Pub Date : 2021-02-11DOI: 10.3329/JESNR.V12I1-2.52033
F. Shikha, M. I. Hossain, M. Ali
It is important to preserve the fish products in proper storage condition until further use. Keeping this point in view, fish stick prepared from silver carp (Hypophthalmichthys molitrix) mince by using different kinds of food additives were stored at refrigeration (5 to 8°C) and frozen temperatures (-18 to -20°C) temperature. The results showed that, on “0” day the sensory quality criteria score was 9.00±0.00a for general appearance which decreased to 8.70±0.39a after 3 days of storage at refrigeration temperature and to 8.49±0.41aat frozen temperature after 56 days of storage. The TVBN values were found 22.54±0.17aand 16.04±0.39a, respectively at refrigeration and frozen temperatures which was 7.84±0.95c on “0” day. The peroxide value of the product on “0” day was 6.19 ± 0.71eand the microbial load was 1.49 x104 CFU/g which reached to 19.94 ± 0.17a, 21.58 ± 0.78a meq/kg and 2.13 x107 CFU/g, 1.12 ×102 CFU/g after storage at refrigeration and frozen temperatures. By observing these results present study could be concluded as-frozen temperature storage is comparatively better than refrigeration temperature for storing minced based ‘ready to cook’ products like fish stick and at this temperature the product can be stored for about 8 weeks. Environ. Sci. & Natural Resources, 12(1&2): 175-180, 2019
{"title":"Storage Effects of Low Temperature on the Quality Parameters of Mince Based Fish Stick Prepared from Silver Carp (Hypophthalmichthys molitrix)","authors":"F. Shikha, M. I. Hossain, M. Ali","doi":"10.3329/JESNR.V12I1-2.52033","DOIUrl":"https://doi.org/10.3329/JESNR.V12I1-2.52033","url":null,"abstract":"It is important to preserve the fish products in proper storage condition until further use. Keeping this point in view, fish stick prepared from silver carp (Hypophthalmichthys molitrix) mince by using different kinds of food additives were stored at refrigeration (5 to 8°C) and frozen temperatures (-18 to -20°C) temperature. The results showed that, on “0” day the sensory quality criteria score was 9.00±0.00a for general appearance which decreased to 8.70±0.39a after 3 days of storage at refrigeration temperature and to 8.49±0.41aat frozen temperature after 56 days of storage. The TVBN values were found 22.54±0.17aand 16.04±0.39a, respectively at refrigeration and frozen temperatures which was 7.84±0.95c on “0” day. The peroxide value of the product on “0” day was 6.19 ± 0.71eand the microbial load was 1.49 x104 CFU/g which reached to 19.94 ± 0.17a, 21.58 ± 0.78a meq/kg and 2.13 x107 CFU/g, 1.12 ×102 CFU/g after storage at refrigeration and frozen temperatures. By observing these results present study could be concluded as-frozen temperature storage is comparatively better than refrigeration temperature for storing minced based ‘ready to cook’ products like fish stick and at this temperature the product can be stored for about 8 weeks. \u0000Environ. Sci. & Natural Resources, 12(1&2): 175-180, 2019","PeriodicalId":15768,"journal":{"name":"Journal of Environmental Science and Natural Resources","volume":"32 1","pages":"175-180"},"PeriodicalIF":0.0,"publicationDate":"2021-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89587795","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 : 2021-02-11DOI: 10.3329/JESNR.V12I1-2.52004
F. Shikha, M. I. Hossain, M. Mansur, N. Nahar
A study was conducted on the proximate composition and heavy metal concentration of Amblypharyngodon mola and Channa punctatus collected from pond water and open water in Mymensingh. The proximate composition analysis result showed -protein, lipid, moisture and ash content (%) of pond water A. mola were 20.26±0.63, 6.70±0.17, 66.40±1.51 and 2.55±0.58, respectively and for the fish caught from open water the values were 19.66±0.75, 5.81±0.18, 63.03±0.82 and 2.92±0.15, respectively. On the other hand, protein, lipid, moisture and ash content (%) of pond water C. punctatus found 23.83±1.07, 5.91±0.11, 64.44±1.87 and 3.23±0.11, respectively whereas the values for the fish caught from open water were 22.21±0.66, 5.43±0.19, 62.73±1.65 and 3.67±0.47, respectively. Arsenic (As) concentration of A. mola was higher in open water fishes (0.23±0.05 μg g-1) than the fishes of pond water (0.14±0.03 μg g-1). Cd concentration of pond water C. punctatus was found 0.21±0.04 μg g-1 whereas open water fishes contained 0.28±0.06 μg g-1. Copper (Cu) concentration of pond water and open water A. mola was 0.27±0.07 μg g-1 and 0.32±0.04 μg g-1, respectively. Heavy metal concentration of A. mola and C. punctatus was within permissible limits except Cd. The result revealed that open water fishes had higher concentration of heavy metals in their muscle than the fishes of pond water.
