Patents by Inventor In Geol Choi

In Geol Choi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11976314
    Abstract: The present invention relates to a transformed strain having ethanol production potential, constructed by introducing a foreign gene for ethanol production into a non-ethanol producing acetogen Eubacterium limosum and a method for producing ethanol, using the strain. According to the present invention, Eubacterium limosum which is a conventional acetogen lacking ethanol production potential is used to produce ethanol, which is a high value-added product, as a single product from carbon monoxide contained in waste gas.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: May 7, 2024
    Assignees: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY, KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: In Seop Chang, Jiyeong Jeong, Shinyoung Park, In-Geol Choi, Byeonghyeok Park
  • Publication number: 20230193325
    Abstract: The present invention relates to a transformed strain having ethanol production potential, constructed by introducing a foreign gene for ethanol production into a non-ethanol producing acetogen Eubacterium limosum and a method for producing ethanol, using the strain. According to the present invention, Eubacterium limosum which is a conventional acetogen lacking ethanol production potential is used to produce ethanol, which is a high value-added product, as a single product from carbon monoxide contained in waste gas.
    Type: Application
    Filed: August 28, 2018
    Publication date: June 22, 2023
    Inventors: In Seop CHANG, Ju Yeong JEONG, Shinyoung PARK, In-Geol CHOI, Byeonghyeok PARK
  • Patent number: 11118202
    Abstract: The present invention relates to a novel method for purifying 3,6-anhydro-L-galactose by using microorganisms and provides an effect of improving the production yield of 3,6-anhydro-L-galactose by using microorganisms during purification after enzymatic hydrolysis of agarose or agar.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: September 14, 2021
    Assignee: Korea University Research and Business Foundation
    Inventors: Kyoung Heon Kim, In-Geol Choi, Sora Yu, Eun-Ju Yun, Kyung-mun Cho
  • Publication number: 20210135268
    Abstract: An electrode for an enzymatic biofuel cell may include: a substrate; an electrode positioned on the substrate; and an enzyme pattern containing an enzyme in which a metal-immobilized peptide is expressed positioned on the electrode. The metal-immobilized peptide expressed at the enzyme active site strongly binds to metal deposited electrode surface. In this manner, the enzyme active site facing to electrode was controlled to be in close proximity such that electron transfer efficiency of the electrode can improve.
    Type: Application
    Filed: May 9, 2019
    Publication date: May 6, 2021
    Inventors: In Seop CHANG, Yoo Seok LEE, In Geol CHOI, Seung Woo BAEK
  • Patent number: 10655118
    Abstract: The present invention relates to a heat-resistant agarase and a monosaccharide production method using same. More particularly, in the present invention, a heat-resistant agarase may be used to produce galactose and 3,6-anhydro-L-galactose at high yield by efficiently breaking down agarose or agar without a chemical pretreatment, a neutralization process, or an agarotriose hydrolase treatment process.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: May 19, 2020
    Assignee: Korea University Research and Business Foundation
    Inventors: Kyoung Heon Kim, In-Geol Choi, Jung Hyun Kim, Eun-Ju Yun
  • Patent number: 10639261
    Abstract: The present invention relates to a method for preparing 3,6-anhydro-L-galactose, and use thereof. More specifically, 3,6-anhydro-L-galactose, which is a monosaccharide constituting agar, is produced in a high yield through chemical and enzymatic methods, and the physiological activities thereof such as whitening, moisturizing, antioxidant, antiinflammatory activities and the like are displayed, thereby enabling industrial use thereof.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: May 5, 2020
    Assignee: Korea University Research and Business Foundation
    Inventors: Kyoung Heon Kim, In Geol Choi, Nam Joo Kang, Eun-Ju Yun, Sae Young Lee, Ji Hye Kim, Young Ah Kim, Bo Bae Kim, Eun Ji Baek
  • Patent number: 10548828
    Abstract: The present invention relates to a use of 3,6-anhydro-L-galactose for preventing dental caries. More specifically, 3,6-anhydro-L-galactose inhibits the growth of oral microorganisms and exhibits anti-caries activity to inhibit the production of acids caused by the consumption of a carbon source by the oral microorganisms. Thus, 3,6-anhydro-L-galactose can be used in pharmaceuticals, food products, oral hygiene preparations, etc. for preventing, ameliorating or treating oral diseases caused by oral microorganisms, such as dental caries, gingivitis, periodontitis, oral mucosal ulcer, halitosis or xerostomia.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: February 4, 2020
    Assignee: Korea University Research and Business Foundation
    Inventors: Kyoung Heon Kim, In-Geol Choi, Eun-Ju Yun, Ah-Reum Lee
  • Publication number: 20190024069
    Abstract: The present invention relates to a heat-resistant agarase and a monosaccharide production method using same. More particularly, in the present invention, a heat-resistant agarase may be used to produce galactose and 3,6-anhydro-L-galactose at high yield by efficiently breaking down agarose or agar without a chemical pretreatment, a neutralization process, or an agarotriose hydrolase treatment process.
