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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10518215 B1

PDFFull Text
Date of Patent:
Dec. 31, 2019

Filed:

Nov. 09, 2017

Method for adsorbing ethylene gas using amorphous granular starch

Applicant:

South China University of Technology, Guangzhou, CN;

Inventors:

Qiang Huang, Guangzhou, CN;

Linfan Shi, Guangzhou, CN;

Bin Zhang, Guangzhou, CN;

Xiong Fu, Guangzhou, CN;

Assignee:

South China University of Technology, Guangzhou, Guangdong, CN;

Attorney:

The Dobrusin Law Firm, PC

Primary Examiner:

Anita Nassiri-Motlagh

Int. Cl.
CPC ...
B01D 53/81 (2006.01); A23B 7/152 (2006.01); B01D 53/72 (2006.01); C08J 3/12 (2006.01); C08B 31/00 (2006.01); C08B 30/06 (2006.01); B01D 53/02 (2006.01); B01J 20/24 (2006.01); A23B 7/00 (2006.01); C08B 30/12 (2006.01); B01J 20/30 (2006.01);
U.S. Cl.
CPC ...
B01D 53/81 (2013.01); A23B 7/00 (2013.01); A23B 7/152 (2013.01); B01D 53/02 (2013.01); B01D 53/72 (2013.01); B01J 20/24 (2013.01); B01J 20/3085 (2013.01); C08B 30/06 (2013.01); C08B 30/12 (2013.01); C08B 31/00 (2013.01); C08J 3/12 (2013.01); A23V 2002/00 (2013.01); B01D 2253/20 (2013.01); B01D 2257/7022 (2013.01); B01D 2259/455 (2013.01); B01D 2259/4525 (2013.01); B01J 2220/4825 (2013.01); C08J 2303/02 (2013.01); C08J 2303/04 (2013.01);
Abstract

The invention discloses a method for adsorbing ethylene gas using amorphous granular starch. The method firstly prepares amorphous granular starch, wherein starch slurry is prepared from starch with a ethanol aqueous solution and NaOH solution is added dropwise so as to react at 30 to 35° C. for 20 to 50 minutes; Then the slurry is centrifuged, neutralized with an ethanol hydrochloride solution, washed and dried to obtain the amorphous granular starch. The amorphous granular starch is placed in a high-pressure reactor and ethylene gas is introduced after the reactor is vacuumized to react at 0.8 to 1.5 Mpa and 20 to 30° C. for 15 to 25 h so that starch powder product adsorbing with ethylene is obtained. The test result shows that the content of ethylene in the obtained product can reach more than 30%. The method is simple, highly efficient and cheap for the adsorption process of ethylene, and the product is expected to be widely applied in the field of fruit and vegetable modified atmosphere preservation.

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