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005 20251114204515.0
008 120305t2010 my a f m 000 0 eng d
020 _aTHE0004938(Local)
039 9 _a201905131530
_bSHAHRILJ
_c201203051641
_dFida
_y201203051641
_zFida
040 _aUMP
090 _aTP1180.B55 A35 2010 rs Bc.
100 0 _aNur ‘Adilah Ismail
245 1 0 _aCharacterization and antimicrobial analysis of chitosan composite biodegradable films with addition of ginger essential oil /
_cNur ‘Adilah Ismail
260 _aKuantan, Pahang :
_bUMP,
_c2010
300 _axiv, 86 p. :
_bill. ;
_c30 cm. +
_e1 CD-ROM
502 _aProject paper (Bachelor of Chemical Engineering (Biotechnology)) -- Universiti Malaysia Pahang - 2010
504 _aBibliography : p. 78-82
520 3 _aInnovative techniques of preserving food safety and structural integrity as well as complete biodegradability must be adopted. This research involves the development process in making the antimicrobial biodegradable film in order to restrain and inhibit the growth of spoilage and pathogenic bacteria that are contaminating food. The main objective of this research is to formulate the best film for food packaging, which has high thermal, antimicrobial and mechanical properties. The films were prepared by casting method. Chitosan were dissolved in 1% v/v acetic acid and yam starch by heat gelatinized, then PEG and ginger essential oil was added to the mix solution. After that, six analyses were tests for those films. The antimicrobial activity was determined by liquid culture test and agar plate test. The results showed that Sample C has highly antimicrobial properties in order to inhibit more Bacillus subtilis and Escherichia coli in liquid culture medium and has greatest clear zone on agar plate. The films morphology structure was observed using scanning electron microscopy (SEM). The results revealed that Sample C more smooth surface and compact structure. Chemical composition of the films was investigated using fourier transform infrared spectroscopy (FTIR) and revealed that starch, chitosan, essential oil and additives presence in the films. The thermal stability characterization using thermal gravimetric analysis (TGA) and differential scanning calorimetric (DSC) showed that Sample C has higher melting point and high heat resistance. In conclusion, Sample C is the best among three samples, prove that the addition of antimicrobial agent such as essential oil will give a better performance in film making.
650 0 _aBiodegradable plastics
650 0 _aBiodegradation
650 0 _aPolymeric composites
999 _aVIRTUA40
_c3225
_d3231
999 _aVTLSSORT0080*0200*0400*0900*1000*2450*2600*3000*5020*5040*5200*6500*6501*6502*9992