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008 131029t2013 my da f abm 000 0 eng d
020 _aTHE0002228(Local)
039 9 _a201905241042
_bshamsul
_y201310290925
_znabilah
040 _aUMP
090 _aQK898.A55 G94 2013 rs Bc.
100 1 _aGwee, Xian Fu
245 1 0 _aUltrasonic extraction of anthocyanins from Clitoria Ternatea flowers using response surface methodology /
_cGwee Xian Fu
260 _aKuantan, Pahang :
_bUMP,
_c2013
300 _axvi, 113 p. :
_bill. ;
_c30 cm. +
_e1 CD-ROM
502 _aProject paper (Bachelor of Chemical Engineering (Biotechnology)) -- Universiti Malaysia Pahang – 2013
504 _aBibliography : p. 85-91
520 3 _aThis thesis deals with the anthocyanins extraction from Clitoria ternatea flowers using ultrasonic extraction with response surface methodology (RSM). The objective of this thesis were to investigate a simple, sequential and standardized method to obtain a high yield of anthocyanins from Clitoria ternatea flowers by ultrasonic extraction compared to conventional solvent extraction, evaluate the effect of extraction factors which were extraction temperature (30-50 °C), extraction time (30-150 min), ratio of liquor to solid (2-15 ml/g) and sonication power (96-240 W) on the extraction efficiency by performing first level optimization in two-level factorial design with Design Expert 7 software and measure the antioxidant activity (AA) using radical scavenging activity (RSA) method of 2,2-diphenyl-2-picrylhydrazyl (DPPH) assay. This study will benefit consumers and food industry where healthier alternatives could be introduced in their diet and into the production of food. Ultrasonic extraction using water solvent was used to extract the anthocyanins where its screening test experimental variables were optimized via Design Expert 7 software using RSM. Ultrasonic extraction showed a 246.4789 % better efficiency than conventional solvent extraction. The anthocyanins extracts exhibited a DPPH activity of 68.48 % at the optimized experimental variables. In conclusion, ultrasonic extraction is a viable extraction method for extracting anthocyanins with high antioxidant activity from Clitoria ternatea flowers. It is recommended to further optimize the screening test results in a two-level factorial design.
650 0 _aAnthocyanins
650 0 _aAngiosperms
650 0 _aSonochemistry
650 0 _aResponse surfaces (Statistics)
999 _aVIRTUA40
_c3897
_d3903
999 _aVTLSSORT0080*0200*0400*0900*1000*2450*2600*3000*5020*5040*5200*6500*6501*6502*6503*9992