Pub Date : 2022-03-30DOI: 10.3329/bjsir.v57i1.58901
M. Debnath, MM Rahman, S. Islam, PN Nandi
This experiment was conducted at Jute Research Sub Station, Bangladesh Jute Research Institute, Jashore to determine phenology, yield and quality of Tossa jute seed at different sowing times starting from 15 July to 1 October, 2020. Variety O-9897 was used as plant material. Randomized Complete Block Design was followed with 4x3m plot size. Line sowing was practised. The result revealed that phenology, seed yield and quality varied significantly with different sowing dates. The earliest flowering (at 42 days) was observed from the sowing on 1 October and the most delayed flowering (at 89 days) from the sowing on 15 July. Sowing from 15 August to 1 September gave the highest yield with good quality seed. Sowing on 15 August, 2020 required 150 days and sowing on 1 September, 2020 required 139 days for pod maturation. Bangladesh J. Sci. Ind. Res. 57(1), 61-66, 2022
{"title":"Sequel of divergent sowing dates on phenological event with yield and quality of Tossa jute (Corchorus olitorius L.) seed","authors":"M. Debnath, MM Rahman, S. Islam, PN Nandi","doi":"10.3329/bjsir.v57i1.58901","DOIUrl":"https://doi.org/10.3329/bjsir.v57i1.58901","url":null,"abstract":"This experiment was conducted at Jute Research Sub Station, Bangladesh Jute Research Institute, Jashore to determine phenology, yield and quality of Tossa jute seed at different sowing times starting from 15 July to 1 October, 2020. Variety O-9897 was used as plant material. Randomized Complete Block Design was followed with 4x3m plot size. Line sowing was practised. The result revealed that phenology, seed yield and quality varied significantly with different sowing dates. The earliest flowering (at 42 days) was observed from the sowing on 1 October and the most delayed flowering (at 89 days) from the sowing on 15 July. Sowing from 15 August to 1 September gave the highest yield with good quality seed. Sowing on 15 August, 2020 required 150 days and sowing on 1 September, 2020 required 139 days for pod maturation.\u0000Bangladesh J. Sci. Ind. Res. 57(1), 61-66, 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":"41838350","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.v57i1.58899
SS Arshi, Y. Zhao, TT Seyen, EV Vreckem, L. Buelens
Millions of tons of waste cotton textiles are discarded every year while they could have been used for the production of bioethanol as an alternative for fossil fuel. In this study, the potential of cotton as raw material for ethanol production using ionic liquid (IL) pretreatment and acidic pretreatment is examined and compared, along with non-pretreated cotton samples. The study also aims to determine the optimal temperature of ionic liquid pretreatment, for which experiments under three temperatures (95°C, 150°C, and 175°C) were carried out. Subsequently, the pretreated cotton samples were converted to bioethanol via simultaneous saccharification and fermentation (SSF). Ethanol yields resulting from different pretreatment methods (also non-pretreatment) were compared. Findings suggest that ionic liquid pretreatment under 175°C gives the highest ethanol yield, proving it to be a competitive alternative to traditional acid pretreatment widely applied in industry, as well as demonstrating the prospective usage of waste cotton textiles as biomass for the production of renewable biofuel. Bangladesh J. Sci. Ind. Res. 57(1), 41-48, 2022
{"title":"A comparative study between ionic liquid and acidic pretreatment of waste cotton textiles with simultaneous saccharification and fermentation","authors":"SS Arshi, Y. Zhao, TT Seyen, EV Vreckem, L. Buelens","doi":"10.3329/bjsir.v57i1.58899","DOIUrl":"https://doi.org/10.3329/bjsir.v57i1.58899","url":null,"abstract":"Millions of tons of waste cotton textiles are discarded every year while they could have been used for the production of bioethanol as an alternative for fossil fuel. In this study, the potential of cotton as raw material for ethanol production using ionic liquid (IL) pretreatment and acidic pretreatment is examined and compared, along