Jessore University of Science & Technology

About: Jessore University of Science & Technology is a based out in . It is known for research contribution in the topics: Adsorption & Population. The organization has 811 authors who have published 974 publications receiving 10471 citations.

Bioactivities of Sonneratia Caseolaris (Linn) Leaf and Stem Using Different Solvent Systems

Abstract: Sundarbans is the largest single block of tidal halophytic mangrove forest in the world and located in southern part...

Assessment of Rainwater Quality from Harvested Rainwater in the Coastal Region of Bangladesh

Abstract: The remote coastal regions of Bangladesh have been identified as climate induced hazard-prone areas. The traditional drinking water sources (e.g. rivers, groundwater) in the coastal area have become contaminated due to saltwater intrusion from the rising sea levels and frequent natural disasters. The main objective of this study is to assess the quality of harvested rainwater (HRW). The rainwater quality assessment programme comprised of fifteen households with rainwater harvesting (RWH) systems, and an analysis was conducted on the physical, chemical and microbiological parameters. Additionally, a sanitary inspection survey was conducted for the RWH systems, which was used to compare the microbiological data obtained from HRW. The physical and chemical parameters of HRW were within the Bangladesh and World Health Organization (WHO) standards for drinking water quality, however the assessment for the microbial quality did not pass the requirements. All samples were contaminated by total coliforms (TC) and 60% samples were contaminated by faecal coliforms (FC). A positive correlation was found between FC and sanitary risk score (R2=0.6861). Additional treatment is recommended for the HRW due to frequent detection of microbial contamination and to achieve the new SDG target of ‘safely managed water’.

Preparation and characterisation of graphene oxide nanofluid and its electrical conductivity

Abstract: Recently, two dimensional honeycomb lattice structural graphene grants unique properties that are currently being pursued for conductive composites, advanced electronics, membranes, etc. In this work, we report the preparation of graphene oxides (GO) nanofluids by dispersion of GO nanosheets in base fluid. Firstly, GO sheets were synthesised in controlled size using improved Hummer method by simply oxidation and facile exfoliation procedure. As prepared samples are characterised by UV-vis spectrometer, Fourier transform infrared spectroscopy (FTIR) spectrometer, scanning electron microscopy (SEM) and X-ray powder diffraction (XRD). The XRD pattern revels that GO were form in nanoscale with crystalline structure. SEM image confirmed that GO were form in ultra small sheet state with smooth surface. UV-vis absorption spectrum reveals that GO nanosheets disperse well in the base fluid. FTIR result reveals the presence of functional group in the lattice which helps the graphene oxide sheets to interact with water molecules and good dispersion. In terminology of electrical conductivity, the result suggests that the samples with 0.1% volume of GO had the highest conductivity with the value of 5,310 μS/cm.

Clonal Propagation of Strawberry (Fragaria x ananassa Duch.) through In vitro Runner Tip Culture through Incorporation of Growth Hormones

Abstract: Runner tips explants of strawberry give rise to multiple shoots when cultured on MS medium supplemented with different concentrations and combinations of BAP with KIN or NAA or GA3.The highest response of shoot multiplication was obtained on MS containing 2.5 mgl-1 BAP + 0.5 mgl-1 Kin + 0.5 mgl-1 GA3. The maximum frequency of rooting (83%) and highest number of roots (3.49) was produced in medium containing 1.0 mgl-1 IBA. The well grown rooted plantlets were acclimatized and successfully established in autoclaved vermiculate soil and as well as natural condition. Using our established protocol, it is also possible to provide large numbers of micropropagated plantlets of this cultivars to produce high quality strawberry fruit for commercial cultivation practices.