1.1.1.216 6 9 reduction of trans,trans-farnesal: 60% of maximal activity at pH 6.5 and at pH 8 347993 1.1.1.216 7 10.5 oxidation of trans,trans-farnesol: 10% of maximal activity at pH 7.0, 30% of maximal activity at pH 10.2 347993 1.1.1.216 7.5 11 activity range, profile overview. At below pH 8.5 or above pH 10.0, the enzyme activity declines sharply 741249