Zhu Defei, Yang Runqing, Wei Dong
School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China.
Sheng Wu Gong Cheng Xue Bao. 2023 Mar 25;39(3):1070-1082. doi: 10.13345/j.cjb.220540.
The aim of this study was to develop a technical system for high-efficient production of fucoxanthin by photo-fermentation of . In a 5 L photo-fermentation tank, the effects of initial light intensity, nitrogen source and concentration as well as light quality on biomass concentration and fucoxanthin accumulation in were investigated systematically under mixotrophic condition. The results showed that the biomass concentration, fucoxanthin content and productivity reached the highest level of 3.80 g/L, 13.44 mg/g and 4.70 mg/(L·d) under the optimal conditions of initial light intensity of 100 μmol/(m·s), 0.02 mol TN/L of tryptone: urea (1:1, N mol/N mol) as mixed nitrogen source, and a mixed red/blue (R: B=6:1) light, 1.41, 1.33 and 2.05-fold higher than that before optimization, respectively. This study developed a key technology for enhancing the production of fucoxanthin by photo-fermentation of , facilitating the development of marine natural products.
本研究的目的是开发一种通过 光发酵高效生产岩藻黄质的技术系统。在5 L光发酵罐中，在混合营养条件下，系统研究了初始光强、氮源及其浓度以及光质对 生物量浓度和岩藻黄质积累的影响。结果表明，在初始光强为100 μmol/(m·s)、以0.02 mol TN/L的胰蛋白胨：尿素（1:1，N摩尔/N摩尔）作为混合氮源、红/蓝混合光（R:B = 6:1）的最佳条件下，生物量浓度、岩藻黄质含量和产量分别达到最高水平，为3.80 g/L、13.44 mg/g和4.70 mg/(L·d)，分别比优化前提高了1.41、1.33和2.05倍。本研究开发了一种通过 光发酵提高岩藻黄质产量的关键技术，促进了海洋天然产物的开发。
