Pub Date : 2024-03-31DOI: 10.3329/bjsir.v59i1.69080
V. Rajalaxmi, G. M. Harshini, C. V. S. Nathan, G. Sridevi, G. M. Kumar
The aim of the study is to analyse the effectiveness of TENS [transcutaneous electrical nerve stimulation] on improving hyposalivation in Xerostomia patients with diabetes mellitus. This was an experimental study with pre and post-test type. Sixty (60) Diabetes mellitus patients with hyposalivation condition were treated with TENS on their external surface of salivary glands and other corresponding buccal nerves. The duration of the treatment is for 15-20 minutes 1 session per day four sessions a week for 4 weeks. A simplified questionnaire is used as a screening tool and Sialometry method is used to analyze the saliva secretion. Saliva samples were collected from the subjects prior to TENS stimulation. The present study states that, the salivary secretion was increased after TENS application in continuous mode (p<0.001) and burst mode (p<0.001). It was illustrated when compared to saliva taken before therapy, particularly in xerostomic diabetes mellitus patients. Bangladesh J. Sci. Ind. Res. 59(1), 01-06, 2024
{"title":"Effectiveness of trancutaneous electrical nerve stimulationon improving hyposalivation in xerostomia patients with diabetes mellitus","authors":"V. Rajalaxmi, G. M. Harshini, C. V. S. Nathan, G. Sridevi, G. M. Kumar","doi":"10.3329/bjsir.v59i1.69080","DOIUrl":"https://doi.org/10.3329/bjsir.v59i1.69080","url":null,"abstract":"The aim of the study is to analyse the effectiveness of TENS [transcutaneous electrical nerve stimulation] on improving hyposalivation in Xerostomia patients with diabetes mellitus. This was an experimental study with pre and post-test type. Sixty (60) Diabetes mellitus patients with hyposalivation condition were treated with TENS on their external surface of salivary glands and other corresponding buccal nerves. The duration of the treatment is for 15-20 minutes 1 session per day four sessions a week for 4 weeks. A simplified questionnaire is used as a screening tool and Sialometry method is used to analyze the saliva secretion. Saliva samples were collected from the subjects prior to TENS stimulation. The present study states that, the salivary secretion was increased after TENS application in continuous mode (p<0.001) and burst mode (p<0.001). It was illustrated when compared to saliva taken before therapy, particularly in xerostomic diabetes mellitus patients.\u0000Bangladesh J. Sci. Ind. Res. 59(1), 01-06, 2024","PeriodicalId":8735,"journal":{"name":"Bangladesh Journal of Scientific and Industrial Research","volume":"19 18","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140358732","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}
Pub Date : 2024-03-31DOI: 10.3329/bjsir.v59i1.69561
T. E. Aruna, I. F. Bolarinwa, B. O. Olaleye, O. V. Adepoju
White bread is a fermented, energy-dense food with minimal protein and certain macro and micronutrients required for important living functions. In this study, bread was fortified with roasted cowpea flour (RCF) in varied amounts (0-20%). The chemical compositions and sensory properties of RCF-supplemented bread samples were evaluated using conventional procedures. Proximate analysis results demonstrated that RCF addition greatly raised the crude fiber (1.78-2.32%), ash (3.08-3.46%), fat (4.58-5.35%), and crude protein (13.81-16.82%) of the bread samples, while carbohydrate content (71.3-66.84%) reduced significantly. Supplementing bread with RCF increased the mineral content (calcium, iron, phosphorus, and magnesium) of the final bread samples. The sensory assessment score demonstrated differences in general acceptability between sample B (5% RCF with 95% wheat flour) and the other bread samples. Thus, supplementing white bread with RCF resulted in bread with improved nutritional content, particularly protein, magnesium, and phosphorous, which are required for good health. Bangladesh J. Sci. Ind. Res. 59(1), 27-34, 2024
