Innovative Work - Soft Drinks adulteration.pptx

Innovative Work - Soft Drinks adulteration.pptx

1. Comparative Study And Qualitative Analysis Of Different Brands Of Soft Drinks Available In Market. by KRISHNAPRIYA P B

2. Typically composed of carbonated water, a sweetener, and natural or artificial flavorings. Sweetening Elements: Sugar , high-fructose corn syrup, fruit juice, sugar substitutes (in diet drinks ), or a combination of these . Additional Ingredients : caffeine , colorings, preservatives, and more , depending on the specific beverage . COLD DRINKS

3. Referred as "soft drinks" in contrast to "hard drinks," which denote alcoholic beverages. Alcohol might be present in some cold drinks, they must contain less than 0.5% of the total volume to be considered non-alcoholic .

4. AIM To detect the presence of some key elements such as Carbon dioxide, Glucose, Phosphate and Alcohol in some of the commercially available soft drinks.

5. HEALTH RISKS OF SOFT DRINKS High sugar content leading to obesity and diabetes Increased risk of cancer and liver damage Presence of harmful acids affecting stomach and teeth NEED AND SIGNIFICANCE OF THE STUDY: “Most of the children in our society are addicts to junk foods and soft drinks”.

6. METHODS Test for Carbon dioxide ( CO 2 ) Procedure: 3 ml of each sample passed through 2 ml of lime water in semi-micro test tubes. Observation: Lime water turned milky. Confirmation: Presence of carbon dioxide. Test for Glucose Procedure: 2 ml of each cold drink in a test tube. Equal amounts of Fehling's solution A and Fehling's solution B added. Heated in a water bath for 10 minutes. Observation: Red precipitate formation. Confirmation: Presence of glucose.

7. METHODS Test for Alcohol Procedure: 2 ml of each cold drink in sample test tubes. Addition of iodine solution, potassium iodide, and sodium hydroxide solution. Heated in a hot water bath for 30 minutes. Observation: Yellow-colored precipitate. Confirmation: Presence of alcohol in cold drinks. Test for Phosphate Procedure: 2 ml of each cold drink in separate test tubes. Addition of ammonium molybdate followed by concentrated nitric acid. Heated. Observation: Canary yellow precipitate. Confirmation: Presence of phosphate ions.

8. RESULTS

9. FINDINGS Acidic due to the presence of citric and phosphoric acid . pH values of cold drinks vary among different brands due to differences in acidic content . All soft drinks contain dissolved CO2 , giving them a tangy taste. Fehling's solution test shows positive results for glucose in all soft drink samples, indicating the presence of glucose. All cold drinks also test positive for phosphate , suggesting the presence of phosphate in each brand. All brands of cold drinks contain sucrose , but the amount varies across brands. Fanta has the highest sucrose content among the tested brands . Pepsi and Coca-Cola are relatively more acidic compared to other soft drinks .

10. Disadvantages of Cold Drinks High sugar content - harmful for individuals with diabetes . Soft drinks can lead to weight gain by disrupting the body's natural hunger suppression mechanism. Can erode teeth and weaken bones due to their ability to dissolve calcium. P resence of "Phosphoric acid" with a low pH level can even dissolve a nail in about 4 days, indicating its corrosive nature.

11. CONCLUSION All tested cold drink samples contained glucose and phosphate. Six samples contained carbon dioxide, while three samples did not. With the exception of Tropicana, Frooti , Minute Maid, and Mirinda , all the samples contained alcohol.

12. SUGGESTIONS FOR HEALTHY BEVERAGE CHOICES Choose water as your primary beverage to stay hydrated. Avoid sugary drinks such as cordial, energy drinks, sports drinks, fruit drinks, vitamins-style waters, flavored mineral waters, and soft drinks. Sugary drinks are unnecessary for good health and can lead to weight gain. Consumption of sugary drinks can contribute to tooth erosion and decay. Excessive sugar intake can impair memory and learning abilities. Soft drink consumption is linked to increased aggression.