000 02965ntm a2200373 i 4500
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005 20251117113356.0
008 180119s2017 my a f am 000 0 eng d
020 _aTHE0001040(Local)
039 9 _a201905171304
_bnazirah
_c201802201210
_dsaini
_y201801191059
_zsaini
040 _aUMP
_beng
_cUMP
_erda
090 _aFKKSA .U46 2017 r Bc.
100 0 _aUmmi Najihah Md Hashim,
_eauthor.
245 1 0 _aExtraction of bioactive compounds (mangiferin) from mahkota dewa fruits using subcritical water extraction process /
_cUmmi Najihah Md Hashim
264 1 _aKuantan, Pahang :
_bUMP,
_c2017
264 4 _c© 2017
300 _axiii, 38 pages :
_billustrations (some color) ;
_c30 cm. +
_e1 CD-ROM
336 _atext
_2rdacontent
336 _atext
_2rdacontent
337 _aunmediated
_2rdamedia
337 _acomputer
_2rdamedia
338 _avolume
_2rdacarrier
338 _acomputer dics
_2rdacarrier
347 _atext file
_bPDF
_2rda
500 _aFaculty of Chemical & Natural Resources Engineering
502 _aProject Paper (Bachelor of Chemical Engineering) -- Universiti Malaysia Pahang – 2017
504 _aIncludes bibliographical references
520 3 _aMahkota Dewa or scientifically known as Phaleria Macrocarpa is a popular herbal plant in Indonesia and Malaysia. The bioactive ingredient in this plant process antihistamine, antioxidant, anti-cancer compound. In this work, experimental studies were performed using subcritical water extraction process to extract the bioactive compound namely mangiferin from Mahkota Dewa fruits. The effect of process parameters which are solid to solvent ratios (30, 40, 50, 60, and 70 g/L), temperature (50, 75, 100, 125, 150 °C) and extraction time (3, 4, 5, 6, 7 h) on the extraction yields were investigated. The extraction yields were analysed and characterised using high performance liquid chromatography (HPLC) and 1,1-Diphenyl-2-picryl hydrazyl (DPPH) assay method, respectively. The highest mangiferin yield is 3.2027w/w % were obtained at 60 g/L of solid to solvent ratio, 100 °C of extraction temperature and 5 h of extraction time. The highest of antioxidant activity is 86.5377 % were obtained at 60 g/L of solid to solvent ratio, 125 °C of extraction temperature, 5 h of extraction time. Antioxidant is defined as a substance which significantly delays or inhibits oxidant process. The high value of antioxidant was obtained from the highest value of DPPH since the remaining DPPH in sample acts free radicals were increased in reactivity of unpaired electron and allowed the development of tissues damage in living organisms.
610 2 0 _aFaculty of Chemical & Natural Resources Engineering
_xDissertations
650 0 _aUniversities and Colleges
_xDissertations
650 0 _aTheses
999 _aVIRTUA40
_c7610
_d7616
999 _aVTLSSORT0080*0200*0400*0900*1000*2450*2640*2641*3000*3360*3361*3370*3371*3380*3381*3470*5000*5020*5040*5200*6100*6500*6501*9992