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Investigatory Project

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Investigatory Project
Chapter 1
Introduction
Oil used in cooking foods is commonly derived from vegetable. Cooking oil is high in fat calories. Unsaturated and saturated oils have approximately the same number of fat grams and calories. Olives, safflower, corn, cottonseed, canola, sunflower seed, soy palm and coconut oil all contain about 13.5 grams fat and 120 calories per tablespoon. Cooking oil is commonly used for frying and it’s usually thrown away. The recycling of cooking oil also provides a form of revenue for restaurants, which are sometimes compensated by cooking oil recyclers for their used deep fryer oil. Cooking oil recycling also results in less used oil being disposed of in drains, which can clog sewage lines due to the build-up of fats.

Abstract
This investigatory project determines the possibility of purifying used cooking oil using sedimentation method. The activated carbon was also used in the experiment to absorb some dissolved substances in the oil.
The purified oil was compared to commercial oil in terms of color, odor and clearness using acceptability test The means of the samples were compared and revealed that purified oil had no significant difference to commercial cooking oil in terms of color/clearness and odor as the result of the acceptability test.

Statement of the Problem
This Investigatory project aims to answer the following questions:
Can this purified vegetable oil become clearly as new oil?
Is the product will be effective and safe to use?
Is this product may lessen your daily expenses?
How many times does this purified vegetable oil can be use?

Objectives of the Study
The Objective of the study are:
To help you to lessen your expenses in home because it’s thrifty.
To make the vegetable oil purified as new cooking oil.
Significance of the study: The used cooking oil cause problem to the kitchen pipes, clogging them and creating odors, therefore all of us, the students should do campaigns of information so our people

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