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Examination of indigenous microalgal species for maximal protein synthesis
Biochemical Engineering Journal ( IF 3.9 ) Pub Date : 2020-02-01 , DOI: 10.1016/j.bej.2019.107425
Chung Hong Tan , Pau Loke Show , Man Kee Lam , Xiaoting Fu , Tau Chuan Ling , Chun-Yen Chen , Jo-Shu Chang

Abstract The expanding aquaculture industry increases the prices of fishmeal, the main protein source in fish diet. A promising alternative is microalgal protein. Therefore, we investigated the protein production capacities of green microalgae Chlorella sorokiniana CY1 and Chlorella vulgaris ESP-31. After optimization, the maximum biomass and protein productivities of Chlorella sorokiniana CY1 reached high values of 4.35 ± 0.09 and 0.856 ± 0.025 g/L/d, while that of Chlorella vulgaris ESP-31 also reached high values of 4.636 ± 0.10 and 0.946 ± 0.065 g/L/d. The cultivation time for both species was only 2 days, wherein Chlorella sorokiniana CY1 and Chlorella vulgaris ESP-31 amassed moderate protein contents of 25.9 ± 1.3% and 26.8 ± 1.3%. The optimum conditions for both species were 50% initial nitrate concentration of Basal medium, 5% CO2 aeration, and 750 μmol/m2/s light intensity. The high biomass and protein productivities of both species indicated their capability as potential protein sources.

中文翻译:

检查本地微藻物种以实现最大蛋白质合成

摘要 不断扩大的水产养殖业提高了鱼粉的价格,鱼粉是鱼类饮食中的主要蛋白质来源。一个有前途的替代品是微藻蛋白。因此,我们研究了绿色微藻 Chlorella sorokiniana CY1 和 Chlorella vulgaris ESP-31 的蛋白质生产能力。优化后,Chlorella sorokiniana CY1的最大生物量和蛋白质生产力达到了4.35±0.09和0.856±0.025 g/L/d的高值,而普通小球藻ESP-31的最大生物量和蛋白质生产力也达到了4.636±0.10和0.9046的高值。克/升/天。这两个物种的培养时间仅为 2 天,其中 Chlorella sorokiniana CY1 和 Chlorella vulgaris ESP-31 积累了 25.9 ± 1.3% 和 26.8 ± 1.3% 的中等蛋白质含量。两种物种的最佳条件是基础培养基的初始硝酸盐浓度为 50%,二氧化碳通气量为 5%,和 750 μmol/m2/s 光强度。这两个物种的高生物量和蛋白质生产力表明它们具有作为潜在蛋白质来源的能力。
更新日期:2020-02-01
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