Results 1 to 10 of about 8,404 (154)

Hemicellulose Films from Curaua Fibers (Ananas erectifolius): Extraction and Thermal and Mechanical Characterization. [PDF]

Polymers (Basel), 2022
With growing environmental concerns over synthetic polymers, natural polymeric materials, such as hemicellulose, are considered a good sustainable alternative. Curaua fibers could be an excellent source of biopolymer as they have a relatively high hemicellulose content (15 wt%) and only a small amount of lignin (7 wt%).
Roldi-Oliveira M, Diniz LM, Elias AL, Luz SM.   +3 more
europepmc   +4 more sources

The complete chloroplast genome of Ananas comosus var. erectifolius (L.B. Smith) Coppens & Leal [PDF]

Mitochondrial DNA. Part B. Resources, 2022
Ananas comosus var. erectifolius (L.B. Smith) Coppens & Leal, a tropical plant from Bromeliaceae family, has immense applications, especially for fiber production of excellent quality.
Chaoyang Liu, Wei Zhang, Yehua He
doaj   +5 more sources

Investigations on Ananas erectifolius fiber/sawdust hybrid epoxy composites for sustainable building applications [PDF]

Scientific Reports
This study investigates the mechanical, thermal, morphological, antibacterial, and water absorption characteristics of Ananas erectifolius fiber (AEF) reinforced epoxy composites filled with sawdust particulates, aiming to develop sustainable ...
Palanivendhan Murugadoss, Kulmani Mehar, Yuvaraja Naik, Naveen Kumar Rajendran, Parin Kumar Patel, Kuldip Kumar Sahu, Deepali Dash, Kamakshi Priya Kumar   +7 more
doaj   +3 more sources

Chemical characterization of lignin and lipophilic fractions from leaf fibers of curaua (Ananas erectifolius) [PDF]

Journal of Agricultural and Food Chemistry, 2007
E-mail: delrio@irnase.csic.es (J.C. del Río)The chemical composition of leaf fibers of curaua (Ananas erectifolius), an herbaceous plant native of Amazonia, was studied.
Gutiérrez Suárez, Ana, Marques, Gisela, Río Andrade, José Carlos del   +2 more
core   +6 more sources

Efeito de ANA e TDZ na calogênese in vitro de curauá (Ananas erectifolius L.B.Smith).

Ornamental Horticulture, 2007
O curauá (Ananas erectifolius L. B. Smith) é uma bromélia originária do Complexo Amazônico cujas fibras naturais (biomassa renovável e biodegradável) substituem as de origem sintética na indústria, especialmente a automobilística, onde são empregadas na ...
Isaac Stringueta Machado, Leonardo Soriano, Allan Correia Gomes, Fernanda Bertozzo   +3 more
doaj   +3 more sources

Morfologia e viabilidade de grãos de pólen de acessos silvestres de abacaxi Morphology and viability of pollen grains from wild varieties of pineapple [PDF]

Ciência Rural, 2011
O objetivo do trabalho foi avaliar a viabilidade de grãos de pólen de acessos silvestres de abacaxi mediante a percentagem de germinação in vitro, crescimento do tubo polínico em duas temperaturas de incubação e uso de carmim acético.
Taliane Leila Soares, Everton Hilo de Souza, Mônica Lanzoni Rossi, Fernanda Vidigal Duarte Souza   +3 more
doaj   +4 more sources

Micropropagation of the Fiber-rich Amazonian Species Ananas erectifolius (Bromeliaceae) [PDF]

HortScience, 2008
The aim of the study was to develop a method for the in vitro propagation of Ananas erectifolius (Bromeliaceae), a fiber-rich Amazonian species. In vitro cultures were established from axillary buds of field-grown plants cultured on medium without plant growth regulators (PGRs).
Flávia D. Pereira, José Eduardo B.P. Pinto, Luciana D.S. Rosado, Helen C.A. Rodrigues, Suzan K.V. Bertolucci, Osmar A. Lameira   +5 more
openaire   +2 more sources

Hemicellulose Removal in Curaua (Ananas erectifolius) Fibers for Polyester Composites

Nova Scientia, 2019
Introducción Los tratamientos alcalinos extraen hemicelulosa de las fibras, las cuales pueden ser reusada en la manufactura de otros materiales, de la cual la fracción celulósica puede ser aplicada como un refuerzo en un compósito.
Beatriz S. Rodrígues, Rafael M. García, Rosineide M. Leão, Sandro C. Amico, Sandra M. Luz   +4 more
doaj   +4 more sources

Propriedades físicas e mecânicas de compósitos de cimento reforçados com fibra de curauá (Ananas erectifolius)

Engenharia Civil UM, 2022
O objetivo deste estudo é a caracterização de compósitos cimentícios com reforço de fibras longas de curauá. Estes compósitos são constituídos de matriz cimentícia composta por cimento CP V-ARI, areia, água e superplastificante. A substituição de materiais como o cimento por reforços de materiais naturais como a fibra de curauá se tornam objetos de ...
null A.M. Weber, null A. Matoski, null L. Cechin, null R.B. Tokarski   +3 more
openaire   +2 more sources

Stone Matrix Asphalt (SMA) with Construction Waste and Curauá Fiber (Ananas erectifolius)

Research, Society and Development, 2020
The SMA mixtures are characterized by a high void ratio, which favors binder draindown. In order to avoid this effect, fibers are added to the mixture, which in this case came from Curauá da Amazônia (Ananas erectifolius). The final composition studied resulted in 75% coarse aggregate, 15% fine aggregate, 10% filler, 0.3% of the Curauá fiber residue ...
Patrícia de Magalhães Aragão Valença, Anne Karollynne Castro Monteiro, Cláudia Ávila Barbosa, Carlos Eduardo Neves de Castro, Consuelo Alves da Frota   +4 more
openaire   +4 more sources