Browsing by Author "Poonkothai, M"

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    Antimicrobial Activity and Phytochemical Analysis of Fruit Extracts of Terminalia Bellerica
    (2014) Poonkothai, M
    Objective: In currenl era, herbal products are measured to be the symbols of safety in comparison to the synthetic products that are regarded to be hazardous to human life and environment. Although herbs had been priced for their therapeutic importance, their phytochemical and pharmacological activities are conducted on different parts. With this, an attempt has been made to investigate the antimicrobial activity and phytochemical analysis of Terminalia bellerico fruits. Methods: The antimicrobial activity was evaluated using agar well diffusion method against the bacterial [Escherichia culi, Pseudomonas aeruginosa, Klebsiella pneumonia, Shigella flexneri, and Salmonella typhi) and fungal (Aspergillus niger, Mucor species. Aspergillus fumigatus, Rhizopus species and Aspergillus flavus] isolates using aqueous, petroleum ether and chloi oform extracts of Terminalia beUerica fruits. Phytochemical and FT-IR analysis was earned. ResulLs: It was observed that aqueous extract exhibited significant activity against the tested bacterial and fungal isolates, compared with chloroform and petroleum ether extract respectively. Phytochemical analysis of Terminalia bellenca extracts showed the presence of secondary metabolites like phenolics, alkaloids, flavonoids and tannins. The FT-lR analysis has revealed the presence of phenols, alcohol, amines and carboxylic acid as functional groups in Terminalia bellerica. Conclusion; From this study, it can be concluded that Terminalia bellerica reveal antimicrobial activity against various human pathogenic bacteria.
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    Bio-Sorption of Physico -Chemical Constituents in Textile Drying Using spirogyra Gracilis Kutzing
    (2015) Poonkothai, M
    Dyes Jire nV'StK’ used ti Wge ciusintities tor cobir trip, processes m textile- tndust.rii'rs Dump, tht* process huge sanount o f water is consumed said released into envnotmmt winch is lisiinitiil to die acp.iati: .ainmL'. plsaits said luunaii bc-nigs Variciis physico-chemical tecliULiues have been eiiV’l.y'^d f^^J the lemowd o f dyes ti .iii v.'astewater ^aid these iiieth.'ds cieate a iiujoi pi-obkin ni die dii:posal o f the concentrated sli'lge To coniV'Sit dit' problent algae have been used tn the bioremediiitin of textile dyenig ett'kient which luve attracted the researchers to- gr eat interest The present work lias been sumedfor tiie cliiu acterisaUon of plmico-chemiLalpaisaneters such as co lar. odoui'. teni}.'eiatiir e, pH. elect ic cJ C'.'nducti\'ity, total suspended soHds. total iissoh'ed soHdr, \ aA soltls . chc-miLal oxygen '.lemcaid. total lieu dues s. alkaltut^-’. dissoh'ed ox\'gen, biological oxygen demsaid. chlorides, su^Jiates, phosphites, tun ate, lead, clromnoii , ztii said oilsmcl grease *i die textib dye Jig eJibieiit The results shewed tliat die aL-oi'e physko cheiiiL sJ parameters decreased wlien treate 1 witJi ^ptrogi'ra gracihs vvlii.li lalk wklui die bunts piescrih'ed by BIS except •ii^soh-ed oxygen
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    Biochemical Characterization oe Amylase From Aspergillus Niger and its Application in Desizing
    (2015) Poonkothai, M
    Reduction in pollution and improvement in the fabric quality can be achieved using enzymatic treatment. Aspergillus niger isolated from distillery effluent spilled soil was selected for the study due to its maximum amylase activity. The optimum amylase activity was observed at the pH nine in glycine sodium hydroxide buffer at 60"C for 60 minutes and the enzyme was stable for the first two hours of incubation. A.niger utilized one per cent of starch for maximum amylase activity in medium supplemented with 5g NaCl. Calcium ions were found to activate the enzyme activity whereas mercury ions inhibited the activity to higher extent when compared to other ions. The enzyme was found to desize the fabric effectively. The visual inspection proved all sample to have good general appearance and better texture after enzyme treatment. Luster and whiteness did not show significant change after treatment. All the samples showed reduction in stiffness after desizing with enzymes. Hence, amylases can be explored in textile sector that requires a wide range of optimal conditions.