with non-pretreated cotton samples. The study also aims to determine the optimal temperature of ionic liquid pretreatment, for which experiments under three temperatures (95°C, 150°C, and 175°C) were carried out. Subsequently, the pretreated cotton samples were converted to bioethanol via simultaneous saccharification and fermentation (SSF). Ethanol yields resulting from different pretreatment methods (also non-pretreatment) were compared. Findings suggest that ionic liquid pretreatment under 175°C gives the highest ethanol yield, proving it to be a competitive alternative to traditional acid pretreatment widely applied in industry, as well as demonstrating the prospective usage of waste cotton textiles as biomass for the production of renewable biofuel.\u0000Bangladesh J. Sci. Ind. Res. 57(1), 41-48, 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":"44486629","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.v57i1.58895
S. Banik, T. Rabeya, M. Hasan, D. Saha, MS Islam
Production and characterization of bio lubricating base oil from non-edible castor seed oil has been studied. Castor oil was extracted from castor seed by solvent extraction method. KOH catalyzed transesterification process was used to produce bio-lubricating oil. Ethanol was used as alcohol in the transesterification process. Optimum condition for bio-lubricating base oil production was 40% ethanol, 0.45% KOH at 75oC for reaction time of 90 min. and the yield was 98%. Important properties of produced bio-lubricating oil like acid value (0.58 mg KOH/g), flash point (235oC), density (0.890 g/cc), pour point (-15oC) and viscosity (131.90 and 16.5 cSt at 40 and 100 oC respectively) etc. were analyzed. The properties were found to be analogues to conventional commercial lubricating oil. This renewable base oil from castor seed could be an attractive and environment friendly alternative to base oil from petroleum sources. Bangladesh J. Sci. Ind. Res. 57(1), 7-14, 2022
{"title":"Bio-lubricating base oil from castor oil (Ricinous communus)","authors":"S. Banik, T. Rabeya, M. Hasan, D. Saha, MS Islam","doi":"10.3329/bjsir.v57i1.58895","DOIUrl":"https://doi.org/10.3329/bjsir.v57i1.58895","url":null,"abstract":"Production and characterization of bio lubricating base oil from non-edible castor seed oil has been studied. Castor oil was extracted from castor seed by solvent extraction method. KOH catalyzed transesterification process was used to produce bio-lubricating oil. Ethanol was used as alcohol in the transesterification process. Optimum condition for bio-lubricating base oil production was 40% ethanol, 0.45% KOH at 75oC for reaction time of 90 min. and the yield was 98%. Important properties of produced bio-lubricating oil like acid value (0.58 mg KOH/g), flash point (235oC), density (0.890 g/cc), pour point (-15oC) and viscosity (131.90 and 16.5 cSt at 40 and 100 oC respectively) etc. were analyzed. The properties were found to be analogues to conventional commercial lubricating oil. This renewable base oil from castor seed could be an attractive and environment friendly alternative to base oil from petroleum sources.\u0000Bangladesh J. Sci. Ind. Res. 57(1), 7-14, 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":"48754356","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 : 2021-12-29DOI: 10.3329/bjsir.v56i4.57195
M. Amin, Ma Islam, M. Afroz, S. Suh
The study was conducted from November 2017 to May 2018 in the experimental field at Gazipur, Bangladesh to investigate the incidence of sucking pests namely gladiolus thrips Teniothrips simplex, tuberose aphid Aphis craccivora, marigold aphid Neotoxoptera oliveri, and dahlia mealybug Plannococcus citri on their cultivated host plants in relation to temperature, relative humidity and rainfall. Results showed that the abundance of gladiolus thrips, tuberose aphid, marigold aphid and dahlia mealy bug reached the peak in the 3rd week of January, 3rd week of February, 1st week of January and 1st week of February, respectively. Among the weather factors, temperature had significant negative impact on the abundance of gladiolus thrips, marigold aphid and tuberose aphid, whereas rainfall showed significant negative influence only on marigold aphid. Multiple linear regression analysis showed that weather variables collectively predicted 55.9%, 75.9%, 44.5%, and 34.6% abundances of gladiolus thrips, marigold aphid, tuberose aphid and dahlia mealybug, respectively. Bangladesh J. Sci. Ind. Res.56(4), 241-248, 2021
