Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
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Transcript of Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
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7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
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TRNG I HC CN THKHOA KHOA HCB MN HA HC
TI LUN VN TT NGHI!
KH"O #$T TH%C TRNG #& '(NGCH)T B"O *U"N ACI' B+N,OIC
TRONG MT # TH%C !H-M . THANH!H CN TH
C$N B H /NG '0N #INH VI1N TH %C HIN
T2#3 NGU45N TH6 'I! CHI HU7NH TH6 TH84 H9NG : ;?;@CN3 NGU45N TH6 THU MAIKTV3 NGU45N TH6 THU !HNG
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Kho st thc trng s dng acid benzoic trong thcphm
SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang i
LI CM No*o
Qu trnh thc hin Lu!n "#n t$t n%hi& '( %i)& + ti,& thu '-.c
nhi/u 0inh n%hi+1u2 3u "4 nh5n% 06 n#n% 37 8ch9 thi,t thc cho c:n%
"ic ;?@ 't '-.c 0,t 1u nh- n%4= h:+ n
H U+ Ain %Bi Di c+ En chFn th4nh ',n c: N%u=Vnh Wi& Chi9
O +:n P< X Rho< Rho< Pc '( t!n tnh h-n% SYn "4 u:nto 'i/u 0in '@ + ho4n th4nh t$t u!n "#n>
H U+ cZn% Ain %Bi Di c+ En ;Fu ;[c ',n
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SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang ii
Kho st thc trng s dng acid benzoic trong thcphm
deNf ?gI PC CN P CjNf Pkl bm PjI CP NfPopqI NpM
RPkp RPkp PC ?Oc !& H So H Pnh &h)c
jMsNPp HHHHHHNPN bv ql ?wNP fIw Cp CwN j PexNf WyN
z> Cn 3O h-n% SYnG h{> Nf|\}N P~ WI] CPI
> ?/ t4iG Rho ;t thc trn% ; Sn%
> {inh "in thc hinG P|NP P~ P\ PNf
H M{{qGz
H L&G C nhFn P< Pc H Rh<
> NOi Sun% nh!n AtG
Nh!n At "/ hnh thTc LqNG
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>> 3> Nh!n At "/ nOi Sun% c< LqNG
?nh %i nOi Sun% thc hin c< '/ t4iG
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Nh5n% "Jn '/ c^n hn ch,G
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>> c> Nh!n At '$i "i tn% ;inh "in th
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SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang ii
Kho st thc trng s dng acid benzoic trong thcphm
%hi r tn%
nOi Sun% ch8nh So ;inh "in n4o chu trch nhi+ thc hin n,u cG
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
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SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang iii
Kho st thc trng s dng acid benzoic trong thcphm
S> R,t u!n9 '/ n%h "4 'i@+G
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
CKn hE9 n%4= thn% n#+
Cn 3O h-n%SYn
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SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang i$
Kho st thc trng s dng acid benzoic trong thcphm
deNf ?gI PC CN P CjNf Pkl bm PjI CP NfPopqI NpM
RPkp RPkp PC ?Oc !& H So H Pnh &h)c
jMsNPkw HHHHHHNPN bv ql ?wNP fIw Cp CwN j ]PN IN
z> Cn 3O chJ+ &hn 3inG>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
> ?/ t4iG Rho ;t thc trn% ; Sn%
> {inh "in thc hinG P|NP P~ P\ PNf
H M{{qGz
H L&G C nhFn P< Pc H Rh< > NOi Sun% nh!n AtG
Nh!n At "/ hnh thTc LqNG
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>> 3> Nh!n At "/ nOi Sun% c< LqNG
?nh %i nOi Sun% thc hin c< '/ t4iG
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Nh5n% "Jn '/ c^n hn ch,G
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>> c> Nh!n At '$i "i tn% ;inh "in th
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SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang $
Kho st thc trng s dng acid benzoic trong thcphm
%hi r tn%
nOi Sun% ch8nh So ;inh "in n4o chu trch nhi+ thc hin n,u cG
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>
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SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang $
Kho st thc trng s dng acid benzoic trong thcphm
