`practica 3 ..textura

“Año de la consolidación del Mar de Grau”

UNIVERSIDAD NACIONAL JOSÉ FAUSTINO FAUSTINO SÁNCHEZ SÁNCHE Z CARRIÓN Facultad de Ingeniería Agraria, Industrias Alimentarias Ambiental Escuela Académico Profesional de Ingeniería en

Evaluación sensorial PRACTICA DE LABORATORIO: LABORATORIO: SELECCIÓN DE JUECES PARA ANÁLISIS DE TEXTURA DOCENTE: ING. DANTON DANTON MIRANDA, Jorge CICLO: VIII INTEGRANTES:  

CLAROS OSORIO, Patriia De! Pi!ar ORI"UELA MALAS#UE$, %i!&a Me!i'a

HUACHO – PERÚ 2 016 INTRODUCCION

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EAP ING IND. ALIMENTARIAS

E(ta E(ta ara arate ter)( r)(ti tia a *er+ *er+it itee a*re a*rei iar ar !a ir+ ir+e' e'a, a, (-ai (-ai&a& &a&,, (--! (--!e/ e/ia ia,, re(i( re(i(te te/ /ia ia a !a +a(tiai0/, i1ro(i&a&, et., &e !o( *ro&-to( o+e(ti1!e(. La +e&ii0/ o12etia &e !a te3t-ra /o (0!o &eter+i/a !a re(i(te/ia &e! *ro&-to a !a -er'a a*!ia&a (i/o 4-e a5-&a a (e!eio/ar: tie+*o 5 te+*erat-ra &e !aa&o 5 oi0/6 ti*o a&e-a&o &e e+1a!a2e 5 +a4-i/aria a&e-a&a *ara *e!a&o 5 orta&o. A() o+o a &eter+i/ar e! gra&o &e +a&-re' 5 a *re&eir e7a a*ro3i+a&a &e 0*ti+a reo!ei0/. La arater)(tia te3t-ra e( !a 4-e *re(e/ta +a5or o+*!e2i&a& e/ (- &e(ri*i0/. Se &ei/e o+o e! o/2-/to &e *ro*ie&a&e( reo!0gia( 5 &e e(tr-t-ra 8geo+9tria( 5 &e (-*eriie &e -/ a!i+e/to &a&o 4-e (e *eri1e/ *or !o( ree*tore( +e;/io(, t;ti!e(, a-&itio( 5 i(-a!e(. La( arater)(tia( &e te3t-ra (e !a(iia/ e/ +e;/ia(, geo+9tria( 5 otra(. E/ !o( a!i+e/to( !a *a!a1ra textura (e -ti!i'a -a/&o (e *rete/&e &e(taar !a (e/(ai0/ 4-e /o( *ro&-e (- e(tr-t-ra o !a &i(*o(ii0/ &e (-( o+*o/e/te(, 5 (e 7a/ 7e7o a!g-/o( i/te/to( *ara /or+a!i'ar (- +e&i&a 8/or+a ISO <=>?. < =>?. La +e&i&a &e !a te3t-ra &e !o( a!i+e/to( /o e( -/a tarea ;i!. E! *roe&i+ie/to !;(io o/(i(te e/ i/itar a a!g-ie/ a &eg-(tar e! a!i+e/to e/ -e(ti0/ 5 *e&ir!e, &e(*-9(, 4-e /o( &9 (- o*i/i0/. Co/ e(ta i&ea, (e (-e!e e/tre/ar a -/ gr-*o &e e3*erto( *ara 4-e re(e@e/ &e !a +a/era +;( o12etia *o(i1!e 5 -ti!i'a/&o t9r+i/o( orrie/te( !a( arater)(tia( 4-e 7a/ &etet &eteta& a&oo e/ !o( !o( a!i+ a!i+e/t e/to(. o(. Se *rete *rete/&e /&e 4-e 4-e e(te e(te gr-*o gr-*o orga orga/o /o!9 !9*t *ti ioo re*re re*re(e/ (e/te te a! o/(-+i&or t)*io 5 (ea a*a' &e &ar re(*-e(ta( aerta&a(. C!ara+e/te (e trata &e -/ *roe&i+ie/to &e +e&i&a +-5 (-12etio.

