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Short Description: 

Colorimetric Sweet Onion Test Kit for the determination of pyruvic acid as an indicator of pungency in onions.

The FSES Sweet Onion Test Kit and refill kits can be purchased from the Oregon State University Marketplace here. We accept Visa and MasterCard. 

The kit includes the following supplies; enough for 30 tests:

  • 30 Marked square Cuvettes with caps
  • Handheld Press
  • Sample Cups
  • Pipet
  • 30 Pipet tips
  • Color chart
  • 30mL Distilled water
  • 30mL DNPH solution (2,4-Dinitrophenylhydrazine)
  • 30mL NaOH solution (Sodium hydroxide)
  • Safety Data Sheets for DNPH and NaOH
  • Instructional sheet

Not included: knife and cutting surface
 
The refill kit includes the following supplies; enough for 30 tests:

  • 30 Marked square Cuvettes with caps
  • Sample Cups
  • 30 Pipet tips
  • 30mL Distilled water
  • 30mL DNPH solution (2,4-Dinitrophenylhydrazine)
  • 30mL NaOH solution (Sodium hydroxide)
  • Safety Data Sheets for DNPH and NaOH

Please direct all pre-sales inquires to FSESLab@oregonstate.edu. For post-sales inquires, call 541-737-1781 for immediate assistance.