Pub Date : 2022-06-26DOI: 10.3329/bjsir.v57i2.60404
SS Birajdar, JW Gaikwad, D. Suryawanshi
Molecular interactions between CBZ-ACN at 8.845 GHz of microwave frequency region confer structural behavior of molecules such that either monomers or multimers are present in the agreed binary mixtures. Effect of microwave frequency on molecular interactions and hydrogen bonding between C≡N (nitrile) molecule and Cl (chlorine) molecule of CBZ and ACN binary solutions has been studied using X-band microwave technique at 301ºK. Co-operative dynamics and hydrogen bonding between nitrile and chlorine group molecules has been thoroughly explicated thereby obtaining static dielectric constant, excess permittivity, Kirkwood correlation factor using Luzar model and Bruggeman factor. Bangladesh J. Sci. Ind. Res. 57(2), 85-90, 2022
{"title":"Microwave assisted co-operative dynamics and structural variations in chlorobenzene-acetonitrile solutions","authors":"SS Birajdar, JW Gaikwad, D. Suryawanshi","doi":"10.3329/bjsir.v57i2.60404","DOIUrl":"https://doi.org/10.3329/bjsir.v57i2.60404","url":null,"abstract":"Molecular interactions between CBZ-ACN at 8.845 GHz of microwave frequency region confer structural behavior of molecules such that either monomers or multimers are present in the agreed binary mixtures. Effect of microwave frequency on molecular interactions and hydrogen bonding between C≡N (nitrile) molecule and Cl (chlorine) molecule of CBZ and ACN binary solutions has been studied using X-band microwave technique at 301ºK. Co-operative dynamics and hydrogen bonding between nitrile and chlorine group molecules has been thoroughly explicated thereby obtaining static dielectric constant, excess permittivity, Kirkwood correlation factor using Luzar model and Bruggeman factor. \u0000Bangladesh J. Sci. Ind. Res. 57(2), 85-90, 2022","PeriodicalId":8735,"journal":{"name":"Bangladesh Journal of Scientific and Industrial Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48097854","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 : 2022-06-26DOI: 10.3329/bjsir.v57i2.60408
N. Zahra, M. Saeed, S. Nawaz, E. Gulzar
Aloe vera has been widely used for various therapeutic purposes over the millennia. It is becoming increasingly popular due to its antiviral and antibacterial qualities. For many years, aloe vera has been employed in biomedical research. It's a fantastic way to boost the nutritional value of any food product. This research aims to expand on the nutritional value of cookies by including Aloe vera gel. It would focus on the substance's biological and pharmacological characteristics. The nutritional quality of aloe vera cookies was evaluated after being manufactured with all-natural, chemical-free ingredients. The primary objective was to investigate its functional properties, sensory characteristics, and quality characterization. Quality control was performed on aloe vera cookies, and the results were discussed. The process is quick and straightforward, and it comes at a reasonable cost that boosts nutrient content, but it can also be utilized as a part of a well-balanced diet. Because of its beneficial characteristics, aloe vera-based cookies could be particularly beneficial for most vulnerable groups in underdeveloped countries. The cookies are safe to eat daily as a snack food. Bangladesh J. Sci. Ind. Res. 57(2), 117-122, 2022
{"title":"Aloe vera cookies preparation, nutritional aspects, DPPH assay and physicochemical assay","authors":"N. Zahra, M. Saeed, S. Nawaz, E. Gulzar","doi":"10.3329/bjsir.v57i2.60408","DOIUrl":"https://doi.org/10.3329/bjsir.v57i2.60408","url":null,"abstract":"Aloe vera has been widely used for various therapeutic purposes over the millennia. It is becoming increasingly popular due to its antiviral and antibacterial qualities. For many years, aloe vera has been employed in biomedical research. It's a fantastic way to boost the nutritional value of any food product. This research aims to expand on the nutritional value of cookies by including Aloe vera gel. It would focus on the substance's biological and pharmacological characteristics. The nutritional quality of aloe vera cookies was evaluated after being manufactured with all-natural, chemical-free ingredients. The primary objective was to investigate its functional properties, sensory characteristics, and quality characterization. Quality control was performed on aloe vera cookies, and the results were discussed. The process is quick and straightforward, and it comes at a reasonable cost that boosts nutrient content, but it can also be utilized as a part of a well-balanced diet. Because of its beneficial characteristics, aloe vera-based cookies could be particularly beneficial for most vulnerable groups in underdeveloped countries. The cookies are safe to eat daily as a snack food.