Walnut oil is extracted from Persian walnuts (Juglans regia). Every 100 g of this oil contains approximately 63.3 g of polyunsaturated fatty acids, 22.8 g of monounsaturated fats, and 9.1 g of saturated fats, with no cholesterol. Unlike most nuts, which are rich in monounsaturated fatty acids, walnut oil is predominantly composed of polyunsaturated fatty acids (72% of total fats), including 14% alpha-linolenic acid and 58% linoleic acid, along with 13% oleic acid.
Walnut Oil
Physical and Chemical Properties:
- Density (25°C): 0.921-0.925
- Acid Value: Max. 0.4
- Saponification Value: 188-196
- Iodine Value: 138-162
- Refractive Index (40°C): 1.475-1.480
Fatty Acid Composition:
- Palmitic Acid (C16): 6-9%
- Oleic Acid (C18:1): 13-20%
- Linoleic Acid (C18:2): 55-65%
- Alpha-Linolenic Acid (C18:3): 10-16%
- Stearic Acid (C18): 2-4%
- Others: Max. 2%
Typical Fatty Acid Breakdown:
- Palmitic Acid (C16:0): 5-8%
- Palmitoleic Acid (C16:1): Max. 0.5%
- Stearic Acid (C18:0): 1-5%
- Oleic Acid (C18:1): 14-26%
- Linoleic Acid (C18:2): 45-65%
- Alpha-Linolenic Acid (C18:3): 9-15%
- Icosanoic Acid (C20:0): Max. 1.0%
- Icosenoic Acid (C20:1): Max. 0.5%
- Docosanoic Acid (C22:0): Max. 0.5%
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