S> R,t u!n9 '/ n%h "4 'i@+G
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
CKn hE9 n%4= thn% n#+
Cn 3O &hn3in
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SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang $i
Kho st thc trng s dng acid benzoic trong thcphm
NPNf CP qI
o*o
Nh5n% ch5 "i,t t[t ;
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SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang $ii
Kho st thc trng s dng acid benzoic trong thcphm
MC LC
o*o
r>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>i
NPN bv ql ?wNP fIw Cp CwN j PexNf WyN
>>>>>>>>>>>>>>>>>>>>>>>>>>ii NPN bv ql ?wNP fIw Cp CwN j ]PN
IN>>>>>>>>>>>>>>>>>>>>>>>>>>>> i" NPNf CP qI
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>"i MC LC
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>"ii
WpNP {wCP PNP
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> A WpNP {wCP
Nf>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Ai ]PN
M ?| >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> z
]PN Nf Q|pN>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
CPeNf zG CP k Q|N PC ]PM>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
I> ]h %i< thc &h+99z9z9>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
I>z> ?nhn%h>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
I>> ]hFnoi>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
II> ChJt 3o 1un thc&h+>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
III> nh hnh ; Sn%
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SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang $ii
Kho st thc trng s dng acid benzoic trong thcphm
II>z> 8nh chJt c< "^n% thE+>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
II>> 8nh chJt c< %$c c>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
III> {n AuJt >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
III>z>ron% c:n%n%hi&>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
III>>7n% h.& tron% &h^n% th8n%hi+>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>z
Iq>n% Sn% c< >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> zz
qI>z>ron% ;n AuJt ch, 3i,n thc &h+>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> zz
qI>>ron% = hc>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> z
qI>>ron% c:n%n%hi&>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>z
q> N%hin cTu 'Oc t8nh z9>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> z
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SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang $iii
Kho st thc trng s dng acid benzoic trong thcphm
q>z> N%u= cE hnh th4nh 'Oc chJt %F= un% th- tron% n-c n%t>>>>>>>>>>>>>z
q>> N>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> z
qI>z>> N%u=n t[c>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> z
qI>z>> Cch ti,n h4nh>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> z
qI>z>> i@u th 0,t 1u>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> z
qI>>]h-En% &h& chun 'O>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> z
qI>>z> N%u=n t[c>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> z
qI>>> i,n h4nh th
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> zqI>>> 8nh 0,t 1u
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
qI>>]h-En% ]h& {[c R2 Ln% C>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Iq>>z> N%u=n t[c>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Iq>>> Cch ti,n h4nh>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Iq>>> 8nh ton 0,t1u>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>z
]PN PC NfPIM>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
p> MC I| NfPIN C|>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
> ]PeNf ]Pw] NfPIN
