emulsificação

8/19/2019 emulsificação

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Sumário

1. INTRODUÇÃO...............................................................................................4

2. ORIGEM DO ESTUDO E DEFINIÇÃO..........................................................5

3. CARACTERÍSTICAS DOS ALIMENTOS.......................................................6

3.1 CLASSIFICAÇÃO....................................................................................6

3.2 ESTABILIZAÇÃO DE EMULSÕES.............................................................7

3.2.1 Caa!a !" S#"$% " & '"%()a* +"#a....................................................,

3.2 AÇÃO DOS EMULSIFICANTES...........................................................11

4. -RE-ARO DE EMULSÕES.........................................................................13

4.1 EMULSÃO LEO/0GUA...........................................................................14

5. -REISÃO DO TI-O DE EMULSÃO..........................................................16

5.1 EFEITO DA TEM-ERATURA....................................................................17

CONCLUSÃO.....................................................................................................1,

REFERNCIAS BIBLIOGR0FICAS...................................................................2

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1. INTRODUÇÃO

E*& )#"a 8"#"$&9:%"& ;" (&%)#" " *);)!&

))(1 )($a. A ?&$a& !" a "*&> '&$#a%#&> $";"$ "%"$9)a

'a$a a%#"$ a 9 #a* '$&("&

&#$a "#a)*)!a!" ;" '&!" "$ a"%#a!a '"*a a!)& !" a9"%#"

#"%&a#)=& !" '"$?

*"()#)%a> '$" a "*& !& #)'& 9a

" *"& HA/O> " "J"'*& a a%#")9a. U #"$(")$& (&'&%"%#" &

(&)%a& !" !)="$& (&'&%"%#" $";"$)!& 'a$a (&%?"$)$ "#a)*)!a!" a

"*&. S& & a9"%#" a#)=& !" '"$? $a+& '"*a ;a* & "*)?)(a%#"

a&$=)!& %a )%#"$?a(" "%#$" *"& " a 9a> $"!+)%!& a #"%& '"$?)()a* " a

"%"$9)a %"("$)a ?&$a& !a "*&. I#& " !"=" &$)"%#a& !a

&*(*a ;" '&" '$&'$)"!a!" 8)!$&?


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2. ORIGEM DO ESTUDO E DEFINIÇÃO

O "#!& &$" "*" $9) !"=)!& a& ?a#& !" "$ )#"a

(&"%#" "%(&%#$a!& %& !)aa!)a $"a* !& %!&> a) (&& &#$a

)#$a. E*a &(&$$" " #&!& & *9a$" !a =)!a !)$)a " '&$ )& &

)%="#)9a!&$" " =)$a %a &$)9a& !" *)!a$ (& "" #)'& !" )#"a.

Tabela 1. -& %& "%#a%#&> & !&) *


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a ?a" )%#"$%a %& a 9a> "%!& "#a a ?a" (&%# a ="$!a!" ;" (a!a a !a ?a" (&#a (&%#"$

=$)& P(&'&%"%#"Q.

EJ"'*& !" a*)"%#& '$&("a!&> ;" & "*"> & ($"" !"

*")#"> a%#")9a> a$9a$)%a> a)&%""> &*8& 'a$a a*a!a> a*)(8a> *)%9)a>

&$="#"> &*&> (8&(&*a#"> $"(8")& " '$&!#& )%#a%#@%"&. O *")#" " a 9"a

!" &=& & (&%)!"$a!& "*" %a#$a). O#$a a'*)(a" 'a$a &

"*)?)(a%#" & !"($)#a> "%#$" "*a "*8&$a$ a #"J#$a " =)!a !" '$a#"*")$a

!" '$&!#& (&%#"%!& a)!&> '"*a ?&$a& !" (&'*"J& (& &

(&'&%"%#" !"#" &!)?)(a$ a '$&'$)"!a!" $"&*9)(a !a ?a$)%8a !" #$)9&>

'"*a )%#"$a& (& & 9*K#"% "*8&$a$ a (&%)#:%()a " #"J#$a !" '$&!#&

a" !" 9&$!$a> '"*& (&%#$&*" !" '&*)&$?)& " !a "#$#$a ($)#a*)%a !a

9&$!$a> a* !" '$&&="$ a &*)*)+a& !" a$&a.