{"title":"Abundance of sucking insect pests on some flowering plants in relation to weather parameters","authors":"M. Amin, Ma Islam, M. Afroz, S. Suh","doi":"10.3329/bjsir.v56i4.57195","DOIUrl":"https://doi.org/10.3329/bjsir.v56i4.57195","url":null,"abstract":"The study was conducted from November 2017 to May 2018 in the experimental field at Gazipur, Bangladesh to investigate the incidence of sucking pests namely gladiolus thrips Teniothrips simplex, tuberose aphid Aphis craccivora, marigold aphid Neotoxoptera oliveri, and dahlia mealybug Plannococcus citri on their cultivated host plants in relation to temperature, relative humidity and rainfall. Results showed that the abundance of gladiolus thrips, tuberose aphid, marigold aphid and dahlia mealy bug reached the peak in the 3rd week of January, 3rd week of February, 1st week of January and 1st week of February, respectively. Among the weather factors, temperature had significant negative impact on the abundance of gladiolus thrips, marigold aphid and tuberose aphid, whereas rainfall showed significant negative influence only on marigold aphid. Multiple linear regression analysis showed that weather variables collectively predicted 55.9%, 75.9%, 44.5%, and 34.6% abundances of gladiolus thrips, marigold aphid, tuberose aphid and dahlia mealybug, respectively.\u0000Bangladesh J. Sci. Ind. Res.56(4), 241-248, 2021 ","PeriodicalId":8735,"journal":{"name":"Bangladesh Journal of Scientific and Industrial Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45284553","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 : 2021-12-29DOI: 10.3329/bjsir.v56i4.57201
S. Masood, A. Nisa, F. Arif, M. Ashraf, S. Ashraf, H. Rehman, S. Hina, I. Ahmad
Cookies are one of the most widely consumed food products that are high in demand worldwide. Based on this fact, an attempt was made to develop the cookies by adding aloe vera gel due to its functional properties. The study was focused on the quality characterization of aloe vera-based cookies in terms of nutritional and sensory attributes. To find out the best formulation, the proximate composition and sensory analysis of biscuits containing 10%, 20% and 30% aloe vera gel were determined. For overall acceptability, cookies with 20% aloe vera gel were found best compared to the cookies containing 20% and 30% aloe vera gel. Aloe vera-based biscuits may also be helpful for most vulnerable populations in developing countries due to their functional properties. Bangladesh J. Sci. Ind. Res.56(4), 293-298, 2021
{"title":"Aloe vera based cookies as a functional food","authors":"S. Masood, A. Nisa, F. Arif, M. Ashraf, S. Ashraf, H. Rehman, S. Hina, I. Ahmad","doi":"10.3329/bjsir.v56i4.57201","DOIUrl":"https://doi.org/10.3329/bjsir.v56i4.57201","url":null,"abstract":"Cookies are one of the most widely consumed food products that are high in demand worldwide. Based on this fact, an attempt was made to develop the cookies by adding aloe vera gel due to its functional properties. The study was focused on the quality characterization of aloe vera-based cookies in terms of nutritional and sensory attributes. To find out the best formulation, the proximate composition and sensory analysis of biscuits containing 10%, 20% and 30% aloe vera gel were determined. For overall acceptability, cookies with 20% aloe vera gel were found best compared to the cookies containing 20% and 30% aloe vera gel. Aloe vera-based biscuits may also be helpful for most vulnerable populations in developing countries due to their functional properties. \u0000Bangladesh J. Sci. Ind. Res.56(4), 293-298, 2021","PeriodicalId":8735,"journal":{"name":"Bangladesh Journal of Scientific and Industrial Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49002576","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 : 2021-12-29DOI: 10.3329/bjsir.v56i4.57199
