Fully grown green chillies (C. annuum L.) of the same size and
maturity were obtained from the local market of Mysore, and were
washed with sodium hypochlorite solution (100 mg/kg) for 10 min
followed by surface moisture removal by keeping the chillies in a
stream of dehumidified air, and then were used further for coating
application. The shellac coatings were prepared by dissolving
dewaxed and bleached shellac (5%) in alkaline aqueous medium
(0.6% ammonia) at 95 ◦C. To this, PVA (binding and coating agent)
(3%), previously dissolved in hot water, was added along with
triethanolamine (surfactant) (1%), and 0.1% oleic acid (lubricant,
binder, and defoaming agent).