{"title":"Cowpea seed nutrients: Impacts on nutritional quality and acceptability of bread","authors":"T. E. Aruna, I. F. Bolarinwa, B. O. Olaleye, O. V. Adepoju","doi":"10.3329/bjsir.v59i1.69561","DOIUrl":"https://doi.org/10.3329/bjsir.v59i1.69561","url":null,"abstract":"White bread is a fermented, energy-dense food with minimal protein and certain macro and micronutrients required for important living functions. In this study, bread was fortified with roasted cowpea flour (RCF) in varied amounts (0-20%). The chemical compositions and sensory properties of RCF-supplemented bread samples were evaluated using conventional procedures. Proximate analysis results demonstrated that RCF addition greatly raised the crude fiber (1.78-2.32%), ash (3.08-3.46%), fat (4.58-5.35%), and crude protein (13.81-16.82%) of the bread samples, while carbohydrate content (71.3-66.84%) reduced significantly. Supplementing bread with RCF increased the mineral content (calcium, iron, phosphorus, and magnesium) of the final bread samples. The sensory assessment score demonstrated differences in general acceptability between sample B (5% RCF with 95% wheat flour) and the other bread samples. Thus, supplementing white bread with RCF resulted in bread with improved nutritional content, particularly protein, magnesium, and phosphorous, which are required for good health.\u0000Bangladesh J. Sci. Ind. Res. 59(1), 27-34, 2024","PeriodicalId":8735,"journal":{"name":"Bangladesh Journal of Scientific and Industrial Research","volume":"12 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140359963","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}
Pub Date : 2024-03-31DOI: 10.3329/bjsir.v59i1.69839
A. Nahar, S. Dhar, Nigar Sultana Pinky, A. Ahmed, Muhammed Yusuf Miah, Md Ashraful Alam, F. N. Robel, Muhammad Shahriar Bashar, Monika Mahmud, Md Abdul Gafur
This study demonstrates a comparative study on the mechanical, thermal, and morphological properties between waste-fibers/unsaturated polyester (WF/PE) and talc/waste-fibers/unsaturated polyester (T/WF/PE) hybrid composite. Here, reinforcing materials came from discarded coir doormats and jute sacks. The waste fibre was treated with NaOH and then embedded into the polyester matrix using a cold compression moulding technique. On the other hand, talc filler and waste-fibres reinforced polyester resin hybrid composite was developed using the same technique, and a comparative study was performed. WF/PE hybrid composite showed tensile and flexural strength of 36.67 MPa and 38.76 MPa respectively. Talc filler-filled T/WF/PE hybrid composite reported 23.95 MPa of tensile strength and 65.2 MPa of flexural strength. Average Leeb’s robust hardness (LRH) was found 495.667 and 524.75 for WF/PE and T/WF/PE respectively. T/WF/PE hybrid composite presented low-temperature thermal degradation compared to WNF/PE hybrid composite. Surface morphology studies showed that coagulation of fibres, voids, and fibre pullout at the inner interface of the composite was a common phenomenon for both composites. WF/PE composite showed higher electrical resistivity to applied voltage compared to T/WF/PE. Water absorption studies showed that talc filler boosted the water adsorption of the T/WF/PE hybrid composite. Bangladesh J. Sci. Ind. Res. 59(1), 17-26, 2024
{"title":"Extrinsic properties of unsaturated polyester resin-based hybrid composite reinforced with waste-fibers versus waste-fibers and talc: A comparative study","authors":"A. Nahar, S. Dhar, Nigar Sultana Pinky, A. Ahmed, Muhammed Yusuf Miah, Md Ashraful Alam, F. N. Robel, Muhammad Shahriar Bashar, Monika Mahmud, Md Abdul Gafur","doi":"10.3329/bjsir.v59i1.69839","DOIUrl":"https://doi.org/10.3329/bjsir.v59i1.69839","url":null,"abstract":"This study demonstrates a comparative study on the mechanical, thermal, and morphological properties between waste-fibers/unsaturated polyester (WF/PE) and talc/waste-fibers/unsaturated polyester (T/WF/PE) hybrid composite. Here, reinforcing materials came from discarded coir doormats and jute sacks. The waste fibre was treated with NaOH and then embedded