Question

Which type of ghee has more number of larger grains under given granulation conditions?

• A. Cow milk ghee
• B. Buffalo milk ghee
• C. Mixed ghee
• D. Recombined milk ghee

Hint:

Slow cooling at a temperature about $1-2^{\circ}$C above the melting point of the fat promotes the formation of large, bold grains in ghee.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
Granulation is a desirable physical characteristic of ghee, often used by consumers as an indicator of purity and quality. It refers to the formation of solid fat crystals (grains) suspended in a liquid fat medium. This process is influenced by the fatty acid composition, the rate of cooling, and the storage temperature.

Step 2: Detailed Explanation:
Buffalo milk ghee is known to produce larger and more numerous grains compared to cow milk ghee. This phenomenon is primarily attributed to the higher proportion of high-melting-point triglycerides present in buffalo milk fat. Buffalo fat contains a higher percentage of saturated fatty acids like palmitic and stearic acids, which crystallize more readily during the cooling process.
Additionally, the size of the grains depends on the rate of cooling; slow cooling allows for the growth of larger crystals, whereas rapid cooling leads to many small crystals or a smooth texture. Under identical "given granulation conditions," the chemical nature of buffalo fat naturally favors the formation of bigger crystal aggregates. Cow milk ghee, having more low-melting-point fatty acids and a higher carotenoid content, tends to have smaller, softer grains. Mixed ghee or recombined milk ghee will have intermediate or irregular granulation patterns depending on the ratio and processing history. Therefore, for the specific attribute of large, prominent grains, buffalo milk ghee is superior.

Step 3: Final Answer:
Buffalo milk ghee has more number of larger grains under given granulation conditions.