Lutein production by microalgae using corn starch wastewater pretreated with rapid enzymatic hydrolysis

Heshan Zheng, Yu Wang, Shuo Li, Qinglian Wu, Xiaochi Feng, Yongjie Zheng, Yoong Kit Leong, Duu Jong Lee, Jo Shu Chang

研究成果: Article同行評審

3 引文 斯高帕斯(Scopus)

摘要

The main purpose of this study was to explore the pretreatment process of corn starch wastewater (CSW) and engineered microalgae cultivation strategy to improve the nutrient recovery from wastewater and the yield of microalgae lutein. One-stage enzymatic hydrolysis utilizing α-amylase and glucoamylase simultaneously was established to efficiently harvest a maximum concentration of reducing sugar content of 7.26 g/L from CSW in 50 min. Lutein yield of 10.96 mg/L was obtained under 24 h continuous illumination with 2200 Lux light intensity. Furthermore, a cyclic feeding cultivation strategy was developed to improve lutein accumulation and COD removal up to 25.9 mg/L and 50.7%, respectively, after three cultivation cycles. Lutein yield of 14.86 mg/L and COD removal efficiency of 73.2% was achieved with further implementation in actual wastewater. This work provided a new perspective in developing the potential of cultivating microalgae with corn starch wastewater to produce high-value lutein.

原文English
文章編號126940
期刊Bioresource technology
352
DOIs
出版狀態Published - 2022 5月

All Science Journal Classification (ASJC) codes

  • 生物工程
  • 環境工程
  • 可再生能源、永續發展與環境
  • 廢物管理和處置

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