Biopolymeric films obtained from the parenchyma cells of Agave salmiana leaves

Silva-Mendoza, Julio; Cantú-Cárdenas, María Elena; Vázquez‐Rodríguez, Sofia; Toxqui-Terán, Alberto; Chávez-Guerrero, L.

doi:10.1007/s10570-018-2173-9

Cited by 2 publications

(5 citation statements)

References 37 publications

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“…Despite using a high concentration of chemicals, the amount of nanocellulose is still lower than those of recently reported works in the extraction of CNF [11,23,30,31]. However, it is necessary to increase the efficiency of the process due to the presence of microfibers, which are difficult to separate into nanofibers due to the lignin that keeps them together.…”

Section: Morphological Characterizationmentioning

confidence: 91%

“…Some studies have obtained a significant reduction in weight, such as the case of Raza et al [32], who reported a 60% reduction in weight at the end of 12 weeks in C57bl6 mice, where they administered a combination of cellulose and a fraction rich in lignin from BSG; they show a pattern of weight reduction in mice similar to our results. Despite using a high concentration of chemicals, the amount of nanocellulose is still lower than those of recently reported works in the extraction of CNF [11,23,30,31]. However, it is necessary to increase the efficiency of the process due to the presence of microfibers, which are difficult to separate into nanofibers due to the lignin that keeps them together.…”

Section: Mouse Dietary Nanocellulosementioning

confidence: 91%

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Potential of Nanocellulose as a Dietary Fiber Isolated from Brewer’s Spent Grain

Morales-Juárez,

Terrazas Armendáriz,

Alcocer-González

et al. 2023

Polymers

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Steady growth in beer production is increasing the number of by-products named brewers’ spent grain. Such by-products are a source of several components, where cellulose is usually present in high amounts. The aim of this study was to develop a protocol to obtain a mix of cellulose microfibers with an average diameter of 8–12 µm and cellulose nanoplatelets with an average thickness of 100 nm, which has several applications in the food industry. The process comprised one alkaline treatment followed by acid hydrolysis, giving a new mix of micro and nanocellulose. This mix was characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, and laser scanning microscopy corroborating the presence and measurements of the cellulose nanostructure, showing an aspect ratio of up to 500. Finally, we demonstrated that the administration of this new type of nanocellulose allowed us to control the weight of mice (feed intake), showing a significant percentage of weight reduction (4.96%) after 15 days compared with their initial weight, indicating the possibility of using this material as a dietary fiber.

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Section: Morphological Characterizationmentioning

confidence: 91%

Section: Mouse Dietary Nanocellulosementioning

confidence: 91%

Potential of Nanocellulose as a Dietary Fiber Isolated from Brewer’s Spent Grain

Morales-Juárez,

Terrazas Armendáriz,

Alcocer-González

et al. 2023

Polymers

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“…Inside, the cellulose fibers serve as support for the leaves, while the parenchyma cells are actively involved in photosynthesis, secretion, and food storage (Figure 1(b)). e cell wall in the parenchyma of the Agave leaves is thinner as compared with other plants [12,15].…”

Section: Introductionmentioning

confidence: 86%

“…Fibers were washed with hot water to remove residual sugars, and the parenchyma was used unmodified. A subsample of the parenchyma was used to obtain nanocellulose by a method previously described [12]. e isolated Penicillium sp.…”

Section: Agave Salmiana Leaves As a Carbonmentioning

confidence: 99%

“…Recently, Agave species have been found to be a good source of polysaccharides (i.e. cellulose and fructans), used to obtain different products such as nanocellulose and fermentable sugars and as a substrate for enzymes production [9][10][11][12][13]. During the industrial production of fermented beverages from A. salmiana, leaves are discarded.…”

Section: Introductionmentioning

confidence: 99%

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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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Biopolymeric films obtained from the parenchyma cells of Agave salmiana leaves

Cited by 2 publications

References 37 publications

Potential of Nanocellulose as a Dietary Fiber Isolated from Brewer’s Spent Grain

Potential of Nanocellulose as a Dietary Fiber Isolated from Brewer’s Spent Grain

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

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