11. They are colorless solids, soluble in methanol, ethyl acetate, and butanol . 12. A butanol permeable membrane is placed in between the fermentation broth and extractant solvents. 13. Substitution of ethanol with " tert "-butanol resulted in no product. 14. This improvement compares to the 7.6 g butanol produced by the native bacteria. 15. Many organisms have the capacity to produce butanol utilizing an acetyl-CoA dependent pathway. 16. Butanol has been demonstrated to work in vehicles designed for use with gasoline without modification.17. Butyraldehyde can be produced by the catalytic dehydrogenation of " n "-butanol . 18. "n "-Butanol is of low toxicity to aquatic vertebrates and invertebrates. 19. Products include alcohols ( such as ethanol and butanol ) and other hydrocarbons for transportation use. 20. The green waste left over from the algae oil extraction can be used to produce butanol .