\u0000Bangladesh J. Sci. Ind. Res. 57(2), 117-122, 2022","PeriodicalId":8735,"journal":{"name":"Bangladesh Journal of Scientific and Industrial Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42581304","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 : 2022-06-26DOI: 10.3329/bjsir.v57i2.60403
S. Abidi, Q. Syed, M. Iqbal, T. Butt
The main objective of this study is to investigate how the bulking agents (BA) effect on municipal solid waste (MSW) moisture contents and refused derived fuel (RDF) pellets bulk density (BD), durability (DU) and hardness. In this experiment applied sugar cane trash, rice husk and cotton waste bulking agents each at 15%, 25%, 35% and 45% to reduce the moisture contents of MSW for RDF pellet development. Sugar cane trash was prominent in moisture reduction capability in 10 days than others BA. MSW and sugar cane trash mixture, RDF pellets pertained maximum BD (1.58 g/cm3), DU (99%) and hardness (27kg) were developed with compaction process, die diameter 8inch and 120◦C. It was also observed smoke appeared at 150◦C during pelting process due to burning of biomass. Furthermore bulking agents had also revealed effectiveness in BD, DU, hardness results as the quantity of BA increased. It was concluded that BA are suitable for moisture reduction and RDF pellet development, can be sued as an alternative energy fuel. Bangladesh J. Sci. Ind. Res. 57(2), 77-84, 2022
{"title":"Impact of bulking agents on municipal solid waste refused derived fuel","authors":"S. Abidi, Q. Syed, M. Iqbal, T. Butt","doi":"10.3329/bjsir.v57i2.60403","DOIUrl":"https://doi.org/10.3329/bjsir.v57i2.60403","url":null,"abstract":"The main objective of this study is to investigate how the bulking agents (BA) effect on municipal solid waste (MSW) moisture contents and refused derived fuel (RDF) pellets bulk density (BD), durability (DU) and hardness. In this experiment applied sugar cane trash, rice husk and cotton waste bulking agents each at 15%, 25%, 35% and 45% to reduce the moisture contents of MSW for RDF pellet development. Sugar cane trash was prominent in moisture reduction capability in 10 days than others BA. MSW and sugar cane trash mixture, RDF pellets pertained maximum BD (1.58 g/cm3), DU (99%) and hardness (27kg) were developed with compaction process, die diameter 8inch and 120◦C. It was also observed smoke appeared at 150◦C during pelting process due to burning of biomass. Furthermore bulking agents had also revealed effectiveness in BD, DU, hardness results as the quantity of BA increased. It was concluded that BA are suitable for moisture reduction and RDF pellet development, can be sued as an alternative energy fuel. \u0000Bangladesh J. Sci. Ind. Res. 57(2), 77-84, 2022","PeriodicalId":8735,"journal":{"name":"Bangladesh Journal of Scientific and Industrial Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48485877","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 : 2022-06-26DOI: 10.3329/bjsir.v57i2.60406
S. Biswas, M. Swarna, A. Paul
The aim of this study was to increase bovine pregnancy rate by intra-vaginal biostimulation penis like device (PLD). A total of 336 heifers/cows were AI, in which PLD was used in 193 animals. Animals were grouped as A (only AI) and B (PLD after AI). The overall pregnancy rate was 70.0%. Pregnancy rate in group B was significantly (P=0.004) higher than that of group A. Cows of >7.5 years old is showed lower pregnancy rate in group A, but higher in group B. The heifers were showed more responsive to PLD than others parity. The parity 5 or more in group B was responded to PLD and showed higher pregnancy rate than that of group A. It was found that age was significantly positive correlation parity whereas significantly negative correlation with breed. It is concluded that PLD will increased the pregnancy rate of cows through biostimulation on vagina. Bangladesh J. Sci. Ind. Res. 57(2), 101-108, 2022