0. 'R'TERSTI'S DOS IMENTOS

3.1 CLASSIFICAÇÃO

O "*)?)(a%#" & (*a)?)(a!& !" a(&$!& (& a !)#$))& !"

a ?a". A F)9. 1> !"&%#$a 9$a?)(a"%#" a ?a" !a "*&.

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F)9$a 1 Fa" !a "*&.

O "*)?)(a%#" '&" 9$'& #"$)%a* '&*a$ ;" a9"

#a"%#" (& a &*(*a !" 9a " 9$'& 8)!$&?)(& ;" )%#"$a9"

(& a ?a" *)')!)(a. A '&$& 8)!$&?)(a !a &*(*a 9"$a*"%#" a (a!")a

a*;)*a *&%9a> "%;a%#& a 8)!$&? $"*#a%!& " &!)?)(a" !a

'$&'$)"!a!" ?


6/18

))( a#$a= !a a9)#a& " ?&$a&

!" )("*a.

F)9$a 2 E#a'a !a "#a)*)+a& !" a "*& a*)"%# " a

(&%("%#$a& ;" !"($"(" (& a !)#a%()a.

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0.2.1 'ama&a &e Ster" e o pote")ial 6eta

A 'a$# '&$#a%#& a !)?"$"%a !" '"%()a*

!"($"("%#" "%#$" a '"$? "%#$" a 'a$#


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a S"'a$a& !a ?a" '&$ "!)"%#a&. A 9a !)'"$a #:

!"%)!a!" !)?"$"%#" !a ?a" !)'"$a%#"> "> '&$ )&> '&!" 8a="$ "!)"%#a&

" "'a$a& !a ?a" !"=)!& ?&$a !a 9$a=)!a!". A ="*&()!a!" (& ;" "

'$&!+ !)$"#a"%#" '$&'&$()&%a* a& #aa%8& !a 9a !a ?a" !)'"$a "

)%="$a"%#" '$&'&$()&%a* =)(&)!a!" !a ?a" (&%# (& a

(&%";"%#" )%))& !a $"'*" "*"#$&##)(a. A 9a " %" a a

&#$a> ?)(a%!& "'a$a!a '&$ a (aa!a ?)% '&$#a%#&>

a ="*&()!a!" !" "!)"%#a&. O 9**& &="" (&& (&%%#&> "

="+ !" )%!)=)!a*"%#". A ?*&(*a& %& )'*)(a %a $'#$a !a '"* '&$#a%#&> a $'#$a !a '"*


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-a$a "=)#a$ a !""#a)*)+a& $')!a !a "*"> (& a

#)*)+a& !" a9"%#" "*)?)(a%#" ;" '"$)#" a'*)a$ !" ?&$a

)9%)?)(a#)=a a =)!a K#)* !a "*". E%#$" "*" =a*" "%()&%a$

a E*"#$*)#& )%"$a)> ;" '$&'&$()&%a (a$9a "*"#$&##)(a 9a

!)'"$a 'a$a a"%#a$ a $"'*&.

M&*(*a #"%&a#)=a> (&& '$" ;" " &$)"%#a !" #a* ?&$a

;" " "J#$"& 8)!$?&& " 8)!$?)*& " (&*&(a %a '"$? $"'"(#)=a"%#". O a(K*& !"a &*(*a %a )%#"$?a(" !))%)

a #"%& '"$?)()a*.

( Ma($&&*(*a !)&*=)!a %a ?a" (&%# a"%#a%!& a

=)(&)!a!" !"a ?a" H'&*)a(a$

3.2 AÇÃO DOS EMULSIFICANTES

O a*)"%#& H)%!#$)a*)+a!& & %& %"(")#a !" "*)?)(a%#">

=)#& ;"> a* !a 9a> (&%#: #$: &#$& (&'&%"%#" '$)%()'a) '$"

(a$&)!$a#& " 9&$!$a. T&!& & &$9a%)& =)=& '&" " '$'$)&

)#"a "*)?)(a%#". A*9% & "J#$a (&&

9*)("$&*> '$&')*"%& 9*)(&*> &$)#&*> a(a$&" "#(. -&!" "$ a!)()&%a*"%#"

"#"$)?)(a!& (& ()!& &$9@%)(&> (&& a()!& *#)(&> #a$#$)(&> ((

( '&$#a%#&> ;" "*a " )#$"> ?&$a%!& a

"*&.

