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8/8/2019 Quy trnh ch bin mt

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Quy trnh ch bin mt i nhuyn

Li m u

Vi nhp sng dn dp ca cuc sng hin i khin cho nhu cu ca ngi tiu dng

c nhng thay i ng k trong nhng nm gn y. Xu hng tiu dng nghing vnhng sn phm tin li, c th chun b d dng v c li cho sc khe. Cng vi nhngbc tin t ph mi trong lnh vc cng ngh thc phm th vn ny khng cn lmt iu tr ngi. Ngy nay, chng ta c th d dng mua c mt sn phm a thch bt c u. Cng ngh thc phm mang li cho chng ta mt trin vng mi v thcphm m trc y chng ta cha c ci nhn nhn su sc v n.

Chnh v iu , nhm chng em xin gi ti c v cc bn mt s kin thc m chngem tm hiu trong thi gian gn y vi ti l Tm hiu quy trnh ch bin Mt iNhuyn. Do thi gian c hn cng nh nhng tr ngi v thc t nn nhm khng thtrnh khi nhng thiu st, s sut. Mong c v cc bn gp bi tiu lun thm sng

ng v hon ho hn. Nhm xin chn thnh cm n!I. Gii thiu

1. Tng quan v mt qu

Mt qu l cc sn phm ch bin t qu ti hoc t qu bn ch phm (pur qu, ncqu, qu sunfit ho) nu vi ng n kh 65-70%.

ng cho vo mt qu khng ch tng v ngt m cn bo qun sn phm. T bovi sinh vt trng thi co nguyn sinh nn b ngng hot ng. V vy nhiu loi mt nu

xong c th khng cn thanh trng. Mt s loi mt khc c kh thp hn cn phithanh trng vi thi gian ngn, ch yu dit nm men, nm mc, cn vi khun khngpht trin trong mt qu do mt c ng cao.

Phn ln cc loi mt cn c ng nht nh. Cht to ng c sn trong qu l pectin.Trng hp cn tng ng ca sn phm, ngi ta pha thm pectin bt, pectin c c,agar-agar (thch) hoc cc loi qu giu pectin (nh to).

Mt qu c ch bin nhiu dng, c th phn loi thnh cc dng sau:

- Mt ng

- Mt nhuyn

- Mt ming ng

- Mt rim

- Mt kh
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2. Mt nhuyn

Mt nhuyn ch bin t pur qu, c th dng ring mt chng loi hoc hn hp nhiuloi qu, c th dng pur qu ti hay pur qu bn ch phm.

Ty theo c ca sn phm m quy nh t l ng pha vo pur qu. Loi mtnhuyn c ng trong khay g yu cu c c cao hn loi mt nhuyn thng ngtrong hp st, l thu tinh hay loi ng trong thng g kn. T l phi ch nh sau:

Bng 8.1. T l phi ch mt nhuyn

Tuy c khc nhau, t l phi ch khc nhau, nhng cc loi mt u c kh l 66-67%. tng ng, c th pha thm pectin hoc agar-agar. Sn phm thng cng gi trong bao b thy tinh hoc cc thng g (10 -50l) v tin hnh thanh trng ivi bao b thy tinh.

Sn phm mt i thuc mt nhuyn c mu c trng ca i. y l mt cht lng stthng c n chung vi bnh m hoc c th phi trn lm cc loi thc ung.

II. Nguyn liu

1. i

1.1. c im thc vt

i ta l loi cy n qu thng xanh lu nm, thuc h o kim nng, c ngun gc tBrasil. Tri i thuc h sim, c tn khoa hc l Psidium guajava. Bn cnh mi v thmngon, c v i, ht i v phn rut i bn trong u mang li nhiu gi tr dinh dng vli ch cho sc khe.
http://vi.wikipedia.org/wiki/C%C3%A2y_%C4%83n_qu%E1%BA%A3http://vi.wikipedia.org/wiki/H%E1%BB%8D_%C4%90%C3%A0o_kim_n%C6%B0%C6%A1nghttp://vi.wikipedia.org/wiki/Brasilhttp://congnghedohopthucpham.files.wordpress.com/2010/06/ti-le-phoi-che.jpghttp://vi.wikipedia.org/wiki/C%C3%A2y_%C4%83n_qu%E1%BA%A3http://vi.wikipedia.org/wiki/H%E1%BB%8D_%C4%90%C3%A0o_kim_n%C6%B0%C6%A1nghttp://vi.wikipedia.org/wiki/Brasil