I

OBJETIVO








II

FUNDA!ENTO TEORICO A LA TE"T TE"TUR URA A E( !a *ro*ie&a& (e/(oria! &e !o( a!i+e/to( 4-e e( &eteta&a *or !o( (e/ti&o( &e! tato, !a i(ta 5 e! o)&o, 5 4-e (e +a/iie(ta -a/&o e! a!i+e/to (-re -/a &eo &eor+ r+a ai0 i0/. /. La te3t te3t-r -raa /o *-e& *-e&ee (er (er *er *eri1 i1i& i&aa (i e! a!i+ a!i+e/ e/to to /o 7a (i&o (i&o &eor+a&o. Para +e&ir !a( &eor+aio/e( &e !a +-e(tra o *ara ea!-ar (- ti*o &e te3t-ra 8go+o(o, a&7e(io, &-ro, et. (e *-e&e &ar -(o a !a ai&a& 1-a! 8*a!a&ar, !e/g-a, &ie/te(. La ai&a& 1-a! e+*!ea !o( ree*tore( -t;/eo( *ara ea!-ar -/a +-e(tra a/te( 5 &e(*-9( &e +a(tiar!a. A! !!e !!ear ar a a1o a1o *r-e *r-e1a 1a(( (e/( (e/(or oria ia!e !e(( &e te3t te3t-r -ra, a, e( /ee /ee(a (ari rioo rea! rea!i' i'ar ar -/ e/tre/a+ie/to a&e-a&o &e !o( 2-ee(, !o +;( i+*orta/te e( 4-e 4-e&e 1ie/ !aro *ara e!!o( 4-e e( !o 4-e &e1e/ +e&ir. +e& ir. E( &i)i! &e(ri1ir o(a(  o(a( ta/ (-12etia( o+o (o/ !o( atri1-to( (e/(oria!e( 5 7aer 4-e to&o( !o( 2-ee( e/tie/&a/ !o +i(+o. E! a/;!i(i( &e Peri! &e Te3t-ra &e -/ a!i+e/to *re(e/ta o+*!e2i&a& e/ t9r+i/o( &e (-( arater)(tia( *or !o -a! o+*re/&e &e !o( (ig-ie/te( *ar;+etro( o atri1-to(: +e;/ia(, geo+9tria( 5 &e o+*o(ii0/, a() o+o e! or&e/ e/ e! -a! 9(to( (e *re(e/ta/ &e(&e !a *ri+era +or&i&a 5 a tra9( &e !a +a(tiai0/ +a( tiai0/ 7a(ta 7a( ta o/(-+ir  o/(-+ir e! *ro&-to. E/ e(ta te(i( (e e(ogi0 &e(arro!!ar -/a +eto&o!og)a a&e-a&a *ara !o( atri1-to( +e;/io( !a -a! (e !a &e(arro!!ar; *o(terior+e/te.

A#$%&'#() !*+,-%+() Re!a Re!attio io a !a rea reai i0/ 0/ &e! &e! a!i+ a!i+e/ e/tto a/te a/te e! e(e(-er er'o 'o,, i/&i i/&ia a// e/ (i e! o+*orta+ie/to +e;/io &e! a!i+e/to a/te !a &eor+ai0/. A (- e' (e &ii&e e/: Pri+ario( 5 Se-/&ario(.

A#$%&'#() .*+,-%+() P$%./$%(): So/ a4-e!!o( 4-e (e re!aio/a/ o/ !a *ro*ie&a& +e;/ia o+o !a -er'a, &eor+ai0/ o e/erg)a 5 (o/: D-re'a, o7e(ii&a&, i(o(i&a&, e!a(tii&a&, a&7e(ii&a&. A#$%&'#() .*+,-%+() S*+'-/$%(): B-ero/ rea&o( *ara 7aer -/a arateri'ai0/ !o +;( (ig/iiati (ig/iiatia a *o(i1!e *o(i1!e *ara !o( i/&ii&-o( i/&ii&-o( ao(t-+1ra&o( ao(t-+1ra&o( a -/a ter+i/o!og)a ter+i/o!og)a *o*-!ar, +ie/tra( a! +i(+o tie+*o (e +a/tie/e/ e/ o/or&a/ia o/or& a/ia o/ !o( *ri/i*io( reo!0gio( 1;(io(.








