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Highly Stable Pickering Emulsions with Xylan Hydrate Nanocrystals

Xylan is a highly abundant plant-based biopolymer. Original xylans in plants are in an amorphous state, but deacetylated and low-branched xylan can form a crystalline structure with water molecules. The utilizations of xylan have been limited to bulk applications either with inconsistency and uncert...

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Autores principales: Wang, Shanyong, Xiang, Zhouyang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8537821/
https://www.ncbi.nlm.nih.gov/pubmed/34684997
http://dx.doi.org/10.3390/nano11102558
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author Wang, Shanyong
Xiang, Zhouyang
author_facet Wang, Shanyong
Xiang, Zhouyang
author_sort Wang, Shanyong
collection PubMed
description Xylan is a highly abundant plant-based biopolymer. Original xylans in plants are in an amorphous state, but deacetylated and low-branched xylan can form a crystalline structure with water molecules. The utilizations of xylan have been limited to bulk applications either with inconsistency and uncertainty or with extensive chemical derivatization due to the insufficient studies on its crystallization. The applications of xylan could be greatly broadened in advanced green materials if xylan crystals are effectively utilized. In this paper, we show a completely green production of nano-sized xylan crystals and propose their application in forming Pickering emulsions. The branches of xylan were regulated during the separation step to controllably induce the formation of xylan hydrate crystals. Xylan hydrate nanocrystals (XNCs) with a uniform size were successfully produced solely by a mild ultrasonic treatment. XNCs can be adsorbed onto oil–water interfaces at a high density to form highly stable Pickering emulsions. The emulsifying properties of XNCs were comparable to some synthetic emulsifiers and better than some other common biopolymer nanocrystals, demonstrating that XNCs have great potential in industrial emulsification.
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spelling pubmed-85378212021-10-24 Highly Stable Pickering Emulsions with Xylan Hydrate Nanocrystals Wang, Shanyong Xiang, Zhouyang Nanomaterials (Basel) Article Xylan is a highly abundant plant-based biopolymer. Original xylans in plants are in an amorphous state, but deacetylated and low-branched xylan can form a crystalline structure with water molecules. The utilizations of xylan have been limited to bulk applications either with inconsistency and uncertainty or with extensive chemical derivatization due to the insufficient studies on its crystallization. The applications of xylan could be greatly broadened in advanced green materials if xylan crystals are effectively utilized. In this paper, we show a completely green production of nano-sized xylan crystals and propose their application in forming Pickering emulsions. The branches of xylan were regulated during the separation step to controllably induce the formation of xylan hydrate crystals. Xylan hydrate nanocrystals (XNCs) with a uniform size were successfully produced solely by a mild ultrasonic treatment. XNCs can be adsorbed onto oil–water interfaces at a high density to form highly stable Pickering emulsions. The emulsifying properties of XNCs were comparable to some synthetic emulsifiers and better than some other common biopolymer nanocrystals, demonstrating that XNCs have great potential in industrial emulsification. MDPI 2021-09-29 /pmc/articles/PMC8537821/ /pubmed/34684997 http://dx.doi.org/10.3390/nano11102558 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Wang, Shanyong
Xiang, Zhouyang
Highly Stable Pickering Emulsions with Xylan Hydrate Nanocrystals
title Highly Stable Pickering Emulsions with Xylan Hydrate Nanocrystals
title_full Highly Stable Pickering Emulsions with Xylan Hydrate Nanocrystals
title_fullStr Highly Stable Pickering Emulsions with Xylan Hydrate Nanocrystals
title_full_unstemmed Highly Stable Pickering Emulsions with Xylan Hydrate Nanocrystals
title_short Highly Stable Pickering Emulsions with Xylan Hydrate Nanocrystals
title_sort highly stable pickering emulsions with xylan hydrate nanocrystals
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8537821/
https://www.ncbi.nlm.nih.gov/pubmed/34684997
http://dx.doi.org/10.3390/nano11102558
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