Publications by authors named "Janos Petrusan"
Food wastes from agrifood industry as possible sources of proteins: A detailed molecular view on the composition of the nitrogen fraction, amino acid profile and racemisation degree of 39 food waste streams.
Barbara Prandi Andrea Faccini Francesca Lambertini Mariangela Bencivenni Montse Jorba Janos Petrusan
Food Chem
July 2019
Article Synopsis
- - The study analyzed the nitrogen content in 39 different food waste streams using various methods, including Kjeldahl and amino acid analysis, to determine their potential for protein recovery.
- - It calculated specific nitrogen-to-protein conversion factors for each waste stream, identifying those high in valuable proteins (like dairy waste and brewing by-products) as well as those low in nutritional quality.
- - This research provides the most comprehensive assessment of the nitrogen fraction in food waste to date, detailing both the potentials and limitations of using these materials as protein sources.
In the present paper, 26 food waste streams were selected according to their exploitation potential and investigated in terms of pectin content. The isolated pectin, subdivided into calcium bound and alkaline extractable pectin, was fully characterized in terms of uronic acid and other sugar composition, methylation and acetylation degree. It was shown that many waste streams can be a valuable source of pectin, but also that pectin structures present a huge structural diversity, resulting in a broad range of pectin structures.
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