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Cy i nh hn cy vi,nhn, c th cao ti 10m, ng knh thn ti a 30cm. Nhngging mi cn nh v ln hn na. Thn cy chc, khe, ngn v phn cnh sm. Thnnhn nhi rt t b su c, v gi c th trc ra tng mng pha di. Cnh non 4 cnh,khi gi mi trn dn, l i xng.

Hoa lng tnh, bu h, mc tng chm 2, 3 chic, t khi u cnh m thng nch l,cnh 5, mu trng, nhiu nh vng, ht phn nh rt nhiu, phi cng nhiu. Ngoi hoath phn d dng nhng cng c th t th phn

Qu to t 4 5g n 500 700 g gn trn, di thun hoc hnh ch l. Ht nhiu, trngia mt khi tht qu mu trng, hng, vng. T khi th phn n khi qu chnkhong 100 ngy

1.2. Thnh phn ha hc

Hm lng cc ch trong 100g i

Thnh phn Hm lngCht x 2,8-5,5 gProtein 0,9-1,0 gCht bo 0,1-0,5gCan xi 9,1-17 mgPht pho 17,8-30 mgSt 0,30-0,70 mg

Vitamin A 200-400 I.UMagie 10-25 mgNatri 3 mgKm 0.230 mgng 0.103 mgMangan 0.144 mgVitamin B1 0.046 mg
http://vi.wikipedia.org/wiki/V%E1%BA%A3i_(c%C3%A2y)http://vi.wikipedia.org/wiki/V%E1%BA%A3i_(c%C3%A2y)http://vi.wikipedia.org/wiki/Nh%C3%A3nhttp://congnghedohopthucpham.files.wordpress.com/2010/06/oi.jpghttp://vi.wikipedia.org/wiki/V%E1%BA%A3i_(c%C3%A2y)http://vi.wikipedia.org/wiki/Nh%C3%A3n


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Vitamin B2 0.03-0.04 mgVitamin C 100-500 mg

Qu i c xem nh mt tri cy b dng, ngun cung cp cc sinh t A v C (tyging 100 gram c th cho n 1 gram Vitamin C), a s sinh t tp trung trong phn tht

st vi lp v mng bn ngoi qu. i c dng n sng hay ch to thnh bnh nho(custard), kem v nc gii kht, v cc loi mt.

1.3. Cng dng ca i

Ngn nga ung th: Nhiu nghin cu y hc cho thy thnh phn chit xut t l i cth gip ngn nga bnh ung th. Hn na, rut qu i cng cha cht lypocene cao, tcdng chng ung th. Folate trong i cng gip ngn nga ung th d dy.

Gim au nhc, vim nhim, sng ty: cc cht trong i c tnh kim t nhin nn c thgip khng khun, ty u.

Cha tiu chy, kit l: gip ch cho d dy, phng nga bnh tiu chy. Hn na, cnngn cn s pht trin ca vi khun v chng tit dch rut, gip ngn nga v chachng kit l.

Phng to bn: nh trong i cha ngun cht x cao. c bit ht i cho tc dng nhuntrng.

