02166ntm a2200265 a 4500 vtls000084874 KUKTEM 20251117113230.0 150115t2014 my a f m 000 0 eng d THE0002229(Local) 201905241043 shamsul 201712041212 huda 201501150941 fawwaz UMP QK898.A55 N33 2014 r Bc. Nadhila Anatie Abdul Rahim Mixtures of hibiscus sabdariffa stems and roots for anthocyanin synthesis / Nadhila Anatie Abdul Rahim Kuantan, Pahang : UMP, 2014 xv, 30 p. : ill. ; 30 cm. + 1 CD-ROM Faculty of Chemical & Natural Resources Engineering Project paper (Bachelor of Chemical Engineering) -- Universiti Malaysia Pahang – 2014 Bibliography : p. 25-27 The mixture of H.sabdariffa stems and roots were extracted to get anthocyanin. H.Sabdariffa plant grows seriously in a warm countries including Malaysia. This plant is usually grown for its calyces and flowers which are mainly used for anthocyanin synthesis. Anthocyanin can also be synthesized from other parts of H.Sabdariffa like stems and leaves. The stems of anthocyanin were discarded without any value added product. Thus, this work was done to use the stems and roots mixture for anthocyanin. Besides that, the variations of temperature, time and ethanol-water ratio on the anthocyanin yield were investigated. The anthocyanin was extracted from H.Sabdariffa stems and roots waste using ultrasound technique with ethanol-water as solvent. The anthocyanin yield was analysed using High Performance Chromatography (HPLC). The condition where it gave the highest yield of anthocyanin was at contact time of 30 minutes, temperature of 50oC and 70:30 of ethanol water solvent. Extraction of anthocyanin from roselle approved the second order kinetic yielding good R2 values of 0.9882 and k values 0.0306 Anthocyanins http://ecollib.ump.edu.my/18338/ Access in library only 0 0 0 1 10000 10000 2019-09-04 0 QK898.A55 N33 2014 r Bc. 0000091651 2019-09-04 00:00:00 1 2019-09-04 PSM 0 0 0 1 10000 10000 2019-09-04 0 CD 8592 | QK898.A55 N33 2014 r Bc. 0000091652 2019-09-04 00:00:00 1 2019-09-04 PSM VIRTUA40 5114 5120 VTLSSORT0080*0200*0400*0900*1000*2450*2600*3000*5000*5020*5040*5200*6500*8560*9992