BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CERN//INDICO//EN
BEGIN:VEVENT
SUMMARY:Towards a Zero-Waste Duckweed Biorefinery: Pulse Electric Field an
 d High-Pressure Assisted Fractionation for Enhanced Recovery of Functional
  Ingredients
DTSTART;VALUE=DATE-TIME:20260929T155500Z
DTEND;VALUE=DATE-TIME:20260929T161500Z
DTSTAMP;VALUE=DATE-TIME:20260916T130420Z
UID:indico-contribution-2944@cern.ch
DESCRIPTION:Speakers: Anim Ujong (Technological University Dublin and Teag
 asc Food Research Centre)\nDuckweed is a sustainable aquatic biomass with 
 potential for biorefinery applications owing to its rapid growth and rich 
 proteins\, starch composition\, and bioactive compounds. However\, convent
 ional processing methods often fail to efficiently fractionate its compone
 nts\, limiting biomass valorization. This study investigated aqueous fract
 ionation assisted by pulsed electric field (PEF) and high-pressure process
 ing (HPP) as non-thermal pretreatments to enhance the recovery of function
 al duckweed ingredients. PEF was applied at 12 and 24 kV (9 µs\; 5 or 10 
 treatment cycles) or HPP at 200\, 400\, and 600 MPa for 5 min\, followed b
 y centrifugation and fractionation into (i) an aqueous extract rich in phe
 nolic compounds\, minerals\, and soluble proteins and (ii) a solid fractio
 n enriched in starch\, dietary fiber\, and residual proteins. Protein solu
 bilization increased with HPP pressure (27.91–28.44%) and PEF electric f
 ield strength (26.10–27.80%)\, while additional PEF cycles had minimal e
 ffects. Starch enrichment in the pellet increased with higher treatment in
 tensity (4.50-5.32%)\, whereas phenolic recovery was enhanced by PEF\, rea
 ching 13.8 µmol/g at 24 kV-10 cycles\, and by HPP\, with the highest reco
 very at 200 MPa (18.52 µmol/g). Functional characterization showed superi
 or foaming capacity in aqueous extracts\, reaching 236% after HPP (400 MPa
 ) and 345% after PEF (12 kV-10 cycles)\, while pellet fractions exhibited 
 greater water-holding and fat-binding capacities. Thermal analysis and FTI
 R indicated structural modifications and molecular rearrangement without s
 ignificant chemical degradation. Overall\, HPP- and PEF-assisted aqueous f
 ractionation represents a promising approach for duckweed valorization and
  the the sustainable production of multifunctional food and biobased ingre
 dients.\n\nhttps://indico.unina.it/event/117/contributions/2944/
LOCATION: Sala Monumentini
URL:https://indico.unina.it/event/117/contributions/2944/
END:VEVENT
END:VCALENDAR