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SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang i%
Kho st thc trng s dng acid benzoic trong thcphm
C|>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
I> ]h-En% &h& chun'O>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
I>z> ]h-En% &h& th>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
I>> N%u=n t[c>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
I>> Wn% c9 h< chJt>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
I>> i,n h4nh th>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
I>> 8nh 0,t 1u>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
II> ]h-En% &h& P]LC Ac 'nh h4+ -.n% >>>>>>>>>>>>>>>>>>>>>>>> II>z> ]h-En% &h& th>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
II>> NOi Sun% &h-En% &h&>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
II>> hi,t 39 Sn% c "4 h< chJt>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
II>> Cch ti,n h4nh>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
II>> 8nh ton 0,t 1u>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
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Kho st thc trng s dng acid benzoic trong thcphm
SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang i%
C> PkgCP ?~NPP NfPIMG >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
W> PC NfPIM>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
I>h+ 'nh &h-En% &h& P]LC 9
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
I>z>Rho;t t8nh tu=,n t8nh>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
I>>Rho;t 'O & i 'O ch8nh Ac c< &h-En% &h&>>>>>>>>>>>>>>>>>>>>>>>
I>>Rho;t 'O ')n%>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
II> R,t 1u Ac 'nhh4+ -.n% >>
II>z> Nh+ ;n &h+ch>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
II>> Nh+ ;n &h+ 4u " =@u>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
II>> Nh+ ;n &h+ n-c %ii 0ht>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Nh!n At chun%G>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> z
III> R,t 1u Ac 'nhh4+ -.n%
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Kho st thc trng s dng acid benzoic trong thcphm
SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang %
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
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SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang %
Kho st thc trng s dng acid benzoic trong thcphm
WpNP {wCP PNPo*o
r>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Pnh G ? th ;o ;nh h4+ -.n% >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Pnh G ? th ;o ;nh h4+ -.n% >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Pnh G ? th ;o ;nh h4+ -.n% >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
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SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang %i
Kho st thc trng s dng acid benzoic trong thcphm
WpNP {wCP Nfo*o
r>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
n% G R,t 1u 0ho ;t 'O & i >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
n% G R,t 1u th+ 'nh 'O ')n% >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>z
n% G Cc +Yu ch 0i@+ tr>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> n% G P4+ -.n% >>>>>>>>>>>>>>>>>>>>>>>>>>>
n% G {o ;nh h4+ -.n% >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
n% G P4+ -.n% >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
n% zG P4+ -.n% >>>>>>>>>>>>>>>>>
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SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang
Kho st thc trng s dng acid benzoic trong thcphm
n% zG {o ;nh h4+ -.n% >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
z
n% zG P4+ -.n% >>>>>>>>>>>>>>>>>>>>>>
n% zG {o ;nh h4+ -.n% >>>>>>>>>>>>>>>>>>>