Chng cm lnh: Mt ly nc p i ti c th gip bn gim cc triu chng cm lnhnh gim ho, ty m, thng ng h hp do trong i cha ngun vitamin C cao, cccht chng oxy ha v in gii

Gim cn: i cng c li ch trong vic gim cn v cha nhiu cht x, vitamin v cckhong cht

2. ng

Saccharose l cht ngt c nhiu nht trong sn xut mc . Saccharose cn gi lng knh ,c cng thc phn t C12H12O11 , dng tinh th mu trng , d tan trong ncv tan tng theo nhit .

ng gip to gel tt, tng hng v v tng thi gian bo qun. ng s dng l

ng trng, khng dng ng vng v c th lm gim gi tr cm quan ca sn phm

Cht lng saccharose theo TCVN 1696-75

Cc ch tiu Loi 1 Loi 2Hm lng saccharose 99.67% 99.45% m 0.07% 0.12%


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Cht kh 0.15% 0.17%Cht tro 0.1% 0.15%Cht khng tan 170 mg/kg 200 mg/kgMu Trng ng nh Trng sng

Mi Bnh thng, khng c mi l.V Ngt thanh, khng c v l

3. Nc

L dung mi ha tan cc cht. Trong qu trnh ch bin ngun nc s dng phi mbo v sinh v t cc tiu chun ca B Y T

4. Acid

Gp phn to hng v v ng cho sn phm. Trong i c mt lng acid ng k

nhng trong quy trnh nn b sung thm acid a pH v 3 3,5 pectin to gel. Acid sdng l acid citric

Acid Citric c cng thc phn t l C6H8 O7 .H 2O ,dng tinh th mu trng , d tan trongnc hoc cn, kh tan trong etylen. Acid Citric c v chua du hn nhiu so vi cc acidthc phm khc nn thng c dng lm cht iu v cho sn phm mt.

III. Quy trnh ch bin mt i nhuyn


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Thuyt minh quy trnh

1. La chn phn loi x l

i trc khi a vo ch bin phi qua cc cng on phn loi loi b cc tp cht vsu bnh c th b nhim trong qu trnh bo qun v vn chuyn. Phn loi chnnhng qu c chn, kch thc ng u thun li cho qu trnh ch bin sau ny.

Mc ch:

- Loi nhng qu khng tiu chun ch bin nh: mc, thi nhn, su bnh

- Loi b cc tp cht nh ct, si, rm..trc khi ra

- Tn dng c nhng qu h mt phn nhng c th s dng c m khng nhhng n cht lng sn phm
http://congnghedohopthucpham.files.wordpress.com/2010/06/mut2.jpg


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Cng on x l nhm loi b cc phn khng n c nh cung, cc phn b gip nt.Cng on ny c tin hnh th cng. Nhng ngi cng nhn s dng dao ct gtnhng phn khng n c hay b h.

2. Ra

Mc ch

Loi tr cc tp cht, bi, t ct bm xung quanh qu, ng thi lm gim 1 lng ln visinh vt.

Yu cu

i sau khi ra phi sch, khng b dp nt, t b tn tht cht dinh dng

Nc ra phi l nc sch, m bo cc ch tiu ca B Y T. Nu dng ngun nc

thin nhin nh sng h, ging th phi qua h thng lc v st trng bng clorua vi Qu trnh thc hin

Qu trnh ra gm 2 giai on chnh

- Ngm cho b cc vt bn

- Ra xi loi sch cc vt bn

Thit b: My ra sng lc

My ra sng lc lm vic theo phng php xi. Nguyn liu trong qu trnh ra, do tcdng chuyn ng ca sng, b c st ln nhau, ln mt sng v c nc t trn phunxung xi sch. Do sng t nghing v tc dng lc 2 chiu ca sng lm cho nguynliu chuyn lin tc t ch vo n ch ra. My dng ra cc loi nguyn liu nh qutrn cng hoc cc loi ht, ngoi ra cn dng lm ngui nguyn liu sau khi x l nhit.

3. Chn

Mc ch

- nh ch cc qu trnh sinh ha xy ra trong nguyn liu, gi mu sc ca nguyn liukhng hoc t b bin i

i vi nguyn liu thc vt, di tc dng ca enzyme peroxidase, polyphenoloxidasetrong cc nguyn liu thng xy ra qu trnh oxy ha cc cht cht, to thnh flobafenc mu en. Chn, hp, un nng lm cho h thng enzyme b ph hy nn nguynliu khng b thm en.


