{"title":"Ion dynamics in post harvest saline soil influenced by organic amendment and moisture level","authors":"S. Akter, H. Khan","doi":"10.3329/bjsir.v56i3.55966","DOIUrl":"https://doi.org/10.3329/bjsir.v56i3.55966","url":null,"abstract":"Organic amendments might be effective and sustainable in the amelioration of saline soil if proper management put in place. Accordingly, subsequent pot and field experiments were conducted in a saline soil to determine the effects of moisture levels and organic amendments on cation exchange capacity (CEC), ion dynamics under rice cultivation. The increment of CEC of the studied post harvest soils was significant, except for the moist condition under field experiment. There were significant variations in ion dynamics among the treatments under both the experiments at saturated soil conditions. Exchangeable Na+ contents decreased and K+ contents increased significantly with the increased rates of treatments. Exchangeable Ca2+ and Mg2+ contents of soil followed almost the similar trends as that exhibited by K+ but not significant. Among the anions, chloride decreased significantly under both the experiments while sulfate and bicarbonate contents increased by the applied treatments. This might be due to the inherent consequences of organic amendments on these soil properties.\u0000Bangladesh J. Sci. Ind. Res.56(3), 185-194, 2021","PeriodicalId":8735,"journal":{"name":"Bangladesh Journal of Scientific and Industrial Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45501390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Titanium dioxide nanoparticle incorporated PVDF-HFP based composite membrane for direct methanol fuel cells application","authors":"M. Karim","doi":"10.3329/bjsir.v56i2.54319","DOIUrl":"https://doi.org/10.3329/bjsir.v56i2.54319","url":null,"abstract":"Two composite polymeric membranes were synthesized using poly vinylidene fluoride-hexafluoroprropylene (PVDF-HFP) host in polyvinyl alcohol and with or without TiO2 nanoparticlesas a porous substrate. The structure of the membranes was PDVF-HFP/PVA and PVDF-HFP/PVA/TiO2.The composition of the synthesized membranes was analyzed by FTIR spectrum.The porosity of the polymer membranes were measured by immersing the membranes into n-butanol. The conductivity of the composite membranes was determined by impedance spectroscopy and the methanol permeability of the membranes was obtained from diffusion experiments. The surface morphology images were investigated by scanning electron microscope(SEM). The SEM image of the composite membrane incorporated with TiO2 has many pores which increased the conductivity of the membrane as compared to non TiO2 incorporated one. The composite membrane with TiO2 showed a good balance between proton conductivity and methanol permeability. The cell with PVDF-HFP/PVA/TiO2 composite membrane showed higher power density. \u0000Bangladesh J. Sci. Ind. Res.56(2), 125-132, 2021","PeriodicalId":8735,"journal":{"name":"Bangladesh Journal of Scientific and Industrial Research","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41437217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
N. Momtaz, A. Parvin, M.K. Hossain, B. Saha, M. Moniruzzaman, A. Kibria, M. Sarker, J. Munshi
{"title":"Blood meal organic fertiliser application on onion yield","authors":"N. Momtaz, A. Parvin, M.K. Hossain, B. Saha, M. Moniruzzaman, A. Kibria, M. Sarker, J. Munshi","doi":"10.3329/bjsir.v56i2.54315","DOIUrl":"https://doi.org/10.3329/bjsir.v56i2.54315","url":null,"abstract":"In this study, effects of bloodmeal on onion (Allium cepa L. CV. BARI peaj-1) cultivation to increase yield and related attributes have been tested. The effect of blood meal as fertilizers has been compared with growth hormone treatment and other conventional fertilizer. In the field, the different amount of growth elements treated were at the rate of 2550, 241.90 and 0.17 kg/ha for blood meal, urea and gibberellic