Q1. ______ is another chemical that is formed by chemical reactions between some sugar like asparagine at a high temperature usually above 120⁰C.

1. Acrylamide
2. Transfat
3. Glycidol
4. None of the above

ANSWER: A. Acrylamide

• Explanation – Acrylamide is a chemical that is generated when a sugar, such as asparagine, reacts with another molecule at a high temperature.  Acrylamides are usually formed above 120 ⁰C. This acrylamide is generated when foods containing reducing sugar are processed or cooked. And if it’s processed at a lower temperature, food safety may be a concern, as well as a quality risk. As a result, it appears that there is no straightforward remedy. A substantial amount of acrylamide can be found in fried potato chips, toasted bread, baked pastries, coffee, roasted coffee, and cocoa products.

READ MORE – Food Science & Technology Quiz (06-02-2022)

Q2. _____ is defined as a heterogeneous assemblage of organisms that range in size from tiny cells to giant seaweeds.

1. Algae
2. Diatoms
3. Protozoa
4. Spirulina

ANSWER: A. Algae

• Explanation: Algae is a diverse assortment of organisms ranging in size from single cells to massive seaweeds. Algae are photosynthetic eukaryotes and prokaryotes that exist in watery settings and include cyanobacteria, blue-green algae, and others. Researchers are looking for alternative food sources that are easy to farm, cost-effective, and produce high amounts of bioactive substances that are important for preventing major health disorders to fulfill the nutritional needs of growing populations.

READ MORE – Food Science & Technology Quiz (16-02-2022)

Q3.  _______ has a good amount of beta carotene.

1. Dunaliella
2. Spirulina
3. Haematococcus
4. Porphyra

ANSWER:  A. Dunaliella

• Explanation – Algae is presently being exploited as a source of biochemicals in a variety of applications, including Spirulina includes phycocyanin, chlorophyll, and beta carotene, and Haematococcus is a good source of astaxanthin; Chlorella has lutein, chlorophyll, and beta carotene; Porphyra contains phycoerythrin and chlorophyll, among other things. As a result, numerous bioactive chemicals can be found in different algae species.

READ MORE – Food Science & Technology Quiz (26-02-2022)

Q4. __________ can be used for extraction of phycoerythrin.

1. Phosphate buffer
2. Sodium phosphate
3. Sodium chloride
4. All of the above

ANSWER – D. All of the above

• Explanation: Phycoerythrin can be extracted using phosphate buffer, sodium phosphate, or sodium chloride solutions, among other things. Because of the solubility of chlorophyll, organic solvents such as chloroform, methanol, or acetone can be employed for extraction. Ethanol, ethyl acetate, or acetone can be used to solubilize or extract astaxanthin. Similarly, acetone and hexane can be used to extract lutein, zeaxanthin, and β-carotene.

READ MORE – Food Science & Technology Quiz (06-01-2022)

Q5. Spirulina has been given GRAS status for its use as an ingredient in food at a small level of _______ per serving.

1. 2.5 to 4 g
2. 0.5 to 3 g
3. 4 to 6 g
4. 6.5 to 8 g

ANSWER: B. 0.5 to 3 g

• Explanation: Some of the food products developed in the FCTL Lab using these extracted bioactive as well as other biomass are listed below, for example, RTS Spirulina beverage. Spirulina has been accorded GRAS status for use as a food ingredient at a low level of 0.5 to 3 g per serving in the form of whole Spirulina powder, tablet, and other forms that are available on the market.

READ MORE – Food Science & Technology Quiz (05-03-2022)

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