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- Lm thay i trng lng v th tch ca nguyn liu cc qu trnh ch bin tip theoc thun li

- Gim t l tn tht nguyn liu v nng cao hiu sut ch bin

- Mt khc, khi chn protopectin thy phn thnh pectin ha tan, lm cho vic bc v bht nhanh v ph liu t. Lm tng thm thu ca cht nguyn sinh, lm cho dch bothot ra d dng

- ui kh c trong gian bo ca nguyn liu

- Nhm hn ch tc dng ca Oxy xy ra trong hp, trnh phng hp, n mn v hp st,oxy ha vitamin

- Lm cho rau qu c mu sng hn do ph hy mt s cht mu

- Lm gim lng vi sinh vt bm trn b mt ca nguyn liu

- Lm mm cu trc ca rau qu, to iu kin d dng khi cho vo bao b hoc tchv, ht ra khi tht qu

Thit b s dng

Dng c thit b chn: ni hai v h cng sut 200kg/gi

4. Ch

Mc ch- Phn chia nguyn liu rau qu c cu to mm thnh 2 phn: phn lng qua ry snxut sn phm chnh, phn b cn li trn ry

- To ng nht, thun li cho qu trnh ch bin v sau

Thit b


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Nguyn tc ca qu trnh ch l lm cho tri i b p mnh v b mt ry c ng knhnh. Phn lt qua ry l pure, phn b gi li l ht v b ch. Thit b c cu to bngthp khng r hn ch qu trnh oxy ha v gim thiu mt vitamin. ng knh l ry t0,5 mm.

5. C c

Mc ch : Qu trnh c c l bc quan trng nh hng n cht lng v cc ch tiuca sn phm mt i. C c lm cho sn phm c nng cht kh cao tng gi tr dinhdng v cm quan, d bo qun. T gim thiu c chi ph bao b vn chuyn cng

nh bo qun

Qu trnh thc hin

Lc u ng c nh lng v tin hnh ha tan bng nc nng v nng nhit ln 85 900C. Sau tin hnh phi trn trong thit b c c, mt na dung dch syrupc trn vi pur v c c nhit 80oC chn khng 5,88-7,84.104N/m2 (0,6-0,8at). Khi kh ca hn hp trong ni c c t khong 50%, li ht nt nc ngcn li vo ni, ri tip tc c c n kh 63-64% th ph chn khng nng nhit sn phm ln khong 100oC tit trng. Khi kh t ti 66-67%, cho sn phm rakhi ni.
http://congnghedohopthucpham.files.wordpress.com/2010/06/may-cha.jpg


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Thit b c c chn khng

6. Vo hp

Sn phm c cha trong l thy tinh, l c mu trong sut tng gi tr cm quan chosn phm. Thng thng, l thng c cc c 57g, 113g, 227g, 340g, hoc 454g. Hpc rt nng bi kh v hn ch s xm nhp ca vi sinh vt. Nhit rt > 70 0C vtin hnh ghp np.

7. Thanh trng

Sau khi ghp np sn phm c a i thanh trng nhit 100 0C trong ni p sutc cha sn nc, nhit ca nc chnh lch so vi nhit hp l 10 15 0C, mbo mc nc cao hn sn phm 10 -15 cm, sau cho hi nc v khng kh nn vo a nhit n nhit thanh trng v to p sut i khng, gi trong thi gian 30pht. Do bao b thy tinh kh nng truyn nhit km nn khi lm ngui phi tht ch ,s dng cc tia nc phun vo np st ca hp khi nhit ca nc tng ln v chyxung hp thy tinh hn ch b hp do tnh dn n khng u ca thy tinh. Sn phmc lm ngui trong khong 30 pht ri h p sut thit b bng p sut kh quyn v ly

sn phm ra, tip tc ngui ti nhit thng.

Vi sn phm trong thng g ln ( 10 50 kg) th khng cn qua cng on thanh trng,sn phm c lm ngui trong thit b c c chn khng xung khong 50 0C sau chuyn vo nhng thng cha c v sinh sch s. Cc thng cha thng bng gv c trng mt lp parafin hoc lt ti polietilen trnh b ngm vo thng. Bo qunkhong 6 thng nhit 10 15 0C m khng kh 70 -80%.
http://congnghedohopthucpham.files.wordpress.com/2010/06/co-dac.jpg


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8. Dn nhn

Sn phm sau khi lm ngui c a i dn nhn, v ng thng.

