Generally, this study aims to determine if jackfruit pulp (Artocarpus heterophyllus) can be a source of ethanol. Specifically, this study aims to answer the following questions: 1. Is there a significant relationship between the percent yield of ethanol and the different lengths of fermentation of the jackfruit pulp (Artocarpus heterophyllus)? 2. Is there a significant difference between the density, color, boiling point, and flame test of ethanol from jackfruit pulp (Artocarpus heterophyllus ) among the different lengths of fermentation?
1. There is no significant relationship between percent yield of ethanol, and the lengths of fermentation of jackfruit pulp (Artocarpus heterophyllus). 2. There is no significant difference between the density, color, boiling point, and flame test of ethanol from jackfruit pulp (Artocarpus heterophyllus) among the different lengths of fermentation.
Significance of the Study
The study production of ethanol from jackfruit pulp (Artocarpus heterophyllus) would be a great help for the fuel users and producers. When researcher creates another source of fuels from plants and fruits; this can ease the maximum importation of fuel in the country. This is also an environmental friendly source of energy. This study also helps promote the program recycle waste of the government for the better environmental which are Reduce, Reuse, and Recycle.
Scope and Limitation
The study is only limited on the extraction of ethanol from jackfruit pulp. The independent variable is the length of fermentation of jackfruit pulp, while the dependent variable is density, color, flame test, boiling point and percent yield.
Definition of Terms
The following terms were defined conceptually and operationally for more clear and easy understanding. Fermentation is a form of respiration that converts energy from glucose when the supply of oxygen is not sufficient: yeast and some bacteria use alcohol fermentation to release energy and carbon dioxide. (Glencoe, Life Science, pg.790)
As used in the study, fermentation is the process used in producing ethanol from jackfruit pulp.
Distillation is a process of separating the components of the mixtures by heating.
(Popular Science, vol.6, pg.198)
As used in the study, it is the final process used in producing ethanol from jackfruit pulp. Ethanol (ethyl alcohol) is an alcohol being tested for use as a fuel for cans. It is produced by the process of fermentation. (Physical Science, chapter 22 pg. 494)
African Breadfruit (Treculia africana) Seed as Adjunct in Ethanol Production.
African breadfruit seeds have the potentials as carbon source for ethanol production with a carbohydrate value of 72.19%. On malting the seeds at 28±2oC for 9 days it yielded a 96% germination capacity and total malting loss of 25.70%. Grain dormancy was broken by the second day of malting. Malted breadfruit seeds were ground and defatted to 0.78% fat content. Full fat breadfruit and defatted breadfruit flours were used as adjuncts in the ratio of 3:5 (adjuncts: barley). Fermentation parameters such as wort fermentable sugar, specific gravity, extract yield and ethanol were measured over the 9 days of fermentation. Extract yields were 12.59, 9.66 and 11.23% while ethanol production was 5.79, 6.39 and6.10% for wort from defatted breadfruit, full fat breadfruit and maize, respectively.(http://www.sciencedomain.org/ download.php?f=1296215442%20Published _Nwabueze_1522_2011_EJFRR.pdf)
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