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008 070222t2006 my f m 000 0 eng d
020 _aTHE0004754(Local)
039 9 _a201905141148
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040 _aUMP
090 _aTP372.55.M35 W66 2006 rs Thesis
100 3 _aWong, Yih Tin
245 1 0 _aStudy of acrylamide formation in coffee during roasting/
_cWong Yih Tin
260 _aKuantan, Pahang :
_bKUKTEM ,
_c2006
300 _axiii, 59 p. :
_bill. ;
_c30 cm. +
_e1 computer disc
502 _aProject paper (Bachelor of Chemical Engineering) -- Kolej Universiti Kejuruteraan dan Teknologi Malaysia - 2006
504 _aBibliography: p. 48-50
520 _aCoffee is a popular beverage in society. Acrylamide is an undesirable substance that will metabolically activated to carcinogens.Acrylamide formation is found to occur during the browning process, which is called Maillard reaction. This is the reaction between sugars and asparagines at temperature above 120°C. The roasting temperature of coffee is at least 200°C, meaning that coffee surely contain acrylamide but the level of formation is different for different roasting conditions. In this research, study of the quantity acrylamide upon the local coffee powder, commercial coffee powder and different roasting parameters coffee have been done. The highest concentration of acrylamide is in coffee which was roasted at 220°C for 5 min. Besides that, the relationship between the carbohydrates and acrylamide also have been done but no simple linear regression relationship was found.
650 0 _aMaillard reaction
650 0 _aCoffee
999 _aVIRTUA40
_c519
_d525
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