Alkaline Delignification of Cactus Fibres for Pulp and Papermaking Applications

Mannai, Faten; Ammar, Mohamed; Yanez, José Garrido; Elaloui, Elimame; Moussaoui, Younes

doi:10.1007/s10924-017-0968-7

Cited by 31 publications

(30 citation statements)

References 31 publications

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“…REZULTATI I RASPRAVA Chemical composition and extractives of castor bean and L. pyrotechnica in comparison with some common representatives of lignocellulosic annual plants are shown in Table 1. Castor bean and L. pyrotechnica show a relatively high cellulose content of 46.20 % and 44.30 %, respectively, compared to prunus amygdalus (Mechi et al, 2017), A. armatus(Ferhi et al, 2014a) vine stems(Mansouri et al, 2012) and bagasse(Saeed et al, 2017a), but lower than that of I. tinctoria(Comlekcioglu et al, 2016), cactus(Mannai et al, 2017) and similar to that of palm leaves(Saeed et al, 2017b). On the other hand, L. pyrotechnica show a higher amount of hemicellulose (22.15 %) compared to castor bean value of 20.50…”

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Sudanese Dicots as Alternative Fiber Sources for Pulp and Papermaking

et al. 2018

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The suitability of the stems from two Sudanese dicotyledonous annual plants, namely castor bean (Ricinus communis) and Leptadenia pyrotechnica (L. pyrotechnica) were investigated for pulp and papermaking. Chemical compositions, elemental analysis, fi ber dimensions, paper physical properties and morphology revealed a relatively high α-cellulose content (46.2 and 44.3 %) and low lignin (19.7 and 21.7 %) in the stems of castor bean and L. pyrotechnica, respectively. The average fi ber length of castor bean and L. pyrotechnica is 0.80 and 0.70 mm with fi ber width of 16.30 μm and 18.20 μm, respectively, which makes them acceptable candidates. Soda-AQ pulping of castor bean stem led to a higher pulp yield of 43.2 % at kappa number 18.2 compared to 40.3 % at kappa 20.3 for L. pyrotechnica. This yield is less than that obtained for wood plants and similar to that observed for annual plants. Paper handsheets produced from castor bean showed better mechanical properties than L. pyrotechnica. SEM images indicated that the produced papers were quite homogeneous, compact, closely packed, and well assembled.

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Sudanese Dicots as Alternative Fiber Sources for Pulp and Papermaking

et al. 2018

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“…The cleaned OFI was cut into chips (1×1×1 cm 3 ). 24 Sunflower oil (palmitic acid: 5-7.6 %; stearic acid: 2.7-6.5 %; oleic acid:14-39.4 %; linoleic acid 48.3-74 %) was kindly donated by the SAS PIVERT (Compiègne, France). All other chemicals used (sodium hydroxide (NaOH, 98 %), hydrochloric acid (HCl, 37 %), carboxymethyl cellulose sodium salt (CMCNa), chitosan (degree of deacetylation: 75 %) and a cationic surfactant (tetradecyltrimethylammonium bromide, TTAB, 99 %, CMC = 4-5 mmol L -1 )) were obtained from Sigma-Aldrich and used without further purification.…”

Section: Methodsmentioning

confidence: 99%

The use of mucilage extracted from Opuntia ficus indica as a microencapsulating shell

et al. 2021

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This study aimed to investigate the micro-formulation of capsules, using natural biopolymers such as cactus mucilage (CM), carboxymethyl cellulose sodium salt (CMCNa) and chitosan (Chi) as a wall material, for the transport and supply of sunflower oil. CM samples were extracted from Opuntia ficus indica (OFI) by precipitation at different supernatant pH values (2, 4, and 12). The extracted natural polysaccharide and the resulting microcapsules were characterized by different experimental techniques. Fourier transform infrared spectroscopy (FTIR) analysis of the CM showed the presence of uronic acid units and sugars. Scanning electron microscopy (SEM) revealed that most particles were adhered together, causing the formation of compact, linked agglomerates, which resulted in different microstructures with irregular shapes. All oil-core microcapsules were characterised, and the results showed that the different shell materials could be used to microencapsulate sunflower oil. Among them, the microcapsule crosslinked with the CM and Chi was the most suitable, with the highest encapsulation efficiency (95 %). This coacervation led to the narrowest size distribution of capsules, with diameters ranging from 1 to 5 ?m. Optical microscopy confirmed the deposition of coacervate droplets around oil drops and clearly showed that the formation of coacervated particles and their deposition onto oil droplets were successive events.

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“…Manufacturing of pulp starts with raw material preparation [27]. The Opuntia ficus-indica stems (trunk) was harvested from southwest of Tunisia, debarked, cleaned, cut into chips (2-3 × 1-2 × 1.5-2 cm 3 ), dried at room temperature, and temporarily stored for further processing [28,29]. The dried raw material was ground in accordance with the T 264 cm-07 standards, and its 40-mesh fractions were selected for chemical composition analyses.…”

Section: Experimental 21 Raw Materials Preparation and Chemical Analysesmentioning

confidence: 99%

“…Conventional soda-AQ pulping process was carried out in a rotating batch digesters with electrical heating equipped with thermocouples to monitor possible changes in temperature, and the processing time was automatically selected by the system [28,29,31,32]. The soda-AQ pulping was performed by exploring different reaction conditions and parameters described in detail in Table 1.…”

Section: Pulping Processing and Testingmentioning

confidence: 99%

“…A very small fraction of minerals (5.5 wt%) was observed in the trunk [28] compared to the total minerals amount in the cladode (19.6 wt%). The lower fraction of minerals presents a major advantage, and the utilized raw material was silica free, which was extremely important for papermaking [29]. The total holocellulose contents (64 wt%) were higher than those of wood [20] and some annual plants [32,37].…”

Section: Papermaking and Testingmentioning

confidence: 99%

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Cellulosic Fibers from Lignocellulosic Biomass for Papermaking Applications

Mannai¹,

Elhleli²,

Khiari³

et al. 2020

Food Preservation and Waste Exploitation

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This chapter gives a brief overview of the cellulose extraction from Opuntia (Cactaceae) fibers. The suitability of this food waste for pulp and paper production was investigated by the determination of the chemical composition and testing two procedures of delignification: chemical and semichemical pulping processes. Chemical pulping procedure was carried out by using soda-anthraquinone (soda-AQ) mixture, and semichemical pulping process was performed by softening the raw material using soda-hydrogen peroxide (soda-HP) mixture; this operation was followed by mechanical grinding. The obtained fibrous suspensions were characterized by measuring their dimension parameters (fiber length, fiber width, and fine elements), polymerization degree, and their retention water capacity. The effect of pulping process on yield and fiber characteristics in each pulp was studied. The surface morphologies of the produced papers were studied using scanning electron microscope (SEM), and results show the good distribution and individuality of fibers. The structural and mechanical properties of the prepared paper were presented and discussed. Mechanical strength results show the good tenacity of papers made from soda-HP pulping process.

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Alkaline Delignification of Cactus Fibres for Pulp and Papermaking Applications

Cited by 31 publications

References 31 publications

Sudanese Dicots as Alternative Fiber Sources for Pulp and Papermaking

Sudanese Dicots as Alternative Fiber Sources for Pulp and Papermaking

The use of mucilage extracted from Opuntia ficus indica as a microencapsulating shell

Cellulosic Fibers from Lignocellulosic Biomass for Papermaking Applications

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