Patents by Inventor EUN JU YUN

EUN JU YUN 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: 12110494
    Abstract: The present invention relates to a method for biologically producing, from seaweeds, 3,6-anhydro-L-galactitol (L-AHGol) which is a novel sugar alcohol, and agarobititol (ABol) which is in a disaccharide form having 3,6-anhydro-L-galactitol (L-AHGol) as a reducing end, by using a genetic engineering technique in GRAS strains.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: October 8, 2024
    Assignee: Korea University Research and Business Foundation
    Inventors: Kyoung Heon Kim, Yong Su Jin, Dong-Hyun Kim, Eun-Ju Yun
  • Publication number: 20240294891
    Abstract: The present invention relates to a strain that produces neoagarooligosaccharides from agarose, which is a representative polysaccharide constituting red algae, using Saccharomyces boulardii, which is a probiotic yeast, a production method thereof, and a use thereof. The present invention aims to achieve synbiotics through the production of prebiotic substances using probiotic strains and can be used as an intestinal microbial factory.
    Type: Application
    Filed: June 20, 2022
    Publication date: September 5, 2024
    Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Kyoung Heon KIM, So Ra YU, Ye Rin JIN, Eun Ju YUN
  • Patent number: 12077792
    Abstract: Compositions and methods are provided for producing 2?fucosyliaciose and L-fucose from recombinant microorganisms.
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: September 3, 2024
    Assignees: The Board of Trustees of the University of Illinois, Korea University Research and Business Foundation
    Inventors: Yong-Su Jin, Jingjing Liu, Sora Yu, Eun Ju Yun, Suryang Kwak, Kyoung Heon Kim, Jaewon Lee
  • Publication number: 20240279263
    Abstract: The present invention identifies moisturizing and physiological activities of agarobiose and provides a novel substance alkyl-agarobioside for maintaining moisturization activity of agarbiose and securing both pH and temperature stability, and a preparation method therefor. According to the present invention, alkyl-agarobioside can be produced in a cost-efficient manner as a moisturizing material for foods, medicinal products, and cosmetic products.
    Type: Application
    Filed: May 9, 2022
    Publication date: August 22, 2024
    Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Kyoung Heon KIM, Eun Ju YUN, Sun Hee LEE, Nam Joo KANG
  • Publication number: 20240052296
    Abstract: The present invention relates to an optimum method for mass-producing colanic acid by changes in the genetic factors of the strain and the environmental factors of the strain culture. The biological production amount of colanic acid can be significantly increased using the recombinant strain and culture conditions of the present invention.
    Type: Application
    Filed: August 15, 2022
    Publication date: February 15, 2024
    Applicant: Korea University Research and Business Foundation
    Inventors: Kyoung Heon KIM, Eun Ju YUN, Yoon Ho CHO, So Ra YU
  • Patent number: 11872253
    Abstract: The present invention relates to a method for producing marine algae-derived agarotriose, and a use thereof as a prebiotic. More specifically, the present invention investigates the characteristics of agarotriose as a prebiotic which is selectively metabolized by probiotic microorganisms, thereby enabling agarotriose to be used as an anti-cancer or anti-inflammatory agent in the fields of food and pharmaceuticals, and enabling agarotriose to be obtained at high yield through efficient purification with minimal loss after enzymatic hydrolysis of a red algae-derived polysaccharide without pre-treatment.
