A kind of method of cellulase synergistic ultrasonic-assisted extraction of red meat dragon fruit pigment

A technology for red-fleshed dragon fruit and cellulase, which is applied to chemical instruments and methods, organic dyes, natural dyes, etc., can solve the problems of low dissolution rate of dragon fruit pigment, reduction of time-consuming, and reduction of the residual rate of dragon fruit pigment solvent. , to achieve the effect of facilitating the retention of biological activity, rapid dissolution, and optimization of extraction process conditions

Active Publication Date: 2022-04-26
HUNAN AGRICULTURAL UNIV
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Problems solved by technology

[0004] The object of the present invention is to provide a kind of method that cellulase cooperates ultrasonic assisted extraction red meat pitaya pigment, to solve the problem that the extracting efficiency is reduced because of the low dissolution rate of pitaya pigment in the prior art and time-consuming, and reduces Solvent residual rate in pitaya pigment

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  • A kind of method of cellulase synergistic ultrasonic-assisted extraction of red meat dragon fruit pigment
  • A kind of method of cellulase synergistic ultrasonic-assisted extraction of red meat dragon fruit pigment
  • A kind of method of cellulase synergistic ultrasonic-assisted extraction of red meat dragon fruit pigment

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Embodiment Construction

[0034] The following is further described in detail through specific implementation methods:

[0035] In the present invention, the extraction of pigments is carried out according to the following steps, a method for extracting red meat dragon fruit pigments with the aid of cellulase and ultrasonic waves, comprising the following steps:

[0036] (1) Get undamaged dragon fruit to clean, remove surface scales, and dry;

[0037] (2) the peel and pulp of dragon fruit in step (1) are separated, the peel is cut into strips, and the pulp is beaten;

[0038] (3) take the pericarp or pulp in step (2) and freeze-dry, crush and sieve the freeze-dried pericarp or pulp to obtain powder;

[0039] (4) For the powder in step (3), add extractant and auxiliary enzyme, the mass ratio of pericarp or pulp to the extract is 1:50-300; the extract used in this embodiment is distilled water, ethanol, acetone and / or or methanol; the auxiliary enzyme is pectinase or cellulase; use ultrasonic treatment...

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Abstract

The application of the present invention belongs to the technical field of pigment extraction, and specifically discloses a method for assisted extraction of red flesh dragon fruit pigment by cellulase and ultrasonic wave, comprising the following steps: (1) taking undamaged dragon fruit for cleaning, removing surface scales, and drying in the air. (2) the peel, pulp of dragon fruit are separated in the step (1); (3) get the peel or the pulp in the step (2) and freeze-dry, and the freeze-dried peel or the pulp are pulverized and sieved 40 meshes to obtain powder; (4) The powder in step (3) is added with extractant and auxiliary enzyme, the pigment is extracted by ultrasonic treatment, centrifuged, and the supernatant is taken; (5) the supernatant in step (4) is decompressed and rotary evaporated to remove the solvent , concentrated to obtain a crude extract of red pigment. The invention is mainly used for extracting pitaya pigment, solves the problem that the extraction efficiency is reduced due to low dissolution rate of pitaya pigment and takes a long time in the existing pitaya pigment extraction technology, and reduces the solvent residual rate in the pitaya pigment.

Description

technical field [0001] The invention belongs to the technical field of pigment extraction, and specifically discloses a method for extracting red flesh pitaya pigment with the assistance of cellulase and ultrasonic waves. Background technique [0002] Dragon fruit belongs to the cactus family. It is rich in vegetable protein and dietary fiber. Regular consumption can improve constipation. It can also be used as an adjuvant therapy for diabetics and hyperlipidemia patients. Pitaya's peel and flesh are bright in color, rich in betaine pigments, and it is an excellent resource for preparing natural pigments. [0003] At present, the pitaya pigment at home and abroad mainly adopts the solvent extraction method, and the obtained dragon fruit pigment product is not high in purity, takes a long time, and reduces the extraction efficiency; at the same time, there are extractant residues in the pitaya pigment product, and the pigment product contains Problems such as pectin make the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B61/00C09B67/54
CPCC09B61/00C09B67/0096
Inventor 邓放明田艳段晓嫣
Owner HUNAN AGRICULTURAL UNIV
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