Podcast
Questions and Answers
What is the primary product of lipid oxidation that is believed to contribute to the formation of a chromogen in the thiobarbituric acid test?
What is the primary product of lipid oxidation that is believed to contribute to the formation of a chromogen in the thiobarbituric acid test?
- Ketone
- Malonaldehyde (correct)
- Hydroperoxide
- Aldehyde
At what wavelength is the chromogen produced in the thiobarbituric acid test typically measured?
At what wavelength is the chromogen produced in the thiobarbituric acid test typically measured?
- 350 nm
- 450 nm (correct)
- 650 nm
- 750 nm
What type of spectroscopy is used to detect short-lived free radicals in rancid oils and fats?
What type of spectroscopy is used to detect short-lived free radicals in rancid oils and fats?
- Nuclear Magnetic Resonance (NMR) Spectroscopy
- Infrared Spectroscopy
- Ultraviolet-Visible (UV-Vis) Spectroscopy
- Electron Spin Resonance (ESR) Spectroscopy (correct)
What is the minimum concentration of free radicals required for detection using ESR Spectroscopy?
What is the minimum concentration of free radicals required for detection using ESR Spectroscopy?
What is the wavelength at which hydroperoxides absorb in IR Spectroscopy?
What is the wavelength at which hydroperoxides absorb in IR Spectroscopy?
What is the advantage of IR Spectroscopy in the study of lipid oxidation?
What is the advantage of IR Spectroscopy in the study of lipid oxidation?
What is the product of lipid oxidation that is indicated by the absorption band at 5.72 µm in IR Spectroscopy?
What is the product of lipid oxidation that is indicated by the absorption band at 5.72 µm in IR Spectroscopy?
Why does the absorption band at 2.93 µm in IR Spectroscopy eventually disappear?
Why does the absorption band at 2.93 µm in IR Spectroscopy eventually disappear?
What is the role of thiobarbituric acid in the detection of lipid oxidation?
What is the role of thiobarbituric acid in the detection of lipid oxidation?
Which spectroscopy technique is used to detect unusual functional groups in fatty acids?
Which spectroscopy technique is used to detect unusual functional groups in fatty acids?
Flashcards are hidden until you start studying