into the polyester matrix using a cold compression moulding technique. On the other hand, talc filler and waste-fibres reinforced polyester resin hybrid composite was developed using the same technique, and a comparative study was performed. WF/PE hybrid composite showed tensile and flexural strength of 36.67 MPa and 38.76 MPa respectively. Talc filler-filled T/WF/PE hybrid composite reported 23.95 MPa of tensile strength and 65.2 MPa of flexural strength. Average Leeb’s robust hardness (LRH) was found 495.667 and 524.75 for WF/PE and T/WF/PE respectively. T/WF/PE hybrid composite presented low-temperature thermal degradation compared to WNF/PE hybrid composite. Surface morphology studies showed that coagulation of fibres, voids, and fibre pullout at the inner interface of the composite was a common phenomenon for both composites. WF/PE composite showed higher electrical resistivity to applied voltage compared to T/WF/PE. Water absorption studies showed that talc filler boosted the water adsorption of the T/WF/PE hybrid composite.\u0000Bangladesh J. Sci. Ind. Res. 59(1), 17-26, 2024","PeriodicalId":8735,"journal":{"name":"Bangladesh Journal of Scientific and Industrial Research","volume":"17 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140359660","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}
Pub Date : 2024-03-31DOI: 10.3329/bjsir.v59i1.71133
A. Wijekoon, F. Marikar
This research explores the role of the Sri Lanka Army’s in enhancing food security within the country. Food security is a critical concern in Sri Lanka, influenced by factors such as climate change, agricultural practices, and societal dynamics. Leveraging their capabilities and resources, the Sri Lanka Army can significantly contribute to addressing these challenges. This study examines the potential contributions of the army in terms of food production, infrastructure development, technology adoption, and capacity building and development. Research design is a mixed-methods approach were used by a structured questionnaire targeting various stakeholders, including pertinent Sri Lanka Army personnel and conducted in-depth interviews with key stakeholders. The analysis underscores the importance of collaboration, knowledge transfer, and sustainable practices in achieving lasting food security. Through a comprehensive approach and collaborative efforts involving various stakeholders, including government bodies, local communities, and agricultural organizations, a more resilient and secure food system can be envisioned for Sri Lanka. Bangladesh J. Sci. Ind. Res. 59(1), 35-46, 2024
{"title":"Case study of agriculture and development projects on Sri lanka army’s contribution to achieve food security","authors":"A. Wijekoon, F. Marikar","doi":"10.3329/bjsir.v59i1.71133","DOIUrl":"https://doi.org/10.3329/bjsir.v59i1.71133","url":null,"abstract":"This research explores the role of the Sri Lanka Army’s in enhancing food security within the country. Food security is a critical concern in Sri Lanka, influenced by factors such as climate change, agricultural practices, and societal dynamics. Leveraging their capabilities and resources, the Sri Lanka Army can significantly contribute to addressing these challenges. This study examines the potential contributions of the army in terms of food production, infrastructure development, technology adoption, and capacity building and development. Research design is a mixed-methods approach were used by a structured questionnaire targeting various stakeholders, including pertinent Sri Lanka Army personnel and conducted in-depth interviews with key stakeholders. The analysis underscores the importance of collaboration, knowledge transfer, and sustainable practices in achieving lasting food security. Through a comprehensive approach and collaborative efforts involving various stakeholders, including government bodies, local communities, and agricultural organizations, a more resilient and secure food system can be envisioned for Sri Lanka.\u0000Bangladesh J. Sci. Ind. Res. 59(1), 35-46, 2024","PeriodicalId":8735,"journal":{"name":"Bangladesh Journal of Scientific and Industrial Research","volume":"10 20","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140358946","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}
