Home > International Symposium on New Technologies and Management for Greenhouses – GreenSys2015 > Effect of different photoperiods on the biochemical profile of the green algae C. vulgaris and S. obliquus

Articles

Effect of different photoperiods on the biochemical profile of the green algae C. vulgaris and S. obliquus

Article number

1170_148

Pages

1149 – 1156

Language

English

Abstract

Microalgae are photosynthetic plant-like organisms, which are considered to be a fast growing source for a sustainable production of various products (e.g. food and food supplements, biofuels or animal feed and aquaculture). Currently, some of the bottlenecks for the commercial use are the low efficiency of production yields, efficient harvesting technologies for sensitive products and high establishment costs.
Light, its quality as well as quantity, is a main critical parameter for microalgal growth and metabolism.
Thus, artificial lighting offers the option of improved production of microalgal biomass as well as increases in special metabolites under defined conditions.
On the other hand, artificial lighting is a highly expensive factor.
The aim of the present study is to investigate the influence of several photoperiods (14:10, 20:4, 22:2, 24:0-h for Chlorella vulgaris and additional 16:8, 18:6-h for Scendesmus obliquus) on the biochemical profile of single-celled green algae C. vulgaris and S. obliquus. Preliminary results indicated that S. obliquus showed higher cell contents of proteins, chl a and chl b, lutein, ß-carotene, astaxanthin and α-linolenic amounts independently from the photoperiod.
However, based on the achieved biomass respectively cell concentration in the related photoperiods, the possible harvest yield of these compounds is similar in both species or just little more effective by S. obliquus.

Publication

International Symposium on New Technologies and Management for Greenhouses – GreenSys2015

Authors

C. Scharff, N. Domurath, M. Wensch-Dorendorf, F.-G. Schröder

Keywords

microalgae, light, protein, fatty acids, carotenoids

Full text

https://doi.org/10.17660/ActaHortic.2017.1170.148

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