acid (GA3), respectively. The yield performance was 172.84, 189.59 and 153.34 MT/ha for GA3, urea and blood meal, respectively. Using GA3 is expensive, and use of urea, a chemical fertilizer, can have adverse effect on soil. Blood meal, a biological ingredient, appears to be a bio-rationale amendment for production and sustained yield of onion. The results will need to ground truth tested in the field. \u0000Bangladesh J. Sci. Ind. Res.56(2), 87-94, 2021","PeriodicalId":8735,"journal":{"name":"Bangladesh Journal of Scientific and Industrial Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45072501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Sarker, M. Rashid, Dc Roy, M. Musarrat, UH Bithi
{"title":"Ginger (Zingiber officinale) powder from low temperature drying technique","authors":"A. Sarker, M. Rashid, Dc Roy, M. Musarrat, UH Bithi","doi":"10.3329/bjsir.v56i2.54320","DOIUrl":"https://doi.org/10.3329/bjsir.v56i2.54320","url":null,"abstract":"Ginger powder was prepared using different low temperature drying techniques and their nutritional, phytochemicals, functional and sensory quality were investigated. Moisture content was significantly (p<0.05) higher (7.16±0.04%) in shade dried powder and lowest in oven dried powder. Protein, fat and fiber contents varied with drying techniques ranging from 6.08±0.05 to 6.68±0.07%, 1.08±0.16 to 1.39±0.25% and 3.86±0.13 to 5.11±0.06% respectively. Highest alkaloid content was found in mechanical dried powder (4.44±0.04%), while highest flavonoid content was found in oven dried ginger powder (4.67±0.07%) and maximum saponin content was recorded in shade dried powder (2.67±0.10%). Highest ascorbic acid content (3.53±0.08 mg/100g) was found in shade dried powder and lowest was recorded in oven dried ginger powder (3.53±0.08 mg/100g). Sun drying technique exhibited better nutritional and sensory quality. The sensory score demonstrated that acceptance of all dried ginger powder was in the range of liked very much to liked moderately by the panelist. Low temperature drying techniques have positive significance on retaining phytochemicals and sensory quality of processed ginger. \u0000Bangladesh J. Sci. Ind. Res.56(2), 133-140, 2021","PeriodicalId":8735,"journal":{"name":"Bangladesh Journal of Scientific and Industrial Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45745863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
I. Bolarinwa, T. Aruna, R. Ajetunmobi, J. Adejuyitan, OW Alawode
{"title":"Pawpaw enriched soymilk beverage","authors":"I. Bolarinwa, T. Aruna, R. Ajetunmobi, J. Adejuyitan, OW Alawode","doi":"10.3329/bjsir.v56i2.54317","DOIUrl":"https://doi.org/10.3329/bjsir.v56i2.54317","url":null,"abstract":"Effects of enriching soymilk with pawpaw puree at different ratios (10 – 40%) were evaluated for physicochemical properties, vitamin A and C, mineral contents, and sensory attributes. The results showed increase in total soluble solids (5.5 – 8.5 oBrix), total titratable acidity (0.53 – 0.87 g/kg) and viscosity (19.9 – 26.7 cp), but decreased in pH (7.4 – 6.8). Vitamin A and C contents of the soy-pawpaw beverage increased from 12.4– 20.4 μg/100 ml and 10.9 – 25.8 mg/100 ml, respectively. All the macromineral contents of the enriched soymilk beverages increased significantly except for sodium.Enrichment of soymilk with pawpaw puree improved the sensory attributes of the drink in terms of flavour, taste, mouthfeel and overall acceptance, especially at high supplementation level (40%). Soymilk with pawpaw puree resulted in products with better vitamin A and C and macro-mineral contents than plain soymilk drink, thus, the soy-pawpaw beverage will complement consumers micro and macro-nutrient intake. \u0000Bangladesh J. Sci. Ind. Res.56(2), 105-114, 2021","PeriodicalId":8735,"journal":{"name":"Bangladesh Journal of Scientific and Industrial Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43538261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Experimental