Nhm thc hin:

Nguyn Phi Long

Nguyn Duy Gii

ng Minh c

Nguyn Tun Kit

Phm Cao Minh Trung

Nguyn Vn Cng

V Ngc Ngn Sn

Mong c v cc bn gp bi tiu lun c hon thin hn!

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38 Responses to Quy trnh ch bin mt i nhuyn

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nhm cho mnh hi

Ch thanh trng? cha thy thi gian nng nhit l bao lu?

Trn Th Kim DungThng Su 28, 2010

Tr li

cho T hoi1. Ti sao bn khng nu syrup ring ri phi trn, nh vy mnh c th d dng kimsot c cc thng s hn.2. Cng on ch thc hin nh th no ? th cng hay dng my mc,

nhat tuongThng Su 28, 2010

Tr li

cm n kin ca bn. Nhm mnh chnh sa v post li quy trnh c th. Mong ccbn tham kho li v gp thm

minh c ngThng Su 28, 2010

Tr li

cho cc bn, cho mnh hi:1. Tri i c cu trc cng nh vy m ti sao cc bn khng nghin xay trc qu trnhch nng cao hiu qu ca qu trnh ch?

Le Han LuongThng Su 28, 2010

Tr li
http://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/feed/http://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/#comment-616http://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/?replytocom=616#respondhttp://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/#comment-594http://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/?replytocom=594#respondhttp://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/#comment-598http://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/?replytocom=598#respondhttp://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/#comment-554http://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/?replytocom=554#respondhttp://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/feed/http://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/#comment-616http://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/?replytocom=616#respondhttp://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/#comment-594http://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/?replytocom=594#respondhttp://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/#comment-598http://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/?replytocom=598#respondhttp://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/#comment-554http://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/?replytocom=554#respond


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i s dng l i chn v qua qu trnh chn nn cu trc mm hn. Nu bn nghin trcht c th b nt kh khn loi b. B qua cng on nghin mnh s tit kim c thigian v kinh t hn

minh c ng

Thng Su 28, 2010

Tr li

cho cc bn, cho mnh hi:1. Qui trnh ca bn l qui trnh sn xut jam-mt ng dng c i t puree i hay l snxut Nectar?

Le Han LuongThng Su 28, 2010

Tr li

y l mt i nhuyn c lm t pure i khc vi mt ng (lm t dch qu), khc vinectar (nc qu). Cn mt nhuyn c c, nng ng cao

Duy GioiThng Su 28, 2010

Tr li

cho minh hoi nhiet do va thoi gian chan, co the tach rieng phan vo hot roi xu ly riengphan hot khong

Nguyen Thi HIenThng Su 28, 2010

Tr li

Bn xem li quy trnh mi cp nht nh!C th tch phn ht ri x l ring theo bn nhng s mt thi gian v nhiu nhncng, vic tch phn ht bng thit b l kh kh do loi i chn kch thc khng ln.
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14/20

Minh TrungThng Su 28, 2010

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Mt i i, mnh ko lm c mn mt i ny khi bn ch cho mnh c mt qui trnh kothng s nh vy. C v bn ni ting v c nhiu cu hi v bn ang c qu nhiu bmt cng ngh cn bo mt.

AdministratorThng Su 27, 2010

Tr li

Quy trnh s sm hon thin nh cc cu hi ca cc bn. Cm n s cng tc nhit tnh.


Tr li

bn i, mnh khng hiu ch ny, ch m ch qua ry vi lc b ht y. ch qua ry vi

ng knh l 1-1,5mm h? ch ch ri lc ht lun hay sao vy?nu khng th lc htbng cch no?

Phm Th Ngc LmThng Su 27, 2010

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sau khi chn th tin hnh ch qua ry, ti y ht v b s c loi b lun. Ht c kch

thc ln s b gi li. (Cng on lc trong quy trnh l khng chnh xc lm)Cm n bn gp !!


