scale bar indicates 0.0001 substitutions per nucleotide position ( Fig. 3). The fermentation rate of SSII2 (B. subtilis) strain for the alpha amylase production was investigated in 5 L submerge fermentor. The culture aliquots were withdrawn every 6 h, starting from 12 h aseptically and subjected to enzyme estimation up to 40 h of fermentation period. After submerged Lapatinib fermentation, the maximum activity of amylase was obtained in the enzyme extract harvested after 12 h at pH 7 and 32 °C temperature. During submerged fermentation process the production of amylase reached maximum of 4 U/ml at 10 h of incubation period. The enzyme production reached its maximum enzyme production 2.72 g/L at 12 h. 20 Partial

purification of amylase enzyme by ammonium sulfate precipitation showed maximum protein content of 54.54, which is mg/L up to 80% purification fold. Amylase assay showed maximum extracellular enzyme activity of 538 U/ml. Optimum parameters were identified in submerged fermentation which was carried out in a 5 L fermentor with a working volume of 3.5 L and the maximum protein content was estimated to be 2.72 mg/L. Ammonium sulfate precipitation was performed to partially purify the fermented product and it showed maximum protein content of 54.54 mg/L check details which is about 80%

higher than non purified enzyme. The SSII2 isolate was characterized by 16S rDNA sequencing and found to be B. subtilis. The partially purified protein can be further characterized by SDS-PAGE

analysis and column chromatography. By doing so, a stable amylase with higher enzyme activity can be identified which may have wide industrial applications and high amylase producing potential. All authors have none to declare. The researchers are thankful to the UGC (University Grant commission) for their encouragement and support, F No. 37-300/2009 (SR). “
“Control of population growth is very important in populated countries like India and China, population control is an issue of global and national public health concern. The rise in population may affect drastically the economic growth of the country. India within, few years of time span will be the leading country as far as the population is concerned. Since the population rising tremendously, this may affect drastically on the socio-economic growth of India. So through in order to control population, family planning has been promoted through several methods of synthetic contraception. A verity of synthetic contraceptive agents is available in the market, but these contraceptives having side effects. Thus, there is a need to replace these drugs by safe and effective contraceptive agents such as plant based contraceptive agents. Many of our ancestors used the plants or plants extracts as antifertility agents without any side effects and toxic effects.1 So in resent research there was much attention has been given to screen plant based contraceptive agents.