Results 41 to 50 of about 12,778 (205)

Composición química y morfología de raíces de cinco especies arbustivas nativas y su influencia en la fijación del suelo

open access: yesBotan‪ical Sciences, 2021
Antecedentes: El uso de vegetación es una práctica recurrente para la fijación de suelo y dependerá de las características del sistema radical. Preguntas e hipótesis: La composición química de las raíces es diferentes entre especies e influenciada ...
Brenda Fernández-Villarreal   +3 more
doaj   +1 more source

Nanoparticle‐Assisted Bioethanol Production From Various Lignocellulosic Biomass

open access: yesInternational Journal of Energy Research, Volume 2025, Issue 1, 2025.
This study explored nanoparticle (NP)‐assisted bioethanol production from seven lignocellulosic biomass (LCB) types: corn cob (Zea mays), wheat bran (Triticum aestivum), sugarcane (Saccharum officinarum), magnolia (Magnolia grandiflora), London plane (Platanus acerifolia), chestnut (Castanea sativa), and wire grass (Aristida).
Anju Singh, Beom Soo Kim, Prakash Bhuyar
wiley   +1 more source

Graftização de partículas de lignina pelo PLLA [PDF]

open access: yes, 2014
Cada vez mais, a lignina vem dispertanto interesse na área de materiais, devido às suas boas propriedades mecânicas, químicas, baixo custo e baixo impacto ambiental.
Dick, Teo Atz
core   +1 more source

CARACTERÍSTICAS ANATÔMICAS RELACIONADAS AO VALOR NUTRITIVO DE GRAMÍNEAS FORRAGEIRAS [PDF]

open access: yesCiência Rural, 2002
Entre as características anatômicas relacionadas ao valor nutritivo de gramíneas, destacam-se a proporção de tecidos e a espessura da parede celular. Tais características apresentam altas correlações com os teores de fibra, de lignina e de proteína bruta
Domingos Sávio Campos Paciullo
doaj   +1 more source

Standing and shed litters alter plant growth in disturbed and undisturbed soils differently

open access: yesFunctional Ecology, Volume 38, Issue 7, Page 1537-1548, July 2024.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Plant species affect key ecosystem processes like nutrient cycling and overall ecosystem productivity through their litter. The outcome of litter effects is largely determined by its decomposability, which directly effects soil properties.
Ondřej Mudrák   +4 more
wiley   +1 more source

Correlação entre digestibilidade in vitro da parede celular e três métodos analíticos para a avaliação quantitativa da lignina

open access: yesRevista Brasileira de Zootecnia, 2001
Três métodos analíticos para a estimativa do conteúdo de lignina na parede celular, em diferentes frações vegetais, de sete espécies forrageiras, foram comparados.
Fukushima Romualdo Shigueo   +1 more
doaj  

Relação entre qualidade e liberação de N por plantas do semiárido usadas como adubo verde Relationship between biomass quality and N mineralization in plant species used as green manure in semi-arid Brazil

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2011
O uso de plantas como adubo verde pode ser uma alternativa para melhorar a fertilidade do solo porém a liberação de nutrientes desses adubos para o solo irá depender dos teores de lignina, polifenóis (PP) e N no material vegetal utilizado.
Romildo N. Alves   +3 more
doaj   +1 more source

Abaca fiber as an efficient reinforcement for high mechanical performance in metakaolin‐based geopolymers

open access: yesInternational Journal of Applied Ceramic Technology, Volume 21, Issue 2, Page 1154-1169, March/April 2024.
Abstract This study introduces an innovative method for efficiently integrating abaca fibers into a potassium‐based geopolymer (KGP) material. Geopolymers often suffer from brittleness, and composite designs have been explored as a solution to enhance their strength and ductility.
Ana Carolina Constâncio Trindade   +4 more
wiley   +1 more source

Análise conformacional de modelos de lignina [PDF]

open access: yesQuímica Nova, 2001
The conformational equilibrium for two 5,5' biphenyl lignin models have been analyzed using a quantum mechanical semiempirical method. The gas phase and solution structures are discussed based on the NMR and X-ray experimental data. The results obtained showed that the observed conformations are solvent-dependent, being the geometries and the ...
openaire   +4 more sources

Physiological quality of soybean seeds produced under artificial rain in the pre-harvesting period

open access: yesJournal of Seed Science, 2016
: The objective of this experiment was to evaluate responses of soybean cultivars seeds (with different levels of lignin) considering harvest postponement under the incidence of water and the effect of storage.
Elisa de Melo Castro   +4 more
doaj   +1 more source

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