专题二

Size: px

Start display at page:

Download "专题二"

家起尚
9 years ago
Views:

1 / JiaGang Page 1

2 5. P32 6. P34 36 ( ) 4 30~70 1. / ~ JiaGang Page 2

3 DL- 33g/L20 9.4% 2.2 L g/l20 4. UA NH 2 CONH 2 2NH 3 +CO 2 ph30ph l 1~5 5~15 15~30 JiaGang Page 3

4 Weende GB/T NH 2 (CH 2 )COOH+13H 2 O ( NH 4 ) 2 SO 4 +6CO 2 +12SO 2 +16H 2 O (NH 4 )2SO 4 +2NaOH 2NH 3 +2H 2 O+Na 2 SO 4 4H 3 BO 3 +NH 3 NH 4 HB 4 O 7 +5H 2 O NH 4 HB 4 O 7 +HCl+5H 2 O NH 4 Cl+4H 3 BO 3 JiaGang Page 4

5 2. 1 Soxhlet 2 a) b) GB/T GB/T NFE%=100%-%+%+%+%+ % JiaGang Page 5

6 255atm(Kg/cm2) H =[TW+W+C-Q]/m H (cal/g) T (); W (g) W (g) C (J/) Q (cal) m (g) T DE=GE-FE ME=GE-FE-UE Van Soest ()Van Soest NDS JiaGang Page 6

7 1. HPLCAA 2. DNS PITC OPA 9-FMOC 1 ~ ~ JiaGang Page 7

8 NH PO 4 NH + 4 VO 3 16MoO 3 420nm ~ ~ 3 GB/T P AASGB/T P164~165 JiaGang Page 8

9 P HPLC 2. 1A 2A A A 26BHT JiaGang Page 9

10 4HPLCHPLCGC-MS CV 3. CV GB g 10min %= / 100% CV X 1 JiaGang Page 10

11 %= A/500*100 A mm) (GB/T ) Determination of digestibility in animal protein feeds Pepsin method % JiaGang Page 11

12 Diffuse reflectance for a ground solid showing: (a) reflection from the cell cover; (b) specular reflection from the sample; (c) absorption and diffuse reflection from the sample; (d) total absorption by the sample Conclusions While there is still the need for research on NIRS and the limits to its use, it is a useful technique. At present, NIRS works best on dried materials and requires constant checking to maintain the accuracy of calibration equations. JiaGang Page 12

13 Many questions still remain to be answered. there will be a steady increase in the demand for instrumental methods of analysis, such as NIRS y=a+bx, JiaGang Page 13

14 1 GE 3 ME JiaGang Page 14

15 GB/T Method for sampling of feed 2 GB JiaGang Page 15

16 GB/T Method for the determination of crude protein in feedstuffs GB/T JiaGang Page 16

17 ~ ~ ~ ~ JiaGang Page 17

18 ~ ~ ~ ~ ~ JiaGang Page 18

19 1 2g JiaGang Page 19

20 GB/T Method for the determination of crude ash in feedstuffs GB m 2 -m 0 %= *100 JiaGang Page 20

21 m 0 m 1 m 1 -m 0 m 2 8 5% 1% 5% 5% ~20ml 100ml 2 10ml 6~8 10ml 50ml 75~80 JiaGang Page 21

22 1~5% GB/T Method for the determination of phosphorus in feedstuffs GB Photometric method 1 0~20ug/ml 2 3 NH 4 3 PO 4 NH 4 VO 3.16M O O 3 420nm P%=(X MV)100 Mg; Xug; V,ml; JiaGang Page 22

23 9 0.5% 10% 0.5% 3% Determination for formula feed particle size / g 2 100g 10min %=/*100 GB Determination for mixing homogeneity of formula feed JiaGang Page 23

24 g 100g 500g g 100ml 30ml30min 5mm 590nm(X I ) X =X 1 +X 2 +X 3 + +X 10 /10 S = JiaGang Page 24

25 GB Determination for mixing homogeneity of mineral premix X =X 1 +X 2 +X 3 + +X 10 /10 S = JiaGang Page 25

26 GB/T Determination of available lysine in feedstuffs ISO GB JiaGang Page 26

27 9.1 W 1 %= A10-6 Ang M 1 mg D 9.2 W 2 %= A10-6 M 2 mg 9.3 W= W 1 W % GB/T Method for the determination of water-soluble chloride in feedstuffs 1 0~60mg 2 GB 1.4 GB JiaGang Page 27

28 8 (V 1 -V 2 Cl (%) = m mg V 1 ml V 2 ml F C mol/l JiaGang Page 28

29 JiaGang Page 29

30 JiaGang Page 30

31 ~ ~ ~ ~ ~ ~ Mj/Kg Kcal/ Kg JiaGang Page 31

32 ~ ~ JiaGang Page 32

33 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ Mj/Kg Kcal/ Kg JiaGang Page 33

34 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ JiaGang Page 34

<4D6963726F736F667420576F7264202D203231D3A4D3D7B6F9CAB3C6B7BACDC8E9C6B7D6D0D6ACB7BEB5C4B2E2B6A82E646F63>

<4D6963726F736F667420576F7264202D203231D3A4D3D7B6F9CAB3C6B7BACDC8E9C6B7D6D0D6ACB7BEB5C4B2E2B6A82E646F63> 中华人民共和国国家标准 GB 5413.3 2010 食品安全国家标准婴幼儿食品和乳品中脂肪的测定 National food safety standard Determination of fat in foods for infants and young children, milk and milk products 2010-03-26