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Comprehensive utilization method for orange peels, citrus junos peels and citrus maxima peels

A technology of orange peel and pomelo peel is applied in the field of comprehensive utilization of resources and can solve problems such as large-scale production that has not yet been formed

Active Publication Date: 2015-11-25
QUZHOU UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, people have begun to study the extraction of essential oils, pectin and carotenoids from orange peel, orange peel and pomelo peel, and some achievements have been made, but large-scale production has not yet been formed.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] (1) Extract flavonoids: Take 10 grams of orange peel powder and 200ml of ethanol solution (75% concentration), microwave-assisted leaching for 1 hour, separate solid from liquid, wash the solid with deionized water until the aqueous solution is colorless, and set aside; The flavonoid mother liquor was distilled to recover ethanol, and the distillation residue was dried to obtain 1.05 g of flavonoid crude product;

[0016] (2) Alkalinization and alcoholization: add 100ml of NaOH solution (0.1mol / L) to the reaction product, stir for 1 hour, separate with a centrifuge, add 100ml of isopropanol solution (20% concentration), soak overnight, and the soaked The solution is separated with a centrifuge;

[0017] (3) Alkylation: Pour the above-mentioned treated product into a dry three-necked flask equipped with a mechanical stirrer and a condenser tube, add 15g of 3-chloropropyltrimethoxysilane and mix evenly, in toluene solvent 80 React at a constant temperature for 10 hours a...

Embodiment 2

[0022] (1) Extract flavonoids: Take 10 grams of orange peel powder and 200ml of methanol solution (95% concentration), microwave-assisted leaching for 2 hours, separate solid and liquid, wash the solid with deionized water until the aqueous solution is colorless, and set aside; The flavonoid mother liquor was distilled to recover methanol for mechanical use, and the distillation residue was dried to obtain 0.95 g of flavonoid crude product;

[0023] (2) Alkalinization and alcoholization: add 100ml of NaOH solution (0.1mol / L) to the reaction product, stir for 1 hour, separate with a centrifuge, add 100ml of isopropanol solution (20% concentration), soak overnight, and the soaked The solution is separated with a centrifuge;

[0024] (3) Alkylation: Pour the above-mentioned treated product into a dry three-necked flask equipped with a mechanical stirrer and a condenser tube, add 15g of 3-chloropropyltrimethoxysilane and mix evenly, in toluene solvent 80 React at constant tempera...

Embodiment 3

[0029] (1) Extraction of flavonoids: Take 10 grams of pomelo peel powder and 200ml of ethanol solution (95% concentration), microwave-assisted leaching for 4 hours, separate solid and liquid, wash the solid with deionized water until the aqueous solution is colorless, and set aside; The flavonoid mother liquor was distilled to recover methanol for mechanical use, and the distillation residue was dried to obtain 0.85 g of flavonoid crude product;

[0030] (2) Alkalinization and alcoholization: add 100ml of NaOH solution (0.1mol / L) to the reaction product, stir for 1 hour, separate with a centrifuge, add 100ml of isopropanol solution (20% concentration), soak overnight, and the soaked The solution is separated with a centrifuge;

[0031] (3) Alkylation: Pour the above-mentioned treated product into a dry three-necked flask equipped with a mechanical stirrer and a condenser tube, add 15g of 3-chloropropyltrimethoxysilane and mix evenly, in toluene solvent 90 React at a constant ...

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PUM

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Abstract

The invention provides a comprehensive utilization method for orange peels, citrus junos peels and citrus maxima peels and belongs to the technical field of source comprehensive utilization. The orange peels, the citrus junos peels and the citrus maxima peels which are low in price are utilized, the orange peels, the citrus junos peels and the citrus maxima peels are digested for separating out flaudio-videoonoids, then graft modification is performed so that functional single bodies having site adsorption functions are grafted to the surface of cellulose, template ionic imprinting reaction is performed, and then closed adsorption is performed on empty sites by a cross-linking agent, so that ionic imprinting polymers having recognition and adsorption functions on specific ions are formed. The method can be widely applied to recognition and adsorption of various cations and can be used for achieving the comprehensive utilization of the orange peels, the citrus junos peels and the citrus maxima peels.

Description

technical field [0001] The invention belongs to the technical field of comprehensive utilization of resources, and in particular relates to a resource utilization method for further preparing ion surface imprinted polymers after extracting flavonoids from orange peel, orange peel and pomelo peel. Background technique [0002] my country is one of the important origins of citrus, orange, and pomelo. The newly peeled orange peel, orange peel, and pomelo peel account for about 15% of the total mass, and the peel resources are abundant. At present, except that a small amount of tangerine peel is used for medicine, most of orange peel, orange peel and pomelo peel are discarded as garbage. The main component of orange peel, orange peel, and pomelo peel is cellulose, and it also contains essential oils, flavonoids, pectin, and pigments. In recent years, people have begun to study the extraction of essential oils, pectin and carotenoids from orange peel, orange peel, and pomelo pee...

Claims

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Application Information

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IPC IPC(8): B01J20/24B01J20/30
Inventor 吕亮曾惠明胡伟
Owner QUZHOU UNIV
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