11. Natural unsaturation also increases with increase in partial pressure of oxygen in the breathing gas. 12. The amount of unsaturation of a fatty acid can be determined by finding its iodine number. 13. Complexes with high coordinative unsaturation display high reactivity so long as they do not undergo intramolecular reactions. 14. An additional deprotonation by a alpha-beta unsaturation and pushing a lone pair onto the aldimine nitrogen. 15. This includes more than one compound because the composition of the side chain varies in its degree of unsaturation . 16. The modifications to their bacteria fermenters will allow the alteration of chain length, branch points and saturation / unsaturation . 17. Aside from chain length, transition temperature can also be affected by the degree of unsaturation of the lipid tails. 18. Oxygen and other divalent atoms do not contribute to the degree of unsaturation , as 2 " 2 = 0. 19. This saturation deficit is also referred to as inherent unsaturation , the " Oxygen window " . or partial pressure vacancy. 20. Unsaturation can be determined by NMR, mass spectrometry and IR spectroscopy, or by determining a compound's bromine number.