design modelling for the extraction of vanadium(IV) extraction V(IV)-SO4 2- (H+, Na+)-Cyanex 301-kerosene system","authors":"A. Karmakar, R. Biswas","doi":"10.3329/bjsir.v56i2.54316","DOIUrl":"https://doi.org/10.3329/bjsir.v56i2.54316","url":null,"abstract":"The vanadium(IV) extraction from acidic sulphate medium by Cyanex 301 (bis-(2,4,4-trimethylpentyl) dithiophosphinic acid) dissolved in kerosene is explored from the modelling point of view. The time of equilibration is only 10 min and above pH(eq) = 2, high extraction (>90%) occurs.On keeping organic to aqueous phase ratio of 1, factors affecting the extent of extraction (log D and log CD) are pH(eq), [V(IV)],[SO4 2-], [Cyanex 301]and temperature (T). The high (+) and low (-) levels are considered for the factors. The 25 factorial design is used to find the regression equation for the V(IV) extraction by Cyanex 301. On symbolizing pH(eq), log [V(IV)], , log [SO4 2-], log [Cyanex 301], and 1/T (K-1); where concentration terms are in mol/L, as P , M, S,E, and (1/T), respectively,the regression equation obtained is: log CD = 1.95 - 0.23 M + 1.83 P + 2.07 E + 0.84 S - (888.9/T) - 0.26 PS.The current system shows only the interaction effect among pH(eq) and [SO4 2-]. The equation can well describe the system,and it can be used to optimize factors for satisfactory extraction. \u0000Bangladesh J. Sci. Ind. Res.56(2), 95-104, 2021","PeriodicalId":8735,"journal":{"name":"Bangladesh Journal of Scientific and Industrial Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48576033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Competitive antagonism of housefly γ-aminobutyric acid receptors by iminopyridazine butanoic acids","authors":"Mm Rahman, F. Ozoe, Y. Ozoe","doi":"10.3329/bjsir.v56i1.52690","DOIUrl":"https://doi.org/10.3329/bjsir.v56i1.52690","url":null,"abstract":"The competitive antagonistic activities of a series of gabazine (3) based 3-substituted iminopyridazine butanoic acid analogs [4-(3-aryl/heteroaryl-1,6-dihydro- 6-iminopyridazin-1-yl) butanoic acid hydrochlorides] 4a-4k (Figure 1) were examined at housefly (Musca domestica) GABA receptors expressed in Xenopus oocytes using two-electrode voltage-clamp (TEVC) technique. The 4-biphenylyl analog 4e exhibited the highest inhibition (approximately 68%) of GABA-induced currents at 100 μM with an IC50 value of 40.81 ± 3.89 μM. The 2-naphthyl analog 4h was the second most active compound with approximately 48% inhibition. The 4-biphenylyl analog 4e demonstrated competitive antagonism of housefly GABA receptors. Ligand docking studies into the binding site of housefly GABA receptor homology model predicted that the aromatic 3-substituents are tolerable in the pyridazine ring. The results presented in this paper about GABA receptor competitive antagonists may helpful for design and development of GABA receptor related insecticides. \u0000Bangladesh J. Sci. Ind. Res.56(1), 9-16, 2021","PeriodicalId":8735,"journal":{"name":"Bangladesh Journal of Scientific and Industrial Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45176907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Row orientation and weeding time effect on yield of Aman rice","authors":"M. Alam, M. Mondal","doi":"10.3329/bjsir.v56i1.52695","DOIUrl":"https://doi.org/10.3329/bjsir.v56i1.52695","url":null,"abstract":"The effect of row orientation and weeding time on growth, yield and yield attributes of transplanted Aman (T. Aman) rice cv. BRRI dhan41 were tested in the agronomy field laboratory of the Bangladesh Agricultural University, Mymensingh. The experiment was carried out from July to December 2017. It comprised three row orientations viz. east-west, north-south and haphazard planting, and four weeding times viz. no weeding, weeding at 20 days after transplanting (DAT), weeding at 40 DAT and weeding at 60 DAT. Plant height, total tillers per hill, effective tillers per hill, grains