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Pattern of Youths Migration and its Implications on Cereal Crop Farmers in Kwara State, Nigeria 尼日利亚夸拉州青年迁移模式及其对谷物种植户的影响
Pub Date : 2022-01-01 DOI: 10.5455/jbau.140898
M. Ibrahim, A. Mohammed, I. Salihu, U. Mohammed
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引用次数: 0
Insights of Handloom Producers of Sirajganj District in Bangladesh 孟加拉Sirajganj地区手摇织机生产者的见解
Pub Date : 2022-01-01 DOI: 10.5455/jbau.129305
A. Islam, S. Haque, M. Parvin, S. Nazu, Nafisa Zaman, Masoume Salman, M. Hossain
This study was undertaken to measure the current socioeconomic and profitability status of the traditional handloom producers living in Sirajganj district of Bangladesh. Primary data were collected from 60 randomly selected handloom owners. Two main products were considered in this study, i.e., sharee and gamcha . Descriptive statistics and cost-return analysis were performed to assess the present situation and profitability of handloom production. The Gini Coefficient and Lorenz Curve measured inequality among respondents. A log transformed multiple linear regression model was applied to explore the factors influencing handloom products production. Results revealed that most of the handloom weaving was financed through the weavers’ own capital and taking loans from the bank. The undiscounted benefit-cost ratios were 1.12 and 1.20 for sharee and gamcha, respectively, indicating both enterprises were profitable but gamcha was more profitable than sharee. The Gini Coefficient of handloom weavers’ income is less than 0.25. Results from the regression analysis revealed that human labour, yarn, color, and processing cost significantly impacted sharee and gamcha production. Therefore, efficient utilization of these resources in the production process of handloom products would be essential that can bring more profit for handloom production.
本研究旨在衡量孟加拉国Sirajganj地区传统手摇织机生产者目前的社会经济和盈利状况。主要数据收集自随机抽取的60位手摇织机拥有者。本研究主要考虑两种产品,即香树和甘茶。通过描述性统计和成本回报分析对手摇织机生产的现状和盈利能力进行了评估。基尼系数和洛伦兹曲线衡量了受访者之间的不平等程度。采用对数变换多元线性回归模型对手摇织机产品生产的影响因素进行了分析。结果表明,手工织布机织造活动的资金来源多为自有资金和银行贷款。未折现的收益成本比分别为1.12和1.20,说明两家企业都是盈利的,但gamcha比share更盈利。手摇织机织工收入的基尼系数小于0.25。回归分析结果显示,人力、纱线、颜色和加工成本显著影响了沙利和甘茶的生产。因此,在手摇织机产品的生产过程中,这些资源的有效利用是至关重要的,可以为手摇织机生产带来更多的利润。
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引用次数: 0
Evaluation of Suitable Sowing Window to Fit Wheat after Transplant Aman Rice in the Medium Highland of Southwestern Coastal Bangladesh 孟加拉国西南沿海中高地小麦转种后安曼稻适宜播期评价
Pub Date : 2022-01-01 DOI: 10.5455/jbau.3829
B. Sarker, M. Islam, M. Kabir
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引用次数: 1
Effects of soil amendments using potassium in elevating resistance against wheat blast disease 钾肥土壤改良剂对小麦稻瘟病抗病性的影响
Pub Date : 2022-01-01 DOI: 10.5455/jbau.42442
M. Sarker, M. Uddin, M. Kashem, M. Rahman, I. Ahmed, K. Mohiuddin
Potassium (K) is unique among the essential nutrient elements for its diversified role in plant metabolic processes. Potassium improves crop output, protects the crop from diseases and insect-pest infestation, prevents lodging, and reduces the effects of terminal heat stress. Based on this information, it was hypothesized that K will enhance host plant resistance and blast control while increasing yields. A pot experiment was conducted by artificially inoculating Magnaporthe oryzae Triticum (MoT) on a susceptible wheat (Triticum aestivum L.) variety (BARI Gom-26) to determine the effect of soil application of K on blast disease management and the growth and yield. The experiment was carried out in separate plastic pots containing 18kg of virgin soil at the net house of the farm of the Bangladesh Institute of Nuclear Agriculture headquarters, Mymensingh, for two growing seasons of 2018-19 and 2019-20 following a completely randomized design with five treatments and three replications. The dose for soil application were 0, 50, 75, 100 and 125 K kg ha-1, respectively. Disease incidence (%) and severity (%) of wheat blast were evaluated at 11, 13 and 15 days after inoculation (DAI). At 15 DAI, the