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    Bioremediation of Safranine Using Cladosporium Species
    (2012-04) Gowri, S; Poonkothai, M
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    Bioremediation of textile dye using fungal isolates and its impact on Catla catla
    (2014-03) Kethrin Subapriya, A; Poonkothai, M
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    Biosorption of methyl orange using Aspergillus fumigatus
    (2015-03) Rubini, M; Poonkothai, M
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    Biosorption of Nickel Electroplating Effluent using lihizopus species and its impact on tile Growth of Cow Pea
    (2012) Poonkothai, M
    I'hc aim ol llic pivsciil invcsligalion ^^■a.s lo assess llie impael ol mic]obially licated nickel eleeli'oplaliiig elllueiU on tlie growth of cow pea uiuler optimal eoiulilioiis. I'lie metal tolerant Inngal was isolated Iroin einnent eontannnated soil and was idenufied as Rliixupus species. Nickel remo\al In the lUu/.opns species was elficient at 2,)% concaitration of nickel electroplating eriluent. Ma.\imum removal ol nickel was observed on seventh dav ol incuhation at iiO-’C' at pi I (>. I'he Inometi u' parameters of cow [x-a plants cullivated in microbially irealed eriluent showed highei growth when compared with iiiitrealed eriluenl and conlrol.
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    Decolourisation of Reactive Dye by Aspergillus niger and its Impact on the Growth of Zinnia eiegans
    (2015) Poonkothai, M
    The present investigation was carried out to assess the decolourisation of reactive dye using Aspergillus niger and its impact on the growth of Zinnia ele'gans. The textile effluent spilled soil sample was assessed for the presence of fungus and screened for the decolourisation of reactive yellow dye. The fungal species, Aspergillus niger exhibited maximum decolourisation in the medium amended with 0.01 g of dye at pH 6.0 at 30°C. Inoculum concentration of 1% amended in the medium for 5 days exhibited maximum oercentage of decolourisation. Among the different carbon and nitrogen sources the maxi- '-rnnum decolourisation activity was observed in the medium supplemented with 1 % glucose and 0.3% ammonium chloride. Zinnia eiegans grown with microbially treated reactive yellow dye (T,) exhibited maximum biometric parameters, such as germination percentage, shoot length, root length, dry weight, fresh weight and vigour index when compared with control plants (T3). The plants grown with untreated reactive yellow dye (T^) recorded minimum growth when compared with T^ and control on 7th day after sowing.
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    Decolourisation of Reactive Dye by Aspergillus niger and its Impact on the Growth of Zinnia eiegans
    (2015) Poonkothai, M
    The present investigation was carried out to assess the decolourisation of reactive dye using Aspergillus niger and its impact on the growth of Zinnia ele'gans. The textile effluent spilled soil sample was assessed for the presence of fungus and screened for the decolourisation of reactive yellow dye. The fungal species, Aspergillus niger exhibited maximum decolourisation in the medium amended with 0.01 g of dye at pH 6.0 at 30°C. Inoculum concentration of 1% amended in the medium for 5 days exhibited maximum oercentage of decolourisation. Among the different carbon and nitrogen sources the maxi- '-rnnum decolourisation activity was observed in the medium supplemented with 1 % glucose and 0.3% ammonium chloride. Zinnia eiegans grown with microbially treated reactive yellow dye (T,) exhibited maximum biometric parameters, such as germination percentage, shoot length, root length, dry weight, fresh weight and vigour index when compared with control plants (T3). The plants grown with untreated reactive yellow dye (T^) recorded minimum growth when compared with T^ and control on 7th day after sowing.
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    Enhancement of Information and Communication Technologies (Ict) for Higher Education
    (2011) Poonkothai, M
    ICT contributes a major role in the field of education, strengthen the relevance of education and raise education quality by teaching and learning process, which is connected to real life. For the past few decades the introduction of ICT's has effective integration with the classroom and other educational Institutions. Even though it is a complex, multifaceted process which not only involves the technology as such, but it requires the teacher's competences, long term financing and Institutional readiness & uphold. Today's need for ICT in the field of higher education is really a wanting technology. It promotes the acquisition of knowledge and skill which will empower and encourage the students for life long learning. It is a necessity to improve ICT, so with this regard many research works have to be conducted, to enhance the quality of higher education. The four factors to be considered to improve ICT in the field of teaching/learning environment include effectiveness, cost, equity and sustainability. Thus, ICT is a translational technology that uplift the shift to a learner focused and aimed environment.
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    Environmental Education
    (2011) Poonkothai, M
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    Environmental Education
    (2011) Poonkothai, M
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    Environmental Education
    (2011) Poonkothai, M