Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Allure of pineapple

04.10.2010
Alluring dresses from pineapple? Scientists in Malaysia are looking into the potential of another ‘cotton’ – the pineapple. Jamil Salleh of UiTM, Shah Alam, Malaysia is to asses techniques to extract the long fibres of the pineapple leaves.

Lanky models strutting in cotton, linen and silk, making statement for beautiful creations - why not make statement with a ‘pineapple’? Alluring dresses from pineapple? It could be. Often we heard mothers reminiscing their hard times during the Japanese occupation sewing with threads from pineapple leaves. If so, can we spin yarn from pineapple leaves threads then? After all, we have been relying on plants for clothings – the cotton. Now scientists in Malaysia are looking into the potential of another ‘cotton’ – the pineapple.

Jamil Salleh’s study is timely as we have scores of pineapple plantations with tonnes of leaves burnt away. There has been not much interest in pineapple fibres in our country. Hence, he is optimist that abundantly pineapple fibres in Malaysia, if extracted, can be marketed as ‘exotic’ textile. A good news for fashion designers Zang Toi or Bernard Chandran? For them it could be a work of mix and match for another charming creation. A good understanding of the extraction methods will be good for them. Thus Jamil will try to establish the best extraction to get the best of the fibres.

Jamil will experiment on the long fibres of the leaves by scrapping and retting. It is a preliminary study to assess the best technique to extract the fibres from the leaves. Scrapping is a traditional method where the epidermal tissue of the leaves is scrapped from the surface and back of the leaves using broken plate or coconut shell to expose the fibres. As much as 500 leaves can be scrapped in a day by an expert scrapper. It is tedious, time consuming and labor intensive. After scrapping, the fibres will be washed thoroughly with water and then air-dried.

Apart from scrapping, the fibre can also be extracted by retting. Retting is the use of micro organism and moisture to dissolve or rot away the epidermal tissue and pectine of the leaves, which will separate the fibre from the leaves. There are many types of water retting such as still water, running water and dew and rain retting. These methods are slow and consumes time, hence less popular. However, around 2.5 - 3.5% of fibre can be recovered from both methods.

Other than that, Jamil and collegues are looking into chemical retting under alkaline condition and microbes as they have been used to extract other fibres such as flax and kenaf. It was found that fibers produced from microbe retting are with higher residual gum content and lower elongation but better tenacity and softness. Other other hand, chemical retting produces lower tenacity and thicker fibre; and water retting produces weak and low quality fibre.

The fibres will be extracted from pineapple leaves by scrapping and retting method. To scrape, porcelain scrap will be used to remove the epidermal tissue of the leaves. For retting, four methods will be employed which are immersion in water for certain duration, use of NaOH/acetic acid and EDTA, use of enzyme (xylanase/pectinase/cellulase), and combination of chemical and enzyme retting. Other mechanical extraction methods using special fabricated equipment will also be experimented.

The strength of the extracted fibres will be evaluated using tests of linear density, tenacity, microscopic appearance, micronaire and fibre strength. Then, the fibres will be hand-spun into yarn or dref spinning. The spun yarn then will be tested for its physical properties such as linear density (count), single strength, yarn appearance and hairiness. A comparison fibre and yarn properties with regards to the extraction techniques employed will be evaluated to determine the best fibre extraction technique.

Contact:

Jamil Salleh
Wan Yunus Wan Ahmad
Mohd Rozi Ahmad
Mohd. Iqbal Misnon
Department of Textile Technology, Faculty of Applied Sciences
UniversityTeknologi MARA
Shah Alam
Email: jamilsal@salam.uitm.edu.my

Megawati Omar | Research asia research news
Further information:
http://inforec.uitm.edu.my
http://www.researchsea.com

More articles from Materials Sciences:

nachricht Switched-on DNA
20.02.2017 | Arizona State University

nachricht Using a simple, scalable method, a material that can be used as a sensor is developed
15.02.2017 | University of the Basque Country

All articles from Materials Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Breakthrough with a chain of gold atoms

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

Im Focus: DNA repair: a new letter in the cell alphabet

Results reveal how discoveries may be hidden in scientific “blind spots”

Cells need to repair damaged DNA in our genes to prevent the development of cancer and other diseases. Our cells therefore activate and send “repair-proteins”...

Im Focus: Dresdner scientists print tomorrow’s world

The Fraunhofer IWS Dresden and Technische Universität Dresden inaugurated their jointly operated Center for Additive Manufacturing Dresden (AMCD) with a festive ceremony on February 7, 2017. Scientists from various disciplines perform research on materials, additive manufacturing processes and innovative technologies, which build up components in a layer by layer process. This technology opens up new horizons for component design and combinations of functions. For example during fabrication, electrical conductors and sensors are already able to be additively manufactured into components. They provide information about stress conditions of a product during operation.

The 3D-printing technology, or additive manufacturing as it is often called, has long made the step out of scientific research laboratories into industrial...

Im Focus: Mimicking nature's cellular architectures via 3-D printing

Research offers new level of control over the structure of 3-D printed materials

Nature does amazing things with limited design materials. Grass, for example, can support its own weight, resist strong wind loads, and recover after being...

Im Focus: Three Magnetic States for Each Hole

Nanometer-scale magnetic perforated grids could create new possibilities for computing. Together with international colleagues, scientists from the Helmholtz Zentrum Dresden-Rossendorf (HZDR) have shown how a cobalt grid can be reliably programmed at room temperature. In addition they discovered that for every hole ("antidot") three magnetic states can be configured. The results have been published in the journal "Scientific Reports".

Physicist Dr. Rantej Bali from the HZDR, together with scientists from Singapore and Australia, designed a special grid structure in a thin layer of cobalt in...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Booth and panel discussion – The Lindau Nobel Laureate Meetings at the AAAS 2017 Annual Meeting

13.02.2017 | Event News

Complex Loading versus Hidden Reserves

10.02.2017 | Event News

International Conference on Crystal Growth in Freiburg

09.02.2017 | Event News

 
Latest News

Impacts of mass coral die-off on Indian Ocean reefs revealed

21.02.2017 | Earth Sciences

Novel breast tomosynthesis technique reduces screening recall rate

21.02.2017 | Medical Engineering

Use your Voice – and Smart Homes will “LISTEN”

21.02.2017 | Trade Fair News

VideoLinks
B2B-VideoLinks
More VideoLinks >>>