Keratinase
Quantity : 5000Ton Price : $1-$50/KG
Protease catalyzes peptide bond and hydrolyzes protein into peptone, hydrazone, polypeptide and amino acid. As a kind of alkaline serine protease, keratinase enzyme not only has the function of normal alkaline protease, but also can break down disulfide bond and disintegrate keratin.
Specification of keratinase products
Name |
Product Series Name |
NutriGen Keratinase |
|
Activity |
100000-200000 U/g |
||
Strain |
Parengyodontium album |
EC code |
EC 3.4.99.11 |
Form |
Powder,Liquid |
Carrier |
Starch |
Color |
White, Light yellow |
Loss on drying |
≤ 10% |
Working pH |
6.0-12.5 |
Optimum pH |
11 |
Working T |
30℃-70℃ |
Optimum T |
60℃ |
Particle size |
80% pass 40 mesh |
||
Package |
25kg /bag |
||
Storage |
Stored 6 months in dark, cool and dry conditions |
||
Caution |
Avoid direct sunlight, high temperature |
Definition and Dosage of Activity Keratinase
One unit (U) of protease activity is defined as the amount of enzyme china which liberates 1 μg tyrosine per minute from substrate casein at 40℃ and pH 10.5 under the conditions of the test.
Recommended dosage is 50-100g/t with 50000 U/g in complete feed.
Functions of Keratinase
1. Supplement the deficiency of endogenous protease for animal.
2. Increase the digestibility of protein and amino acid in poultry and swine feed ingredients.
3. Degrade the trysin inhibitor and lectin, this is what endogenous protease can't do.
4. Optimized the use of lower digestibility feed ingredient e.g corn, sorghum, feather meal,soybean meal and blood plasma powder.
5. Creat a better environment for animal and decrease pollution from nitrogen for human.
Application of Keratinase
1. The matrix value of keratinase (100g/t)
Nutrient |
Poultry |
|
Value |
Amount provided in the diet |
|
Metabolizable energy(Mcal/kg) |
600 |
0.060 |
Crude protein, % |
5400 |
0.540 |
Lysine, % |
150 |
0.015 |
Methionine, % |
180 |
0.018 |
Cystine, % |
150 |
0.015 |
Threonine, % |
210 |
0.021 |
Tryptophane, % |
90 |
0.009 |
Isoleucine , % |
150 |
0.015 |
Arginine, % |
285 |
0.0285 |
Valine, % |
255 |
0.0255 |
2. Application case: Improve the performance and digestibility of nutrients.
Experimental animal: 840 one-day-old AA broilers, 6×35 broilers/treatment.
Experimental design:
Table1. Experimental design
Item |
Diet |
PC |
Basal diet |
NC |
Basal diet-0.5% crude protein |
Group I |
NC+125g/t competitor |
Group II |
NC+100g/t Keratinase(30000U/g) |
Experimental cycle: 42 days
Results:
Table2 Effect of each treatment on the growth performance of AA broilers (g, %)
Items |
PC |
NC |
Group I |
Group II |
Initial weight,g |
62.79±0.31 |
62.58±0.29 |
62.56±0.33 |
62.33±0.27 |
1-21days |
||||
21stAG,g |
986.16ab±10.08 |
977.41b±8.22 |
1013.59ab±25.72 |
997.17ab±10.53 |
ADFI,g |
62.08± 1.43 |
60.93±1.10 |
62.09±2.04 |
58.71±2.12 |
ADG,g |
43.94±0.47 |
43.45±0.39 |
45.12±1.29 |
44.33±0.53 |
F/G |
1.41±0.03 |
1.40±0.03 |
1.38±0.05 |
1.33±0.04 |
Death rate,% |
1.43±1.57 |
3.45±2.21 |
5.38±6.24 |
3.33±5.24 |
22-42days |
||||
22ndAG,g |
1140.08±1.30 |
1135.33±5.97 |
1136.73±7.06 |
1138.33±5.41 |
42ndAG,g |
2985.77±41.56 |
2971.06±47.61 |
3058.21±58.29 |
3010.25±44.17 |
ADFI,g |
