期刊
JOURNAL OF CLEANER PRODUCTION
卷 198, 期 -, 页码 187-194出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jclepro.2018.07.016
关键词
Microalgae; Organic dyes: light manipulation; Light wavelength; Pigments
资金
- Durban University of Technology
- National Research Foundation (South Africa)
Numerous research efforts have channeled toward microalgal cultivation systems due to their potential benefit in several applications. Microalgae utilize specific wavelengths of light for photosynthesis. Manipulation of incident irradiance could increase light availability to algae which could enhance pigment production. This study sought to enhance light availability to Chlamydomonas reinhardtii using organic dyes as light converters, thereby improving microalgal pigment production. Diphenylanthracene, Diphenyloxazole, Rhodamine 8G and Lumogen yellow were evaluated at varying concentrations in methanol, ethanol, and acetone. Spectrophotometric analyses revealed that most of the dyes had higher fluorescent intensities in methanol at 10 mgL(-1). Lumogen yellow exhibited the highest areal intensity but did not increase biomass production. Rhodamine 8G grown algae increased chlorophyll and carotenoid concentrations by 45 wt% and 36 wt%, respectively. Light stress was observed by increased non photochemical quenching from approximately 0.05 to above 0.5 and decreased quantum efficiencies of photosystem 2. This novel light manipulation strategy will potentially enable more economical production of high-value microalgal bioproducts using natural sunlight as opposed to artificial light. (C) 2018 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据