{"title":"Improvement of bovine pregnancy rate through intravaginal biostimulation with penis like device","authors":"S. Biswas, M. Swarna, A. Paul","doi":"10.3329/bjsir.v57i2.60406","DOIUrl":"https://doi.org/10.3329/bjsir.v57i2.60406","url":null,"abstract":"The aim of this study was to increase bovine pregnancy rate by intra-vaginal biostimulation penis like device (PLD). A total of 336 heifers/cows were AI, in which PLD was used in 193 animals. Animals were grouped as A (only AI) and B (PLD after AI). The overall pregnancy rate was 70.0%. Pregnancy rate in group B was significantly (P=0.004) higher than that of group A. Cows of >7.5 years old is showed lower pregnancy rate in group A, but higher in group B. The heifers were showed more responsive to PLD than others parity. The parity 5 or more in group B was responded to PLD and showed higher pregnancy rate than that of group A. It was found that age was significantly positive correlation parity whereas significantly negative correlation with breed. It is concluded that PLD will increased the pregnancy rate of cows through biostimulation on vagina. \u0000Bangladesh J. Sci. Ind. Res. 57(2), 101-108, 2022","PeriodicalId":8735,"journal":{"name":"Bangladesh Journal of Scientific and Industrial Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48053323","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 : 2022-06-26DOI: 10.3329/bjsir.v57i2.60409
M. Saeed, N. Zahra, I. Ahmad, Q. Syed
Oxidative stress is a significant source of the pathogenesis of many chronic diseases; that is why antioxidant behavior is one of the most commonly identified biological activities in citrus fruits. The pulp of citrus fruits is the sticky substance of the fruit's endocarp and contains the fruit's juice. This study scrutinizes the quality assessment, sensory evaluation, and free radical scavenging activity (RSA) of orange (Citrus auranthium) pulp. Free radical scavenging activity was examined by 2, 2-diphenyl-1-picrylhydrazyl assay. The quality assessment parameters results showed that the ºBrix of orange pulp was 64.50, pH 3.70, acidity 5.12, ratio 12.58, pulp 9.70%, and SO2 were not detected. On analyzing the sensory evaluation, it was found that orange pulp juice has the score of appearance (7.07 ± 0.146), color (7.27 ± 0.163), flavor (7.52 ± 0.172), taste (6.87 ± 0.156), and overall acceptability (7.60 ± 0.165). The results of free radical scavenging showed that the percentage inhibition was 9.55-54.80 at concentrations of 0.2-1.0 mg/ml. The antioxidant activity of orange pulp may be due to presence of polyphenols, flavonoids and possibly other compounds in orange pulp that are responsible for this activity. Bangladesh J. Sci. Ind. Res. 57(2), 123-130, 2022
{"title":"Quality assessment, sensory evaluation, and radical scavenging activity (RSA) of orange (Citrus auranthium) pulp","authors":"M. Saeed, N. Zahra, I. Ahmad, Q. Syed","doi":"10.3329/bjsir.v57i2.60409","DOIUrl":"https://doi.org/10.3329/bjsir.v57i2.60409","url":null,"abstract":"Oxidative stress is a significant source of the pathogenesis of many chronic diseases; that is why antioxidant behavior is one of the most commonly identified biological activities in citrus fruits. The pulp of citrus fruits is the sticky substance of the fruit's endocarp and contains the fruit's juice. This study scrutinizes the quality assessment, sensory evaluation, and free radical scavenging activity (RSA) of orange (Citrus auranthium) pulp. Free radical scavenging activity was examined by 2, 2-diphenyl-1-picrylhydrazyl assay. The quality assessment parameters results showed that the ºBrix of orange pulp was 64.50, pH 3.70, acidity 5.12, ratio 12.58, pulp 9.70%, and SO2 were not detected. On analyzing the sensory evaluation, it was found that orange pulp juice has the score of appearance (7.07 ± 0.146), color (7.27 ± 0.163), flavor (7.52 ± 0.172), taste (6.87 ± 0.156), and overall acceptability (7.60 ± 0.165). The results of free radical scavenging showed that the percentage inhibition was 9.55-54.80 at concentrations of 0.2-1.0 mg/ml. The antioxidant activity of orange pulp may be due to presence of polyphenols, flavonoids and possibly other compounds in orange pulp that are responsible for this activity.\u0000Bangladesh J. Sci. Ind. Res. 57(2), 123-130, 2022","PeriodicalId":8735,"journal":{"name":"Bangladesh Journal of Scientific and Industrial Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43753870","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 : 2022-03-30DOI: 10.3329/bjsir.v57i1.58900