179.00±3.12 |
178.64±2.86 |
175.81±3.64 |
174.22±2.64 |
ADG,g |
87.88±2.01 |
87.42±2.43 |
91.50±2.85 |
89.14±2.20 |
F/G |
2.04±0.07 |
2.05±0.03 |
1.93±0.05 |
1.96±0.06 |
Death rate,% |
2.00±2.19 |
1.33±2.07 |
0.67±1.63 |
1.33±2.07 |
1-42days |
||||
ADFI,g |
120.51±2.39 |
119.78±1.63 |
118.94±2.01 |
116.47±1.60 |
ADG,g |
69.59±0.98 |
69.25±1.13 |
71.32±1.39 |
70.18±1.05 |
F/G |
1.73±0.02 |
1.73±0.02 |
1.67±0.02 |
1.66±0.03 |
Death rate,% |
3.43±3.76 |
4.78±1.73 |
6.05±5.74 |
4.67±4.59 |
Note: In the same row, values with different small letter superscripts mean significant difference(P<0.05).</span>
Diagram1 Effect of keratinase on the nutrient digestibility of broilers
Table3 Effect of keratinase on the amino acid digestibility of broilers (%)
Items |
PC |
NC |
Group I |
Group II |
Asp |
55.87±4.44 |
52.59±2.57 |
54.52±8.03 |
57.52±5.76 |
Thr |
63.09±7.47 |
61.47±5.32 |
62.17±5.74 |
63.69±5.19 |
Ser |
69.11±5.51 |
65.44±4.61 |
65.80±7.04 |
68.04±4.10 |
Glu |
69.31±3.41ab |
64.68±1.35b |
67.12±5.82 |
74.82±3.39a |
Gly |
55.36±15.14ab |
42.03±4.21b |
49.11±11.59b |
67.00±1.89a |
Ala |
31.82±2.11b |
34.51±4.37b |
35.35±5.19 |
35.92±4.82b |
Val |
46.32±0.75 |
45.59±1.66 |
44.68±4.68 |
50.18±3.73 |
Met |
72.53±1.35 |
70.69±2.65 |
75.17±3.79 |
74.29±3.31 |
Ile |
46.45±0.53b |
47.40±2.87ab |
47.47±5.60 |
51.65±4.65ab |
Leu |
56.28±1.57 |
52.87±7.19 |
55.44±8.01 |
53.05±4.90 |
Tyr |
50.93±3.67 |
47.91±4.34 |
50.94±10.97 |
56.55±8.06 |
Phe |
66.11±2.37 |
61.58±1.25 |
62.81±7.79 |
68.80±6.93 |
His |
31.90±4.72ab |
25.09±7.33b |
28.06±14.13 |
40.79±5.43< |
Contact : Xi Julia, 86 531 55772899
Good deal: buying from seller
We invite you to read our terms of use. You can also visit our FAQ section and see our information section on the risks associated with counterfeiting.
This page is about importers and exporters of Keratinase Search in a category : Everything else / Bulk Search in a category : keratinase |
Thursday, May 02, 2024
Quantity : disponibil
We have clothing stocks of different brands of Inditex Group (Zara, Bershka, Stradivarius, Pull & Bear, Massimo Dutti ... ) for selling in Asian and African countries where there are no sales restrictions. Minimum order is depending on destination country. If you have any interest...
Top Brands Stock s.c.p.
- 08021 - Barcelona
- +34 6 39 19 72 27
Thursday, September 18, 2014
Price : A DISCUTE
Please visit our site: frenchstarsentreprises.fr We are a company of import-export based in the South of the France in Montpellier, we offer you different products food with wholesale prices and semi-wholesale.We select the best qualities of products to offer to our customers on...
FRENCH STARS ENTREPRISES
- 34080 - MONTPELLIER
- (+33)0605836289
- +33 6 05 83 62 89
Sunday, October 06, 2013
Quantity : 1 set - Price : USD125,000
Product parameters: Parameters EW4700-S12-P10 (Complete Vehicle) Chassis Brand Foton Aumak External 8310mm x 2175mm x 3750mm Power Cummins Curb weight 3700KGS Emission standards Euro IV Total Weight 14495KGS Seat One and half row A 1995 Wheelbase 4700mm Hydraulic Lifting...
Shanghai Jingxiang Advertisement Communication Co.,Ltd
- Lillian123
- 201900021 - Shanghai
- 008618001970686