Pub Date : 2024-03-31DOI: 10.3329/bjsir.v59i1.70040
N. Akter, S. Chakma, K. Fatama, M. N. Alam, M. A. K. Azad
In this study an attempt has been undertaken to utilize the solid wastes generated by the leather industry, particularly raw trimmings, for making bio-adhesive in a cost effective and sustainable way. To enhance the adhesion properties of prepared bio-adhesive, polyvinyl alcohol (PVA) with different ratios were incorporated. Here raw trimmings was hydrolyzed using calcium oxide (CaO) and yielded maximum gelatin of 38.67% at 75°C and 4.5 hrs. The properties of the prepared adhesives were assessed through the various parameters such as viscosity, ash content, pH, density, moisture content, shear strength and peel strength. Considering shear and peel strength test, bio-adhesive containing Gelatin-PVA ratio of 1:4 have shown characteristics features that can be used as temporary adhesive in different stages of leather products preparations. This ratio almost fulfill the standard requirement. Bangladesh J. Sci. Ind. Res. 59(1), 07-16, 2024
{"title":"Impact of polyvinyl alcohol for bio-adhesives preparation from tannery solid waste and its application in leather products industry","authors":"N. Akter, S. Chakma, K. Fatama, M. N. Alam, M. A. K. Azad","doi":"10.3329/bjsir.v59i1.70040","DOIUrl":"https://doi.org/10.3329/bjsir.v59i1.70040","url":null,"abstract":"In this study an attempt has been undertaken to utilize the solid wastes generated by the leather industry, particularly raw trimmings, for making bio-adhesive in a cost effective and sustainable way. To enhance the adhesion properties of prepared bio-adhesive, polyvinyl alcohol (PVA) with different ratios were incorporated. Here raw trimmings was hydrolyzed using calcium oxide (CaO) and yielded maximum gelatin of 38.67% at 75°C and 4.5 hrs. The properties of the prepared adhesives were assessed through the various parameters such as viscosity, ash content, pH, density, moisture content, shear strength and peel strength. Considering shear and peel strength test, bio-adhesive containing Gelatin-PVA ratio of 1:4 have shown characteristics features that can be used as temporary adhesive in different stages of leather products preparations. This ratio almost fulfill the standard requirement.\u0000Bangladesh J. Sci. Ind. Res. 59(1), 07-16, 2024","PeriodicalId":8735,"journal":{"name":"Bangladesh Journal of Scientific and Industrial Research","volume":"5 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140359667","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}
Pub Date : 2024-03-31DOI: 10.3329/bjsir.v59i1.69057
Delwar Hossain, Md Minal Hossain Prodhan, Md Nazim Hossain, S. S. Dipti, Md. Abul Kalam Azad, Md. Anwarul Karim
The column chromatography method was used with brick sand particles as an adsorbent for the removal of heavy metals (Cr, Fe, and Pb) from the aqueous solution. These metals can pollute water, and soil and also come in contact with the food chain, causing life-threatening health issues in the human body. The pore volume and the specific surface area of the brick sand particles were determined using the standard method which was 44.41% and 29.4 m2/g respectively. The different concentrations of toxic metals in the water solution were considered to determine the adsorption capacity of the adsorbent. The adsorption methods were able to remove about 94% of Cr, 24% Pb, and 69% Fe from the aqueous solution. From the investigation results, we may conclude that raw brick sand particles can play a vital role as an adsorbent in the treatment of heavy metal-contaminated wastewater. Moreover, the saturated adsorbent can be used as an element of construction materials to prevent further pollution. Bangladesh J. Sci. Ind. Res. 59(1), 47-54, 2024
