Physicochemical, mechanical, barrier and antibacterial properties of starch nanocomposites crosslinked with pre-oxidised sucrose

Описание

Тип публикации: статья из журнала

Год издания: 2019

Идентификатор DOI: 10.1016/j.indcrop.2019.01.007

Ключевые слова: Biopolymers, Crosslinking, Models, Packaging, Starch, Sugar (sucrose), Water vapor, Antibacterial properties, Bionanocomposite films, Cellulose nanofibres, Cross-linking density, Morphological structures, Oxygen permeability, Reinforcement filler, Water vapor transmission rate, Cellulose films, Bacteria (microorganisms), Biopolymer, Modelling

Аннотация: Bionanocomposite films were fabricated using starch as a matrix, pre-oxidised sucrose as a crosslinker and cellulose nanofibres as reinforcement filler. The spectroscopic (FTIR) and microscopic (SEM) techniques were used to identify the chemical changes associated with the crosslinking, and to characterize the morphological structuПоказать полностьюre of the films. The crosslinking density evaluated by Flory-Rehnar equation. There is a decrease in diffusivity, permittivity and swelling properties of the films after crosslinking. Reduction of water vapour (from 0.074 to 0.038 g min−1 m-2) and oxygen (from 29.44 to 10.27 cm3 m-2 d−1) transmission rates for film prepared with 3 wt.% of OS and 5 wt.% of CNFs was observed. The water transport through the films was found to follow Fickian behaviour. The anti bacterial properties of films against four different food pathogens were evaluated. Films represent high potential alternative to existing ones. © 2019 Bionanocomposite films were fabricated using starch as a matrix, pre-oxidised sucrose as a crosslinker and cellulose nanofibres as reinforcement filler. The spectroscopic (FTIR) and microscopic (SEM) techniques were used to identify the chemical changes a

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Издание

Журнал: Industrial Crops and Products

Выпуск журнала: Vol. 130

Номера страниц: 398-408

ISSN журнала: 09266690

Издатель: Elsevier B.V.

Авторы

  • Balakrishnan Preetha (Mahatma Gandhi Univ, Int & Inter Univ Ctr Nanosci & Nanotechnol, PD Hills PO, Kottayam 686560, Kerala, India)
  • Sreekala M.S. (Sree Sankara Coll Kalady, Dept Chem, Ernakulum 683574, Kerala, India)
  • Geethamma V.G. (Mahatma Gandhi Univ, Int & Inter Univ Ctr Nanosci & Nanotechnol, PD Hills PO, Kottayam 686560, Kerala, India)
  • Kalarikkal Nandakumar (Mahatma Gandhi Univ, Int & Inter Univ Ctr Nanosci & Nanotechnol, PD Hills PO, Kottayam 686560, Kerala, India)
  • Kokol Vanja (Univ Maribor, Inst Engn Mat & Design, Smetanova Ul 17, SLO-2000 Maribor, Slovenia)
  • Volova Tatiana (Siberian Fed Univ, 79 Svobodnyi Av, Krasnoyarsk 660041, Russia)
  • Thomas Sabu (Mahatma Gandhi Univ, Int & Inter Univ Ctr Nanosci & Nanotechnol, PD Hills PO, Kottayam 686560, Kerala, India; Siberian Fed Univ, 79 Svobodnyi Av, Krasnoyarsk 660041, Russia; Mahatma Gandhi Univ, Sch Chem Sci, PD Hills PO, Kottayam 686560, Kerala, IndiaArticle)

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