Revista Brasileira de Engenharia Agricola e Ambiental最新文献_第2页

Thermography and physiology of stress in dairy calves in outdoor holding pens covered with geosynthetics 用土工合成材料覆盖的室外畜栏中奶牛的热成像和应激生理学

IF 1.2 4区农林科学

Revista Brasileira de Engenharia Agricola e Ambiental Pub Date : 2021-08-23 DOI: 10.1590/1807-1929/AGRIAMBI.V25N11P787-793

Jéssica Caetano Dias Campos, Roberta Passini, Kaio F. M. do Nascimento

引用次数: 3

Drying of ‘yacon’ pretreated by pulsed vacuum osmotic dehydration 脉冲真空渗透脱水预处理雪莲果的干燥

IF 1.2 4区农林科学

Revista Brasileira de Engenharia Agricola e Ambiental Pub Date : 2021-08-01 DOI: 10.1590/1807-1929/AGRIAMBI.V25N8P560-565

Letícia F. Oliveira, J. Corrêa, P. G. Silveira, Marina Barbosa Vilela, J. Junqueira

{"title":"Drying of ‘yacon’ pretreated by pulsed vacuum osmotic dehydration","authors":"Letícia F. Oliveira, J. Corrêa, P. G. Silveira, Marina Barbosa Vilela, J. Junqueira","doi":"10.1590/1807-1929/AGRIAMBI.V25N8P560-565","DOIUrl":"https://doi.org/10.1590/1807-1929/AGRIAMBI.V25N8P560-565","url":null,"abstract":"ABSTRACT In this study, the ‘yacon’ was dried using pulsed vacuum osmotic dehydration as pretreatment followed by vacuum drying (at different temperatures) or convective drying. The use of osmotic dehydration and vacuum drying had their influence evaluated concerning drying kinetics and quality of the final product, considering fructan retention, color, and water activity. Fick’s second law and Page’s equation were suitable for the fitting of drying evolution. It was observed that higher temperatures (60 °C) resulted in shorter drying time, higher diffusivity, and higher fructan retention when compared to 40 and 50 °C. The osmotic pretreatment and the vacuum drying differed in fructan retention (p ≤ 0.05). Moreover, the dried product, osmotically pretreated, presented a shorter drying time. The best condition was vacuum drying at 60 ºC, preceded by pulsed vacuum osmotic dehydration that resulted in fructan retention of approximately 38% in a quicker, higher diffusivity and lighter color product concerning the other tested conditions.","PeriodicalId":51288,"journal":{"name":"Revista Brasileira de Engenharia Agricola e Ambiental","volume":"124 1","pages":"560-565"},"PeriodicalIF":1.2,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79503594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Precooling of table grapes on a commercial scale as function of packaging 在商业规模上对鲜食葡萄进行预冷，作为包装的功能

IF 1.2 4区农林科学

Revista Brasileira de Engenharia Agricola e Ambiental Pub Date : 2021-08-01 DOI: 10.1590/1807-1929/AGRIAMBI.V25N8P566-572

I. B. Miranda, Í.E.A. Santos, S. Turco, S. T. D. Freitas, Amélia C. Faustino, A. C. D. A. Lins

{"title":"Precooling of table grapes on a commercial scale as function of packaging","authors":"I. B. Miranda, Í.E.A. Santos, S. Turco, S. T. D. Freitas, Amélia C. Faustino, A. C. D. A. Lins","doi":"10.1590/1807-1929/AGRIAMBI.V25N8P566-572","DOIUrl":"https://doi.org/10.1590/1807-1929/AGRIAMBI.V25N8P566-572","url":null,"abstract":"ABSTRACT Although precooling by forced air is widely used to remove field heat from fresh table grapes, there is no knowledge about its use and efficiency. Factors influencing the process include temperature and relative air humidity, amount and initial temperature of the fruits, air velocity, and packaging. The objective of this study was to evaluate the cooling effect and efficiency of forced air cooling on table grapes in two types of packages. The experimental method used randomized blocks, in a 2 × 3 factorials, corresponding to two package types (polystyrene and cardboard) and three heights on the pallet - lower, middle, and upper - with four replicates. The temperature gradient in the direction of the airflow was evaluated. There was heterogeneity in cooling, both vertically and horizontally, on the pallets with a central heat zone for both the directions. None of the packages was suitable for fast cooling as both types of packages showed a cooling time of 15.5 h; moreover, relative humidity values were far below the ideal value for table grapes.","PeriodicalId":51288,"journal":{"name":"Revista Brasileira de Engenharia Agricola e Ambiental","volume":"450 1","pages":"566-572"},"PeriodicalIF":1.2,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77026226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Effect of saline water and shading on dragon fruit (‘pitaya’) seedling growth 盐水和遮荫对火龙果幼苗生长的影响

IF 1.2 4区农林科学

Revista Brasileira de Engenharia Agricola e Ambiental Pub Date : 2021-08-01 DOI: 10.1590/1807-1929/AGRIAMBI.V25N8P547-552

