C. versicolorMTCC138was obtained fromMicrobial Type Culture
Collection, Institute ofMicrobial Technology, Chandigarh, India. The
strain was maintained on potato dextrose agar (PDA) medium and
was subcultured at regular intervals. Groundnut shellwas collected
from local market. Water bloom was collected from river Ganges,
Varanasi, India in summer season. Cyanobacterial water bloom
sample showed typical morphological characteristics of Microcystis
sp. under amicroscope. Cyanobacterial biomass (CB)was harvested
by centrifugation (13,000×g, 10min). Dryweight of cyanobacterial
water bloom was determined by drying at 80 ◦C until a constant