    Type: Grant
    Filed: April 19, 2022
    Date of Patent: January 16, 2024
    Assignee: Korea University Research and Business Foundation
    Inventors: Kyoung Heon Kim, Yong-Su Jin, Eun-Ju Yun, Dong-Hyun Kim, Sora Yu, Kyung-Mun Cho, Na Jeong Park
  • Patent number: 11504386
    Abstract: The present invention relates to a preparation method for various novel fucosyl oligosaccharides and a use thereof. More specifically, the present invention allows a preparation of various novel fucosyl oligosaccharides through an enzymatic reaction with ?-1,2-fucosyltransferase using a GDP-L-fucose donor and various glucose acceptors and an establishment of probiotic characteristics thereof, and thus has an effect of providing uses as materials for medicines, food, cosmetic products, and the like.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: November 22, 2022
    Assignee: Korea University Research and Business Foundation
    Inventors: Kyoung Heon Kim, Yong-Su Jin, Eun-Ju Yun, Sora Yu, Jaewon Lee
  • Patent number: 11479796
    Abstract: The present invention relates to a method for chemical production of 3,6-anhydro-L-galactitol (L-AHGoI), which is a novel sugar alcohol, and agarobititol (ABol), which is a disaccharide having the same agarobititol as a reductant end thereof, from sea algae.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: October 25, 2022
    Assignee: Korea Univercity Research and Business Foundation
    Inventors: Kyoung Heon Kim, Dong Hyun Kim, Eun-Ju Yun
  • Patent number: 11458152
    Abstract: The present invention relates to a use of an agarobiose or agarooligosaccharides having anticariogenic activity. More specifically, a lower concentration of agarobiose or agarooligosaccharides than the concentration of xylitol suppresses the growth of Streptococcus mutans and suppresses acid production, and thus can be used for anti-cariogenic purposes.
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: October 4, 2022
    Assignee: Korea University Research and Business Foundation
    Inventors: Kyoung Heon Kim, Eun-Ju Yun, Sora Yu, Dong-Hyun Kim, Sang-Hyun Lee, Jung Yeon Kim
  • Publication number: 20220241349
    Abstract: The present invention relates to a method for producing marine algae-derived agarotriose, and a use thereof as a prebiotic. More specifically, the present invention investigates the characteristics of agarotriose as a prebiotic which is selectively metabolized by probiotic microorganisms, thereby enabling agarotriose to be used as an anti-cancer or anti-inflammatory agent in the fields of food and pharmaceuticals, and enabling agarotriose to be obtained at high yield through efficient purification with minimal loss after enzymatic hydrolysis of a red algae-derived polysaccharide without pre-treatment.
    Type: Application
    Filed: April 19, 2022
    Publication date: August 4, 2022
    Applicant: Korea University Research and Business Foundation
    Inventors: Kyoung Heon KIM, Yong-Su Jin, Eun-Ju Yun, Dong-Hyun Kim, Sora Yu, Kyung-mun Cho, Na Jeong Park
  • Publication number: 20220220490
    Abstract: The present invention relates to a method for biologically producing, from seaweeds, 3,6-anhydro-L-galactitol (L-AHGol) which is a novel sugar alcohol, and agarobititol (ABol) which is in a disaccharide form having 3,6-anhydro-L-galactitol (L-AHGol) as a reducing end, by using a genetic engineering technique in GRAS strains.
    Type: Application
    Filed: September 5, 2019
    Publication date: July 14, 2022
    Applicant: Korea University Research and Business Foundation
    Inventors: Kyoung Heon KIM, Yong Su JIN, Dong-Hyun KIM, Eun-Ju YUN
  • Publication number: 20220213520
    Abstract: The present invention relates to a medium composition for culturing a strain for mass production of colanic acid and a method of mass producing colanic acid using the same. Ingredients for the culture medium of the present invention and their concentrations may be optimized using a statistical method, and used to greatly increase the production amount of colanic acid.
    Type: Application
    Filed: April 24, 2020
    Publication date: July 7, 2022
    Applicant: Korea University Research and Business Foundation
    Inventors: Kyoung Heon KIM, Yong-Su JIN, Eun Ju YUN, In Jung KIM, Hyeong Min HAN, Sora YU
  • Patent number: 11337999
    Abstract: The present invention relates to a method for producing marine algae-derived agarotriose, and a use thereof as a prebiotic. More specifically, the present invention investigates the characteristics of agarotriose as a prebiotic which is selectively metabolized by probiotic microorganisms, thereby enabling agarotriose to be used as an anti-cancer or anti-inflammatory agent in the fields of food and pharmaceuticals, and enabling agarotriose to be obtained at high yield through efficient purification with minimal loss after enzymatic hydrolysis of a red algae-derived polysaccharide without pre-treatment.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: May 24, 2022
    Assignee: Korea University Research and Business Foundation
    Inventors: Kyoung Heon Kim, Yong-Su Jin, Eun-Ju Yun, Dong-Hyun Kim, Sora Yu, Kyung-mun Cho, Na Jeong Park
  • Patent number: 11268114
    Abstract: The present invention relates to a method for producing anhydrous galactose derived from seaweed, and provides an improved production yield rate of 3,6-anhydro-L-galactose by using microorganisms during acid treatment, neutralization, and purification after enzymatic hydrolysis, of agarose or agar.