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15/20

Ch thanh trng ca sn phm ny nh th no vy bn??

Trn Nh LinhThng Su 27, 2010

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quy trnh ny khng s dng cht bo qun ah? Nu vy th hn s dng ca sn phm lbao lu?

L Th HngThng Su 27, 2010

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Nng ng cao, pH thp,thm x l thanh trng nn khng dng thm cht boqun. Thi hn s dng l mt cu hi kh vi bt k loi sn phm no, sn phm ny chn s dng tham kho l 1 nm, nhng sau 9 thng c th cht lng gim.


Tr li

mnh khng thy bn c giai on bo n.bn khng bi kh h. mnh thy bn ghp np ri thanh trng luntin th cho mnh hi bn thanh trng ch no.bn ngui t nhin hay lm nguitrong thuet61 b thanh trng lun?nguyen thi phi phung

phiphungThng Su 26, 2010

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Vo hp nhit cao l mt cch bi kh, vi sn phm bao b thy tinh sau thanhtrng s c lm ngui t t hn ch b hp.Bn thn mt t n c nhng yu t hn ch VSV, thm na kt cu dng keo nnvic bo n khng qu quan trng so vi cc sn phm hp khc.
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16/20


Tr li

mnh mun bit bn loi b v i bng cch no?bn s dng loi bao b no?nu l thy tinh th rt nng c nh hng g n bao b k?bn s dng loi i no? da vo u phn loi, la chn nguyn liu?tran huu hoang minh

hoang minhThng Su 26, 2010

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Loi i d tnh l loi i rut , chn, v i mm nn s khng loi v, nguyn liu lachn bng cm quan. Trc khi rt th nhit ca bao b cng tng do qu trnh rann khng s h do thy tinh dn n khng u.


Tr li

Mnh thc mc ti sao sau khi c c, nhit vo hp >70C,nhit c th thp hnc khng?chng hn nh khong 50C hoc thp hn. m bo cho cht lng mttt hn

Nguyn Th HoThng Su 26, 2010

Tr linhit v hp >70 hn ch nhim VSV a nng. S lng VSV nhiu lm ko di thigian thanh trng nh hng cht lng mt. Hn na sau c c nhit cn cao, hnhit l ko di thi gian ch bin.

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17/20

Tr li

Vic h nhit xung s rt mt thi gian, v hp nhit >70 gip ngn nga VSVa nng. Thi gian thanh trng ngn hn do s lng VSV nhim vo c hn ch.


Tr li

Thi gian c c l bao nhiu?i nguyn liu s dng l i g? C cng bao nhiu?Sn phm mt i nhuyn c cha v khng?

Cho mnh hi, hp bn s dng l loi hp no?

V i MThng Su 26, 2010

Tr li

- Tht qu x l c trn vi ng& acid citric vi t l l bao nhiu th phhp?,mnh cm thy 0.2 0.25% l qu t. Theo ti liu v qu trnh thc hnh nng sn

mnh c bit lng acid citric=0.5% tht qu l ph hp. Cc bn c am ngm hnhp cho ngm ng khng? Thi gian bao lu ph hp? Hay em i c c lun?

Nguyn Th HoThng Su 26, 2010

Tr li

sau khi ch pure c c c vi ng thng theo t l 1:1 ( hm lng cht kh trong

i khng cao nh cc loi qu khc nh thm, xoi). Hm lng acid cho vo ty thucvo tnh cht nguyn liu, sn phm. pH dch pure yu cu l 3 3,5, lc ny pectin sto gel lm mt c c. Tin hnh c c lun ch khng c ngm

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18/20

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bn i, cho mnh hi, pectin m bn ni l bn b sung vo hay l trong thnh phn cai vy?

Phm Th Ngc LmThng Su 27, 2010

Tr li

hm lng pectin trong i c th to c cho sn phm. Tt nhin, trong nhiu trnghp ta c th b sung thm pectin t bn ngoi nu lng pectin trong i khng


Tr li

cho mnh hi: bn cho acid citric vo vi mc ch chng hi ng ng khng? vyhm lng acid cho vo l bao nhiu khng lm nh hng n mi v c trng casn phm?

