Consulta: subjectFacets:"Fibers"
Registros recuperados: 12
Data/hora: 12/06/2024 07:16:39

Efeito do plantio em fileira dupla na qualidade da fibra do algodoeiro irrigado-cultivar CNPA 7H
Provedor de dados: 14
Autores: LUZ, M. J. da S. e; BARRETO, A. N.; BEZERRA, R. C.; SANTOS, J. W. dos; AMORIM NETO, M da S.
Entre os produtos do algodoeiro a fibra e a mais importante, por ser a materia prima mais utilizada pelas industrias textil e de confeccao, a nivel nacional e internacional. Portanto, todo avanco tecnologico que vise aumentar o rendimento desta malvicea devera envolver estudos sobre o seu efeito nas caracteristicas intrinsecas da fibra.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Configuracao do plantio; Caracteristicas de fibra; Brasil; Nordeste; Fibers; Characteristics.; Algodão; Gossypium Hirsutum; Irrigação.; Cotton; Irrigation.
Ano: 1997
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/270010

Influence of Finish Treatment on the Durability of Aramid Fibers Aged Under an Alkaline Environment
Provedor de dados: 5
Autores: Derombise, Guillaume; Van Schoors, Laetitia Vouyovitch; Messou, Marie-fleur; Davies, Peter.
Aramid fibers are high-performance materials which have been used in ropes and protective clothing for many years. They are also now being proposed in geo-textiles for ground reinforcement. The influence of the surface finish composition and content has been studied in the field of cables and textiles, but there is no published data concerning the effect of a finish treatment on the hydrolytic degradation. Aramid fibers with different finish contents have been aged in an alkaline environment. The degradation has been identified by FTIR, viscosimetry, TGA, SEM, and tensile tests. For Technora fibers, the presence of finish appears to limit the tensile strength loss of aramid fibers at pH 11 by limiting abrasion, as well as bulk and surface degradation. For...
Tipo: Text
Palavras-chave: Aramids; Fibers; Aging; Finish; Hydrolysis.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00006/11702/8987.pdf

A preliminary survey of foliar sclerenchyma in neotropical Loranthaceae
Provedor de dados: 16
Autores: Kuijt, J.; Lye, D.
The foliar sclerenchyma of all genera of neotropical Loranthaceae is surveyed by means of cleared leaves, using selected species. Three general categories of sclerenchyma are recognized. Fibers may form discontinuous or continuous bundles associated with veins or, more rarely, occur as individual cells. Sclereids, often of the astrosclereid type, are present in varying concentrations, or may be absent. Cristarque cells are very common, and occasionally extremely abundant, but are lacking in several genera. The survey includes information on terminal tracheids which are almost invariably present. Attention is drawn to the systematic significance of sclerenchyma where warranted.
Tipo: Article / Letter to the editor
Palavras-chave: Neotropical Loranthaceae; Cristarque cells; Fibers; Sclereids; Terminal tracheids.
Ano: 2005
URL: http://www.repository.naturalis.nl/record/526023

Wood anatomy and charcoal quality of Piptadenia gonoacantha
Provedor de dados: 190
Autores: Damásio, Renato Augusto Pereira; Pereira, Bárbara Luísa Corradi; Oliveira, Aylson Costa; Cardoso, Marco Túlio; Vital, Benedito Rocha; Carvalho, Ana Márcia Ladeira Macedo.
Due to the lack of information about wood properties and charcoal quality from native species, this work was carried out aiming at to characterize the wood anatomical structure of Piptadenia gonoacantha and determine the yield and properties of charcoal. The wood anatomy was described, and it was determined the fibers and vessels dimensions, basic density and higher heating value (HHV). Bulk density, chemical analysis, and HHV were determined for charcoal. The average vessel diameter was 121.30 μm, with 15 vessels mm-2. The fiber dimensions were: length, 0.82 mm, width, 17.54 μm, lumen diameter, 8.02 μm, wall thickness, 4.76 μm, and wall fraction of 54.28%. The basic wood density was 590 kg m-³ and HHV was 4650 kcal kg-1. The charcoal yield was 37.10%. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Heating value; Fibers; Wood density Recursos Florestais; Engenharia Florestal; Anatomia da Madeira Poder calorífico; Fibras; Densidade da madeira.
Ano: 2013
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/505

