Cellulose nanofiber-multilayered fruit peel-mimetic gelatin hydrogel microcapsules for micropackaging of bioactive ingredients. (1st February 2020)

• Record Type: Journal Article
• Authors: Seo, Mintae; Seo, Minjeong; Choi, Song-Ee; Shin, Kyounghee; Lee, Jun Bae; Yang, Dong-Yeon; Kim, Jin Woong
• Is Part Of: Carbohydrate polymers. Volume 229(2020)
• Publication Date: 2020-02-01
• Subjects: FPMCs fruit peel-mimetic microcapsules -- GMPs gelatin hydrogel microparticles -- CNFs cellulose nanofibers -- GAPMs gallic acid-encapsulated polymeric micelles -- C12NEs dodecane nanoemulsions -- LbL layer-by-layer -- TEMPO 22, 6, 6-tetramethylpiperidine-1-oxyl radical -- PDMAC poly(diallyldimethylammonium chloride) -- PSS poly(sodium-4-styrenesulfonate) -- PEO-b-PCL poly(ethylene oxide)-block-poly(ε-caprolactone) -- AFM atomic force microscopy -- TEM transmission electron microscopy -- SEM scanning electron microscopy; Fruit peel-mimetic microcapsules -- Cellulose nanofibers -- Layer-by-layer deposition -- Micropackaging; Polysaccharides -- Periodicals; Polysaccharides -- Periodicals; Polysaccharides -- Périodiques; Electronic journals; 547.78
• DOI: 10.1016/j.carbpol.2019.115559
• Languages: English
• ISSNs: 0144-8617

Abstract

Highlights: A cellulose-multilayered fruit peel-mimetic microcapsule (FPMC) system is proposed as a new micropackaging technology. Fruit peel biomimicry was accomplished by coating the gelatin core flesh with a cellulose-reinforced shell containing an antioxidant and an oil softener. Tailored engineering of the FPMC shell prevented generation of microcracks during drying, thus exhibiting improved antioxidation performance. Abstract: We report a facile but robust approach to fabricate fruit peel-mimetic microcapsules (FPMCs) of which shell was structured by layering cellulose nanofibers (CNFs) with an antioxidant and a waxy compound on monodisperse gelatin microparticles using the layer-by-layer deposition. The thickness and moduli of the shell increased commonly depending on the number of CNF layers, indicating that the incorporation of CNFs made the shell layer rigid. We determined that the coating of the outermost FPMC layer with dodecane nanoemulsions softened the shell surface, thus preventing the generation of microcracks, which is essential for minimizing dehydration in the drying process. Furthermore, we also confirmed that the co-deposition of a phenolic compound, gallic acid, which is encapsulated in the polymeric micelles, with the shell layers allowed the FPMCs to exert antioxidant effects against the influx of oxygen from the atmosphere. These results highlight that our FPMC system could pave the way for the development of a micropackaging technology that enables encapsulation and stabilization of bioactive ingredients.