Card 181
Question
What does the acronym associated w/food analysis techniques 'FTIR' stand for?
Answer
Fourier Transform Infared Spectroscopy
Food analysis
Discover Food analysis: 381 flashcards with questions and answers.
- Subject
- Sciences / Chemistry
- Language of creation
- English
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Cards in this set
Card 182
Question
What type of compounds is flame photometric detector (FPD) specific for?
Answer
FPD is specific to compounds containing sulfur and phosphorous compounds
Card 183
Question
What does the Ninhydrin assay measure?
Answer
Free amino acids and amines
Card 184
Question
What instrument is used for specific volatile aroma compounds quantitation?
Answer
Gas chromatograph
Card 185
Question
What does GC stand for?
Answer
Gas Chromatography
Card 186
Question
What analytical technique separates compounds based on volatility and interaction with a stationary phase?
Answer
Gas chromatography
Card 187
Question
What chromatographic technique is commonly used to analyze fatty acid methyl esters (FAMEs)?
Answer
Gas chromatography (GC)
Card 188
Question
Which chromatographic technique is most commonly used to quantify volatile flavor compounds?
Answer
Gas chromatography (GC), often GC-MS.
Card 189
Question
What does GC-MS stand for?
Answer
Gas Chromatography-Mass Spectrometry
Card 190
Question
Name two situations in which a chemist is confronted with theoretical plates.
Answer
Gas chromatography, liquid chromatography, and distillation.
Card 191
Question
Which chromatography technique separates compounds based on volatility?
Answer
Gas chromatography.
Card 192
Question
What is another name for gas chromatography?
Answer
Gas-liquid partition chromatography (GLPC), vapor-phase chromatography (VPC)
Card 193
Question
What does GPC stand for wrt food analysis?
Answer
Gel Permeation Chromatography
Card 194
Question
Name three gelling food proteins.
Answer
Gelatin, egg white, whey proteins, soy protein, casein, myofibrilar proteins
Card 195
Question
Name 2 wet methods for determination of fat content in milk.
Answer
Gerber and Babcock
Card 196
Question
What analytical method is commonly used to determine moisture content by weight loss on drying?
Answer
Gravimetric oven drying
Card 197
Question
In Reverse phase HPLC, what component retains highly hydrophobic impurities from going onto the analytical column and permanently interacting with the stationary phase which ultimately prolongs the analytical column's capacity?
Answer
Guard column
Card 198
Question
Balancing cost speed and ease of use, which rapid quality control for syrup measuerment was used by industry?
Answer
Handheld refractometer
Card 199
Question
What does HETP stand for in column design?
Answer
Height equivalent to a theoretical plate
Card 200
Question
What does HPLC stand for?
Answer
High Performance Liquid Chromatography
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