Optimization of Industrial-Scale Cultivation Conditions to Enhance the Nutritional Composition of Nontoxic Cyanobacterium Leptolyngbya sp. KIOST-1
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Title
- Optimization of Industrial-Scale Cultivation Conditions to Enhance the Nutritional Composition of Nontoxic Cyanobacterium Leptolyngbya sp. KIOST-1
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Author(s)
- Lee, Won Kyu; Ryu, Yong Kyun; Kim, Tae Ho; Park, Areumi; Lee, Yeon-Ji; Lee, Young Deuk; Kim, Ji Hyung; Oh, Chul Hong; Kang, Do Hyung; Choi, Yong Woon
- KIOST Author(s)
- Lee, Won-Kyu(이원규); Ryu, Yong Kyun(유용균); Kim, Tae Ho(김태호); Park, Areumi(박아름이); Lee, Yeon-Ji(이연지); Lee, Young Deuk(이영득); Oh, Chul Hong(오철홍); Kang, Do Hyung(강도형); Choi, Yong Woon(최운용)
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Alternative Author(s)
- 이원규; 유용균; 김태호; 박아름이; 이연지; 이영득; 오철홍; 강도형; 최운용
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Publication Year
- 2024-01
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Abstract
- Leptolyngbya sp. KIOST-1 has been proposed as a candidate species for use as a protein supplement due to its high protein content and absence of cytotoxicity. The species has also garnered attention due to the photosynthetic pigments it possesses. However, limited information is available on its cultivation. Therefore, this study was conducted to identify the optimal culture medium and fundamental physiological properties of Leptolyngbya sp. KIOST-1 under various culture conditions. In this study, SOT (Society of Toxicology) medium was confirmed as the optimal culture medium for Leptolyngbya sp. KIOST-1 growth. The biomass production, protein content, and photosynthetic pigment content of Leptolyngbya sp. KIOST-1 were significantly higher in SOT medium. The use of this medium allowed for scaling up from laboratory (10 mL) to pilot (200 L) conditions and industrial-scale outdoor conditions (10,000 L), with the biomass containing over 66% protein. The phytochemical composition of Leptolyngbya sp. KIOST-1 cultured at laboratory and industrial-scales was discovered in this study. Furthermore, we observed that reducing the carbon and nitrogen sources to 1/5 of those supplied by the optimal medium did not significantly affect biomass production, and Leptolyngbya sp. KIOST-1 demonstrated favorable growth capabilities in a salinity range of 10–50 psu and at pH levels of 8.3 to 10.3. The results of this study demonstrate the suitability of Leptolyngbya sp. KIOST-1 for various industrial applications and its adaptability to large-scale cultivation.
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URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/45120
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DOI
- 10.3390/app14010282
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Bibliographic Citation
- Applied Sciences-basel, v.14, no.1, 2024
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Publisher
- MDPI
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Keywords
- Leptolyngbya; Arthrospira (Spirulina); cyanobacterium; SOT medium; industrial-scale cultivation; open raceway pond
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Type
- Article
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Language
- English
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Document Type
- Article
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