Durian chips drying using combined microwave techniques with step-down microwave power input

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Author list: Nathakaranakule A., Paengkanya S., Soponronnarit S.

Publisher: Elsevier

Publication year: 2019

Journal: Materials Science and Engineering: C (0928-4931)

Volume number: 116

Start page: 105

End page: 117

Number of pages: 13

ISSN: 0928-4931

eISSN: 1873-0191

URL: https://www2.scopus.com/inward/record.uri?eid=2-s2.0-85066793336&doi=10.1016%2fj.msec.2019.109829&partnerID=40&md5=c11276b19a91a8045758838075c23018

Languages: English-Great Britain (EN-GB)

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Abstract

The novel biodegradable films of chloroacetated natural rubber/polyvinyl alcohol (CNR/PVA) (55/45 wt%) non-woven nanofiber films encapsulated with kaolin and starch (2.5 and 5 wt%) were produced successfully by green electrospinning technique. The effect of fillers with different content on the physical, chemical, mechanical, biocompatibility and biodegradation properties of CNR/PVA nanofiber films were investigated. The higher crystallinity obtained in CNR/PVA encapsulate with 2.5 wt% kaolin and nanofibers were formed with the maximum diameter distribution and mean value of 40–160 nm and 94.15 ± 54.19 nm respectively. DSC and DMA revealed the kaolin can improve the interfacial adhesion between CNR and PVA and contribute to enhancing the chemical interactions. The mechanical properties improved upon encapsulation of starch and kaolin and more favourable nanofibers with smaller diameter obtained using kaolin rather than starch. The cytotoxicity results revealed the viability of the prepared nanofiber films with human dermal fibroblast cell. Furthermore, the incorporation of starch and kaolin accelerated the degradation rate and the highest enzymatic degradation obtained with 2.5 wt% of starch. The prepared nanofiber films have the potential to be applied for the skin tissue engineering scaffold applications. © 2019 Elsevier B.V.

Keywords

cytotoxicity, Kaolin, Modified natural rubber, Starch, tissue engineering