Bioactive Compounds in Food
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Questions and Answers

Which vitamins are inadequately absorbed in cystic fibrosis?

  • Vitamins B, D, and K
  • Vitamins B and C
  • Vitamins A, D, E, and K (correct)
  • Vitamins A, C, and E

Which of the following compounds is NOT involved in the synthesis of eicosanoids?

  • Anthocyanidins
  • Isoflavonoids (correct)
  • Glucosinolates
  • Indoles

What is the role of vitamin E in platelet function?

  • It decreases platelet function (correct)
  • It has no effect on platelet function
  • It increases platelet function
  • It is involved in platelet aggregation

What is the role of beta-carotene in the prevention of atherosclerosis?

<p>It reduces the oxidation of LDL (C)</p> Signup and view all the answers

Which of the following is a type of phytochemical?

<p>Isoflavonoids (D)</p> Signup and view all the answers

What is the role of antioxidants in pulmonary disease?

<p>They decrease the oxidation of LDL (C)</p> Signup and view all the answers

Which of the following is a benefit of indoles?

<p>Reducing the risk of estrogen-dependent cancer (C)</p> Signup and view all the answers

What is the role of glucosinolates in the body?

<p>They activate liver detoxification enzymes (C)</p> Signup and view all the answers

What is the role of carotenoids in the human body?

<p>They act as antioxidants and protect against various types of cancer. (B)</p> Signup and view all the answers

Which of the following is NOT a role of carotenoids?

<p>Exhibiting anti-inflammatory activity. (B)</p> Signup and view all the answers

What type of fruits and vegetables are rich in carotenoids?

<p>Fruits and vegetables. (A)</p> Signup and view all the answers

What is the effect of carotenoids on the digestive tract?

<p>They provide protection against digestive tract cancer. (B)</p> Signup and view all the answers

What is the relationship between carotenoids and antioxidants?

<p>Carotenoids are antioxidants that protect against cancer. (A)</p> Signup and view all the answers

What is the role of carotenoids in the prevention of cancer?

<p>They act as antioxidants and protect against various types of cancer. (B)</p> Signup and view all the answers

What is the effect of carotenoids on the liver?

<p>They have no effect on the liver. (A)</p> Signup and view all the answers

Which of the following is a type of phytochemical that is not related to carotenoids?

<p>Limonoids. (B)</p> Signup and view all the answers

What is the primary use of Evening Primrose oil as a dietary supplement?

<p>Treating atopic eczema (C)</p> Signup and view all the answers

Which of the following is NOT a property of Garlic?

<p>Antioxidant (C)</p> Signup and view all the answers

What is the primary mechanism by which phytochemicals provide health benefits?

<p>As scavengers of reactive or toxic chemicals (D)</p> Signup and view all the answers

Which of the following herbs is NOT associated with protection or treatment of disease conditions?

<p>Broccoli (B)</p> Signup and view all the answers

What is the primary function of Ginseng as a herb?

<p>Adaptogen (C)</p> Signup and view all the answers

What is the primary mechanism by which phytochemicals support beneficial bacteria in the intestine?

<p>As fermentation substrates (A)</p> Signup and view all the answers

Flashcards

How do Eicosanoids relate to Coronary Heart Disease?

Eicosanoids are compounds produced in the body that play a role in inflammation, blood clotting, and other processes. Their synthesis can be influenced by dietary factors and may be linked to the risk of coronary heart disease.

What are Isoflavonoids and where are they found?

Isoflavonoids, found in soybeans, are compounds with potential health benefits. They have been studied for their possible roles in treating cancers and osteoporosis, but further research is needed.

What are Anthocyanidins and where are they found?

Anthocyanidins are pigments responsible for the vibrant colors of fruits and flowers. Their antioxidant and anti-mutagenic properties suggest possible health benefits.

Where are Glucosinolates found and what do they do?

Glucosinolates are compounds found in cruciferous vegetables, such as broccoli and cauliflower. They can activate enzymes in the liver involved in detoxification, potentially offering protection against cancer.

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What are Indoles and what are their possible health benefits?

Indoles are compounds found in various plants, including cruciferous vegetables. They are being investigated for their potential role in reducing the risk of estrogen-dependent cancers.

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What is the role of Fiber in health?

Dietary fiber, found in vegetables, fruits, and whole grains, plays a role in digestive health. It adds bulk to stool, promotes regularity, and is linked to a reduced risk of colorectal diseases.

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How do Beta-carotene and Vitamin E protect the heart?

Beta-carotene and vitamin E are antioxidants that can help protect against heart disease. They help prevent the oxidation of LDL (bad) cholesterol, which is a key step in the development of atherosclerosis.

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How does Vitamin E affect platelet function?

Vitamin E can impact platelet function, which is involved in blood clotting. At high doses, Vitamin E can decrease platelet activity without being toxic.

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How does diabetes impact oxidation?

In diabetes, there is a depletion of antioxidants like beta-carotene and vitamin E. This depletion contributes to LDL oxidation and may increase the risk of atherosclerosis.

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How can beta-carotene and Vitamin E help lungs?

Beta-carotene and Vitamin E have been shown to decrease oxidative stress in conditions like pulmonary diseases. This suggests their potential role in protecting the lungs from damaging substances like smoke.

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What challenges do people with cystic fibrosis face with vitamins?

Cystic fibrosis is a genetic disease that affects the digestive system. People with cystic fibrosis have difficulty absorbing fat-soluble vitamins, which may require supplementation.

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How does pancreatic function affect vitamin needs?

