Kim J H, Choi W, Jeon S-M, Kim T, Park A, Kim J, Heo S-J, Oh C, Shim W-B, Kang D-H
Jeju International Marine Science Center for Research & Education, Korea Institute of Ocean Science & Technology, Jeju, Korea.
Departments of Marine Life Science, Jeju National University, Jeju, Korea.
J Appl Microbiol. 2015 Dec;119(6):1597-612. doi: 10.1111/jam.12961. Epub 2015 Oct 30.
Cyanobacteria have been used as sustainable bioresource producers for foods, feeds and other valuable natural products. However, selection of a new species (other than Arthrospira), with advantageous properties for alimentary purposes, continues to be a challenge due to potential toxicity and low biomass productivity. In this study, we report a valuable filamentous cyanobacterium isolated from Korea.
Morphological and phylogenetic analyses demonstrated that the isolate belongs to the genus Leptolyngbya, and consequently designated Leptolyngbya sp. KIOST-1. Interestingly, Leptolyngbya sp. KIOST-1 possessed numerous advantageous characteristics for biomass production, similar to Arthrospira. The isolate readily propagated in SOT medium with efficient biomass productivity, and its optimum growth was observed at 30°C under alkaline and saline conditions. Moreover, more than half of the cellular components in Leptolyngbya sp. KIOST-1 were composed of protein, with approx. 40% of essential amino acids. Most importantly, no significant cytotoxicity was detected in the isolate.
Leptolyngbya sp. KIOST-1 has a number of advantageous characteristics for alimentary purposes due to its efficient productivity, high protein content and lack of potential cytotoxicity.
Leptolyngbya sp. KIOST-1 may be considered a potential candidate for industrial biomass production, similar to Arthrospira.
蓝细菌已被用作食品、饲料和其他有价值天然产物的可持续生物资源生产者。然而，由于潜在毒性和低生物量生产力，选择一种具有有利于食品用途的新物种（除节旋藻外）仍然是一项挑战。在本研究中，我们报告了一种从韩国分离出的有价值的丝状蓝细菌。
形态学和系统发育分析表明，该分离株属于细鞘丝藻属，因此命名为细鞘丝藻KIOST-1。有趣的是，细鞘丝藻KIOST-1具有许多与节旋藻相似的有利于生物量生产的特征。该分离株在SOT培养基中易于繁殖，具有高效的生物量生产力，并且在碱性和盐性条件下于30°C观察到其最佳生长。此外，细鞘丝藻KIOST-1中超过一半的细胞成分由蛋白质组成，其中约40%为必需氨基酸。最重要的是，在该分离株中未检测到明显的细胞毒性。
细鞘丝藻KIOST-1因其高效的生产力、高蛋白含量和缺乏潜在细胞毒性而具有许多有利于食品用途的特征。
细鞘丝藻KIOST-1可能被认为是类似于节旋藻的工业生物量生产的潜在候选者。