G. G. Sousa, S. B. Sousa, Ana C. da S. Pereira, V. B. Marques, M. A. D. Silva, J. Lopes

{"title":"Effect of saline water and shading on dragon fruit (‘pitaya’) seedling growth","authors":"G. G. Sousa, S. B. Sousa, Ana C. da S. Pereira, V. B. Marques, M. A. D. Silva, J. Lopes","doi":"10.1590/1807-1929/AGRIAMBI.V25N8P547-552","DOIUrl":"https://doi.org/10.1590/1807-1929/AGRIAMBI.V25N8P547-552","url":null,"abstract":"ABSTRACT ‘Pitaya’ (Hylocereus undatus) is a fruit-bearing, climbing cactus with great food potential for the semiarid region. This study aimed to evaluate the production of ‘pitaya’ seedlings irrigated with low and high salinity water and grown in different light intensities. The experiment was conducted in a completely randomized design, in a 2 × 2 factorial arrangement, with two electrical conductivities of irrigation water: S1 - 0.3 dS m-1 (low salinity) and S2 - 5.0 dS m-1 (moderate salinity) in two environments: A1 - black net with 50% shading, and A2 - full sun, with ten replicates. The variables evaluated were plant height, main cladode diameter, above-ground biomass, root biomass, total plant biomass, number of secondary cladodes, root length, and length of secondary cladodes. The 50% shading (black net) promoted higher plant height, number of secondary shoots, and root length of the ‘pitaya’ plants. The irrigation with moderate saline water (5.0 dS m-1) reduced the number of secondary cladodes, length of root, and length of secondary cladodes. The ‘pitaya’ seedlings grown under 50% shading (black net) showed greater root dry biomass when irrigated with low-salinity water. Greater values of diameter of the primary cladode, above-ground dry biomass, and total dry biomass were observed under full sunlight and elevated saline stress.","PeriodicalId":51288,"journal":{"name":"Revista Brasileira de Engenharia Agricola e Ambiental","volume":"38 1","pages":"547-552"},"PeriodicalIF":1.2,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76147577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Yield of ‘Gigante’ cactus pear cultivated under biofertilizer doses and application intervals 生物肥料用量和施肥期对“巨ante”仙人掌梨产量的影响

IF 1.2 4区农林科学

Revista Brasileira de Engenharia Agricola e Ambiental Pub Date : 2021-06-30 DOI: 10.1590/1807-1929/AGRIAMBI.V25N9P633-640

V. A. Fonseca, C. S. Rodrigues, Rodrigo R. Alvarenga, D. B. Santos, Felizarda Viana Bebé, D. S. Pina

引用次数: 1

Biometric responses of sugarcane under high doses of vinasse 高剂量酒糟对甘蔗生物特征的影响

IF 1.2 4区农林科学

Revista Brasileira de Engenharia Agricola e Ambiental Pub Date : 2021-06-30 DOI: 10.1590/1807-1929/AGRIAMBI.V25N9P641-647

M. S. Costa, M. M. Rolim, G. F. Silva, Djalma E. Simões, João Paulo Bispo Santos, Ê. F. D. F. Silva

引用次数: 3

Salinity tolerance of tomato fertigated with different K + /Ca 2+ proportions in protected environment 不同钾钙配比下番茄的耐盐性研究

IF 1.2 4区农林科学

Revista Brasileira de Engenharia Agricola e Ambiental Pub Date : 2021-06-30 DOI: 10.1590/1807-1929/AGRIAMBI.V25N9P620-625

F. A. Oliveira, F. I. G. Paiva, J. F. Medeiros, M. R. D. S. Melo, M. K. T. D. Oliveira, Ricardo C. P. da Silvas

引用次数: 3

Reference evapotranspiration estimation by different methods for the sucroenergy sector of Colombia 哥伦比亚不同方法的参考蒸散发估算

IF 1.2 4区农林科学

Revista Brasileira de Engenharia Agricola e Ambiental Pub Date : 2021-06-30 DOI: 10.1590/1807-1929/AGRIAMBI.V25N9P583-590

C. ChristianJ.Mendoza, Q. AndrésJ.Peña

引用次数: 2

Production efficiency of ‘BRS Pujante’ cowpea using single and dual Kc for irrigation 单、双Kc灌溉对BRS Pujante豇豆生产效率的影响

IF 1.2 4区农林科学

Revista Brasileira de Engenharia Agricola e Ambiental Pub Date : 2021-06-30 DOI: 10.1590/1807-1929/AGRIAMBI.V25N9P648-654

Ericlis D. S. Nunes, J. Sousa, M. Brito, W. C. D. Silva, E. G. Rodrigues, J. Cordeiro

引用次数: 0

Relationship between photosynthetically active radiation and global radiation in Petrolina and Brasília, Brazil 巴西Petrolina和Brasília光合有效辐射与总辐射的关系

IF 1.2 4区农林科学

Revista Brasileira de Engenharia Agricola e Ambiental Pub Date : 2021-06-30 DOI: 10.1590/1807-1929/AGRIAMBI.V25N9P612-619

Lady L. M. Custódio, B. B. Silva, C. Santos

引用次数: 3