Growth phase-dependent biochemical composition of green microalgae: theoretical considerations for biogas production

Marek Klin , Filip Pniewski , Adam Latała

Abstract

One of the most efficient and promising technique for biofuel production from microalgae biomass is an anaerobic fermentation. The goal of this work was to investigate changes in the biochemical composition during the long-term cultivation period of 15 green microalgal strains originating from the Baltic Sea. Subsequently, their theoretical methane potential (TMP), which is strictly determined by an algal growth phase and thus physiological state, was established. Based on the full spectrum of changes in the percentage share of lipids, carbohydrates, and proteins in biomass, it was shown that the TMP values differed among strains as well as fluctuated during cultivation. The common trend, i.e., lipids accumulation and proteins breakdown in the late growth phase, was observed for most of the strains; others, however, preferred carbohydrates as storage material. The TMP data obtained herein allows developing a strategy for the design and production of algal biomass biochemically suited for fermentation.
Author Marek Klin (FOG / IO / DMEF)
Marek Klin,,
- Division of Marine Ecosystems Functioning
, Filip Pniewski (FOG / IO / DMEF)
Filip Pniewski,,
- Division of Marine Ecosystems Functioning
, Adam Latała (FOG / IO / DMEF)
Adam Latała,,
- Division of Marine Ecosystems Functioning
Journal seriesBioresource Technology, ISSN 0960-8524, e-ISSN 1873-2976, (N/A 140 pkt)
Issue year2020
Vol303
Pages1-9
Publication size in sheets0.5
Article number122875
Keywords in EnglishTMP, anaerobic digestion, volumetric productivity, biochemical composition, green microalgae
ASJC Classification2700 General Medicine; 1502 Bioengineering; 2105 Renewable Energy, Sustainability and the Environment; 2305 Environmental Engineering; 2311 Waste Management and Disposal
DOIDOI:10.1016/j.biortech.2020.122875
URL https://doi.org/10.1016/j.biortech.2020.122875
Languageen angielski
Score (nominal)140
Score sourcejournalList
ScoreMinisterial score = 140.0, 02-04-2020, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2018 = 1.824; WoS Impact Factor: 2018 = 6.669 (2) - 2018=6.589 (5)
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