Q. What is extraction in paprika used for?

View solution

Q. Statement 1: Caffeine is the active principle in coffee. It cannot be stripped off it.
Statement 2: Caffeine can be stripped off coffee by extraction.

View solution

Q. Using hot water for decoction followed by spraying drying is the procedure used for making instant coffee.

View solution

Q. Statement 1: Presence of certain organic solvents in solvent extraction can prove to be carcinogenic.
Statement 2: CO₂ gas can be used in super critical fluid extraction.

View solution

Q. Which of the following is a major constraint of SCFE?

View solution

Q. Which of the following is the real extraction application of SCFE?

View solution

Q. Which of the following is the actual reason why CO₂ is used in CSFE?

View solution

Q. Celinium Sulphate is an exception of the solubility curve. When the temperature is increased, its solubility decreases.

View solution

Q. Which of the following is NOT an important criteria for crystal formation?

View solution

Q. Statement 1: The solubility of NaCl increases with the increase in temperature.
Statement 2: Crystal formation is hindered by nucleation taking place on the crystal surface.

View solution

Q. Statement 1: Solid food items containing water molecules are more soluble as the temperature increases.
Statement 2: This growth takes place in steps.

View solution

Q. Which of the following tells the significance of crystallization in food processing?

View solution

Q. Statement 1: Crystallization is both a mass and heat transfer operation.
Statement 2: The crystals and mother liquor obtained from a crystallizer are called _____

View solution

Q. Statement 1: Smaller particles dissolve as they have a larger surface area and larger particles grow.
Statement 2: The above process is called Ostwald ripening.

View solution

Q. The ratio of concentration of a super saturated solution to a saturated solution is denoted by α’ which is stated by the Kelvin equation. How is it related to the crystal size and interfacial tension between solid and liquid?

View solution

Q. Parameters affecting crystallization are ____________

View solution

Q. Which of the following facilitates crystallization?

View solution

Q. Statement 1: Batch crystallizers are used if the throughput is high.
Statement 2: The operating cost of batch crystallizers is high.

View solution

Q. Statement 1: Batch crystallizers use the concept of cooling of hot solution/magma.
Statement 2: Control of particle size is poor in a batch crystallizer.

View solution

Q. Statement 1: Batch crystallizers are used for jaggery.
Statement 2: Particle size is controlled by stirring and scraping the concentrate from the vessel for better heat transfer.

View solution