Effect of alkali treatment on processing of pineapple leaf fibers

Triastuti, Warlinda Eka

doi:10.1063/5.0045348

Cited by 4 publications

(3 citation statements)

References 4 publications

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“…The lowest yield was from 3% alkali pre-treated leaves. Alkali is used to remove sap such as lignin from leaves, also known as the degumming process [17] could have removed lignin from the pineapple leaf fibres, resulting in this lower yield compared to the pre-treatment method without alkali. 1 showed that the untreated biosorbent had the highest moisture loss.…”

Section: Resultsmentioning

confidence: 99%

Preliminary Study of Glucose Removal Using Biosorbents from <i>Ananas comosus </i>Leaves

Jimali

Chan

Siner

2022

KEM

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The usefulness of Ananas comosus (pineapple) is not limited its fruits. This study aims to explore the removal of glucose, which are present in clinical waste by pineapple leaf biosorbents derived through three pre-treatment methods. Particle size analysis showed the smallest particle were from the steam pre-treated biosorbents and largest particles were from the 5% alkali pre-treated biosorbents. Fourier Transform Infrared Spectroscopy showed that lignin, hemicellulose, and cellulose remained unchanged in both the used and unused biosorbents. Despite the large particle size of the alkali pre-treated biosorbents, up to 70% of glucose was removed which might be due the improvement of the interfacial adhesion during the alkali treatment process.

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Section: Resultsmentioning

confidence: 99%

Preliminary Study of Glucose Removal Using Biosorbents from <i>Ananas comosus </i>Leaves

Jimali

Chan

Siner

2022

KEM

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“…This research is a development of previous research conducted by Triastuti, W.E (2021) where pineapple leaf fiber was delignified using NaOH with a concentration of 2-7% for 2 hours at 80oC by soaking. The results showed that the fibers that produced the best tensile strength were those that were delignified at a NaOH concentration of 6% [9].…”

Section: Table 1 Comparison Of Lignin Content In Naturalmentioning

confidence: 99%

Effect of Steam Delignification and Bleaching Process on Pineapple Leaf Fiber as Textile Raw Material

Triastuti,

Suprapto,

Surono

et al. 2023

IJOE

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Pineapple is a local commodity in Indonesia that is widely cultivated. The part of the pineapple plant that is mostly used is only the fruit part, while the other plant parts are discarded and become waste. Pineapple leaves contain high fiber content of cellulose, lignin, and hemicellulose, so it has very potential if used as an alternative textile raw material. The quality of pineapple leaf fiber can be improved by going through a delignification process using an alkaline solvent with the appropriate concentration and time. This research determine the effect of delignification of pineapple leaf fiber with a solution of Sodium Hydroxide (NaOH), Hydrogen Peroxide (H2O2) and water (H2O) on tensile strength, lignin content and SEM Analysis. This research consists of six stages including delignification using NaOH and H2O2, washing, neutralization, and analysis of pineapple leaf fiber products. The results obtained are pineapple leaf fiber lignin test after delignification and bleaching, the best lignin results are steam delignification at 80°C with 3% NaOH solution and bleaching solution using NaOCl solution obtained 21% lignin content with a tensile strength test of 0,263 kgf/mm 2 . SEM analysis also showed that there was a loss of material from the fiber surface indicated there was degradation.

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“…Nevertheless, natural fibres do have some drawbacks. One drawback is the presence of wax/cellulose, which can reduce the adherability to the matrix [7,9] . Another property is that natural fibres are hydrophilic, quickly absorbing water and reducing the interfacial bond between the fibre and the matrix.…”

Section: Introductionmentioning

confidence: 99%

Physical-Mechanical Properties of Pineapple Leaf Fibre Reinforced in Unsaturated Polyester Resin Filled With Calcium Carbonate

Rachman,

Kasda,

Komara

et al. 2023

JRM

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Using natural fibres is often recommended as polymer composite materials owing to their potential to reduce the pollution of synthetic material waste. This study aimed to obtain the physical properties of unsaturated polyester resin matrix composite containing calcium carbonate fillers of 15 and 30 parts per hundred weights of the resin and natural pineapple leaf fibre of the amount 20% and 30% of the composite weight. The composite samples were three millimetres thick, with the pineapple leaf fibres arranged in one longitudinal direction. Some parameters observed included density, water absorption, response to fire, hardness, tensile strength, modulus of elasticity, and impact strength. The results showed that adding calcium carbonate filler into the matrix increased the density, water absorption, hardness, and modulus of elasticity of the composite. However, it reduced the flame propagation rate, tensile strength, and impact strength. Also, the use of pineapple leaf fibre contributed to increased water absorption, rate of flame propagation, tensile strength, modulus of elasticity, and impact strength of the composite, but it reduced the density and hardness. As these samples use economical materials, they are likely valuable for building materials that do not require high mechanical properties, especially guttering materials.

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Effect of alkali treatment on processing of pineapple leaf fibers

Cited by 4 publications

References 4 publications

Preliminary Study of Glucose Removal Using Biosorbents from <i>Ananas comosus </i>Leaves

Preliminary Study of Glucose Removal Using Biosorbents from <i>Ananas comosus </i>Leaves

Effect of Steam Delignification and Bleaching Process on Pineapple Leaf Fiber as Textile Raw Material

Physical-Mechanical Properties of Pineapple Leaf Fibre Reinforced in Unsaturated Polyester Resin Filled With Calcium Carbonate

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