pandanus amaryllifolius

PANDAN LEAVES
(pandanus amaryllifolius)
AS A NATURAL RATS OR MICE REPELLENT
INTRODUCTION :
Mice or rat infestation is a problem prevalent in a large number
of Malaysia homes and restaurants. The two common types of
rodents found in Malaysia are the house mouse (Mus domesticus)
and the brown rat (Rattus norvegicus).
OBJECTIVE OF THE STUDY :
The objective of this research is to investigate whether
pandan extracts within the leaves of P. amaryllifolius are
effective repellent on rats or mice as cockroaches.
Using plant material to control pests may alleviate the burden of
heavy reliance on synthetic pesticides as both the public and
regulators recognize the environment and human health risks
associated with chemical pesticides.
RESULT :
METHOD OF RESEARCH :
•PART 1 :
•
Extracting essential oils and chemicals using acetone and
also by aqueous extraction.
•PART 2 :
•
Observing repellency response of domestic pet mice to the
aroma in pandan extracts.
REPELLENCY ASSAY
In the repellency test , the effectiveness of each candidate extract was expressed in terms of the excess
proportion of mouse that is attracted to the targeted area.
PC  (1 
NS
)  100%
NS  NC
PS  100%  PC
NC : Number of minutes the mouse are repelled in the chemically added test chamber
NS : Number of minutes the mouse are attracted to the control test chamber
PC : Percentage repellency (i.e. percentage of mouse repelled in the chemically added test chamber )
PS : Percentage attractancy (i.e. percentage of mouse are attracted to the control test chamber)
SECTION A
NC  253
PC  37.1 %
NS  155
PS  68.6 %
SECTION B
NC
 322
PC  67.5 %
NS  155
PS  32.5 %
The percentage attractancy for aqueous extract is 68.6 % whereas the percentage repellancy for acetone
extract is 67.5 %.
CONCLUSION :
Although both attractive and repellent compounds are
present in the plant, it is likely that the proportion of
attractive components in mature pandan leaves
outweighs that of its repellent counterparts. Hence,
bunches of pandan leaves might not repel bigger pests
such as mice or rats since the repellent volatile
compounds in the leaves might not be concentrated
enough to repel rats or mice.
TAN ZHI YOU
PROF. DR. SHUKOR MD. NOR
Pusat PERMATApintar™ Negara
Universiti Kebangsaan Malaysia
43600 UKM Bangi
Selangor
Tel: 03-8921 7512
Faks: 03-89217513
E-mel: www.permatapintar.edu.my
Laman Sesawang: permatapintar@ukm.my