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| Registros recuperados: 46 | |
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| Larsen,Andrea C.; Gomes,Benedito M.; Gomes,Simone D.; Zenatti,Dilcemara C.; Torres,Douglas G. B.. |
| The Brazil's Biodiesel Production and Use Program introduces biodiesel in the Brazilian energy matrix, bringing along the perspective of a growth of the glycerin offer, co-product generated in the proportion of 10 kg for each 100 L of biodiesel. The aim of this study was to evaluate the addition of crude glycerin in the anaerobic digestion of cassava starch industry effluent (cassava wastewater), in a horizontal semi-continuous flow reactor of one phase in laboratory scale. It was used a reactor with a 8.77 L of useful volume, a medium support for corrugated conduit of polyvinyl chloride (PVC), temperature of 261 ºC, fed with cassava wastewater and glycerin, with hydraulic detention times of 4 and 5 days and increasing volumetric organic load of 3.05;... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cassava wastewater; Biodiesel; Biogas; Glycerol. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162013000200013 |
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| Accorsini,Fábio Raphael; Mutton,Márcia Justino Rossini; Lemos,Eliana Gertrudes Macedo; Benincasa,Maria. |
| Biosurfactants are bioactive agents that can be produced by many different microorganisms. Among those, special attention is given to yeasts, since they can produce many types of biosurfactants in large scale, using several kinds of substrates, justifying its use for industrial production of those products. For this production to be economically viable, the use of residual carbon sources is recommended. The present study isolated yeasts from soil contaminated with petroleum oil hydrocarbons and assessed their capacity for producing biosurfactants in low cost substrates. From a microbial consortium enriched, seven yeasts were isolated, all showing potential for producing biosurfactants in soybean oil. The isolate LBPF 3, characterized as Candida antarctica,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Yeast; Biosurfactants; Glycerol; Soybean oil. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000100013 |
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| OKAWARA, Sumika; HAMANO, Seizo; TETSUKA, Masafumi; 手塚, 雅文. |
| Glycerol plays multi-functional roles in cellular physiology. Other than forming the backbone molecule for glycerophospholipid and triglyceride (TG), glycerol acts as an energy substrate for glycolysis. Spermatozoa are known to utilize glycerol for energy production, but there are no reports of this in oocytes. In this study, the value of glycerol as an energy substrate for bovine oocyte maturation (Exp. 1) and the gene expression of glycerol kinase (GK), an enzyme crucial for cellular glycerol utilization, in bovine oocytes and early embryos (Exp. 2) were examined. In Exp. 1, in vitro maturation (IVM) was conducted using synthetic oviduct fluid supplemented with/without glucose (1.5 mM) and/or glycerol (1.0 mM), and maturation rate, degree of cumulus... |
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Palavras-chave: Bovine; Embryo; Glycerol; Glycerol kinase (GK); Oocyte maturation. |
| Ano: 2009 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2829 |
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| Simm,Silvana; Orrico,Ana Carolina Amorim; Orrico Junior,Marco Antonio Previdelli; Sunada,Natália da Silva; Schwingel,Alice Watte; Mendonça Costa,Mônica Sarolli Silva de. |
| ABSTRACT Anaerobic digestion of crude glycerin (CG) along with animal waste has been an excellent option for increasing the production of biogas and methane to achieve efficiency in the treatment of both residues. This study aimed to evaluate improvements in specific productions of biogas and methane, reductions in solid and fibrous components in substrates prepared with dairy cattle manure and CG (containing 14 % glycerol). With these residues, experimental substrates were prepared and placed in 25 batch digesters. Initial content of the TS in the influent was 4 % and CG was added in increasing doses (0, 5, 10, 15 and 20 % relative to total solids (TS) of the influent). Results were submitted to ANOVA and orthogonal contrasts to assess the effects of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glycerol; Biogas; Anaerobic digestion; Solids. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162017000300175 |
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| van Cleef,Eric Haydt Castello Branco; Ezequiel,Jane Maria Bertocco; D'Aurea,André Pastori; Fávaro,Vanessa Ruiz; Sancanari,Juliana Borsari Dourado. |
| Two studies were conducted to evaluate the effects of crude glycerin on feed intake, performance, carcass characteristics, and total digestibility of Nellore bulls. In experiment 1, cattle (n = 30) were fed a control diet without crude glycerin and diets containing 7.5, 15, 22.5, and 30% crude glycerin, for 103 d. Animals were harvested and data of carcass characteristics were collected. In experiment 2, a digestibility trial was performed using indigestible acid detergent fiber (iADF) as internal marker, and five rumen-cannulated steers. Both experiments were conducted as a randomized complete block design and data were analyzed using mixed procedures. In experiment 1 no differences were observed among treatments on dry matter intake, and performance... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Beef cattle; By-products; Carcass; Digestion; Glycerol. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014000200006 |