Pancreatic function impairment can lead to deficiencies in the absorption of fat-soluble vitamins. Supplementation with vitamins A, D, E, and K may be needed.

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How do tocotrienols and tocopherols potentially fight cancer?

Tocotrienols and tocopherols, found in grains, are compounds that have been studied for their potential anticancer effects. They can trigger cell death (apoptosis) and halt cell growth.

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What are carotenoids and what cancers are they potentially helpful for?

Carotenoids are antioxidants found in fruits and vegetables. Their protective effects against certain cancers have been investigated. They are believed to protect against cancers like uterine, prostate, colorectal, lung, and digestive tract cancers.

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What are limonoids and what health benefits are they associated with?

Limonoids are found in citrus fruits. They have the potential to interfere with cancer-causing processes by influencing liver enzymes involved in detoxification.

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What are phytosterols and what are their health benefits?

Phytosterols are plant-based compounds that have various health benefits, including anti-inflammatory, anti-cancer, and cholesterol-lowering effects.

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What are phenolic constituents and what are their health benefits?

Phenolic constituents are antioxidants found in plants and whole grains. They have been linked to a reduced risk of heart disease, diabetes, and other health conditions.

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What are flavonoids and what are their health benefits?

Flavonoids are antioxidants found in grapes, wines, and berries. They have various protective effects like fighting free radicals, inflammation, and allergies.

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What are catechin and gallic acids and what are their health benefits?

Catechin and gallic acids are antioxidants found in various foods like grapes, berries, cocoa, green tea, and acacia. They can protect against damage from free radicals and fight infections.

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What is evening primrose oil and what is it used for?

Evening Primrose oil is a supplement derived from the seeds of the evening primrose plant. It is a source of linoleic acid and is used for treating atopic eczema.

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What health benefits are garlic known for?

Garlic is a common spice with potential health benefits. It exhibits antibacterial, antifungal, antithrombotic, and anti-inflammatory properties.

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What are the health benefits of ginger?

Ginger is a spice with a variety of potential health benefits. It can help with nausea, digestion, and inflammation.

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What is ginseng and what are its health benefits?

Ginseng is a plant with a long history of use in traditional medicine. It is known as an adaptogen, meaning it helps the body adapt to stress. It is believed to enhance the immune system.

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What are the potential health benefits of green tea?

Green tea is a beverage rich in antioxidants. It may help protect against cardiovascular disease and strengthen the immune system.

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Study Notes

Nutraceuticals and Phytochemicals

  • Eicosanoids synthesis reduces the risk of Coronary Heart Disease (CHD)
  • Isoflavonoids, found in soybeans, are used for treating cancers and osteoporosis
  • Anthocyanidins, present in fruits and flowers, have antioxidant and anti-mutagenic properties
  • Glucosinolates, found in cruciferous vegetables, activate liver detoxification enzymes and inhibit the neoplastic effect of various carcinogens
  • Indoles reduce the risk of estrogen-dependent cancer

Fiber and Vitamins as Nutraceuticals

  • Fiber, found in various vegetables, fruits, and whole grains, protects against colorectal diseases
  • Beta-carotene and vitamin E, acting as antioxidants, reduce the risk of heart disease by preventing the oxidation of LDL
  • Vitamin E, in high doses, decreases platelet function without being toxic
  • Beta-carotene and vitamin E are depleted in diabetes, which enhances LDL oxidation and encourages atherosclerosis
  • Beta-carotene and vitamin E in the diet decrease oxidation in pulmonary diseases, and are hypothesized to combat oxidizing agents found in smoke

Vitamins and Disease Treatment

  • In cystic fibrosis, fat-soluble vitamins (A, D, E, and K) are inadequately absorbed, and supplementation via intravenous means may be necessary
  • Vitamins A, D, E, and K supplementation is necessary for patients with pancreatic function impairment

Phytochemicals and Cancer

  • Tocotrienols and tocopherols, found in grains, suppress the growth of diverse tumor cell lines by initiating apoptosis and arresting cell growth in the G1 phase
  • Carotenoids, found in fruits and vegetables, are antioxidants that protect against uterine, prostate, colorectal, lung, and digestive tract cancers
  • Limonoids, found in citrus fruits, inhibit phase I enzymes and induce phase II detoxification enzymes in the liver, providing protection to lung tissue

Phytochemicals and Health Benefits

  • Phytosterols, found in various plants, exhibit anti-inflammatory, anti-neoplastic, anti-pyretic, and immune-modulating activity, and decrease cholesterol levels
  • Phenolic constituents, found in various plants and whole grains, are antioxidants that lower the risk of CHD, diabetes, hypertension, and other diseases
  • Flavonoids, found in grapes, wines, and berries, act against free radicals, free radical-mediated cellular signaling, inflammation, allergies, platelet aggregation, and hepatotoxins
  • Catechin and gallic acids, found in grapes, berries, cocoa, green tea, and acacia spp., are antioxidants with free radical scavenging ability and inhibit the growth of certain bacteria

Herbal Supplements

  • Evening Primrose oil is a dietary supplement of linoleic acid, used for treating atopic eczema
  • Garlic has antibacterial, antifungal, antithrombotic, and anti-inflammatory properties
  • Ginger has carminative, antiemetic, and anti-inflammatory properties, and is used for treating dizziness
  • Ginseng is an adaptogen, enhancing humoral and cell-mediated immunity
  • Green tea is an antioxidant that reduces the risk of CVD and enhances humoral and cell-mediated immunity

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Description

This quiz covers the functions and sources of various bioactive compounds found in food, including eicosanoids, isoflavonoids, anthocyanidins, and glucosinolates. Learn about their benefits and properties.

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