Comprehensive utilization method of peony shells

A technology of peony shell and peony oil, applied in the direction of recycling technology, chemical instruments and methods, carbon compounds, etc., to achieve comprehensive utilization and create economic benefits

Active Publication Date: 2013-04-17
HEZE RUIPU PENOY IND TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005]Peony shell is a by-product of peony seed shelling before oil pressing. Based on the annual seed yield of peony is about 600,000 kilograms, the peony shell can reach tens of thousands of kilograms. These peony shells are discarded as waste, without further development and utilization, resulting in a waste of resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Extracting peony oil from peony shells includes the following steps:

[0032] a. Peony shells are crushed to 40-100 mesh with a pulverizer, and the extraction kettle is installed;

[0033] b. Use food grade CO 2 , set the extraction pressure to 20-45MPa, the temperature to 25-50°C, the separator conditions are: separator I pressure 10KPa, temperature 50°C, separator II pressure 4KPa, temperature 40°C, extraction time 0.5-4 hours.

[0034] c. After the extraction is completed, collect the extract to obtain the peony oil, and leave the residue after the extraction of the peony oil for future use.

[0035] food grade CO 2 The purity is 99.99%, and the flow rate is 12-18L / hour.

[0036] In step b above, use food grade CO 2 , the extraction pressure is set to 30MPa, the temperature is 40°C, the separator conditions are: the pressure of separator I is 10KPa, the temperature is 50°C, the pressure of separator II is 4KPa, the temperature is 40°C, and the extraction time is ...

Embodiment 2

[0038] Using the peony shell residue after extracting peony oil in step c of Example 1 as raw material to extract melanin, the steps are as follows:

[0039] Grinding the peony shell residue after extracting peony oil in step c to 100-200 mesh, and placing it in an airtight container;

[0040] Pour 95% ethanol into an airtight container and soak for 24 hours;

[0041] Pour out the solution, then soak in 95% ethanol for 6 hours, repeat 2 times;

[0042] Finally, all the solutions are mixed, filtered, distilled, and ethanol is recovered, and the remaining obtained is a dye solution containing melanin.

Embodiment 3

[0044] Using the peony shell residue after extracting the peony oil in step c of Example 1 as raw material, extracting lignans includes the following steps:

[0045] a. Preparing the alcohol-water extract: crushing the peony shell residue that has been extracted from the peony oil in step c and adding it to the fatty acid alcohol aqueous solution, stirring and extracting at room temperature, filtering, and evaporating the filtrate to remove the solvent to obtain the extract;

[0046] b. Preparation of hydrolyzate aqueous solution: add the extract to alkaline aqueous solution, stir and hydrolyze at room temperature to obtain a hydrolyzate solution;

[0047] c. Separation of lignans: extracting and separating the hydrolyzate with an organic solvent to obtain a crude aqueous solution of lignans;

[0048] d. Purification of lignans: adding alcohol to the separated aqueous solution of crude lignans, absorbing them with silica gel, and hydrolyzing and adsorbing them with alcohol con...

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PUM

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Abstract

The invention belongs to the technical field of application of by-products obtained after peony seed shelling, in particular to a comprehensive utilization method of peony shells. The method comprises the following steps: pretreating peony shells, and then extracting peony oil from the peony shells by a supercritical carbon dioxide extraction method, or extracting black pigment and lignan from the peony shells, or preparing the peony shells into activated carbon. The method provided by the invention has the beneficial effects that by adopting the supercritical carbon dioxide extraction method to extract the peony oil from the peony shells, the original discarded peony shells are converted into the peony oil of nutritional value or black pigment and lignan, or prepared into activated carbon, so that the waste is changed into valuable, the economic value is created, and the comprehensive utilization of the peony shells is realized.

Description

[0001] technical field [0002] The invention belongs to the field of utilization methods of peony shells, and in particular relates to a comprehensive utilization method of peony shells. Background technique [0003] Peony (Paeonia suffruticosa) belongs to the family Paeoniaceae and the genus Paeoniae. It is a traditional famous flower in my country and a famous flower in the world. China is not only the center of origin and distribution of wild peony species in the world, but also the cultivation center of horticultural varieties of peony in the world. [0004] Since the reform and opening up, with the strong support of the government and the joint efforts of peony scientists and technicians, my country's peony industry has been further developed. However, for a long time, my country's peonies have only been exchanged and sold as seedlings, a small number of forced flowers and fresh cut flowers. Except for ornamental and root medicine, other aspects of development and ut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00C11B1/10C07H15/18C07H1/08C09B61/00C01B31/08C01B32/324
CPCY02P20/54Y02W30/78
Inventor 张文娟赵孝庆
Owner HEZE RUIPU PENOY IND TECH DEV
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