Sa Lisa, M. Kabir, Md. Mizanur Rahman, S. Rahman
Repeated use of frying oils can produce elements that degrade food quality and promote the creation of chemicals with negative nutritional consequences and potential health risks. During multiple frying cycles in French fries, the quality of edible oils (soybean oil, rice bran oil, sunflower oil, and palm olein) was assessed. Except for RBO (F: 0.37-0.56 %), FFA percent was discovered in the usual range in SBO, SnFO, and PO. PV was raised by repeated frying, but SnFO showed the most instability (2.38-30.96) meq O2/kg. RBO produced the most trans-fat (0.85-1.21 percent), but SnFO did not produce any. While vitamin A content decreased after three frying cycles, the PO used before retained higher vitamin A (16.29-14.61 mg/kg). However, no oil, even extracted oils, holds up to the quality requirement after three frying cycles. Bangladesh J. Sci. Ind. Res. 57(1), 49-60, 2022
{"title":"Qualitative changes of different vegetable oils during repeated deep frying","authors":"Sa Lisa, M. Kabir, Md. Mizanur Rahman, S. Rahman","doi":"10.3329/bjsir.v57i1.58900","DOIUrl":"https://doi.org/10.3329/bjsir.v57i1.58900","url":null,"abstract":"Repeated use of frying oils can produce elements that degrade food quality and promote the creation of chemicals with negative nutritional consequences and potential health risks. During multiple frying cycles in French fries, the quality of edible oils (soybean oil, rice bran oil, sunflower oil, and palm olein) was assessed. Except for RBO (F: 0.37-0.56 %), FFA percent was discovered in the usual range in SBO, SnFO, and PO. PV was raised by repeated frying, but SnFO showed the most instability (2.38-30.96) meq O2/kg. RBO produced the most trans-fat (0.85-1.21 percent), but SnFO did not produce any. While vitamin A content decreased after three frying cycles, the PO used before retained higher vitamin A (16.29-14.61 mg/kg). However, no oil, even extracted oils, holds up to the quality requirement after three frying cycles.\u0000Bangladesh J. Sci. Ind. Res. 57(1), 49-60, 2022","PeriodicalId":8735,"journal":{"name":"Bangladesh Journal of Scientific and Industrial Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48364441","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 : 2022-03-30DOI: 10.3329/bjsir.v57i1.58896
Sandew Hira, S. Begum, MM Rahman
This project was carried out to investigate the effect of pharmaceutical industry effluents on seed germination and seedling growth of some common cultivated crops of Bangladesh. Four varieties of crops such as Okra, Data shak, Ridge gourd, and Black mustard were selected to grow in this effluent. Concentrations used for the effluents in terms of seed germinations were 0%, 25%, 50%, 75% and 100% respectively. The optimum condition of seed germination obtained for Okra, Data shak and Ridge gourd were 25%, 100% and 50% respectively. However, in terms of Black mustard the germination percentage was same in all condition. At lower dilutions the crops exhibited favorable effect on seed germination, seedling growth, shoot length and root length. Among all 100% concentrations of the effluent caused inhibitory effect in terms of all crops except Black mustard. Based on the present investigations, it can be concluded that pharmaceutical effluent which is discharging as waste can be used for irrigation purpose, after proper dilution. Bangladesh J. Sci. Ind. Res. 57(1), 15-22, 2022
{"title":"Impact of pharmaceutical industry effluent on seed germination and seedling growth of some common crops of Bangladesh","authors":"Sandew Hira, S. Begum, MM Rahman","doi":"10.3329/bjsir.v57i1.58896","DOIUrl":"https://doi.org/10.3329/bjsir.v57i1.58896","url":null,"abstract":"This project was carried out to investigate the effect of pharmaceutical industry effluents on seed germination and seedling growth of some common cultivated crops of Bangladesh. Four varieties of crops such as Okra, Data shak, Ridge gourd, and Black mustard were selected to grow in this effluent. Concentrations used for the effluents in terms of seed germinations were 0%, 25%, 50%, 75% and 100% respectively. The optimum condition of seed germination obtained for Okra, Data shak and Ridge gourd were 25%, 100% and 50% respectively. However, in terms of Black mustard the germination percentage was same in all condition. At lower dilutions the crops exhibited favorable effect on seed germination, seedling growth, shoot length and root length. Among all 100% concentrations of the effluent caused inhibitory effect in terms of all crops except Black mustard. Based on the present investigations, it can be concluded that pharmaceutical effluent which is discharging as waste can be used for irrigation purpose, after proper dilution.