highest disease incidence (95.45%) was found in absolute control followed by K0 (0 kg K ha−1) (91.98%) and the lowest blast incidence (64.49%) was found in K4 (125kg K ha−1) which was statistically similar with K3 (100kg K ha−1) (70.87%). At 15 DAI, the highest blast severity matrix (90%) was found in absolute control followed by K0 (0 kg K ha−1) (76.02%) and the lowest blast incidence (46.18%) was found in K4 (125kg K ha−1) which was significantly different with others. Among the treatments, 125 kg K ha-1 produced the highest grain yield (26.97 g pot-1) and the lowest (5.79 g pot-1) was found from the absolute control. Flag leaf samples were randomly collected before head emergence from each pot and analyzed in the laboratory for plant nutrient content. The K concentration of flag leaves sample ranged from 1.71% to 5.51% with the average concentration of 3.02%, where the highest K content (%) was recorded in K4 (5.51%) and the lowest was found in absolute control (1.71%). Potassium fertilization appeared to reduce the severity and improve yield of wheat. Correlations suggested that improving dry matter production and K uptakes at the boot stage by K fertilization can reduce severity later in the growing season and increase wheat grain yield. It can be concluded that high K concentration on leaf tissue was important to decrease wheat blast symptom.
钾在植物代谢过程中发挥着多种多样的作用,在必需营养元素中具有独特的地位。钾提高作物产量,保护作物免受病虫害侵害,防止倒伏,并减少终端热应激的影响。基于这些信息,我们推测K在提高产量的同时还能增强寄主植株的抗性和抗稻瘟病能力。采用盆栽试验方法,人工接种稻瘟病病菌(Magnaporthe oryzae Triticum, MoT)在小麦(Triticum aestivum L.) BARI Gom-26上,研究土壤施钾对稻瘟病管理及生长和产量的影响。试验在2018-19和2019-20两个生长季节进行,试验采用完全随机设计,5个处理,3个重复。试验在孟加拉国核农业研究所总部Mymensingh农场的网棚里,在单独的塑料罐中装有18公斤的原生土。土壤施用剂量分别为0、50、75、100和125 K kg ha-1。接种后11、13、15 d测定小麦稻瘟病的发病率(%)和严重程度(%)。15 DAI时,绝对对照发病率最高(95.45%),其次是K0 (0 kg kha−1)(91.98%),K4 (125kg kha−1)发病率最低(64.49%),与K3 (100kg kha−1)(70.87%)差异有统计学意义。在15 DAI时,绝对对照的爆炸强度矩阵最高(90%),其次是K0 (0 kg K ha−1)(76.02%),K4 (125kg K ha−1)的爆炸发生率最低(46.18%),两者差异有统计学意义。从绝对对照来看,125 kg K ha-1处理籽粒产量最高(26.97 g -1),最低(5.79 g -1)。每盆抽穗前随机采集旗叶样本,在实验室进行植物营养成分分析。旗叶样品钾含量范围为1.71% ~ 5.51%,平均为3.02%,其中K4钾含量最高(5.51%),绝对对照最低(1.71%)。施钾可以减轻小麦的严重程度,提高产量。相关分析表明,在孕穗期通过钾肥提高干物质产量和钾吸收,可以降低生长季后期的严重程度,提高小麦产量。由此可见,叶片组织高浓度钾对减轻小麦瘟病症状有重要作用。
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引用次数: 0
Prediction of SPAD values for paddy leaves using smartphone-based direct contact imaging method 基于智能手机的直接接触成像方法预测水稻叶片SPAD值
Pub Date : 2022-01-01 DOI: 10.5455/jbau.100059
H. Haider, Tanzila Ritu, M. Zubaer, M.r Alam, M. Islam, Anisur Rahman
The Soil Plant Analysis Development (SPAD) value obtained from the SPAD meter is directly related to leaf chlorophyll content. The chlorophyll content is related to nitrogen content means the amount of fertilizer of a crop. Therefore, determining SPAD value is directly involved with crop health. Minolta SPAD meter can directly measure this value, and this is a well-established method in the research field for measuring chlorophyll content. Still, this instrument is too costly, which is beyond a farmers’ reach in the perspective of Bangladesh. The purpose of this study is to predict the SPAD value for paddy leaves using the smartphone-based direct contact imaging method to estimate the chlorophyll content of a paddy leaf. Numerous features were extracted from each image to predict the SPAD values. The features were then used as parameters in the multiple linear regression model. The models' performance was evaluated using images captured from a paddy field using a Minolta SPAD-502 Chlorophyll Meter. The multiple linear regression model's R2 and root mean square error (RMSE) values were 0.71 and 3.6512, respectively. Therefore, this result confirms that the direct digital contact imaging method has the potential to quantify the SPAD value of paddy leaves accurately. However, these results could be more accurate if the image acquisition was made from the seedling to mature stage of the paddy. In the future, an android app will be developed using this value which can directly measure the chlorophyll content of paddy leaves.
