Furfural: Introduction, Structure, Properties & Uses

Ans. Methyl Furfural is an arenecarbaldehyde which is moderately soluble in water and can be used as a food flavouring agent. It can also be used as a fragrance agent for in-home products or similar industrial products.

Ans. Hydroxymethyl Furfuraldehyde is referred to as an organic compound which is acquired by dehydration of sugars. This compound is highly soluble in water and organic solvents. It is not present in fresh food and it is naturally generated when we heat food items which contain sugar. It is also used as an additive agent in the production of various fuels and chemicals and also in the food industry.

Ans. Furan is a colourless, volatile liquid which is used in some chemical manufacturing industries. It is occasionally reported to be found in foods. Furan is specifically found in canned or jarred foods such as soups, sauces, beans, pasta, meals and baby foods. Furan results in causing cancer in animals where animals are exposed to furan at higher doses.

Ans. Furfural is produced in large industries by taking plant mass by treating it with the help of acid. When this happens, the 5-carbon sugar molecules go through the process of dehydration reaction to give furfural. Depending upon the type of plant matter which is used anywhere between 3% and 10% of original plant mass can be recovered as furfural. Plants constantly grow and are being produced, that’s why it is considered a green or renewable source of chemical feedstocks.

Ans. Good fat is monounsaturated and polyunsaturated fat which are essential for the heart, cholesterol and overall health. These fats help to reduce:

• Reduce the risk of heart disease and stroke.
• Reduces triglycerides which are linked to heart disease and combats inflammation.
• Reduces blood pressure, and lowers the risk of stroke and heart disease.
• Increasing intake of healthy fats, thus reducing appetite and supporting weight reduction.
• Lower the bad LDL cholesterol while raising the good HDL cholesterol.

Ans. Fats are the source of energy in the human diet. The membranes which surround the cells physically separate the inside from the exterior of the cell and regulate the transport of chemicals in and out. A lipid molecule is a molecule which produces and is used as a structural component in cells. Fat is a transporter for fat-soluble vitamins A, D, E and K in the diet, and it aids their absorption in the intestine. Consumption of enough levels of fatty foods which contain vitamins is necessary for adequate intake of micronutrients.

Ans. The molisch test is a chemical test which is used for the detection of carbohydrates in a mixture or solution. Carbohydrates are attached to lipids or proteins, or they may exist in their natural state. It is also used to determine and discriminate between substances which can be degraded to monosaccharides like glycolipids. 

The Molisch test is based on concentrated acid which aids in the dehydration of sugars in order to create furfural.

Ans. Reactions such as acetylation, reductive amination, acylation, reduction to alcohols, decarboxylation, oxidation to carboxylic acids, Grignard reaction, and aldol reaction occur through the aldehyde functional group. Reactions like alkylation, hydrogenation, open ring reactions, and nitration are accomplished through the furan ring system.

• Furfural undergoes an oxidation reaction for conversion into furoic acid.
• It forms 2-methyl furan during the process of decarbonylation.
• In the process of hydrogenation, furfural performs tetrahydrofuran.
• It is converted into furan during the process of decarboxylation.
• Furfural in the process of reductive amination forms furfuryl tetrahydrofuran.
• During the process of decarbonylation, furfural forms 2-methyl furan.

Ans. Various different types of fats present in the food are Saturated fats, Unsaturated fats and Trans fats.

• Saturated Fats - These fats are also known as solid fats because they exist in solid form at room temperature. The basic carbon structure of these fatty acids is saturated with hydrogen atoms. These fats may increase health risks if a person consumes a lot of fats over a long period of time. 
• Unsaturated Fats - These fats are also known as good fats as they exist in liquid form at room temperature and also they are mostly derived from plant oils. These are of 2 types: Monounsaturated fats and Polyunsaturated fats.
  • Monounsaturated fats - These fat molecules are not saturated with hydrogen atoms, each fat molecule has bonded with one hydrogen atom. They are responsible for lowering LDL or bad cholesterol and maintaining healthy levels of good high-density lipoprotein(HDL) cholesterol.
  • Polyunsaturated fats - These fat molecules are not saturated with hydrogen atoms. A type of polyunsaturated fat is omega-6 fatty acids, these mostly occur in vegetable oils and processed foods.
• Trans Fats - Trans fats are those fats which are manufactured. They are the product of a process that adds hydrogen to liquid vegetable oils to make them more solid. These fats are also known as partially hydrogenated oils. These fats raise the level of LDL cholesterol and lower the level of HDL cholesterol. This results in increasing the risk of heart disease, stroke and type 2 diabetes.

Ans. The differences between Monosaccharides, Polysaccharides and Disaccharides are: