Step 1: Understanding the Concept:
Ghee (clarified butterfat) consists of over 95% milk fat and is highly susceptible to oxidative rancidity.
Its packaging must provide an effective barrier against light, oxygen, and moisture to prevent lipid oxidation and preserve shelf life.
Step 2: Detailed Explanation:
Lipid oxidation in ghee is accelerated by exposure to ultraviolet/visible light and atmospheric oxygen.
Lacquered tin cans (Option A) provide an absolute barrier to light, oxygen, and moisture, making them the standard choice for long-term storage of ghee.
Food-grade PVC (Option C) and aluminum foil laminates (Option D) also provide good barrier properties and are commonly used for retail packaging.
Polyester-coated cellophane (Option B), however, is a transparent material with high light transmission and relatively high oxygen permeability compared to metal or specialized laminates.
Because it fails to protect the high-fat product from light-induced and oxidative rancidity, it is not used to package ghee.
Step 3: Final Answer:
Because of its high permeability to light and oxygen, polyester-coated cellophane is generally not used for packaging ghee.