A#$%&'#() * +(.()%+%3-: So/ !o( 4-e a*are/te+e/te i/&ia/ !a *re(e/ia &e a!g/ o+*o/e/te e/ e! a!i+e/to, o+o (er)a/ !a 7-+e&a&, !a rago(i&a&, !a 7ari/o(i&a&, et. B PRUEBAS PRUEBAS SENSORIALES SENSORIALES PAR PARA A SELECC SELECCIÓN IÓN DE JUECES JUECES P$'*&/) * )*-)%&%4%/ /$/ %*-#%5%+/+%3- * )/&($*) Tie/e o+o i/a!i&a& &eter+i/ar !a a*tit-& &e !o( ata&ore( *ara &i(ti/g-ir !o( i/o (a1ore( -/&a+e/ta!e(: &-!e, ;i&o, (a!a&o, a+argo 5 -+a+i. E/ e(ta *r-e1a &e (e/(i1i!i&a& !o( 2-ee( (e/(oria!e( i&e/tiiaro/ !o( i/o (a1ore( 1;(io( e/ -/a i!a o/ &ie' +-e(tra( o/ &i(ti/ta( o/e/traio/e(. E(ta *r-e1a *er+iti0 a! 2-e' &e(arro!!ar !a a*ai&a& g-(tatia *ara a+i!iari'ar(e o/ !o( (a1ore( 1;(io(.

P$'*&/) * )*-)%&%4%/ /$/ *#*++%3- * '.&$/4 E(te ti*o &e *r-e1a( (e a*!ia *ara +e&ir !a (e/(i1i!i&a& g-(tatia &e !o( i/o (a1or (a1ore( e( 1;(i 1;(io o(( !o( !o( -a! -a!e( e( (e e/-e e/-e/t /tra ra// &e or+a or+a rei reie/ e/te te e/ &ie &iere/ re/te te(( o/e o/e/t /tra rai io/e o/e(, (, !o( !o( 2-e 2-ee( e( a/a! a/a!i' i'aro aro// !a( !a( aria ariai io/e o/e(( &e o/ o/e/t e/tra raio io/e( /e( e i&e/tiiaro/ e! (a1or e/tre &ie' +-e(tra(. Para e(ta *r-e1a &e (a1or e( /ee(ario o/oer !a 7a1i!i&a& &e !o( 2-ee( *ara !a *ere*i0/ &e !o( (a1ore( 1;(io(, a() o+o o/oer (- o/e/trai0/ &e -+1ra! &e! (a1or. Se &ei/e -+1ra! o+o !a o/e/trai0/ +)/i+a a !a -a! !a +a5or)a &e !o( 2-ee( *-e&e/ *eri1ir orreta+e/te e! (a1or 4-e (e e(t; ea!-a/&o e/ !a *r-e1a.

P$'*&/ * ($*-/.%*-#( +(- *)+/4/ *)#,-/$ E/ !a *r-e1a &e or&e/a+ie/to o/ e(a!a e(t;/&ar (e *re(e/ta/ aria( +-e(tra( o&iia&a( a !o( *a/e!i(ta(, o/(i(te e/ 4-e !o( *a/e!i(ta( or&e/e/ -/a (erie &e +-e(tra( (eg/ -/a e(a!a e(t;/&ar 4-e e+*!ea *ro&-to( a!i+e/tiio( /aio/a!e( e/ or+a reie/te *ara a&a -/a &e !a( arater)(tia( o atri1-to( 4-e (e e(t9 ea!-a/&o.

C CRITER CRITERIOS IOS PARA ARA PRESELEC PRESELECCIÓ CIÓN N DE JUECES JUECES PARA PARA PRUEBAS PRUEBAS DE SABOR  TE"TURA G*-*$/4.*-#* )* *7/48/- +'/#$( +$%#*$%() $%-+%/4*):








