documents.mx risks due to chemicals in food by sharanya nagaraj

7/23/2019 Documents.mx Risks Due to Chemicals in Food by Sharanya Nagaraj

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RISKS DUE

TOCHEMICALS

IN FOOD



IntroductionAll foods, living matter and, indeed, our bodies themselves

are made up of chemicals.Many of the chemicals found in food occur naturally and

include nutrients such as carbohydrates, protein, fat, fibreand a host of other elements and compounds.

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All foods, living matter and, indeed,our bodies themselves are made upof chemicals.•

There are many potentially harmfulor toxic chemicals present in thefood we eat, whether occurringnaturally, as contaminants, or asdeliberate additives..



Chemicals present in our food in many ways.

Contaminants

Additives Pesticides or Veterinary Medicines

ome natural components of plants may themselvescause toxicity. !g. glycoal"aloids in potatoes.



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These are the substances present in certain foodstuffsdue to environmental contamination, cultivation practices,

production processes or coo"ing practices.ome contaminants are formed naturally, carried over tofood from water, soil or air. #r created as a bi&productof the food production process itself.

%f contaminants present above certain levels, these canpose a threat to human health.



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A%T%V!These are substances added to food to

preserve flavor or enhance its taste andappearance.The best "nown additives are0•

Preservatives•(lavors•Colors



Preservatives are mainly used

To prevent bacterial and fungal growth.

To prevent oxidation 2which can lead torancidity3.

To inhibit natural ripening of fruits andvegetables.



long lasting food means more preservatives.

All pac"aged foods are tinted with preservatives.

odium ben4oate and ben4oic acid are food preservatives found in sauces,fruit 5uices, 5ams and pic"led products. can cause allergic reactions and other

side effects.

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Potassium bromate is used in breads and other ba"ery products to increasetheir volume. The residual amount of this oxidi4ing agent in bread, is harmfulif consumed.

odium $itrates and nitrites are chemical compounds commonly used in ma"ingcured meat products li"e bacon and hot dogs. !xcessive consumption of sodiumnitrate is "nown to worsen asthma and decrease lung function.

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Color additives are used in foods for many reasons0

To offset color loss due to exposure to light, air,temperature extremes, moisture and storage conditions.

To correct natural variations in color.

To enhance colors that occur naturally

To provide color to colorless and 6fun6 foods.



used in food products cause many health problems 8 Children should beencouraged to ta"e food made with fresh fruits and vegetables

Artificial colours are made out of petro chemicals. #range colour is generallyused to give colour to sweet recipes li"e +avva"esari . Children who consume

sweet, 5un" and fast foodwith artificial colours face behaviour problems andother problems of growth. There would be more ill effects in the long runand children lose concentration.



*eep away from candies, and sweets. +ed colour that isused in these causes some types of allergies and chronicdiseases li"e thyroid. /sage of dar" red colour causeddeadly cancer and other genetic problems

. angerous tumours are formed in brain due to blue9 andblue: colours. +ed rashes may appear on the s"in. Thiscolour may cause s"in related and other chronic allergies.

1reen colour is used while coo"ing green peas, gel, "ulfis, paneer recipes, ca"es and 5ams. !xcess use of thiscolour causes asthma and cancer.



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(lavorings are chemical formulations that mimic the flavors and smells offoods.

Mconald;s, for example, adds 6chic"en flavor6 to its Chic"en Mc$uggets

The chemical #ctyl Acetate is the main component in orange flavor, whileisoamyl acetate is the main component of banana flavor.

(lavors causes less harm comparitively.

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Pesticides are substances or mixture of substances intended for preventing,destroying, repelling or mitigating any pest.

(ive common types of deadly pesticides are the herbicides ,fungicides,heavy metals ,insecticides and T.

<erbicides "ill the unwanted weeds in the field without affecting the crops.<erbicides have a high variable toxicity. %t is one of the possible causes ofcarcinogenicity as well as other continuing problems such as being a partcause of Par"inson=s disease.

(ungicides are chemical or biological substance used against fungi or fungalspores. +esidues of the fungicides have been found on the food that humansconsume.

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Plants also ta"e up small amounts of heavy metals and can concentratethem. <eavy metals such as lead and cadmium are already toxic in small>uantities.

The insecticide is a pesticide used against insects that damages the crops.

The insecticide is used in agriculture, industry, medicine, and in the householdT or dichlorodiphenyltrichloroethane is a powerful pesticide that is long

banned because it is poisonous to humans and animals. #ne of the better"nown effects of T is the decrease in the bird population as it reduces thethic"ness of the egg shells on predatory birds decreasing its viability. %n

humans, this causes defects in newborn babies.

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ome of the effects of pesticide on humans are the damage tothe reproductive system, nervous system, and other organs,behavioural and developmental abnormalities, interference of hormone

function as well as affecting the immunity system. The pesticidesgather in the fat deposits in the body where they stay and cause alot of damage. Most of the infants and young children drin"ing breastmil" ingest pesticides as women who eat fruits and vegetables thathave been sprayed with pesticides may pass the pesticides through

their breast mil" while pregnant women can pass the pesticides ontotheir fetus.

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Many plants in the olanaceae family contain glycoal"aloids, and they areconsidered to be natural toxins.

Amongst the most widely cultivated food crops, aubergines, tomatoes andpotatoes are in the olanaceae famil

Causes nausea and vomiting, diarrhoea, stomach cramps and headache. Moreserious cases have experienced neurological problems, including hallucinationsand paralysis, and fatalities have also been recorded.



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