00000ctm a22000003a 4500 UP-99796217609926649 Buklod 20110712094620.0 t r |||| u| ta 110712s xx d r |||| u| (iLib)UPD-00177202850 DCHE eng LG 993.5 2011 F66 P67 Potante, Jennifer P. Galactomannan from flame tree (Delonix regia) seeds extraction, characterization and interaction with k-carrageenan Jennifer P. Potante ; Rowena Grace O. Rumbaoa, adviser. c2011. x, 81 leaves. Thesis(BSFT)--University of the Philippines Diliman ABSTRACT A potential galactomannan was obtained from Delonix regia seeds using hot water extraction and alcohol precipitation. This method is simple, easy to perform and allowed in the food industry. The optimum extraction time at 80°C was determined to be 1 hour with a yield of 4.72 ± 0.65% and a viscosity of 57.33 ± 1.90 cps for a 1% solution. The extraction process was standardized using viscosity as parameter. The extracted galactomannan was characterized to have an average yield of 8.61% and viscosity of 44.67 ± 0.33 cps using the standardized extraction procedure. The chemical structure of the galactomannan was elucidated using Fourier Transform Infrared Spectroscopy (FTIR). Possible synergism of D. regia gum with κ-carrageenan was determined by mixing different ratios of κ-carrageenan and the extracted gum. It was found that synergism between the two hydrocolloids occur at a κ-carrageenana/galactomannan ratio of 3:1 with a total polymer concentration of 1.5%. Galactomannan. Rumbaoa, Rowena Grace O. FI Monograph UPD DCHE LG 993.5 2011 F66 P67 Thesis