| 摘要 |
The purple membrane preparations have a diffraction efficiency of greater than 2% and a rise time of the holographic diffraction efficiency of less than 5 sec and a resolution of greater than 1500 lines/mm. The purple membrane preparations are obtainable by adjusting a purple membrane suspension having a photocycle time of at least 10 ms to a pH between 6 and 11 by means of a buffer, adding from 1 to 10% of a proton donor to this purple membrane suspension, and drying the resultant suspension to a water content of from 1 to 30%. |
