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Bioactive compounds and value-added applications of cupuassu (Theobroma grandiflorum Schum.) agroindustrial by-product Ciênc. Tecnol. Aliment.
COSTA,Russany Silva da; SANTOS,Orquídea Vasconcelos dos; LANNES,Suzana Caetano da Silva; CASAZZA,Alessandro Alberto; ALIAKBARIAN,Bahar; PEREGO,Patrizia; RIBEIRO-COSTA,Roseane Maria; CONVERTI,Attilio; SILVA JÚNIOR,José Otávio Carréra.
Abstract Cupuassu is a fruitful species from the Amazon basin with great economical potential, due to the multiple uses of its pulp and seeds in the food and cosmetic industries. This fruit generates large amounts of solid waste, which, despite of its high content of bioactive compounds, is discarded in the environment. Therefore, with the aim of reusing these wastes and adding economic value, we investigated the nutritional potential of the seed by-product resulting from industrial cupuassu oil extraction. The by-product was submitted to green extraction, and its contents of bioactive compounds were quantified by HPLC. The extract had a total polyphenol content (16.9 ± 1.8 mg/gDM) and an antioxidant activity, ABTS + (151.0 ± 5.5 mg/100 g) and DPPH. (85.4...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cupuassu; By-product; Antioxidant activity; Flavonoids; Reuse; Value-added applications.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000200401
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Bioethanol production from coconut husk fiber Ciência Rural
Cabral,Mirelle Márcio Santos; Abud,Ana Karla de Souza; Silva,Carlos Eduardo de Farias; Almeida,Renata Maria Rosas Garcia.
ABSTRACT: Population growth and the increasing search for healthy foods have led to a major consumption of coconut water and, hence, to an environmental impact caused by the inappropriate disposal of green coconut husks. This lignocellulosic biomass has deserved attention of researchers concerning the seeking of new usages, as, for example, in renewable fuels production technologies. This study examines the potential of green coconut husk fibers as a feedstock for the production of bioethanol. The coconut fibers were pretreated through an alkaline method, hydrolyzed enzymatically and submitted to ethanol fermentation with commercial yeasts of Saccharomyces cerevisiae. Despite the significant loss of cellulose (4.42% in relation to the fiber and 17.9%...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Reuse; Coconut husk; Fermentation; Bioethanol.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001001872
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Changes in chemical attributes of a Fluvent cultivated with castor bean and irrigated with wastewater AGRIAMBI
Barreto,Aurelir N.; Nascimento,Joab J. V. R. do; Medeiros,Everaldo P. de; Nóbrega,Janiny A. da; Bezerra,Jose R. C..
Agricultural use of wastewater is an alternative to increase water availability, especially in semiarid regions. However, it may cause undesirable chemical changes in the soil. The aim of this study was to evaluate the influence of wastewater irrigation and castor bean (Ricinus communis L.) cultivation on the chemical attributes of a Fluvic Neosol. The experimental design was in a randomized block, in split-plot scheme, where the main plots were represented by the treatments of irrigation water and castor bean cultivation, and the subplots were the soil layers, with three replications. The treatments were T1 - wastewater irrigation + castor bean cultivation ; T2 - mixture of supply water and wastewater (1:1 ratio) + castor bean cultivation; T3 - supply...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Reuse; Nutrients; Effluent; Water management; Ricinus communis.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662013000500003
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Chemical properties of a Haplustalf soil under irrigation with treated wastewater and nitrogen fertilization AGRIAMBI
Silva,Leda V. B. D.; Lima,Vera L. A. de; Pearson,Howard W.; Silva,Tainara T. S.; Cris L. Maciel,S.; Sofiatti,Valdinei.
ABSTRACT The objective of this research was to investigate the effects of irrigation with treated wastewater and nitrogen (N) fertilization on the chemical characteristics of a Haplustalf soil cultivated with cotton. An experiment was conducted in a greenhouse in a completely randomized design with four replicates, and arranged in a 5 x 4 factorial. Five doses of N fertilization (0, 45, 90, 135 and 180 kg ha-1) and four sources of irrigation water (freshwater, wastewater treated by an anaerobic reactor, wastewater treated by an anaerobic reactor and post-treated by intermittent sand filter in series, wastewater treated in a septic tank and post-treated by an intermittent sand filter) were tested. Irrigation was daily performed from July 2011 to January...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Reuse; Soil fertility; Irrigation.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000400308
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Economic feasibility of implementing an infrastructure for collecting rainwater from the roof of free-stall sheds. Repositório Alice
DEMEU, F. A.; LOPES, M. A.; PALHARES, J. C. P.; LIMA, A. L. R. DE; CARVALHO, F. DE M.; LOPES FILHO, M. A.; DEMEU, A. A.; VIDAL, D. A.; LIMA, M. DE L.; BARBARI, M..