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SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang &
Kho st thc trng s dng acid benzoic trong thcphm
]PN M ?|
o*o
I> ? qN ?
ron% cuOc ;$n% hin 'i9 nhu cKu thc &h+ c:n% n%h n%4= c4n%t#n%>?@ cc oi thc &h+ Fu h-9 cc nh4 ;n AuJt '/u &hi S_n% chJt
3o 1un n+ tron% S u= nhin9 'F= "Yn
4 chJt h< hc "4 "ic ; Sn% "-.t +Tc cho &h& '/u 'Oc hi9 nh
h-Bn% AJu ',n ;Tc 0h n%-Di S_n%> qic ; Sn% cc h< chJt "4 &h
%i< tron% A 29 ch, 3i,n thc &h+ '( "4 ' Nh-n% h
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SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang '
Kho st thc trng s dng acid benzoic trong thcphm
AuJt u!n "#n thc hin +Ot ;$ +c tiu c th@ nh- ;
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SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang "
Kho st thc trng s dng acid benzoic trong thcphm bc 'nh h4+ -.n% {o ;nh h4+ -.n%
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SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang (
Kho st thc trng s dng acid benzoic trong thcphm
]PN Nf Q|pNo*o
CPeNf zG CP k Q|N PC ]PM
I> ]h %i< thc &h+ 99z9z9
I>z> ?nh n%h Cc chJt 0hn% ;inh {t&to+iAin9 cc oi &*niAiin>>>>
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Kho st thc trng s dng acid benzoic trong thcphm Cc chJt ch$n% oA= h< Nh-n% h
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Kho st thc trng s dng acid benzoic trong thcphm
&h+ thuOc run% tF+ \ t, S &h^n% ] PCM> cu$i n#+ ',n 3> 7n% h.& tron% &h^n% th8 n%hi+
]hn Tn% th= &hFnG
fi$n% nh- cc nitri hoc
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SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang &&
Kho st thc trng s dng acid benzoic trong thcphm
Wo z X > th
; Tc ch, cc "i 0hun %F= h- hn% thc &h+ '^i hi nn% 'O c pciS n4= c tc Sn% Tc ch, +nh "i nJ+ +n "4 nJ+ +$c
nh-n% tc Sn% =,u '$i "i "i 0hun> c Sn% 3o 1un ch A= r< B +:i
tr-Dn% X >
?$i "i cc +u$i 3no X "4 0+ nhJt B &P >> h-Dn% S_n% 4+chJt 3o 1un tron% cc oi +Tt9 n-c ho< 1u9 n-c c %
?,n n
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SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang &'
Kho st thc trng s dng acid benzoic trong thcphm
Tc ch, ; hJ& th
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Kho st thc trng s dng acid benzoic trong thcphm
SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang &'
?$i "i con n%-Di9 0hi "4o cE th@ u= nhin
n,u #n nhi/u
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
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Kho st thc trng s dng acid benzoic trong thcphm
SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang &"
-
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37/105
Kho st thc trng s dng acid benzoic trong thcphm ]hno9 CPkP9 4 n%u=n iu 1u n%-Di i/u -.n% %F= 'Oc 1u< S< 4 +%0% th@
trn%> u= nhin9 '$i "i i/u -.n% X z+% tron% "4i n%4= th:n% 1u> nh h-Bn% ',nh thKn 0inhMOt n%hin cTu +i 'F= c< pnh cho thJ=9 +Ot ;$ &h+ +4u "4 chJt
3o 1un thc &h+ c th@ 4+ tr + trB nn hun% h#n% "4 C-Di ;u=
n%h hEn> Nh5n% chJt n4= c tc 'On% t t nn rJt 0h Ac 'nh +Tc
'O %F= hi c< ch)n%>
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
40/105
Kho st thc trng s dng acid benzoic trong thcphm
SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang &)
ron% tuKn9 cc nh4 n%hin cTu cho %Kn chu 3 tu7i u$n%
n-c & tri cF= c &h< +% +4u thc &h+ "4 +% chJt 3o
1un Uzz n Wo '9 n
qI> ]h-En% &h& Ac 'nh h4+ -.n% ]h-En% &h& 1uz>z> ]h+ "i "4 nh "c & Sn%]h-En% &h& n4= ch '-.c & Sn% '@ Ac 'nh h4+ -.n%
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
41/105
Kho st thc trng s dng acid benzoic trong thcphm
SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang &*
tron% +:i tr-Dn% bc 'nh3n% cch 'o 1u
?@ ;n &h+ ':n% nh t
CFn 0hon% z% +Yu th ch8nh Ac ',n >z%9 "4 S_n% H+
