Comparison of physicochemical and rheology properties of Shiitake stipes-derived chitin nanocrystals and nanofibers.

Lentinula edodes

Immune supportGut & microbiome

SpeciesShiitake, Hua Gu

JournalCarbohydrate polymers

Year2020

Key points

Chitin production from fungal sources has gained increased attention in recent years in terms of continuous supply and safety
In this study, we produced chitin from Shiitake stipes through deproteinization, depigmentation, demineralization and removal of glucans, and then prepared chitin nanocrystal (ChNC) and chitin nanofibers (ChNF) by acid hydrolysis or high-pressure homogenizers
Such obtained ChNFs have higher length than the ChNCs with a length of 142.4 ± 40.4 nm, with the similar diameter (9 nm)
In addition, the purity of ChNC and ChNF were over 98 % measured by HPAEC. The zeta potential analysis showed that ChNC is stable in acid form, while ChNF is in the opposite
Finally, we evaluated the rheology properties of samples to find the impact of salt concentrations on nanoparticles interactions
Overall, the fungi-derived chitin nanomaterials with diversity of characters exhibit immense potential for applications in nutraceutical and food industry

Metadata-grounded summary

Citation abstract

Chitin production from fungal sources has gained increased attention in recent years in terms of continuous supply and safety. In this study, we produced chitin from Shiitake stipes through deproteinization, depigmentation, demineralization and removal of glucans, and then prepared chitin nanocrystal (ChNC) and chitin nanofibers (ChNF) by acid hydrolysis or high-pressure homogenizers. Such obtained ChNFs have higher length than the ChNCs with a length of 142.4 ± 40.4 nm, with the similar diameter (9 nm). In addition, the purity of ChNC and ChNF were over 98 % measured by HPAEC. The zeta potential analysis showed that ChNC is stable in acid form, while ChNF is in the opposite. Finally, we evaluated the rheology properties of samples to find the impact of salt concentrations on nanoparticles interactions. Overall, the fungi-derived chitin nanomaterials with diversity of characters exhibit immense potential for applications in nutraceutical and food industry.

Citation

Zhang M, Li Y, Wang W, Yang Y, Shi X, Sun M, et al. (2020). Comparison of physicochemical and rheology properties of Shiitake stipes-derived chitin nanocrystals and nanofibers. Carbohydrate polymers https://doi.org/10.1016/j.carbpol.2020.116468 PMID: 32536392

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