This study aimed to analyze the economic feasibility of implementing and using the necessary infrastructure to collect rainwater from the roof of free-stall sheds in a dairy production system in southern Minas Gerais, Brazil. Specifically, the total cost (TC), total operating cost (TOC), and actual operating cost (AOC) of a cubic meter of rainwater and the break-even point in cubic meters were estimated. The research was conducted from January to December 2017 on a property located in the south of Minas Gerais. The following MOP scenarios were analyzed: most likely (Scenario 1), optimistic (scenario 2), and pessimistic (scenario 3). The grant value of the Das Velhas River basin was considered for the most likely scenario, as it has the most similar value...
Tipo: Artigo de periódico Palavras-chave: Scenario analysis; Dairy cattle farming; Profitability indicators; Reuse; Sustainability; Bovinocultura leiteira; Indicadores de rentabilidade; Sustentabilidade.
Ano: 2021 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1137656
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Economic viability of implementing an infrastructure for recycling bedding sand from a free-stall facility for dairy cows. Repositório Alice
LOPES, M. A.; DEMEU, F. A.; REIS, E. M. B.; LIMA, A. L. R.; CARVALHO, F. DE M.; PALHARES, J. C. P.; COSTA, G. M. DA; PINHEIRO, M. V. G.; DEMEU, A. A..
This study proposes to examine the economic viability of implementing the necessary infrastructure for the recycling of bedding sand from a free-stall facility in a milk production system in southern Minas Gerais, Brazil. In specific terms, the total production cost (TC), total operating cost (TOC) and effective operating cost (EOC) of a cubic meter of recycled sand were estimated in order to estimate the total sand consumption for the free-stall system and per bed year-1 as well as the equilibrium point of the amount of recycled sand, in cubic meters. The experiment was carried out on a farm located in the south of Minas Gerais from January 2016 to December 2017. Three scenarios were analyzed by the tree-point estimation method (MOP - most likely,...
Tipo: Artigo de periódico Palavras-chave: Scenario analysis; Dairy cattle farming; Profitability indicators; Reuse; Sustainability; Análise de cenários; Bovinocultura leiteira; Indicadores de rentabilidade; Reuso; Sustentabilidade.
Ano: 2021 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1137670
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Effects of Ignoring Survey Design Information for Data Reuse ArchiMer
Foster, Scott D.; Vanhatalo, Jarno; Trenkel, Verena; Schulz, Torsti; Lawrence, Emma; Przeslawski, Rachel; Hosack, Geoffrey R..
Data are currently being used, and reused, in ecological research at an unprecedented rate. To ensure appropriate reuse however, we need to ask the question: “Are aggregated databases currently providing the right information to enable effective and unbiased reuse?” We investigate this question, with a focus on designs that purposefully favour the selection of sampling locations (upweighting the probability of selection of some locations). These designs are common and examples are those designs that have uneven inclusion probabilities or are stratified. We perform a simulation experiment by creating datasets with progressively more uneven inclusion probabilities, and examine the resulting estimates of the average number of individuals per unit area...
Tipo: Text Palavras-chave: Bias; Survey Design; Database; Population Density Estimate; Model; Horvitz‐Thompson; FAIR; Reuse; Data; Inclusion Probability.
Ano: 2021 URL: https://archimer.ifremer.fr/doc/00691/80339/83422.pdf
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Especificação e instanciação de modelos matemáticos hierárquicos utilizando XML no framework de simulação MaCSim. Repositório Alice
MANCINI, A. L.; BARIONI, L. G.; BORTOLUCCI JUNIOR, J.; TININI, L. V. S.; LEONARDI, J. J.; MINTO NETO, J. G..
A equipe do Laboratório de Matemática Computacional da Embrapa Informática Agropecuária optou pela metalinguagem Extensible Markup Language (XML), para desenvolver um padrão de especificação de modelos atômicos e hierárquicos para o framework de simulação MaCSim.
Tipo: Anais e Proceedings de eventos Palavras-chave: Representação de sistemas dinâmicos; Metalinguagem; Reuso; Arcabouços de simulação; Dynamic system representation; Metalanguage; Reuse.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1027405
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Microbiological and physicochemical treatments applied to metallurgic industry aiming water reuse BABT
Bello,Antonio Roberto Crystal; Angelis,Dejanira de Franceschi de; Domingos,Roberto Naves.