    Type: Grant
    Filed: November 24, 2017
    Date of Patent: March 8, 2022
    Assignee: Korea University Research and Business Foundation
    Inventors: Kyoung Heon Kim, Sang-Hyun Lee, Dong-Hyun Kim, Eun-Ju Yun
  • Publication number: 20210317492
    Abstract: The present invention relates to a method for chemical production of 3,6-anhydro-L-galactitol (L-AHGoI), which is a novel sugar alcohol, and agarobititol (ABol), which is a disaccharide having the same agarobititol as a reductant end thereof, from sea algae.
    Type: Application
    Filed: September 5, 2019
    Publication date: October 14, 2021
    Applicant: Korea University Research and Business Foundation
    Inventors: Kyoung Heon KIM, Dong Hyun KIM, Eun-Ju YUN
  • 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: 20210214705
    Abstract: Compositions and methods are provided for producing 2?fucosyliaciose and L-fucose from recombinant microorganisms.
    Type: Application
    Filed: May 15, 2019
    Publication date: July 15, 2021
    Applicants: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS, KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Yong-Su JIN, Jingjing LIU, Sora YU, Eun Ju YUN, Suryang KWAK, Kyoung Heon KIM, Jaewon LEE
  • Patent number: 11008332
    Abstract: A composition for preventing or treating an aging-related disease includes a novel decursin derivative as an active ingredient, wherein the novel decursin derivative has exhibited an excellent effect of inhibiting progerin expression and excellent effect of inhibiting binding between progerin and lamin A, and it has been confirmed that the novel decursin derivative prolongs the survival period of animal models in which progerin was induced.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: May 18, 2021
    Assignee: PRG S&TECH INC
    Inventors: Bum Joon Park, Gyu Yong Song, Yu Seok O, Jee Hyun Lee, Eun Ju Yun
  • Publication number: 20200376012
    Abstract: The present invention relates to a use of an agarobiose or agarooligosaccharides having anticariogenic activity. More specifically, a lower concentration of agarobiose or agarooligosaccharides than the concentration of xylitol suppresses the growth of Streptococcus mutans and suppresses acid production, and thus can be used for anti-cariogenic purposes.
    Type: Application
    Filed: August 5, 2020
    Publication date: December 3, 2020
    Applicant: Korea University Research and Business Foundation
    Inventors: Kyoung Heon Kim, Eun-Ju Yun, Sora Yu, Dong-Hyun Kim, Sang-Hyun Lee, Jung Yeon Kim
  • Publication number: 20200360447
    Abstract: The present invention relates to a method for producing marine algae-derived agarotriose, and a use thereof as a prebiotic. More specifically, the present invention investigates the characteristics of agarotriose as a prebiotic which is selectively metabolized by probiotic microorganisms, thereby enabling agarotriose to be used as an anti-cancer or anti-inflammatory agent in the fields of food and pharmaceuticals, and enabling agarotriose to be obtained at high yield through efficient purification with minimal loss after enzymatic hydrolysis of a red algae-derived polysaccharide without pre-treatment.
    Type: Application
    Filed: November 15, 2018
    Publication date: November 19, 2020
    Applicant: Korea University Research and Business Foundation
    Inventors: Kyoung Heon KIM, Yong-Su JIN, Eun-Ju YUN, Dong-Hyun KIM, Sora YU, Kyung-mun CHO, Na Jeong PARK