Explanation of Biodiesel from crude algae oil results:

• The ester content achieved was quite high and well within specs.  

• The Linolenic acid methyl ester perfectly meets EN standard.

• The copper corrosion meets standards

• The iodine value is the same as for the algae oil that was used as feedstock, as expected  

• Free and total glycerol are within specs.

• Monoglycerides, diglycerides and triglycerides are within specs.

• Oxidation stability is low as expected for an oil that is rich in Omega 3 and Omega 6 oils, however, there are on the market additives that can improve this parameter to meet standards.  TBHQ (tertiary butyl hydroquinone) can be added at the ratio of 0.02% to raise the stability to meet the EN standard, citric acid can also be used to increase oxidation stability. It is also possible to blend antioxidants with quelating agents to improve the oxidation stability (ex.: 0.0075% of BHA + 0.0075% of PG + 0.0045% citric acid).