{"title":"Brick sand particles as an adsorbent in column chromatography to remove heavy metals from solution","authors":"Delwar Hossain, Md Minal Hossain Prodhan, Md Nazim Hossain, S. S. Dipti, Md. Abul Kalam Azad, Md. Anwarul Karim","doi":"10.3329/bjsir.v59i1.69057","DOIUrl":"https://doi.org/10.3329/bjsir.v59i1.69057","url":null,"abstract":"The column chromatography method was used with brick sand particles as an adsorbent for the removal of heavy metals (Cr, Fe, and Pb) from the aqueous solution. These metals can pollute water, and soil and also come in contact with the food chain, causing life-threatening health issues in the human body. The pore volume and the specific surface area of the brick sand particles were determined using the standard method which was 44.41% and 29.4 m2/g respectively. The different concentrations of toxic metals in the water solution were considered to determine the adsorption capacity of the adsorbent. The adsorption methods were able to remove about 94% of Cr, 24% Pb, and 69% Fe from the aqueous solution. From the investigation results, we may conclude that raw brick sand particles can play a vital role as an adsorbent in the treatment of heavy metal-contaminated wastewater. Moreover, the saturated adsorbent can be used as an element of construction materials to prevent further pollution.\u0000Bangladesh J. Sci. Ind. Res. 59(1), 47-54, 2024","PeriodicalId":8735,"journal":{"name":"Bangladesh Journal of Scientific and Industrial Research","volume":"25 17","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140358813","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}
Pub Date : 2023-12-23DOI: 10.3329/bjsir.v58i4.70260
A. Hasan, I. Hossain, T. Tsunogae, Md Sahiduzzaman, Zareen Yeasmin, M. Alam, Md Ali Akbar, M. N. Zaman
The Fe-rich deposits from Hakimpur (Bangladesh) are associated with a broad range of rock types including BIF, biotite schist, quartzite and amphibolite. Geochemical analysis coupled with petrographic studies indicates the BIF and BIF-hosted rocks were derived from sedimentary protoliths. In the sediments, clay minerals were altered at a certain thermobarometric condition during metamorphism: Clay (illite) → chlorite → biotite → amphibole, which is evident from silicification, chloritization, biotitization, saussuritization and epidotization in petrographic results. Monazite chemistry U-Th-Pb geochronological evidence indicates the deposit was affected by a single, medium-grade metamorphic event that occurred at 1728±28 Ma during the Basement rock’s magmatic event activated. The metamorphic alteration was took place by the hydrothermal action or orogenic activity due to magmatism of Palaeoproterozoic basement rock occurred surrounding the areas. The temperatures condition and oxygen fugacities obtained from zircon and coexisting magnetite and ilmenite assemblages [677–692°C and 522–809°C (at 10-23.9 to 10-11.9 fo2), respectively] are partly compatible with known crystallization conditions of the dioritic basement rock in Bangladesh. Bangladesh J. Sci. Ind. Res. 58(4), 241-264, 2023
{"title":"Mineralogy, geochemistry and monazite U-Th-Pb geochronology of the Hakimpur banded iron formation deposit, Bangladesh: a petrogenetic study","authors":"A. Hasan, I. Hossain, T. Tsunogae, Md Sahiduzzaman, Zareen Yeasmin, M. Alam, Md Ali Akbar, M. N. Zaman","doi":"10.3329/bjsir.v58i4.70260","DOIUrl":"https://doi.org/10.3329/bjsir.v58i4.70260","url":null,"abstract":"The Fe-rich deposits from Hakimpur (Bangladesh) are associated with a broad range of rock types including BIF, biotite schist, quartzite and amphibolite. Geochemical analysis coupled with petrographic studies indicates the BIF and BIF-hosted rocks were derived from sedimentary protoliths. In the sediments, clay minerals were altered at a certain thermobarometric condition during metamorphism: Clay (illite) → chlorite → biotite → amphibole, which is evident from silicification, chloritization, biotitization, saussuritization and epidotization in petrographic results. Monazite chemistry U-Th-Pb geochronological evidence