Abstract
Fruit peels are domineering constituents of agro industrial leftover encumbered into the environment. Six bacterial isolates (Bacillus amyloliquefaciens, B. horikoshii, B. safensis, B. nealsonii, B. megaterium and B. licheniformis) were grown in 2% dried watermelon, mango, apple, sugar cane bagasse, potato and banana peels to check their comparative growth potential. Growth evaluation through OD600 sign posts that all the Bacillus species have potential to grow on all these agro- wastes, whereas, the highest growth was observed on watermelon. Based upon higher growth yields as well as the substrates’ aptitudes, watermelon peels and B. megaterium were optimized at pH 7,
27ºC under aerated conditions. Multiple metal and antibiotic resistances were found for select B. megaterium. Results show that environmental burden can be reduced by the use of agricultural byproduct/waste as a substrate for scale up biomass production of commercially important bacterial species for a variety of value added products.
Hafiz Abdullah Shakir and Javed Iqbal Qazi*, Nafeesa Batool. (2015) Comparative growth potential of different Bacillus species on fruit peels, Punjab University Journal of Zoology, Volume 30, Issue 1.
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