Obtaining and Optimization of Cellulose Pulp from Leaves of Agave tequilana Weber Var. Blue. Preparation of Handmade Craft Paper

2018 ◽  
Vol 10 (8) ◽  
pp. 2379-2395 ◽  
Author(s):  
Francisco Prieto-García ◽  
Edith Jiménez-Muñoz ◽  
Otilio A. Acevedo-Sandoval ◽  
Rodrigo Rodríguez-Laguna ◽  
Roberto A. Canales-Flores ◽  
...  
Keyword(s):  
Agave Tequilana ◽  
Cellulose Pulp

Esquemas de contratos agrícolas para la producción de Agave Tequilana Weber en la región de Tequila, Jalisco.

2019 ◽  
Vol 15 (4) ◽  
pp. 619-637
Author(s):  
Lusmila Herrera Pérez ◽  
Esteban Valtierra Pacheco ◽  
Ignacio Ocampo Fletes ◽  
Mario A. Tornero Campante ◽  
Jorge A. Hernández Plascencia ◽  
...  
Keyword(s):  
Agave Tequilana

La producción de Agave tequilana Weber var. azul sufre de crisis cíclicas derivadas de las fluctuaciones de los precios de agave y períodos de sobreoferta y escasez del producto en el mercado. El establecimiento de contratos de producción y compraventa entre agaveros e industrias tequileras ha sido una de las alternativas propuestas para reducir los efectos de estas crisis cíclicas y estabilizar el mercado del agave. El objetivo del presente estudio fue identificar los tipos de contratación para la producción y comercialización de Agave tequilana en la cadena productiva de agave-tequila del municipio de Tequila, Jalisco. Se encuestó a una muestra de 50 productores de agave seleccionados al azar, quienes producen agave bajo tres tipos de contratos: a)Arrendamiento; b) Aparcería; y c) Mediería. El contrato por arrendamiento es el más frecuente y ha desplazado a los esquemas informales de aparcería y mediería. Los arrendadores realizan las labores del agave principalmente en monocultivo y los aparceros y medieros en policultivo. El factor común entre la aparcería y la mediería es que los propietarios tienen acceso a sus predios y la diferencia principal radica en la forma de apropiación de la cosecha de agave.

Effect of cellulose pulp fibres on the physical, mechanical, and thermal performance of extruded earth-based materials

2021 ◽  
Vol 39 ◽  
pp. 102259
Author(s):  
Tido Tiwa Stanislas ◽  
Josepha Foba Tendo ◽  
Ronaldo S. Teixeira ◽  
Emeso B. Ojo ◽  
Gbétoglo Charles Komadja ◽  
...  
Keyword(s):  
Thermal Performance ◽  
Cellulose Pulp ◽  
Pulp Fibres

scholarly journals Structural and Morphological Analysis of Cellulose Pulp Produced from the Fractionation of Eucalyptus obliqua Sawdust Using γ-Valerolactone

ACS Omega ◽  
2021 ◽  
Vol 6 (6) ◽  
pp. 4126-4136
Author(s):  
Raymond M. Trevorah ◽  
Tien Huynh ◽  
Robert Brkljača ◽  
Maazuza Z. Othman
Keyword(s):  
Morphological Analysis ◽  
Cellulose Pulp

scholarly journals Total Organic Carbon Assessment in Soils Cultivated with Agave tequilana Weber in Jalisco, Mexico

2020 ◽  
Vol 13 (1) ◽  
pp. 208
Author(s):  
Celia De La Mora-Orozco ◽  
José G. Flores-Garnica ◽  
Lucia M. Vega-Ramírez ◽  
Irma J. González-Acuña ◽  
Juan Nápoles-Armenta ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Total Organic Carbon ◽  
Management Practices ◽  
Water Saturation ◽  
Management Strategies ◽  
Information Criterion ◽  
Agave Tequilana ◽  
Tukey Test ◽  
Significant Difference ◽  
Agriculture Management

The Agave tequilana Weber is an important commercial crop in the State of Jalisco, Mexico. However, the agave cultivation generates significant soil loss. For that reason, knowledge about the implementation of the agriculture management practices, such as manure application and the combination of inorganic fertilizers and manure, are relevant. The objective of this research was to determine the effect of agricultural management practices on the total organic carbon (TOC) in the soil in three study locations: Arandas, Tepatitlán, and Acatic in the Altos Sur region of Jalisco. A random sampling was carried out in each study location, 12 samples were obtained for each location at 0–30 cm deep, and a total of 36 samples were analyzed. The evaluated parameters were the potential hydrogen (pH), electrical conductivity (EC), bulk density (BD), soil-water saturation (SWS), total nitrogen (TN), and total organic carbon (TOC). Basic statistics and correlations between parameters were generated. In addition, to estimate TOC from a multivariate analysis, models were developed based on the lowest Akaike information criterion (AIC) and of the classification and regression trees (CART). ANOVA and Tukey test were determined. Results demonstrated a significant difference in the TOC percentages between the study locations. The Tukey test showed that there is no difference in TOC content between the Tepatitlán and Arandas sites, but there is a difference between these two sites and the Acatic. The latter resulted with the lowest values of TOC. Long-term studies are recommended to develop crop management strategies.

