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008 141222t2014 my a f m 000 0 eng d
020 _aTHE0004489(Local)
039 9 _a201905170846
_brohana
_c201712061026
_dhuda
_y201412221711
_zfawwaz
040 _aUMP
090 _aTP248.27.P55 M34 2014 r Bc.
100 0 _aSiti Mahira Ahmad
245 1 0 _aExtraction of kappa carrageenan from local edible seaweed /
_cSiti Mahira Ahmad
260 _aKuantan, Pahang :
_bUMP,
_c2014
300 _axiv, 62 p. :
_bill. ;
_c30 cm. +
_e1 CD-ROM
500 _aFaculty of Chemical & Natural Resources Engineering
502 _aProject paper (Bachelor of Chemical Engineering (Biotechnology)) -- Universiti Malaysia Pahang - 2014
504 _aBibliography : p. 61
520 3 _aKappa carrageenan is a polysaccharides which can be extracted from red seaweed such as Eucheuma cottoni species. This study report the extraction of kappa carrageenan from local edible seaweed. The effect of various concentrations of extracting solvent (KOH), time and temperatures on kappa carrageenan properties was studied. The KOH solutions ( concentrations 0.03,0.05, 0.1M) were used as extracting solvent. Extraction process was carried out in oil bath with a constant ratio of seaweed weight to solvent volume ( 1:20 g/ml) at temperatures (80, 90, 100 ℃) for 1,2,3, and 4 hours. During extraction process the samples were stirred using magnetic bar and hot plate stirrer for 10 minutes for every half an hour. Then for the isolation process, the potassium chloride (2% w/v) was used to make the kappa carrageenan become precipitated. The precipitated carrageenan were left to dried at room temperature and were kept in desiccators until further analysis. Higher KOH concentration lead lower sulphate content and higher gel strength of extracted carrageenan. In terms of yield the 0.05M KOH, sample C2 (0.05M, 80℃ , 3h) showed the highest yield, while to get highest gel strength the best parameter is L3 ( 0.1M,100℃, 4h)
650 0 _aPlant biotechnology
856 4 0 _uhttp://ecollib.ump.edu.my/18438/
_zAccess in library only
999 _aVIRTUA40
_c5813
_d5819
999 _aVTLSSORT0080*0200*0400*0900*1000*2450*2600*3000*5000*5020*5040*5200*6500*8560*9992