{"title":"Comparative Study on Proximate Composition and Heavy Metal Concentration of Molacarplet (Amblypharyngodon mola) and Spotted Snakehead (Channa punctatus) Collected from Pond Water and Open Water","authors":"F. Shikha, M. I. Hossain, M. Mansur, N. Nahar","doi":"10.3329/JESNR.V12I1-2.52004","DOIUrl":"https://doi.org/10.3329/JESNR.V12I1-2.52004","url":null,"abstract":"A study was conducted on the proximate composition and heavy metal concentration of Amblypharyngodon mola and Channa punctatus collected from pond water and open water in Mymensingh. The proximate composition analysis result showed -protein, lipid, moisture and ash content (%) of pond water A. mola were 20.26±0.63, 6.70±0.17, 66.40±1.51 and 2.55±0.58, respectively and for the fish caught from open water the values were 19.66±0.75, 5.81±0.18, 63.03±0.82 and 2.92±0.15, respectively. On the other hand, protein, lipid, moisture and ash content (%) of pond water C. punctatus found 23.83±1.07, 5.91±0.11, 64.44±1.87 and 3.23±0.11, respectively whereas the values for the fish caught from open water were 22.21±0.66, 5.43±0.19, 62.73±1.65 and 3.67±0.47, respectively. Arsenic (As) concentration of A. mola was higher in open water fishes (0.23±0.05 μg g-1) than the fishes of pond water (0.14±0.03 μg g-1). Cd concentration of pond water C. punctatus was found 0.21±0.04 μg g-1 whereas open water fishes contained 0.28±0.06 μg g-1. Copper (Cu) concentration of pond water and open water A. mola was 0.27±0.07 μg g-1 and 0.32±0.04 μg g-1, respectively. Heavy metal concentration of A. mola and C. punctatus was within permissible limits except Cd. The result revealed that open water fishes had higher concentration of heavy metals in their muscle than the fishes of pond water.","PeriodicalId":15768,"journal":{"name":"Journal of Environmental Science and Natural Resources","volume":"30 1","pages":"91-99"},"PeriodicalIF":0.0,"publicationDate":"2021-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87383169","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 : 2021-02-11DOI: 10.3329/JESNR.V12I1-2.51983
S. Mahfuza, Hossain, M. Islam
Bangladesh has been facing rapid and unplanned urbanization for last several years resulting devastating change to vegetation, fresh water body and bare soil in this area. This integrated study aimed to find out the trend of urbanization and land cover changes in Chuandanga, a western district of Bangladesh. This downscaled approach used GIS and remote sensing techniques for supervised land cover classification of Landsat images for last five years (2014-2018). The study has portrayed an increasing trend in built up area and bare soil whereas a decreasing trend in vegetation and water body. Meanwhile, it has been found that change in built up area and vegetation cover is strongly correlated whilst built area is increased by 1.28% (14.84 sq.km) and vegetation decreased by 16.54% (191.96 sq.km) during this period. Moreover, it is also observed that rapid growth of urban areas has a considerable influence on decreasing water body and bare soil as well as the changing pattern showing the forthcoming urbanization in this city. This study shows the importance of urban expansion for achieving Sustainable Development Goals (SDG) in particular Goal 11, Sustainable Cities.