n-c9 chu=@n+Yu "4o 3nh cKu +>
h+ 0hon% +% n Lc &hKnchT< tron% 3nh cKu "4 trn% h
hu to4n 3O Sch c "4o &hVu chi,t Sun% t8ch +9 '@ n%uOi> Cc ;n &h+ n% chT< tht 1uGLJ= + +Yu th cho "4o c$i "4 n%hi/n "i + n-c> Lc chJt n%
; L4+ h
3> Ch i,t
-
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42/105
Kho st thc trng s dng acid benzoic trong thcphm
SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang &-
{
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
43/105
Kho st thc trng s dng acid benzoic trong thcphm
SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang &+
i,& tc t-En% t Kn chi,t thT 3< 3n% + Sit= t "4 Sn & tthu
'-.c "4o c_n% h
Ch) th8chG
Cc chJt 3o 1un 0hc c n%un %$c t
ron% tr-Dn% h.& n4=9 '@ 3nh cKu 8t nhJt %iD '@ oAi h< ho4n to4n 3n+>
?O hJ& th So
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
45/105
SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang '#
Kho st thc trng s dng acid benzoic trong thcphm
p pz p
ron% 'G
pz 4 'O hJ& th B >n+
p 4 'O hJ& th B n+
p 4 'O hJ& th B >n+
Ch) th8chG
qic Ac 'nh 1uz>> i@uth 0,t1u
]hKn +Yu th '-.c J= 3n% cch S_n% &i&*tG
P4+ -.n% +
ron% ' + 4 0h$i -.n% c<
]hKn +Yu th '-.c J= 3n% cch cFnG
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
46/105
SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang '&
Kho st thc trng s dng acid benzoic trong thcphm
P4+ -.n%
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
47/105
'
ron% 'G
+ *
+z
+z 4 0h$i -.n% c< +Yu th t8nh 3n% %
+ 4 0h$i -.n% c<
qI>> ]h-En% &h& chun 'O
qI>>z> N%u=n t[c
Chi,t
Chu=@n&hKn cn c^n i tron% c$c ;T "4 4+ 3$c hEi trn 3,& cchth= B
oC9 '@ n%uOi> W_n% + t
-
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48/105
SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang '#
&
qI>>> 8nh 0,t1u
P4+ -.n%
q G h@ t8ch Sch c +Yu h)t '@ chi,t9 +>
+ G Rh$i -.n% +Yu cFn9 %>
R G ?O chun c< chJt cKn Ac 'nhtho NN
"i GpciS 3noic R >z%
Nz> Chnh ch 0,t 1u c< h
{
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
49/105
SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang '&
C h u n 3+Yu
-
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50/105
CFn % +Yu cho "4o 3nh 'nh +Tc +9 n-c cJt9 + C
Wun% Sch chun 4+ "icG &h< chun hn h.& c< h
h@ t8ch 3E+G z>
]h< 'On%G CPCkkNP >M G MkP X G "">
Iq>>> 8nh ton 0,t1u
ron% 'G
C+
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
51/105
]PN PC NfPIMo*o
p> MC I| NfPIN C|
Rho ;t &h-En% &h& P]LC 'nh-.n% bc 'nh h4+ -.n% ]PeNf ]Pw] NfPIN C|
I> ]h-En% &h& chun 'O
I>z> ]h-En% &h& th> N%u=n t[c
Chi,t
Ut
Choroo+>
]hno&htz>
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
52/105
&
I>> i,nh4nh th
CFn % +Yu ch8nh Ac ',n >z%9 chu=@n to4n 3O "4o 3nh 'nh+Tc
+9 S_n% N
h+ ti,&G
o z+ RCN z
o z+ n{k
o N-c cJt ',n "ch
L[c '/u9 '@ [n%9 c>
P)t + Sch c chu=@n"4o &hVu chi,t chi< 'O9 trun% h^< 3n% PC
z th 3n% %iJ= 'o &P9 ;
Chu=@n&hKn cn c^n i tron% c$c ;T "4 4+ 3$c hEi trn 3,& cchth= B
oC9 '@ n%uOi> W_n% + tR>q >zb
+>q
q G h@ t8ch NN S_n% '@ chun 'O9
+> qz G h@ t8ch 3nh 'nh+Tc &h< +Yu9+>
q G h@ t8ch Sch c +Yu h)t '@ chi,t9 +>
+ G Rh$i -.n% +Yu cFn9 %>
R G ?O chun c< chJt cKn Ac 'nhtho NN
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
53/105
"i G
pciS
3noic
R
>z
%
N Chnh ch 0,t 1u c< h ]h-En% &h& th
Pin n
COt ;[c 02G d] X z ++ A >+
$c 'O S^n%G z+&h)t>
h@ t8ch 3E+G >
]h< 'On%G pctonitri X
COt ;[c 02G d] X z ++ A >z++9 z+
$c 'O S^n%G z+&h)t>
h@ t8ch 3E+G >
]h< 'On%G pctonitri G?+ &hot&h
COt ;[c 02G onS
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
55/105
$c 'O S^n%G z+&h)t>
h@ t8ch 3E+G >
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
56/105
]h< 'On%G Mt
h@ t8ch 3E+G >
]h< 'On%G p+oniu+ +
$c 'O S^n%G z+&h)t>
h@ t8ch 3E+G z>
]h< 'On%G CPCkkNP >M G MkP X G "">
ron% cc ch-En% trnh P]LC trn th ch)n% t:i chn ch-En% trnh
