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Design of an optical sensor for ethylene based on nanofiber bacterial cellulose film and its application for determination of banana storage time
Author(s) -
Pirsa Sajad,
Chavoshizadeh Sona
Publication year - 2018
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.4250
Subject(s) - ethylene , materials science , absorbance , ethylene glycol , fourier transform infrared spectroscopy , bacterial cellulose , cellulose , analytical chemistry (journal) , nanofiber , nylon 6 , chemical engineering , nanotechnology , composite material , chromatography , polymer , organic chemistry , chemistry , engineering , catalysis
In this work, new ethylene gas sensor was developed on the basis of portable bacterial cellulose (BC) nanofiber film doped with KMnO 4 (K‐BC). The relationship between the concentration of KMnO 4 (8 × 10 −3 , 8 × 10 −4 , and 8 × 10 −5 mol L −1 ) and the optical and morphological properties of ethylene sensor was investigated. The Fourier‐transform infrared results showed that some new interactions have occurred between BC membrane and KMnO 4 . The significant reduction in the relative intensity of the characteristic X‐ray diffraction peak of BC in the doped films clearly indicates that the crystalline fraction decreases as a result of KMnO 4 addition. The fabricated K‐BC was used for determination of ethylene concentration. The color, clarity, and absorbance of film at different concentrations of ethylene (10‐2000 μg mL −1 ) were determined by spectrophotometer. Moisture absorption and water vapor permeability of BC were increased by the addition of KMnO 4 . Finally, the ethylene optical sensor was used for detection and determination of ethylene concentration in the bunch banana packages.