Viability of peach palm by-product, Spirulina platensis, and spinach for the enrichment of dehydrated soup
Provedor de dados: 86
Autores: Los,Paulo Ricardo; Simões,Deise Rosana Silva; Leone,Roberta de Souza; Bolanho,Beatriz Cervejeira; Cardoso,Taís; Danesi,Eliane Dalva Godoy.
Abstract: The objective of this work was to develop dehydrated soup formulations using flour from peach palm by-product (PPB), Spirulina platensis or spinach, as well as to evaluate their composition by physical, chemical, instrumental, and sensory methods. Four formulations were developed: standard, PPB flour, PPB flour and S. platensis, and PPB flour and spinach. The samples were analyzed for proximate composition, chlorophyll content, total phenolic compounds, antioxidant activity, color, viscosity, water absorption, and microbiological parameters. The sensory characterization was performed by the check-all-that-apply method. The soups containing spinach or S. platensis presented the highest protein contents of 3.3 and 4.6 g 100 g-1, respectively. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bactris gasipaes; Spinacia oleracea; Antioxidant activity; Check-all-that-apply; Fibers; Functional foods.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018001101259

Small intestine development of laying hens fed different fiber sources diets and crude protein levels
Provedor de dados: 89
Autores: Praes,MFFM; Pereira,AA; Sgavioli,S; Duarte,KF; Alva,JCR; Domingues,CH de F; Puzzoti,MM; Junqueira,OM.
The objective of the presente study was to evaluate the effects on different dietary fiber sources and crude protein levels on the intestinal morphometry of commercial layers. Isa Brown® layers with 48 weeks of age were distributed in a completely randomized experimental design with a 3 x 2 + 1 factorial arrangement, resulting in seven treatments with seven replicates of eight birds each. At the end of the fourth experimental period (28 days each), birds were 64 weeks of age and were randomly chosen (two birds per replicate, totaling 14 birds per treatment), weighed and sacrificed by neck dislocation. Their intestine was dissected and the duodenum, jejunum and ileum were collected for subsequent analysis of intestinal morphometry. Treatments consisted of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crude protein; Fibers; Intestinal development.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2011000300004

Drying kinetics of fermented grape pomace: Determination of moisture effective diffusivity
Provedor de dados: 91
Autores: Deamici,Kricelle M.; Oliveira,Lucas C. de; Rosa,Gabriela S. da; Oliveira,Elizangela G. de.
ABSTRACT The aim of this study was to obtain the equilibrium moisture content of grape (variety ‘Tannat’) pomace through desorption isotherms, to evaluate the drying kinetics, determine the coefficient of effective diffusivity and physico-chemically characterize the grape pomace and the product obtained after drying. The desorption isotherms were determined at 50, 60 and 70 ºC and the experimental data were fitted using the GAB model (Gugghenheim, Anderson and de Boer). Drying was evaluated using a 22 factorial experimental design with three center points and effective diffusivity was obtained through the diffusion model of Fick’s second law. The grape pomace was characterized regarding the contents of moisture, protein, carbohydrates, lipids, ash and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Byproducts; Isotherms; Proteins; Fibers.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000800763

Nutritional composition of silage from pearl millet cultivars with the inclusion of soy hulls
Provedor de dados: 124
Autores: Trevisoli,Francismar de Camargo Anchieta; França,Adil Fernandes de Souza; Corrêa,Daniel Staciarini; Trevisoli,Priscila Anchieta; Oliveira,Leonardo Guimarães de.
ABSTRACT The nutritional composition of silages from the millet cultivars BRS 1501, ADR 500 and ADR 8010 was evaluated with the inclusion of soy hulls at 0, 3, 6 and 10%. The experimental design was completely randomized in a 3 x 4 factorial scheme with 3 replications. The dry matter content of the silages was affected by the inclusion of the soy hulls, ranging from 16.20% (ADR 8010) to 23.27% (BRS 1501) for the inclusion of 0 and 10% respectively. The levels of crude protein ranged from 9.46 to 10.79%, with significant differences between varieties being seen with the inclusion of 6% and 10% soy hulls. Inclusion of the hulls reduced the mineral matter content of the silages, with a change of 8.62% in the control treatment, up to an average of 6.38% at the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fibers; Dry matter; Pennisetum glaucum; Crude protein.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000300540

