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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    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% >>>>>>>>>>>>>>>>>

  • 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!"#

    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

  • 7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577

    20/105

    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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    21/105

    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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    22/105

    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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    28/105

    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 >

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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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    Kho st thc trng s dng acid benzoic trong thcphm

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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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    Kho st thc trng s dng acid benzoic trong thcphm

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  • 7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577

    36/105

    Kho st thc trng s dng acid benzoic trong thcphm

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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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  • 7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577

    40/105

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  • 7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577

    41/105

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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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  • 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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  • 7/22/2019 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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  • 7/22/2019 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

    58/105

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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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  • 7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577

    62/105

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  • 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!"#

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    ch8nh Ac '-.c thc hin trn Kn 'o trn c_n% +Ot : "4 t8nh 'O ch

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  • 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

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    n% G Cc +Yu ch 0i@+ tr

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  • 7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577

    66/105

    NJK'O

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    SVTH: Hunh ThThy HngLp CNhn Ha K!"#

    Trang ""

    Kho st thc trng s dng acid benzoic trong thcphm

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  • 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

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    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

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  • 7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577

    76/105

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  • 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

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  • 7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577

    79/105

    tr

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    80/105

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  • 7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577

    81/105

    Lit ;oSz

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    82/105

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  • 7/22/2019 Khao Sat Thuc Trang Su Dung Chat Bao Quan Acid Benzoic Trong RthR4bng4k 20130415102614 577

    83/105

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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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  • 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!"#

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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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  • 7/22/2019 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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    Kho st thc trng s dng acid benzoic trong thcphm

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  • 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!"#

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    Kho st thc trng s dng acid benzoic trong thcphm

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