Seed Types and Oil
Other types of pumpkin seed oil are also marketed worldwide. International producers use white seeds with shells and this produces a cheaper white oil. New producers of seeds are located in China and India.
An analysis of the oil extracted from the seeds of each of twelve cultivars of C. maxima yielded the following ranges for the percentage of several fatty acids:
| n:unsat | Fatty acid name | Percentage range |
|---|---|---|
| (14:0) | Myristic acid | 0.09-0.27 |
| (16:0) | Palmitic acid | 12.6-18.4 |
| (16:1) | Palmitoleic acid | 0.12-0.52 |
| (18:0) | Stearic acid | 5.1-8.5 |
| (18:1) | Oleic acid | 17.0-39.5 |
| (18:2) | Linoleic acid | 18.1-62.8 |
| (18:3) | Linolenic acid | 0.34-0.82 |
| (20:0) | Arachidic acid | 0.26-1.12 |
| (20:1) | Gadoleic acid | 0-0.17 |
| (22:0) | Behenic acid | 0.12-0.58 |
The study did not distinguish between positional isomers (e.g. ω-3 versus ω-6 linolenic acid). The sum of myristic and palmitic acid (cholesterogenic saturated fatty acids) content ranged from 12.8 to 18.7%. The total unsaturated acid content ranged from 73.1 to 80.5%. The very long chain fatty acid (> 18 carbon atoms) content ranged from 0.44 to 1.37%.
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