Decagon Devices, Inc.

AquaSorp Isotherm Generator


The Aquasorp IG brings click and read efficiency to soil isotherms. In 24 to 48 hours, Aquasorp generates ip to 200 points ( range -5 to -500 MPa) to create a soil moisture release curve (water potential vs. water content). The aquasorp creates both a wetting and drying curve to identify any potential hysteresis in a soil. Whether you are studying adsorption/desorption characteristics or characterizing soil expansion, the Aquasorp will provide the information you need with a fraction of the time and effort.

Until now, you could expect to pay around $100,000 for an isotherm generator (or take 2-5 weeks to create a single isotherm by hand). Using the Dynamic Dewpoint Isotherm method (DDI), AquaSorp produces highly accurate adsorption and desorption isotherm curves in 24 hours or less − at a cost that researchers and formulators can afford.

A moisture sorption isotherm answers the following questions:

  • I've added a lot of water to the dough without changing the water activity level. Now I get a sudden jump. Why?
  • What conditions will lead to recrystalization?
  • What′s the recipe for maximum shelf life?
  • How will a recipe change affect the water activity of the product?
  • Can I use a model to estimate water activity of various different recipes?
  • Does this ingredient have the buffering capacity to maintain its water activity in a high humidity environment?

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