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SUMMARY:Sustainable Commercialization of Duckweed Production in Malaysia
DTSTART;VALUE=DATE-TIME:20261002T080500Z
DTEND;VALUE=DATE-TIME:20261002T082500Z
DTSTAMP;VALUE=DATE-TIME:20260915T180329Z
UID:indico-contribution-2952@cern.ch
DESCRIPTION:Speakers: Derek Juinn Chieh Chan (Universiti Sains Malaysia)\n
 Duckweed is a sustainable biomass resource capable of high-value protein p
 roduction\, carbon sequestration\, nutrient recovery\, and water purificat
 ion. This study evaluated the feasibility of commercial-scale duckweed pro
 duction in Malaysia through pilot-scale cultivation\, sequential nutrient 
 optimization\, drying process development\, and life cycle assessment (LCA
 ). A two-stage sequential media strategy was employed to optimize biomass 
 growth and nutrient accumulation independently. Pilot-scale cultivation su
 ccessfully reproduced laboratory-scale performance\, demonstrating scalabi
 lity while maintaining species-specific characteristics. *Lemna minor* ach
 ieved the highest relative growth rate (0.227 day⁻¹) with 36.8% protein
  (dry weight)\, whereas *Spirodela polyrhiza* accumulated 50.2% protein un
 der sustained low-nitrogen conditions. *Wolffia globosa* exhibited unique 
 metabolic traits\, producing both high carbohydrate (50.7%) and protein (4
 4.0%) contents under prolonged high-nitrogen cultivation. Drying condition
 s (40–55°C) significantly affected nutrient retention\, pigment stabili
 ty\, powder properties\, and downstream processing suitability\, enabling 
 biomass quality to be tailored for specific applications. LCA identified e
 lectricity use (80.4 kg CO₂-eq kg⁻¹ dry biomass) and water production
  (39.8 kg CO₂-eq kg⁻¹) as the major environmental hotspots. Neverthel
 ess\, cultivation of *L. minor* and *S. polyrhiza* achieved net carbon rem
 oval of 33.6 kg CO₂-eq kg⁻¹ dry biomass through biogenic carbon seque
 stration. Furthermore\, integrating photovoltaic electricity transformed *
 W. globosa* cultivation into a net carbon sink\, sequestering 81.0 kg CO
 ₂-eq kg⁻¹ dry biomass. These findings demonstrate that optimized cult
 ivation and processing strategies can support application-specific duckwee
 d production while enhancing environmental and economic sustainability in 
 tropical regions.\n\nhttps://indico.unina.it/event/117/contributions/2952/
LOCATION: Sala Monumentini
URL:https://indico.unina.it/event/117/contributions/2952/
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