Off-flavour determination in plant-based milk alternatives (PBMAs) with enhanced protein content

Recruitment open March 2024

Aim of study

To establish a concentration for various plant-protein isolate which indicates an acceptable level of undesirable flavours as perceived by a consumer quality panel.



Why are we researching this?

As consumer preferences shift towards healthier and sustainable dietary choices, PBMAs have gained popularity. However, challenges related to poor nutritional composition especially low protein content, and off-flavour development remain. The addition of protein isolates can in-crease the protein content, however, significantly influence the flavour and overall sensory experience of PBMAs. The main objective is to determine the concentration levels at which these proteins become a factor leading to consumer rejection due to flavour attributes.

Eligibility and exclusion criteria

  • Age between 18-65 years
  • Lives in Melbourne, Australia
  • Have no smell or taste impairments
  • No known food allergies or intolerances
  • Consumers of plant-based milk are preferred


Key points for participants

  • Participants must be screened for high sensory acuity.
  • Individuals exhibiting heightened sensory acuity will be invited to join the trained panel. Panel members will receive training on product-related attributes, utilising a common language and references to conduct evaluations objectively.

Contact details

Bharti Sharma
PhD candidate


Ethics reference number
HEAG-H 159 2023