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Investigatory Projects in Biochemistry

Insecticidal Property of Acacia Seeds and Bark Against Termites

Insecticidal Property of Acacia (Samanea saman) Seeds and Bark Against Termites (Coptotermes vastator). A study on the insecticidal property of Acacia seeds and bark against termites was conducted to find out if these could be used against termites. The experiment was conducted at the laboratory of the Bureau of Soils in Lipa City and in Lumbang National High School from September to October 2005. The effort was initiated to enrich the laboratory activities in Chemistry and Biology for high school students.

 
Insecticidal Effect of Yellow Oleander Fruit Extract on Rice Bugs

Insecticidal Effect of Yellow Oleander (Thevetia peruviana) Fruit Extract on Rice Bugs (Leptocorisa oratorius). According to the Department of Agriculture Reference Manual (1998), 14% loss of rice is due to rice bugs infestation. A survey conducted in Cuartero, an agricultural town in Capiz revealed that rice bugs rank third among the pests infesting rice. Generally, the study aims to find out if Yellow Oleander fruit extract can be used as insecticide against rice bugs. Specifically, it aims to determine if there is significant difference in the effect of different concentrations of Yellow Oleander fruit extract, and varying the mortality rate (in minutes) on the percent mortality mean of rice bugs.

 
Cassava starch as an effective component for Ideal Biodegradable Plastic

Inventions have evolved and continue to evolve such that after several years of study, research and experimentation reach great developments. With continuing efforts to investigate the constituents of Philippine plants, we have pursued investigation of starch of the cassava plant (Manihot esculenta). Cassava tubers were gathered, ground and squeezed to extract starch. Starch obtained was weighed and divided into three equal parts; 80 grams in T1, T2 and T3.

 



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