Research project
36 | monthsDIFOSTER

Development of innovative foods through encapsulation and fermentation technologies

Related toSpoke 04

Principal investigators
Emma Chiavaro

Other partecipantsOttavia Parenti, Neamtallah Assaf, Marcello Alinovi, Maria Paciulli, Elena Bancalari
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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).

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)

D4.1.1.4.

Definition of quality indicators and sensory properties to be included in the label to standardise authenticity and quality (M30)

State of the art

In recent years, the demand for functional foods has increased significantly due to a risen consumers’ awareness in health and nutritional related characteristics. In particular, the bakery and pasta sectors have received a large request for products delivering health benefits and/or specifically designed for particular groups of consumers (e.g. celiac, diabetic, etc.). To be accepted and have success on the market, the new products have to be designed and prototyped also by considering the technological performances and the final sensory quality. 
Bioactives microencapsulation and legume flour fermentation by Lactic Acid Bacteria (LAB) can be mentioned as two promising strategies to deliver and improve the nutritional and technological functionality of cereal-based products. Improved shelf-lives, enhanced antioxidant activity, reduction of antinutrient compounds, better structural and sensory properties can be obtained by applying these technologies.

Operation plan

The application of i) encapsulated bioactives and ii) LAB fermentation, to improve the technological, nutritional quality of cereal-based foods (e.g. pasta, bread, snacks with/without gluten), will be performed.

  • Bioactives will be extracted from selected vegetable by-products (e.g. olive, coffee) by pulsed electric fields (PEF). To protect those molecules from external agents, they will be encapsulated in food grade polymers by different techniques (e.g. emulsification internal gelation). After a techno-functional characterization, these ingredients will be used to enrich the prototypes.
  • LAB strains selected by the UNIPR Microbiology team, will be employed to functionalize different legume flours (e.g. chickpeas). Based on selected techno-functional characteristics, the fermented doughs will be employed to develop the prototypes.

In both cases, the prototypes will be assessed for sensory, physicochemical, nutritional properties in collaboration with the UNIPR nutrition unit.

Expected results

  • Prototypes enriched with encapsulated bioactives will be developed and optimized; improved nutritional quality (e.g. enhanced bio-accessibility) and shelf life stability (e.g. reduction of oxidation) would be expected, without altering the prototypes sensory properties and avoiding the use of synthetic additives. 
  • Prototypes enriched with LAB fermented legumes will be developed and optimized; an improvement in the sensory (e.g. reduction of legume flavor), nutritional profile (e.g. antioxidant activity, development of LAB produced functional molecules) and technological functionality (e.g. better structural, rheological properties of both ingredients and prototypes) would be expected.

In addition, the results would be useful to increase the current level of knowledge related to these technological approaches and to their utilization in food design. These results would be also the starting point for the potential scale up of the products at industrial level.