TY  - JOUR
U1  - Wissenschaftlicher Artikel
A1  - Petersen, Finn
A1  - Demann, Johannes
A1  - Restemeyer, Dina
A1  - Olfs, Hans-Werner
A1  - Westendarp, Heiner
A1  - Appenroth, Klaus-Jürgen
A1  - Ulbrich, Andreas
T1  - Influence of Light Intensity and Spectrum on Duckweed Growth and Proteins in a Small-Scale, Re-Circulating Indoor Vertical Farm
JF  - Plants
N2  - Duckweeds can be potentially used in human and animal nutrition, biotechnology or wastewater treatment. To cultivate large quantities of a defined product quality, a standardized production process is needed. A small-scale, re-circulating indoor vertical farm (IVF) with artificial lighting and a nutrient control and dosing system was used for this purpose. The influence of different light intensities (50, 100 and 150 µmol m−2 s−1) and spectral distributions (red/blue ratios: 70/30, 50/50 and 30/70%) on relative growth rate (RGR), crude protein content (CPC), relative protein yield (RPY) and chlorophyll a of the duckweed species Lemna minor and Wolffiella hyalina were investigated. Increasing light intensity increased RGR (by 67% and 76%) and RPY (by 50% and 89%) and decreased chlorophyll a (by 27% and 32%) for L. minor and W. hyalina, respectively. The spectral distributions had no significant impact on any investigated parameter. Wolffiella hyalina achieved higher values in all investigated parameters compared to L. minor. This investigation proved the successful cultivation of duckweed in a small-scale, re-circulating IVF with artificial lighting.
KW  - Lemnaceae
KW  - Lemna minor
KW  - Wolffiella hyalina
KW  - Red/blue ratio
KW  - Standardized production
KW  - Yield
KW  - Light quality
KW  - Light quantity
KW  - Controlled environment
Y1  - 2022
UN  - https://nbn-resolving.org/urn:nbn:de:bsz:959-opus-55490
SN  - 2223-7747
SS  - 2223-7747
U6  - https://doi.org/10.3390/plants11081010
DO  - https://doi.org/10.3390/plants11081010
VL  - 11
IS  - 8
SP  - 15
S1  - 15
ER  -