STM 4033: Natural Toxins in Food
18 Questions
0 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

What is the primary source of aflatoxin contamination in foods?

  • Soil (correct)
  • Water
  • Pests
  • Air
  • Which of the following foods is NOT commonly infected with aflatoxin-producing Aspergillus?

  • Peanuts
  • Grapes (correct)
  • Soybeans
  • Corn
  • What is the effect of aflatoxin on human health?

  • It causes cancer and cirrhosis of the liver (correct)
  • It has no harmful effect
  • It enhances enzyme activity
  • It increases antioxidant properties
  • What is the mechanism by which aflatoxin causes harm?

    <p>By inducing mutations</p> Signup and view all the answers

    Which of the following is a way to reduce the risk of aflatoxin contamination?

    <p>All of the above</p> Signup and view all the answers

    What type of compounds are phytates and phytic acid?

    <p>Natural toxins</p> Signup and view all the answers

    What is the optimal condition for soaking to eliminate phytates?

    <p>55°C, pH 4.5-5.0</p> Signup and view all the answers

    What is the protein in raw egg white that binds to iron?

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

    What is the effect of oxalates found in spinach and rhubarb on calcium absorption?

    <p>They inhibit calcium absorption</p> Signup and view all the answers

    What is the outcome of consuming large amounts of cassava or fruit pits containing cyanogenic glycosides?

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

    What is the effect of cooking on solanine and chaconine in potatoes?

    <p>They are not destroyed by heat</p> Signup and view all the answers

    What is the effect of Agaricus bisporus mushrooms on mice?

    <p>They promote cancer</p> Signup and view all the answers

    What is the action level for saxitoxin equivalent in paralytic shellfish poisoning (PSP)?

    <p>0.8 ppm</p> Signup and view all the answers

    What is the effect of heating on mycotoxins?

    <p>It completely destroys them at high temperatures</p> Signup and view all the answers

    What is the benefit of eating raw food in terms of natural toxins?

    <p>It reduces exposure to some natural toxins</p> Signup and view all the answers

    What is the action level for okadaic acid plus 35-methyl okadaic acid in diarrhetic shellfish poisoning (DSP)?

    <p>0.2 ppm</p> Signup and view all the answers

    Which of the following is NOT a recognized fish poisoning syndrome in the United States?

    <p>Flavonoid poisoning (FP)</p> Signup and view all the answers

    What is the effect of roasting peanuts on the toxicity of aflatoxin B1?

    <p>It reduces the toxicity by 70%</p> Signup and view all the answers

    More Like This

    Food Toxicology and Excretion
    5 questions
    Food toxicology
    5 questions

    Food toxicology

    DexterousDoppelganger avatar
    DexterousDoppelganger
    Synthetic vs. Natural Food Ingredients
    5 questions
    Use Quizgecko on...
    Browser
    Browser