Temporal changes in the characteristics of algae in Dianchi Lake,Yunnan Province,China

作     者：Ruixia SHEN Chunyan TIAN Zhidan LIU Yuanhui ZHANG Baoming LI Haifeng LU Na DUAN 

作者机构：Laboratory of Environment-Enhancing Energy(E2E)and Key Laboratory of Agricultural Engineering in Structure and EnvironmentMinistry of AgricultureCollege of Water Resources and Civil EngineeringChina Agricultural UniversityBeijing 100083China Department of Agricultural and Biological EngineeringUniversity of Illinois at Urbana-ChampaignUrbanaIL 61801USA 

出 版 物：《Frontiers of Agricultural Science and Engineering》 (农业科学与工程前沿（英文版）)

年 卷 期：2015年第2卷第3期

页      面：266-275页

学科分类：0202[经济学-应用经济学] 02[经济学] 020205[经济学-产业经济学] 

基　　金：the Chinese Universities Scientific Fund(2015SYL004) 

主　　题：algal blooms temporal change biochemical property biodiversity hydrothermal liquefaction 

摘      要：Algal blooms have become a worldwide environmental concern due to water *** Lake in Yunnan Province,China is suffering from severe eutrophication and is listed in the Three Important Lakes Restoration Act of *** liquefaction allows a promising and direct conversion of algal biomass into biocrude *** this study,algal samples were collected from Dianchi Lake after a separation procedure including dissolved air flotation with polyaluminum chloride and centrifugation during four months,April,June,August and *** algal biochemical components varied over the period;lipids from 0.7%to 2.1%ash-free dry weight(afdw),protein from 20.9%to 33.4%afdw and ash from 36.6%to 45.2%dry *** algae in June had the highest lipid and protein concentrations,leading to a maximum biocrude oil yield of 24.3%*** analysis using pyrosequencing revealed different distributions of microbial communities,specifically Microcystis in April(89.0%),June(63.7%)and August(84.0%),and Synechococcus in April(2.2%),June(12.0%)and August(1.0%).This study demonstrated remarkable temporal changes in the biochemical composition and biodiversity of algae harvested from Dianchi Lake and changes in biocrude oil production potential.