Title:
ENVIRONMENTALLY-FRIENDLY EXTRACTION AND PURIFICATION METHOD OF NATURAL CINNAMIC ALDEHYDE
Document Type and Number:
WIPO Patent Application WO/2016/192239
Kind Code:
A1
Abstract:
The present invention relates to the technical field of a natural product extraction and separation, and particularly relates to environmentally-friendly extraction and purification methods of natural cinnamic aldehyde. The environmentally-friendly extraction and purification methods of natural cinnamic aldehyde comprise the following steps: step 1, pre-treatment: pulverizing a cinnamon raw material into powder or preparing a slurry of the cinnamon raw material; step 2, microwave-heated distillation: add the powder or the slurry to water to obtain a cinnamon slurry, and then heating and distilling, via microwaves, the cinnamon slurry or the slurry acquired in the step 1 to obtain a gas distillate consisting of vaporized essential oil and water vapor; step 3, inclusion reaction: adding a gas distillate to a cyclodextrin solution to form an inclusion system, and then performing, by the inclusion system, an inclusion reaction to obtain an inclusion system precipitating inclusion compound crystals; step 4, collecting the inclusion compound crystals; and step 5, drying and pulverization. The environmentally-friendly extraction and purification methods of natural cinnamic aldehyde eliminate the need for an organic solvent and an expensive separation apparatus, and have the advantages of lower energy consumption, simple process, high manufacturing efficiency and high recovery rate.
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Inventors:
WU KEGANG (CN)
ZHANG HAO (CN)
ZHANG RUI (CN)
ZHANG HAO (CN)
ZHANG RUI (CN)
Application Number:
PCT/CN2015/089894
Publication Date:
December 08, 2016
Filing Date:
September 17, 2015
Export Citation:
Assignee:
UNIV GUANGDONG TECHNOLOGY (CN)
International Classes:
C07C45/78; C07C47/232; C11B9/02
Foreign References:
| CN104860804A | 2015-08-26 | |||
| CN102453610A | 2012-05-16 | |||
| CN103215121A | 2013-07-24 |
Other References:
PENG, YING: "Study on Extraction and Microencapsulation of Cinnamon Essential Oil", SCIENCE -ENGINEERING (A), CHINA MASTER'S THESES FULL-TEXT DATABASE, 31 October 2012 (2012-10-31), pages 11 - 15, ISSN: 1674-0246
FU, ZHIJUN ET AL.: "Preparation of Cinnamon Oil-beta-Cyclodextrin Inclusion Complex", CHINESE TRADITIONAL PATENT MEDICINE, vol. 16, no. 12, 20 December 1994 (1994-12-20), pages 6, ISSN: 1001-1528
ZHAO, QIAN;: "Extraction and Determination of Essential Oil Constituents from Cinnamomum Loureirii Nees", SCIENCE -ENGINEERING (A), CHINA MASTER'S THESES FULL-TEXT DATABASE, 31 March 2007 (2007-03-31), ISSN: 1674-0246
FU, ZHIJUN ET AL.: "Preparation of Cinnamon Oil-beta-Cyclodextrin Inclusion Complex", CHINESE TRADITIONAL PATENT MEDICINE, vol. 16, no. 12, 20 December 1994 (1994-12-20), pages 6, ISSN: 1001-1528
ZHAO, QIAN;: "Extraction and Determination of Essential Oil Constituents from Cinnamomum Loureirii Nees", SCIENCE -ENGINEERING (A), CHINA MASTER'S THESES FULL-TEXT DATABASE, 31 March 2007 (2007-03-31), ISSN: 1674-0246
Attorney, Agent or Firm:
DONG GUAN HUA NAN PATENT & TRADEMARK OFFICE CO., LTD. (CN)
东莞市华南专利商标事务所有限公司 (CN)
东莞市华南专利商标事务所有限公司 (CN)
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