Analysis of the Chemical Compositions and Fiber Morphology of Pineapple (Ananas comosus) Leaves in Malaysia

Daud, Zawawi; Zainuri, Mohd; Sari, Mustika; Aripin, Ashuvila Mohd

doi:10.3923/jas.2014.1355.1358

Cited by 45 publications

(10 citation statements)

References 3 publications

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“…The chemical composition of pineapple leaves was close to that found by Treesuwan [11]: holocellulose (46.9 wt%), pentosan (22.3 wt%), lignin (12.9 wt%), and ash (8.6 wt%). However, the chemical composition of pineapple leaves in this study was different from that indicated by Daud et al [8]: holocellulose (85.7 wt%), lignin (4.2 wt%), and ash (4.5 wt%). It should be noted that pineapple leaves used in this study and those of Treesuwan [11] came from the same location, Prachuap Khiri Khan Province, Thailand, whereas those of Daud et al [8] were grown in Malaysia.…”

Section: Chemical Composition Of Pineapple Leavescontrasting

confidence: 97%

“…Usually, only pineapple fruit is consumed and the rest are used as household animal feed or left as pineapple plantation compost. The research by Daud et al [8] indicated that pineapple leaves have chemical composition suitable for paper production. Large amount of pineapple leaves left from harvesting times throughout the year are then a promising alternative source for paper production.…”

Section: Introductionmentioning

confidence: 99%

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Influence of Soda Pulping Variables on Properties of Pineapple (Ananas comosusMerr.) Leaf Pulp and Paper Studied by Face-Centered Composite Experimental Design

Wutisatwongkul

Thavarungkul

Tiansuwan

et al. 2016

Advances in Materials Science and Engineering

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Face-centered composite design (FCC) was used to study the effect of pulping variables: soda concentration (4-5 wt%), temperature (90–130°C), and pulping time (20–60 min) on the properties of pineapple leaf pulp and paper employing soda pulping. Studied pulp responses were screened yield and lignin content (kappa number). Paper properties, which include tensile index, burst index, and tear index, were also investigated. Effects of the pulping variables on the properties were statistically analyzed using Minitab 16. The optimum conditions to obtain the maximum tensile index were soda concentration of 4 wt%, pulping temperature of 105°C, and pulping time of 20 min. The predicted optimum conditions provided tensile index, burst index, tear index, screened yield, and kappa number of 44.13 kN·m/kg, 1.76 kPa·m2, 1.68 N·m2/kg, 21.29 wt%, and 28.12, respectively, and were experimentally confirmed.

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Section: Chemical Composition Of Pineapple Leavescontrasting

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Influence of Soda Pulping Variables on Properties of Pineapple (Ananas comosusMerr.) Leaf Pulp and Paper Studied by Face-Centered Composite Experimental Design

Wutisatwongkul

Thavarungkul

Tiansuwan

et al. 2016

Advances in Materials Science and Engineering

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“…In this study, the holocellulose was similar, but the lignin content was higher (15.45%). Finally, regarding the content of extractives in ethanoltoluene and NaOH solution, these were similar to those reported by Khalil et al (2006), Nadirah et al (2012), and Daud et al (2014) in Malaysia and Neto et al (2015) from the 12 Brazilian varieties. As shown in this study, the white-rot fungi degraded lignin in PALF (Isroi et al 2011).…”

Section: Evaluation Of Holocellulose Lignin and Extractives Contentsupporting

confidence: 71%

“…Furthermore, in a study of 12 pineapple leaf fiber varieties from Brazil, slightly inferior values to those found in the present work were also reported (Neto et al 2015). Meanwhile, Daud et al (2014) reported holocellulose and lignin contents of 85.7% and 4.7%, respectively. In this study, the holocellulose was similar, but the lignin content was higher (15.45%).…”

Section: Evaluation Of Holocellulose Lignin and Extractives Contentmentioning

confidence: 62%

Biopulp from Pineapple Leaf Fiber Produced by Colonization with Two White-Rot Fungi: Trametes versicolor and Pleurotus ostreatus

et al. 2016

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Trametes versicolor and Pleurotus ostreatus were used for the biopulping from pineapple leaf fiber (PALF). PALF substrate was subjected to T. versicolor for 2 to 6 weeks and to P. ostreatus for 4 to 8 weeks. The yields, holocellulose and lignin contents, and extractives in ethanol-toluene mixture and in sodium hydroxide (NaOH) solution were evaluated. Fourier transform infrared spectroscopy (FTIR) spectra, thermogravimetric analysis (TGA), and color studies by L*a*b* systems were used for sample analysis. The results showed that the pulp yield was 55% to 70% with P. ostreatus and 35% to 50% with T. versicolor. Longer colonization periods increased the amount of holocellulose and decreased the amount of lignin and extractives in ethanol-toluene and NaOH solution. TGA showed an increase in intensity associated with cellulose, and the observed inflexion was attributed to lignin, which showed a tendency to fade. The FTIR spectrum showed high intensity between 3100 cm -1 and 3600 cm -1(cellulose) and decreased intensity at 1730 cm -1 (lignin). For both fungi, the pulp color produced an increase in L* color parameter and decreased in yellowness, while little variation was observed in redness. The most appropriate colonization period was 5 weeks for P. ostreatus and 4 weeks for T. versicolor.

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“…However, NSC has some undesirable properties like being weak in tension, brittleness, less resistance to cracking, low impact resistance and heavy weight, hence there is a need to improve the concrete properties [3] [4]. Pineapple Leaf Fibers (PALF) are more compatible natural fiber resource and constitutes a good chemical composition [5]. PALF are a vital natural fiber, which have a high specific strength, rigidity, flexural and torsional rigidity than other fibers; seen all these advantages of PALF and since no one has developed suitable proportion of production of PALF reinforced on NSC it is time to try such fiber.…”

Section: Introductionmentioning

confidence: 99%

Developing Suitable Proportions for the Production of Pineapple Leaf Fibers Reinforced Normal Strength Concrete

Patrick¹,

Onchiri²,

Mang’uriu³

2019

OJCE

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The present work tried to develop suitable proportions for the production of Pineapple Leaf Fibers (PALF) reinforced Normal Strength Concrete (NSC), an experimental analysis with a mix ratio of 1:1.84:3.27 for cement: fine aggregates: coarse aggregates with constant water to cement ratio of 0.54. The total volume per mixing batch was calculated of 9 cubes + 9 cylinders + 3 beams in order to know the number of materials to be used in casting per batch, and the PALF percentage was taken based on cement weight whereby it starts from the lowest to the maximum as follow 0%, 0.2%, 0.4%, 0.6%, 0.8%, and 1%. The tests that were done on fresh concrete were compacting factors and workability using the slump test which was carried out on each fresh mix of concrete. The results showed that PALF can be used to improve the Tensile and Flexural properties of Normal Strength Concrete.

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Analysis of the Chemical Compositions and Fiber Morphology of Pineapple (Ananas comosus) Leaves in Malaysia

Cited by 45 publications

References 3 publications

Influence of Soda Pulping Variables on Properties of Pineapple (Ananas comosusMerr.) Leaf Pulp and Paper Studied by Face-Centered Composite Experimental Design

Influence of Soda Pulping Variables on Properties of Pineapple (Ananas comosusMerr.) Leaf Pulp and Paper Studied by Face-Centered Composite Experimental Design

Biopulp from Pineapple Leaf Fiber Produced by Colonization with Two White-Rot Fungi: Trametes versicolor and Pleurotus ostreatus

Developing Suitable Proportions for the Production of Pineapple Leaf Fibers Reinforced Normal Strength Concrete

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