Mapping of Bioremediation Research Output in India: A Scientometric Study

By Saravanan, S.; Baskaran, Dr C. | Library Philosophy and Practice, December 2018 | Go to article overview

Mapping of Bioremediation Research Output in India: A Scientometric Study


Saravanan, S., Baskaran, Dr C., Library Philosophy and Practice


INTRODUCTION

Bioremediation is a procedure used to treat contaminated media, including water, soil and subsurface material, by modifying natural conditions to invigorate development of microorganisms and corrupt the objective toxins. Much of the time, bioremediation is more affordable and more economical than other remediation choices. Natural treatment is a comparable approach used to treat wastewater, modern waste and strong waste. Most bioremediation forms include oxidation-reduction where either an electron acceptor (regularly oxygen) is added to invigorate oxidation of a lessened contamination (e.g. hydrocarbons) or an electron contributor (normally a natural substrate) is added to lessen oxidized toxins (nitrate, perchlorate, oxidized metals, chlorinated solvents, explosives and propellants). In both these methodologies, extra supplements, vitamins, minerals, and pH cushions might be added to upgrade conditions for the microorganisms. At times, particular microbial societies are included (bioaugmentation) to additionally upgrade biodegradation. A few cases of bioremediation related innovations are phytoremediation, mycoremediation, bioventing, bioleaching, landfarming, bioreactor, treating the soil, bioaugmentation, rhizofiltration, and biostimulation.

OBJECTIVES

The main objective of this study was to use Scientometric mapping and analyze the key features of Bioremediation research activities at Indian level such as : the rate of growth and doubling time on bioremediation research, to identify document wise distribution of publications, to analyze the authorship pattern and examine the extent of research collaboration, to identify the ranking of authors based on publications, to identify journal wise distribution of publications and to assess the Institution wise research concentration and Global citation score of the publications.

METHODOLOGY

The research publications were retrieved from the Web of Science core collections database on the topic Bioremediation, which is scattered over the period from 1994 to 2018. The data was collected during the first week of July 2018. The search was carried out using the keyword Bioremediation in the 'topic field' and refined to the Country "India". A total of 1981 publications were downloaded and the same was analyzed using the software HistCite, VoSviewer and Microsoft Excel as per the objectives of the study.

ANALYSIS AND INTERPRETATION

Relative Growth rate and Doubling Time

To analyze the year wise publication of research on Bioremediation, the data has been presented in Table 1. The research output on Bioremediation publication is taken as a tool to evaluate the performance at various levels. It also shows that chronological histogram of citations, demonstrating that citation frequency grew steadily from 1994; it reached a maximum TGCS of 3479 and TLCS of 323 in the same year 2011.

Table 1 could clearly see that during the period 1994 to 2018 a total of 1981 publications were published at India level. The highest publication is 238 in the year 2016 and 2017 with 1101 and 381 TGCS followed by 200 papers in 2015 with 1363 TGCS and 196 papers in 2014 with 2104 TGCS. The lowest publication is 2 in 1994 with 28 TGCS. Table 1 shows that even minimum numbers of records were scored higher global citations, such as in the year 1997 and 2000 has produced only 7 and 9 papers respectively, but it has received as TGCS of 1517 and 1619. The study also reveals all these 1981 publications have 37149 TGSC, it shows that there is a healthy trend in citation found in bioremediation research output.

It is observed that its relative growth rates have decreased gradually from 1.26 in 1994 to 0.13 in 2017. The whole study period records the mean relative growth rate of 0.276. Contrarily, the doubling time for publication of all sources of output has increased from 0.55 in 1994 to 11.5 in 2018. The doubling time for publications at the aggregate level has been computed as 3. …

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