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| Dias,Juliano Cesar; Silveira,André Luís Finkler da; Lançanova,José Antonio Cogo; Hill,João Ari Gualberto; Moletta,José Luiz. |
| ABSTRACT: This experiment aimed to evaluate the effect of including glycerin in kid goats diet on intake, performance and carcass traits. Twenty intact male kid goats Boer crossbred were used, with body weight of 25.06±4.15kg and 8.00±0.66 months old, allocated in block design, with four treatments and five replicates. The treatments consisted on including dry matter basis (DM) of the diet of four levels of glycerin: zero, five, 10 and 15%, in replacing corn. It was not reported influence (P>0.05) of level of glycerin on intake of forage and feed conversion of animals. The concentrate and total DM intake were affected (P<0.05) for the level of glycerin in DM, with reduction in the animals that received the highest level. It was not reported influence... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Boer; Body weight; Glycerol; Kid goat.. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000400719 |
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| Santana Júnior,Hermógenes Almeida de; Figueiredo,Mauro Pereira; Cardoso,Elizangela Oliveira; Mendes,Fabrício Bacelar Lima; Abreu Filho,George; Pinheiro,Alyson Andrade; Viana,Pablo Teixeira; Roseira,João Paulo Santos. |
| The objective of this study was to evaluate the nutritional and productive characteristics of primiparous lactating cows grazing on tropical pasture, using different levels of crude glycerin in the supplement. The experiment was conducted at Rancho Santana farm, located in Jequié city, Bahia, Brazil, in the period from December 21, 2010 to March 16, 2011. Ten ¾ Holstein × ¼ Dairy Gyr lactating primiparous cows, with 109±24 days of lactation and a mean age of 30±6 months and mean body weight of 426.2±68.29 kg were distributed into five treatments, using two simultaneous 5 × 5 latin squares. Treatments consisted of inclusion levels (0, 94, 191, 289, 389 g/kg dry matter basis) of crude glycerin in the supplement. Intake, digestibility, milk production and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biodiesel; Co-product; Glycerol; Intake; Supplementation. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000200006 |
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| Moreira,Werney da Silva; Miotto,Fabrícia Rocha Chaves; Restle,João; Missio,Regis Luis; Neiva,José Neuman Miranda; Moreira,Roger Vieira. |
| ABSTRACT - The objective of this study was to find the best level of inclusion of crude glycerin (0, 60, 120, and 240 g kg−1 of dry matter of diet) in substitution of pearl millet in a feedlot diet. Twenty-eight Nellore young bulls with mean age of 18 months and average weight of 357±23.56 kg were used. The animals were distributed in a completely randomized design with four treatments and seven replications. The intakes of dry matter, crude protein, neutral detergent fiber, and total digestible nutrients were similar among the dietary levels of crude glycerin. The ether extract intake decreased with increase in the levels of crude glycerol in the diets. Apparent digestibility of dry matter, crude protein, and extract ether was similar among the dietary... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: By-products; Digestibility; Finishing; Glycerol; Intake; Weight gain. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016000100032 |
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| Carvalho,Paulo Levi de Oliveira; Moreira,Ivan; Martins,Elias Nunes; Piano,Liliane Maria; Toledo,Juliana Beatriz; Costa Filho,Clodoaldo de Lima. |
| Two experiments were carried out to determine the nutritional value and to evaluate performance of piglets fed two types of crude glycerine (CG), which were made from vegetable oil (CGS) and a mix of animal fat + % soybean oil (CGA). In experiment I, a digestibility assay was conducted using 32 crossbred piglets (19.20±1.52 kg). The experimental unit consisted of one pig, with a total of four experimental units per diet. The glycerine levels used in the digestibility assay were 4, 8, and 12% of the basal diet (corn + soybean based). The digestible (DE) and metabolizable energy (ME) values of glycerine were estimated by regression of DE and ME intake (kcal/kg) vs. glycerine intake (kg). The values (as-fed basis) of DE and ME (kcal/kg) obtained were: CGS =... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biodiesel; Co-product; Digestibility; Glycerol. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000700014 |
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| Gianfelici,MF; Ribeiro,AML; Penz Jr,AM; Kessler,AM; Vieira,MM; Machinsky,T. |
| The objective of the experiment was to determine the Apparent Metabolizable Energy corrected for nitrogen (AMEn) of a glycerin product derived from biodiesel production for broilers. A number of 35 male Ross 308 broilers, with 35 days of age was fed ad libitum diets containing 0, 5, 10, 15, or 20% glycerin. AMEn was determined using total excreta collection, with four days of adaptation and three days of collection. Increasing glycerin intakes resulted in increased water excretion. Glycerin AMEn varied as a function of dietary inclusion levels, and a cubic equation was identified by regression analysis. Maximum AMEn level- 4890 kcal/kg DM- was obtained with 15% glycerin inclusion. However, this level caused excessive water excretion, making its use... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glycerol; Metabolism; Water excretion. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2011000400006 |