{"title":"Impacts of Urbanization on Land Cover Pattern in Bangladesh: A Downscaled Approach for Chuadanga District","authors":"S. Mahfuza, Hossain, M. Islam","doi":"10.3329/JESNR.V12I1-2.51983","DOIUrl":"https://doi.org/10.3329/JESNR.V12I1-2.51983","url":null,"abstract":"Bangladesh has been facing rapid and unplanned urbanization for last several years resulting devastating change to vegetation, fresh water body and bare soil in this area. This integrated study aimed to find out the trend of urbanization and land cover changes in Chuandanga, a western district of Bangladesh. This downscaled approach used GIS and remote sensing techniques for supervised land cover classification of Landsat images for last five years (2014-2018). The study has portrayed an increasing trend in built up area and bare soil whereas a decreasing trend in vegetation and water body. Meanwhile, it has been found that change in built up area and vegetation cover is strongly correlated whilst built area is increased by 1.28% (14.84 sq.km) and vegetation decreased by 16.54% (191.96 sq.km) during this period. Moreover, it is also observed that rapid growth of urban areas has a considerable influence on decreasing water body and bare soil as well as the changing pattern showing the forthcoming urbanization in this city. This study shows the importance of urban expansion for achieving Sustainable Development Goals (SDG) in particular Goal 11, Sustainable Cities.","PeriodicalId":15768,"journal":{"name":"Journal of Environmental Science and Natural Resources","volume":"25 1","pages":"37-42"},"PeriodicalIF":0.0,"publicationDate":"2021-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90327397","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 : 2021-02-11DOI: 10.3329/JESNR.V12I1-2.52005
M. Hossain, F. Shikha, A. Hoque
A study was carried out to observe the growth performance of Indian major carp utilizing the shrimp industry waste in their supplementary diets in pond system during 1st January to 30th June, 2015. Two types of diet namely Diet-1 (Formulated feed with shrimp waste), Diet-2 (Formulated feed with plants source ingredients) were prepared while Diet-3 (Commercial feed) were purchased from the market and assigned to three treatments viz. T1, T2 and T3. Protein percentage of diets were 28.42%, 28.13% and 27.32%, respectively. The water quality parameters of the experimental ponds were monitored at 10 days interval. Diet-1 resulted better growth with Labeo rohita (153.68g), Gibelion catla (170.14g) and Cirrhinus cirrhosus (84.83g) compared to Diet-2 (138.99g, 152.94g, 68.39g respectively). The highest SGR (%/day) value was obtained with Labeo rohita (2.66%/day), Gibelion catla (2.59%/day) and Cirrhinus cirrhosus (2.62%/day) for Diet-3. The average protein efficiency ratio (PER) for Diet-1 (2.19) differed much to that of Diet-2 (2.03) where Diet-3 (2.38) showed highest PER value. The highest survival rate (%) with Labeorohita (93.93%), Gibelioncatla (92.86%) Cirrhinuscirrhosus (94.44%) were found for Diet-3. Therefore, it could be recommended that shrimp industry waste can be replaced with fish meal in the diets of Indian major carps along with other available feed ingredients.
