Garlic (Allium Sativum) as a Major Component of Insect-Repellant Wood Varnish

Topics: Garlic, Allium, Varnish Pages: 23 (6471 words) Published: December 8, 2012

Chapter I

Background of the Study

Wood is one of the most common materials that we are currently using in large amount. With the rapid increasing of population, more and more wood is being demanded in the world market, but increase in population demands more space for residential purposes, seeing as residence is our more immediate need, changing of forests into subdivisions and residential areas are the usual actions which can only be done through deforestation which leads to the huge deficiency of wood throughout the world.

Termites are the usual and maybe the foremost pests that ravage our wood may they be raw lumber or furniture, thus destroying our lumber industry. The fact that they use wood as breeding area means that even their larvae feed on wooden products.

Wooden furniture is one of the many products of wood. Wooden furniture is being applied by protective layers made of chemical. These chemicals may be harmful to the respiratory health of people because some contain allergens. These varnishes do not protect wood from fungal activities.

Garlic is a common plant coming from the family Allium. Garlic has been used for years as a seasoning and food flavoring in many parts of the world. One of more known things about garlic is how it smells, which is caused by the sulfur content in it. The sulfur in the garlic is also the reason why the plant itself is a natural pesticide. Seeing as it is being harvested in many countries worldwide it is very common and cheap.

This research study is to find out the potential of garlic oil extract as a major component of an insect-repellant wood varnish so it will not be required to apply chemical layering on the wood to protect it from insects such as termites that is easy to make, economical and has easy to find materials.  

The objective of this research project is to be able to produce a varnish, with garlic as the major component, that will protect it from pest especially termites. An additional feature, because of the anti-fungal properties of garlic, is that unlike commercial varnishes it will prevent fungi from breeding and thus need less maintenance.

Significance of the Study
Even when wood varnish has been introduced, termites still tend to penetrate the protective layers of the wood provide by the varnish. In this connection, we would like to make an alternative wood varnish .This product also limits the use of chemically made products which can be considered as eco-friendly.

Scopes and Limitations
Wood varnish will be used and only used on wood products (e.g. wooden tables, chairs, posts, etc).
The experiment was conducted on the researcher’s residence at Tugbungan, Zamboanga City and will be repeated at one of the researcher’s residence in Guiwan, Zamboanga City.

Termite-Resistant Varnish
Conceptual Framework

Garlic Oil Extract

Sulfur compound allicin (from Garlic)
Theoretical Framework

Termite-Resistant Varnish


There are two hypotheses formulated.
H_o:There is no significant difference between Commercialized Wood Varnish and Garlic Wood Varnish in terms of repelling termites.
H_a:There is a significant difference between Commercialiized Wood Varnish and Garlic Wood Varnish in terms of repelling termites.
Definition of Terms
An organic compound, diallyl thiosulfinate, obtained from garlic, with a variety of medicinal and antibacterial properties.

Allistatin (or Allistatine) is an antibiotic found naturally in plants of the Allium group, which includes garlic and onions. It is recognized as being a strong broad-spectrum fungicide and antibiotic against numerous serious microorganisms (bacteria, etc.).

Drying Oil
Drying oil is an oil that hardens to a tough, solid film after a period of exposure to air. The oil hardens through a...
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