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Combined extraction method of different functional components in citrus fruit peel residues

A joint extraction and functional technology, applied in the direction of medical preparations containing active ingredients, plant/algae/fungus/moss components, non-central analgesics, etc., can solve the problem of high cost of alcohol waste discharge and sewage treatment, and industrial Problems such as unsatisfactory production and low commercial value, etc., achieve the effect of reducing the burden of sewage treatment, solving industrialization problems, and widely applying and using effects

Active Publication Date: 2021-10-15
广州市莱檬生物科技有限公司 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the discharge and sewage treatment costs of alcohol waste liquid produced by pectin production are high
In addition, the traditional process only uses solvent method to extract limonin and flavonoids from citrus fruits. ideal

Method used

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  • Combined extraction method of different functional components in citrus fruit peel residues
  • Combined extraction method of different functional components in citrus fruit peel residues

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Embodiment 1: the joint extraction method of pectin, citrus fiber, limonin and flavonoids in lemon zest:

[0047] (1) Extraction of pectin: Add pure water to lemon peel residue according to the ratio of material to liquid 1:40g / mL, add nitric acid to adjust the pH to 2.2, stir and extract at 80°C at 50r / min, keep at constant temperature for 2h, and extract the fruit The glue was centrifuged on a decanter at 2000r / min, the supernatant was collected, and the residue obtained was used for later use; the supernatant was concentrated in vacuum 4 times, and the concentrated solution was poured into absolute ethanol to make the system reach 75% ethanol concentration, and alcohol precipitation was carried out for 0.5h , collect the alcohol precipitation precipitate, and the obtained alcohol precipitation waste liquid is set aside; the precipitate is rake-dried at 75° C. for 6 hours to obtain pectin. The extraction rate of pectin is 25.68%.

[0048] (2) Preparation of citrus fi...

Embodiment 2

[0052] Embodiment 2: Combined extraction method of pectin, citrus fiber, limonin and flavonoids in orange peel:

[0053] (1) Extraction of pectin: add pure water to the orange peel pomace according to the ratio of material to liquid 1:20g / mL, add hydrochloric acid to adjust the pH to 3.0, stir and extract at 50r / min at 65°C, keep at constant temperature for 5h, and extract the fruit Glue 5500r / min disc centrifugation to collect the supernatant, collect the supernatant, and the resulting residue is for use; the supernatant is concentrated in vacuum 3 times, and the concentrated solution is poured into absolute ethanol to make the system reach 60% ethanol concentration, Alcohol precipitation for 1 hour, alcohol precipitation precipitation was collected, and the resulting alcohol precipitation waste liquid was set aside; the precipitation was dried in a fluidized bed at 75° C. for 15 minutes to obtain pectin. The extraction rate of pectin is 28.12%.

[0054] (2) Preparation of c...

Embodiment 3

[0058] Embodiment 3: Combined extraction method of pectin, citrus fiber, limonin and flavonoids in pomelo pomace residue:

[0059] (1) Extraction of pectin: Add pure water to pomelo peel dregs according to the ratio of material to liquid 1:30g / mL, add citric acid to adjust the pH to 1.0, stir and extract at 90°C at 50r / min, keep at constant temperature for 1h, and extract The pectin solution was collected by decanter centrifugation at 3000r / min to collect the supernatant, and the obtained residue was used for later use; the supernatant was concentrated in vacuum 5 times, and the concentrated solution was poured into absolute ethanol to make the system reach 70% ethanol concentration, and alcohol precipitation was carried out for 1 hour , collect the alcohol precipitation precipitate, and the obtained alcohol precipitation waste liquid is set aside; the precipitate is dried in a fluidized bed at 70° C. for 20 min. The extraction rate of pectin was 30.19%.

[0060] (2) Preparat...

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Abstract

The invention discloses a combined extraction method of different functional components in citrus fruit peel residues. The method comprises the steps: adding water into the citrus fruit peel residues, adjusting the pH value to be acidic, stirring and extracting at constant temperature, centrifuging extracted pectin liquid, collecting supernate, carrying out alcohol precipitation on the supernate, precipitating and drying to obtain pectin; adding water into the obtained residues, stirring, firstly, carrying out physical pretreatment, homogenizing, carrying out alcohol precipitation, precipitating and drying to obtain citrus fibers; and carrying out alcohol recovery on the alcohol precipitation waste liquid, and carrying out purification and concentration to obtain limonin and flavonoid substances. According to the invention, three functional products of pectin, limonin and flavonoid extracts and citrus fibers applied in different fields are obtained through a continuous step-by-step separation and extraction process and a combined chemical and physical modification process, and through reasonable arrangement and planning of an industrialization route, 'thorough eating and squeezing' is really realized. As a novel low-pollution agricultural product biological environment-friendly processing scheme, the combined extraction process route has good conversion application expectation.

Description

technical field [0001] The invention relates to the fields of waste recycling and functional component extraction, in particular to a combined extraction method of different functional components in citrus fruit pomace. Background technique [0002] There are many types and varieties of citrus in my country, and the resources are very rich. The output of citrus has already ranked first in the world. With the rapid development of the domestic citrus processing industry, the problem of citrus peel disposal has become more prominent. At present, the sanitary landfill method is the main way to dispose of the peel residue in the lemon processing industry. After the citrus peel is buried, it is very easy to get moldy and smelly, causing a great waste of plant resources and seriously polluting the environment; and processing it into feed often requires Drying process consumes a lot of heat, and the output value is very low. [0003] The proportion of solid waste (husk residue, see...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/06D01B1/50A61K36/752A61P11/00A61P29/00A61P31/14A61K131/00
CPCC08B37/0048C07J73/008A61K36/752A61P11/00A61P29/00A61P31/14A61K2236/331A61K2236/51A61K2236/53A61K2236/55C07G99/00Y02P60/87
Inventor 廖劲松齐军茹
Owner 广州市莱檬生物科技有限公司
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