1. Qingdao Institute of Bioenergy and Bioprocess Technology; Chinese Academy of Sciences; Songling Road 189 Qingdao 266101 P.R. China
2. Department of Polymer Science and Engineering; Qingdao University of Science and Technology; Zhengzhou Road 53 Qingdao 266042 P.R. China
3. ETH Zurich, Food and Soft Materials; Department of Health Science & Technology; Schmelzbergstrasse 9, LFO, E23 8092 Zürich Switzerland