土壤植物分析发育(SPAD)值与叶片叶绿素含量直接相关。叶绿素含量与氮含量有关,氮含量意味着作物的肥料量。因此,SPAD值的确定直接关系到作物的健康。美能达SPAD仪可直接测量该值,是目前研究领域较为完善的测量叶绿素含量的方法。然而,这种工具过于昂贵,从孟加拉国的角度来看,这超出了农民的承受能力。本研究的目的是利用基于智能手机的直接接触成像方法预测水稻叶片的SPAD值,以估计水稻叶片的叶绿素含量。从每张图像中提取大量特征来预测SPAD值。然后将特征用作多元线性回归模型的参数。使用美能达SPAD-502叶绿素仪从稻田捕获的图像来评估模型的性能。多元线性回归模型的R2为0.71,均方根误差(RMSE)为3.6512。因此,该结果证实了直接数字接触成像方法具有准确量化水稻叶片SPAD值的潜力。然而,如果从水稻苗期到成熟期进行图像采集,这些结果可能更准确。未来,将利用该值开发android应用程序,可以直接测量水稻叶片的叶绿素含量。
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引用次数: 0
The Response of Lentil (Lens culinaris Medik.) to Variety and Water Management under Old Brahmaputra Floodplain Soil of Bangladesh 孟加拉国旧雅鲁藏布江漫滩土壤下扁豆(Lens culinaris Medik.)对品种和水分管理的响应
Pub Date : 2022-01-01 DOI: 10.5455/jbau.140209
M. Alam, A. Hasan, M. Kader, M. Uddin, Ripa Chowhan, U. Sarker
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引用次数: 0
Influence of precooling systems on postharvest quality and shelf life of dragon fruits (Hylocereus polyrhizus) 预冷系统对火龙果采后品质和货架期的影响
Pub Date : 2022-01-01 DOI: 10.5455/jbau.63376
Zumana Khatun, P. Dash, M. Mannan
Postharvest loss management has attained the main concern in the current world for the growing population and to ensure global food security. As a non-climacteric fruit, proper postharvest management is vital for dragon fruits in the context of decreasing postharvest losses and extending shelf life. A factorial experiment consisting of three locations (Tala, Dumuria, Keshobpur), and three precooling systems (without cooling, hydro cooling, CoolBot-AC cooling) was conducted to evaluate physico-chemical quality attributes of dragon fruits. The results showed that physico-chemical quality attributes were significantly influenced by precooling systems in which the CoolBot-AC cooling system significantly reduced weight loss by more than 9 % and extended shelf life by more than 2.5 days. Of the three-precooling system, the CoolBot-AC system significantly performed better resulting in higher flesh weight, flesh and pericarp ratio, edible portion, moisture, and dry matter content over other precooling systems. Similarly, CoolBot-AC precooling system performed pointedly better than other precooling systems and retained acceptable skin colour, firmness, high levels of TSS content, 12.03 % more anthocyanins, 30.73 % more flavonoid, 32.55 % more total phenols, 24.22 % more carotenoid, and high levels of ascorbic acid content. No statistical variation was documented among locations with a few exceptions. Therefore, the results indicated that CoolBot-AC precooling system could be an effective postharvest management strategy for prolonging shelf life and reducing postharvest losses of dragon fruit.
