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008			260810t20252025my a|||fr|||| 000 0 eng d
020			_aTHE0010931 (Local) _qHardback
040			_aUMPSA _beng _cUMPSA _erda
090			_aFTKKP .N53 2025 r Bc.
100	0		_aNidaulhasanah Binti Tajuddin Nirwan, _eauthor.
245	1	0	_aPhysicochemical properties of ph-responsive films incorporating bacterial cellulose, chitosan and natural colourants / _b _cNidaulhasanah Binti Tajuddin Nirwan
264		1	_aKuantan, Pahang : _bUMPSA, _c2025
264		4	_c© 2025
300			_ax, 44 pages : _billustrations ;
336			_2rdacontent _atext
337			_2rdamedia _aunmediated
338			_2rdacarrier _avolume
347			_2rda _atext file _bPDF
500			_aFaculty of Chemical and Process Engineering Technology
502			_aFinal Year Report (Bachelor of Chemical Engineering Technology (Hons) ) -- Universiti Malaysia Pahang Al-Sultan Abdullah - 2025
504			_aInclude bibliographical reference
520	3		_aThis study developed smart colorimetric films by incorporating natural pH indicators, anthocyanin (ACN) from red cabbage and curcumin (CC), into bacterial cellulose (BC) films at varying ratios (ACN, CC, ACN25:CC75, ACN50:CC50, and ACN75:CC25). The addition of these indicators influenced the films’ physical and mechanical properties, with thickness ranging from 0.06 mm to 0.23 mm, moisture content between 8.62% and 47.43%, and water solubility reaching 43.25% in ACN-based films, indicating improved degradability. FTIR analysis confirmed successful integration, with characteristic functional groups of anthocyanins and curcumin present. Mechanical testing revealed that while the control film had the highest tensile strength (34.25 MPa), ACN75:CC25 exhibited the highest flexibility with 17.44% elongation at break, making it a promising candidate for flexible packaging applications. Color stability analysis showed that ACN-rich films maintained their purple hue, while CC-based films remained yellow, with blended formulations displaying gradual color transitions. These films exhibited excellent pH responsiveness, proving their potential as smart indicators for food packaging. Future studies are recommended to explore a wider range of ACN:CC ratios to further refine film properties for specific applications. Therefore, this study aims to investigate the effects of incorporating anthocyanin from red cabbage and curcumin at different ratios into the bacterial cellulose/chitosan matrix on its physicochemical properties.
610	2	0	_aFaculty of Chemical and Process Engineering Technology _xDissertations
650		0	_aUniversities and colleges _xDissertations
650		0	_aTheses _xDissertations
856			_uhttps://umpir.ump.edu.my/id/eprint/47750
942			_2lcc _cPSM
999			_c105428 _d105434