Category: مقالات آزمایشگاه

فلزات سنگین در مواد غذایی-بخش 5

Heavy metals in foods – Part 5

Arsenic measurement methods Soluble inorganic arsenic is acutely toxic, and ingestion of large doses leads to gastrointestinal symptoms, disturbances of cardiovascular and nervous system functions, and eventually death. In survivors, bone marrow depression, hemolysis, hepatomegaly, Melanesia, polyneuropathy and encephalopathy may be observed. Chronic arsenic exposure in Taiwan has been shown to cause black foot disease […]

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فلزات سنگین در مواد غذایی-بخش 4

Heavy metals in foods – Part 4

Arsenic in rice Exposure to heavy metals such as arsenic (As), lead (Pb), and cadmium (Cd) in either the short or the long term can cause cancers in humans. Dietary intake and consumption of rice (Oryza sativa L.) is increasing in Iran, and several studies on the concentration of heavy metals in rice have been […]

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آلاینده‌های مواد غذایی-بخش 4

FOOD CONTAMINATION – Part Four

FOOD AND PESTICIDES Pesticide residue refers to the pesticides that may remain on or in food after they are applied to food crops. The maximum allowable levels of these residues in foods are often stipulated by regulatory bodies in many countries. Regulations such as pre-harvest intervals also often prevent harvest of crop or livestock products […]

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آلاینده‌های مواد غذایی-بخش 3

FOOD CONTAMINATION – Part Three

Mycotoxins  Mycotoxins are naturally occurring toxins produced by certain moulds (fungi) and can be found in food. The moulds grow on a variety of different crops and foodstuffs including cereals, nuts, spices, dried fruits, apples and coffee beans, often under warm and humid conditions. Mycotoxins can cause a variety of adverse health effects and pose […]

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آلاینده‌های مواد غذایی-بخش 2

FOOD CONTAMINATION – Part Two

HEAVY METALS IN THE FOOD Heavy metals aren’t just something to avoid if you don’t like Black Sabbath. But while you’ve probably heard of this group of elements (and the dangers associated with ingesting them), you might not know why they’re such a worry to health experts. This is all especially relevant given how many […]

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آلاینده‌های مواد غذایی-بخش 1

FOOD CONTAMINATION – Part One

FOOD CONTAMINATION There are three different types of food contamination – chemical, physical and biological. All foods are at risk of becoming contaminated, which increases the chance of the food making someone sick. It’s important to know how food can become contaminated so that you can protect against it. Chemical contamination refers to food that has […]

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فلزات سنگین در مواد غذایی-بخش 3

Heavy metals in foods – Part Three

Freaking out about heavy metals in your food? Here’s what you should know – Part Three What can I do to decrease my exposure? Since you’re not going to be able to test all of your food for heavy metals before every meal, the best and easiest way to minimize heavy metal exposure is to […]

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فلزات سنگین و برنج

Heavy metals in foods – Part Two

Freaking out about heavy metals in your food? Here’s what you should know – Part Two Why are heavy metals dangerous? The short answer is that heavy metals react with your cellular machinery in ways that are often problematic. Small amounts can get filtered out with your urine, but heavy metals mostly stick around in […]

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فلزات سنگین در مواد غذایی

Heavy metals in foods – Part One

Freaking out about heavy metals in your food? Here’s what you should know – Part One Heavy metals aren’t just something to avoid if you don’t like Black Sabbath. But while you’ve probably heard of this group of elements (and the dangers associated with ingesting them), you might not know why they’re such a worry […]

More