12 Industrial Extraction of Microalgal Pigments
287
Table 12.3
(continued)
Study
Species
Biomass state
Pretreatment and cell
rupture
Extraction solvents and
conditions
Maximum
yield/recovery at
optimum conditions
Key findings
Zhao et al. (2009) H. pluvialis
Powder
n/a
Microwave-assisted
solvent extraction with
a mixture of ethanol
and ethyl acetate (2:1
v/v)
594
μg
astaxanthin/100 mg
biomass at 141 W,
83 s, 9.8 ml/200 mg
biomass and 4
extraction cycles
Microwave-assisted
extraction increased
astaxanthin yield and
dramatically reduced
extraction time
The extracts obtained
from
microwave-assisted
extraction exhibited
strong antioxidant
activities, strong
radical scavenging
properties against
DPPH and strong
reducing power
(continued)