{"title":"Growth Performance of Indian Major Carps at Pond System Using Shrimp Industry Waste in their Diet","authors":"M. Hossain, F. Shikha, A. Hoque","doi":"10.3329/JESNR.V12I1-2.52005","DOIUrl":"https://doi.org/10.3329/JESNR.V12I1-2.52005","url":null,"abstract":"A study was carried out to observe the growth performance of Indian major carp utilizing the shrimp industry waste in their supplementary diets in pond system during 1st January to 30th June, 2015. Two types of diet namely Diet-1 (Formulated feed with shrimp waste), Diet-2 (Formulated feed with plants source ingredients) were prepared while Diet-3 (Commercial feed) were purchased from the market and assigned to three treatments viz. T1, T2 and T3. Protein percentage of diets were 28.42%, 28.13% and 27.32%, respectively. The water quality parameters of the experimental ponds were monitored at 10 days interval. Diet-1 resulted better growth with Labeo rohita (153.68g), Gibelion catla (170.14g) and Cirrhinus cirrhosus (84.83g) compared to Diet-2 (138.99g, 152.94g, 68.39g respectively). The highest SGR (%/day) value was obtained with Labeo rohita (2.66%/day), Gibelion catla (2.59%/day) and Cirrhinus cirrhosus (2.62%/day) for Diet-3. The average protein efficiency ratio (PER) for Diet-1 (2.19) differed much to that of Diet-2 (2.03) where Diet-3 (2.38) showed highest PER value. The highest survival rate (%) with Labeorohita (93.93%), Gibelioncatla (92.86%) Cirrhinuscirrhosus (94.44%) were found for Diet-3. Therefore, it could be recommended that shrimp industry waste can be replaced with fish meal in the diets of Indian major carps along with other available feed ingredients.","PeriodicalId":15768,"journal":{"name":"Journal of Environmental Science and Natural Resources","volume":"72 1","pages":"101-108"},"PeriodicalIF":0.0,"publicationDate":"2021-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83782209","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 : 2021-02-11DOI: 10.3329/JESNR.V12I1-2.52010
N. Sharmin, M. Farukh, S. Sarker, M. Baten
Ecological Footprint (EF) assessment helps to identify what activities are having the biggest impact on nature and opens up possibilities to reduce our impact and live within the means of one planet. The introduction of EF has been very necessary for the context of Bangladesh especially in the industrial areas such Gazipur as the endless demand and the unplanned consumption pattern of the population here have been producing a very unsustainable situation. Thus this study intends to initiate it by calculating the Ecological Footprint of Bangladesh Agricultural Research Institute (BARI), one of the important residential area of Gazipur and major consuming areas of that city as a sustainability indicator. Basic equation for assessing EF has been done according to Nunes et al. (2013). EF has been calculated for these components: energy, food, waste and building material consumption. Questionnaire survey has been conducted to gather information about consumption pattern for different components in the households of BARI residential area. The study also identified consumption of natural gas for household purpose as the most contributing factor in the footprint of BARI residential area followed by waste, building materials and electricity consumption. Environ. Sci. & Natural Resources, 12(1&2): 143-149, 2019
生态足迹(EF)评估有助于确定哪些活动对自然产生了最大的影响，并为减少我们的影响和在一个地球的能力范围内生活提供了可能性。在孟加拉国，特别是在加济布尔这样的工业区，引入EF是非常必要的，因为这里无休止的需求和无计划的消费模式已经造成了一种非常不可持续的局面。因此，本研究打算通过计算孟加拉国农业研究所(BARI)的生态足迹作为可持续性指标来启动它，该研究所是加济浦尔重要的住宅区之一，也是该市的主要消费地区。根据Nunes et al.(2013)，评估EF的基本方程已经完成。能源、食物、废物和建筑材料的消耗是EF的计算标准。通过问卷调查，收集了BARI居住区住户不同组成部分的消费模式信息。该研究还发现，家庭用途的天然气消耗是BARI居民区足迹中最重要的因素，其次是废物、建筑材料和电力消耗。环绕。科学。与自然资源，12(1&2):143-149,2019
{"title":"Analyses of Ecological Footprint at Bangladesh Agricultural Research Institute (BARI) Residential Area","authors":"N. Sharmin, M. Farukh, S. Sarker, M. Baten","doi":"10.3329/JESNR.V12I1-2.52010","DOIUrl":"https://doi.org/10.3329/JESNR.V12I1-2.52010","url":null,"abstract":"Ecological Footprint (EF) assessment helps to identify what activities are having the biggest impact on nature and opens up possibilities to reduce our impact and live within the means of one planet. The introduction of EF has been very necessary for the context of Bangladesh especially in the industrial areas such Gazipur as the endless demand and the unplanned consumption pattern of the population here have been producing a very