ORIGINAL ARTICLE
The effect of plant oils for reducing contamination of stored packaged-foodstuffs
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1
Young Researchers Club, Islamic Azad University, Sanandaj Branch, Sanandaj, Iran
2
Department of Plant Protection, Faculty of Agricultural, Urmia University, Iran
Corresponding author
Somaye Allahvaisi
Young Researchers Club, Islamic Azad University, Sanandaj Branch, Sanandaj, Iran
Journal of Plant Protection Research 2011;51(1):82-86
KEYWORDS
TOPICS
ABSTRACT
A study to determine the effect of essential oils, used together with mixed packaging, on controlling stored-grain insects,
was conducted in the laboratory. Plant essential oils are one of the materials that act like a contact-fumigant, offering the prospect for
use in stored product protection. Plant essential oils must have the ability to repel the insects in order to prevent penetration to foodstuffs. The objective of the present study was to test the properties of
Cinnamomum camphora
and
Syzygium aromaticum
for preventing
the penetration of pest insects, including:
Sitotroga cerealella
and
Ephestia kuehniella
5th instar
larvae to packaged cereals. Ten grams
of wheat and flour as foodstuffs were placed inside Cellophane packages and hung vertically in the top of a container. The repellent
essential oils were used in the interior surface of containers. Each container had punctures at different parts and the insects were
released around the container to determine insect penetration and the effect of the repellents. The experiments were conducted at
26±1°C, 60±5% RH in dark conditions. The highest concentration was 1.5 μl of essential oil per 0.5 ml acetone. Four days after the initiation of the experiment the results showed
S. aromaticum
had more of a repellency effect than
C. camphora
on both pests that caused
contamination deduction inside the packaged foodstuffs compared with the control. However, both the essential oils were effective
as protectants of cereals but
S. aromaticum
was more effective.
S. aromaticum
caused the most repellency on
E. kuehniella
. The mean
of repellency of all the concentrations was 81.4%. The results demonstrated the efficacy of these essential oils for use in organic food
protection.
C. camphora
and
S. aromaticum
can prevent warehouse infestation of stored-product pests
CONFLICT OF INTEREST
The authors have declared that no conflict of interests exist.
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