ea!-ar *ro*ie&a&e( e/tre a!g-/a( +-e(tra( *ara o1te/er re(-!ta&o( *rei(o( 5 ;!i&o(. Para Para ea! ea!-ar -ar e(te e(te rite riterio rio (e rea!i rea!i'a 'a// &ier &iere/ e/te te(( *r-e1 *r-e1a( a( (e/(or (e/(oria ia!e !e(( *ara *ara &eter+i/ar a!g-/a *ro*ie&a& (e/(oria! e(*e)ia 8E2+: Pr-e1a &e 7a1i!i&a& *ara ea!-ar atri1-to( &e te3t-ra. D%)(-%&%4%/: E! 93ito &e !a( *r-e1a( (e/(oria!e( &e*e/&e &e !a &i(*o/i1i!i&a& 4-e 4-e te/g te/ga/ a/ !o( !o( a/&i a/&i&at &ato( o( *ara *ara rea!i rea!i'ar 'ar to&a( to&a( !a( !a( *r-e1 *r-e1a( a( e/ -/ tie+ tie+*o *o &eter+i/a&o. Se &e1er; rea!i'ar -/a *!a/iiai0/ &e !o( 7orario( &e !a( *r-e1a( (e/(oria!e( 2-/to o/ !o( a/&i&ato( o/ e! i/ &e /o i/tererir otra( atii&a&e( 4-e +a/te/ga/ e!!o(. I-#*$): E(ta *ro*ie&a& e( +-5 i+*orta/te e/ to&o( !o( a/&i&ato(. Lo( a/&i&ato( &e1e/ te/er i/ter9( e/ !a( *r-e1a( 4-e !!ea/ a a1o *ara /o aetar !o( re(-!ta&o(, (e !o( &e1e +otiar 5 &etetar a a4-e!!o( a/&i&ato( a 2-e' 4-e +-e(tre/ 1-e/a &i(*o(ii0/ *ara !!ear a a1o !a( ea!-aio/e(. Se &e1e e3*!iar e! o12etio &e !a( *r-e1a( (e/(oria!e( 5 !a i+*orta/ia 4-e tie/e/ tie/e/ *ara !a i/&-(tria 5 !a i/e(tigai0 i/e(tigai0/, /, !o( o/&-tore( o/&-tore( &e !a( *r-e1a( &e1e/ e/tregar e(t)+-!o( a !o( 2-ee( 4-e e(t9/ &i(*-e(to( a *ro1ar !a( +-e(tra( &e or+a o/(ta/te. E( i+*orta i+*orta/te /te o/o o/oer er (i !o( a/&i&a a/&i&ato( to( *re(e/t *re(e/ta/ a/ a!g-/a a!g-/a e3e*i e3e*i0/ 0/ *ara o/(-+ o/ (-+ir ir a!g/ a!i+e/t a!i+e/too o *ro&-to *ro&-to &e1i&o &e1i&o a (- +eta1o!i +eta1o!i(+o (+o 8a!ergia 8a!ergia(, (, ra'o/e( -!t-ra!e(, 9t/ia( o &e otra )/&o!e. La a*ai&a& &e o/e/trai0/ /o &e1e (er aeta&a *or i/!-e/ia( e3ter/a( a! +o+e/to &e rea!i'ar !a( *r-e1a( (e/(oria!e(. F'-+%(-/.%*-#(: Se &a e! a(o &e 4-e -/a *er(o/a, a! e(tar ea!-a/&o -/ a!i+e/to, e3agere a! a(ig/ar !a( a!iiaio/e( a !a +-e(tra. Por e2e+*!o (i e(t; +i&ie/&o &-!'or 5 !a +-e(tra !e *aree *oo &-!e, i/+e&iata+e/te a(ig/a !a a!iiai0/ +)/i+a &e &-!'or 5 (i !a +-e(tra !e *aree +;( &-!eF (i/ i+*ortar -;/toF -;/toF !e &a !a a!iiai0/ a!iiai0/ +;3i+a &e e(a *ro*ie&a&. *ro*ie&a&. E(to *-e&e &ar(e a *e(ar &e 4-e !a( *er(o/a( 7a5a/ +o(tra&o 7a1i!i&a&, i/ter9( 5 &i(*o/i1i!i&a&. C-a/&o e(to (-e&e 7a5 4-e tratar &e 4-e !o( 2-ee( (e orri2a/ 5 (i /o !o 7ae/ 7a5 4-e e!i+i/ar!o( &e! gr-*o.

H*$$/.%*-#/) /$/ P$*9)*4*++%3- * J'*+*) /$/ S/&($  T*;#'$/ Co+o *arte &e! *roe&i+ie/to *roe&i+ie/to &e *reF(e!ei0/ *reF(e!ei0/ &e 2-ee( *ara e(te *ro5eto, (e -ti!i'aro/ e/-e(ta( 5 +ateria! i+*re(o o+o 7erra+ie/ta( *ara !a a*!iai0/ &e !a +eto&o!og)a a e+*!ear. (e/(oria! e( -/a o+1i/ai0/ o+1i/ai0/ &e -e(tio/ario( -e(tio/ario( E-+'*)#/ )*-)($%/4: La e/-e(ta (e/(oria!








