Food Additives Overview
40 Questions
2 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which of the following substances is classified as a food additive?

  • Natural herbs
  • Fresh vegetables
  • Sun-dried tomatoes
  • Riboflavin (correct)

    • What does an E number indicate about a food additive?

  • It is a natural substance.
  • It is chemically synthesized only.
  • It is harmful to health.
  • It has been deemed safe for consumption. (correct)

    • What perception do people generally have towards natural materials compared to synthetic ones?

  • Natural materials are considered less safe.
  • Natural materials are viewed positively while synthetic ones are often mistrusted. (correct)
  • Synthetic materials are preferred.
  • There is no difference in perception between natural and synthetic materials.

    • Which of the following is an example of a preserved food product mentioned in the content?

    <p>E200</p> Signup and view all the answers

    When is the second test scheduled?

    <p>7 November 2024</p> Signup and view all the answers

    Which of these vitamins is referenced as a safe food additive?

    <p>Vitamin B2</p> Signup and view all the answers

    Which of the following statements is NOT true about food additives?

    <p>They are always dangerous to health.</p> Signup and view all the answers

    What is the primary purpose of preservatives in food products?

    <p>Keep the product fresh for an extended period</p> Signup and view all the answers

    What might lead to suspicion regarding food additives?

    <p>Their origin as synthetic materials.</p> Signup and view all the answers

    Which E number range is associated with antioxidants?

    <p>300–399</p> Signup and view all the answers

    What common food additive is represented by the E number E300?

    <p>Vitamin C (Ascorbic acid)</p> Signup and view all the answers

    Which of the following E number ranges includes emulsifiers?

    <p>400–499</p> Signup and view all the answers

    Which of the following substances is used as an antimicrobial reagent?

    <p>Benzoates</p> Signup and view all the answers

    What is the main function of antioxidants in food?

    <p>To prolong shelf life by preventing oxidation</p> Signup and view all the answers

    Which of the following E numbers corresponds to a glazing agent or sweetener?

    <p>E900</p> Signup and view all the answers

    Which of the following substances primarily serves as a softener in cosmetic products?

    <p>Vaseline</p> Signup and view all the answers

    Which preservative is identified as E203?

    <p>Calcium sorbate</p> Signup and view all the answers

    What is the primary function of preservatives mentioned in the content?

    <p>Maintaining freshness and preventing spoilage</p> Signup and view all the answers

    Which of the following pain killers was discovered in 1961?

    <p>Ibuprofen</p> Signup and view all the answers

    Which component is correct about the calorie conversion?

    <p>1 J = 0.239 kcal</p> Signup and view all the answers

    What is the primary purpose of Rennie?

    <p>To neutralize gastric acid</p> Signup and view all the answers

    Which of the following substances is NOT classified as a preservative?

    <p>Magnesium hydroxide</p> Signup and view all the answers

    Which ingredient in Alka-Seltzer is responsible for helping relieve stomach discomfort?

    <p>Citric acid</p> Signup and view all the answers

    Which medication was first synthesized in 1853?

    <p>Aspirin</p> Signup and view all the answers

    What is Ranigast primarily designed to alleviate?

    <p>Heartburn pain</p> Signup and view all the answers

    What type of medications are classified under 'essential supplies' in home pharmacy?

    <p>Pain killers</p> Signup and view all the answers

    Which of the following is NOT an active component of antiseptic hand products?

    <p>Calcium oxalate</p> Signup and view all the answers

    Which of the following medications was synthesized in 1877?

    <p>Paracetamol</p> Signup and view all the answers

    What does the term 'Handrubs' refer to?

    <p>Hand sanitizers</p> Signup and view all the answers

    Which of the following statements about antimicrobial hand soap is true?

    <p>It is specifically formulated to combat bacteria.</p> Signup and view all the answers

    What is the function of boric acid in eye care products?

    <p>To soothe irritation</p> Signup and view all the answers

    Which substance is known for reducing the production of stomach acid?

    <p>Ranitidine hydrochloride</p> Signup and view all the answers

    What is the primary role of H2O2 in bulk solutions?

    <p>To eliminate contaminating spores.</p> Signup and view all the answers

    Which concentration range of H2O2 is mentioned for production, despite its complications?

