[0072]

[0073] The method for extracting the red pigment from red dragon fruit pulp and peel includes pretreatment of pulp and peel, extraction and filtration of fruit pulp, degumming treatment, pretreatment of macroporous adsorption resin, separation and enrichment of adsorption resin, dialysis of eluent, eluent Concentrated spray drying, the specific steps are as follows:

[0074] (1) Pretreatment of pulp and peel: select fresh "Sailong No. 1" red dragon fruit that is more than eight mature, free from rot, mildew, pests and diseases, and wash the surface of the red dragon fruit with clean water first, then put Pour off the water, then soak for 15 minutes with 0.1% sodium hexametaphosphate solution by mass percentage, thoroughly wash off the residual metal ions on the surface; finally wash with clean water, drain the water, remove the cyan leaf stems on the peel, sep...

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PUM

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Abstract

The invention relates to an extraction method of a Hylocereus polyrhizus flesh and pericarp red pigment. The method comprises the steps of flesh and pericarp pretreatment, fruit paste extraction and filtration, degumming treatment, macro-porous adsorption resin pretreatment, adsorption resin separation and enrichment, eluate dialysis, and concentration spray drying. The extraction method adopting an enzyme technology and an ultrasonic wave technology to extract natural edible red pigments from red heart Hylocereus undatus Britt in order to obtain a powder and an extract, the powder and the extract are dark purple, the maximum wavelength is 538nm, and the pigment extraction rate reaches up to 3.96%. The Hylocereus polyrhizus pigment belongs to betanin pigments, is a water-soluble pigment, and can be extremely easily dissolved in water, the solubility reduces with the reduction of the polarity of a solvent, and the Hylocereus undatus Britt pigment is soluble in methanol and ethanol, and is insoluble in acetic acid, ethyl ester, acetone, ether and other low polarity solvents. The Hylocereus undatus Britt pigment is stable when the pH value is 3-6, and is instable under alkaline conditions.

Description

technical field [0001] The invention relates to a process for extracting natural pigments, in particular to a red dragon fruit pulp and peel red pigment and an extraction method thereof. Background technique [0002] Red dragon fruit (Latin name: Hylocereus undulatus Britt), also known as dragon fruit, fairy honey fruit, jade dragon fruit. Plants of the genus Cactaceae, Trigonum or Serpentis. Origin Central America Costa Rica, Guatemala, Panama, Ecuador, Cuba, Colombia and other places. Later, it was introduced to Southeast Asian countries such as Vietnam and Thailand, Taiwan Province of China, and Hainan, Guangxi, Guangdong, Fujian, Yunnan and other provinces in mainland China. Red dragon fruit not only tastes sweet, but also has high nutritional value. It combines the advantages of fruits, flower buds, vegetables, and medicine. Not only is it rich in nutrition and unique in function, it has few pests and diseases, and it can grow normally without using any pesticides. ...

Claims

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Application Information

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IPC IPC(8): C09B23/10C07H17/02C07H1/08A23L5/43C09B61/00
CPCC09B23/105C07H1/08C07H17/02C09B61/00
Inventor 蒙奇同来光业罗树臣
Owner NANNING SAILONG LINHUA BIOLOGICAL CO LTD
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