TITLE:
Nutrients Extracted from Chicken Manure Accelerate Growth of Microalga Scenedesmus obliquus HTB1
AUTHORS:
Xiaotian Han, Nicole Rusconi, Pervaiz Ali, Kevin Pagkatipunan, Feng Chen
KEYWORDS:
Microalgae, Scenedesmus, Chicken Manure, Nutrient Recycle
JOURNAL NAME:
Green and Sustainable Chemistry,
Vol.7 No.2,
May
18,
2017
ABSTRACT: Sustainable development using wastes as resources is a new paradigm. Chicken
manure contains rich amounts of nitrogen and phosphorus and has been
used as crop fertilizer. However, little is known about whether nutrients of
chicken manure are suitable and efficient to support the rapid growth of microalgae.
In this study, we explore the possibility of using nutrient extracted
from chicken manure to grow microalgae. We used an algal strain Scenedesmus sp. HTB1, which is an oleaginous species with high CO2 tolerance capability.
The growth performance of HTB1 on various media amended with nutrient
extracted from three different chicken manure sources was monitored
and compared to the growth rate of HTB1 grown in the standard medium
BG11. Meanwhile, the changes of total nitrogen (N) and phosphorus (P), both
organic and inorganic, were measured during the growth period. Culture media
enriched with the nutrient extracted from two chicken manure sources
outperformed the standard culture medium BG11 in terms of algal biomass
production. When cultivated with manure nutrient, HTB1 utilized inorganic
N efficiently, but consumed very little organic N during the experimental
growth period. However, HTB1 was able to utilize both organic and inorganic
phosphorus. We demonstrate that nutrient extracted from chicken manure
support rapid growth and high biomass yield in microalgaeScenedesmus obliquusHTB1. Therefore chicken manure holds great promise to be used as a
cost-effective and efficient fertilizer for large-scale production of microalgae.