收获后损失管理已成为当今世界对不断增长的人口和确保全球粮食安全的主要关切。火龙果作为一种非更年期水果,合理的采后管理对于减少采后损失和延长货架期至关重要。在Tala、Dumuria、Keshobpur 3个产地和3种预冷系统(无冷、水冷、CoolBot-AC冷)对火龙果的理化品质属性进行了评价。结果表明,预冷系统对其理化品质属性有显著影响,其中CoolBot-AC冷却系统显著减少了9%以上的失重,延长了2.5天以上的保质期。在三种预冷系统中,CoolBot-AC系统显著优于其他预冷系统,其果肉重量、果肉和果皮比、可食用部分、水分和干物质含量均高于其他预冷系统。同样,CoolBot-AC预冷系统的表现明显优于其他预冷系统,并保持了可接受的皮肤颜色,紧致度,高水平的TSS含量,高出12.03%的花青素,30.73%的类黄酮,32.55%的总酚,24.22%的类胡萝卜素和高水平的抗坏血酸含量。除少数例外情况外,各地点之间没有统计差异。因此,CoolBot-AC预冷系统是一种有效的火龙果采后管理策略,可以延长火龙果的货架期,减少其采后损失。
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引用次数: 0
EVALUATION OF SOLAR TUNNEL DRYER FOR DRYING OF CABBAGE 太阳能隧道干燥机在白菜干燥中的应用评价
Pub Date : 2022-01-01 DOI: 10.5455/jbau.102921
Tanjima Akhter, Tafura Sharna, C. Saha, M. Alam
Drying is an effective means of reducing moisture content of perishable fruit and vegetables to a safe storage level and reduce post harvest loss. This study was conducted to evaluate a solar tunnel dryer for drying cabbage in comparison to traditional open sun drying at the advanced drying lab of the Department of Farm Power and Machinery, Bangladesh Agricultural University, Mymensingh. Salt pre-treated cabbage was used for drying inside the dryer and open sun drying. The parameters like solar radiation, temperature, relative humidity, and moisture content were measured using standard instruments during the experiments. The results showed that the maximum peak temperature inside the drying chamber was 45 °C during mid-day (12 pm) when solar radiation was 600 w/m2 and in an average inside temperature was approximately 30°C to 40°C in a full sunny day (9:00 AM to 04:00 PM) when average solar radiation was 321±115 W/m2. The moisture content of sliced cabbage was reduced initially 94.42, 90.18, and 92.24 % (w.b.) to 4.85, 15.84, and 15.71% (w.b.), and drying time of the dryer was 28, 21, and 19 hours in 1st, 2nd, and 3rd trials, respectively. The drying rate and drying efficiency were found 0.15 kg/hr. and 8.22 %, respectively in tunnel dryer and 0.02 kg/hr. and 3.38 %, respectively in open sun drying. The color and texture of the solar tunnel dried cabbage were better than the open sun drying method. Further experiments are required for estimating drying capacity with the operating cost of the solar tunnel dryer when the dryer will be used with its full capacity.
