Study on the Mechanism of Procyanidins Adsorption onto Chitosan Microflower

Siyu JIAO; Dingyu XU; Xianchao YAO; Xin LIU; Chunyan LIN; Lixin HE; Rihui LIN

doi:10.13386/j.issn1002-0306.2022100097

Shipin gongye ke-ji (Sep 2023)

Study on the Mechanism of Procyanidins Adsorption onto Chitosan Microflower

Siyu JIAO,
Dingyu XU,
Xianchao YAO,
Xin LIU,
Chunyan LIN,
Lixin HE,
Rihui LIN

Affiliations

Siyu JIAO: Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory for Polysaccharide Materials and Modification, School of Chemistry and Chemical Engineering, Guangxi Minzu University, Nanning 530006, China
Dingyu XU: Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory for Polysaccharide Materials and Modification, School of Chemistry and Chemical Engineering, Guangxi Minzu University, Nanning 530006, China
Xianchao YAO: Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory for Polysaccharide Materials and Modification, School of Chemistry and Chemical Engineering, Guangxi Minzu University, Nanning 530006, China
Xin LIU: Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory for Polysaccharide Materials and Modification, School of Chemistry and Chemical Engineering, Guangxi Minzu University, Nanning 530006, China
Chunyan LIN: Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory for Polysaccharide Materials and Modification, School of Chemistry and Chemical Engineering, Guangxi Minzu University, Nanning 530006, China
Lixin HE: Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory for Polysaccharide Materials and Modification, School of Chemistry and Chemical Engineering, Guangxi Minzu University, Nanning 530006, China
Rihui LIN: Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory for Polysaccharide Materials and Modification, School of Chemistry and Chemical Engineering, Guangxi Minzu University, Nanning 530006, China

DOI: https://doi.org/10.13386/j.issn1002-0306.2022100097
Journal volume & issue: Vol. 44, no. 18
pp. 43 – 49

Abstract

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In order to understand the adsorption mechanism of chitosan microflower (CSMF) on procyanidins (PC), CSMF was used as an adsorbent to adsorb PC solutions under different adsorption conditions. The drug-loaded particles were characterized by scanning electron microscopy (SEM), Fourier infrared (FTIR), X-ray diffraction (XRD), etc. Through adsorption kinetics, adsorption isotherm, and adsorption thermodynamics, the mechanism of CSMF adsorption PC was systematically studied. The results showed that the FTIR pattern of the drug-loaded particles produced a new characteristic peak at 1456 cm−1, indicating that the PC was successfully loaded onto the CSMF. The results of SEM and XRD analysis showed that the morphology and crystallinity of CSMF did not change after loading. The adsorption kinetics showed that the adsorption of PC by CSMF conformed to the pseudo-second-order kinetic model, and the adsorption rate was affected by the interaction between particle diffusion and boundary layer diffusion. The adsorption isotherm showed that the Freundlich adsorption isotherm model could more accurately reflect the entire adsorption process, indicating that the adsorption process of CSMF to PC was multilayer adsorption with surface energy inhomogeneity. Finally, adsorption thermodynamics showed that the adsorption of PC by CSMF was a spontaneous physical adsorption process with reduced entropy.

Published in Shipin gongye ke-ji

ISSN: 1002-0306 (Print)
Publisher: The editorial department of Science and Technology of Food Industry
Country of publisher: China
LCC subjects: Technology: Chemical technology: Food processing and manufacture
Website: http://www.spgykj.com/indexen.htm

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