Bioplastic recovery from wastewater: A new protocol for polyhydroxyalkanoates (PHA) extraction from mixed microbial cultures

被引：111
|
作者：
Mannina, Giorgio [1 ]
Presti, Dario [1 ]
Montiel-Jarillo, Gabriela [2 ]
Eugenia Suarez-Ojeda, Maria [2 ]
机构：
[1] Univ Palermo, Dipartimento Ingn, Viale Sci,Ed 8, Palermo, Italy
[2] Univ Autonoma Barcelona, Dept Chem Biol & Environm Engn, GENOCOV Res Grp, Sch Engn,Escola Engn, Edifici Q Campus UAB, E-08193 Barcelona, Spain
来源：
BIORESOURCE TECHNOLOGY | 2019年 / 282卷
关键词：
Bioplastic; Water resource recovery; PHA; Wastewater treatment; POLY(3-HYDROXYBUTYRATE) PRODUCTION; MICROSTRUCTURE; PERFORMANCE; ENRICHMENT; EFFICIENT; BIOMASS;
D O I：
10.1016/j.biortech.2019.03.037
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
A new protocol for polyhydroxyalkanoates (PHA) extraction from mixed microbial cultures (MMCs) is proposed. PHA-accumulating capacity of the MMC was selected in a sequencing batch reactor (SBR) fed with a synthetic effluent emulating a fermented oil mill wastewater (OMW). The highest recovery yield and purity (74 +/- 8% and 100 +/- 5%, respectively) was obtained when using NH4-Laurate for which operating conditions of the extraction process such as temperature, concentration and contact time were optimized. Best conditions for PHA extraction from MMC turned to be: i) a pre-treatment with NaClO at 85 degrees C with 1 h of contact time, followed by ii) a treatment with lauric acid in a ratio acid lauric to biomass of 2:1 and 3 h of contact time.
引用
收藏
页码：361 / 369
页数：9
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