02729nam a2200265 a 4500001001400000003000700014005001700021008004100038020002200079039006400101040000800165090002900173100001800202245011500220260003400335300005700369502010600426504002800532520151800560650002702078952012302105952013302228999002502361999007702386vtls000066816KUKTEM20251114204530.0121122t2012    my a   f m    000 0 eng d  aTHE0003960(Local) 9a201905141454bfauzic201211221546dFiday201211221545zFida  aUMP  aTP156.E8 A36 2012 rs Bc.0 aNur Ain Sukri10aEffect of different types of solvent on extraction of phenolic compounds from cosmos caudatus /cNur Ain Sukri  aKuantan, Pahang :bUMP,c2012  axii, 52 p. :bill. (some col.) ;c30 cm. +e1 CD-ROM  aProject paper (Bachelor of Chemical Engineering (Biotechnology)) -- Universiti Malaysia Pahang - 2012  aBibliography : p. 45-483 aThe preliminary screening indicated that Cosmos caudatus had extremely high antioxidant capacity. The antioxidant activity of most of the plant produced is mainly due to the presence of phenolic compounds. Among the phytochemicals, phenolic compounds are the main contributor of antioxidant activity in plant extracts due to their higher value in total phenolic content. The purpose of this study is to investigate the effect of different types of solvent with 50%, 70% and 100% concentration of each solvent on extraction of phenolic compounds from Cosmos caudatus. The soxhlet extractor was used in this study. Total phenols in the extract was determine using Folin-Ciocalteu (FC) assay. From the results, 100% ethanolic extract showed the highest of total phenolic content with 15.61 mgGAE/g. However the antioxidant activity was only 14.15%. Meanwhile, 70% acetone extract exhibited the highest inhibition of DPPH. The value obtained was 7.77 mgAAE/g with the antioxidant activity of 84.78%. The polarity of the solvent affects the efficiency of the extraction, total phenolic content and antioxidant activity of the obtained extracts. Total phenolic content is not the only contributor to its antioxidant activity. The existence of other components in fresh extract such as enzymes and vitamin may directly react with free radicals in addition to polyphenolic compound. Further research is warranted to explore the individual or major polyphenolic groups and other bioactive compounds in the Cosmos caudatus. 0aExtraction (Chemistry)  00104071a10000b10000d2019-09-04l0oTP156.E8 A36 2012 rs Bc.p0000068079r2019-09-04 00:00:00t1w2019-09-04yPSM  00104071a10000b10000d2019-09-04l0oCD 6378 | TP156.E8 A36 2012 rs Bc.p0000068080r2019-09-04 00:00:00t1w2019-09-04yPSM  aVIRTUA40c3664d3670  aVTLSSORT0080*0200*0400*0900*1000*2450*2600*3000*5020*5040*5200*6500*9992