Parchment
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. Particles of Coffee Wastes as Reinforcement in Polyhydroxybutyrate (PHB) Based Composites
The objective of the present study was to evaluate lignocellulosic particles from sub-products of the coffee industry (coffee parchment - CP and husk - CH) into polyhydroxybutyrate (PHB) as a promising reinforcing filler in the biocomposites. The effects of type (CP or CH) and content (neat, 10% and 20%) of coffee wastes on the thermal, mechanical, microstru
Mat. Res.. Publicado em: 2015-06
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2. AdequaÃÃo da metodologia do teste de tetrazÃlio para avaliaÃÃo da viabilidade de sementes de cafà no armazenamento / Adaptation of the methodology of the tetrazolium test to assess the viability of coffee seeds during storage
Germination of coffee seeds occurs in a slow and uneven way, making it difficult to obtain results of quality evaluation of lots in time for the propagation. One of the factors that delay germination is the presence of parchment that acts as a physical barrier to water and gases entrance. The tetrazolium test is an alternative for fast evaluation of seeds vi
Publicado em: 2009
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3. SECAFÉ Parte I: modelamiento y simulación matemática en el secado mecánico de café pergamino
A Microsoft Visual Basic 6.0 parchment coffee drying program was implemented. Two separate programs, based on the Thompson and Michigan State University (MSU) models, using Cenicafé coffee parameters, were successfully tested for the evaluation of the performance of all mechanical coffee dryers existing in Colombia. The results obtained by means of simulati
Revista Brasileira de Engenharia Agrícola e Ambiental. Publicado em: 2008-08
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4. SECAFÉ Parte II: recomendaciones para el manejo eficiente de los secadores mecánicos de café pergamino
A Microsoft Visual Basic 6.0 parchment coffee drying program was developed. Two separate programs, based on Thompson and MSU models and using Cenicafé's coffee parameters were successfully tested for the evaluation of the performance of all mechanical coffee dryers existing in Colombia. Based on the good results, a unique simulation program was implemented
Revista Brasileira de Engenharia Agrícola e Ambiental. Publicado em: 2008-08
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5. Preparação e caracterização de carvão ativado produzido a partir de resíduos do beneficiamento do café
Coffee fruit processing is one of the most polluting activities in agriculture due to the large amount of waste generated in the process. In this work, coffee parchment was employed as precursor for the production of carbons activated with ZnCl2 (CAP). The material was characterized using N2 adsorption/desorption at 77 K, Fourier transform infrared spectrosc
Química Nova. Publicado em: 2008
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6. Drying and storage of coffee: qualitative and sanitary aspects. / Secagem e armazenamento do cafÃ: aspectos qualitativos e sanitÃrios
The present work aimed to study both quality and sanity during drying and storage of the parchment, floater, cherry and mixture coffees submitted to the natural drying on grounds with three different sorts of floors and two distinct drying layers. The experimental design of the drying step, was made up of a completely randomized design with the treatments ar
Publicado em: 2006
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7. Quality alterations of parchment coffee during storage / AlteraÃÃes qualitativas do cafà cereja descascado durante o armazenamento
In the coffee farms, the parchment coffee has been stored in bins or kept clean in jute bags. The biggest problem of the parchment coffee is the quick loss of quality during storage and consequently commercial value, while it is awaiting commercialization. This project had the objective of studying the alternative use of conditioning which will guarantee the
Publicado em: 2005
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8. Avaliação na educação física escolar: do mergulho à intervenção
The study aimed at characterizing, calling in question and intervening in the pedagogical practice used by a Physical Education teacher, specially in the evaluated practice, wanting to indicate new looks and perspectives. A municipal school from Vitória was the research locus, because it presented a net curriculum proposal and also for its work with a favor
Publicado em: 2005
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9. Aplicações da espectroscopia fotoacustica e ressonancia paramagnetica eletronica a materiais biologicos
In this work we have applied Photoacoustic Spectroscopy (PAS) and Electron Paramagnetic Resonance (EPR) to biological materials. Initially, two methods using PAS in the near-infrared for the determination of adulterant content in binary mixtures of coffee were presented. The basis of the methods is the establishment of calibration curves constructed from the
Publicado em: 1988
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10. Serum amine oxidase activity contributes to crisis in mouse embryo cell lines.
This paper reports the results of experiments to test the hypothesis that crisis of spontaneous transformation is caused by the hydrogen peroxide and/or aldehydes generated from endogenous polyamines by serum amine oxidase [amine: oxygen oxidoreductase (deaminating), EC 1.4.3.6]. After 4-5 weeks of culture, crisis occurred in 16 of 29 cell lines derived from