cong nghe san xuat nem chua
TRANSCRIPT
-
7/28/2019 Cong Nghe San Xuat Nem Chua
1/23
CNG NGH SN XUT
NEM CHUA
-
7/28/2019 Cong Nghe San Xuat Nem Chua
2/23
Gii thiu v nem chua
Nem chua l loi thc phm ln menlactic t tht, c nhn dn ta rt a thch.Nem chua ca mi vng c mt hng v c
trng ring.- Min Bc: Nem V ( T Lim, H Ni ),
Nem Ph T ( Bc Ninh )..
- Min Trung: Nem chua ng Ba(Hu),Nem chua Ch Huyn (Bnh nh )- Min Nam: Nem Th c (H Ch
Minh), Lai Vung ( ng Thp)
-
7/28/2019 Cong Nghe San Xuat Nem Chua
3/23
Ai v Vinh Thnh qu emn nem ch Huyn, m xem
ht tung
Nem chua ch Huyn Giyquyn Sa Hunh
Nu xa mc nu, hai amnh ng xa.
-
7/28/2019 Cong Nghe San Xuat Nem Chua
4/23
1. Nguyn liu sn xut nem chua
1.1. Tht nc Cc yu cu ca thtTht nc mi nhn t l
git m ( tht nng).Phi l tht nc i sau hoctht mng.
Tuyt i khng cra tht qua nc. hn chti a m v vi sinh vt
thm nhp
-
7/28/2019 Cong Nghe San Xuat Nem Chua
5/23
1.2. Da heo
Vai tr ca da heo-Cht n.
-Cht kt dnh cc phn t
trong m c.-Gip nh hnh sn phm.
-Lm tng gi tr cm quan,
tng gin, dai-T l gia lng tht nc vda heo l 3:7
-
7/28/2019 Cong Nghe San Xuat Nem Chua
6/23
1.3 Cc loi gia v
Gia v
-
7/28/2019 Cong Nghe San Xuat Nem Chua
7/23
ng:
To hng v cho nem.
L c cht cho qu trnh ln menlactic.
Gip trng thi lin kt gel thm cht.
Mui:To v mn cho sn phm.
c ch vi sinh vt thi pht trin gy
h hng sn phmCn s dng vi nng thch hp.
-
7/28/2019 Cong Nghe San Xuat Nem Chua
8/23
Bt ngt:Gip to vB sung rt t
Ti:
Vai tr ca tiL gia v p, kh mi hay tomi.
Tc dng dit khun mnh i vicc vi sinh vt: Staphylococus,Salmonella, Shigella
-
7/28/2019 Cong Nghe San Xuat Nem Chua
9/23
Tiu:
Vai tr ca tiu
To v cayKhng vi khunKhng nm mc
Kch thch tiu hat:Cha tinh du, vitamin C, vitamin
K, -caroten, mt s chtkhongAlkaloid to mi thmv to v cay.Cha Phitocide l cht khng sinh
thc vt.
-
7/28/2019 Cong Nghe San Xuat Nem Chua
10/23
Bao b:
L vng (l i)Bao nylon
L chui
-
7/28/2019 Cong Nghe San Xuat Nem Chua
11/23
2.S quy trnh snxut nem chua Vit Nam
-
7/28/2019 Cong Nghe San Xuat Nem Chua
12/23
Trn u
Qut nhuyn
p
xay
Luc chn
Ra
ro
Lm sch
Tch mCt si
Lc
Da heo
Gia v
Ti xay
Tht heonng
Gn
M
-
7/28/2019 Cong Nghe San Xuat Nem Chua
13/23
Nhit phng 3-5 ngy
p nh hnh
Sn
phm
Vo vin
Gi
Gi
Ln men
L chui
t, tiTiu ht
L i
-
7/28/2019 Cong Nghe San Xuat Nem Chua
14/23
3.Cc qu trnh xy ra trong nem chua
S acid ha l s bin i c trng nhtca qu trnh hnh thnh sn phm. y l ktqu ca qu trnh chuyn ha k kh cc hpcht ng nh s hot ng ca vi khun
lactic.Acid lactic to ra hng v c trng,
rn chc thch hp cho sn phm. Ngoi ra
acid lactic cn c tnh cht st trng, c chs pht trin ca nhiu vi sinh vt gy hhng sn phm.
