Research project
36 | monthsDESPHAGIA

Design of innovative soft solid foods intended for dysphagia diets

Related toSpoke 04

Principal investigators
Laura Piazza,Daniela Martini

Other partecipantsFrancesca Girotto
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Project partners

Task involved

Task 4.1.1.

Reformulation or improvement of relevant food products in the national context in order to: a) implement the nutritional characteristics also by reducing antinutrients or using bioprocessed ingredients (from raw products to ingredients) and limit the use of undesirable components (e.g. by using bioactives) along the food system b) improve food formulation and composition based on consumer perception and needs identified for specific target groups (in connection with Spoke 5 and 6) c) promote clear and ad hoc labelling as an information tool (in connection with Spoke 1 and 7) to increase the willingness to buy improved foods d) guarantee safety and affordability of new products (in connection with Spoke 1 and 3).

Task 4.4.1.

Prototyping of new sustainable and healthy products to meet consumer needs in terms of nutritional and functional targets, but also sensory characteristics and convenience, thus increasing adoption in the long term by promoting exploitation of the previous implemented approaches (see WP4.1, WP4.2) to develop new pilot food products (food design) also in connection with start-up acceleration programmes (activities are also in connection with Spoke 3).

Project deliverables

D4.1.1.1.

Selection of raw materials/ingredients with improved nutritional characteristics and limited undesirable components (M12)

D4.1.1.2.

Development or implementation of at least two reformulated food products for each food category relevant for the impact on general and at-risk groups (M36)

D4.1.1.3.

Pilot application of at least two new food labels promoting health and sustainability to increase the adherence to a healthy dietary pattern and encouraging producers to make healthier and more sustainable food products (M24)

D4.4.1.1.

Scouting and evaluation of existing prototypes of sustainable and healthy products (M12)

D4.4.1.2.

Quality by design: innovation in food design concept to be applied to different benchmark products (n=4 prototypes) (M24)

D4.4.1.3.

Development and application of improved procedures for the assessment of food palatability to meet consumer needs (n= 6 products) (M24)

Interaction with other spokes

State of the art

Dysphagia is defined as a difficulty in swallowing, characterized by impaired movement or obstruction, anywhere from the mouth to the stomach. Dysphagia has an important contributor to pressure on healthcare systems. The number of dysphagia patients is likely to increase rapidly, which is projected to stably expand the market size of pre-made high energy-density and texture-modified food (TMDs) and thickened fluids (TFs) that make eating easier and swallowing safer and that are consumed at hospitals, long-term care facilities and by people staying at home.

Despite the increase in industrial TMDs, there has been a paucity of studies investigating the effect of the texture modification, and the intense taste have on oral intake and nutrition density. Designing and offering new TMDs and TFs, which are created according to sustainable criteria and sensory-appreciated properties to maximize eating experience and nutrition intake, would be beneficial for patients with dysphagia. 

Operation plan

Upcycled-protein-rich unrefined ingredients from vegetable manufacturing process will be selected in a perspective of formulation of soft solid foods that are optimized through the International Dysphagia Diet Standardization Initiative (IDDSI) range of textures. Dynamic formulation activity is envisaged because of feedbacks from nutritional evaluations and administrations to dysphagia patients.

The research will involve different activities as reported below:

  • Idea generation, products specifications, technological feasibility study;
  • By-products fractionation; chemical, nutritional characterization;
  • Rheology and tribology studies;
  • Formulation of new soft solid foods and jelly-like beverages for replenishing water, pilot scale manufacturing and product testing;
  • In vivo testing of the new products with clinical, fibroscopic and logopedic evaluations. 

Expected results

  • Soft solid food products intended to improve the care of the swallowing dysfunction. Through a quality by design approach, material science principles will be transferred to make better patients’ life. In particular, the emerging instrumental methods (rheology, tribology, fibroscopy) coupled with nutrition, logopedic and clinical evaluations are brought into play in order to understand the swallowing process and can be crucial in the development of food for dysphagia patients.
  • Upcycling of vegetable food losses;
  • General guidance for industrial manufacturers for special foods according to circular economy criteria;
  • Improvement in research for pathological swallowing difficulties; 
  • Development and submission of recommendations for standards and guidelines for dysphagia food standards;
  • Communication towards regulatory institutions, media and the public with current and reliable information on the opening of circular economy strategy to medical issues.