Investigatory continuing efforts to investigate the constituents
Investigatory project Cassava starch as an effective component for Ideal Biodegradable Plastic Members: Wesley Ong Kyle Cheng Georwin Ng Charles Ngan Raphael Chan Table of contents I. Introduction II.
Review of related literature III. Methodology Introduction A. Background of the study The cassava root is long and tapered, with a firm, homogeneous flesh encased in a detachable rind, about 1mm thick, rough and brown on the outside.
Commercial varieties can be 5 to 10 cm in diameter at the top, and around 15 cm to 30 cm long. A woody cordon runs along the root’s axis. The flesh can be chalk-white or yellowish.Cassava roots are very rich in starch, and contain significant amounts of calcium (50 mg/100g), phosphorus (40 mg/100g) and vitamin C (25 mg/100g).
However, they are poor in protein and other nutrients. In contrast, cassava leaves are a good source of protein, and are rich in the amino acid lysine, though deficient in methionine and possibly tryptophan. These components are components of biodegradable plastic. Significance of the study. It is very important because you may use cassava starch as a plastic. You may use simple materials to make plastic, which can reduce harm to our environment.B.
Statement of the problem. The problem is if cassava starch is an effective component for biodegradable plastic. Hypothesis Cassava starch is an effective component for biodegradable plastic Scope and limitations The principal variable of this project is the cassava starch. The locale of this project is it could help save the environment and reduce use of plastic that takes a lot of years to degrade. 1.
Review of related literature 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. Treatments also consisted of 60 ml plastic resin glue and resin with 50 grams of flour catalyst for T1, 100 grams for T2 and 150 grams in T3. The components in every treatment were mixed, stirred and then poured in silk screen with oil and then sun-dried. Test for capacity to carry weight indicated T3 as the best.
For its ability to hold water, all products passed but for biodegradability, T1 gave the best results. The tensile and bending properties had been tested using the Universal Testing Machine and Analysis showed that T3 had the greatest tensile strength while T2 had the greatest bending property. Using ANOVA single Factor, results showed that there was significant difference among the three treatments in bending and tensile strength.
However, for biodegradability test there was no significant difference. The final phase of the study determined the effectiveness of cassava starch as component of biodegradable plastic.Results confirmed that cassava starch is ideal as tests proved its worth. 2. Methodology Phase 1 The materials you need for this project are acetone(100pesos), Styrofoam materials (20pesos), cassava starch (50 pesos)and 2glass container (20 pesos). Total 190 pesos.
Phase 2 In setup A: Pour some acetone into the glass container. Put small bits of syrofoam into the acetone. Keep putting Styrofoam until the Styrofoam melts. Add some starch during this process. After these are accomplished, let the acetone evaporate for about 3 minutes.
While it is evaporating, your biodegradable plastic would start to form.Phase 3 In another setup, called setup B: Pour some acetone into the glass container. Put small bits of Styrofoam into the acetone. Keep putting Styrofoam until the Styrofoam melts.
Don’t add some starch during this process. After these are accomplished, let the acetone evaporate for about 3 minutes. While it is evaporating, your biodegradable plastic would start to form. Phase 4 While these acetone are evaporating, shape and mold the plastic. Phase 5 Let the 2 plastics dry for about an hour and compare their durability.
Write the data down using charts and compare the data.Procedure | No. of Days | Target Date/Month to Conduct this part | A. Buy materials| 1 month| September| B. Gathering of info| 1 month| october| C.
Phase 2| 1 month| november| D. Phase 3| 1 month| december| G. Phase 4| 1 month| january| H. Phase 5| 3 days| january| | | | | | | | | | Time Table Bibliogaphy http://www. investigatoryprojectexample.
com/biochemistry/cassava-starch-as-biodegradable-plastic. html http://www. instructables. com/id/How-to-%22make%22-plastic/step4/other-usefull-info/ http://www. instructables.