Para !a *reF(e!ei0/ &e 2-ee( (e/(oria!e(, (e reo+ie/&a 4-e e! e/-e(ta&o e/-e(ta&o /o *re(e/te a!g/ ti*o &e &i(a*ai&a& & i(a*ai&a& 4-e *-e&a aetar (-( (e/ti&o(, a!g/ ti*o &e a!ergia e/er+e&a& o 4-e (e e/-e/tre e/ trata+ie/to +9&io, i/or+ai0/ (o1re ta1a4-i(+o 5 +a!o( 7;1ito( !o( -a!e( *-e&a/ aetar (-( a*ai&a&e( (e/(oria!e(, o/ e! i/ &e o1te/er -/a +a5or *rei(i0/ e/ !o( re(-!ta&o( &e !a( &eg-(taio/e(. Otra i/or+ai0/ 4-e (e regi(tra e/ !a e/-e(ta (o/: /o+1re, e&a&, (e3o, /ie! e&-atio, o-*ai0/ at-a! 5 otro( &ato( 4-e *er+ita/ a! i/e(tiga&or !oa!i'ar a! 2-e' -a/&o (e re4-iera &e (-( (eriio(.

III III !AT !ATERIA ERIALE LES S  !ET !ETODO DOS S III III11 !ATERIA ERIAL LES: ES: • • •

Re1a/a&a( &e *a/ &e +o!&e A'ar 1!a/a i+*a!*a1!e 8*o!o +-5 i/o -ti!i'a&o e/ *a(te!er)a P!ato( &e(arta1!e( To(ta&ora










III2 III 2 !ETODOS: !ETOD OS: Se -ti!i'a !a *r-e1a &e or&e/a+ie/to &e a-er&o a (- gra&o &e &-re'a e/ or+a reie/te. A !o( 2-ee( (e !e( *i&e 4-e -ti!ie/ e! tato o/ e! )/&ie 5 e! *-!gar, 5o e! *ri+er +or&i(o, *ara o1(erar e! gra&o &e &-re'a &e !a( +-e(tra( &e *a/ to(ta&o. Para *re*arar !a( +-e(tra( (e &e1e o!oar !a( re1a/a&a( &e *a/ e/ !a to(ta&ora a &iere/te( tie+*o( &e a!e/ta+ie/to, &e ta! +a/era 4-e (e o1te/ga/ i/o tie+*o( o/ !o( 4-e (e !ogre/ &ier(o( gra&o( &e &-re'a, te/ie/&o e/ o/(i&erai0/ e! /ie! &e &ii-!ta& &ii-!ta& 4-e (e 4-iera &ar a !a( *r-e1a( 5 !a +e/o( /otoria a*arii0/ a*arii0/ &e o!or 4-e /o *-e&a (er o-!ta&o o/ e! e(*o!oreo &e! a'ar (o1re (- (-*eriie. A +a5or &ii-!ta& !a &iere/ia e/tre tie+*o( &e to(ta&o (er; +e/or, *er+itie/&o o/ e!!o 4-e e! gra&o &e &-re'a e/tre -/ tie+*o 5 otro (ea +;( &i)i! &e &ier &iere/ e/i iar6 ar6 gra&o gra&o(( 4-e 4-e *-e *-e&e &e// (er &i( &i(ri+ ri+i/ i/a& a&o( o( o/ o/ !a -ti! -ti!i' i'ai ai0/ 0/ &e -/ *e/etr0+etro (i e! a(o !o &e+a/&e. La( +-e(tra( &e1e/ (er ret;/g-!o( &e H3 < +, e3tra)&o( *or orte &e !a *arte e/tra! &e !a re1a/a&a &e *a/ to(ta&a o/ -7i!!o &e/ta&o.








P&E'I*T& * I'D&

CODIGO* DE '& E%&'&CIO E%&'&CIO E TE,T+&

120 120 &GE' 285 DIEGO 120 GE+*O 120 4E'& 120 P&ME'& 285 M&+I& 285 'EDI 285 +IC&+DO 1. Gráf Gr áfco co 285 +O*& de los resultados totales resultados o!tenidos "or la ta!la #atri$ 184 184 184 184 184 184 184 //3 184 184

224 224 120 /0 224 224 224 103 120 120

/0 /0 //3 //3 /0 /0 138 138 //3 //3

E%&'(&CIO) *E)*O+I&' E) TE,T(+&

- DE E++O +

- DE &CIE+TO 48%

53%








/.5 'a ta!la 6 grafco "or te7tura resultados o!tenidos de la ta!la #atri$

- DE E++O+

CODIGO

M.B (A184) B (A224) D (A138) M.D (A285)

