000			02627nam a22002897a 4500
003			OSt
005			20241105143225.0
008			241105b |||||||| |||| 00| 0 eng d
040			_aTUPM _bEnglish _cTUPM _dTUPM _erda
050			_aBTH RB 37 _bR69 2024
100			_aRoxas, Josa Adora V. _eauthor
245			_aCharacterization of bio-wax extract from taro leaves (Colocasia esculenta (L.) Schott) for corrugated cardboard coating applications/ _cJosa Adora V. Roxas, Claire C. Santelices, and Angeline Gale L. Soriano .--
260			_aManila: _bTechnological University of the Philippines, _c2024.
300			_a109pages: _c29cm.
336			_2rdacontent
337			_2rdamedia
338			_2rdacarrier
500			_aThesis (undergraduate)
502			_aCollege of Science.-- _bBachelor of Applied Science in Laboratory Technology: _cTechnological University of the Philippines, _d2024.
504			_aIncludes bibliography:
520			_aThis study characterized the bio-wax extract obtained from Taro leaves (Colocasia esculenta (L.) Schott) using the Solvent Extraction method, yielding an average of 0.2427 grams of wax per gram of fresh leaves. The Fourier-Transform Infrared Spectroscopy (FT- IR) revealed the presence of long aliphatic chains, esters, or fatty acids. The Differential Scanning Calorimeter (DSC) results showed two distinct melting events at 75.80°C and 79.24°C, indicating the presence of multiple components in the bio-wax. The solubility tests revealed that the bio-wax exhibited solubility in non-polar solvents while it remained insoluble in polar solvents. Heat sensitivity tests demonstrated that the bio-wax is thermally stable up to 60°C, with degradation starting at 90°C and complete melting at 120°C. The coated cardboard was found to be hydrophobic according to the measured contact angle of droplets of distilled water on its surfaces above 90°. Chemical resistance revealed that the coated cardboard resisted penetration by 0.1 N hydrochloric acid and 4% sodium hydroxide but was penetrable by ethanol and n-hexane. Water absorption tests demonstrated that the coated cardboard absorbed significantly less water compared to uncoated cardboard. Further research is recommended to explore the potential of bio-wax as a sustainable and renewable hydrophobic material for various applications. Keyword: Colocasia esculenta (L.) Schott, Bio-wax, Hydrophobic, and Contact Angle
650			_aTaro leaves
650			_aBio-wax
700			_aSantelices, Claire C. _eauthor
700			_aSoriano, Angeline Gale L. _eauthor
942			_2lcc _cBTH COS _n0
999			_c29020 _d29020