Studies on Antimicrobial Properties of Vegetable, Fruit & Spice ...

<strong>Studies</strong> on….Suvro Saha et.al.were observed respectively for the methanol and cold water extract of nutmeg shell but the other twoextracts were not found to be effective against the organism.In Fig.6 Effect of extracts on Lactococcus lactis; among the four extracts of orange peel, the zone ofinhibition was observed for hot and cold water extract (28.70mm and 54.86mm respectively); themaximum zone was given by cold water extracts of the orange peel. Except the acetone extract of thestone apple shell, the inhibition zone was observed as 43.18mm, 37.08mm, 47.24mm respectively forthe methanol, hot and cold water extract of the sample. The inhibition zone for the methanol extract ofstone apple was same against K. pneumonia and L. lactis. Among the four extracts of pea peel andcoconut shell, the inhibition zone (30.48mm and 33.78mm) was only seen for methanol extract ofthese two samples. The inhibition zone (18.54mm) was observed only for the cold water extract ofjackfruit peel sample. 29.46mm and 34.54mm inhibition zones are observed respectively for hot andcold water extracts of banana inflorescence peel but no zone of inhibition was seen for other twoextracts of this sample. Among the four extracts of the pumpkin peel, the zones of inhibition weredetected for two extracts i.e. methanol extract (35.56mm) and hot water extract (45.72mm). No zoneof inhibition was produced by the four extracts of the watermelon peel. The inhibition zone by the hotwater extracts of black cardamom peel and methanol extract of nutmeg shell were observed as34.54mm and 27.94mm respectively but inhibition zone was not observed for the remaining extractsof these samples.Fig.7: Effect of extracts on Aspergillus niger; the zone of inhibition of 41.40mm, 23.62mm,21.84mm, 31.24mm, 49.02mm, 29.46mm, 30.48mm, 81.28mm (to note that highest zone of inhibitionwas observed against Aspergillus niger), 39.62mm were observed respectively for methanol andacetone extract of orange, methanol and acetone extract of stone apple, acetone and hot water extractof pea peel, hot water extract of coconut shell, cold water extracts of jackfruit peel and methanolextract of pumpkin peel.In Fig.8 Effect of extracts on Candida albicans; among the four extracts of the orange peel and stoneapple shell, the zone of inhibition were detected as 50.8mm, 54.86mm, 22.86mm, 55.88mm, 37.08mmrespectively for the methanol extract of the orange peel, acetone extract of stone apple shell and peapeel, cold water extract of jackfruit peel and banana inflorescence peel and area of inhibition was notobserved for other extracts of these five samples. The inhibition zone of 22.86mm and 41.40mm wasdetected respectively for methanol and acetone extracts of coconut shell but remaining two extractswere not effective against C.albicans. No zone of inhibition was observed for the pumpkin peelextracts against C. albicans. The inhibition zone of 74.42mm and 35.56mm was detected respectivelyfor acetone and hot water extracts of watermelon peel but remaining two extracts were not effectiveagainst the organism. Except for the acetone extract of black cardamom, the remaining three extractsi.e. methanol extract (45.72mm), hot and cold water extract (46.48mm and 40.64mm respectively)were effective. Zone of inhibition of 48.26mm, 68.58mm, 25.4mm were observed respectively formethanol, acetone and hot water extracts of nutmeg shell. The highest zone was given by acetoneextract of watermelon peel.Fig.9 Effect of extracts on Sporotrichum pruinosum, the zone of inhibition of 34.54mm, 66.04mm and56.64mm were observed respectively for the methanol, acetone and hot water extract of orange peelbut cold water extract was not observed against the organism. The zone of inhibition of 36.32mm,33.02mm and 66.04mm were observed respectively for the methanol, hot and cold water extract ofstone apple shell but acetone extract was not found effective against the organism. The zone ofinhibition of 39.62mm and 34.54mm were observed respectively for the hot and cold water extract ofpea peel and no zone of inhibition was observed for remaining two extract. Apart from methanolextract of coconut shell, the area of inhibition was observed respectively by acetone extracts1897 J. Chem. Bio. Phy. Sci. Sec. B; 2013, Vol.3, No.3; 1886-1899.