Mechanical and antibacterial properties of the chitosan coated cellulose paper for packaging applications: Effects of molecular weight types and concentrations of chitosan

บทความในวารสาร


ผู้เขียน/บรรณาธิการ


กลุ่มสาขาการวิจัยเชิงกลยุทธ์


รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่งTanpichai S., Witayakran S., Wootthikanokkhan J., Srimarut Y., Woraprayote W., Malila Y.

ผู้เผยแพร่Elsevier

ปีที่เผยแพร่ (ค.ศ.)2020

วารสารInternational Journal of Biological Macromolecules (0141-8130)

Volume number155

หน้าแรก1510

หน้าสุดท้าย1519

จำนวนหน้า10

นอก0141-8130

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85075821449&doi=10.1016%2fj.ijbiomac.2019.11.128&partnerID=40&md5=58185c817eeced3b8e1c523dc5955a28

ภาษาEnglish-Great Britain (EN-GB)


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บทคัดย่อ

Chitosan with low (25 kDa) and high molecular weight (2100 kDa) were used to enhance performances of paper made from steam-exploded bamboo fibers and nanofibrillated cellulose. Chitosan solutions with concentrations of 0–1.0 wt% were manually applied on paper surface using a facile coating approach with a wire bar. Effects of chitosan coatings on morphology, thermal stability, wettability, mechanical performances and antibacterial properties of the paper were investigated. The larger improvement in the mechanical properties and wettability of the chitosan coated paper was observed with increasing concentrations of chitosan due to the disappearance of empty pores between fibers within a cellulose network by the formed chitosan matrix. These improvements were significantly higher when high molecular weight chitosan was applied. Yet, the addition of chitosan slightly decreased the thermal stability of the coated paper, and the chitosan coating did not improve the antimicrobial properties of the paper. The antimicrobial activity of chitosan against Gram-positive (Staphylococcus aureus) and Gram-negative bacteria (Escherichia coli) was found to be diminished when a chitosan solution was entrapped within paper. Together with the overall migration of the paper in food simulants, the results suggested that the chitosan coated paper could be applied for non-food-direct-contact packaging materials. © 2019 Elsevier B.V.


คำสำคัญ

Overall migration


อัพเดทล่าสุด 2023-03-10 ถึง 07:36