Physical, structural, mechanical and thermal characterization of bacterial cellulose by G. hansenii NCIM 2529.
The present study aims to investigate the physico mechanical, structural and thermal properties of the bacterial cellulose (BC) produced under shaking condition. Formation of characteristic cellulose sphere has been characterized by light and scanning electron microscopy. The purity of bacterial cellulose was confirmed by thin layer chromatography of hydrolyzed product and elemental analysis by Energy Dispersive Spectroscopy and Fourier transform infrared spectroscopy. High crystallinity bacterial cellulose (81%) composed by high Iα confirmed by X-ray diffraction and solid state C13 nuclear magnetic resonance spectroscopy. The Z-average particle size was 1.44 μm with high porosity of 181.81%. The water holding and absorption capacity was determined. Tensile strength reveals a Young's modulus of 15.71 ± 0.15 MPa and tensile strength of up to 14.94 MPa. The thermal behavior evaluated by thermogravimetry and differential scanning calorimetry shows the thermal stability of bacterial cellulose. The results demonstrated unique characteristics of bacterial cellulose produced at shaking condition.
School of Life Sciences, North Maharashtra University, P.O. Box 80, Jalgaon 425001, MS, India.
Bhavna V
BV
Mohite
School of Life Sciences, North Maharashtra University, P.O. Box 80, Jalgaon 425001, MS, India. Electronic address: satish.patil7@gmail.com.
Satish V
SV
Patil
D002152:Calorimetry, Differential Scanning; D002482:Cellulose / Q000737:chemistry* / Q000302:isolation & purification / Q000648:ultrastructure; D041821:Gluconacetobacter / Q000737:chemistry* / Q000254:growth & development; D008855:Microscopy, Electron, Scanning; D016062:Porosity; D017550:Spectroscopy, Fourier Transform Infrared; D013718:Tensile Strength; D013818:Thermogravimetry; D014867:Water / Q000737:chemistry; D014961:X-Ray Diffraction
D014867:Water; D002482:Cellulose
Agitation; Biopolymer; DSC; Thermogravimetric; Water holding capacity