Preparation and Characterization of Double-Layered Microcapsules Containing Nano-SiO2

The double-layered microencapsulation technology has been used in many fields. In this study, the double-layered microencapsulated anthocyanin of Passiflora edulis shells (APESs) was prepared via complex coacervation using gelatin and gum Arabic as the first wall materials (single-layered microcapsu...

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Main Authors: Xue Sun, Jingcheng Su, Rui Zhang, Fangyu Fan
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:International Journal of Polymer Science
Online Access:http://dx.doi.org/10.1155/2021/6675278
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author Xue Sun
Jingcheng Su
Rui Zhang
Fangyu Fan
author_facet Xue Sun
Jingcheng Su
Rui Zhang
Fangyu Fan
author_sort Xue Sun
collection DOAJ
description The double-layered microencapsulation technology has been used in many fields. In this study, the double-layered microencapsulated anthocyanin of Passiflora edulis shells (APESs) was prepared via complex coacervation using gelatin and gum Arabic as the first wall materials (single-layered microcapsules (SMs)) and using gum Arabic containing nano-SiO2 as the second wall material (double-layered microcapsules (DMs)/nano-SiO2) to enhance the stability of the core material. Properties of microcapsules were analyzed on the basis of EE, morphology, scanning electron microscopy (SEM), droplet size, moisture content, and differential scanning calorimetry (DSC). The results showed that the EE values of SMs, DMs, and DMs/nano-SiO2 were 96.12%, 97.24%, and 97.85%, respectively. DMs/nano-SiO2 had the lowest moisture content (2.17%). The average droplet size of DMs/nano-SiO2 (34.93 μm) was higher than those of SMs and DMs. DSC indicated that the melting temperature of DMs/nano-SiO2 was 73.61°C and 45.33°C higher than those of SMs and DMs, respectively. SEM demonstrated that DMs/nano-SiO2 had the smoothest surface compared with the other two kinds of microcapsules. The storage stability of APESs and their microcapsules indicated that the stability of the microcapsules was improved by adding DMs/nano-SiO2 into the wall material of microcapsules. These results indicated double-layered microcapsules containing silica nanoparticles contribute to the stability of the core material.
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spelling doaj-art-2f564765fb71436ebce9c882f0de64582025-02-03T01:20:32ZengWileyInternational Journal of Polymer Science1687-94221687-94302021-01-01202110.1155/2021/66752786675278Preparation and Characterization of Double-Layered Microcapsules Containing Nano-SiO2Xue Sun0Jingcheng Su1Rui Zhang2Fangyu Fan3Key Laboratory for Forest Resources Conservation and Utilisation in the Southwest Mountains of China, Ministry of Education, and College of Life Sciences, Southwest Forestry University, Kunming, Yunnan 650224, ChinaKey Laboratory for Forest Resources Conservation and Utilisation in the Southwest Mountains of China, Ministry of Education, and College of Life Sciences, Southwest Forestry University, Kunming, Yunnan 650224, ChinaKey Laboratory for Forest Resources Conservation and Utilisation in the Southwest Mountains of China, Ministry of Education, and College of Life Sciences, Southwest Forestry University, Kunming, Yunnan 650224, ChinaKey Laboratory for Forest Resources Conservation and Utilisation in the Southwest Mountains of China, Ministry of Education, and College of Life Sciences, Southwest Forestry University, Kunming, Yunnan 650224, ChinaThe double-layered microencapsulation technology has been used in many fields. In this study, the double-layered microencapsulated anthocyanin of Passiflora edulis shells (APESs) was prepared via complex coacervation using gelatin and gum Arabic as the first wall materials (single-layered microcapsules (SMs)) and using gum Arabic containing nano-SiO2 as the second wall material (double-layered microcapsules (DMs)/nano-SiO2) to enhance the stability of the core material. Properties of microcapsules were analyzed on the basis of EE, morphology, scanning electron microscopy (SEM), droplet size, moisture content, and differential scanning calorimetry (DSC). The results showed that the EE values of SMs, DMs, and DMs/nano-SiO2 were 96.12%, 97.24%, and 97.85%, respectively. DMs/nano-SiO2 had the lowest moisture content (2.17%). The average droplet size of DMs/nano-SiO2 (34.93 μm) was higher than those of SMs and DMs. DSC indicated that the melting temperature of DMs/nano-SiO2 was 73.61°C and 45.33°C higher than those of SMs and DMs, respectively. SEM demonstrated that DMs/nano-SiO2 had the smoothest surface compared with the other two kinds of microcapsules. The storage stability of APESs and their microcapsules indicated that the stability of the microcapsules was improved by adding DMs/nano-SiO2 into the wall material of microcapsules. These results indicated double-layered microcapsules containing silica nanoparticles contribute to the stability of the core material.http://dx.doi.org/10.1155/2021/6675278
spellingShingle Xue Sun
Jingcheng Su
Rui Zhang
Fangyu Fan
Preparation and Characterization of Double-Layered Microcapsules Containing Nano-SiO2
International Journal of Polymer Science
title Preparation and Characterization of Double-Layered Microcapsules Containing Nano-SiO2
title_full Preparation and Characterization of Double-Layered Microcapsules Containing Nano-SiO2
title_fullStr Preparation and Characterization of Double-Layered Microcapsules Containing Nano-SiO2
title_full_unstemmed Preparation and Characterization of Double-Layered Microcapsules Containing Nano-SiO2
title_short Preparation and Characterization of Double-Layered Microcapsules Containing Nano-SiO2
title_sort preparation and characterization of double layered microcapsules containing nano sio2
url http://dx.doi.org/10.1155/2021/6675278
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