Isolation and characterization of cellulose nanoplatelets from the parenchyma cells of Agave salmiana

Chávez-Guerrero, L.; Sepúlveda-Guzmán, S.; Rodríguez-Liñan, Carolina; Silva-Mendoza, Julio; García-Gómez, Nora A.; Pérez‐Camacho, Odilia

doi:10.1007/s10570-017-1376-9

Cited by 14 publications

(5 citation statements)

References 37 publications

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“…In Sansevieria cylindrica fibres, the crystallite size is around 1.45 nm. This value is notably smaller than that of Ficus religiosa (5.18 nm) (Raj et al 2023), cotton (3.6–4.1 nm) (Caballero‐Caballero et al 2018), and even the recently explored plant of Cyperus platistylis (2.28 nm) (Chávez‐Guerrero et al 2017). These are all plants able to grow being immersed: in this situation, smaller crystallite size contributes to reduced water absorption and faster chemical reactivity when fibers are incorporated into a matrix medium (Al‐Waily et al 2017).…”

Section: Resultsmentioning

confidence: 87%

Extraction and characterization of fiber from the flower stalk of Sansevieria cylindrica

Palanisamy,

Rajan,

Mani

et al. 2024

Physiologia Plantarum

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A number of natural fibers are being proposed for use in composite materials, especially those extracted from local plants, especially those able to grow spontaneously as they are cost‐efficient and have unexplored potential. Sansevieria cylindrica, within the Asparagaceae (previously Agavacae) family, has recently been considered for application in polymer and rubber matrix composites. However, its characterization and even the sorting out of technical fiber from the stem remains scarce, with little available data, as is often the case when the fabrication of textiles is not involved. In this study, Sansevieria cylindrica fibers were separated down to the dimensions of a filament at an 8–15 micron diameter from the stem of the plant, then characterized physically and chemically, using Fourier transform infrared spectroscopy (FTIR), morphologically by scanning electron microscopy (SEM), as well as their thermal degradation, by thermogravimetric analysis (TGA). Their crystallinity surface roughness was measured by X‐ray diffraction (XRD) and atomic force microscopy (AFM), respectively. The results indicate over 70% cellulose fibers content with a very high crystallinity (92%) and small crystallite size (1.45 nm), which suggests a low water absorption, with thermal degradation peaking at 294°C. Despite this, due to the significant porosity of the cellular structure, the density of 1.06 g cm−3 is quite low for a mainly cellulose fiber. Roughness measurements indicate that the porosities and foamy structure result in a highly negative skewness (−3.953), in the presence of deep valleys, which may contribute to an effective relation with a covering resin.

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Section: Resultsmentioning

confidence: 87%

Extraction and characterization of fiber from the flower stalk of Sansevieria cylindrica

Palanisamy,

Rajan,

Mani

et al. 2024

Physiologia Plantarum

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“…e exoglucanases are responsible for the hydrolysis of the crystalline portions of cellulose [2]. Agave fibers have a high crystallinity index similar to commercial cellulose; therefore, enzymes are required to be active throughout the fermentation to hydrolyze the fibers [16,20]. e activities of endoglucanase and β-glucosidase increased until 6 and 8 days, respectively.…”

Section: Cellulase Productionmentioning

confidence: 99%

“…Previously, we isolated cellulose layers in the form of nanoplatelets with a thickness of less than 90 nm from the parenchymal cell wall of A. salmiana leaves [16]. We have also reported that these cellulose nanoplatelets are easier to hydrolyze than larger cellulose, due to their low lignin content, poor crystallinity, and greater surface area [13].…”

Section: Introductionmentioning

confidence: 99%

Agave Leaves as a Substrate for the Production of Cellulases by Penicillium sp. and the Obtainment of Reducing Sugars

Silva-Mendoza

Gómez-Treviño

López-Chuken

et al. 2020

Journal of Chemistry

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Lignocellulosic biomass can be used to obtain fermentable sugars by enzymatic hydrolysis, and also it serves as a carbon source to produce cellulases by solid-state fermentation. In this study, we propose the use of leaves of Agave salmiana as a carbon source to produce cellulases by the fungus Penicillium sp., isolated from the same plant. The crude enzymatic extract was used to obtain sugars from the hydrolysis of the parenchymal cells of the leaves. The enzymes produced were characterized (endoglucanase 14.4 U/g; exoglucanase 3.5 U/g; β-glucosidase 4.14 U/g). The enzymes showed activities at elevated temperatures: 50°C for endoglucanase and exoglucanase and 70°C for β-glucosidase. Furthermore, the crude enzymatic extract obtained was able to hydrolyze the parenchyma in 51.6% in 48 h. The evidence presented in this paper shows the potential of the agave leaves as a source of carbon in the production of enzymes by fermentation with the consequent production of reducing sugars. In addition, the enzymes produced by Penicillium sp. could be used in the production of bioethanol, since they work at high temperatures.

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“…The fiber diameters were approximately 18 ± 5 μm, which was consistent with the reported values of previous works for different agaves. Agave tequilana showed fiber diameters from 16 to 45 m, A. angustifolia from 9 to 110 m, and A. salmiana from 20 to 30 nm (Rosli et al 2013;Espino et al 2014;Chávez-Guerrero et al 2017). Figure 2c shows the micrograph of the bleached pulp.…”

Section: Sem Analysismentioning

confidence: 99%

Obtaining soluble-grade cellulose pulp from Agave tequilana Weber var. azul bagasse

Gallardo-Sánchez

Hernández

Casillas

et al. 2019

BioRes

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Natural lignocellulosic biomass is a valuable feedstock for soluble-grade cellulose (α-cellulose > 90%) with advantageous features such as abundance, high strength, rigid structure, low weight, and it is biodegradable. The bagasse from Agave tequilana Weber var. azul is the main agroindustrial waste from the tequila industry and poses an environmental threat. However, due to its high cellulose content, Agave tequilana bagasse is an excellent candidate for the extraction and utilization of its components. In this study, alkaline cooking, followed by five stages of bleaching, was employed to obtain soluble-grade cellulose pulp. The obtained soda pulp material had a Kappa number (KN) of 23 ± 3, viscosity (μ) of 11.53 to 10.18 cp, degree of polymerization (DP) of 830 to 750, brightness of 87.5%, and percentage of alpha-cellulose (α) of 81 ± 3 at 94 ± 3%. The obtained material was characterized using X-ray diffraction, Fourier-transform infrared spectroscopy, and scanning electron microscopy to compare its properties with published information. The waste of A. tequilana Weber var. azul produced pulp with a high percentage of alpha cellulose and a high crystallinity degree. This methodology is novel and simple for the production of soluble-grade cellulose pulp, a raw material for the production of cellulose nanocrystals.

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Isolation and characterization of cellulose nanoplatelets from the parenchyma cells of Agave salmiana

Cited by 14 publications

References 37 publications

Extraction and characterization of fiber from the flower stalk of Sansevieria cylindrica

Extraction and characterization of fiber from the flower stalk of Sansevieria cylindrica

Agave Leaves as a Substrate for the Production of Cellulases by Penicillium sp. and the Obtainment of Reducing Sugars

Obtaining soluble-grade cellulose pulp from Agave tequilana Weber var. azul bagasse

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