\u0000Bangladesh J. Sci. Ind. Res. 57(1), 15-22, 2022","PeriodicalId":8735,"journal":{"name":"Bangladesh Journal of Scientific and Industrial Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43047034","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 : 2022-03-30DOI: 10.3329/bjsir.v57i1.58897
S. Masood, M. Ashraf, I. Ahmad, A. Nisa
The worst element in the modern diet is white sugar, which contains the toxic fructose. As a result, many people have started avoiding fructose and switching to fructose-free sweets. Rice Syrup, for example, contains no fructose. White sugar was replaced with clarified rice syrup in this study. At a pilot plant scale, products such as red herbal syrup, chocolate syrup, cardamom syrup, aloe vera syrup, and plum syrup were made utilizing rice syrup in place of white sugar. During the shelf-life study, all parameters, including microbiological, physicochemical and sensory properties, were found acceptable. In addition, at zero weeks and 48 weeks, the effect of storage days on pH, acidity, brix, sugars content, and sensory attribute was determined. During storage, no notable changes in quality metrics were found. Bangladesh J. Sci. Ind. Res. 57(1), 23-26, 2022
{"title":"Replacement of table sugar with clarified rice syrup in beverages","authors":"S. Masood, M. Ashraf, I. Ahmad, A. Nisa","doi":"10.3329/bjsir.v57i1.58897","DOIUrl":"https://doi.org/10.3329/bjsir.v57i1.58897","url":null,"abstract":"The worst element in the modern diet is white sugar, which contains the toxic fructose. As a result, many people have started avoiding fructose and switching to fructose-free sweets. Rice Syrup, for example, contains no fructose. White sugar was replaced with clarified rice syrup in this study. At a pilot plant scale, products such as red herbal syrup, chocolate syrup, cardamom syrup, aloe vera syrup, and plum syrup were made utilizing rice syrup in place of white sugar. During the shelf-life study, all parameters, including microbiological, physicochemical and sensory properties, were found acceptable. In addition, at zero weeks and 48 weeks, the effect of storage days on pH, acidity, brix, sugars content, and sensory attribute was determined. During storage, no notable changes in quality metrics were found.\u0000Bangladesh J. Sci. Ind. Res. 57(1), 23-26, 2022","PeriodicalId":8735,"journal":{"name":"Bangladesh Journal of Scientific and Industrial Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49587198","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 : 2022-03-30DOI: 10.3329/bjsir.v57i1.58898
M. Aremu, TC Yashim, H. Ibrahim, E. Adeyeye, M. Omosebi, B. Ablaku
The proximate, amino acid, and mineral compositions of commonly sold steamed bambara groundnut pastes in two different motor parks (SBGM and SBGJ) were investigated using standard procedures and methods. The respective proximate composition values (g/100g sample) of SBGM and SBGJ were: moisture (3.02 and 3.57), ash (7.13 and 7.69), crude fat (14.98 and 18.94), crude protein (21.46 and 19.34), crude fibre (5.90 and 7.34), and carbohydrate by difference (47.53 and 43.14). The most abundant minerals in the samples were potassium (219.63 and 232.86 mg/100g), followed by sodium (164.25 and 158.41 mg/100g). The amino acid profile of the proteins revealed that both samples contained nutritionally beneficialquantities of most essential amino acids. The total essential amino acid (TEAA) (with His) was 42.89 and 45.08g/100g for SBGM and SBGJ samples, respectively. The calculated isoelectric point (pI) and predicted protein efficiency ratio (P-PER) for the samples were (4.22 and 5.18) and (2.08 and 2.45). Valine was the first limiting amino acid in both samples. Bangladesh J. Sci. Ind. Res. 57(1), 27-40, 2022