unsustainable situation. Thus this study intends to initiate it by calculating the Ecological Footprint of Bangladesh Agricultural Research Institute (BARI), one of the important residential area of Gazipur and major consuming areas of that city as a sustainability indicator. Basic equation for assessing EF has been done according to Nunes et al. (2013). EF has been calculated for these components: energy, food, waste and building material consumption. Questionnaire survey has been conducted to gather information about consumption pattern for different components in the households of BARI residential area. The study also identified consumption of natural gas for household purpose as the most contributing factor in the footprint of BARI residential area followed by waste, building materials and electricity consumption. \u0000Environ. Sci. & Natural Resources, 12(1&2): 143-149, 2019","PeriodicalId":15768,"journal":{"name":"Journal of Environmental Science and Natural Resources","volume":"2 1","pages":"143-149"},"PeriodicalIF":0.0,"publicationDate":"2021-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78708123","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 : 2021-02-11DOI: 10.3329/JESNR.V12I1-2.52006
I. Jahan, F. Yasmin, T. Hoque, M. Hossain, M. Abedin
Proper soil fertility management is one of the prime importance in an endeavor to increase crop productivity. Hence, an experiment was conducted at the Soil Science Field Laboratory, BAU, Mymensingh during Aman season of 2017 to investigate the growth and yield performance and rice quality under different fertilizer management. The experiment was laid out in a split plot design with two varieties i.e. (V1) BRRI dhan56 and (V2) BRRI dhan71 in the main plots and four fertilizer treatments such as T1 (Control), T2 (soil test based fertilization), T3 (farmers practice) and T4 (soil test based fertilization and 5 t/ha cowdung) in the subplots with three replications. Results found that, T4 treatment produced the highest grain and straw yield in both varieties. The highest N, P, K, S content (%) and uptake (kgha-1) in both grain and straw were also recorded in T4 treatment. BRRI dhan71 performed better than BRRI dhan56 in terms of yield, nutrient content and uptake. From the combinations of variety x treatment, V2T4 (BRRI dhan71 x Soil test based fertilization and 5 t/ha cowdung) was the best for maintaining rice yield and quality. Therefore, this combination could be recommended with some farmer’s field trials for sustainable rice production without declining soil fertility. Environ. Sci. & Natural Resources, 12(1&2): 109-115, 2019
{"title":"Assessing Yield and Quality of Rice Cultivars (BRRI dhan56 and BRRI dhan71) under Different Fertilizer Management Practices","authors":"I. Jahan, F. Yasmin, T. Hoque, M. Hossain, M. Abedin","doi":"10.3329/JESNR.V12I1-2.52006","DOIUrl":"https://doi.org/10.3329/JESNR.V12I1-2.52006","url":null,"abstract":"Proper soil fertility management is one of the prime importance in an endeavor to increase crop productivity. Hence, an experiment was conducted at the Soil Science Field Laboratory, BAU, Mymensingh during Aman season of 2017 to investigate the growth and yield performance and rice quality under different fertilizer management. The experiment was laid out in a split plot design with two varieties i.e. (V1) BRRI dhan56 and (V2) BRRI dhan71 in the main plots and four fertilizer treatments such as T1 (Control), T2 (soil test based fertilization), T3 (farmers practice) and T4 (soil test based fertilization and 5 t/ha cowdung) in the subplots with three replications. Results found that, T4 treatment produced the highest grain and straw yield in both varieties. The highest N, P, K, S content (%) and uptake (kgha-1) in both grain and straw were also recorded in T4 treatment. BRRI dhan71 performed better than BRRI dhan56 in terms of yield, nutrient content and uptake. From the combinations of variety x treatment, V2T4 (BRRI dhan71 x Soil test based fertilization and 5 t/ha cowdung) was the best for maintaining rice yield and quality. Therefore, this combination could be recommended with some farmer’s field trials for sustainable rice production without declining soil fertility. \u0000Environ. Sci. & Natural Resources, 12(1&2): 109-115, 2019","PeriodicalId":15768,"journal":{"name":"Journal of Environmental Science and Natural Resources","volume":"16 1","pages":"109-115"},"PeriodicalIF":0.0,"publicationDate":"2021-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85810139","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 : 2021-02-11DOI: 10.3329/JESNR.V12I1-2.52040
