00000ctm a22000003a 4500 UP-99796217611352635 Buklod 20140731152546.0 a r |||| u| ta 140731s2014 xx d r |||| u| (iLib)UPD-00227804867 DCHE rda eng LG 993.5 2014 F66 B45 Beloro, Lorenzo O. author Chemical composition of dried pulp of Arabica, Robusta and Liberica coffee varieties Lorenzo O. Beloro ; Djanna F. Cornago, adviser. Quezon City College of Home Economics, University of the Philippines Diliman 2014. x, 86 leaves illustrations (some color) 1 CD-ROM (4 3/4 in.). text rdacontent. unmediated rdamedia. volume rdacarrier. Thesis (B.S. Food Technology)--University of the Philippines Diliman. In this study, proximate composition (including moisture, crude fat, crude protein, crude fiber, ash, and total available carbohydrate contents) and caffeine content of dried coffee pulp samples from three locally grown coffee varieties (Arabica, Robusta and Liberica) were investigated. Nitrogen-free extract was determined as percent difference based on the results of proximate analysis. UV/vis spectrophotometry method was used for caffeine determination with dichloromethane as extracting solvent. Proximate composition was observed to be significantly different (p<0.05) among dried coffee pulp samples, except for moisture and crude fiber contents. Moreover, the present study revealed that caffeine content of Arabica and Liberica were not significantly different (p>0.05) from each other; however, both values were significantly different (p<0.05) to that of Robusta. Robusta sample had the highest level of moisture, crude fat and crude fiber. Crude protein and ash were observed to be highest in Arabica sample while highest levels of TAC and NFE were observed in Liberica. Differences in chemical composition across varieties may be attributed to variation in genetic make-up and environmental conditions during cultivation. Coffee Philippines Varieties. Coffee pulp Composition. Cornago,Djanna F. adviser. Also available in UP Diliman Digital Archives https://digitalarchives.upd.edu.ph/item/19391/971/QX6s8FLWxx8APJlwAKxOu8wi FI UP UPD DCHE LG 993.5 2014 F66 B45 Thesis