Page 138 - Feed Lab

Suguna Management System Ver 1.0 / SOP / FQL / P3 - 03 Page 1 of 1

3. Determination of Leather Meal

(Ammonium Molybdate)

REAGENT:
Ammonium Molybdate Solution : dissolve 5 g of
Ammonium molybdate in 100 ml of distilled water and
pour into 35 ml of concentrated nitric acid.

PROCEDURE
FPick up brown and black test sample particles and
place in Petridis. Add 3-5 drops of ammonium
Picture - 3
molybdate and let it stand for 5- 10 minutes.
(Picture - 1)

Note:
FLeather meal will give no colour change.
(Picture - 2) If sample having mixed with meat cum bone meal /
crushed fish, remove the black and brown particles
FMeat and bone meal gives a greenish yellow colour. and wash with distilled water and admit to hot air oven
(Picture - 3) to remove the moisture. And add to Ammonium
molybdate solution as above said procedure.

Picture - 1 Picture - 2

Prepared by : Approved by :
124 Director - Technical