干燥是将易腐水果和蔬菜的水分含量降低到安全储存水平,减少收获后损失的有效手段。本研究在Mymensingh孟加拉国农业大学农业动力与机械系先进干燥实验室进行,以评估太阳能隧道干燥机干燥卷心菜与传统开放式日光干燥的比较。采用盐预处理白菜进行室内干燥和露天晒干。实验过程中使用标准仪器测量太阳辐射、温度、相对湿度和水分含量等参数。结果表明:当太阳辐射为600 w/m2时,正午(中午12点)干燥室内最高温度为45℃;当太阳辐射为321±115 w/m2时,全日(上午9:00 ~下午04:00)干燥室内平均温度约为30℃~ 40℃。在第1、2、3次试验中,白菜片的含水率分别从最初的94.42%、90.18%和92.24%降低至4.85%、15.84%和15.71%,干燥时间分别为28、21和19小时。干燥速率为0.15 kg/hr,干燥效率为0.15 kg/hr。隧道式干燥机为8.22%,0.02 kg/hr。露天晒干,分别为3.38%。日光隧道晒白菜的色泽和质地均优于露天晒法。当太阳能隧道干燥器满负荷使用时,需要进一步的实验来估算干燥容量和运行成本。
{"title":"EVALUATION OF SOLAR TUNNEL DRYER FOR DRYING OF CABBAGE","authors":"Tanjima Akhter, Tafura Sharna, C. Saha, M. Alam","doi":"10.5455/jbau.102921","DOIUrl":"https://doi.org/10.5455/jbau.102921","url":null,"abstract":"Drying is an effective means of reducing moisture content of perishable fruit and vegetables to a safe storage level and reduce post harvest loss. This study was conducted to evaluate a solar tunnel dryer for drying cabbage in comparison to traditional open sun drying at the advanced drying lab of the Department of Farm Power and Machinery, Bangladesh Agricultural University, Mymensingh. Salt pre-treated cabbage was used for drying inside the dryer and open sun drying. The parameters like solar radiation, temperature, relative humidity, and moisture content were measured using standard instruments during the experiments. The results showed that the maximum peak temperature inside the drying chamber was 45 °C during mid-day (12 pm) when solar radiation was 600 w/m2 and in an average inside temperature was approximately 30°C to 40°C in a full sunny day (9:00 AM to 04:00 PM) when average solar radiation was 321±115 W/m2. The moisture content of sliced cabbage was reduced initially 94.42, 90.18, and 92.24 % (w.b.) to 4.85, 15.84, and 15.71% (w.b.), and drying time of the dryer was 28, 21, and 19 hours in 1st, 2nd, and 3rd trials, respectively. The drying rate and drying efficiency were found 0.15 kg/hr. and 8.22 %, respectively in tunnel dryer and 0.02 kg/hr. and 3.38 %, respectively in open sun drying. The color and texture of the solar tunnel dried cabbage were better than the open sun drying method. Further experiments are required for estimating drying capacity with the operating cost of the solar tunnel dryer when the dryer will be used with its full capacity.","PeriodicalId":15283,"journal":{"name":"Journal of Bangladesh Agricultural University","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83327880","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}
引用次数: 0
Effects of caponization on growth performance and certain particulars in domestic chicken (Gallus domesticus) cockerels 皂化对家鸡公鸡生长性能及某些性状的影响
Pub Date : 2022-01-01 DOI: 10.5455/jbau.2840
M. Hossain, M. Munif, M. Alam
This study was conducted to assess the impacts of caponization on feed intake, comb height, carcass weight and weight of particular visceral organs (i.e., liver, spleen and adrenal gland) in domestic chicken (Gallus domesticus) cockerels. Twenty (20) apparently healthy cockerels were randomly selected and equally distributed into two groups: Group I (control group) and Group II (experimental group). The cockerels in both groups were carefully reared and provided with formulated feed during the research. For Group II, the 8-week-old birds were caponized, and further the capons were slaughtered at 16 weeks of age for conducting this study. In both groups, daily feed intake (g) and body weight (kg) of the cockerels were recorded at 8, 10, 12, 14 and 16 weeks of age, while the comb height (mm) of the birds were recorded at 8, 12 and 16 weeks of age; and the weight (g) of leg, breast, liver, spleen and adrenal gland were recorded at only 16 weeks of age. The body weight, daily feed intake, and weight of leg, breast, liver, spleen and adrenal gland were significantly (P<0.05) increased mostly at 14-16 weeks of age in Group II. On the contrary, the comb heights were significantly (P<0.05) decreased at 12-16 weeks of age in Group II than Group I. These findings indicated that caponization was effective to promote growth performance influencing the meat production and particular physical traits in domestic cockerels.
