say NO to cola..

feel thirsty?? let have a can or bottle of coke,help u to quench one's thirst...LOL
cola which is a well known brand of product in the world, for sure that almost all kids or adults also like to drink soft drink...
exspecially me, the cola's admire...
i was get cola addictive since im study secondary school (but always let my parents nagging =.=')
i like cola due to it is cheaper and available in everywhere..
when u having the drink do you will check out what is the ingredient??
im not so clear about the content of cola..
i also feel curious about what make it so tasty??
let me explore it by today..

Buffer..do you know what the purpose of buffer?? actually it can used in beverage bottling..

Buffer is a mixture of a weak acid and the salt of its conjugate base.
Function of buffer is it maintains the pH at a constant eventhough small quantities of an acid or base is added to the buffer the pH does not change..

for buffer it will produce carbonic acid which has the formula H2CO3. It is also a name given to the solution of carbon dioxide in water, which contain small amounts of H2CO3. The salts of carbonic acids are call carbonates, it is a weak acid..

Carbon dioxide dissolved in water is in equilibrium with carbonic acid:
CO2 + H2O ⇌ H2CO3
Carbonic acid which produce through the buffer is used in making fizzy drink like cola.
the CO2 inside the water and carbonic acid is equilibrium, this make cola has a sharp taste and also fizzy gas, make the drink more tasty..

let go through the ingredient of coke, i found out that the soft drink we have drink consist of many harmfull chemical that will effect our body..reli is a bad news for me,since everyone ask me to control..i cannot stand for without coke,so sad..XD
now im going to elaborate the ingredients of cola as below:

-sugar

cola consist of sugar it's for sure due to it taste sweet,yet,a can of coke contain too many sugar approximately 10 teaspoon of sugar which is exceed our body needed..GOSH!! seem like taking the sugar and eating more than drinking..

Sugar, granulatedNutritional value per 100 g (3.5 oz)
Energy 390 kcal 1620 kJ
Carbohydrates
99.98 g
- Sugars 99.91 g
- Dietary fiber 0 g
Fat
0 g
Protein
0 g
Water
0.03 g
Riboflavin (Vit. B2) 0.019 mg
1%
Calcium 1 mg
0%
Iron 0.01 mg
0%
Potassium 2 mg
0%
Percentages are relative to US

recommendations for adults.

Source: USDA Nutrient database

According to this list we can notice that the main nutrient of sugar is carbohydrate, if consume too many carbohydrate will bring a lots of negetive effect to us, such as tooth decay, diabetes, obesity, gout and cancer and etc..

-caffeine

Caffeine is also a common ingredient of cola, originally prepared from kola nuts. Soft drinks typically contain about 10 to 50 milligrams of caffeine per serving. Caffeine used to enhance the soda of flavour.

Caffeine binds to receptors on the surface of heart muscle cells which leads to an increase in the level of cAMP inside the cells, it also will stimulate the nervous system and the increases heart rate.

-artificial sweetener

sugar substitute is a food additive that duplicates the effect of sugar in taste, but usually it has less food energy. Some sugar substitutes are natural and some are synthetic. In general those are not natural are referred to as artificial sweeteners.

if increased consumption of coke which contain of artificial sweeteners can cause body weight gain and obesity.

-acid

phosphoric acid is used to acidify foods and beverages such as cola, it provides a tangy and sour taste for cola. It also being a mass produced chemical, is available cheaply and in large quantities. The low cost and bulk availability is unlike more expensive natural seasonings that give comparable flavors.
drinking cola will result the skeleton effect because it contain of phoshoric acid which will leads to lower bone density.it also will cause headache and imflammation.

-Sodium

Sodium benzoate has the chemical formula NaC6H5CO2. Sodium benzoate act as a preservative in and stablizing agents cola and it is fungistatic under acidic conditions.it will cause high pressure and the person whose have asthma will get allergy after consuming sodium benzoate.

-carbon dioxide

carbon dioxide is an anhydride of the carbonic acid, it is also a good solvent which can reduce the amount of caffeine inside the drink.carbon dioxide has a sharp and acidic adour which can make the cola more tasty.it can produce a sour taste in mouth and stinging sensation in the nose and throat.

carbon dioxide is very toxic,a little of carbon dioxide about 1% will cause increased blood pressure and pulse rate,it also will reducing hearing. if about 5% it will causes difficulty in breathing accompanied by headache and shortness of breath. if more than 5% it will make us sweating, headache and dim vision.

-preservative,coloring and flavouring

preservative is a natural or synthatic chemical which added in cola to maintain the colour and taste of the drinks. the preservative can cause respiratory or other health problem of human like coma.coloring and flavouring are used to make the drinks look more attractive and more tasty,by the way the coloring and flavouringalso will bring the negative effect to our body such as allergy.

Carbonated beverage consumption has been linked with diabetes, hypertension, and kidney stones, all risk factors for chronic kidney disease. Cola beverages, in particular, contain phosphoric acid and have been associated with urinary changes that promote kidney stones. Drinking 2 or more colas per day was associated with increased risk of chronic kidney disease.

after knowing the ingredients of cola we can realise that cola does not bring any advantages to human, yet it just will cause human getting many diseases. for ur own good do not consume too many soft drinks as you can.Please say NO to cola...LOL