    Type: Application
    Filed: January 17, 2017
    Publication date: January 24, 2019
    Applicant: Korea University Research and Business Foundation
    Inventors: Kyoung Heon KIM, In-Geol CHOI, Jung Hyun KIM, Eun-Ju YUN
  • Publication number: 20180344607
    Abstract: The present invention relates to a method for preparing 3,6-anhydro-L-galactose, and use thereof. More specifically, 3,6-anhydro-L-galactose, which is a monosaccharide constituting agar, is produced in a high yield through chemical and enzymatic methods, and the physiological activities thereof such as whitening, moisturizing, antioxidant, antiinflammatory activities and the like are displayed, thereby enabling industrial use thereof.
    Type: Application
    Filed: August 10, 2018
    Publication date: December 6, 2018
    Applicant: Korea University Research and Business Foundation
    Inventors: Kyoung Heon Kim, In-Geol Choi, Nam Joo Kang, Eun-Ju Yun, Sae Young Lee, Ji Hye Kim, Young Ah Kim, Bo Bae Kim, Eun Ji Baek
  • Publication number: 20180280272
    Abstract: The present invention relates to a use of 3,6-anhydro-L-galactose for preventing dental caries. More specifically, 3,6-anhydro-L-galactose inhibits the growth of oral microorganisms and exhibits anti-caries activity to inhibit the production of acids caused by the consumption of a carbon source by the oral microorganisms. Thus, 3,6-anhydro-L-galactose can be used in pharmaceuticals, food products, oral hygiene preparations, etc. for preventing, ameliorating or treating oral diseases caused by oral microorganisms, such as dental caries, gingivitis, periodontitis, oral mucosal ulcer, halitosis or xerostomia.
    Type: Application
    Filed: October 14, 2016
    Publication date: October 4, 2018
    Applicant: Korea University Research and Business Foundation
    Inventors: Kyoung Heon Kim, In-Geol Choi, Eun-Ju Yun, Ah-Reum Lee
  • Patent number: 10071041
    Abstract: The present invention relates to a method for preparing 3,6-anhydro-L-galactose, and use thereof. More specifically, 3,6-anhydro-L-galactose, which is a monosaccharide constituting agar, is produced in a high yield through chemical and enzymatic methods, and the physiological activities thereof such as whitening, moisturizing, antioxidant, anti-inflammatory activities and the like are displayed, thereby enabling industrial use thereof.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: September 11, 2018
    Assignee: Korea University Research and Business Foundation
    Inventors: Kyoung Heon Kim, In Geol Choi, Nam Joo Kang, Eun Ju Yun, Sae Young Lee, Ji Hye Kim, Young Ah Kim, Bo Bae Kim, Eun Ji Baek
  • Patent number: 9902983
    Abstract: The present invention relates to agarooligosaccharide hydrolase and a method for producing 3,6-anhydro-L-galactose and galactose from agarose by using the same. More specifically, the production yield of 3,6-anhydro-L-galactose and galactose from agarose, that is, the saccharification yield, is improved by using ?-agarooligosaccharide hydrolase having an agarotriose hydrolytic activity.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: February 27, 2018
    Assignee: Korea University Research and Business Foundation
    Inventors: Kyoung Heon Kim, In-Geol Choi, Chan Hyoung Lee, Hee Taek Kim, Eun-Ju Yun
  • Publication number: 20170360671
    Abstract: The present invention relates to a method for preparing 3,6-anhydro-L-galactose, and use thereof. More specifically, 3,6-anhydro-L-galactose, which is a monosaccharide constituting agar, is produced in a high yield through chemical and enzymatic methods, and the physiological activities thereof such as whitening, moisturizing, antioxidant, anti-inflammatory activities and the like are displayed, thereby enabling industrial use thereof.
    Type: Application
    Filed: August 29, 2017
    Publication date: December 21, 2017
    Applicant: Korea University Research and Business Foundation
    Inventors: Kyoung Heon Kim, In Geol Choi, Nam Joo Kang, Eun Ju Yun, III, Sae Young Lee, Ji Hye Kim, Young Ah Kim, Bo Bae Kim, Eun Ji Baek
  • Patent number: 9637761
    Abstract: The present invention relates to a recombinant microorganism metabolizing 3,6-anhydro-L-galactose and a use thereof, and, more particularly, can produce ethanol from a recombinant microorganism expressing an enzyme group involved in a metabolic pathway of 3,6-AHG.