indicates the deposit was affected by a single, medium-grade metamorphic event that occurred at 1728±28 Ma during the Basement rock’s magmatic event activated. The metamorphic alteration was took place by the hydrothermal action or orogenic activity due to magmatism of Palaeoproterozoic basement rock occurred surrounding the areas. The temperatures condition and oxygen fugacities obtained from zircon and coexisting magnetite and ilmenite assemblages [677–692°C and 522–809°C (at 10-23.9 to 10-11.9 fo2), respectively] are partly compatible with known crystallization conditions of the dioritic basement rock in Bangladesh. Bangladesh J. Sci. Ind. Res. 58(4), 241-264, 2023","PeriodicalId":8735,"journal":{"name":"Bangladesh Journal of Scientific and Industrial Research","volume":"24 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139162606","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}
Pub Date : 2023-12-23DOI: 10.3329/bjsir.v58i4.68778
V. C. Eze, E. C. Okoronkwo, A. C. Ngene, E. S. Odo
This study explored the biofertilizer capabilities of Rhizobium leguminosarum on two tropical vegetables, Talinum triangulare (waterleaf) and Telfairia occidentalis (pumpkin). The microorganisms were isolated, characterized, and inoculated onto activated charcoal carriers at varying concentrations for each vegetable, with controls using sterile activated charcoal and N.P.K fertilizer. After 28 days, growth indices including plant biomass, height, and mean leaf area were evaluated. Results showed significant growth improvements with Rhizobium leguminosarum, ranging from 107.77% to 286.78% for waterleaf and 166.52% to 358.26% for pumpkin, surpassing N.P.K fertilizer. Leaf areas also increased significantly, with Rhizobium-inoculated vegetables outperforming chemically fertilized ones. While the impact on plant height was relatively lower, this research highlights the potential of Rhizobium leguminosarum as a fertilizer for enhancing waterleaf and pumpkin growth. Future studies should expand on these findings in different vegetable types and environmental conditions to validate real-world field applications. Bangladesh J. Sci. Ind. Res. 58(4), 231-240, 2023
{"title":"Biofertilizer potentials of Rhizobium leguminosarum on two common tropical vegetable plants Talinium triangulare (waterleaf) and Telfairia occidentalis (pumpkin)","authors":"V. C. Eze, E. C. Okoronkwo, A. C. Ngene, E. S. Odo","doi":"10.3329/bjsir.v58i4.68778","DOIUrl":"https://doi.org/10.3329/bjsir.v58i4.68778","url":null,"abstract":"This study explored the biofertilizer capabilities of Rhizobium leguminosarum on two tropical vegetables, Talinum triangulare (waterleaf) and Telfairia occidentalis (pumpkin). The microorganisms were isolated, characterized, and inoculated onto activated charcoal carriers at varying concentrations for each vegetable, with controls using sterile activated charcoal and N.P.K fertilizer. After 28 days, growth indices including plant biomass, height, and mean leaf area were evaluated. Results showed significant growth improvements with Rhizobium leguminosarum, ranging from 107.77% to 286.78% for waterleaf and 166.52% to 358.26% for pumpkin, surpassing N.P.K fertilizer. Leaf areas also increased significantly, with Rhizobium-inoculated vegetables outperforming chemically fertilized ones. While the impact on plant height was relatively lower, this research highlights the potential of Rhizobium leguminosarum as a fertilizer for enhancing waterleaf and pumpkin growth. Future studies should expand on these findings in different vegetable types and environmental conditions to validate real-world field applications. Bangladesh J. Sci. Ind. Res. 58(4), 231-240, 2023","PeriodicalId":8735,"journal":{"name":"Bangladesh Journal of Scientific and Industrial Research","volume":"217 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139160999","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}