M. Rashed, T. Hoque, M. Jahangir, M. Hashem
Manganese (Mn) as an essential plant micronutrient affects plant development, when at deficient or toxic levels. Manganese is used in several biological processes as an important contributor in plant growth and development. Manganese uptake depends on forms of Mn in soil solution, crop characteristics including growth rate, and ineteractions with other environmental factors. Its distribution in soils and requirement for crops vary from location to location, depending on soil type and reactions. Despite the metabolic roles of Mn in different plant cell compartments, the importance of Mn requirement in plants, distribution in soils and application to crops has been understated. As a micronutrient, judicious Mn management requires to critically evaluating its concentration in soils, biochemical functions, critical levels, soil availability and interactions with other nutrient elements is essential. This review has critically analysed the existing body of knowledge on Mn distribution in soils, dynamics, functions and management towards better crop production and safe environment.
{"title":"Manganese as a Micronutrient in Agriculture: Crop Requirement and Management","authors":"M. Rashed, T. Hoque, M. Jahangir, M. Hashem","doi":"10.3329/JESNR.V12I1-2.52040","DOIUrl":"https://doi.org/10.3329/JESNR.V12I1-2.52040","url":null,"abstract":"Manganese (Mn) as an essential plant micronutrient affects plant development, when at deficient or toxic levels. Manganese is used in several biological processes as an important contributor in plant growth and development. Manganese uptake depends on forms of Mn in soil solution, crop characteristics including growth rate, and ineteractions with other environmental factors. Its distribution in soils and requirement for crops vary from location to location, depending on soil type and reactions. Despite the metabolic roles of Mn in different plant cell compartments, the importance of Mn requirement in plants, distribution in soils and application to crops has been understated. As a micronutrient, judicious Mn management requires to critically evaluating its concentration in soils, biochemical functions, critical levels, soil availability and interactions with other nutrient elements is essential. This review has critically analysed the existing body of knowledge on Mn distribution in soils, dynamics, functions and management towards better crop production and safe environment.","PeriodicalId":15768,"journal":{"name":"Journal of Environmental Science and Natural Resources","volume":"27 1","pages":"225-242"},"PeriodicalIF":0.0,"publicationDate":"2021-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82126992","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 : 2021-02-11DOI: 10.3329/JESNR.V12I1-2.52034
M. Hossain, F. Shikha, Mursalin
To preserve shrimps, smoking or smoke curing is an ancient methods in practice since long before. The present study was conducted to prepare improved smoked shrimp from 4 different species of raw shrimps, namely Chali (Metapenaeus brevicornis), Chaka (Penaeus indicus), Horina (Metapenaeus monoceros) and Khogda (Parapenaeopsis stylifera) at laboratory condition, to observe the changes in sensory, biochemical and microbiological parameters of the both laboratory and traditionally prepared (at Koyra, Khulna) smoked shrimps of these species. The initial moisture level of improved smoked shrimps (Chali, Chaka, Horina and Khogda) ranged from 14.22±0.02%~16.15±0.03% with the highest value in Khogda, but the moisture content of traditional smoked Chali was 17.53±0.11%. After storage of 120 days the moisture reached to the ranged from 15.12±0.13% to 18.83±0.21%, protein content from initial 61.18± 91%~64.05±0.41% to 52.8 ±51%~57.61±0.84%, lipid content from initial 9.73±0.06%~10.05± 0.06% to 8.55±0.04%~9.10±0.06% and ash contents from initial 11.06±0.14%~16.36±0.08% to 14.28±0.08%~19.11±0.07%. For TVB-N values and microbial load also a same increasing trend was observed for the samples. From the obtained results of the study it could be concluded asimplementation of improved techniques for smoking able to extend the storage period of smoked shrimps and among different packs vacuum sealed pack is the most effective one for storage.
