Non-Conventional Data Extraction Techniques I
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Questions and Answers

What is the primary objective of the separation process in a sample?

  • To increase the temperature and pressure of the sample
  • To separate solutes from active sites of the sample matrix (correct)
  • To facilitate the diffusion of solvent across the sample matrix
  • To combine the solutes with the active sites of the sample matrix

What is the outcome of increasing temperature and pressure in the sample matrix?

  • Faster separation of solutes from active sites (correct)
  • Slower diffusion of solvent across the sample matrix
  • No significant effect on the sample matrix
  • Combination of solutes with active sites

What is the primary role of the solvent in the sample matrix?

  • To combine the solutes with active sites
  • To diffuse across the sample matrix (correct)
  • To facilitate the separation of solutes from active sites
  • To increase the temperature and pressure of the sample

What is the consequence of diffusion of solvent across the sample matrix?

<p>Separation of solutes from active sites (B)</p> Signup and view all the answers

What is the significance of active sites in the sample matrix?

<p>They are the sites where solutes interact with the sample matrix (C)</p> Signup and view all the answers

What is an advantage of the separation process in terms of heating?

<p>It provides quicker heating for the extraction of bioactive substances (D)</p> Signup and view all the answers

What is a benefit of reduced thermal gradients in the separation process?

<p>It provides a more stable environment for extraction (C)</p> Signup and view all the answers

What is a consequence of reduced equipment size in the separation process?

<p>It makes the equipment more portable and convenient (C)</p> Signup and view all the answers

What is the relationship between the separation process and the extraction of bioactive substances?

<p>The separation process enhances the extraction of bioactive substances (A)</p> Signup and view all the answers

What can be inferred about the extraction of bioactive substances from plant materials?

<p>It can be facilitated by quicker heating and reduced thermal gradients (A)</p> Signup and view all the answers

What is an advantage of using MAE compared to conventional extraction methods?

<p>It can extract bioactive compounds more rapidly and with better recovery (B)</p> Signup and view all the answers

What is the result of using MAE for bioactive compound extraction?

<p>Increased extract yield (D)</p> Signup and view all the answers

How does MAE compare to conventional extraction processes in terms of extraction rate?

<p>It is faster (B)</p> Signup and view all the answers

What is the effect of MAE on the recovery of bioactive compounds?

<p>It improves recovery (C)</p> Signup and view all the answers

What is the benefit of using MAE for bioactive compound extraction?

<p>It increases the speed and efficiency of extraction (B)</p> Signup and view all the answers

What is the duration of the MAE technique used to extract ginsenosides from ginseng root?

<p>15 minutes (C)</p> Signup and view all the answers

How does the extraction yield of ginsenosides using MAE compare to conventional solvent extraction?

<p>It is better (D)</p> Signup and view all the answers

What is the duration of conventional solvent extraction used to extract ginsenosides from ginseng root?

<p>10 hours (D)</p> Signup and view all the answers

What is the type of compound extracted from ginseng root using MAE technique?

<p>Ginsenosides (A)</p> Signup and view all the answers

What is the advantage of using MAE technique for ginsenosides extraction?

<p>It offers a faster extraction time (B)</p> Signup and view all the answers

What is the comparison of MAE's extraction yield with other extraction methods?

<p>MAE has a higher extraction yield than other methods at room temperature for 20 h (A)</p> Signup and view all the answers

What is the time required for MAE to achieve a higher extraction yield?

<p>4 min (B)</p> Signup and view all the answers

What is the advantage of using MAE for polyphenols and caffeine extraction from green tea leaves?

<p>It achieves a higher extraction yield (D)</p> Signup and view all the answers

What is the comparison of MAE's extraction time with other methods?

<p>MAE takes a shorter time than other methods (C)</p> Signup and view all the answers

What is the type of compounds extracted from green tea leaves using MAE?

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

What is the primary mechanism of heating in microwave-based extraction?

<p>Dipole rotation and ionic conduction (A)</p> Signup and view all the answers

What is the outcome of the resistance of the medium to flow ions in the ionic conduction mechanism?

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

What is the role of electromagnetic energy in microwave-based extraction?

<p>It converts to heat through ionic conduction and dipole rotation (D)</p> Signup and view all the answers

What is the fundamental principle of microwave heating in extraction techniques?

<p>Direct interaction with polar materials (A)</p> Signup and view all the answers

What is the outcome of dipole rotation in the microwave heating mechanism?

<p>Heat generation (A)</p> Signup and view all the answers

What is the role of ionic conduction in microwave-based extraction?

<p>It generates heat (A)</p> Signup and view all the answers

What is the basis of microwave heating in non-conventional extraction techniques?

<p>Direct interaction with polar materials (C)</p> Signup and view all the answers

What is the primary mechanism of heat generation in microwave-based extraction?

<p>Ionic conduction and dipole rotation (B)</p> Signup and view all the answers

What is the primary function of enzymes like cellulase, a-amylase, and pectinase in non-conventional extraction techniques?

<p>To break the cell wall and hydrolyze structural polysaccharides and lipid bodies (D)</p> Signup and view all the answers

What is the underlying principle of the two approaches for enzyme-assisted extraction?

<p>Cell wall disruption (A)</p> Signup and view all the answers

What is the consequence of not adding specific enzymes like cellulase, a-amylase, and pectinase during extraction?

<p>Reduced recovery of bioactive compounds (B)</p> Signup and view all the answers

What is the primary advantage of using enzymes like cellulase, a-amylase, and pectinase in extraction?

<p>Enhanced recovery of bioactive compounds (D)</p> Signup and view all the answers

What is the role of structural polysaccharides and lipid bodies in non-conventional extraction techniques?

<p>They are hydrolyzed by enzymes like cellulase, a-amylase, and pectinase (D)</p> Signup and view all the answers

What is the primary objective of adding enzymes like cellulase, a-amylase, and pectinase during extraction?

<p>To enhance recovery of bioactive compounds (C)</p> Signup and view all the answers

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