P]LC So &h_ h.& "i tr
II>> NOi Sun% &h-En% &h&
MYu chT<
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
57/105
II>> hi,t39 Sn% c "4 h< chJt
hi,t3G
P th$n% ;[c 02 n% hiu n#n% c Pit Pit Pit
]hin c9 +4n% c n=on +ii&or >+9 '-Dn% 08nh z++>
P< chJtG
P< chJt tinh 0hi,t S_n% cho &hFn t8ch>
Wun% Sch CPkz> Wun% Sch CPk
>
Wun% Sch
MkP S_n% cho
P]LC> N-c cJt Kn>
II>> Cch ti,nh4nh
II>>z> Chu n 3+Yu
CFn % +Yu cho "4o 3nh 'nh +Tc +9 n-c cJt9 + C
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
58/105
Lc 1u< %iJ= c9 c i Kn n5< 3n% &hin c S_n% cho P]LC> ?- ron% '9 %i5< 'i -.n% 'o '-.c "4 nn% 'O &hi th@
hin ; &h thuOc tu=,n t8nh> 8nh tu=,n t8nh '-.c 3i@u th 3n% h ;$t-En% 1u
hc hin
]h< +Ot S(= Sun% Sch chun
cc 0,t 1u thu '-.c9 ; Sn% &hKn +/+ UAc tron% += t8nh t8nh
ton &h-En% trnh '-Dn% 3i@u SiVn h4+ -.n% tho Sin t8ch 'nh> cc
th:n% ;$ thu '-.c ; t8nh ton '-.c d> ?@ '+ 3o =u cKu "/ t8nh
tu=,n t8nh9 th:n% th-Dn% d >>
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
61/105
'MJD]C2'J2
n% zG -En% 1u
z
z
NJ 'O ^^N
Pnh G ? th 0ho ;t 0hon%tu=,nt8nh
R,t 1u cho thJ= '-Dn% 3i@u SiVn 4 tu=,n t8nh tron% 0hon%0ho ;t
th*o &h-En% trnh = A z "i d > Pnh > Nh- "!=9
1u= trnh 'nh-.n% c t8nh tu=,n t8nh tron% 0hon%nn% 'O 0ho ;t>
I>> Rho ;t 'O & i 'O ch8nh Ac c< &h-En%&h&
?nhn%h
?O ch8nh Ac c< +Ot &h-En% &h& &hFn t8ch th-Dn% '-.c th@ hin3n% 'O
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
62/105
ch chun {W h
hc hin
?O & i 4 'O ch8nh Ac '-.c 0ho ;t tron% cc 'i/u 0in %i$n%nh qic Ac'nh'O
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
63/105
Kho st thc trng s dng acid benzoic trong thcphm
SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang "#
ch8nh Ac '-.c thc hin trn Kn 'o trn c_n% +Ot : "4 t8nh 'O ch
chun t-En% '$i9 "i =u cKu d{W >
n% G R,t1u 0ho ;t 'O & i
LKn 'o hDi %iz 9 nh- "!= &h-En% &h& c'O
ch8nh Ac t$t>
I>> Rho ;t 'O ')n%
?nhn%h9 nh- "!= 'O ')n% c
th@chJ& nh!n '-.c>
R,t u!n chun%G 1u= trnh 'nh -.n% R,t 1u cho thJ=
&h-En% &h& c 'O tu=,n t8nh t$t "i d >9 'O & i cz "4 'O ')n% 0h t$t t C thu hi z> "i {W z>>
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
65/105
SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang "'
Kho st thc trng s dng acid benzoic trong thcphm
II> R,t 1u Ac 'nh h4+ -.n% z> Nh+ ;n &h+ ch
n% G Cc +Yu ch 0i@+ tr
MYu zzz zz >
MYu z z z>n% G {o ;nh h4+ -.n%
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
66/105
NJK'O
BA_^^N`
SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang ""
Kho st thc trng s dng acid benzoic trong thcphm
Pnh G ? th ;o ;nh h4+ -.n%
P4+ -.n%
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
67/105
R,t1u ;[c 02 ' c< cc +Yu ch 0i@+tr
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
68/105
Kho st thc trng s dng acid benzoic trong thcphm
SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang ")
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
69/105
SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang "*
Kho st thc trng s dng acid benzoic trong thcphm
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
70/105
SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang "-
Kho st thc trng s dng acid benzoic trong thcphm
II>> Nh+ ;n &h+ 4u " =@u
n% G Cc +Yu t4u " =@u 0i@+ tr R,t 1u Ac 'nh h4+ -.n% z >z
MTt +(n% cKu MYu
run% 8nh
zzz r-En%
?nh9 ]C
>z >z
MTt +(n% cKu MYu
& h trJn Lon% M69
Pu=n Lon% M69 nhP!u fi >
MTt +* MYu
C+ Pu
z ]h-Dn% hi
pn9 Qu!n s M:n9
> >z
MTt +* MYu zzz rKn P-n%
?o9 >z >z
MTt 38 MYu ch N%u=t
z?-Dn% 9 > >z
MTt 38 MYu Win hnh
z N%u=Vnq#n
C9 ]C
> >z
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
76/105
nh %z
nh C-ai i/+ MYu zzP-n% L.i
z?-Dn% 9> >
nh 3Ot '!u MYu z
ChnhN%u=n
zzW N%u=Vnqit
> >z
nh &8< MYu zch N%u=t
z?-Dn% 9> >z
nh &8< MYu z
L!& h4nh
z N%u=VnPu9 h