{"title":"Quality Assessment of Smoked Shrimps (Traditional and Improved)Stored at Room Temperature (28 To 32°C) in Different Packs","authors":"M. Hossain, F. Shikha, Mursalin","doi":"10.3329/JESNR.V12I1-2.52034","DOIUrl":"https://doi.org/10.3329/JESNR.V12I1-2.52034","url":null,"abstract":"To preserve shrimps, smoking or smoke curing is an ancient methods in practice since long before. The present study was conducted to prepare improved smoked shrimp from 4 different species of raw shrimps, namely Chali (Metapenaeus brevicornis), Chaka (Penaeus indicus), Horina (Metapenaeus monoceros) and Khogda (Parapenaeopsis stylifera) at laboratory condition, to observe the changes in sensory, biochemical and microbiological parameters of the both laboratory and traditionally prepared (at Koyra, Khulna) smoked shrimps of these species. The initial moisture level of improved smoked shrimps (Chali, Chaka, Horina and Khogda) ranged from 14.22±0.02%~16.15±0.03% with the highest value in Khogda, but the moisture content of traditional smoked Chali was 17.53±0.11%. After storage of 120 days the moisture reached to the ranged from 15.12±0.13% to 18.83±0.21%, protein content from initial 61.18± 91%~64.05±0.41% to 52.8 ±51%~57.61±0.84%, lipid content from initial 9.73±0.06%~10.05± 0.06% to 8.55±0.04%~9.10±0.06% and ash contents from initial 11.06±0.14%~16.36±0.08% to 14.28±0.08%~19.11±0.07%. For TVB-N values and microbial load also a same increasing trend was observed for the samples. From the obtained results of the study it could be concluded asimplementation of improved techniques for smoking able to extend the storage period of smoked shrimps and among different packs vacuum sealed pack is the most effective one for storage.","PeriodicalId":15768,"journal":{"name":"Journal of Environmental Science and Natural Resources","volume":"24 1","pages":"181-190"},"PeriodicalIF":0.0,"publicationDate":"2021-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83835373","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 : 2021-02-11DOI: 10.3329/JESNR.V12I1-2.52036
M. Hossain, F. Shikha, Mmh Murad
Packing has effect on the quality parameters of a food product. Here, studies were conducted to produce premium quality salt-smoke-dried tengra fish (Mystus tengra) by combining the effect of salt and smoke in a smoking kiln. During the study, moisture content in tengra fish fell from an initial value of 77.17% to a range of 18.56% to 29.09%, protein content from 51.36% to a range of 40.54% to 51.36%, lipid content from 16.20% to a range of 6.50% to 16.20% and ash content from 13.40% to a range of 8.17% to 13.40% for salt-smoke-dried products at the end of the storage period. On the other hand, the TVB-N value of fresh fish muscle was obtained 2.90 (mg/100g), pH 6.80 and bacterial load 1.13×104 (CFU/g), with the progress of storage period 180 days which values increased to the range of 28.16 to 29.34 mg/100g, 6.27 to 7.86 and 4.42 ×105to 6.82 x 105CFU/g, respectively. From the obtained results this study could be concluded thatif tengra is salted, smoked and dried properly can be stored at room temperature (26 to 28°C) for about 6 months without major deterioration of the fish and among three packs vacuum pack might be better option for storing salt-smoke-dried tengra.
