To maximize the biomass and lipid production for applications in food or biofuel feedstock, nine stress conditions were tested considering N and/or P limitations, light intensity & quality, for Haematococcus pluvialis SCCAP K-0084 cultivation. Photosynthetically active radiation (PAR), warm white light emitting diode (WWLED), and white light emitting diode (WLED) at illumination of 240 μmol photons m(-2) sec(-1) were the best stress-regulatory factors. PAR without P & low N conditions yielded high biomass with 33% lipids containing increased C16:0 and C18:0 saturated fatty acids, and reduced unsaturated fatty acids (UFAs) (oleic, linoleic, and α/γ-linolenic). WWLED and WLED without P conditions also yielded high biomass, but 25% lipids with increased amounts of UFAs. Red light emitting diode (RLED) without P & low N conditions yielded 46% lipids with lowest biomass. PAR and WWLED & WLED illuminated conditions were found suitable respectively for biodiesel feedstock lipids and UFA-rich lipids for multiple applications.

译文

:为了使生物质和脂质的生产最大化以用于食品或生物燃料原料,测试了九种胁迫条件,考虑了氮和/或磷的限制,光强度和质量,适用于雨生红球菌SCCAP K-0084的培养。在240μmol光子m(-2)sec(-1)的光照下,光合有效辐射(PAR),暖白光发光二极管(WWLED)和白光发光二极管(WLED)是最佳的应力调节因子。没有P和低N条件的PAR产生了高生物量,其中33%的脂质包含增加的C16:0和C18:0饱和脂肪酸,以及减少的不饱和脂肪酸(UFAs)(油酸,亚油酸和α/γ-亚麻酸)。没有P条件的WWLED和WLED也产生高生物量,但是25%的脂质具有增加的UFA含量。没有P和低N条件的红色发光二极管(RLED)产生了46%的脂质,具有最低的生物量。发现PAR和WWLED和WLED照明的条件分别适合于生物柴油原料脂质和富含UFA的脂质的多种应用。

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