Preservatives, natural, artificial preservatives and side effects of preservatives
What is a preservative?
Substances that are mixed with food items in controlled or optimum quantities to protect them from the attack and spoilage caused by various microorganisms (such as bacteria, yeast, and mold) are called preservatives.
What is a natural preservative?
Substances obtained from natural sources that are used in food preservation and processing are called natural food preservatives. Commonly used natural food preservatives include salt, sugar, mustard oil, turmeric, honey, alcohol, vinegar, etc.
What is a synthetic (artificial) preservative?
Substances synthesized or obtained from artificial sources that are used in food preservation and processing are known as synthetic food preservatives or chemical food preservatives.
Which one is more health-friendly between natural and synthetic preservatives in food preservation? Analyze.
In food preservation, natural preservatives are far more health-friendly than synthetic ones. The health risks associated with natural preservatives are negligible, and many offer additional health benefits. Conversely, synthetic preservatives carry significant health hazards if consumed over a long period or in excessive amounts.
Health Benefits of Natural Preservatives (e.g., Vinegar):
- (1) Enhances Appetite: The presence of vinegar as a natural preservative in food items significantly enhances appetite and food relish.
- (2) Boosts Metabolism and Digestion: It improves blood circulation, boosts digestive power, facilitates the smooth excretion of toxic waste fluids from the body, and helps eliminate unnecessary blood lipids/fats, thereby keeping the body slim.
- (3) Cardiovascular Health: Regular intake of vinegar-preserved food helps lower blood pressure and reduces the level of bad cholesterol in the blood.
- (4) Anti-cancer Properties: Studies indicate that consuming a diet enriched with vinegar shows promising results in preventing tumor growth and cancer.
Health Risks of Synthetic Preservatives:
- Calcium Propanoate: It possesses mild toxicity and can aggravate allergic reactions or asthma symptoms in sensitive individuals.
- Sodium Benzoate: It can trigger hypersensitivity (allergies) and exert adverse effects on brain function. Furthermore, sodium benzoate can react with ascorbic acid (Vitamin C) present in food to form benzene, which is a recognized carcinogen (cancer-causing agent).
- Parabens: Parabens mimic the hormone estrogen in the body. This hormonal disruption plays a major role in increasing the risk of breast cancer and inducing precocious (premature) puberty in young girls.
- Sulfur Dioxide and Sulfites: These agents destroy Vitamin B1 (thiamine) in food. Excessive consumption can cause asthma attacks, skin allergies, migraines, swelling of the throat, and undesirable behavioral changes in children, such as increased anger or irritability.
- Nitrates and Nitrites: These oxidizing salts readily react with secondary amines or proteins in meat to form nitrosamines, which are highly potent carcinogens that can induce stomach and esophageal cancer.
- BHA and BHT: Butylated Hydroxyanisole (BHA) and Butylated Hydroxytoluene (BHT) exhibit carcinogenic and allergenic properties. Due to these health hazards, their legal permissible limit in food is kept extremely low.
- Propyl Gallate: Overuse or high concentration of propyl gallate can lead to asthma, irritation or burning sensations in the stomach and skin, and severe allergic reactions. Prolonged exposure may even cause damage to the kidneys and liver.
