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Fermentative bio-hydrogen production using lignocellulosic waste biomass:a revie

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Waste Disposal and Sustainable Energy 2020年第4期2卷 249-264页

作者： Khushboo Swapnil Bhurat Tushar Banerjee jitendra Kumar pandey Pranoti Belapurkar School of Life Science Devi Ahilya Vishwa VidyalayaIndoreMadhya PradeshIndia Department of Research and Development University of Petroleum and Energy StudiesDehradunIndia Department of Biosciences Acropolis InstituteIndoreMadhya PradeshIndia

Solid waste management needs,increasing pollution level by burning or dumping of waste,and the use of fossil fuels and depleting energy resources are a few of the problems of the decade that need to find *** of lots of compound polymers-rich biomass waste is done worldwide by dumping on land or into water bodies or else by incineration or long-term storage in an available facility *** kind of disposal instead becomes a reason to add the soil,water,and air pollution.A lot of multidisciplinary collaboration in different streams of science and technology has added to the efficiency of using such waste for use as an alternative energy form,like biogas and *** use of biogas plants for converting biological waste into methane using municipal solid waste(MSW)is known since a long *** with MSW,a lot of other agricultural waste and kitchen waste are also added every day to *** the complex components of such waste material like lignocellulosic wastes still don’t pass the test of qualifying as a resource for biogas and even more energy-efficient and cleaner biofuel,*** may be because of its complicated structure and a lot of parameters that affect its use for converting it into *** review is designed to analyze and compare these parameters for optimum lignocellulosic waste conversion,more specifically agriculture and food waste,into cleaner energy forms that would help to tackle the solid waste management and air pollution control more effectively.

关键词： Bio-hydrogen Biofuel Lignocellulosic waste Second-generation biofuels Factors affecting bio-hydrogen production

An Improved Methodology to Overcome Key Issues in Human Fecal Metagenomic DNA Extraction

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Genomics, Proteomics & Bioinformatics 2016年第6期14卷 371-378页

作者： jitendra Kumar Manoj Kumar Shashank Gupta Vasim Ahmed Manu Bhambi Rajesh pandey Nat Singh Chauhan Department of Biochemistry Maharshi Dayanand UniversityRohtak 124001India Ayurgenomics Unit Translational Research and Innovative Science Through AyurgeomicsCouncil of Scientific and Industrial ResearchInstitute of Genomics and Integrative BiologyNew Delhi 110020India

Microbes are ubiquitously distributed in nature, and recent culture-independent studies have highlighted the significance of gut microbiota in human health and disease. Fecal DNA is the primary source for the majority of human gut microbiome studies. However, further improvement is needed to obtain fecal metagenomic DNA with sufficient amount and good quality but low host genomic DNA contamination. In the current study, we demonstrate a quick, robust, unbiased, and cost-effective method for the isolation of high molecular weight （〉 23 kb） metagenomic DNA （260/280 ratio 〉 1.8） with a good yield （55.8 ± 3.8 ng/mg of feces）. We also confirm that there is very low human genomic DNA contamination （eubacterial： human genomic DNA marker genes = 227.9：1） in the human feces. The newly-developed method robustly performs for fresh as well as stored fecal samples as demonstrated by 16S rRNA gene sequencing using 454 FLX＋. Moreover, 16S rRNA gene analysis indicated that compared to other DNA extraction methods tested, the fecal metagenomic DNA isolated with current methodology retains species richness and does not show microbial diversity biases, which is further confirmed by qPCR with a known quantity of spike-in genomes. Overall, our data highlight a protocol with a balance between quality, amount, user-friendliness, and cost effectiveness for its suitability toward usage for cultureindependent analysis of the human gut microbiome, which provides a robust solution to overcome key issues associated with fecal metagenomic DNA isolation in human gut microbiome studies.

关键词： Metagenomic DNAextraction Gut microbiome Human feces 16S rRNA

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Slumping in the Upper Jurassic Baisakhi Formation of the Jaisalmer Basin, western India: Sign of synsedimentary tectonics?

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Journal of Palaeogeography 2017年第4期6卷 321-332页

作者： Matthias Alberti Dhirendra K.pandey jitendra K.Sharma Narendra K.Swami Alfred Uchman Institut für Geowissenschaften Christian-Albrechts-Universitt zu Kiel Department of Geology University of Rajasthan Earth & Planetary Sciences Group/Palaeontology Manipal Center for Natural Sciences Manipal University Institute of Geological Sciences Jagiellonian University

A spectacularly exposed slump is described from a 120-m-long road cut between the villages of Kanod and Deva in the northeastern Jaisalmer Basin of Rajasthan,*** Upper Jurassic part of the sediments at the outcrop was formed in a near-shore setting and belongs to the Ludharwa Member of the Baisakhi *** 3-m-thick unit shows a number of asymmetric folds and thrust faults leading to an imbrication of partly lithified sandstone *** deformation structures allow the reconstruction of a movement towards the *** agrees well with the basin configuration that shows a deepening into this *** the determination of a specific trigger mechanism is difficult for soft-sediment deformation structures,an earthquake caused by synsedimentary tectonics in the basin seems to be the most likely explanation.

关键词： Sedimentology Mass movements Slumping Soft-sediment deformation structures Jaisalmer Basin Jurassic

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Recurrent hardgrounds and their significance for intra-basinal correlations:a case study of upper Bathonian rocks from the western margin of the Indian craton

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Journal of Palaeogeography 2019年第1期8卷 19-30页

作者： Dhirendra K.pandey Franz T.Fürsich Matthias Alberti jitendra K.Sharma Narendra Swami Earth and Planetary Sciences Group Manipal Center for Natural SciencesCentre of Excellence Dr. TMA Pai Planetarium Building Manipal Academy of Higher Education FG Pal?oumwelt GeoZentrum Nordbayern Friedrich-Alexander Universit?t Erlangen-Nürnberg Institut für Geowissenschaften Christian-Albrechts-Universit?t zu Kiel Department of Geology University of Rajasthan Himalayan Geology Division Geological Survey of India Northern Region

A set of two to three prominent hardgrounds can be traced for more than 40 km from east to west within the Jurassic succession of the Jaisalmer Basin at the western margin of the Indian Craton. The hardgrounds started to form under subtidal conditions in a mixed carbonate–siliciclastic setting during the last phase of a transgressive systems tract, i.e. the maximum flooding zone. The age difference between the hardgrounds is very small, but they differ lithologically. Typically, the stratigraphically oldest hardground occurs at the top of a 1-m-thick calcareous sandstone. It is characterized by a spectacular megaripple surface encrusted with oysters and subsequently occasionally bored by bivalves. The hardground is overlain by 10–25 cm of biowackestone to biopackstone, at the top of which another hardground is developed. This second hardground is characterized by abundant bivalve(Gastrochaenolites isp.) and "worm" borings(Trypanites and Meandropolydora isp.) and occasional oyster encrustations. The third hardground can be found within the overlying 60-cm-thick, bioturbated, fossiliferous silty marly packstone. It shows common to abundant oyster encrustations and occasional borings together with reworked concretions. The individual hardground can be well recognized throughout the basin based on lithology and biotic components. The second hardground(biowackestone to biopackstone) with abundant bivalve and worm borings is most prominent and widespread. Lithostratigraphically, these three hardground surfaces belong to the uppermost part of the Bada Bag Member of the Jaisalmer Formation. Based on ammonites, such as Perisphinctes congener(Waagen), brachiopods, and corals, this interval of the Bada Bag Member has been assigned a late Bathonian age. The entire succession above the first hardground is bioturbated up to the overlying marly silt of the Kuldhar Member of the Jaisalmer Formation, which is already Callovian in age. The characteristic hardground lithologies, toget

关键词： Hardgrounds Stratigraphy Palaeoenvironment Jurassic Jaisalmer Basin

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