1. Department of Chemical Engineering and R&D Center for Membrane Technology; Chung Yuan Christian University; 200 Chung Pei Road Chung-Li City 32023 Taiwan
2. Department of Botany and Microbiology; College of Science; King Saud University; P. O. Box 2455 Riyadh 11451 Saudi Arabia
3. Department of Chemical and Materials Engineering; National Central University; Jhong-Li Taoyuan 320 Taiwan