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S& !)?"$"%()a!& #a '"*a (a$9a. S"%!& & "*)?)(a%#" )%)(&>

$"'&%=") '&$ "#a)*)+a$" "*" !& #)'& *"&/9a. Na )%#"$?a("> &

9$'& a*;)*a )%#"$a9" (& a 9 "%;a%#& & 9$'& ?)%a)

(a$$"9a!& " '$&"#a 'a$a a ?a" a;&a. O "%=&*=)"%#& !"


11/18

!a "*&> & ;" ?")#& ;a%!& " ;"$ !"#$ (&%%#a"%#" (& a

a9)#a&. Ua &#$a ?&$a !" !))%)$ a "#a)*)!a!" !a "*& "$)a

a!)()&%a$*8" '&) "#" *8" '$&=&(a & (&*a'& !a (aa!a "*"#$&##)(a

!'*a> & a 8)!$*)"> 'a$a !"#$)$ & "*)?)(a%#".

A )%!K#$)a !" a*)"%#& (&%)!"$a!a a a)&$ (&%)!&$a !"

"*)?)(a%#"> " a 'a%)?)(a& $"'$""%#a "" "9"%#& )%!#$)a* (&

a)&$ (&%&. O "?")#& '&)#)=& !& "*)?)(a%#" "# $"*a()&%a!& (& &

a"%#& !a a!"$:%()a !& a)!& '$"


12/18

4.1 EMULSÃO LEO/0GUA

a%!& "#" #)'& !" "*& !""a!&> !"="" &'#a$ '&$

"*)?)(a%#" a) &*K="* %a ?a" a;&a. S" "*)?)(a%#" a%)%)(& &

(a#)%)(& & a!&> a '&$& *)'&? '&) "J)#" *)9a" 8)!$&9:%)& "%#$"

& !&) a9"%#" "*)?)(a%#" a%!& & %&)%)(& & a!&> a

"#a)*)+a& !"=)!& a 8)!$a#a& " *)9a" 8)!$&9:%)& !a '&$&

8)!$&?

" =&*#a !a 9a !" *"&> "*" %& '&!" "$ )#& &*K="* " 9a> " %& "*"

)9$a '$"?"$"%()a*"%#" 'a$a 9a " ?&$a a %&=a )("*a. S" )&

a(&%#"("> a 9a !" *"& " (a$9a '$"#&$a (&a*"(" " a "*&

;"$a. D" ?&$a ;"> & "*8&$" a9"%#" "*)?)(a%#" '&" ";)* '&$#a%#& #)*)+a$

;a%#)!a!" !" $?a(#a%#" ?)()"%#" 'a$a "%=&*="$ (a!a 9a !" *"&. S" a

(&%("%#$a& ?&$ )#& "*"=a!a %& "%#a%#&> (&& ()#a!& a%#"$)&$"%#"> )&

)%?*)$ %"9a#)=a"%#" %a "#a)*)!a!" !& )#"a.

U "*)?)(a%#" ;" )9a*"%#" &*K="* " *"& " " 9a #a

'$&!+ "*" )%#=") "!)!a ;" a )("*a #"%!" a "$" ?&$a!a

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" aa a ?a" " & $?a(#a%#" ?&$%"(" '&(a '$"& 'a$a a 9a

!)'"$a.

-a$a ?&$a$ "" #)'& !" "*& & "*)?)(a%#" '$"()a a'$""%#a$ a

"9)%#" '$&'$)"!a!"

1 "$ '$"?"$"%()a*"%#" &*K="* %a ?a" &*"&a

2 D"=" $"!+)$ a #"%& )%#"$?a()a* "%#$" a !a ?a"

3 -$"()a ?&$a$ ?)*" )%#"$?a()a* $ '&#*a$a ;" " "*" a/& ?&$a!a (&

("&> )#& > ;" a'$""%#a $a+&="* "#a)*)!a!"> a*9 #)'& !" )%#"$a&

)%#"$?a()a* !"=" "J)#)$> ;"$ "a "*"#$&##)(a> ;"$ "a a#$a= !" '&%#" !"

8)!$&9:%)&.

A*9% "#!)&& a%#: ;" "*" a/& & "#a)*)+a!a '&$

?)*" %"#$& &%&&*"(*a$" !" "*)?)(a%#"> "%;a%#& &#$& a($"!)#a

;" & ?)*" &%&&*"(*a$" & 9$a!a*"%#" #)#

"(@%)(a !& ?)*" )%#"$?a()a* ?&$a!&.

