AN INCREASE IN ETHANOL YIELD BY PHOTOCHEMICAL ANAEROBIC RESPIRATION, USING IRON SUPPLIMENTOR

摘要

The more the carbon-dioxide build-up the more heat is trapped near the earth and thereby, raising the temperatures alarmingly worldwide therefore use of ethanol and increase in its yield from the raw materials is technically feasible, economically viable and environmentally sustainable.Micro organism, gallionello utilises iron compounds to derive energy for its metabolic processes and secrete larged quantity of hydrated iron oxide (fe_2O_3.3H_2O). When the diluted solution of molasses is supplemented with the same iron oxide as supplimentor along with other nutrients like di-sodium hydrogen phosphate and urea, a substantial increase in yield of ethanol is observed because iron oxide combines with the oxalate already present in molasses to form a complex called ferri-oxalate which then dissociates by absorbing energy in the form of visible light. This energy absorbed in addition with 21 K cal energy liberated during anaerobic respiration becomes value addition for yeast to produce more ethanol and the process of anaerobic respiration becomes photo chemical.