Pediculicidal activity of tan-ag (kleinhovia hospita linn.) leaves

Thesis (Bachelor of Science in Biology) -- University of Rizal System-Morong.

EXECUTIVE SUMMARY: The study aimed to determine the pediculicidal activity of tan-ag (kleinhovia hospita linn.) leaves extract against human lice (pediculus humanus linn. var. capitis de geer). The study was conducted at University of Rizal System Morong Campus, Morong, Rizal during the School Year 2016-2017. Further, this was conducted to focus on the utilization of unexplored plant such as Tan-ag. Tan-ag is a tree growing 8 to 15 meters high. Leaves are alternate, broadly ovate, 10 to 20 centimeter long, with pointed tip and heart-shaped base, with petioles 5 to 20 centimeters long. Tan-ag belongs to the family Sterculiaceae, it is common in thickets, secondary forest, and deserted clearings at low and medium altitudes throughout the Philippines. The study utilized experimental research design to determine the effect of Tan-ag leaves extract on the mortality rate of human lice. The experiment involved the preparation of laboratory materials that was needed in the experimentation. Tan-ag leaves were collected at Cardona, Rizal since there is abundance of such in the area. The study also involved the collection of human lice which is the primary subject of the study which was collected in poor communities in a selected town in Western Rizal. The study use nine (9) petri dishes, each has a folded tissue inside to absorb excess solutions were ten human lice are placed. The test organisms were acclimatized for 10 minutes prior to experimentation inside the petri dishes and were treated with distilled water, Tan-ag leaves extract and commercial pediculicidde after 5 hours and lastly, recording the effect in human lice from distilled water, tan-ag crude extract and commercial pediculicide within five hours after treating the test organism. Mean and Standard deviation were used to determining the pediculicidal activity of Tan-ag leaves extract on the mortality rate of human lice. In, addition, one way anova analysis was to determine the significant difference of distilled water, Tan-ag crude extract and commercial pediculicide. The data gathered form the obtained results shows that Tan-ag leaves extract has no significant difference effect with respect to the mortality rate of human lice against commercial pediculicide. It is hereby recommended that Tan-ag leaves extract is effective on the mortality rate of human lice and exhibit pediculicidal activity.