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BIOGAS PRODUCTION FROM DAIRY CATTLE MANURE, UNDER ORGANIC AND CONVENTIONAL PRODUCTION SYSTEMS REA
Matos,Camila F.; Paes,Juliana L.; Pinheiro,Érika F. M.; Campos,David V. B. De.
ABSTRACT The purpose of this study was to evaluate the production of biogas, as well as the biogas production potential resulting from the anaerobic biodigestion of dairy cattle manure under organic (CMOS) and conventional (CMCS) production system. Also, the concentration of thermotolerant coliforms was evaluated after the biodigestion process. Therefore, bench biodigesters prototypes were supplied with CMOS and CMCS for 30 weeks. The experimental design was completely randomized with four repetitions for each treatment. Analysis of total solids (TS), volatile solids (VS), biogas production potential, most probable number (MPN) of thermotolerant coliforms were made. The cumulative biogas production was 6.18 L and 11.15 L, when using the CMOS and CMCS,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anaerobic biodigestion; Biodigester; Agricultural waste.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162017000601081
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Economic Aspects of Renewable Energy from Agricultural Waste on the Southern Plains of Texas AgEcon
Liu, Xiaolan; Farmer, Michael.
Motivated to explore sustainability of renewable energy from bio-waste, this study attempted to discover the economic feasibility of effectively utilizing the existing agricultural waste to generate bio-energy, to complement local nucleus business by meeting specific market demands while assessing the reasonable risk associated with bio-energy production for an area with heavy concentration of agricultural production and serious water constraints. Since the problems to be addressed are all location specified critical points for bio-energy generation, GIS maps are used to identify the locations and the associated attainable volumes of agricultural waste. Meanwhile, reasonable variation and distribution of attainable cotton gin waste was identified by using...
Tipo: Conference Paper or Presentation Palavras-chave: Sustainability; Bio-energy; Agricultural waste; Economic feasibility; Risk; Agribusiness; Land Economics/Use.
Ano: 2010 URL: http://purl.umn.edu/61752
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Effects of Kraft Lignin and Corn Residue on the Production of Eucalyptus Pellets. Repositório Alice
BARBOSA, B. M.; VAZ JUNIOR, S.; COLODETTE, J. L.; SIQUEIRA, H. F. de; SILVA, C. M. S. da; CÂNDIDO, W. L..
Tipo: Artigo de periódico Palavras-chave: Solid fuel; Mechanical strength; Agricultural waste; Additives.
Ano: 2022 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1142861
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Enhanced production of prodigiosin by Serratia marcescens MO-1 using ram horn peptone BJM
Kurbanoglu,Esabi Basaran; Ozdal,Murat; Ozdal,Ozlem Gur; Algur,Omer Faruk.
This work addresses the production of prodigiosin from ram horn peptone (RHP) using MO-1, a local isolate in submerged culture. First, a novel gram-negative and rod-shaped bacterial strain, MO-1, was isolated from the body of the grasshopper (Poecilemon tauricola Ramme 1951), which was collected from pesticide-contaminated fields. Sequence analysis of 16S rDNA classified the microbe as Serratia marcescens. The substrate utilization potential (BIOLOG) and fatty acid methyl ester profile (FAME) of S. marcescens were also determined. The effect of RHP on the production of prodigiosin by S. marcescens MO-1 was investigated, and the results showed that RHP supplementation promoted the growth of MO-1 and increased the production of prodigiosin. A concentration...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Prodigiosin; Serratia marcescens; Ram horn peptone; Agricultural waste.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000200631
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Eucalyptus wood and coffee parchment for particleboard production: Physical and mechanical properties Ciência e Agrotecnologia
Scatolino,Mário Vanoli; Costa,Andrey de Oliveira; Guimarães Júnior,José Benedito; Protásio,Thiago de Paula; Mendes,Rafael Farinassi; Mendes,Lourival Marin.
ABSTRACT The wood panel industry is constantly growing, being necessary the innovation in technologies and raw materials to improve the quality of the final product. Considering the shortage and pressure to decrease the dependence of wood, there is an interest in other renewable materials such as agricultural wastes. Among these wastes, coffee parchment is one which deserves notoriety. An alternative use for coffee parchment could be for production of particleboard in association with wood particles. This study aimed to evaluate the feasibility of using coffee parchment for production of particleboard. The following percentages of wastes were used: 0, 10, 20, 30, 40 and 50% in association to eucalyptus wood. The panels were produced with 8% of urea...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural waste; Lignocellulosic material; Renewable material.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542017000200139
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Evaluation of protein extraction methods to obtain protein concentrate from cassava leaf REA
Coldebella,Priscila F.; Gomes,Simone D.; Evarini,Janete A.; Cereda,Marney P.; Coelho,Sílvia R. M.; Coldebella,Anderson.
