Artificial light source selection in seaweed production: growth of seaweed and biosynthesis of photosynthetic pigments and soluble protein

PeerJ

article

Shitao Huang¹  Ke Li¹  Yaoru Pan¹  Yan Yu¹  Thomas Wernberg²  Thibaut de Bettignies²  Jiaping Wu¹  Chaosheng Zhou⁴  Zhixing Huang⁴  Xi Xiao¹ 

[1] Ocean College, Zhejiang University;UWA Oceans Institute and School of Plant Biology, University of Western Australia;UMS 2006 Patrimoine Naturel ,(PatriNat), OFB-CNRS-MNHN, Muséum national d’Histoire naturelle;Zhejiang Mariculture Research Institute ,(Zhejiang Key Lab of Exploitation and Preservation of Coastal Bio-resource)

关键词: Light-emitting diodes(leds);    Pigment;    Soluble protein;    Light sources;    Seaweed;   

DOI  :  10.7717/peerj.11351

学科分类：社会科学、人文和艺术（综合）

来源: Inra

【 摘 要 】

Seaweed growth is often limited by light. Artificial light supply has been well studied in terrestrial agriculture, however, much less is known about its effect in seaweed aquaculture. In this study, the effects of four artificial light sources (white, red, green, and blue LEDs light) on a brown alga Sargassum fusiforme and a green alga Ulva pertusa were investigated. Seaweed growth, accumulation of photosynthetic pigments (chlorophyll a and carotenoid), and soluble protein were evaluated. White LED light was the optimal supplementary light when cultivating Ulva pertusa and Sargassum fusiforme, because it promoted seaweed growth while maintaining protein production. Meanwhile, red LED was unfavored in the cultivation of S. fusiforme, as it affected the seaweed growth and has a lower residual energy ratio underneath the water. LEDs would be a promising supplementary light source for seaweed cultivation.

【 授权许可】

CC BY