A(
> >z
nh &8< MYu z
M( L!& {z
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
77/105
n% zG {o ;nh h4+ -.n%
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
78/105
NJK'O
BA
_H`
NJK
'OB
A
_H`
NJK'O
BA_H`
Pnh G ? th ;o ;nh h4+ -.n%
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
79/105
tr
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
80/105
Nh!n AtGW< "4o 3i@u ' t< thJ=9 '< ;$ cc +Yu 3nh 0o '/u ; Sn%
Qu< 0,t 1u trn t< thJ=9 hKu h,t cc cE ;B ;n AuJt 3nh 0o '/u tuFnth
1ui 'nh"/ h4+ -.n%
III>> Nh+ ;n &h+ n-c %ii 0ht
n% zG P4+ -.n% z >z
{5< '!u n4nh MYu
ch?n%
p q nh9 ]> L
nh9 Q> Ci d#n%9 ]C
>z >z
{5< '!u n4nh MYu
Nh4 += N-c fiiRht
Qu
Nctz
Nctz >zNctz >z
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
81/105
Lit ;oSz
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
82/105
dC H co< MYu nt >z >z
N-c c >z
MYu >z >z
MYu >z >z
MYu >z >
MYu > >z
MYu > >z
MYu >z >z
MYu > >z
MYu >z >z
MYu z >z >
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
83/105
NJK'O
BA_H`
NJK'O
BA_H
`
Pnh G ? th ;o ;nh h4+ -.n%
qi z +Yu n-c %ii 0ht 0i@+ tr< th tJt c z +Yu '/u 't tiu chun
cho &h& "/ h4+ -.n%
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
84/105
Qu< 0,t 1u trn t< thJ=9 hKu h,t cc nh4 += ;n AuJt n-c %ii 0ht
'-.c 0i@+ tr< '/u tuFn th 1ui 'nh"/ h4+ -.n%
III>> Nh+ ;n &h+ t-En%
n% zG P4+ -.n% z
-En% POt MYu
Mz >z
MYu > >z
MYu >z >z
MYu >z >
MYu >z >z
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
85/105
SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang )#
NJK'O
BA
_H`
Pnh G ? th ;o ;nh h4+ -.n% z>
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
86/105
{o ;nh 0,t1u 0i@+tr< h4+ -.n%
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
87/105
MYu > >
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
88/105
Kho st thc trng s dng acid benzoic trong thcphm
3n% ;o ;nh trn t< thJ=9 "i +Yu 0i@+ tr< th &h-En% &h&
chun 'O cho 0,t 1u c
]h-En% &h& chun 'O chu nh h-Bn% c< nhi/u =,u t$ nn n%4= n
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
89/105
SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang )"
Kho st thc trng s dng acid benzoic trong thcphm
R L|N ql RIN NfP~
I> R L|N
C nhi/u &h-En% &h& Ac 'nhh4+ -.n% "i {W z>>
{o "i &h-En% &h& ;[c 02 n% cMc S_
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
90/105
SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang )(
Kho st thc trng s dng acid benzoic trong thcphm
chJt -.n% " ;inh
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
91/105
SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang ))
Kho st thc trng s dng acid benzoic trong thcphm
II> RIN NfP~
qic ; Sn% cc chJt 3o 1un9 S_ n+ tron% S Ch8nh t t8nh chJt 1u
Wo hn ch, "/ thDi %i
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
92/105
SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang ))
lI LI| PpM RPkz O \ ,9 W
]h+ q#n {79 _i h Nhu hu!n X Rho< P< Pc thc&h+ tr-Dn% ?PR P4 NOi9 Ri@+ n%hi+ -En% thc9 thc
&h+9 Nb Rho< hc 06 thu!t9 zz>
{> L2 N%u=Vn nh9 ]h %i< tron% ch, 3i,n thc &h+9r-Dn%
?PC>
Cc "#n 3n &h& 1u= "/ 1un 2 p> L
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
93/105
SVTH: Hunh ThThy HngLp CNhn Ha K!"#
Trang )*
Intrn
-
7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
94/105
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7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577
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SVTH: Hunh ThThy HngLp CNhn Ha K!"#
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SVTH: Hunh ThThy HngLp CNhn Ha K!"#
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SVTH: Hunh ThThy HngLp CNhn Ha K!"#
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SVTH: Hunh ThThy HngLp CNhn Ha K!"#
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