Volume 46, Issue 3 e16394
ORIGINAL ARTICLE

Laccase-induced wheat bran arabinoxylan hydrogels from different wheat cultivars: Structural, physicochemical, and rheological characteristics

Kexin Han

Kexin Han

State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin, China

Contribution: Data curation, Formal analysis, Methodology, Validation, Writing - review & editing

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Jianbiao Gao

Jianbiao Gao

State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin, China

Contribution: Writing - review & editing

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Wei Wei

Wei Wei

State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin, China

Contribution: Writing - review & editing

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Qiaomei Zhu

Corresponding Author

Qiaomei Zhu

State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin, China

Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University (BTBU), Beijing, China

Correspondence

Qiaomei Zhu and Min Zhang, State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, No 29, 13 Street, Tianjin Economic-Technological Development Area, Tianjin 300457, China.

Emails: [email protected] (Q. M. Z.) and [email protected] (M. Z.)

Contribution: Conceptualization, Formal analysis, ​Investigation, Methodology, Resources, Supervision, Validation, Writing - review & editing

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Viktor Fersht

Viktor Fersht

Center for Applied Medicine and Food Safety “Biomed”, Lomonosov Moscow State University, Moscow, Russia

Contribution: Writing - review & editing

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Min Zhang

Corresponding Author

Min Zhang

State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin, China

China-Russia Agricultural Processing Joint Laboratory, Tianjin Agricultural University, Tianjin, China

Correspondence

Qiaomei Zhu and Min Zhang, State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, No 29, 13 Street, Tianjin Economic-Technological Development Area, Tianjin 300457, China.

Emails: [email protected] (Q. M. Z.) and [email protected] (M. Z.)

Contribution: Conceptualization, Supervision, Validation, Writing - review & editing

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First published: 09 January 2022
Citations: 11

Abstract

The impact of three arabinoxylan (AX) cultivars (262, 44, 229) on the physicochemical, rheological, and microstructural characteristics of AX hydrogels was explored. The gelation of AX262 was faster and the viscoelastic modulus was higher. During the gelation process, the consumption of ferulic acids was 96%, 87%, and 69% for AX262, AX44, and AX229, respectively, indicating a higher oxidative cross-linking degree of AX262. The decline of adsorption intensity for AX262 hydrogel at 1,644 and 3,423 cm−1 was more pronounced, which might be related to a denser gel network as a result of higher oxidation degree of FA. Meanwhile, AX262 hydrogel was more capable of binding water molecules and exhibited better thermal stability. The difference in the gelation properties of varied AX cultivars lied in the molecular structure. AX262 had a higher ferulic acid content (0.23 μg/mg) and larger molecular weight with 1.17 × 106 Da, contributing to an enhanced oxidative cross-linking capacity.

Novelty impact statement

Wheat bran arabinoxylans extracted from strong gluten wheat cultivars with higher contents of FA were suitable to fabricate hydrogel system, due to their better oxidative cross-linking capacity. The prepared AX hydrogel had uniform honeycomb structure with enhanced thermal stability and mechanical properties, which could be potentially used as delivery system for bioactive compounds.

CONFLICT OF INTEREST

The authors have declared no conflicts of interest for this article.

DATA AVAILABILITY STATEMENT

The data used to support the findings of this study are available from the corresponding author upon request.

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