Quiz on Food Analysis & Instrumentation

What is the principle behind the Kjeldahl Method?

• It measures protein content based on nitrogen estimation.

• It employs dye-binding techniques for protein quantification.

• It uses infrared spectroscopy to analyze proteins.

• It involves gas chromatography for fat analysis.

Which method is known for nitrogen combustion in protein analysis?

• Dumas Method

• Biuret Method

• Kjeldahl Method

• Bradford Dye-Binding Method

What is the main application of Infrared Spectroscopy in food analysis?

• To determine protein content.

• To evaluate the quality of milk powders.

• To analyze fat content.

• To assess moisture levels.

Which method is used for protein analysis that involves a color change?

• Soxhlet Method

• Kjeldahl Method

• Dumas Method

• Lowry Method

What is the primary focus of the Biuret Method?

• Vitamin content analysis.

• Carbohydrate content analysis.

• Protein content analysis.

• Fat content analysis.

Which method is associated with solvent extraction for fat analysis?

• Goldfish Method

• Bradford Dye-Binding Method

• Dumas Method

• Infrared Spectroscopy

What is the purpose of the Soxhlet Method?

• To extract fat from food samples.

• To determine carbohydrate levels.

• To analyze protein content.

• To measure moisture content.

Which method uses UV absorption at 280 nm?

• Bradford Dye-Binding Method

• Kjeldahl Method

• Dumas Method

• Lowry Method

What is a key consideration in crude fat analysis methods?

• Nitrogen estimation.

• Color change detection.

• Temperature control.

• Protein binding.

Which method is NOT a solvent extraction method?

• Gas Chromatography

• Soxhlet Method

• Mojonnier Method

• Goldfish Method