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Article

Agrocybe cylindracea Dietary Fiber Modification: Sodium Hydroxide Treatment Outperforms High-Temperature, Cellulase, and Lactobacillus Fermentation

1
The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Provincial Engineering Research Center of Ecological Food Innovation, School of Public Health, Guizhou Medical University, Guian New Area, Guiyang 561113, China
2
Collaborative Innovation Center for Prevention and Control of Endemic and Ethnic Regional Diseases Co-Constructed by the Province and Ministry, Guizhou Medical University, Guiyang 561113, China
*
Authors to whom correspondence should be addressed.
Molecules 2024, 29(15), 3519; https://doi.org/10.3390/molecules29153519
Submission received: 7 May 2024 / Revised: 30 June 2024 / Accepted: 18 July 2024 / Published: 26 July 2024
(This article belongs to the Section Applied Chemistry)

Abstract

Agrocybe cylindracea dietary fiber (ADF) contains 95% water-insoluble dietary fiber, resulting in poor application performance. To address this issue, ADF was modified by four methods (cellulase, sodium hydroxide, high-temperature, and Lactobacillus fermentation) in this paper. By comparing the physicochemical properties, microstructures, monosaccharide compositions, and functional characteristics (antioxidant and α-glucosidase inhibitory activities in vitro) of all modified ADF samples, the optimal modification method was selected. Results showed that sodium hydroxide treatment was deemed the most effective modification method for ADF, as alkali-treated ADF (ADF-A) revealed a higher oil-holding capacity (2.02 g/g), swelling capacity (8.38 mL/g), cholesterol adsorption (6.79 mg/g), and α-glucosidase inhibitory activity (more than 70% at 0.4–0.6 mg/mL) than the other modified samples. The looser microstructure in ADF-A might be attributed to molecular rearrangement and spatial structure disruption, which resulted in smaller molecular sizes and decreased viscosity, hence improving ADF’s physicochemical and functional qualities. All these findings indicate the greater application potential of modified ADF products in food and weight-loss industries, providing a comprehensive reference for the industrial application of ADF.
Keywords: Agrocybe cylindracea; dietary fiber modification; comparison of modification methods; hydrophilic performance; antioxidant activity; α-glucosidase inhibitory activity Agrocybe cylindracea; dietary fiber modification; comparison of modification methods; hydrophilic performance; antioxidant activity; α-glucosidase inhibitory activity

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MDPI and ACS Style

Kang, J.; Wang, L.; Dong, L.; Yin, M.; Wei, S.; Luo, P. Agrocybe cylindracea Dietary Fiber Modification: Sodium Hydroxide Treatment Outperforms High-Temperature, Cellulase, and Lactobacillus Fermentation. Molecules 2024, 29, 3519. https://doi.org/10.3390/molecules29153519

AMA Style

Kang J, Wang L, Dong L, Yin M, Wei S, Luo P. Agrocybe cylindracea Dietary Fiber Modification: Sodium Hydroxide Treatment Outperforms High-Temperature, Cellulase, and Lactobacillus Fermentation. Molecules. 2024; 29(15):3519. https://doi.org/10.3390/molecules29153519

Chicago/Turabian Style

Kang, Jingjing, Li Wang, Ling Dong, Mingyue Yin, Shaofeng Wei, and Peng Luo. 2024. "Agrocybe cylindracea Dietary Fiber Modification: Sodium Hydroxide Treatment Outperforms High-Temperature, Cellulase, and Lactobacillus Fermentation" Molecules 29, no. 15: 3519. https://doi.org/10.3390/molecules29153519

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