The cassava leaf, waste generated in the harvest of the roots, is characterized by high content of protein, vitamins and minerals; however, its use is limited due to the high fiber content and antinutritional substances, which can be removed by obtaining protein concentrates. In this context, the objective of this study was to evaluate protein extraction processes, aiming the use of cassava leaves (Manihot esculenta Crantz) as an alternative protein. Four methods were tested: 1) Coagulation of Proteins by Lowering the Temperature, 2) Extraction by Isoelectric Precipitation, 3) Solubilization of Proteins and 4) Fermentation of Filter Leaf Juice. To obtain the concentrates, the use of fresh or dried leaves and extraction in one or two steps were also...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Exploitation; Agricultural waste; Protein extraction.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162013000600015
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Mathematical drying kinetics modeling of jackfruit seeds (Artocarpus heterophyllus Lam.) Rev. Ciênc. Agron.
Leite,Daniela Dantas de Farias; Queiroz,Alexandre José de Melo; Figueirêdo,Rossana Maria Feitosa de; Lima,Leiliane Silva Lopes.
ABSTRACT Jackfruit (Artocarpus heterophyllus Lam.) is a fruit with pulp rich in carbohydrates, calcium, phosphorus, iron and B-complex vitamins. A large amount of waste is generated in the pulp processing, in which the seeds are included. Jackfruit seeds are often consumed after cooking, and may also undergo roasting, milling and incorporation into bakery products. The remaining jackfruit seeds can be germinated as a means to increase its utilization, constituting a process that confers positive biochemical modifications to the nutritional quality. Thus, the objective of this work was to dry the germinated seeds of the jackfruit tree in a convective drier at 55, 65 and 75 °C with drying air velocities of 1.0 and 1.3 m s-1, and adjusting different...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural waste; Malting; Sustainability; Environment.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902019000300361
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Pequi (Caryocar coriaceum Wittm.) extrativism: situation and perspectives for its sustainability in Cariri Cearense, Brazil Acta Agron. (Palmira)
Matias Maciel,Tamires Coelho; Araújo Marco,Cláudia; Silva,Erlles Eder; Silva,Toshik Iarley da; Santos,Hernandes Rufino dos; Freitas Júnior,Silvério de Paiva; de Oliveira Alcantara,Francisca Dayanne; Chaves,Marcelo Moura.
Abstract Considering the plant richness of Chapada do Araripe, Brazil, the pequi (Caryocar coriaceum Wittm) extractivism occurs as an important activity that affects the economy and social life of the main cities of Cearense Cariri, although there is little knowledge about its current situation and sustainability perspective. The aim of this work is to collect information regarding actor relationships involved in the pequi extractive activity, relating them to the sustainability dimensions. This study was carried in the Barreiro Novo camping site, located in the state highway CE 060 in the Jardim-Ce municipality. Semistructured questionnaires were used with pequi collectors to establish a socioeconomic profile, besides using the participant observation...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural waste; Community; Regional development; Oil; NTFP; FLONA.
Ano: 2018 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122018000200238
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Phosphorus sources enriched with filter cake and microorganisms in the soil microbiota: Phosphorus absorption and sugar cane dry matter production Ciencia e Investigación Agraria
Hernández,Alfredo R; Prado,Renato de M; González,Leónides C; Caione,Gustavo; Moda,Leandro R; Assis,Luis C; Almeida,Hilário J.
Filter cake enriched with biofertilizer (associated with fertilizer phosphate) can increase the available phosphorus, and thus improve the absorption of phosphorus and dry matter accumulation by plants. The objective of this study was to evaluate the effect of phosphorus sources in the absence and presence of filter cake (enriched with biofertilizer or not enriched) on the soil population of microorganisms, soil phosphorus content, phosphorus accumulation in the aerial portion of the plant and production of dry matter in sugar cane plants. The experiment was performed in a greenhouse using sugar cane as the test plant. A completely randomized design was adopted with a 3×3+1 factorial arrangement and three repetitions. The treatments consisted of the...
Tipo: Journal article Palavras-chave: Agricultural waste; Organic-fertilizer; Phosphate fertilizer; Saccharum spp.
Ano: 2015 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202015000200015
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Production of crystallized fruit from watermelon rind Ciencia e Investigación Agraria
Gontero,Mauro; Brandelli,Adriano; Zapata Noreña,Caciano.
The aim of this work was to produce crystallized fruit from watermelon rind. The following procedure was developed: the outer peel was removed; the material was sliced into 7 mm cubes, blanched for, 0, 5 and 10 minutes, and then treated with 10% sodium chloride solution. This product was treated with solutions of sucrose (30 to 72 °Brix), and dried in a hot air dryer at different temperatures (40, 60 and 80 °C). Products were then analyzed by a sensory panel. The experimental design used was randomized blocks and the results were analyzed by the Tukey's test. The best acceptance of the sensory panel was for the product obtained by 5 minutes blanching followed by drying at 60 °C, whose intensity values for appearance, flavor and gummosis were between 6 and 7.
Tipo: Journal article Palavras-chave: Osmosis; Watermelon; Dehydration; Agricultural waste.
Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202010000200006
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Rice husk derived waste materials as partial cement replacement in lightweight concrete Ciência e Agrotecnologia
Kawabata,Celso Yoji; Savastano Junior,Holmer; Sousa-Coutinho,Joana.