本试验旨在评估皂角化对家鸡(Gallus domesticus)小公鸡采食量、鸡冠高度、胴体重和特定内脏器官(肝脏、脾脏和肾上腺)重量的影响。选取身体健康的小公鸡20只,随机分为ⅰ组(对照组)和ⅱ组(试验组)。研究期间,对两组小公鸡进行精心饲养,并饲喂配方饲料。第二组在8周龄时进行阉鸡,在16周龄时屠宰阉鸡。分别记录8、10、12、14、16周龄雏鸡日采食量(g)和体重(kg),记录8、12、16周龄雏鸡鸡冠高度(mm);16周龄时,记录大鼠腿、胸、肝、脾、肾上腺的重量(g)。ⅱ组体重、日采食量以及腿、胸、肝、脾和肾上腺重量在14 ~ 16周龄显著(P<0.05)升高。12-16周龄时,第二组鸡冠高度显著低于第一组(P<0.05),说明皂角化能有效促进家公鸡的生长性能,影响肉品产量和某些生理性状。
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引用次数: 1
Efficacy of Tamarind Pulp on Quality Assessment and Storage Stability of Brinjal Pickle 罗望子果肉对茄子泡菜品质评价及贮藏稳定性的影响
Pub Date : 2022-01-01 DOI: 10.5455/jbau.100282
F. Akter, Lopa Aunsary, K. Sayed, M. Islam
The present study was to optimize the brinjal pickle development process and investigate the effect of tamarind pulp on the nutritional, sensory qualities, and storage stability of brinjal pickles. The fresh brinjal and tamarind pulp were analyzed for nutritional composition. Developed brinjal pickles incorporation with tamarind pulp were analyzed for nutritional composition, sensory attributes, microbiological status, and overall storage stability. The nutritional compositions of developed pickles were different depending on the processing ingredients. Chemical analysis of developed pickles showed that the highest moisture content (60.23%) was given by sample A (500 g Brinjal + No tamarind pulp) followed by Sample B (450 g Brinjal + 50 g tamarind pulp), C (400 g Brinjal + 100 g tamarind pulp), and D(350 g Brinjal + 150 g tamarind pulp). Other components such as ash, protein, fat, fibre, vitamin C, magnesium, phosphorus, iron & total carbohydrate content increased with an increasing amount of tamarind pulp with brinjal. The acceptability of prepared pickles was organoleptically evaluated by the panelists using 1-9 hedonic scale. Sensory properties more specifically overall acceptability were in a rank like sample D>C>B>A. Storage studies were carried out for up to 4 months at room temperature (29°-30° C) at interval of one month. Microbial load decreased with the increasing amount of tamarind pulp, salt, sugar, and mustard oil in brinjal pickles. It could be due to the antimicrobial activity of tamarind pulp, salt, sugar, and mustard oil. The color, flavor & texture were unchanged up to 4 months of storage except slightly spoiled in samples A and B at 4th month.
本研究旨在优化茄子泡菜的制作工艺,并研究罗望子果肉对茄子泡菜营养、感官品质和贮藏稳定性的影响。对新鲜茄子和罗望子果肉进行了营养成分分析。以罗望子果肉为原料,对研制的茄子腌菜的营养成分、感官特性、微生物状况和整体贮藏稳定性进行了分析。腌制泡菜的营养成分因加工原料的不同而不同。化学分析表明,样品A (500 g茄子+ No罗望子浆)水分含量最高(60.23%),其次是样品B (450 g茄子+ 50 g罗望子浆)、C (400 g茄子+ 100 g罗望子浆)和D(350 g茄子+ 150 g罗望子浆)。其他成分如灰分、蛋白质、脂肪、纤维、维生素C、镁、磷、铁和总碳水化合物含量随着罗望子果肉添加量的增加而增加。小组成员使用1-9的享乐量表对预制泡菜的可接受性进行感官评价。感官特性,更具体地说,总体可接受性的排序是:样本D>C>B> a。在室温(29°-30°C)下,每隔一个月进行长达4个月的储存研究。随着罗望子浆、盐、糖和芥菜油添加量的增加,茄子腌菜中微生物负荷降低。这可能是由于罗望子果肉、盐、糖和芥末油的抗菌活性。除了样品A和样品B在第4个月略有变质外,颜色、风味和质地在4个月内保持不变。
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引用次数: 0
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Journal of Bangladesh Agricultural University
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