A study was conducted on the reuse of the water in a system composed of a sewage treatment plant (STP) using prolonged aeration with activated sludge and a compact water treatment plant (CWTP) in a metallurgic industry. The processes for obtaining the water for reuse were microbiological and physicochemical. The domestic sewage was then pumped to the STP, where biological flocks were formed and clarified water was obtained. The efficiency of the microbiological process in the STP was evaluated for removal of biochemical oxygen demand (BOD), chemical oxygen demand (COD) and sedimentary solids (SS). The efficiency of physicochemical processes for clarifying the water and disinfection was evaluated through analysis of pH, turbidity, color, aerobic...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Water; Reuse; Sewage; Microorganisms; Disinfection.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000200020
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Optimizing the operational conditions of a membrane bioreactor used for domestic wastewater treatment BABT
Viana,Priscilla Zuconi; Nobrega,Ronaldo; Jordão,Eduardo Pacheco; Azevedo,José Paulo Soares de.
This study evaluated the performance of a sidestream membrane module combined with an aeration system for the treatment of municipal wastewater. To investigate the membrane's behavior and to control fouling, trials in laboratory units were conducted. In these tests, optimal values were established for some operational parameters, such as crossflow velocity, transmembrane pressure and air supply to continuously flush the membrane surface. Air supply improved the behavior of the permeate flux over time. After six hours operation, the stabilized flux was 35 L/m².h at a total pressure of 0.40 bar (wastewater pressure of 0.05 bar and air pressure of 0.35 bar) and Reynolds Number of 4,600. All permeate samples analyzed indicated absence of fecal coliform and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Membrane bioreactor; Reuse; Wastewater treatment; Membranes.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000400015
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Performance of drippers in two filtering systems using sewage treatment effluent AGRIAMBI
Dalri,Alexandre B.; Santos,Gilmar O.; Dantas,Geffson de F.; Faria,Rogério T. de; Zanini,José R.; Palaretti,Luiz F..
ABSTRACT The objective of this study was to evaluate the performance of three models of drippers using treated sewage effluent, pure and diluted, and two types of filters, screen and disc. The treated sewage effluent used in the experiment was collected from the city’s treatment plant. The experiment included 12 lateral lines with three types of emitters to apply pure (100%) and diluted (50%) effluent filtered by screen and disc filters. The combination of those factors set the treatments: T1 (50% effluent diluted in fresh water filtered by a screen filter); T2 (50% effluent diluted in fresh water filtered by a disc filter); T3 (pure effluent filtered by a screen filter); T4 (pure effluent filtered by a disc filter). The results showed that the flat type...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Wastewater; Emitters; Filter; Reuse; Irrigation.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000600363
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Reuse water and urban horticulture: alliance towards more sustainable cities Horticultura Brasileira
Bizari,Douglas R; Cardoso,Jean C.
ABSTRACT The need to rethink current models of using water resources in the various sectors of human activity is escalating, as thousands of people in different regions of the world are suffering from clean water shortage for their basic daily needs. In this context, the use of recycled water from treated domestic sewage in agricultural activities is gaining ground. Reuse water can combine environmental protection and high agricultural productivity, especially for simultaneously carrying plant nutrients and minimizing demands for catching "noble" fresh water from streams and water sources for irrigation, currently the highest water consuming activity. The increasing urbanization contributes to generate, but also to foster the treatment and use of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Reuse; Recycled wastewater; Irrigation; Sustainability; Urban and peri-urban horticulture; Ornamental plants..
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362016000300311
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STATISTICAL PROCESS CONTROL IN THE ASSESSMENT OF DRIP IRRIGATION USING WASTEWATER REA
Acuña Chinchilla,Sisgo R.; Silva,Ênio F. de F. e; Almeida,Ceres D. G. C. de; Silva,Alexsandro O. da; Santos,Patrício R. dos.
ABSTRACT The aim of this study was to evaluate drip irrigation as a process, by monitoring the average flow applied by the emitter using tools of statistical quality control. Four kinds of drippers were selected, two inline labyrinth type and two online where one of the inline emitters was not self-compensating and the other, self-compensating emitter. The system was installed in the field and tested for 85 hours, using three kinds of treated domestic sewage effluents and tap water. The system was under statistical control when the emitters were new, however none of the drippers reaches the manufacturer's specification for average flow. The online drippers showed more dispersion for individual flow measurements and the non-self-compensating inline dripper...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Domestic sewage effluent; Reuse; Emitters; Localized irrigation.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162018000100047
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Sweet grape mini tomato grown in culture substrates and effluent with nutrient complementation REA
Cunha,Ananda H. N.; Sandri,Delvio; Vieira,Jonas A.; Cortez,Thiago B.; Oliveira,Thiago H. de.