    <p>3–6%</p> Signup and view all the answers

    What characteristic makes glycerol a preferred humectant for hand hygiene products?

    <p>It is safe and relatively inexpensive.</p> Signup and view all the answers

    Which of the following is NOT a type of medication mentioned?

    <p>Antibiotics</p> Signup and view all the answers

    Why might lowering the percentage of glycerol in hand hygiene products be beneficial?

    <p>To reduce stickiness.</p> Signup and view all the answers

    Which requirement is NOT listed for other humectants or emollients used in skin care?

    <p>Chemically enhanced</p> Signup and view all the answers

    What function do additional components in medicine pills serve?

    <p>To provide shape, coating, or consistency.</p> Signup and view all the answers

    How does H2O2 contribute to safety in production?

    <p>By preventing contamination.</p> Signup and view all the answers

    Study Notes

    Exam Information

    • The first exam was on October 10th, 2024.
    • The second exam is scheduled for November 7th, 2024.
    • The third exam is scheduled for December 12th, 2023.
    • The final exam date is January 9th, 2024 at 3 PM.

    Food Additives

    • Food additives are substances added to food to affect its characteristics, such as taste, texture, or shelf life.
    • The European Union (EU) and European Free Trade Association (EFTA) use a numbering scheme (E numbers) to identify food additives.
    • The European Food Safety Authority (EFSA) is responsible for the safety assessment and approval of E numbers.
    • E numbers are classified into groups based on the substance's function, including colors, preservatives, antioxidants, thickeners, stabilizers, emulsifiers, etc.

    Preservatives

    • Preservatives help extend the shelf life of food by inhibiting microbial growth.
    • Common examples of preservatives include benzoates (E200-E211) and sorbates (E203).
    • Preservatives have numerous applications in food, pharmaceuticals, cosmetics, pigments, dyes, biological substances, and wood.

    Antioxidants

    • Antioxidants prevent oxidation, which can degrade food quality and alter taste and appearance.
    • Examples of antioxidants include vitamin C (ascorbic acid, E300), gallic acid, and others.

    Emulsifiers

    • Emulsifiers stabilize mixtures like mayonnaise and margarine, preventing separation into different phases.
    • Glycerol (E422) is a common emulsifier.

    Home Pharmacy

    • Home pharmacy refers to essential medications and supplies kept at home for personal use.
    • Common household medications include painkillers, stomach disorder remedies, eye and ear drops, antiseptics, cough suppressants, diarrhea medication, and blood circulation enhancers.

    Pain Relievers

    • Ibuprofen, a non-steroidal anti-inflammatory drug, was discovered in 1961.
    • Paracetamol, an effective painkiller, was synthesized in 1877 and tested on humans in 1887.
    • Aspirin, a well-known painkiller, can also reduce inflammation. It was first synthesized in 1853 and later improved by Bayer in 1897-1899.

    Stomach Disorder Medications

    • Rennie neutralizes gastric acid, reducing stomach pain.
    • Alka-Seltzer, a drink, is used to relieve hangovers, headaches, and stomach discomfort.
    • Ranigast reduces heartburn by decreasing stomach acid production.

    Eye and Ear Drops

    • Optrex soothes irritated and tired eyes and cleanses them.
    • Common ingredients in eye and ear drops include water, boric acid, glycerol, gallotannin, witch-hazel extract, sodium tetraborate decahydrate, benzalkonium chloride, and calcium oxalate.

    Antiseptic Products

    • Antiseptic hand rubs typically contain ethanol (alcohol) as the main active ingredient, along with glycerol, hydrogen peroxide, and other additives.
    • Glycerol is added as a humectant to improve the product's feel and reduce stickiness.
    • Hydrogen peroxide is included for its antimicrobial properties and to help eliminate bacterial spores in the solution.

    Additional Medicine Components

    • Many pills and medications contain additional components that are not harmful and are used to adjust shape, coating, consistency, taste, and smell.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Related Documents

    Vilnius University Chemistry Lecture 6 PDF

    Description

    This quiz covers the fundamentals of food additives, including their functions, classifications, and regulatory aspects in the EU. It particularly emphasizes the E numbering system and the role of preservatives in extending shelf life. Test your knowledge on the various types of food additives and their applications.

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser