000 026300000a22004690004500
911 _aXL1990004304
901 _aQ04
903 _aE
903 _aV
904 _aBCO
905 _aC
906 _a19900101
908 _aJ
909 _aAS
912 _aEn
912 _aEn
914 _aCACAO
914 _aEXTRA
914 _aBCO1
082 0 4 _a633.7469
_bD582
100 1 _962714
_aDimick, P.S.
100 1 _990012
_aManning, D.M
260 _cDic 1987
041 0 _aEn
500 _a++ 4 tab. 16 ref. Sum. (En)
520 _aStudies were conducted using differential scanning calorimetry (DSC) and high performance liquid chromatography (HPLC) to determine the thermal properties and glyceride composition of cocoa butter crystals formed under static conditions. In additon to these studies, visual characterization of the crystallites was obtained with polarized light microscopy (PLM). Crystals were formed under controlled static or motionless conditions at formation temperatures of 26.0, 28.0, 30.0, 32.0 and 33.0 grade centigrade. Preparatory techniques were developed using laminated polyethylene with plastic hoops in order to grow the crystals for isolation and visual identification by PLM prior to DSC assay. Cocoa butter was also crystallized from liquid oil directly in the DSC pans prior to thermal assay. At each crystal formation temperature (26-33 grade centigrade), various crystallite types grew, each with varying triglyceride composition (PLiP, POO, PLiS, POP, SOO, SLiS, POS, SOS, SOA). As an example, the "feather" and "individual" crystals formed at 26.0 grade centigrade exhibited significant increases in SOS and significant decreases in POP compared to the original butter. It was determined that the original amount of SOS significantly increased in the cocoa butter crystallite as the incubation temperature increased from 26-32 grade centigrade.
650 1 4 _9153864
_aMANTECA DE CACAO
650 1 4 _9141440
_aCOMPOSICION QUIMICA
650 1 4 _9142749
_aCROMATOGRAFIA LIQUIDA ALTA PRESION
650 1 4 _9135831
_aANALISIS QUIMICO
691 _9311335
_aCOCOA BUTTER
691 _9310534
_aCHEMICAL COMPOSITION
691 _9321983
_aHIGH PRESSURE LIQUID CHROMATOGRAPHY
692 _aBEURRE DE CACAO
692 _aCOMPOSITION CHIMIQUE
692 _aCHROMATOGRAPHIE LIQUIDE HAUTE PRESS
773 0 _tJournal of the American Oil Chemists' Society (EUA)
_dDic 1987
_gv. 64(12) p. 1663-1669
040 _aCR-TuBCO
_cCR-TuBCO
_bEs
245 1 0 _aThermal and compositional properties of cocoa butter during static crystallization
942 _cANA
003 CR-TuBCO
999 _c70726
_d70726