A ;a%#)!a!" !" 9a ;" '&!" "$ !)'"$a #a "# a&()a!a

?&$a !"" ?)*". a%#& a) $ "*" 9a/*"&

P"#=")Q & !)? a ?a()*)!a!" (& ;" ""#)'& !" "*& )$ " ?&$a$ " a $"'"(#)=a "#a)*)!a!" !"'"%!"$

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&=)a"%#" !a %a#$"+a !a ?a" &*"&a " !& "*8&$ )#"a !" "*)?)(a%#"

"*"()&%a!& )#a ="+" '"*& #&!& !a #"%#a#)=a " "$$&.

:. 8RE3ISÃO DO TI8O DE EMUSÃO

A'"a$ !" "*" "$" '"%a!a (&& "#a)*)+a!a '"*a ?&$a&

!" (a$9a "*#$)(a & (aa!a !" &*=a#a& " =&*#a !a 'a$# &#$&

?a#&$" (&& "*a#)()!a!" '"$?)()a* " $)9)!"+ !a '"$?

'"$a%!& a '$"=)" !a #"&$)a a) a!a 'a$a )%#"$'$"#a$ a "#a)*)!a!"

(&*&)!a*> a #"&$)a DLO. E#a 9$a%!" "#a)*)!a!" a#$)

reológicas> )#& > =)(&)!a!" " "*a#)()!a!" !& ?)*" '"$?)()a*. A

=)(&"*a#)()!a!" !" ;a*;"$ *)!& & * " (&& "

a "#a)*)!a!". E "*" &/a> "*)?)(a%#" a!&$=" " '&(&

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)*)"9%!& a & 8)!$&?)(& )9$a 'a$a a )%#"$?a(" =a9a$&a"%#" " a

?&$a& !" "*" a/& '&!" *"=a$ a*9% )%#&.

a%!& *"&> 9a " a9"%#" "*)?)(a%#" & )#$a!&>

)%)()a*"%#" #&!& & #)'& !" "*& '&!" ?&$a$" )*#a%"a"%#". O

#)'& !" "*& ;" a& ?)%a* " ?&$a$ !"'"%!"$ !a #aJa !" (&a*"(:%()a

$"*a#)=a !& )#"a. S" a 9a !" *"& (&a*"(" a) =a9a$&a"%#">

a "*& *"&/9a "$ ?&$a!a " =)("="$a. S" a #aJa !"

(&a*"(:%()a & ))*a$"> a ?a" ;" "# '$""%#" " "J("& )$ #&$%a$"

a ?a" (&%#


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"(a%)& !" &*)*)+a&. D" ?a#&> a "*& '&!" P)%="$#"$Q 'a$a

'$&!+)$ a "*& &'&#a (&& $"*#a!& !" !a%a !" #"'"$a#$a.

E" '$&("& & !"%&)%a!& P)%="$& !" ?a"Q " a #"'"$a#$a %a ;a*

"*" &(&$$" (8aa!a #"'"$a#$a !" )%="$& !" ?a" H-IT.

D"!" ;" & "?")#& !a #"'"$a#$a &$" a &*)*)!a!" !" $?a(#a%#"

%& )%)(& $a+&a="*"%#" " "%#"%!)!&> & '$)%(


17/18

'ON'USÃO

A ?&$a& !" a "*&> $";"$ "%"$9)a 'a$a a%#"$ a 9 #a* '$&("& &#$a

"#a)*)!a!" ;" '&!" "$ a"%#a!a '"*a a!)& !" a9"%#"

#"%&a#)=& !" '"$? '"*a ?&$a& !" (&'*"J& (& &

(&'&%"%#" !"#" &!)?)(a$ a '$&'$)"!a!" $"&*9)(a !a ?a$)%8a !" #$)9&>

'"*a )%#"$a& (& & 9*K#"% "*8&$a$ a (&%)#:%()a " #"J#$a !" '$&!#&

a" !" 9&$!$a> '"*& (&%#$&*" !" '&*)&$?)& " !a "#$#$a ($)#a*)%a !a

9&$!$a> a* !" '$&&="$ a &*)*)+a& !" a$&a.

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REFER;N'IS

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