2025

• Khan, Muhammad Umar; Hamid, Khalid; Tolstorebrov, Ignat; Rustad, Turid; Eikevik, Trygve Magne; Watanabe, Manabu. (2025) Evaluation of Atlantic cod hydrolysate properties in innovative freeze concentration techniques. Food chemistry: X.
  Academic article
• Khan, Muhammad Umar; Mastani Joybari, Mahmood; Hamid, Khalid; Tolstorebrov, Ignat; Javed, Aqib; Hafner, Armin. (2025) Multi-stage freeze concentration of fish protein hydrolysates: A CFD–experimental approach addressing viscosity and freezing point challenges. Results in Engineering (RINENG)
  Academic article

2024

• Khan, Muhammad Umar; Hamid, Khalid; Tolstorebrov, Ignat; Eikevik, Trygve Magne. (2024) A comprehensive investigation of the use of freeze concentration approaches for the concentration of fish protein hydrolysates. Food Chemistry
  Academic article
• Khan, Muhammad Umar; Tolstorebrov, Ignat; Eikevik, Trygve Magne; Watanabe, Manabu; Gaceus, Livius. (2024) Physicochemical and rheological properties of COD hydrolysates. International Institute of Refrigeration
  Academic chapter/article/Conference paper
• Khan, Muhammad Umar; Tolstorebrov, Ignat; Eikevik, Trygve Magne; Watanabe, Manabu; Gaceus, Livius. (2024) Survey of freeze concentration methods for the concentration of fish protein hydrolysates. International Institute of Refrigeration
  Academic chapter/article/Conference paper

2023

• Widell, Kristina Marianne Norne; Gabrielii, Cecilia H; Söylemez, Engin; Hazarika, Mihir Mouchum; Hafner, Armin; Khan, Muhammad Umar. (2023) Energy efficient and climate friendly refrigeration systems onboard fishing vessels. International Institute of Refrigeration
  Academic chapter/article/Conference paper

2022

• Khan, Muhammad Umar; Hafner, Armin. (2022) Design and analysis of freeze concentrator for processing of fish protein hydrolysates. NTNU
  Masters thesis
• Khan, Muhammad Umar; Tolstorebrov, Ignat; Widell, Kristina Norne; Hafner, Armin; Nordtvedt, Tom Ståle. (2022) Modelling of Crystallization During Freeze-Concentration of Hydrolysates. International Institute of Refrigeration
  Academic chapter/article/Conference paper