The objective of this study was to evaluate production of Sweet Grape mini tomato (Lycopersicum esculentum Mill.) using culture substrates and nutrient solution sewage effluent, applied by drip irrigation (fertigation). The experiment was conducted at the University of Goiás State (UEG-UnUCET), from June to November 2011 in Anápolis-GO, Brazil. The experimental design was a 2 x 3 factorial arrangement in a randomized complete block design with four repetitions. The plots were made by combining two nutrient solutions, effluent supplemented with mineral fertilizers (EcS); conventional nutrient solution (SnC); in addition three cultivation substrates: 60% of fine sand washed + 40% substrate composed by 20% coconut fiber plus 80% pine bark (S1); 20% coconut...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Mini tomato; Nutrient solution; Reuse.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000400010
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The Value of Reducing Cancer Risks at Contaminated Sites: Are More Heavily Exposed People Willing to Pay More? AgEcon
Tonin, Stefania; Alberini, Anna; Turvani, Margherita.
We use conjoint choice questions to investigate people’s tastes for cancer risk reductions and income in the context of public programs that would provide for remediation at abandoned industrial contaminated sites. Our survey was self-administered using the computer by persons living in the vicinity of an important contaminated site on the Italian National Priority List. The value of a prevented case of cancer is €2.6 million, but this figure does vary with income, perceived exposure to contaminants, and opinions about priorities that should be pursued by cleanup programs.
Tipo: Working or Discussion Paper Palavras-chave: Value of a Statistical Case of Cancer; Conjoint Choice Experiments; Contaminated Sites; Abandoned Sites; Reuse; Remediation; Health Economics and Policy; J17; I18; K32; Q51; Q53.
Ano: 2009 URL: http://purl.umn.edu/52548
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Use of cassava wastewater treated anaerobically with alkaline agents as fertilizer for maize (Zea mays L.) BABT
Ribas,Maria Magdalena Ferreira; Cereda,Marney Pascoli; Villas Bôas,Roberto Lyra.
The wastewater of the processing of cassava's flour (manipueira) was submitted to the anaerobic treatment in two phases: acidogenic and methanogenic. In the acidogenic phase, the wastewater was stabilized with NaOH (ASH) and with limestone (ASL). After that, both stabilized effluents were treated by a methanogenic reactor. Then, the effluent of the methanogenic reactor was used as fertilizer on maize in the initial growth stage (30 days), cultivated in pots in a greenhouse. The treatments were T1: control without urea addition (only N from soil); T2: NPK (2.2 g of urea with 45% of N); T3: ASH (84 mL.kg soil-1); T4: ASL (102 mL.kg soil-1); T5: double dose ASH (168 mL.kg soil-1) and T6: double dose ASL (204 mL.kg soil-1). Each treatment was composed by 4...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Reuse; Manipueira; Anaerobic digestion; Hydroxide sodium; Dolomitic limestone.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000100007
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Use of maize cob for production of particleboard Ciência e Agrotecnologia
Scatolino,Mário Vanoli; Silva,Danillo Wisky; Mendes,Rafael Farinassi; Mendes,Lourival Marin.
Agricultural residues are materials generated in large quantities in Brazil and can accumulate to such extent as to cause environmental problems. Among agricultural residues, maize cob is one worthy of notice, and an alternative use for maize cob would be to produce particleboard panels in association with wood particles. This study aimed to evaluate the feasibility of using maize cob for production of particleboard panels. The following maize cob percentages were used: 0%, 25%, 50%, 75% and 100%, in association with particles of Pinus oocarpa wood. Panels were made with 8% of urea formaldehyde and 1% of paraffin (based on dry weight of particles). For compressing the panels, a pressure of 3.92 MPa was applied at a temperature of 160º C, for 8 minutes....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Environmental problems; Reuse; Physicomechanical properties; Agricultural residues.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000400006
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Water type and irrigation time effects on microbial metabolism of a soil cultivated with Bermuda-grass Tifton 85 BABT
Nogueira,Sandra Furlan; Paula,Alessandra Monteiro de; Pereira,Bruno Fernando Faria; Salemi,Luiz Felippe; Fonseca,Adriel Ferreira da; Montes,Célia Regina; Victoria,Reynaldo Luiz.
This study investigated the microbial metabolism in Bermuda-grass Tifton 85 areas after potable-water and effluent irrigation treatments. The experiment was carried out in Lins/SP with samples taken in the rainy and dry seasons (2006) after one year and three years of irrigation management, and set up on an entirely randomized block design with four treatments: C (control, without irrigation or fertilization), PW (potable water + 520 kg of N ha-1 year-1); TE3 and TE0 (treated effluent + 520 kg of N ha-1 year-1) for three years and one year, respectively. The parameters determined were: microbial biomass carbon, microbial activity, and metabolic quotient. Irrigation with wastewater after three years indicated no alteration in soil quality for C and ET3; for...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Reuse; Irrigated agriculture; Microbial respiration; Cmic; QCO2.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000300007
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