Enhancing astaxanthin accumulation in immobilized Haematococcus pluvialis via alginate hydrogel membrane

文献类型： 外文期刊

第一作者： Zhang, Yating

作者： Zhang, Yating;Su, Dong;Zhao, Ling;Yu, Yueqin;Zhang, Yating;Wang, Xixi;Zhao, Ling;Leng, Kailiang;Miao, Junkui;Leng, Kailiang;Leng, Kailiang

作者机构：

关键词： Haematococcus pluvialis; Immobilized cultivation; Hydrogel membrane

期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：8.5； 五年影响因子：8.7 ）

ISSN： 0141-8130

年卷期： 2025 年 292 卷

页码：

收录情况： SCI

摘要： Immobilized cultivation is anticipated to be effective for enhancing both biomass and astaxanthin accumulation in Haematococcus pluvialis (H. pluvialis). A novel fabrication method of alginate hydrogel membrane (AHM) was introduced for immobilized cultivation of H. pluvialis. This method incorporates cotton gauze into a hydrogel with a low sodium alginate (SA) concentration of 0.5 %, utilizing endogenous calcification. The optimized culture strategy achieved a peak astaxanthin productivity of 256.3 mg center dot m- 2 center dot d- 1 with an inoculum of 16 g center dot m- 2 under light irradiation of 300 mu mol center dot m- 2 center dot s- 1 on day 4, resulting in a 70.8 % increase in astaxanthin yield over the control group. Furthermore, a recovery method for H. pluvialis and SA from AHM was explored, using Na2CO3 to disintegrate AHM to recover all the microalgal cells and SA with a recovery rate of 88.7 %. Collectively, these findings suggest that immobilized cultivation using AHM is an effective strategy for boosting biomass and astaxanthin accumulation in H. pluvialis.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序