E. Akande, OW Alawode, OT Owopetu, OO Oyesiji
Robo is a widely consumed Nigeria snack made from local food ingredients. Snacks are often subjectively classified as junk food, possibly because they naturally have little or no nutritional value, and unhealthy snacks consumption are associated with the risk of developing non-communicable diseases. The effects of producing Robo from melon and groundnut seeds at different ratios from 20 to 50% wereevaluated for proximate composition, physicochemical/functional and sensory attributes. The results showed an increase in crude protein (38.56a - 42.8d), crude fiber(15.01±0.014d), fat content (35.20e) and ash content (18.02e), but decreased in moisture content (2.43a - 3.30e). Hardness properties decrease from (240a- 720e). Robo from blends of melon and groundnut seeds have improved sensory attributes in terms of flavour, crispness, taste and overall acceptability, particularly at supplementation of 60% melon and 40% groundnut seeds. Thus, improved Robo will increase consumer’s nutrients intake and prevent health problems associated with snack intake. Bangladesh J. Sci. Ind. Res.56(4), 263-270, 2021
{"title":"Robo from melon seeds and groundnut","authors":"E. Akande, OW Alawode, OT Owopetu, OO Oyesiji","doi":"10.3329/bjsir.v56i4.57199","DOIUrl":"https://doi.org/10.3329/bjsir.v56i4.57199","url":null,"abstract":"Robo is a widely consumed Nigeria snack made from local food ingredients. Snacks are often subjectively classified as junk food, possibly because they naturally have little or no nutritional value, and unhealthy snacks consumption are associated with the risk of developing non-communicable diseases. The effects of producing Robo from melon and groundnut seeds at different ratios from 20 to 50% wereevaluated for proximate composition, physicochemical/functional and sensory attributes. The results showed an increase in crude protein (38.56a - 42.8d), crude fiber(15.01±0.014d), fat content (35.20e) and ash content (18.02e), but decreased in moisture content (2.43a - 3.30e). Hardness properties decrease from (240a- 720e). Robo from blends of melon and groundnut seeds have improved sensory attributes in terms of flavour, crispness, taste and overall acceptability, particularly at supplementation of 60% melon and 40% groundnut seeds. Thus, improved Robo will increase consumer’s nutrients intake and prevent health problems associated with snack intake. \u0000Bangladesh J. Sci. Ind. Res.56(4), 263-270, 2021","PeriodicalId":8735,"journal":{"name":"Bangladesh Journal of Scientific and Industrial Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47389324","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 : 2021-12-29DOI: 10.3329/bjsir.v56i4.57196
M. Rahman, A. Khan, A. Akanda
An investigation was conducted to search antagonistic bacteria as biological control agents of soft rotting bacterial pathogen of onion (Allium cepa L.) in vitro and in storage. Antibacterial activity of previously isolated 91 bacterial isolates was tested in vitro against onion soft rot bacteria Burkholderia cepacia O-15. Two isolates namely, R-15 and E-37 were found antagonistic against onion soft rot bacteria. Isolate R-15 was identified as the genus Bacillus and the isolate E-37 to Lactobacillus sp. Isolate R-15 proved to be a strong antagonist against onion soft rot bacteria was selected for bio-control of onion in storage. That was also effectively reduces the soft rot disease of onion in storage condition. Percentage of disease reduction (PDR) due to treatment with antagonistic bacteria was 72.4% compared to untreated control. It is therefore suggested that this isolate could be exploited as biocontrol agent for onion soft rot in Bangladesh. Bangladesh J. Sci. Ind. Res.56(4), 231-240, 2021
{"title":"Biological Control of soft rot bacteria of onion in Bangladesh","authors":"M. Rahman, A. Khan, A. Akanda","doi":"10.3329/bjsir.v56i4.57196","DOIUrl":"https://doi.org/10.3329/bjsir.v56i4.57196","url":null,"abstract":"An investigation was conducted to search antagonistic bacteria as biological control agents of soft rotting bacterial pathogen of onion (Allium cepa L.) in vitro and in storage. Antibacterial activity of previously isolated 91 bacterial isolates was tested in vitro against onion soft rot bacteria Burkholderia cepacia O-15. Two isolates namely, R-15 and E-37 were found antagonistic against onion soft rot bacteria. Isolate R-15 was identified as the genus Bacillus and the isolate E-37 to Lactobacillus sp. Isolate R-15 proved to be a strong antagonist against onion soft rot bacteria was selected for bio-control of onion in storage. That was also effectively reduces the soft rot disease of onion in storage condition. Percentage of disease reduction (PDR) due to treatment with antagonistic bacteria was 72.4% compared to untreated control. It is therefore suggested that this isolate could be exploited as biocontrol agent for onion soft rot in Bangladesh.\u0000Bangladesh J. Sci. Ind. Res.56(4), 231-240, 2021 ","PeriodicalId":8735,"journal":{"name":"Bangladesh Journal of Scientific and Industrial Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45655312","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 : 2021-12-29DOI: 10.3329/bjsir.v56i4.57202
H. N. Naseem Akhtar, M. Ehsan
The aim of this study is to check the redox behavior of Mn (II) and Zn (II) metals before and after interaction with ciprofloxacin in potassium chloride solution by using cyclic voltammetry, chronoamperomety and chronocoulometry methods. Equimolar solutions of Mn (II) and ciprofloxacin were mixed to a ratio of 1:2 and that of Zn (II) and ciprofloxacin to a 1:1 ratio. The results showed that the redox couple involved in Mn (II) as well as Mn(II)-ciprofloxacin interaction systems are quasi-reversible. However, the Zn (II) systems showed reversibility and the Zn(II)-ciprofloxacin interaction was quasi-reversible. The results obtained from the chronoamperometric study showed that after interaction with ciprofloxacin the rate of electrolysis in the metal systems decreased. Bangladesh J. Sci. Ind. Res.56(4), 285-292, 2021
{"title":"Interaction of Mn(II) and Zn(II) with ciprofloxacin antibiotics","authors":"H. N. Naseem Akhtar, M. Ehsan","doi":"10.3329/bjsir.v56i4.57202","DOIUrl":"https://doi.org/10.3329/bjsir.v56i4.57202","url":null,"abstract":"The aim of this study is to check the redox behavior of Mn (II) and Zn (II) metals before and after interaction with ciprofloxacin in potassium chloride solution by using cyclic voltammetry, chronoamperomety and chronocoulometry methods. Equimolar solutions of Mn (II) and ciprofloxacin were mixed to a ratio of 1:2 and that of Zn (II) and ciprofloxacin to a 1:1 ratio. The results showed that the redox couple involved in Mn (II) as well as Mn(II)-ciprofloxacin interaction systems are quasi-reversible. However, the Zn (II) systems showed reversibility and the Zn(II)-ciprofloxacin interaction was quasi-reversible. The results obtained from the chronoamperometric study showed that after interaction with ciprofloxacin the rate of electrolysis in the metal systems decreased. Bangladesh J. Sci. Ind. Res.56(4), 285-292, 2021","PeriodicalId":8735,"journal":{"name":"Bangladesh Journal of Scientific and Industrial Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45083972","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 : 2021-12-29DOI: 10.3329/bjsir.v56i4.57194
M. Hossain, Mmh Khan, RS Prattaya, MH Yasmin, M. Khatun
The present study aimed to determine the trace amount of iron by using highly selective and sensitive spectrophotometric reagents in water, food, and pharmaceutical samples. For this, as-triazine containing ferroin-yielding chromogens; 3-(2-pyridyl)-5,6-diphenyl-1,2,4-triazine (PDT) and 3-(2-pyridyl)-5,6-bis(p-methoxyphenyl)-1,2,4-triazine (PBMPT) have been synthesized. The absorptiometric characteristics of the iron(II) complexes with PDT and PBMPT such as complex formation, sensitivity determination, composition determination have also been studied. It has been observed that these highly sensitive and selective ferroin-yielding reagents act as bidentate ligands and form intensive colored tris-complexes with iron(II) ions. The application of these spectrophotometric reagents for the determination of iron in water, food, and pharmaceutical samples has been described. Bangladesh J. Sci. Ind. Res.56(4), 299-306, 2021