{"title":"Nutritional quality assessment of commonly sold steamed bambara groundnut (Vigna subterranea L. Verdc) pastes in Lafia motor parks, Nasarawa state, Nigeria","authors":"M. Aremu, TC Yashim, H. Ibrahim, E. Adeyeye, M. Omosebi, B. Ablaku","doi":"10.3329/bjsir.v57i1.58898","DOIUrl":"https://doi.org/10.3329/bjsir.v57i1.58898","url":null,"abstract":"The proximate, amino acid, and mineral compositions of commonly sold steamed bambara groundnut pastes in two different motor parks (SBGM and SBGJ) were investigated using standard procedures and methods. The respective proximate composition values (g/100g sample) of SBGM and SBGJ were: moisture (3.02 and 3.57), ash (7.13 and 7.69), crude fat (14.98 and 18.94), crude protein (21.46 and 19.34), crude fibre (5.90 and 7.34), and carbohydrate by difference (47.53 and 43.14). The most abundant minerals in the samples were potassium (219.63 and 232.86 mg/100g), followed by sodium (164.25 and 158.41 mg/100g). The amino acid profile of the proteins revealed that both samples contained nutritionally beneficialquantities of most essential amino acids. The total essential amino acid (TEAA) (with His) was 42.89 and 45.08g/100g for SBGM and SBGJ samples, respectively. The calculated isoelectric point (pI) and predicted protein efficiency ratio (P-PER) for the samples were (4.22 and 5.18) and (2.08 and 2.45). Valine was the first limiting amino acid in both samples.\u0000Bangladesh J. Sci. Ind. Res. 57(1), 27-40, 2022","PeriodicalId":8735,"journal":{"name":"Bangladesh Journal of Scientific and Industrial Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44560063","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 : 2022-03-30DOI: 10.3329/bjsir.v57i1.58894
M. Sultana, A. Siddika, SS Mahmood, A. Sharmin, S. Tabassum, M. Rahman, M. Bashar
Cu2ZnSnS4 (CZTS) thin films are fabricated on glass substrates using the spray pyrolysis method with different concentrations of Sn content were studied in this research work. All the CZTS thin films are fabricated at substrate temperature 200°C to minimize the formation of secondary phases. Here, we show how the variation in Sn content concentration influences the optical and structural properties of the CZTS thin films. The XRD patterns reveal that the concentration of Sn content has to be optimized to minimize the formation of secondary phases for a fixed substrate temperature. In turn, the band gap of the CZTS films is highly influenced by the formation of secondary phases. We have found that the films prepared from the precursor solution with 1.8 mM concentration of Sn content have the best crystal structure and an optical band gap of 1.55 eV. The CZTS thin films also have good carrier concentrations ranging from 4.2×1019 to 22.9×1020 cm-3. Bangladesh J. Sci. Ind. Res. 57(1), 1-6, 2022
{"title":"Fabrication of Cu2ZnSnS4 (CZTS) thin films by ultrasonic spray pyrolysis at a low substrate temperature and effect of tin concentration on the characteristics of the CZTS thin films","authors":"M. Sultana, A. Siddika, SS Mahmood, A. Sharmin, S. Tabassum, M. Rahman, M. Bashar","doi":"10.3329/bjsir.v57i1.58894","DOIUrl":"https://doi.org/10.3329/bjsir.v57i1.58894","url":null,"abstract":"Cu2ZnSnS4 (CZTS) thin films are fabricated on glass substrates using the spray pyrolysis method with different concentrations of Sn content were studied in this research work. All the CZTS thin films are fabricated at substrate temperature 200°C to minimize the formation of secondary phases. Here, we show how the variation in Sn content concentration influences the optical and structural properties of the CZTS thin films. The XRD patterns reveal that the concentration of Sn content has to be optimized to minimize the formation of secondary phases for a fixed substrate temperature. In turn, the band gap of the CZTS films is highly influenced by the formation of secondary phases. We have found that the films prepared from the precursor solution with 1.8 mM concentration of Sn content have the best crystal structure and an optical band gap of 1.55 eV. The CZTS thin films also have good carrier concentrations ranging from 4.2×1019 to 22.9×1020 cm-3.\u0000Bangladesh J. Sci. Ind. Res. 57(1), 1-6, 2022","PeriodicalId":8735,"journal":{"name":"Bangladesh Journal of Scientific and Industrial Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47608929","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：