per panicle, grain and straw yields were greater in east-west and north-south row orientation than in haphazard planting being the highest in east-west row orientation. But within east-west and north-south row orientation, there was no significant difference on plant characters. The highest performance in yield attributes and yield was observed in weeding at 40 DAT and the lowest one was recorded in no weeding. Among the treatment combinations, the highest yield was observed in east-west row orientation with weeding at 40 DAT for BRRI dhan41. \u0000Bangladesh J. Sci. Ind. Res.56(1), 47-52, 2021","PeriodicalId":8735,"journal":{"name":"Bangladesh Journal of Scientific and Industrial Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43588678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"In vitro regeneration of Mirabilis jalapa L.","authors":"MS Rahman, NC Nandi, B. Goswami","doi":"10.3329/bjsir.v56i1.52692","DOIUrl":"https://doi.org/10.3329/bjsir.v56i1.52692","url":null,"abstract":"In vitro regeneration of Mirabilis jalapa L., an important medicinal plant, has been successfully established from nodal explants. Maximum numbers of shoots (8.1) were obtained using Murashige and Skoog (MS) medium containing BAP (3.0 mg/l). Next to the highest response by nodal explants of M. jalapa was shown on MS medium supplemented with 2.0 mg/l BAP +1.0 mg/l IAA + 1.0 mg/l Kn. In it, the mean value of shoot number was 7.3. The highest frequency of root induction (80%) were obtained on MS medium supplemented with IAA (0.5 mg/l) and 40 ml/l coconut water. The rooted plantlets were transferred for hardening following acclimatization and finally were successfully planted in the field. \u0000Bangladesh J. Sci. Ind. Res.56(1), 25-28, 2021","PeriodicalId":8735,"journal":{"name":"Bangladesh Journal of Scientific and Industrial Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43345178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Aziz, A. Hassan, Sk Roy, M. Haque, B. Saha, S. Ahmed, M. Rahman, L. Mohanta, O. Mashuk
{"title":"Potential of Gracilaria tenuistipitata var. liui grown in Nuniachara, Cox’s Bazar, Bangladesh","authors":"A. Aziz, A. Hassan, Sk Roy, M. Haque, B. Saha, S. Ahmed, M. Rahman, L. Mohanta, O. Mashuk","doi":"10.3329/bjsir.v56i1.52694","DOIUrl":"https://doi.org/10.3329/bjsir.v56i1.52694","url":null,"abstract":"During selection of Gracilaria tenuistipitata var. liui (red seaweed) growing naturally at Nuniachara sand-flat south-east of Moheshkhali channel, Cox’s Bazar local fishermen informed that Rakhaine and Chakma tribes of Cox’s Bazar and Bandarbon consume the seaweed. To ascertain the quality of the organism as “Seafood” analysis of its nutritional status was carried out using three replicates in many cases. Percentage composition of total crude protein, crude fiber, crude lipid, carbohydrates, ash and moisture were 25.55 ± 0.18, 5.65 ± 0.13, 0.16 ± 0.03, 45.93 ± 1.53, 10.61 ± 0.69 and 12.10 ± 0.25%, respectively. Mineral contents such as phosphorus, calcium, magnesium, iron and copper were 596.90 ± 10.4, 132.75 ± 3.4, 3.90 ± 1.2, 80.13 ± 2.45 and3.99 ± 1.2mg/100gdry wt., respectively. Heavy metals such as Pb, As, Cr and Cd were 0.031, 0.01, 0.06 and 0.02 mg/kg dry wt. respectively, which are below tolerance level. The seaweed contained 9.03% nine essential amino acids and 7.52% five non-essential amino acids. The quantity of total energy, β-carotene and vitamin C were 294.56 Kcal/100g, 11.54 ± 1.20 and 2.5 mg/100g, respectively. Presence of high crude protein, amino acid profiles, β-carotene, phosphorus and low crude lipid and heavy metals made Gracilaria tenuistipitata var. liui to be considered as a good human food supplement. \u0000Bangladesh J. Sci. Ind. Res.56(1), 39-46, 2021","PeriodicalId":8735,"journal":{"name":"Bangladesh Journal of Scientific and Industrial Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44232959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}