Q1. Identify the different types of cream manufactured in dairy plants. Describe the common defects that may develop in cream during storage, along with their possible causes.
- Cream types vary by fat content and use, including Table (18-30% fat), Whipping (>30-40% fat), Sour (18-20% fermented), and Plastic (60-80% concentrated).
- Acid/Sour flavor in cream is caused by lactic acid bacteria due to poor cooling or sanitation, fermenting lactose into lactic acid.
- Rancid flavor results from lipase enzyme activity hydrolyzing milk fat into free fatty acids, producing a pungent, goaty taste.
- Oxidized/Tallowy flavor is due to the oxidation of unsaturated fatty acids, accelerated by light, oxygen, or metals, giving a metallic taste.
Answer: Dairy plants manufacture various types of cream, each distinguished by its fat content, processing, and intended use. The quality of these creams is paramount, and several defects can arise during storage, significantly impacting their sensory attributes and shelf life. **Types of Cream Manufactured in Dairy Plants** Cream is essentially an emulsion of milk fat in skim milk plasma, separated from whole milk. The diverse range of cream types caters to different culinary and industrial applicat...