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SCREENING OF PLANT SPECIES FOR INHIBITION OF BACTERIAL POPULATION OF RAW WATER

机译:抑制原水细菌种群的植物种类的筛选

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Seven plant species i.e., Adhatoda vasica, Andrographis paniculata, Azadirachta indica, Lawsonia inermis, Moringa oleifera, Ocimum sanctum and Trigonella foenum-graecum have been screended out systematically for their effectiveness in inhibition of bacterial population of raw water (in vitro) at variable pH level i.e., 6.0, 6.5, 7.0, 7.5 and 8.0. Maximum percentage inhibition was observed in three plant species at 6.5 pH level while in four plant species at 7.0 pH level. Among all the studied plant, maximum inhibition was recorded in case of L. inermis (93.97/100) which was followed by M. oleifera (89.72/100) and A. vasica (81.75/100) . In order of maximum to minimum inhibition, individual plant species depicted their effectivenss in the following manner: L. intermis > M. oleifera >A. vasica > A. indica > O. sanctum > A. paniculata > T. foenum-graecum. Besides, MPN coliform and E. coli were also inhibited maximum at 7.0 pH level by the extract of L. inermis which was followed by A. vasica and M. oleifera at 6.5 pH level. Hence, these plant species may be used for elimination of bacterial contaminants of raw drinking water obtained directly from the sources to reduce the occurrence of different water borne diseases.
机译:系统地筛选了七个植物物种,即Adhatoda vasica,Andrographis paniculata,Azadirachta indica,Lawsonia inermis,Moringa oleifera,Ocimum sanctum和Trigonella foenum-graecum,它们在可变pH值下均能有效抑制(体外)原水细菌种群。级别,即6.0、6.5、7.0、7.5和8.0。在6.5 pH值的三种植物中观察到最大的抑制百分比,而在7.0 pH值的四种植物中观察到最大的抑制百分比。在所有研究过的植物中,在无定形乳杆菌(93.97 / 100)的情况下记录了最大的抑制作用,其次是油生分枝杆菌(M.oleifera)(89.72 / 100)和A.vasica(81.75 / 100)。按照从最大到最小的抑制顺序,各个植物物种以下列方式描述它们的作用:互生乳酸杆菌>油橄榄>A。 vasica> A. indica> O. sanctum> A. paniculata> T. foenum-graecum。此外,无水乳杆菌提取物在7.0 pH值下对MPN大肠菌群和大肠杆菌也有最大的抑制作用,其次是6.5 pH值的A. vasica和oleifera。因此,这些植物物种可用于消除直接从水源中获得的原水的细菌污染物,以减少不同水传播疾病的发生。

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