Management of the palm Astrocaryum chambira Burret (Arecaceae) in northwest Amazon
Provedor de dados: 39
Autores: García,Néstor; Galeano,Gloria; Mesa,Laura; Castaño,Nicolás; Balslev,Henrik; Bernal,Rodrigo.
We studied the management of the fiber-producing chambira palm Astrocaryum chambira by indigenous people in the Colombian Amazon. Between 2009 and 2012, we visited four communities and two marketing centers, where we interviewed 12 people. In addition, we specifically observed A. chambira harvesting, processing, and commercialization; studied palm populations at five localities; measured leaf production rate; and integrated secondary data. At least 21 aboriginal groups in the Colombian Amazon use chambira fiber. The palm grows in association with human communities, and it has been widely used and managed in past agroforestry systems. The fiber is obtained from the unexpanded leaves of juvenile or adult palms, and harvesting is often unsustainable because...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agroforestry; Ethnic groups; Fibers; Handicraft; Sustainable harvest.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062015000100045

Centesimal composition and physical-chemistry analysis of the edible mushroom Lentinus strigosus occurring in the Brazilian Amazon
Provedor de dados: 42
Autores: SALES-CAMPOS,CECI; ARAUJO,LIDIA M.; MINHONI,MARLI T.A.; ANDRADE,MEIRE C.N.
The centesimal composition and the physical and chemical analyses of Lentinus strigosus, an edible mushroom occurring in the Brazilian Amazon and produced in alternative substrates based on wood and agroindustrial residues, were evaluated. For this purpose, the C, N, pH, soluble solids, water activity, protein, lipids, total fiber, ash, carbohydrate, and energy levels were determined. The substrates were formulated from Simarouba amara Aubl. (“marupá”), Ochroma piramidale Cav. Ex. Lam. (“pau-de-balsa”) and Anacardium giganteum (“cajuí”) sawdust and Bactris gasipaes Kunth (“pupunheira”) stipe and Saccharum officinarum (sugar cane bagasse). The results indicated that the nutritional composition of L. strigosus varied with the substrate of cultivation; the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Edible mushroom; Nutritional value; Minerals; Protein; Fibers.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000401537

Peculiar anatomical traits, high durability, and potential ornamental use of Cyclanthaceae as fresh foliage
Provedor de dados: 42
Autores: MEDINA,MARIA CAMILA; HOYOS-GÓMEZ,SAÚL E.; DEMARCO,DIEGO; TUBERQUIA,DINO.
ABSTRACT Wild plant species with potential for use as ornamental green foliage are often reported. Nevertheless, there are few studies evaluating morphological and anatomical aspects associated with this use. Preliminary trials suggest that the species of Sphaeradenia (Sander ex Mast.) Harling, a Cyclantaceae that occurs from Costa Rica to Peru, is suitable to be used as fresh foliage because of attractiveness of their leaves in vase and its durability without showing tissue damage, compared with other genera of this family. Through the study of anatomical characters, it is possible to predict the potential of a species that can serve as ornamental foliage. In this study, three foliar anatomical features (thickness of the cuticle and leaf, and percentage...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anatomy; Cuticle; Fibers; Mesophyll; Sphaeradenia laucheana.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000502399

Byproducts of orange extraction: influence of different treatments in fiber composition and physical and chemical parameters
Provedor de dados: 60
Autores: Andrade,Juliana Maria de Mello; Jong,Erna Vogt de; Henriques,Amélia Teresinha.
In this work we evaluated the variability in fiber content and physical and chemical parameters of byproducts from orange juice extraction. Five different treatments and two drying methods were evaluated. The results indicate that drying by lyophilization was better than that drying in an oven. The pH ranged from approximately 3.47 to 3.96. The variation in moisture values was 9.22% ± 0.02 to 18.48 ± 0.52%. The total dietary fiber content in the resulting flours ranged from 42.44% to 62.74%. The soluble and insoluble dietary fiber contents differed among the samples, ranging from 5.04% to 19.95% for the first fiber type, and 23.96% to 57.70% for the second. In conclusion, three treatments, associated with freeze-drying, showed promising results in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Orange/byproducts/evaluation; Orange juice/extraction; Orange/byproducts/fiber content; Fibers; Orange/byproducts/physical-chemical parameters.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502014000300473