11-Fats _ Oils-12

a11 b a b c b 0123 4445674

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Unformatted text preview: <) They have different shapes & ways of packing They have different melting points (mp) Type V is the nicest Type VI is the most stable (highest mp) How do you make all the crystals type V? Controlled heating/cooling (Thanks, Hui Ean Teh) A@?@) <<<) A1?1) < B) A>?@) B) @@?C) B <) -".+&'()+/)0123)) #"4+).44)5.+)6%7,+.4,)) =>?@) <<) !"#$"%.+E%") ! !"#$"%&'()*+"$,) Tempering Chocolate @D?@) !&#") FST10 ©GMS/GFR 2012 $%%&'()#*%#+,-$# $%&'()*#'+#,-./# $%&'()'*'+#,-./.01&'# FST10 ©GMS/GFR 2012 "# "# "# !!!# "# !# !"# !"# !!# "# !# !"# "# !" !" !" !"# !" !" !" "# !"# !"# !" !" !" "# !"# !"# "# !!!# "# "# !!# !" !"# "# !" !" !" !" "# !!!# !# !!!# "# !!# !!# "# !"# "# !"# "# !# !"# #$%&'()"&*"+,-." !" !" !" !" "# !"#$%&'($)(*+,-( #$%&'()"&*"+,-." $%%&'()#*%#+,-$# "# "# !"# "# "# "# !" "# !"# !" !" !" !" "# "# !" !" !" !"# !" !" !" "# !"# !" !" !" "# !"# !"# !" #$%&'()"&*"+,-." !" !" !" !" !" !" !" !" !" !" !" !" !" !" !" !" !" !" !" FST10 ©GMS/GFR 2012 !"#$%&'()**+',,-#%%)&$"."/%&01/"23+"*0%"4,( FST10 ©GMS/GFR 2012 ()**+',,%)"%"/5*&5/%)&460%"4,*&4+&$7824"/.7820+)+( ( !" !" !" !" !" !" !" !" !" !" !" !" !" !" !" !" !" !" !" !" !" FST10 ©GMS/GFR 2012 But T Changes during storage: !"#$#%&'()*%##+) ! ,"-'-.")$/0.'&%.)#1)$"#$#%&'() .2/3&$()) ! 4/&1.-'-#1)3/#+)5)'#)'"()+#.') .'&*%()56) ! 7/#+#'(8)*0)3%2$'2&'-#1.)-1) '(+9(/&'2/() ! :&/+%(..)*2')/(;($'(8)*0) $#1.2+(/.) !" !" !" Roles of Fats ! ! ! Energy source Texture Adipose tissue ! ! e.g. Marbling of meat USDA grading is based on fat distribution FST10 ©GMS/GFR 2012 Roles of Fats ! Prime Choice Select Energy source Texture ! Adipose ! ! Standard Utility Essential fatty acids Cutter FST10 ©GMS/GFR 2012 Essential fatty acids ! Are essential to proper metabolism ! Cannot be synthesized by the body ! Essential fatty acids Linoleic ($6) ! ! ! ! (or at least in sufficient amounts) Thought related to the production of these powerful hormones and biochemicals: ! Linolenic ($3) Prostaglandins ! Leucotrienes Thromboxanes ! & maybe arachidonic ($6) acids ! Biochemists are still not certain exactly which ones are essential and how much you...
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