Our students test dilute casein solution with Benedict’s reagent, Biuret test etc as part of a ‘carbohydrates and proteins in foods’ prac.
Food Sample recipes from STAWA Human Biology Laboratory Manual exercise 19 (undated):
- Sample A = laundry starch or starch powder + gelatin powder + washed white sand.
- Sample B = glucose powder + laundry starch or starch powder + washed white sand.
- Sample C = glucose powder + laundry starch or starch powder + gelatin powder + washed white sand.
- Sample D = glucose powder + gelatin powder + washed white sand + finely grated cheese or parmesan cheese.
- Milk powder for food tests
- Casein from supplement stores? Find it easily at any store that sells protein powder or online, it is a slow release protein: https://www.bulknutrients.com.au/products/micellar-casein-protein?gclid=Cj0KCQiAgK2qBhCHARIsAGACuzkFiiZbPOalxdgPm04s3CZePc5gs3BQzYgH2Q_4fECMWK3RJC4tciEaAhQQEALw_wcB
- Protein powder from Coles – dissolves easily in water