{"title":"Quality Changes of Salt-Smoke-Dried Tengra (Mystus tengara) during Storage at Room Temperature (28 To 32°C) in Different Packs","authors":"M. Hossain, F. Shikha, Mmh Murad","doi":"10.3329/JESNR.V12I1-2.52036","DOIUrl":"https://doi.org/10.3329/JESNR.V12I1-2.52036","url":null,"abstract":"Packing has effect on the quality parameters of a food product. Here, studies were conducted to produce premium quality salt-smoke-dried tengra fish (Mystus tengra) by combining the effect of salt and smoke in a smoking kiln. During the study, moisture content in tengra fish fell from an initial value of 77.17% to a range of 18.56% to 29.09%, protein content from 51.36% to a range of 40.54% to 51.36%, lipid content from 16.20% to a range of 6.50% to 16.20% and ash content from 13.40% to a range of 8.17% to 13.40% for salt-smoke-dried products at the end of the storage period. On the other hand, the TVB-N value of fresh fish muscle was obtained 2.90 (mg/100g), pH 6.80 and bacterial load 1.13×104 (CFU/g), with the progress of storage period 180 days which values increased to the range of 28.16 to 29.34 mg/100g, 6.27 to 7.86 and 4.42 ×105to 6.82 x 105CFU/g, respectively. From the obtained results this study could be concluded thatif tengra is salted, smoked and dried properly can be stored at room temperature (26 to 28°C) for about 6 months without major deterioration of the fish and among three packs vacuum pack might be better option for storing salt-smoke-dried tengra.","PeriodicalId":15768,"journal":{"name":"Journal of Environmental Science and Natural Resources","volume":"62 1","pages":"191-197"},"PeriodicalIF":0.0,"publicationDate":"2021-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77922655","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 : 2021-02-11DOI: 10.3329/JESNR.V12I1-2.52030
M. Morshed, SB Rahman, Ma Rahman
A survey was conducted to assess the status of rooftop and homestead gardening in Sadar upazila of Bogura in Bangladesh. The study revealed that 66% rooftop gardeners and 70% homestead gardeners preferred gardening for production of healthy and fresh food. According the survey there were about 80 type of plants in rooftop gardens and 87 types in homestead gardens. These plants were fruits (97%), vegetables (86%), flowers (64%), spices (72%), medicinal plants (64%), ornamental plants (23%) and plantation crops (12%). The amount of time they had to invest for gardening ranged from only less than half-an-hour to an hour. About 28% homestead gardeners received training on gardening from GOs and NGOs while most of the rooftop gardeners gained knowledge from agro-based television programs. The study revealed that a very few gardeners (18%) considered rooftop gardening for economic benefit while a remarkable number of homestead gardeners (24%) considered gardening for economic return on top of producing fruits and vegetables for family consumption. Finally this study concluded that both rooftop and homestead gardening can be complementary means for increasing the production and consumption of fresh fruits and vegetables and thus can contribute in achieving food security and safety.
{"title":"Status of Rooftop and Homestead Gardening in Bogura","authors":"M. Morshed, SB Rahman, Ma Rahman","doi":"10.3329/JESNR.V12I1-2.52030","DOIUrl":"https://doi.org/10.3329/JESNR.V12I1-2.52030","url":null,"abstract":"A survey was conducted to assess the status of rooftop and homestead gardening in Sadar upazila of Bogura in Bangladesh. The study revealed that 66% rooftop gardeners and 70% homestead gardeners preferred gardening for production of healthy and fresh food. According the survey there were about 80 type of plants in rooftop gardens and 87 types in homestead gardens. These plants were fruits (97%), vegetables (86%), flowers (64%), spices (72%), medicinal plants (64%), ornamental plants (23%) and plantation crops (12%). The amount of time they had to invest for gardening ranged from only less than half-an-hour to an hour. About 28% homestead gardeners received training on gardening from GOs and NGOs while most of the rooftop gardeners gained knowledge from agro-based television programs. The study revealed that a very few gardeners (18%) considered rooftop gardening for economic benefit while a remarkable number of homestead gardeners (24%) considered gardening for economic return on top of producing fruits and vegetables for family consumption. Finally this study concluded that both rooftop and homestead gardening can be complementary means for increasing the production and consumption of fresh fruits and vegetables and thus can contribute in achieving food security and safety.","PeriodicalId":15768,"journal":{"name":"Journal of Environmental Science and Natural Resources","volume":"104 1","pages":"157-164"},"PeriodicalIF":0.0,"publicationDate":"2021-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80820481","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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