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公开(公告)号：US20200071737A1
公开(公告)日：2020-03-05
申请号：US16467129
申请日：2017-11-24
Inventor： Kyoung Heon KIM , Sang-Hyun LEE , Dong-Hyun KIM , Eun-Ju YUN
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.
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12.发明公开公开(公告)号：US20240279263A1
公开(公告)日：2024-08-22
申请号：US18289972
申请日：2022-05-09
Inventor： Kyoung Heon KIM , Eun Ju YUN , Sun Hee LEE , Nam Joo KANG
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.
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公开(公告)号：US20240052296A1
公开(公告)日：2024-02-15
申请号：US17819767
申请日：2022-08-15
Inventor： Kyoung Heon KIM , Eun Ju YUN , Yoon Ho CHO , So Ra YU
CPC classification number: C12N1/20 , C12N15/102 , C12N2500/34 , C12N2510/02
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.
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公开(公告)号：US20220282237A1
公开(公告)日：2022-09-08
申请号：US17637277
申请日：2020-08-25
Inventor： Kyoung Heon KIM , Ki Hyun NAM , Do Hyoung KIM , In Jeong KIM
Abstract: The present invention relates to a novel fucose isomerase and a fucose production method using same. More specifically, in a reversible reaction between L-fucose and L-fuculose, an L-fucose isomerase, derived from a Raoultella sp. KDH 14 strain isolated from abalone intestines, favors the reaction progressing from L-fuculose to L-fucose, and thus the present invention provides the effect of applying same to the production of L-fucose.
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公开(公告)号：US20220243188A1
公开(公告)日：2022-08-04
申请号：US17595616
申请日：2020-05-21
Inventor： Kyoung Heon KIM , Do Hyoung KIM
Abstract: The present invention relates to use of an enzyme that cleaves both alpha- and beta-1,4-glycosidic bonds and, more particularly, the present invention provides α-L-fucosidase which has α-1,4-glucosidase and β-1,4-galactosidase activities and thus is capable of producing glucose and/or galactose, which are monosaccharides, from non-fucosylated saccharides. The enzyme has transglycosylation activity and thus produces maltooligosaccharides having a higher degree of polymerization than maltooligosaccharides used as a substrate, thereby being applicable to the development of high-value-added new materials in the food industry.
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Patent Agency Ranking
公开(公告)号：US20220220490A1
公开(公告)日：2022-07-14
申请号：US17273621
申请日：2019-09-05
Inventor： Kyoung Heon KIM , Yong Su JIN , Dong-Hyun KIM , Eun-Ju YUN
IPC: C12N15/81 , C07K14/195 , C12N9/38 , C12P7/18
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.
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公开(公告)号：US20200078383A1
公开(公告)日：2020-03-12
申请号：US16349885
申请日：2017-11-15
Inventor： Kyoung Heon KIM , Eun-Ju YUN , Sora YU , Dong-Hyun KIM , Sang-Hyun LEE , Jung Yeon KIM
IPC: A61K31/702 , A61K31/7016 , A61K31/729 , A61K8/73 , A61Q11/00 , A61P31/04 , A61K8/60 , A61P1/02 , A61K9/00 , A23L33/125
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.
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18.发明公开公开(公告)号：US20240229084A9
公开(公告)日：2024-07-11
申请号：US18278976
申请日：2022-02-25
Inventor： Kyoung Heon KIM , Dong Hyun KIM , Jae Kyun KIM , Dong Oh HAN
IPC: C12P7/42 , C07C67/297
CPC classification number: C12P7/42 , C07C67/297
Abstract: The present invention relates to a chemical and biological integrated degradation process for PET, for recycling PET, and, more specifically, the present invention provides a PET upcycling technique for producing a high-value product via a chemical pretreatment process of PET, a TPA and EG production process using an enzyme, and a process for converting TPA and EG to PCA and GLA, respectively.
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公开(公告)号：US20220241349A1
公开(公告)日：2022-08-04
申请号：US17724386
申请日：2022-04-19
Inventor： Kyoung Heon KIM , Yong-Su Jin , Eun-Ju Yun , Dong-Hyun Kim , Sora Yu , Kyung-mun Cho , Na Jeong Park
IPC: A61K35/74 , A23L33/125 , A23L33/135 , A23L33/00 , A61K35/745 , A61K47/26 , C12P19/00
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.
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公开(公告)号：US20220220522A1
公开(公告)日：2022-07-14
申请号：US17586649
申请日：2022-01-27
Inventor： Kyoung Heon KIM , Sung-Hyun Lee , Dong-Hyun Kim , Enu-Ju Yun
Abstract: The present invention relates to a method for producing anhydrous galactose derived from seaweed, and provides an improved production yield of 3,6-anhydro-L-galactose (AHG) from agarose or agar through multiple steps involving acid hydrolysis of agar or agarose for producing agarobiose, neutralization of the acid hydrolysate, and purification of AHG using a microorganism metabolizing galactose after enzymatic hydrolysis of agarobiose.
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