Eicosapentaenoic acid-producing microorganisms, fatty acid compositions, and methods of making and uses thereof

1. A microbial oil comprising omega-3 polyunsaturated fatty acids comprising docosahexaenoic acid and eicosapentaenoic acid in an amount of about ≧90%, by weight, of the total amount of omega-3 polyunsaturated fatty acids, wherein the amount of eicosapentaenoic acid, by weight, is from about 19% to about 55% of the total amount of docosahexaenoic acid and eicosapentaenoic acid, and the amount of docosahexaenoic acid, by weight, is from about 35% to about 71% of the total amount of docosahexaenoic acid and eicosapentaenoic acid, wherein the total amount of omega-3 polyunsaturated fatty acids is at least about 400 mg per one gram of oil.

2. The oil of claim 1 , wherein the amount of eicosapentaenoic acid, by weight, is from about 19% to about 43% of the total amount of docosahexaenoic acid and eicosapentaenoic acid, and the amount of docosahexaenoic acid, by weight, is from about 35% to about 47% of the total amount of docosahexaenoic acid and eicosapentaenoic acid.

3. The oil of claim 1 , wherein the amount of eicosapentaenoic acid, by weight, is from about 27% to about 54% of the total amount of docosahexaenoic acid and eicosapentaenoic acid, and the amount of docosahexaenoic acid, by weight, is from about 36% to about 63% of the total amount of docosahexaenoic acid and eicosapentaenoic acid.

4. The oil of claim 1 , wherein the amount of eicosapentaenoic acid, by weight, is from about 26% to about 38% of the total amount of docosahexacnoic acid and eicosapentaenoic acid, and the amount of docosahexaenoic acid, by weight, is from about 52% to about 64% of the total amount of docosahexaenoic acid and eicosapentaenoic acid.

5. The oil of claim 1 , wherein the amount of eicosapentaenoic acid, by weight, is from about 28% to about 36% of the total amount of docosahexaenoic acid and eicosapentaenoic acid, and the amount of docosahexaenoic acid, by weight, is from about 54% to about 62% of the total amount of docosahexaenoic acid and eicosapentaenoic acid.

6. The oil of claim 1 , wherein said oil is produced by Schizochytrium sp.

7. The oil of claim 1 , wherein said oil comprises less that about 5% by weight of each of arachidonic acid, docosapentaenoic acid n-6, oleic acid, linoleic acid, linolenic acid, eicosenoic acid, erucic acid and stearidonic acid.

8. The oil of claim 1 , wherein said oil comprises a triacylglycerol fraction of at least about 10% by weight, wherein at least about 12% by weight of the fatty acids in the triacylglycerol fraction is eicosapentaenoic acid, wherein at least about 25% by weight of the fatty acids in the triacylglycerol fraction is docosahexaenoic acid and wherein less that about 5% by weight of the fatty acids in the triacylglycerol fraction is arachidonic acid.

9. The oil of claim 1 , wherein the total amount of docosahexaenoic acid and eicosapentaenoic acid is about 400 mg per one gram of oil.

10. A microbial oil comprising omega-3 polyunsaturated fatty acids comprising docosahexaenoic acid and eicosapentaenoic acid in an amount of about ≧90%, by weight, of the total amount of omega-3 polyunsaturated fatty acids; and docosapentaenoic acid in an amount of from about 0% to about 2%, by weight, of the total amount of omega-3 polyunsaturated fatty acids, wherein the amount of eicosapentaenoic acid, by weight, is from about 10% to about 25% of the total amount of docosahexaenoic acid and eicosapentaenoic acid, the amount of docosahexaenoic acid, by weight, is from about 75% to about 90% of the total amount of docosahexaenoic acid and eicosapentaenoic acid.

11. The oil of claim 10 , wherein said oil comprises from about 55 mg to about 150 mg eicosapentaenoic acid per one gram of oil; from about 410 mg to about 540 mg docosahexaenoic acid per one gram of oil; and from about 0 to about 12 mg docosapentaenoic acid per one gram of oil.

12. The oil of claim 1 or 10 , wherein the total amount of omega-3 polyunsaturated fatty acids is from about 400 mg to about 750 mg per one gram of oil.

13. The oil of claim 1 or 10 , wherein the total amount of omega-3 polyunsaturated fatty acids is at least about 500 mg per one gram of oil.

14. The oil of claim 13 , wherein the total amount of docosahexaenoic acid and eicosapentaenoic acid is about 500 mg per one gram of oil.

15. The oil of claim 1 or 10 , wherein said oil comprises a ratio of EPA:DHA selected from 1:1 to 1:1.5, 1:1 to 1:2, 1:1.5 to 1:2, 1:1 to 1:2,5, 1:2 to 1:2.5, and 1:4 to 1:7 by weight of total omega-3 polyunsaturated fatty acids.

16. An oral dosage form comprising the oil of claim 1 or 10 .

17. An oral dosage form comprising the oil of claim 15 .