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| Moraes,PO; Ceron,MS; Borille,R; Gianluppi,RDF; Lovato,GD; Cardinal,KM; Ribeiro,AML. |
| ABSTRACT The experiment was conducted to study the effect of pure glycerin supplementation (GLYC) in the drinking water of broilers subjected to heat stress and feed restriction. Water with 0, 1, or 2% glycerin was provided ad libitum to broilers in six hours of feed restriction. The birds were housed in two environments: thermoneutral (TN) - 25 ° C, and cyclic heat stress (HS) - 12h with 250C, 6h with 320C, 3h of 250 to 320C and 3h of 320 to 250C. The experimental design was randomized in a factorial arrangement of 2 x 3 + 2, with three GLYC levels, two environments and one control group with ad libitum feeding each environment. When submitted to HS, broiler receiving 2% glycerin presented higher weight gain (WG), water consumption (WC), feed intake (FI)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Environmental temperature; Feed restriction; Glycerol; Performance; Water consumption. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000300413 |
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| Peña,JEM; Vieira,SL; Borsatti,L; Pontin,C; Rios,HV. |
| Acidulated soy soapstock (ASS) and lecithin (LEC) are by-products from processing soy oil (SO) for human consumption, whereas glycerol (GLY) can be obtained through the transesterification of vegetable oils during the production of biodiesel. These are valuable by-products for poultry feeds that have been underutilized in many parts of the world. One study was conducted to estimate the AMEn of ASS, LEC, GLY as well as of their mixture (MIX: 85% ASS, 5% LEC and 10% GLY). Two hundred and sixty Cobb 500 female broilers of 20 days of age were housed in steel wire battery cages in a controlled temperature room for broilers. A completely randomized (energy sources x fat inclusion level) factorial design was applied, with 4 replicates of three birds per... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acidulated soapstock; Broiler; Glycerol; Lecithin. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000400015 |
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| Rakicka,Magdalena; Rywińska,Anita; Cybulski,Krzysztof; Rymowicz,Waldemar. |
| Abstract Various chemical compounds, including surfactants, when introduced to culture media may increase the permeability of cellular membranes and thereby affect the quantity of metabolites excreted by cells. The aim of the present study was to evaluate the impact of detergents including Triton X-100, Span 20 and Tween 80 on erythritol production from glycerol by Yarrowia lipolytica Wratislavia K1 in a shake-flask experiment, batch and fed-batch cultures. When Span 20 was added to a fed-batch culture with glycerol as a carbon source (300 g L-1), erythritol production increased by 15% compared to the culture without the surfactant where it reached 142 g L-1 after 5 days, which corresponded to 0.47 g g-1 yield and productivity of 1.1 g L-1 h-1. Therefore,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Erythritol; Glycerol; Span 20; Surfactants; Yarrowia lipolytica. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822016000200417 |
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| Freitas,ES de; Soldá,A; Calegari,DL; Munaretto,FC; Dietrich,GF; Back,A. |
| Serum is widely used for the purpose of monitoring and diagnosis support for most of poultry diseases. In the case of the serum plate agglutination test (SPA), commonly used to detect antibodies for Salmonella Pullorum (SP), Mycoplasma gallisepticum (MG) and Mycoplasma synoviae (MS), serum cannot be frozen because it may result in false positive. Without freezing, serum can last only for a few days. In this experiment, glycerin was evaluated as a serum preservering agent. About 50 samples for each disease and analyzed by SPA test previously were separated. Glycerin was added to serum from commercial chickens, with and without antibodies for SP, MG and MS, in the proportion of 1:1 (serum:glycerin) and kept at refrigerated conditions (2 to 8 ºC). For four... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Seroagglutination; Glycerol; Preservation; Refrigeration; Shelf life. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000300015 |
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| Rocha,Karlyene Sousa da; Parente,Henrique Nunes; Parente,Michelle de Oliveira Maia; Ferreira,Evandro Maia; Araújo,Jocélio dos Santos; Queiroga,Rita de Cássia Ramos do Egypto; Madruga,Marta Suely; Batista,Ana Sancha Malveira. |
| The objectives of this trial were to evaluate the fatty acid profile, chemical composition, and sensory effects of crude glycerin on the longissimus dorsi muscle of crossbred Boer goat kids. Twenty crossbred Boer goat kids (20.8±2.9 kg of BW at slaughter) were used in a completely randomized block design to determine the effect of partial replacement of corn by crude glycerin on chemical composition, longissimus dorsi muscle fatty acid profile, and sensory characteristics of meat. Kids were penned individually for 51 d and fed an isonitrogenous (140.0±2.0 g.kg-1 CP, DM basis) diet composed of 700 g.kg-1 concentrate and 300 g.kg-1 Tifton (Cynodon sp.) hay. Increasing levels of crude glycerin (80.0 g/100 g glycerol, DM basis) were 0, 40, 80 or 120 g.kg-1.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glycerol; Meat flavor; Meat quality. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982015000700263 |
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| Registros recuperados: 46 | |
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