Yuya Kumagai
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Explore the profile of Yuya Kumagai including associated specialties, affiliations and a list of published articles.
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53
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348
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Recent Articles
1.
Lang W, Yuguchi Y, Ke C, Chang T, Kumagai Y, Kaenying W, et al.
Carbohydr Polym
. 2024 Dec;
349(Pt B):122956.
PMID: 39638501
The glucoconjugation between linear chimeric α-(1→4)- and α-(1→6)-glucosidic segments exhibits functional properties throughout their structure. In this study, we enzymatically synthesized three new series of chimeric nonreducing isomaltomegalosaccharides (N-IMS-n/m), each...
2.
Yamamoto R, Toriumi S, Kawagoe C, Saburi W, Kishimura H, Kumagai Y
Biosci Biotechnol Biochem
. 2024 Apr;
88(7):830-838.
PMID: 38684478
Mycosporine-like amino acids (MAAs) are the natural UV-absorbing compounds with antioxidant activity found in microalgae and macroalgae. We collected red algae Asparagopsis taxiformis, Meristotheca japonica, and Polysiphonia senticulosa from Nagasaki,...
3.
Fujii Y, Kobayashi M, Miyabe Y, Kishimura H, Hatanaka T, Kumagai Y
Bioresour Bioprocess
. 2024 Apr;
8(1):38.
PMID: 38650209
Red alga dulse contains xylan with β(1→3)/β(1→4) linkages. We previously prepared xylooligosaccharides (XOSs) from dulse xylan; however, the product contained many D-xylose residues and fewer XOSs with β(1→3) linkages. To...
4.
Mune Mune M, Hatanaka T, Kishimura H, Kumagai Y
Molecules
. 2024 Apr;
29(7).
PMID: 38611816
In this study, the α-glucosidase (maltase-glucoamylase: MGAM) and α-amylase inhibitory properties elicited by xylooligosaccharides (XOSs) prepared from dulse xylan were analysed as a potential mechanism to control postprandial hyperglycaemia for...
5.
Lang W, Tagami T, Kumagai Y, Tanaka S, Kang H, Okuyama M, et al.
Carbohydr Polym
. 2023 Aug;
319:121185.
PMID: 37567719
Isomaltomegalosaccharides with α-(1 → 4) and α-(1 → 6)-segments solubilize water-insoluble ligands since the former complexes with the ligand and the latter solubilizes the complex. Previously, we enzymatically synthesized isomaltomegalosaccharide...
6.
Park J, Han J, Shin Y, Park Y, Shin Y, Park S, et al.
Mar Drugs
. 2023 Jun;
21(6).
PMID: 37367653
In this study, we characterized the bioactive properties of three important brown seaweed species, , , and , by subcritical water extraction (SWE), as these species are well known for...
7.
Mune Mune M, Miyabe Y, Shimizu T, Matsui W, Kumagai Y, Kishimura H
Mar Drugs
. 2023 Jan;
21(1).
PMID: 36662222
In this study, we studied the bioactive peptides produced by thermolysin hydrolysis of a water-soluble protein (WSP) from the red alga , whose major components are phycobiliproteins and Ribulose-1,5-bisphosphate carboxylase-oxygenase...
8.
Jiang Z, Mou H, Kumagai Y, Kishimura H
Front Bioeng Biotechnol
. 2022 Nov;
10:1037283.
PMID: 36394043
No abstract available.
9.
Lang W, Kumagai Y, Habu S, Sadahiro J, Tagami T, Okuyama M, et al.
Carbohydr Polym
. 2022 Jun;
291:119562.
PMID: 35698333
Isomaltomegalosaccharide (IMS) is a long chimeric glucosaccharide composed of α-(1 → 6)- and α-(1 → 4)-linked segments at nonreducing and reducing ends, respectively; the hydrophilicity and hydrophobicity of these segments...
10.
Kumagai Y, Kishimura H, Lang W, Tagami T, Okuyama M, Kimura A
Mar Drugs
. 2022 Apr;
20(4).
PMID: 35447923
The glycoside hydrolase family 17 β-1,3-glucanase of (VvGH17) has two unknown regions in the N- and C-termini. Here, we characterized these domains by preparing mutant enzymes. VvGH17 demonstrated hydrolytic activity...