Year-Round Cultivation of Tetraselmis sp. for Essential Lipid Production in a Semi-Open Raceway System SCIE SCOPUS

Cited 0 time in WEB OF SCIENCE Cited 0 time in Scopus
Title
Year-Round Cultivation of Tetraselmis sp. for Essential Lipid Production in a Semi-Open Raceway System
Author(s)
Lee, Won-Kyu; Ryu, Yong-Kyun; Choi, Woon-Yong; Kim, Taeho; Park, Areumi; Lee, Yeon-Ji; Jeong, Younsik; Lee, Choul-Gyun; Kang, Do-Hyung
KIOST Author(s)
Lee, Won Kyu(이원규)Ryu, Yong Kyun(유용균)Choi, Yong-Woon(최운용)Kim, Taeho(김태호)Park, Areumi(박아름이)Lee, Yeon-Ji(이연지)Jeong, Younsik(정윤식)Kang, Do-Hyung(강도형)
Alternative Author(s)
이원규; 유용균; 최운용; 김태호; 박아름이; 이연지; 정윤식; 강도형
Publication Year
2021-05
Abstract
There is increasing demand for essential fatty acids (EFAs) from non-fish sources such as microalgae, which are considered a renewable and sustainable biomass. The open raceway system (ORS) is an affordable system for microalgae biomass cultivation for industrial applications. However, seasonal variations in weather can affect biomass productivity and the quality of microalgal biomass. The aim of this study was to determine the feasibility of year-round Tetraselmis sp. cultivation in a semi-ORS in Korea for biomass and bioactive lipid production. To maximize biomass productivity of Tetraselmis sp., f medium was selected because it resulted in a significantly higher biomass productivity (1.64 +/- 0.03 g/L) and lower omega-6/omega-3 ratio (0.52/1) under laboratory conditions than f/2 medium (0.70/1). Then, we used climatic data-based building information modeling technology to construct a pilot plant of six semi-ORSs for controlling culture conditions, each with a culture volume of 40,000 L. Over 1 year, there were no significant variations in monthly biomass productivity, fatty acid composition, or the omega-6/omega-3 ratio; however, the lipid content correlated significantly with photosynthetic photon flux density. During year-round cultivation from November 2014 to October 2017, areal productivity was gradually increased by increasing medium salinity and injecting CO2 gas into the culture medium. Productivity peaked at 44.01 g/m(2)/d in October 2017. Throughout the trials, there were no significant differences in average lipid content, which was 14.88 +/- 1.26%, 14.73 +/- 2.44%, 12.81 +/- 2.82%, and 13.63 +/- 3.42% in 2014, 2015, 2016, and 2017, respectively. Our results demonstrated that high biomass productivity and constant lipid content can be sustainably maintained under Korean climate conditions.
ISSN
1660-3397
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/41444
DOI
10.3390/md19060314
Bibliographic Citation
MARINE DRUGS, v.19, no.6, 2021
Publisher
MDPI
Subject
FATTY-ACID; NANNOCHLOROPSIS-OCULATA; LIGHT-INTENSITY; CHLORELLA SP; DUNALIELLA-TERTIOLECTA; MASS CULTIVATION; OUTDOOR CULTURE; GROWTH-MEDIUM; MICROALGAE; NITROGEN
Keywords
microalgae; Tetraselmis sp; open raceway pond; building information modeling; Korea; year-round production; areal productivity; lipid content; polyunsaturated fatty acid
Type
Article
Language
English
Document Type
Article
Publisher
MDPI
Related Researcher
Research Interests

Microalgae Culture and Application,Aquaculture System Engineering,미세조류 배양 및 응용,배양시스템 엔지니어링,유용해양생물 배양 및 응용

Files in This Item:
There are no files associated with this item.

qrcode

Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse