oils
fats that are liquid at room temperature are called oils. unsaturated fats belongs to this category, consuming food containing unsaturated fat helps improve body cholesterol levels.
there are two types of fats monounsaturated fats and poly unsaturated fats. monounsaturated fat is found in nuts, vegetables oils avocado etc.. and poly unsaturated fat found in oils such as sunflower, corn and soybean.
types of oils
1) organic oils
2) mineral oils
1) organic oils : organic oils are produced in remarkable diversity by plants, animals and other organisms through natural metabolic processes. lipid is the scientific term for the fatty acids, steroids and similar chemicals often found in the oils produced by living things, while oil refers to an overall mixture of chemicals . organic oils may also contain chemicals other than lipids, including proteins, waxes and alkaloids.
2) mineral oils : crude oil or petroleum and its refined components collectively termed as petrochemicals. petrochemicals are crucial resources in the modern economy. crude oil originate from ancient fossilized organic materials, such as zooplankton and algae which geo chemical process convert into oil.
fats
some compound that are soluble in organic solvents and mostly insoluble in water are called fats. they are solid at room temperature, there are two types of fats saturated fat and trans fat. saturated fat is also known as solid fat. saturated fat in fish and poultry less when compared to animal fat or red meat, this fat can increase your cholesterol level.
tropical oil such as cocoa butter, coconut oil, palm oil is also have saturated fats. it is m ostly found in non-dairy products and snacks in large quantity. cakes, butter, cookies are some examples of food containing maximum saturated fats.
a fat is changed to increase its shelf life the process to make this change happen is called hydrogenation. this fat is harder at room temperature, the importance of trans fat is that it makes flakier pie crusts and crispier cranker.
types of fats :
I) saturated fat
II) trans fat and
III) unsaturated fats
I) saturated fat : saturated fat is solid at room temperature, which is why it is also known as solid fat. it is a type of fat in which the fatty acid chain have all single bonds.
II) trans fat : this is a fat that has been changed by a process called hydrogenation. this process increases the shelf life of fat and makes the fat harder at room temperature.
III) unsaturated fat : unsaturated fat is liquid at room temperature. unsaturated fats contain double or triple bonds between the molecules. there are two types of unsaturated fats
a) mono unsaturated fat : monounsaturated fats are simply fat molecules that have one unsaturated carbon bond in the molecule, this is also called double bond. examples of foods high in monounsaturated fats include plant based liquid oils such as olive oil, canola oil, peanut oil, sunflower oil and sesame oil.
b) polyunsaturated fats : polyunsaturated fats are fats that contain more than one double bond in their backbone. polyunsaturated fatty acids can be found mostly in nuts, seeds, fish, seed oils and oysters.