    Type: Grant
    Filed: May 7, 2014
    Date of Patent: May 2, 2017
    Assignee: Korea University Research and Business Foundation
    Inventors: Kyoung Heon Kim, In-Geol Choi, Eun-Ju Yun, Sae Young Lee, Hee Taek Kim
  • Publication number: 20170071841
    Abstract: The present invention relates to a method for preparing 3,6-anhydro-L-galactose, and use thereof. More specifically, 3,6-anhydro-L-galactose, which is a monosaccharide constituting agar, is produced in a high yield through chemical and enzymatic methods, and the physiological activities thereof such as whitening, moisturizing, antioxidant, anti-inflammatory activities and the like are displayed, thereby enabling industrial use thereof.
    Type: Application
    Filed: November 15, 2016
    Publication date: March 16, 2017
    Applicant: Korea University Research and Business Foundation
    Inventors: Kyoung Heon Kim, In Geol Choi, Nam Joo Kang, Eun Ju Yun, Sae Young Lee, Ji Hye Kim, Young Ah Kim, Bo Bae Kim, Eun Ji Baek
  • Patent number: 9487770
    Abstract: The present invention provides Hahella chejuensis-derived recombinant cellulase and a use thereof. The recombinant cellulase according to the present invention has a high stability at a high temperature and an optimized activity at a neutral pH, and therefore has a high availability in a process. Also, since the cellulase according to the present invention has an exoglucanase activity as well as an endoglucanase activity, a monosaccharide can be produced during decomposition of cellulose and an additional treatment required in a fermentation process is not needed, and therefore a cost may be reduced. Such an enzyme activity is advantageous to a fermentation or thermal treatment condition for producing a biofuel, and therefore industrial profits may be achieved.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: November 8, 2016
    Assignee: Korea University Research and Business Foundation
    Inventors: Kyoung Heon Kim, In-Geol Choi, Hee Jin Lee, In Jung Kim
  • Publication number: 20160279156
    Abstract: The present invention relates to a composition for preventing or treating colon cancer, containing 3,6-anhydro-L-galactose, and more specifically, provides excellent anti-cancer effects by inducing apoptosis of colon cancer cells and inhibiting the growth of colon cancer cells by using 3,6-anhydro-L-galactose separated from red algae-derived agar and purified.
    Type: Application
    Filed: March 11, 2014
    Publication date: September 29, 2016
    Applicant: Korea University Research and Business Foundation
    Inventors: Nam Joo Kang, Kyoung Heon Kim, In-Geol Choi, Young Ah Kim, Eun-Ju Yun, Sae Young Lee
  • Publication number: 20160265012
    Abstract: The present invention relates to agarooligosaccharide hydrolase and a method for producing 3,6-anhydro-L-galactose and galactose from agarose by using the same. More specifically, the production yield of 3,6-anhydro-L-galactose and galactose from agarose, that is, the saccharification yield, is improved by using ?-agarooligosaccharide hydrolase having an agarotriose hydrolytic activity.
    Type: Application
    Filed: October 8, 2014
    Publication date: September 15, 2016
    Applicant: Korea University Research and Business Foundation
    Inventors: Kyoung Heon Kim, In-Geol Choi, Chan Hyoung Lee, Hee Taek Kim, Eun-Ju Yun
  • Publication number: 20160115504
    Abstract: The present invention relates to a recombinant microorganism metabolizing 3,6-anhydro-L-galactose and a use thereof, and, more particularly, can produce ethanol from a recombinant microorganism expressing an enzyme group involved in a metabolic pathway of 3,6-AHG.
    Type: Application
    Filed: May 7, 2014
    Publication date: April 28, 2016
    Applicant: Korea University Research and Business Foundation
    Inventors: Kyoung Heon Kim, In-Geol Choi, Eun-Ju Yun, Sae Young Lee, Hee Taek Kim
  • Publication number: 20160097043
    Abstract: The present invention provides Hahella chejuensis-derived recombinant cellulase and a use thereof. The recombinant cellulase according to the present invention has a high stability at a high temperature and an optimized activity at a neutral pH, and therefore has a high availability in a process. Also, since the cellulase according to the present invention has an exoglucanase activity as well as an endoglucanase activity, a monosaccharide can be produced during decomposition of cellulose and an additional treatment required in a fermentation process is not needed, and therefore a cost may be reduced. Such an enzyme activity is advantageous to a fermentation or thermal treatment condition for producing a biofuel, and therefore industrial profits may be achieved.
    Type: Application
    Filed: April 25, 2014
    Publication date: April 7, 2016
    Applicant: Korea University Research and Business Foundation
    Inventors: Kyoung Heon Kim, In-Geol Choi, Hee Jin Lee, In Jung Kim