Extraction of β-Carotene from Spirulina Using Ethanol and Acetone-Ammonium Sulphate Aqueous Two-Phase System
ZHANG Xi-feng1, YANG Sheng-hui2, LUO Guang-hong2*, WANG Dan-xia2
NATURAL PRODUCT RESEARCH AND DEVELOPMENT . 2015, (3): 393 -397 .  DOI: 10.16333/j.1001-6880.2015.03.005