Toxicity and recalcitrant compound removal from bleaching pulp plant effluents by an integrated system: anaerobic packed-bed bioreactor and ozone

2010 ◽  
Vol 61 (1) ◽  
pp. 199-205 ◽  
Author(s):  
T. R. Chaparro ◽  
C. M. Botta ◽  
E. C. Pires
Keyword(s):  
Pulp Mill ◽  
Packed Bed ◽  
Ultraviolet Absorption ◽  
Integrated System ◽  
Packed Bed Bioreactor ◽  
Cellulose Pulp ◽  
Adsorbable Organic Halides ◽  
Organic Halides ◽  
Before And After ◽  
Absorption Measurements

Effluents originated in cellulose pulp manufacturing processes are usually toxic and recalcitrant, specially the bleaching effluents, which exhibit high contents of aromatic compounds (e.g. residual lignin derivates). Although biological processes are normally used, their efficiency for the removal of toxic lignin derivates is low. The toxicity and recalcitrance of a bleached Kraft pulp mill were assessed through bioassays and ultraviolet absorption measurements, i.e. acid soluble lignin (ASL), UV280, and specific ultraviolet absorption (SUVA), before and after treatment by an integrated system comprised of an anaerobic packed-bed bioreactor and oxidation step with ozone. Furthermore, adsorbable organic halides (AOX) were measured. The results demonstrated not only that the toxic recalcitrant compounds can be removed successfully using integrated system, but also the ultraviolet absorption measurements can be an interesting control-parameter in a wastewater treatment.

Effects of Agave tequilana fructans with different degree of polymerization profiles on the body weight, blood lipids and count of fecal Lactobacilli/Bifidobacteria in obese mice

2013 ◽  
Vol 4 (8) ◽  
pp. 1237 ◽  
Author(s):  
Ana Laura Márquez-Aguirre ◽  
Rosa Maria Camacho-Ruiz ◽  
Myriam Arriaga-Alba ◽  
Eduardo Padilla-Camberos ◽  
Manuel Reinhart Kirchmayr ◽  
...  
Keyword(s):  
Body Weight ◽  
Blood Lipids ◽  
Degree Of Polymerization ◽  
The Body ◽  
Agave Tequilana ◽  
Obese Mice

Karyotype studies in cultivars of Agave tequilana Weber

Caryologia ◽  
2008 ◽  
Vol 61 (2) ◽  
pp. 144-153 ◽  
Author(s):  
Palomino Guadalupe ◽  
Javier Martínez ◽  
Ignacio Méndez
Keyword(s):  
Agave Tequilana

scholarly journals Biocomposite of Cassava Starch Reinforced with Cellulose Pulp Fibers Modified with Deposition of Silica (SiO2) Nanoparticles

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Joabel Raabe ◽  
Alessandra de Souza Fonseca ◽  
Lina Bufalino ◽  
Caue Ribeiro ◽  
Maria Alice Martins ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Sol Gel ◽  
Fiber Surface ◽  
Sio2 Nanoparticles ◽  
Thermoplastic Starch ◽  
Cassava Starch ◽  
Sem Analysis ◽  
Pulp Fibers ◽  
Moisture Adsorption ◽  
Cellulose Pulp

Eucalyptuspulp cellulose fibers were modified by the sol-gel process for SiO2superficial deposition and used as reinforcement of thermoplastic starch (TPS). Cassava starch, glycerol, and water were added at the proportion of 60/26/14, respectively. For composites, 5% and 10% (by weight) of modified and unmodified pulp fibers were added before extrusion. The matrix and composites were submitted to thermal stability, tensile strength, moisture adsorption, and SEM analysis. Micrographs of the modified fibers revealed the presence of SiO2nanoparticles on fiber surface. The addition of modified fibers improved tensile strength in 183% in relation to matrix, while moisture adsorption decreased 8.3%. Such improvements were even more effective with unmodified fibers addition. This result was mainly attributed to poor interaction between modified fibers and TPS matrix detected by SEM analysis.

scholarly journals 3D printing of a bio-based ink made of cross-linked cellulose nanofibrils with various metal cations

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
J. Benedikt Mietner ◽  
Xuehe Jiang ◽  
Ulrica Edlund ◽  
Bodo Saake ◽  
Julien R. G. Navarro
Keyword(s):  
3D Printing ◽  
Divalent Cations ◽  
Cellulose Nanofibrils ◽  
Three Dimensional ◽  
Metal Cations ◽  
Cross Link ◽  
Cellulose Pulp ◽  
Freeze Dried ◽  
3D Printed ◽  
Metallic Cations

AbstractIn this work, we present an approach to cross-link cellulose nanofibrils (CNFs) with various metallic cations (Fe3+, Al3+, Ca2+, and Mg2+) to produce inks suitable for three-dimensional (3D) printing application. The printability of each hydrogel ink was evaluated, and several parameters such as the optimal ratio of Mn+:TOCNF:H2O were discussed. CNF suspensions were produced by mechanical disintegration of cellulose pulp with a microfluidizer and then oxidized with 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO). Finally, metal cations were introduced to the deprotonated TEMPO-oxidized CNF (TOCNF) suspension to cross-link the nanofibrils and form the corresponding hydrogels. The performances of each gel-ink were evaluated by rheological measurements and 3D printing. Only the gels incorporated with divalent cations Ca2+ and Mg2+ were suitable for 3D printing. The 3D printed structures were freeze-dried and characterized with Fourier transform infrared spectroscopy (FT-IR) and Scanning Electron Microscopy (SEM). The better interaction of the TOCNFs with the divalent metallic cations in terms of printability, the viscoelastic properties of the inks, and the variation trends owing to various metal cations and ratios are discussed.

Cellulose-Pulp-Based Stretchable Composite Film with Hydroxyethyl Cellulose and Turmeric Powder for Packaging Applications

2021 ◽  
Author(s):  
Chaehyun Jo ◽  
Balasubramanian Rukmanikrishnan ◽  
Prabakaran D. S. ◽  
Srinivasan Ramalingam ◽  
Jaewoong Lee
Keyword(s):  
Composite Film ◽  
Hydroxyethyl Cellulose ◽  
Cellulose Pulp
Sign in / Sign up

Export Citation Format

Share Document