In this study rice husk ash (RHA) and broiler bed ash from rice husk (BBA), two agricultural waste materials, have been assessed for use as partial cement replacement materials for application in lightweight concrete. Physical and chemical characteristics of RHA and BBA were first analyzed. Three similar types of lightweight concrete were produced, a control type in which the binder was just CEMI cement (CTL) and two other types with 10% cement replacement with, respectively, RHA and BBA. All types of similar lightweight concrete were prepared to present the same workability by adjusting the amount of superplasticizer. Properties of concrete investigated were compressive and flexural strength at different ages, absorption by capillarity, resistivity and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural waste; Rice husk ash; Broiler bed ash; Degradation.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542012000500010
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Soybean waste in particleboard production Ciência e Agrotecnologia
Martins,Evelyn Hoffmamm; Vilela,Alan Pereira; Mendes,Rafael Farinassi; Mendes,Lourival Marin; Vaz,Lívia Elisabeth Vasconcellos de Siqueira Brandão; Guimarães Junior,José Benedito.
ABSTRACT Brazil is the second largest soybean producer in the world, with a yield of around 96.2 million tons per crop. This high yield leads to a great amount of waste resulting from soybean cultivation, which can reach approximately 41 million tons of waste per year. This material has lignocellulosic properties, which may enable its use as a raw material for particleboard production. Therefore, the objective of this study was to evaluate the use of soybean pods in particleboard production. For particleboard manufacture, wood of the hybrid Eucalyptus urophylla and Eucalyptus grandis was used, added with soybean pods, at proportions of 0%, 25%, 50%, 75% and 100%. For particleboard evaluation, a completely randomized design was used, with five treatments...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Eucalyptus; Soybean pod; Agricultural waste; Physical and mechanical properties..
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542018000200186
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Study of thermodynamic water properties and moisture sorption hysteresis of mango skin Ciênc. Tecnol. Aliment.
Souza,Silvio José Ferreira de; Alves,Aline Inácio; Vieira,Érica Nascif Rufino; Vieira,José Antônio Gomez; Ramos,Afonso Mota; Telis-Romero,Javier.
The equilibrium moisture content for adsorption and desorption isotherms of mango skin was determined using the static gravimetric method at temperatures of 20, 26, 33, 38 and 44 oC in the 0.056 to 0.873 water activity range. Both sorption curves show a decrease in equilibrium moisture content as the temperature increasing. The hysteresis effect was observed at constant water activity. The Guggenheim, Anderson, and de Boer (GAB) model presented the best fitting accuracy among a group of models and was used to determine the thermodynamic properties of water sorption. Integral enthalpy and integral entropy areas showed inverted values for the adsorption and desorption isotherms over the wide range of water activity studied. These values confirm, in energetic...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural waste; Gravimetric method; Integral properties; Modelling; Water content.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612015000100157
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Sustainable production of furfural and 5-hidroximetilfurfural from rice husks and soybean peel by using ionic liquid Ciênc. Tecnol. Aliment.
SCAPIN,Elisandra; RAMBO,Magale Karine Diel; VIANA,Guenther Carlos Couto; MARASCA,Nicole; LACERDA,Gabriela Eustáquio; RAMBO,Michele Cristiane DIEL; FERNANDES,Rachel de Moura Nunes.
Abstract In the current search for renewable energy sources, residual biomass has been highlighted as a potential source of chemical compounds that are currently obtained from petroleum. Among the derivatives obtained from this, 5-hydroxymethylfurfural and furfural are considered key parts in this process as they are key compounds in the fine chemical industry. This work aims at the use of the rice husks and soybean peel for the synthesis of 5-hydroxymethylfurfural and furfural using the ionic liquid [BMIM][Br]. The physical pre-treatment of biomasses was carried out followed by acid hydrolysis. For the synthesis of the furanic compounds, different temperatures and reaction times were used. The products obtained in each step were analyzed by infrared...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Furanic compounds; Raw biomass; Agricultural waste; Green solvents.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612019005023107
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The hydrolysis of agro-industrial residues by holocellulose-degrading enzymes BJM
Moreira,Leonora Rios de Souza; Ferreira,Gaspar Virgilio; Santos,Sheila Sousa Thurler; Ribeiro,Ana Paula Souza; Siqueira,Félix Gonçalves; Ferreira Filho,Edivaldo Ximenes.
Holocellulose structures from agro-industrial residues rely on main and side chain attacking enzymes with different specificities for complete hydrolysis. Combinations of crude enzymatic extracts from different fungal species, including Aspergillus terreus, Aspergillus oryzae, Aspergillus niger and Trichoderma longibrachiatum, were applied to sugar cane bagasse, banana stem and dirty cotton residue to investigate the hydrolysis of holocellulose structures. A. terreus and A. oryzae were the best producers of FPase and xylanase activities. A combination of A. terreus and A. oryzae extracts in a 50% proportion provided optimal hydrolysis of dirty cotton residue and banana stem. For the hydrolysis of sugar cane bagasse, the best results were obtained with...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural waste; Enzymatic mixtures; Hydrolysis.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000200010
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