Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

A Computerized Digital Imaging Technique to Estimate Palm Oil Quality Based on Fruit Colour

16.06.2008
Typically, palm oil quality is determined in a destructive manner using wet chemical analysis, which can be costly, time consuming and error prone.

Here, researchers developed an automated technique of estimating quality based on fruit colour captured in JPEG format.

This research has won the following awards:
GOLD— British Invention Show (BIS 2007).
GOLD— International Invention Innovation Industrial Design & Technology Exhibition (I-TEX 2007).

SILVER— UPM Invention, Research & Innovation Exhibition (PRPI 2006).

... more about:
»Color »DOBI »Digital

To see the Figures described in this write-up, please download the attached document.

TITLE: A Computerized Digital Imaging Technique to Estimate Palm Oil Quality Based on Fruit Colour

RESEARCHERS: Siva K Balasundram, Ahmad Husni Mohd Hanif* and Anuar Abdul Rahim

Typically, palm oil quality is determined in a destructive manner using wet chemical analysis. Such an analysis can be costly, time consuming and error prone. Deterioration of Bleachability Index (DOBI) is a key indicator of palm oil quality. An alternative evaluation procedure that combines consistency and reporting accuracy is desirable. One such method is the use of fruit color as an indicator of palm oil quality.

A recent study showed that fruit color was significantly correlated with palm oil content (Balasundram et al., 2006a). An extension of that work further showed that fruit color was also significantly correlated with DOBI (Balasundram et al., 2006b). Both these studies employed a digital imaging approach to quantify fruit color. Oil palm fruit images were captured using a high resolution digital camera. After imaging, the fruits were manually squeezed for oil and analyzed for total oil content and DOBI using standard laboratory procedures. The images were processed using ILWIS 3.2, an image analysis program, to generate percentage of color based on clustering and unsupervised classification. Each classified image was re-colored to its original color separation, which comprised black, red, orange and yellow components (Figure1). Correlation and stepwise regression techniques were used to determine the relationship between oil content/DOBI and fruit color components.

In this research, we developed an automated technique of quantifying fruit color components based on digital images captured in Joint Photographic Experts Group (JPEG) format. This technique is based on a simple computer program written in Visual Basics and interfaced with ILWIS 3.2 (Figure 2). Using the empirical relationship between oil content/DOBI and fruit color, an additional step of estimating % total oil content and/or DOBI values is also made possible. Essentially, the digital fruit image (in JPEG format) serves as the input data to churn out two levels of output sets, i.e., the percentage of color components (black, red, orange and yellow) and the predicted oil content and/or DOBI value.

This technique offers a non-destructive means of assessing palm oil quality and can enable oil yield and/or oil quality mapping to facilitate precision oil palm management. Currently, there is no practical method of mapping oil palm yields/quality due to logistical and instrumentation limitations.

For inquiries, please contact:

Siva K Balasundram
Department of Agriculture Technology
Faculty of Agriculture
Universiti Putra Malaysia
43400 UPM Serdang
Selangor, Malaysia
Tel: +603-8946 4186
Email: siva@agri.upm.edu.my

Dr Nayan Kanwal | ResearchSEA
Further information:
http://www.upm.edu.my
http://www.researchsea.com/html/download.php/id/93/research/UPM-Palm-oil-quality.doc

Further reports about: Color DOBI Digital

More articles from Life Sciences:

nachricht Toward a 'smart' patch that automatically delivers insulin when needed
18.01.2017 | American Chemical Society

nachricht 127 at one blow...
18.01.2017 | Stiftung Zoologisches Forschungsmuseum Alexander Koenig, Leibniz-Institut für Biodiversität der Tiere

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: How gut bacteria can make us ill

HZI researchers decipher infection mechanisms of Yersinia and immune responses of the host

Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...

Im Focus: Interfacial Superconductivity: Magnetic and superconducting order revealed simultaneously

Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.

While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...

Im Focus: Studying fundamental particles in materials

Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales

Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...

Im Focus: Designing Architecture with Solar Building Envelopes

Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.

As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...

Im Focus: How to inflate a hardened concrete shell with a weight of 80 t

At TU Wien, an alternative for resource intensive formwork for the construction of concrete domes was developed. It is now used in a test dome for the Austrian Federal Railways Infrastructure (ÖBB Infrastruktur).

Concrete shells are efficient structures, but not very resource efficient. The formwork for the construction of concrete domes alone requires a high amount of...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

12V, 48V, high-voltage – trends in E/E automotive architecture

10.01.2017 | Event News

2nd Conference on Non-Textual Information on 10 and 11 May 2017 in Hannover

09.01.2017 | Event News

Nothing will happen without batteries making it happen!

05.01.2017 | Event News

 
Latest News

A big nano boost for solar cells

18.01.2017 | Power and Electrical Engineering

Glass's off-kilter harmonies

18.01.2017 | Materials Sciences

Toward a 'smart' patch that automatically delivers insulin when needed

18.01.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>