Environmental Engineering Reference
In-Depth Information
PEDIASTRUM DUPLEX MEYEN, 1829
Phylum: Chlorophyta Class: Chlorophyceae
Order: Sphaeropleales Family: Hydrodictyaceae
Distribution: Europe, North America, South America, Asia, Southeast Asia,
Australia, New Zealand, Paciic Islands, Caribbean Islands
Habitat: Freshwater habitats
Description: This species forms nonmotile coenobia (colonies) of a varied
number of cells, from 5 to 130. The cells are lat and circular shaped. The
cell bodies are polygonal and are granulated with horn-like projections.
The reproduction is by asexual methods, i.e., by producing autocolonies.
Compounds and activities: All termamyl (carbohydrase) and kojizyme (prote-
ase) digests of this species showed signiicant 1,1-diphenyl-2-picrylhydrazyl
(DPPH) scavenging effects and both no scavenging and metal chelating.
Termamyl (60.6%) digest of this species possessed the highest effects on
hydrogen peroxide scavenging. Lipid peroxidation was signiicantly inhib-
ited in viscozyme. The water-soluble antioxidants of this species may be
applied in pharmaceutical industries in the production of novel drugs (Lee
et al., 2009).
SPONGIOCHLORIS SPONGIOSA (VISCHER) STARR, 1955
Phylum: Chlorophyta
Class: Chlorophyceae
Order: Chlorococcales
Family: Chlorococcaceae
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