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Method for extracting pigment from mango peel

A mango peel and pigment technology, applied to chemical instruments and methods, azo dyes, organic dyes, etc., can solve the problems of low utilization rate and waste of peel, and achieve the effect of low cost and bright color

Inactive Publication Date: 2015-06-17
QINGDAO PENGYUAN KANGHUA NATURAL PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While mango pulp is eaten, the peel is often wasted, especially in the process of mass processing in industrial production, the peel is a resource that can be used, but the utilization rate is extremely low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] (1) Select 3 kg of fresh and ripe mango peels with thick skin, orange color, no black spots, mildew, and no rot, and put them in a drying oven, set the temperature at 45°C, dry for 5 minutes, and crush them into 90-mesh mango powder;

[0016] (2) Immerse the raw materials in the ethanol aqueous solution with a volume concentration of 70% according to the material-liquid ratio of 5g / ml, put them in the microwave system, keep the microwave power at 400W, control the time at 90s, and the temperature at 40

[0017] Centrifuge at 1000r / min at high speed for 10min to extract and collect the supernatant;

[0018] (3) Filter the chlorophyll-extracted liquid under reduced pressure, then control the temperature to 50°C, concentrate and recover the ethanol solvent;

[0019] (4) Collect the concentrated liquid and perform multiple dynamic adsorption with HPD100 macroporous resin, and then elute with ethanol. After recovering ethanol, the eluate is placed in a vacuum refrigerator at...

Embodiment 2

[0021] (1) Select 3 kg of fresh and ripe mango peels with thick skin, orange color, no black spots, mildew, and no rot, and put them in a drying oven, set the temperature at ℃, dry for 57 minutes, and crush them into 110-mesh mango powder;

[0022] (2) Immerse the raw materials in an aqueous solution of acetone organic solvent with a volume concentration of 85% according to a solid-liquid ratio of 10g / ml, and put it in a microwave system, keep the microwave power at 220W, control the time at 105s, and carry out at 45°C For extraction, use a centrifuge to extract and collect the supernatant by high-speed centrifugation at 1000r / min for 10 minutes;

[0023] (3) Filter the chlorophyll-extracted liquid under reduced pressure, then control the temperature to 60°C, concentrate and recover the acetone organic solvent;

[0024] (4) Collect the concentrated liquid and perform multiple dynamic adsorption with HPD750 macroporous resin, and then elute with ethanol. After recovering ethano...

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Abstract

The invention relates to a method for extracting pigment from mango peel. The method is characterized by comprising the following steps: (1) selecting fresh and ripe mango peel, and drying and pulverizing the mango peel; (2) soaking the obtained peel in an aqueous solution of an organic solvent, putting the solution in a microwave system for extraction, performing extraction by a centrifuge, and collecting a supernatant; (3) performing vacuum filtering and concentration to recycle the organic solvent; and (4) collecting the concentrated solvent, performing dynamic adsorption of the concentrated solvent for several times by using a macroporous resin, performing elution with ethanol, recycling ethanol from the eluate, putting the obtained product in a vacuum refrigerated cabinet, and drying. According to the invention, the pigment has a high content, appears natural yellow, and has a bright color. According to the invention, yellow pigment can be successively extracted from normal waste mango peel; waste mango peel is turned into wealth; social requirements of green and recycling economy are satisfied; and the whole extraction processes are low in cost and suitable for mass production.

Description

technical field [0001] The invention relates to the field of pigment extraction, in particular to a method for extracting pigment from mango peel. Background technique [0002] Mango has good color, fragrance and taste, and is rich in nutrition. Every 100 grams of pulp is rich in vitamin C, some as high as 189 mg; sugar content is 14-16%; seeds contain 5.6% protein; fat 16.1% %; carbohydrates 69.3%. Eating mango has the functions of benefiting the stomach, quenching thirst, and diuresis. Ripe mangoes can be used as anti-fouling agents and diuretics in medicine, and the seeds can be used as insecticides and astringents. Mango pulp is juicy, delicious, and has the taste of peach, apricot, plum, and apple. If you eat a few in midsummer, it can produce body fluids, quench thirst, and relieve summer heat. Because mango is inconvenient for fresh-keeping storage and long-distance transportation, people often process it into canned syrup, candied fruit, fruit wine, dried fruit, ja...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B61/00
CPCC09B61/00
Inventor 于帅臧启志展亚倩李进超
Owner QINGDAO PENGYUAN KANGHUA NATURAL PROD
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