Dr Julien Lonchamp, (a Lecturer in Biochemistry with Food Sciences)  was  awarded an Innovation Fellowship in 2018/19 to Develop a novel vegan texturing ingredient for palm oil replacement in selected bakery applications with Catriona Liddle at the Scottish Centre for Food Development and Innovation. In 2020/21, they were awarded an Innovation Fellowship to Screen an underexploited soy industry co-product as novel food ingredient. In 2021/2022 they were successful in securing further innovation funding to carry out a pilot study on mycoprotein as novel fat reduction strategy for the food industry

Screening of an underexploited soy industry co-product as novel food ingredient

Dr Julien Lonchamp and Catriona Liddle  were granted a QMU Innovation Fellowship to assess the feasibility of developing SSSR (Soy Sauce Squeezing Residue), an underexploited co-product of soy sauce production, as a novel ingredient for the food industry.

Soy sauce manufacturing produces 110,000 tonnes of this co-product worldwide every year following mechanical pressing of fermented soybeans to extract the liquid. Due to its specific sensory profile, high salt content and residual oil content, unprocessed SSSR is currently a low-value stream sold as animal feed, fertiliser, soil conditioner and papermaking material.

The project will assess the feasibility of a number of SSSR processing methods and the suitability of processed SSSR in a range of food applications with potential health benefits.

Developing a novel vegan texturing ingredient for palm oil replacement in selected bakery applications

Palm Oil has become the main fat-based texturizer across the food industry because of its unique lipid composition which allows it to be solid at room temperature, and because of its low production costs. The devastating impact of palm cultivation on the environment has been well documented and the industry is looking for sustainable alternatives. However, so far, no suitable replacer has been found to mimic the outstanding functional properties of palm oil.

As part of this project, Dr Lonchamp and his colleague, Catriona Liddle, optimised the composition and processing of a novel palm fat replacement ingredient mix in a standard cake recipe which displayed a comparable overall sensory profile to a palm fat formulation. 

"The Innovation Fellowship allowed us to further develop the formulation of a prototype of novel palm fat replacement, to assess its processing on a larger scale using the SCFDI high-pressure homogeniser and to test its properties in a standard cake recipe."
Dr Julien Lonchamp

Dr Lonchamp and Catriona Liddle are currently using the results of this study to develop a research proposal aimed at developing novel sustainable palm- and fat-free applications and to build a collaborative industry-academic consortium to secure further funding. 

 

Pilot study on mycoprotein as novel fat reduction strategy for the food industry

This proposal aims to carry out a pilot study assessing a novel sustainable strategy for reducing fat in emulsion-based food products while maintaining their creaminess and satiating properties. The project will assess mycoprotein as the first potential vegan fat replacer of fungal origin.

A previous study published by Julien Lonchamp in collaboration with Quorn Foods and Heriot-Watt University highlighted the potential of small mycoprotein fragments obtained by ultrasound processing to reduce the size of oil droplets in food emulsions. (https://eresearch.qmu.ac.uk/handle/20.500.12289/10460). 

Such reduction in oil droplet size has previously been shown in the literature to increase creaminess and satiety, allowing to lowering the fat content while maintaining the sensory properties. However this strategy currently relies on unsustainable emulsifiers (palm fat glycerides or animal-based proteins).

In this context the development of mycoprotein as a sustainable vegan fat replacer is a potential opportunity to boost the reduced-fat sector with a view to addressing the dramatic rise of obesity, cardiovascular disease and type-2 diabetes.

This pilot study aims to screen a range of size-reduction processes, with the resulting mycoprotein fragments characterised for their oil-lowering properties in a novel range of products.