Milk Products: Kulfi, Ice Cream, and Preparation Methods

Delve into the world of milk products with a detailed look at Kulfi and Ice Cream, their compositions, preparation methods, and common defects. Learn about the ingredients, freezing techniques, and the importance of stabilizers and emulsifiers in achieving the perfect texture. Discover the process of making these delightful frozen treats and how to overcome potential issues for a rewarding dessert experience.

• Milk Products
• Kulfi
• Ice Cream
• Preparation Methods
• Stabilizers

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1. Milk Products (part-8) By- Dr. SUSHMA KUMARI ASST.PROF., DEPT.OF LPT, BVC, PATNA

2. Kulfi It is Indigenous frozen milk product. Composition of kulfi- Fat-7-8% SNF- 37 % Method off preparation- Milk Boiling Addition of sugar (2:1) Cooling Addition of cream, nuts, flavours Filling in conical/ triangular mould Frozen( earthen vessel with mixture of ice: salt::1:1)

3. KULFI KULFI CONE

4. Ice cream Ice cream is a frozen milk product made by freezing a pasteurized ice cream mix with agitation to incorporate air. Composition of Ice cream mix- Milk/milk powder +sugar + dextrose+ corn syrup+ water + flavour + stabilizer (0.3-0.5%) + emulsifier (0.3-0.5%) Composition of Ice-cream- Fat (12-20%) ,SNF (8-15%), Sugar ( 13-20%). Stabilizer-used to prevent large ice crystal formation. Common stabilizers used in ice cream, such as guar gum, carob bean gum and cellulose gum, function to reduce the degree of ice crystal growth by influencing viscosity and other rheological properties, thus limiting the mobility of water in the unfrozen aqueous portion. Emulisifier- used to improve whipping quality o mix. Emulsifiers commonly used in ice cream include mono-diglycerides (E471), lactic acid esters (E472b), propylene glycol esters (E477) and blends of these.

5. ICE CREAM

6. Method of preparation of ice cream- Ice cream mix Pasteurization Homogenization ( 1ststage 2500psi, Cooling the mix (below 5 C) Aging the mix ( at 5 C for 3-4 hrs) Freezing the mix (-4 C for 7 min) Packaging of ice cream Hardening and storage of ice cream (-23 C to -29 C) 2ndstage 500 psi)

7. Over run is defined as the volume of ice cream obtained in excess of the volume of the mix . It is usually expressed as percent overrun. % over run = --------------------------------------------- vol of mix vol of ice cream- vol of mix Defects of ice cream- Sour flavour, rancid flavour, sandy texture, Slow melting (excess stabilizer), foamy melt down(excess emulsifier, excess overrun).

8. THANKS