M LnhThng Su 26, 2010

Tr li

mnh tham kho mt s quy trnh thng thng ngi ta cho acid citric t 0,2 0,25%


Tr li

cng on c c bn c c n nng cht kh l bao nhiu?C phi bn trn nc ng cng vi pure qu ngay t u ri tin hnh c c khng?V nc ng ca bn cho vo c nng bao nhiu?Ti sao bn khng dng ng tinh th trn vo m dng nc ng? Vnu bn dngnc ng cho vo th thi gian c c cng ko di, tn nhiu nng lng? Thay vo
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19/20

bn c th c c pure qu nn mt nng nht nh ri cho ng tinh th vo tiptc c c cho n khi t yu cu.Bn c kin g v cch xut ny khng?Mt thng c hm lng ng cao vy c cn thanh rng na hay khng? ti sao?

Trn Th Xun Hng

Thng Su 26, 2010

Tr li

Cht kh sau c c 66-67%.Do pure loi qu ny kh c dng trc tip ng c th gy caramen v mi nu otrn khng tt, ng c th ln tp cht vic ha tan nc s gip loi tp cht d dnghn. Nng nc ng 70%.C th dng theo cch ca bn nu m bo qu trnh khuy trn v tinh sch cang.C mt vi loi VSV c bit chu p sut thm thu kh cao Aspergilus Repens,Bact.gummosum, v vy mt s loi hp mt qu vn phi thanh trng.


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Bn cho mnh hi:

- cng on lc b ht c lm bng tay hay s dng thit b g?- Hp s dng l loi hp j ph hp vi snphm mt?- Ch thanh trng nh th no?

V Th Kim NgcThng Su 26, 2010

Tr li

trong cc quy trnh lm mt nhuyn, ngi ta thng b sung pectin vo to ccho sn phm, sao cc bn khng s dng to cu trc sn phm p hn?

Nguyn Th ThyThng Su 26, 2010
http://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/#comment-73http://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/?replytocom=73#respondhttp://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/#comment-91http://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/?replytocom=91#respondhttp://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/#comment-61http://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/?replytocom=61#respondhttp://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/#comment-60http://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/#comment-73http://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/?replytocom=73#respondhttp://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/#comment-91http://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/?replytocom=91#respondhttp://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/#comment-61http://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/?replytocom=61#respondhttp://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/#comment-60


20/20

Tr li

theo mnh tham kho th hm lng pectin trong i mt c th to c. Nhngbn c th hh iu cc bng cch b sung thm pectin ty vo yu cu ca bn vsn phm

phi longThng Su 26, 2010

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1.trong qua trinh co dac, ban su dung ky thuat nao? co dac chan khong,co dac lien tuc?mhiet do co dac la bao nhieu?

BICHLOANThng Su 26, 2010

Tr li

thit b s dng l c c chn khng. Nhit c c t 70 80C

Vn Cng

Thng Su 26, 2010

Tr li

qu trnh chn thc hin nhit bao nhiu v thi gian l bao lu thun li cho qutrnh ch sau ny? (bi v mnh thy m t bo ca i cng cng, nu chn trong thi gianngn s kh thc hin qu trnh ch)

Hunh Th Minh Hng

Thng Su 26, 2010
http://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/?replytocom=60#respondhttp://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/#comment-69http://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/?replytocom=69#respondhttp://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/#comment-51http://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/?replytocom=51#respondhttp://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/#comment-71http://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/?replytocom=71#respondhttp://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/#comment-50http://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/?replytocom=60#respondhttp://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/#comment-69http://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/?replytocom=69#respondhttp://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/#comment-51http://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/?replytocom=51#respondhttp://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/#comment-71http://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/?replytocom=71#respondhttp://congnghedohopthucpham.wordpress.com/2010/06/25/quy-trnh-ch%E1%BA%BF-bi%E1%BA%BFn-m%E1%BB%A9t-%E1%BB%95i-nhuy%E1%BB%85n/#comment-50

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