10 50 80 50

"orcenta:e DE E++O+ "or te7tura 09

9

9








E/ e(ta graia *o&e+o( eriiar 4-e e/ !a ea!-ai0/ (e/(oria! re(-!to: •

•

•

•

V

De  2-ee(, (o!o  *er(o/a /o reo/oi0 !a te3t-ra +;( 1!a/&a 8A=, !o 4-e re*re(e/ta e! . De  2-ee(, < *er(o/a( /o reo/oiero/ reo/oiero/ !a te3t-ra 1!a/&a 8A??=, !o 4-e re*re(e/ta e! < . De  2-ee(,  *er(o/a *er(o/a /o reo/oiero/ reo/oiero/ !a te3t-ra te3t-ra &-ra 8AK, !o 4-e re*re(e/ta re*re(e/ta e! . De  2-ee(, < *er(o/a /o reo/oiero/ a te3t-ra +;( &-ra 8A?<, !o 4-e re*re(e/ta e! <.

DISCUCIONES •

•

•

Seg/ !o( re(-!ta&o( o1te/i&o(, e( *reo-*a/te 5a 4-e e!  &e !o( *a/e!i(ta( /o reo/oiero/ !a te3t-ra &-ra 8AK, e(te trata+ie/to te/)a !a +a5or (e/(ai0/ &e &-re'a 4-e !a otra 8A?<6 La *er(o/a 4-e aert0 reo/oie/&o reo/oie/&o !o( trata+ie/to( trata+ie/to( &e!ara, 4-e (- &ei(i0/ -e *or e! *ar&ea+ie/to &e !a +-e(tra 5 /o *or !a te3t-ra. E/ e(ta ea!-ai0/ &e1e+o( re(atar 4-e *ara -/a +-e(tra &e e(ta )/&o!e (e &e1er; 7aer -/a rit-ra +e2ora&a.








•

VII

Se reo+ reo+ie ie/& /&aa 4-e 4-e !a( !a( +-e(t +-e(tra( ra( -(a&a -(a&a(( *ara *ara !a( !a( *r-e1a *r-e1a(( (e/( (e/(ori oria! a!e( e( (ea/ (ea/ *re*ara&a( e! +i(+o &)a &e !a (e(i0/, o/ +;( 9/a(i( e/ e! a(o &e te3t-ra &o/&e !a 7-+e&a& 5 e! a+1ie/te a!tera/ !a( arater)(tia( te3t-ra!e( &e! *ro&-to &a/&o re(-!ta&o( err0/eo( *or *arte &e !o( 2-ee( (e/(oria!e(. De !o(  2-ee( (e/(oria!e( (e!eio/a&o( (e!eio/a&o( (o!o  a(erto e/ to&o, e(to 4-iere &eir 4-e (o!o  2-e' e( a*to.

BIBLIOGRAFIA Gia &e! *roe(or Torri orrie!! e!!aa +ora!e( +ora!e(.. Et. Ea!-a Ea!-ai0 i0// Se/(ori Se/(oria! a! a*!ia a*!ia&a &a a !a I/e(t I/e(tiga igai0 i0/, /, &e(arro!!o 5 a!i&a& e/ !a I/&-(tria A!i+e/taria. P;g. ?? Me;/ia, U/ier(it5 o at7. Ma/-e! E!ie(. Cate&r;tio &e Cie/ia &e Materia!e(, U/ier(i&a& Po!it9/ia &e Ma&ri&, Ma&ri&, E.T.S E.T.S.I. .I. Ca+i/o(. Ca+i/o(. E&itor E&itor &e! !i1ro: !i1ro: Str-t-ra! Str-t-ra! io!ogia! io!ogia! Materia!(, Perga+o/ Pre((, ?. Sa/ Sa/7oF 7oFE. E. o ota taFJ. FJ.J. J. &e Ca(t Ca(tro6 ro6 I/tr I/tro&o&-i i0/ 0/ a! A/;!i( /;!i(i( i( Se/(o Se/(ori ria! a! &e !o( !o( A!i+e/to(. P;gi/a K>6 P;gi/a K?6 P;gi/a K?<. Diego e!!i&o G-errero6 Ma/-a! &e /-trii0/ 5 +eta1o!i(+o. P;gi/a =K.










`practica 3 ..textura

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