Autotrophic and heterotrophic microalgae and cyanobacteria cultivation for food and feed: life cycle assessment
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Autotrophic and heterotrophic microalgae and cyanobacteria cultivation for food and feed : life cycle assessment. / Smetana, Sergiy; Sandmann, Michael; Rohn, Sascha et al.
In: Bioresource Technology, Vol. 245, No. Part A, 01.12.2017, p. 162-170.Research output: Journal contributions › Journal articles › Research › peer-review
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TY - JOUR
T1 - Autotrophic and heterotrophic microalgae and cyanobacteria cultivation for food and feed
T2 - life cycle assessment
AU - Smetana, Sergiy
AU - Sandmann, Michael
AU - Rohn, Sascha
AU - Pleißner, Daniel
AU - Heinz, Volker
PY - 2017/12/1
Y1 - 2017/12/1
N2 - The lack of protein sources in Europe could be reduced with onsite production of microalgae with autotrophic and heterotrophic systems, owing the confirmation of economic and environmental benefits. This study aimed at the life cycle assessment (LCA) of microalgae and cyanobacteria cultivation (Chlorella vulgaris and Arthrospira platensis) in autotrophic and heterotrophic conditions on a pilot industrial scale (in model conditions of Berlin, Germany) with further biomass processing for food and feed products. The comparison of analysis results with traditional benchmarks (protein concentrates) indicated higher environmental impact of microalgae protein powders. However high-moisture extrusion of heterotrophic cultivated C. vulgaris resulted in more environmentally sustainable product than pork and beef. Further optimization of production with Chlorella pyrenoidosa on hydrolyzed food waste could reduce environmental impact in 4.5 times and create one of the most sustainable sources of proteins.
AB - The lack of protein sources in Europe could be reduced with onsite production of microalgae with autotrophic and heterotrophic systems, owing the confirmation of economic and environmental benefits. This study aimed at the life cycle assessment (LCA) of microalgae and cyanobacteria cultivation (Chlorella vulgaris and Arthrospira platensis) in autotrophic and heterotrophic conditions on a pilot industrial scale (in model conditions of Berlin, Germany) with further biomass processing for food and feed products. The comparison of analysis results with traditional benchmarks (protein concentrates) indicated higher environmental impact of microalgae protein powders. However high-moisture extrusion of heterotrophic cultivated C. vulgaris resulted in more environmentally sustainable product than pork and beef. Further optimization of production with Chlorella pyrenoidosa on hydrolyzed food waste could reduce environmental impact in 4.5 times and create one of the most sustainable sources of proteins.
KW - Cyanobacteria LCA
KW - Fermenter
KW - Microalgae
KW - Open raceway ponds
KW - Tubular photobioreactor
KW - Chemistry
UR - http://www.scopus.com/inward/record.url?scp=85028917973&partnerID=8YFLogxK
U2 - 10.1016/j.biortech.2017.08.113
DO - 10.1016/j.biortech.2017.08.113
M3 - Journal articles
C2 - 28892686
AN - SCOPUS:85028917973
VL - 245
SP - 162
EP - 170
JO - Bioresource Technology
JF - Bioresource Technology
SN - 0960-8524
IS - Part A
ER -