Saccharification of Spirulina platensis biomass using free and immobilized amylolytic enzymes

被引：30
|
作者：
Rempel, Alan [1 ]
Machado, Tainara [2 ]
Treichel, Helen [3 ]
Colla, Eliane [4 ]
Margarites, Ana Claudia [1 ]
Colla, Luciane Maria [1 ]
机构：
[1] Univ Passo Fundo, Civil & Environm Engn, Campus 1,Km 171,BR 285,POB 611, BR-99001970 Passo Fundo, RS, Brazil
[2] Univ Passo Fundo, Food Engn Course, Campus 1,Km 171,BR 285,POB 611, BR-99001970 Passo Fundo, RS, Brazil
[3] Fed Univ Fronteira Sul, Environm Sci & Technol, Campus Erechim,RS 135,Km 72, BR-99700000 Erechim, RS, Brazil
[4] Fed Technol Univ Parana UTFPR, Food Technol, Av Brasil 4232,POB 271, BR-85884000 Medianeira, Parana, Brazil
来源：
BIORESOURCE TECHNOLOGY | 2018年 / 263卷
关键词：
Bioethanol; Cell rupture; Hydrolysis; Amylolytic enzymes; Immobilization; Polyurethane foam; BIOETHANOL PRODUCTION; MICROALGAL BIOMASS; BIOFUELS PRODUCTION; ETHANOL-PRODUCTION; REDUCING SUGAR; OPPORTUNITIES; FERMENTATION; PRETREATMENT; CHALLENGES; AMYLASE;
D O I：
10.1016/j.biortech.2018.04.114
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
We aimed to use physical methods of microalgal biomass rupture to study saccharification strategies using free and immobilized amylolytic enzymes. The biomass of Spirulina platensis, which consists of 50-60% carbohydrates, was exposed to physical cell rupture treatments, with better results obtained using freeze/thaw cycles following by gelatinization. In saccharification tests, it was possible to hydrolyze Spirulina biomass with hydrolysis efficiencies above 99% and 83%, respectively, using 1% (v/v) of free enzymes or 1% (m/v) of amylolytic enzymes immobilized together. The use of free and immobilized enzymes yielded high levels of conversion of polysaccharides to simple sugars in Spirulina biomass, showing that these processes are promising for the advancement of bioethanol production using microalgal biomass.
引用
收藏
页码：163 / 171
页数：9
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