Q1. Resveratrol is found majorly in?

1. Mango
2. Grapes
3. Apple
4. Orange

ANSWER:  B. Grapes

• Explanation: Grapes, wine, grape juice, peanuts, cocoa, and Vaccinium species berries, such as blueberries, bilberries, and cranberries, all contain resveratrol. Only the skins of grapes contain resveratrol. The amount of resveratrol in grape skins varies depending on the grape cultivar, geographic origin, and fungal infection exposure. The amount of time a wine spends in touch with grape skin during fermentation is also a key factor in determining its resveratrol concentration.

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Q2. Which of the following statement is true for antioxidants?

1. Safety of natural antioxidants are known in most cases
2. The surfactants do not affect the partitioning properties of antioxidants
3. Polar antioxidants are more active in bulk oil systems
4. Ideal antioxidants are readily absorbed by the body

ANSWER: C. Polar antioxidants are more active in bulk oil systems

• Explanation: Natural antioxidants’ safety is frequently unknown. However, if they fall under the GRAS category, no safety assessments will be necessary before application. The chemical structure and polarity of antioxidants, as well as the types of lipid substrate, the presence of surfactants, and the phase composition, all influence their partitioning abilities. In bulk oil systems, polar antioxidants are more active. Ideal antioxidants are not absorbed by the body.

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Q3. Resveratrol is present in dietary products as _____________ forms, known as piceid.

1. Glycosylated
2. Hydroxylated
3. Carboxylated
4. None of the above

ANSWER: A. Glycosylated

• Explanation – Resveratrol has a wide range of beneficial qualities, which may be attributed to its molecular structure, which allows it to attach to a variety of biomolecules. Its anticancer, platelet anti-aggregation, and antioxidant effects, as well as its antiaging, anti-inflammatory, and anti-allergenic qualities, are all worth mentioning. In food goods, resveratrol is found in glycosylated forms known as piceid.

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Q4. Resveratrol belongs to polyphenols’ ____________, possessing two phenol rings linked to each other by an ethylene bridge.

1. Stilbenoids group
2. Lignans group
3. Flavonoids group
4. Phenolic acids

ANSWER –  A. Stilbenoids group

• Explanation: Resveratrol is a physiologically active molecule produced by plants that have been exposed to viral or ionizing radiation. Resveratrol is a stilbenoid polyphenol, meaning it has two phenol rings connected by an ethylene bridge. Resveratrol (trans-3,5,4′- trihydroxystilbene) has two isomeric forms: cis- and trans-resveratrol.

READ MORE – Food Science & Technology Quiz (08-03-2022)

Q5. The flavor and odor of cinnamon are due to _________.

1. Cinnamate
2. Cinnamyl alcohol
3. Cinnamaldehyde
4. All of the above

ANSWER: C. Cinnamaldehyde

• Explanation – Cinnamon contains essential oils as well as cinnamic acid, cinnamaldehyde, and cinnamate, among other chemicals. Cinnamaldehyde is the most important component of the essential oil, accounting for 85 percent of the total, and the purity of cinnamaldehyde in usage is high (> 98 percent). Cinnamaldehyde is the aldehyde responsible for the flavor and odor of cinnamon. Cinnamaldehyde is found in the bark of cinnamon trees and other Cinnamomum species such as camphor and cassia.

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