-
7/28/2019 Cong Nghe San Xuat Nem Chua
15/23
Mu sc c trng ca sn phm tht cth hin bi cc sc t c trong tht ch yu lmyoglobin.
Myoglobin chuyn sang dng metmyoglobinnn lm cho tht c mu thm.
Hng thm ca sn phm tht ln men ctao ra bi cc loi gia v v cc acid sinh ratrong qu trnh ln men. Vi nng acidcng cao th hng thm cng mnh.
4.Bin i mu sc v hng thm
-
7/28/2019 Cong Nghe San Xuat Nem Chua
16/23
5.H vi sinh vt
S chuyn ha ng thnh acid lactic nhhot ng ca vi khun Lactobacillus,pediococcus, Microccocus,Clostridium
Trong nhiu nht v ng vai tr quan trngnht l chng Lactobacillus.
Chng Lactobacillus ngoi vai tr chnh l sinh
acid lactic, cn c kh nng sinh ra cc chttham gia vo qu trnh to hng thm chosn phm.
-
7/28/2019 Cong Nghe San Xuat Nem Chua
17/23
6.Cc yu t nh hng
Nguyn liu.Bao b: l vng (hay l i), nylon, l chui.H vi sinh vt.
Thao tc tin hnhTo ym kh pH : 5.6-6.2
Nhit ln men: 27 30oCThi gian ln men: 4-5 ngy (ma h)
5-7 ngy (ma ng)
-
7/28/2019 Cong Nghe San Xuat Nem Chua
18/23
7.Yu cu i vi nem
Hnh dng bn ngoi: gi p mt, lp lchui chuyn sang mu vng xanh nhng khng bkh, khng b m, khng b mc.
-
7/28/2019 Cong Nghe San Xuat Nem Chua
19/23
M lp bao gi:
Lp l i chuyn sang mu sm.
Nem chua c mu hng t nhin, mi thm catht chn kt hp vi mi gia v to s hi ha, kchthch v gic,B mt nem chua c trn mn, kt dnh, khng
m, khng nht, khng nhim mc trng, xanh.
Khi n: dai, gin,ngt, mn, chua, cay.
-
7/28/2019 Cong Nghe San Xuat Nem Chua
20/23
8.Y t
Dinh dng v v sinh an tonthc phm nem chua
-
7/28/2019 Cong Nghe San Xuat Nem Chua
21/23
Thnh phn dinh dng ca nem chua
Thnh phn dinh dng n v 100g n cNng lng Kcal 143H
2O g 68.0
Protein g 21.7
Glucid tng hp g 4.3Lipid g 3.7
Canxi mg 24.0
Photpho mg 78.0
T h bi kh k th
-
7/28/2019 Cong Nghe San Xuat Nem Chua
22/23
Trong nem nu ch bin khng k th vntn ti nhng loi vi khun gy thi ra, vi khungy bnh nh : Ecoli, Samonella, clostridium
putrificusTrong quy trnh ch bin, nu khng m
bo c vn v trng, cc mn n ny rt d
b nhim bn, nhim khun do nhiu ngun khcnhau: bn tay ngi sn xut, dng c sn xutkhng m bo v sinh, cc loi l khng c
ra sch nn d tr thnh mt trong nhngnguyn nhn lm ly truyn nhng bnh truynnhim ng tiu ha trong c bnh tiu chy
cp nguy him.
-
7/28/2019 Cong Nghe San Xuat Nem Chua
23/23
Cm n s lng nghe ca c
v cc bn!!!