Bioresource Technology 249 (2018) 206–211 Contents lists available at ScienceDirect Bioresource Technology journal homepage: www.elsevier.com/locate/biortech Harvesting and contamination control of microalgae Chlorella ellipsoidea using the bio-polymeric ﬂocculant α-poly-L-lysine a,1 a,1 a b a, Won Noh , Jungmin Kim , Sang-jun Lee , Byung-Gon Ryu , Chang-min Kang Future Environmental Research Center, Korea Institute of Toxicology, 17, Jegok-gil, Samgok-ri, Munsan-eup, Jinju-si, Gyeongsangnam-do 52834, Republic of Korea Freshwater Bioresources Utilization Bureau, Nakdonggang National Institute of Biological Resources, 137, Donam 2-gil, Sangju-si, Gyeongsangbuk-do 37242, Republic of Korea GR APHICAL A BSTRACT ARTICLE I NFO ABSTRACT Keywords: Microalgae have been extensively studied for the production of various products. However, to date, microalgal Chlorella ellipsoidea biomass has not become economically feasible, mainly due to diﬀerent issues such as contamination from α-poly-L-lysine various sources that occurs during downstream processes, and which leads to low quality biomass with limited Harvesting application. In this study, to overcome contamination by ﬂocculants and other microorganisms, the cationic Contamination reduction biopolymer α-Poly-L-lysine (α-PLL) was applied. The cationic amine moiety and polymeric chain of α-PLL rendered microalgal harvesting eﬃcient. With increasing α-PLL chain length, eﬃcient dose- and time-dependent harvesting was achieved. In addition to eﬃcient ﬂocculation performance, biomass harvested using α-PLL
Bioresource Technology – Elsevier
Published: Feb 1, 2018
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