HOW TO FIND CRUDE FIBRE IN FOOD PRODUCT REAGENTS 1. Dilute sulphuric acid - 1.25 % m/v, accurately prepared 2. Sodium hydroxide solution - 1.25 % m/v. accurately prepared APPARATUS 1. Electric air Oven 2. Thimble 3. Soxhlet apparatus 4. Reflux condenser 5. Gooch crucible 6. Muffle furnace PROCEDURE 1. Dry to constant mass about 5 g of the material in an electric air oven at 105 to 110 deg C. Weigh accurately about 2.5 g of the dried material into a thimble and extract for about one hour with petroleum ethe...
Food Safety & Management