<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>47</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Arora, Amit</style></author><author><style face="normal" font="default" size="100%">Cameotra, Swaranjit Singh</style></author><author><style face="normal" font="default" size="100%">Kumar, Rajnish</style></author><author><style face="normal" font="default" size="100%">Singh, Anil Kumar</style></author><author><style face="normal" font="default" size="100%">Kumar, Pushpendra</style></author><author><style face="normal" font="default" size="100%">Balomajumder, Chandrajit</style></author><author><style face="normal" font="default" size="100%">Laik, Sukumar</style></author></authors><secondary-authors><author><style face="normal" font="default" size="100%">Kumar, S</style></author><author><style face="normal" font="default" size="100%">Khanal, SK</style></author><author><style face="normal" font="default" size="100%">Yadav, YK</style></author></secondary-authors></contributors><titles><title><style face="normal" font="default" size="100%">Role of Rhamnolipid: A biosurfactant in methane gas hydrate formation kinetics</style></title><secondary-title><style face="normal" font="default" size="100%">Proceedings of The First International Conference on Recent Advances in Bioenergy Research</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Induction time</style></keyword><keyword><style  face="normal" font="default" size="100%">methane hydrate</style></keyword><keyword><style  face="normal" font="default" size="100%">Potential energy resource</style></keyword><keyword><style  face="normal" font="default" size="100%">Pseudomonas aeruginosa</style></keyword><keyword><style  face="normal" font="default" size="100%">Rhamnolipid</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2016</style></year><pub-dates><date><style  face="normal" font="default" size="100%">FEB</style></date></pub-dates></dates><publisher><style face="normal" font="default" size="100%">Sardar Swaran Singh Natl Inst Bio-Energy</style></publisher><pub-location><style face="normal" font="default" size="100%">7th Floor, Vijaya Building, 17, Barakhamba Rd, New Delhi, 110 001, India</style></pub-location><isbn><style face="normal" font="default" size="100%">978-81-322-2773-1; 978-81-322-2771-7</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Naturally occurring methane gas hydrate is a vast source of methane gas which is trapped in crystalline ice-like structure present in permafrost regions and under the sea in outer continental margins. It is purposed that total amount of carbon in the form of methane hydrates is almost twice the carbon content in all the fossil fuel reserves put together, and hence these are supposed to be the future potential energy resource. This paper investigates the laboratory investigations on effect of a biosurfactant rhamnolipid on methane hydrate formation kinetics. Rhamnolipid was produced by Pseudomonas aeruginosa strain A11. The presence of P. aeruginosa has been reported in Gulf of Mexico gas hydrate samples. Biosurfactant reduced the surface tension of water from 72 to 36 mN/m with CMC of 70 mg/L. The biosurfactant dose is studied at two different concentrations in the solution at 100 and 1000 ppm. Kinetic of hydrate formation and growth is compared at 0, 100, and 1000 ppm of rhamnolipid showing that rhamnolipid acts as a hydrate promoter at these concentrations. Thus, small dosages of rhamnolipids produced by P. aeruginosa strain A11 must clearly affect the gas hydrate formation kinetics in natural sites (as in Gulf of Mexico).&lt;/p&gt;</style></abstract><custom3><style face="normal" font="default" size="100%">&lt;p&gt;Indian&lt;/p&gt;</style></custom3></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Arora, Amit</style></author><author><style face="normal" font="default" size="100%">Cameotra, Swaranjit Singh</style></author><author><style face="normal" font="default" size="100%">Balomajumder, Chandrajit</style></author><author><style face="normal" font="default" size="100%">Kumar, Rajnish</style></author><author><style face="normal" font="default" size="100%">Singh, Anil Kumar</style></author><author><style face="normal" font="default" size="100%">Santhakumari, B.</style></author><author><style face="normal" font="default" size="100%">Kumar, Pushpendra</style></author><author><style face="normal" font="default" size="100%">Laik, Sukumar</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Rhamonolipids produced by Pseudomonas aeruginosa promotes methane hydrates formation in fixed bed silica gel medium</style></title><secondary-title><style face="normal" font="default" size="100%">Marine Geophysical Research</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Biosurfactant</style></keyword><keyword><style  face="normal" font="default" size="100%">Energy</style></keyword><keyword><style  face="normal" font="default" size="100%">Glycolipids</style></keyword><keyword><style  face="normal" font="default" size="100%">Induction time</style></keyword><keyword><style  face="normal" font="default" size="100%">Kinetic promoter</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2021</style></year><pub-dates><date><style  face="normal" font="default" size="100%">MAR</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">42</style></volume><pages><style face="normal" font="default" size="100%">5</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Natural gas hydrates are seen as an alternative future energy source. They have also been valued for their carbon dioxide capturing capability, gas separation, desalination, natural gas storage and transportation. Developing economical and viable gas hydrate based technology is one of the most promising research areas of present decade. Successful commercialization of gas hydrate based technology is often curtailed due to slow formation rate. The present study evaluates biosurfactant as a kinetic promoter of methane hydrates formation in a fixed bed C type silica gel medium. Biosurfactant was produced by growing Pseudomonas aeruginosa strain A11 in glycerol supplemented mineral salt medium. Biosurfactant characterization with FTIR, NMR and MALDI-TOF spectroscopy reveled it to be a glycolipids type biosurfactant namely rhamnolipids. Saturating C type silica gel with of 100 ppm rhamnolipids solution enhanced the rate of methane hydrates formation by reducing the induction time. Mole of methane consumed and percentage of water to hydrate conversion was observed to be more in 1000 ppm rhamnolipids saturated C type silica gel as compared to quiescent water system and water saturated silica gel system. Overall results suggest that rhamonolipids produced by strain A11 in combination with silica gel can be utilized as environmentally safe kinetic promoter for methane hydrate formation.&lt;/p&gt;
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