Ivermectin (IVM), a BCS Class II drug with weak water solubility, has minimal oral absorption and dissolution. This study aims to enhance the dissolution profile of IVM by performing solid dispersion methods using four hydrophilic polymers: Kollicoat IR, Kollidon 90F, poloxamer 407, and hydroxypropyl methylcellulose (HPMC). The solid dispersion formulations (SDF) were made through physical mixing, solvent evaporation, and melt solvent/fusion. Using three ratios of IVM and hydrophilic carriers (1:1, 1:2, and 1:3), the cumulative release rate of IVM from formulations formed by physical mixing, solvent evaporation, and fusing was much larger than pure IVM (10%). IVM release rates from formulations including Poloxamer 407, Kollicoat IR, and HPMC polymers were 76% (fusion technique), 69% (physical mixing), and 47% (solvent evaporation method). The research demonstrated that fusion optimized drug solubility better than physical mixing and solvent evaporation. The research found that SD of weakly water-soluble IVM with Kollicoat IR/Poloxamer 407 improves its in vitro dissolving profile much better. Bangladesh J. Sci. Ind. Res. 58(4), 209-220, 2023
{"title":"Improvement of in vitro dissolution profile of poorly aqueous soluble anti-parasitic agent ivermectin using novel hydrophilic polymeric carriers","authors":"Tanvir Rahman, Md Abdurrahim, Koma Afrin Rintu, Md Raihan Sarkar, Md Alamgir Kabir, Dipa Islam, Md Hasanuzzaman","doi":"10.3329/bjsir.v58i4.69047","DOIUrl":"https://doi.org/10.3329/bjsir.v58i4.69047","url":null,"abstract":"Ivermectin (IVM), a BCS Class II drug with weak water solubility, has minimal oral absorption and dissolution. This study aims to enhance the dissolution profile of IVM by performing solid dispersion methods using four hydrophilic polymers: Kollicoat IR, Kollidon 90F, poloxamer 407, and hydroxypropyl methylcellulose (HPMC). The solid dispersion formulations (SDF) were made through physical mixing, solvent evaporation, and melt solvent/fusion. Using three ratios of IVM and hydrophilic carriers (1:1, 1:2, and 1:3), the cumulative release rate of IVM from formulations formed by physical mixing, solvent evaporation, and fusing was much larger than pure IVM (10%). IVM release rates from formulations including Poloxamer 407, Kollicoat IR, and HPMC polymers were 76% (fusion technique), 69% (physical mixing), and 47% (solvent evaporation method). The research demonstrated that fusion optimized drug solubility better than physical mixing and solvent evaporation. The research found that SD of weakly water-soluble IVM with Kollicoat IR/Poloxamer 407 improves its in vitro dissolving profile much better. Bangladesh J. Sci. Ind. Res. 58(4), 209-220, 2023","PeriodicalId":8735,"journal":{"name":"Bangladesh Journal of Scientific and Industrial Research","volume":"43 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139161798","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}
Pub Date : 2023-12-23DOI: 10.3329/bjsir.v58i4.68402
C. Deocaris, Jose Rene L Micor, Muxi Zhang, Malona V. Alinsug, Elmer Rico E Mojica
Herbal teas are widely consumed for their health benefits. In this study, the phenolic content and antioxidant capacity of six commercially available banaba (Lagerstroemia speciosa) and sambong (Blumea balsamifera) herbal teas were analyzed. The antioxidant activity was measured using DPPH and ABTS assays, with L. speciosa teas exhibiting higher activity than B. balsamifera teas. The phenolic content was determined using the Folin-Ciocalteu method and showed a direct correlation with antioxidant activity. The market prices based on unit phenolic content and antioxidant activity varied widely with different brands sold online indicating the need for better quality control of the teas analyzed. Bangladesh J. Sci. Ind. Res. 58(4), 265-270, 2023
凉茶因其保健功效而被广泛饮用。在这项研究中，分析了六种市售 Banaba（Lagerstroemia speciosa）和 sambong（Blumea balsamifera）凉茶的酚含量和抗氧化能力。采用 DPPH 和 ABTS 法测定了抗氧化活性，结果表明 L. speciosa 茶的抗氧化活性高于 B. balsamifera 茶。酚含量采用 Folin-Ciocalteu 法测定，结果显示酚含量与抗氧化活性直接相关。根据单位酚含量和抗氧化活性，网上销售的不同品牌茶叶的市场价格差异很大，这表明需要对所分析的茶叶进行更好的质量控制。孟加拉 J. Sci.58(4), 265-270, 2023
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