Chemistry Reference
In-Depth Information
(a) Trypsin
(b) Glu-specific
1.40
1.60
1.00
1.00
1.40
1.20
1.20
0.80
0.80
1.00
1.00
0.80
0.60
0.60
0.80
0.60
0.60
0.40
0.40
0.40
0.40
0.20
0.20
0.20
0.20
Mz
Mu Mn
Mz
Mu
Mn
0.00
0.00
6.00
5.00 4.00
Log molecular weight
3.00
2.00
6.00
5.00
4.00
3.00
2.00
(c) Aspartic protease
(d) Esperase
1.60
1.60
1.00
1.00
1.40
1.40
0.80
1.20
0.80
1.20
1.00
1.00
0.60
0.60
0.80
0.80
0.40
0.40
0.60
0.60
0.40
0.40
0.20
0.20
0.20
0.20
Mz
Mn
Mu
Mn
Mu
Mz
0.00
0.00
6.00
5.00
4.00
3.00
2.00
6.00
5.00
4.00
3.00
2.00
Fig. 13.3
Molecular weight distributions for whey protein hydrolyzates with DH 4% produced by differ-
ent proteases. (a) Trypsin from pig pancreas, (b) glutamic acid-specific protease from Bacillus, (c) aspartic
protease from M. miehei and (d) alkaline serien protease from Bacillus (Esperase
R
). (Nielsen unpublished
data).
Trypsin DH 8%
8.00
1.00
0.80
6.00
0.60
4.00
0.40
2.00
0.20
Mu
Mz
Mn
0.00
6.00
5.00
4.00
3.00
2.00
Log molecular weight
Fig. 13.4
Molecular weight distributions for whey protein hydrolyzates with DH 8% produced by trypsin.
(Nielsen unpublished data).