{"title":"Spectrophotometric determination of trace amount of iron in water, food, and pharmaceutical samples","authors":"M. Hossain, Mmh Khan, RS Prattaya, MH Yasmin, M. Khatun","doi":"10.3329/bjsir.v56i4.57194","DOIUrl":"https://doi.org/10.3329/bjsir.v56i4.57194","url":null,"abstract":"The present study aimed to determine the trace amount of iron by using highly selective and sensitive spectrophotometric reagents in water, food, and pharmaceutical samples. For this, as-triazine containing ferroin-yielding chromogens; 3-(2-pyridyl)-5,6-diphenyl-1,2,4-triazine (PDT) and 3-(2-pyridyl)-5,6-bis(p-methoxyphenyl)-1,2,4-triazine (PBMPT) have been synthesized. The absorptiometric characteristics of the iron(II) complexes with PDT and PBMPT such as complex formation, sensitivity determination, composition determination have also been studied. It has been observed that these highly sensitive and selective ferroin-yielding reagents act as bidentate ligands and form intensive colored tris-complexes with iron(II) ions. The application of these spectrophotometric reagents for the determination of iron in water, food, and pharmaceutical samples has been described.\u0000Bangladesh J. Sci. Ind. Res.56(4), 299-306, 2021 ","PeriodicalId":8735,"journal":{"name":"Bangladesh Journal of Scientific and Industrial Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43583392","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 : 2021-12-29DOI: 10.3329/bjsir.v56i4.57198
A. Nisa, S. Abidi, Qurat ul Ain Syed, A. Saeed, S. Masood, S. Hina, H. Rehman
The objective of this study was to estimate total aflatoxin in bird feed. Total 50 birds feed samples were collected from different markets and birds shops in Lahore. Total aflatoxin B1, B2, G1, and G2 were estimated using the Thin Layer Chromatography (TLC) method. The daily intake of aflatoxin in bird's feed is a 300ppb threshold by FDA. Total 50 samples were examined, among them 22% were contaminated with aflatoxin B1 and B2 and the rest of 40% samples were contaminated only with aflatoxin B1. Aflatoxin G1 and G2 were not detected in any feed. The results showed that 42% of samples were contaminated within the permissible limit, 20% were unfit due to having above the allowable limit, and 38% were fit, which did not show any aflatoxin. The current study has demonstrated the easy way of providing the determination of aflatoxin in bird’s feed. Bangladesh J. Sci. Ind. Res.56(4), 249-254, 2021
{"title":"Aflatoxins in bird feed collected from various areas of Lahore city","authors":"A. Nisa, S. Abidi, Qurat ul Ain Syed, A. Saeed, S. Masood, S. Hina, H. Rehman","doi":"10.3329/bjsir.v56i4.57198","DOIUrl":"https://doi.org/10.3329/bjsir.v56i4.57198","url":null,"abstract":"The objective of this study was to estimate total aflatoxin in bird feed. Total 50 birds feed samples were collected from different markets and birds shops in Lahore. Total aflatoxin B1, B2, G1, and G2 were estimated using the Thin Layer Chromatography (TLC) method. The daily intake of aflatoxin in bird's feed is a 300ppb threshold by FDA. Total 50 samples were examined, among them 22% were contaminated with aflatoxin B1 and B2 and the rest of 40% samples were contaminated only with aflatoxin B1. Aflatoxin G1 and G2 were not detected in any feed. The results showed that 42% of samples were contaminated within the permissible limit, 20% were unfit due to having above the allowable limit, and 38% were fit, which did not show any aflatoxin. The current study has demonstrated the easy way of providing the determination of aflatoxin in bird’s feed. \u0000Bangladesh J. Sci. Ind. Res.56(4), 249-254, 2021","PeriodicalId":8735,"journal":{"name":"Bangladesh Journal of Scientific and Industrial Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44877355","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}
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