Dr. Ofir Benjamin

Dr. Ofir Benjamin

Name: 
Dr. Ofir Benjamin
Position: 
Lecturer
Department: 
Food Sciences - B.Sc. Program
Phone Number: 
00-972-52-4733420

Areas of Interest

Food technology
Sensory evaluation of food
Dairy science

Short Bio

Dr. Ofir Benjamin is a lecturer and researcher at the Food science department in Tel Hai College. His field specialties deal with food sensory and the relation with different food systems (e.g., Dairy, Olive oil, postharvest fruits). Ofir completed his MSc in dairy science at Wageningen University , Netherlands. His PhD was obtained from  Otago University in New Zealand with collaboration with Fraunhofer Institute, Germany. His PhD topic was flavor release from emulsion structures under oral processing. 

In Tel Hai College, a new food sensory lab consist of advance analytical instruments such as : Electronic tongue , nose , GC-MS , GC-FID , UHPLC , Texture analayzer and viscometer. A unique dairy pilot plant has been recenetly launched with a small scale dairy and beverages processing equipment like UHT pasturization unit, high pressure homogenizer, seperator and ferementing vessels to prepare the cheeses and yogurts.     

Research

Sensory evaluation of food – characterization of volatile compounds and release behavior in food. Taste profile using the electronic tongue. Rheology and food structure -Texture analysis. Sensory profile of food using trained human panel. Postharvest impact on sensorial properties of fruits. 
Dairy science - Colloid structure of dairy products. Dairy processing, influence of the process on the sensorial properties of dairy products.  
Edible insects – Emerging topic within our research group in Tel Hai/MIGAL. Characterization of the sensorial aspects and functional ingredients of insects.   

 

Teaching

Courses coordinator:
•    Sensory evaluation of food
•    Principles of food technology b
•    Seminar for food product development
•    Food sciences seminar
•    Dairy science

 

Publications

Articles
•    Benjamin, O., Leus, M., & Everett, D. W. (2011). Static headspace analysis of volatile compounds released from β-lactoglobulin-stabilized emulsions determined by the phase ratio variation method. Food Research International, 44(1), 417-424.
•    Benjamin, O., Leus, M., Silcock, P., and Everett, D.W. (2012). Multilayer emulsions as delivery systems for controlled release of volatile compounds using pH and salt triggers Food Hydrocolloids, 27, 109-118. 
•    Benjamin, O., Lassé, M., Silcock, P., and Everett, D.W. (2012). Effect of pectin adsorption on the hydrophobic binding sites of β-lactoglobulin in solution and in emulsion systems. International Dairy Journal special issue of NIZO 7th dairy conference, 26,36-40. 
•    Benjamin, O., Silcock, P.,Kieser, J.A., Waddell, J.N., Swain, M.V., and Everett, D.W. (2012) Model mouth design with artificial tongue to analyze release of volatile compounds under pressure patterns. Innovative Food Science and Emerging Technologies, 15, 96-103. 
•    Benjamin, O., Silcock, P. and Everett, D.W. (2012) Tongue pressure and oral conditions affect volatile release from liquid systems in a model mouth. Journal of Agriculture and Food Chemistry, 60, 9918-9927. 
•    Benjamin, O., Silcock, P., Beauchamp, J., Buettner A. and Everett D.W (2013) Volatile release and structural stability of β-lactoglobulin primary and multilayer emulsions under simulated oral conditions. Food Chemistry, 140(1-2):124-34. 
•    Benjamin, O., Silcock, P., Beauchamp, J., Buettner A. and Everett D.W. (2014) Emulsifying properties of legume proteins compared to β-lactoglobulin and Tween-20 and the volatile release from oil-in-water emulsions. Journal of Food Science,79(10):2014-2022. 
•    Jones, A., Benjamin, O. Martinez, J.-J. I. (2014) Does a parasite change the nutritional value of an insect? Varroa mites on honey bees as a model. Journal of Insects as Food and Feed (accepted). 

 

Presentations

•    Salt reduction in Dairy products -     impact on sensorial quality assessed by electronic nose and tongue (Oral presentation PLEASURE conference, La Rochelle, France)

•     Comparison of Honeybee Pupae composition from healthy and parasitized brood by Varroa (Poster presentation, Edible insects conference, Ede , the Netherlands)