Chain flexibility and branching effects on arabinogalactan conformation in solution

Huang, Hai; Wu, Mengqi; Takahashi, Rintaro; Zhang, Wenqing; Terao, Ken

doi:https://doi.org/10.1016/j.carbpol.2025.124371

Chain flexibility and branching effects on arabinogalactan conformation in solution

Huang, Hai; Wu, Mengqi; Takahashi, Rintaro et al.

Carbohydrate Polymers, 2025, 370, 124371

アクセス数:87件（2026-02-16 14:28 集計）

固定URL: https://hdl.handle.net/11094/102845

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タイトル	Chain flexibility and branching effects on arabinogalactan conformation in solution
著者	著者名 Huang, Hai
	著者名 Wu, Mengqi
	NRID 1000010794125 1000010794125 ORCID 0000-0003-2168-9436 0000-0003-2168-9436 researchmap permalink takahashirintaro takahashirintaro Scopus Author ID 7401848988 7401848988 著者名 Takahashi, Rintaro
	著者名 Zhang, Wenqing
	NRID 1000060334132 1000060334132 ORCID 0000-0001-7363-4491 0000-0001-7363-4491 researchmap permalink kenterao kenterao Scopus Author ID 7101653015 7101653015 著者名 Terao, Ken
キーワード等	Arabinogalactan
	Form factor
	Hydrodynamic radius
	Intrinsic viscosity
	Radius of gyration
	Small-angle X-ray scattering
内容	Huang H., Wu M., Takahashi R., et al. Chain flexibility and branching effects on arabinogalactan conformation in solution. Carbohydrate Polymers 370, 124371 (2025); https://doi.org/10.1016/j.carbpol.2025.124371.
抄録	The structural and conformational characteristics of three arabinogalactans were investigated in aqueous and aprotic organic solutions using small-angle X-ray scattering (SAXS), dynamic light scattering, and viscosity measurements. This study aimed to clarify the dimensional and hydrodynamic properties related to the branching structure of a type II arabinogalactan extracted from jasmine tea leaves by comparing it with linear arabinogalactan (LG) and highly branched larch arabinogalactan (LAG60) samples. The obtained form factor P(q) and the radius of gyration Rg for LG were analyzed in terms of the wormlike chain model with the Kuhn segment length of 2.80 nm, a measure of chain stiffness. This result indicates higher chain flexibility than that of polysaccharides whose backbone consists of 1,4-linked hexoses in a good solvent. The P(q) data of the other two arabinogalactans, LAG60 and JSP-1a, which have short branches, were well described by the hyperbranched chain model. This model considers the fractal dimensions of partial chains in good solvent systems. The model uses a fixed number of branching points that exclude the contribution of single-sugar-residue branches. In addition, the hydrodynamic properties and the second virial coefficient were consistent with the P(q) and Rg results.
出版者	Elsevier Ltd
収録物名	Carbohydrate Polymers
巻(号)	370
ページ	124371
刊行年月	2025-09-15
言語	英語
ハンドルURL	https://hdl.handle.net/11094/102845
PISSN	01448617
eISSN	18791344
関連情報 (isIdenticalTo)	DOI (出版社版) https://doi.org/10.1016/j.carbpol.2025.124371
アクセス権	open access
権利情報	This article is licensed under a Creative Commons Attribution 4.0 International License.
出版タイプ	Version of Record
カテゴリ	学術雑誌論文 Journal Article

資源タイプ	学術雑誌論文
ローカル資源タイプ	学術雑誌論文
DCMI資源タイプ	text
DCTERMS.bibliographicCitation	Carbohydrate Polymers. 2025, 370, p. 124371
DC.title	Chain flexibility and branching effects on arabinogalactan conformation in solution
DC.creator	Huang, Hai
	Wu, Mengqi
	Takahashi, Rintaro
	Zhang, Wenqing
	Terao, Ken
DC.publisher	Elsevier Ltd
DC.language' scheme='DCTERMS.RFC1766	英語
DC.type' scheme='DCTERMS.DCMIType	text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2025-09-15
DC.identifier	https://doi.org/10.1016/j.carbpol.2025.124371
DC.subject	Arabinogalactan
	Form factor
	Hydrodynamic radius
	Intrinsic viscosity
	Radius of gyration
	Small-angle X-ray scattering
DC.description	Huang H., Wu M., Takahashi R., et al. Chain flexibility and branching effects on arabinogalactan conformation in solution. Carbohydrate Polymers 370, 124371 (2025); https://doi.org/10.1016/j.carbpol.2025.124371.
DCTERMS.abstract	The structural and conformational characteristics of three arabinogalactans were investigated in aqueous and aprotic organic solutions using small-angle X-ray scattering (SAXS), dynamic light scattering, and viscosity measurements. This study aimed to clarify the dimensional and hydrodynamic properties related to the branching structure of a type II arabinogalactan extracted from jasmine tea leaves by comparing it with linear arabinogalactan (LG) and highly branched larch arabinogalactan (LAG60) samples. The obtained form factor P(q) and the radius of gyration Rg for LG were analyzed in terms of the wormlike chain model with the Kuhn segment length of 2.80 nm, a measure of chain stiffness. This result indicates higher chain flexibility than that of polysaccharides whose backbone consists of 1,4-linked hexoses in a good solvent. The P(q) data of the other two arabinogalactans, LAG60 and JSP-1a, which have short branches, were well described by the hyperbranched chain model. This model considers the fractal dimensions of partial chains in good solvent systems. The model uses a fixed number of branching points that exclude the contribution of single-sugar-residue branches. In addition, the hydrodynamic properties and the second virial coefficient were consistent with the P(q) and Rg results.
DC.rights	This article is licensed under a Creative Commons Attribution 4.0 International License.
DC.format	102845
citation_title	Chain flexibility and branching effects on arabinogalactan conformation in solution
citation_author	Huang, Hai
	Wu, Mengqi
	Takahashi, Rintaro
	Zhang, Wenqing
	Terao, Ken
citation_publisher	Elsevier Ltd
citation_language	英語
citation_date	2025-09-15
citation_journal_title	Carbohydrate Polymers
citation_volume	370
citation_firstpage	124371
citation_doi	https://doi.org/10.1016/j.carbpol.2025.124371
citation_public_url	https://hdl.handle.net/11094/102845

Chain flexibility and branching effects on arabinogalactan conformation in solution

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