Ecoscience Research Foundation

Chennai, India

Ecoscience Research Foundation

Chennai, India
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Rupani P.F.,Universiti Sains Malaysia | Embrandiri A.,Universiti Sains Malaysia | Ibrahim M.H.,Universiti Sains Malaysia | Shahadat M.,Indian Institute of Technology Delhi | And 3 more authors.
Environmental Science and Pollution Research | Year: 2017

The present paper reports management of palm oil mill effluent (POME) mixed with palm-pressed fibre (PPF) POME-PPF mixture using eco-friendly, cost-effective vermicomposting technology. Vermicomposting of POME-PPF was performed to examine the optimal POME-PPF ratio with respect to the criteria of earthworm biomass and to evaluate the decomposition of carbon and nitrogen in different percentages of POME-PPF mixtures. Chemical parameters such as TOC, N, P and K contents were determined to achieve optimal decomposition of POME-PPF. On this basis, the obtained data of 50% POME-PPF mixture demonstrated more significant results throughout the experiment after addition of the earthworms. However, 60 and 70% mixtures found significant only in the last stages of the vermicomposting process. The decomposition rate in terms of -ln (CNt/CNo) showed that the 50% mixture has higher decomposition rate as compared to the 60 and 70% (k50% = 0.0498 day−1). The vermicomposting extracts (50, 60 and 70%) of POME-PPF mixtures were also tested to examine the growth of mung bean (Vigna radiata). It was found that among different extract dilutions, 50% POME-PPF vermicompost extract provided longer root and shoot length of mung bean. The present study concluded that the 50% mixture of POME-PPF could be chosen as the optimal mixture for vermicomposting in terms of both decomposition rate and fertilizer value of the final compost. [Figure not available: see fulltext.]. © 2017, Springer-Verlag Berlin Heidelberg.

Srivastava V.,Banaras Hindu University | Ismail S.A.,Ecoscience Research Foundation | Singh P.,Banaras Hindu University | Singh R.P.,Banaras Hindu University
Reviews in Environmental Science and Biotechnology | Year: 2015

Management of municipal solid waste is a global problem and is faced by all developing countries. The rapid pace of increase in population, economic growth, urbanization and industrialization is coupled with accelerated solid waste generation. In most of the developing countries wastes are either scattered in urban centers or disposed off unplanned in low lying areas or open dumps. The lack of infrastructure for collection, transportation, treatment and disposal of solid waste, proper solid waste management planning, insufficient financial resources, technical expertise and public attitude have made the situation exasperating due to which several environmental and health related problems are increasing. Though, there are many negative issues related to solid waste, it also provides many opportunities that not only mitigates its negative impact but also helps in meeting the demand for energy and employment generation as well as in soil health improvement. Keeping in mind the present situation the current review was planned with the objective to overlook the challenges and opportunities faced during urban solid waste management in developing countries like India. © 2014, Springer Science+Business Media Dordrecht.

Dhakshayani C.,P.A. College | Ismail S.A.,Ecoscience Research Foundation | Dawood N.,P.A. College
Nature Environment and Pollution Technology | Year: 2014

Earthworms harness the microorganisms which are beneficial to the agro-ecosystem, as they synergistically decompose soil organic matter and help in nutrients cycling. Lampito mauritii and Perionyx excavatus are endemic earthworms which dominate the Indian soils, especially in south India. However, the exotic earthworm Eudrilus eugeniae has been harnessed for the formation of compost and organic matter decomposition. Endemic earthworms do not coexist with exotics as they eliminate the former due to competition for food and space. The present study aims to reveal the physical, chemical and biological differences between the different products of the endemic earthworms L. mauritii and P. excavatus and the exotic earthworm E. eugeniae to better understand their contributions to agricultural soil and nutrient management. The three major earthworm products include cast, compost and drilosphere soil of earthworms. Different groups of microorganisms present in earthworm products include major microbial groups, biofertilisers, carbon, and nitrogen mineralizers. The results reveal that the products of endemic earthworms show significant increase in biofertilisers such as nitrogen fixers and phosphate solubilizers, heterotrophic bacteria, fungi and actinomycetes compared to the products from the exotic earthworm. Among the three products studied, vermicompost, especially of the endemic species, shows a balanced C/ N ratio and increased microbial density including biofertilisers.

Ayyappan S.R.,Sathyabama University | Srikumar R.,Bharathidasan University | Thangaraj R.,Ecoscience Research Foundation | Jegadeesh R.,University of Madras | Hariprasath L.,University of Madras
Biomedicine | Year: 2011

Background & Objectives: Dermatophytes are fungi that can cause infections in keratin tissue constitute a serious problem, especially in tropical and subtropical countries. Antimicrobials of plant origin are effective in the treatment of infectious diseases while simultaneously mitigating many side effects that are often associated with synthetic antimicrobials. The lack of data on antifungal activity of Bacopa monniera makes this study unique. Methods: In the present study crude aqueous and ethanolic extract of B. monniera were prepared and their antifungal effects were assessed against the dermatophytic fungi namely Aspergillus niger, Aspergillus flavus, Trichophyton rubrum and Microsporum. Results: Result showed ethanolic extract had high inhibitory action against the studied fungus when compared to aqueous extract. In both ethanolic and aqueous extract the maximum inhibition activity was observed against T. rubrum 80% followed by Microsporum, A. flavus and A. niger. In addition this study also showed ethanolic extract is an ideal solvent. Conclusion: The present study revealed that B. monniera have antifungal activity. Among the extracts evaluated in this study, ethanolic extract showed highest antifungal activity.

Embrandiri A.,Universiti Sains Malaysia | Rupani P.F.,Universiti Sains Malaysia | Ismail S.A.,Ecoscience Research Foundation | Singh R.P.,Banaras Hindu University | And 2 more authors.
International Journal of Recycling of Organic Waste in Agriculture | Year: 2016

Purpose: Research has shown that oil palm decanter cake (DC) serves as a potential source of nutrients for plant growth. This study therefore investigated the applicability of decanter cake (DC) as an amendment to soil for the growth of Solanum melongena (brinjal) at three ratios 10, 20, 30 % DC and suitable controls (0 %). Methods: Seeds of brinjal were sown in soils amended with decanter cake at 10, 20, 30 % w/w and 0 % as control. Nutrient enrichment factors were calculated from the concentration of selected metals (Cu, Ca, Fe, Zn and Mg) in plant parts. The scanning electron micrographs were also taken to measure the stomatal opening/closing due to the effect of excess nutrients on the leaf structure. Results: Enrichment factor (EF) values in this study were all below 3 indicating low enrichment of metal ions from soil to plants. SEM studies of the leaf epidermis of the test plants revealed the closure of guard cells with increasing decanter cake treatments. Conclusions: Decanter cake at 20 % amendments with soil could serve as a source of soil amendment for cultivation of S. melongena plants. © 2016, The Author(s).

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