Food safety is an important issue in protecting public health. Hazardous and harmful elements in food can poisoning or long-term effects on consumer health. These agents are generally divided into three main categories: biological, chemical, and physical.
1. Biological factors
Biological agents are among the most common foodborne hazards, including bacteria, viruses, and parasites.
• Bacteria: This is the main cause of food poisoning and digestive diseases such as diarrhea. Bacteria easily grow in food at temperatures from 10 to 60 degrees Celsius, especially in fresh or improperly processed foods such as meat, fish, eggs.
• Virus: Viruses such as hepatitis A and norovirus can cause serious infections. Viruses are often found in foods prepared in unsanitary conditions, or in fruits and vegetables watered with contaminated water.
• Parasite: Parasites such as worms and flukes can be transmitted through raw or undercooked foods such as beef, pork, fish and shellfish. If not cooked, these parasites will develop in the human body, causing diseases of the liver, lungs or digestive system.
2. Chemical factors
Chemical contamination in food comes from many different sources, including pesticides, heavy metals, and additives.
• Pesticides and veterinary drugs: These chemicals are used in agriculture and livestock, but if they are present in excess, they can be toxic to humans. Pesticides can be present in fruits and vegetables, while antibiotics and growth hormones can be present in meat and milk.
• Heavy metals: Heavy metals such as lead and mercury are commonly found in air, soil, and water and can leach into food during growing, processing, or packaging. These substances can accumulate in the body and cause chronic poisoning, affecting the nervous system and liver and kidney function.
• Food additives: Some additives that are not allowed to be used or used in the wrong dosage can cause dangerous side effects. For example, substandard industrial dyes or preservatives such as nitrates can affect health.
3. Physical factors
Physical contaminants of food include foreign objects such as pieces of metal, glass, sand, stones, or even hair and dirt from improper processing. These foreign objects often appear due to unsafe food processing or storage conditions and can cause mechanical damage if eaten.
4. Effects of hazardous elements in food
Consuming contaminated food can cause serious consequences such as acute poisoning, organ damage, or chronic illness. Common symptoms of food poisoning include abdominal pain, diarrhea, fever, and vomiting. Children, the elderly, and people with weakened immune systems are especially susceptible. Some toxic substances can cause cancer or affect fertility when accumulated in the body.
Food safety solutions
To minimize the risk of food contamination, consumers need to pay attention to the following principles:
1. Choose clean food sources: Buy food from reputable establishments, carefully check product labels and origins.
2. Wash and cook food thoroughly: Ensure hygiene and cooking Foods to kill bacteria and parasites.
3. Proper storage: Food should be stored at the right temperature to prevent bacteria from growing.
4. Check and comply with food safety regulations: Food businesses need to comply with food safety and hygiene standards and regulations of the Ministry of Health.
Overall, food safety awareness and compliance not only helps protect individual health but also contributes to improving public health.