Cellulose production by Gluconacetobacter kakiaceti GM5 in two batch process using vinasse as culture media
ABSTRACT: The present study was conducted to evaluate the cellulose production by Gluconacetobacter kakiaceti GM5 by means of two aerobic treatments: the static discontinuous fermentation process (treatment 1) and the discontinuous fermentation process in a rotary shaker (treatment 2). All these exp...
- Autores:
-
Fernández Calle, Erika Pamela
Velásquez Riaño, Möritz
Villa Restrepo, Andrés Felipe
Lombana Sánchez, Nelson
- Tipo de recurso:
- Article of investigation
- Fecha de publicación:
- 2015
- Institución:
- Universidad de Antioquia
- Repositorio:
- Repositorio UdeA
- Idioma:
- eng
- OAI Identifier:
- oai:bibliotecadigital.udea.edu.co:10495/31509
- Acceso en línea:
- https://hdl.handle.net/10495/31509
- Palabra clave:
- Fermentación
Fermentation
Aerobiosis
Celulosa - metabolismo
Cellulose - metabolism
Medios de Cultivo - química
Culture Media - chemistry
Gluconacetobacter - metabolismo
Gluconacetobacter - metabolism
- Rights
- openAccess
- License
- http://creativecommons.org/licenses/by-nc-nd/2.5/co/
Summary: | ABSTRACT: The present study was conducted to evaluate the cellulose production by Gluconacetobacter kakiaceti GM5 by means of two aerobic treatments: the static discontinuous fermentation process (treatment 1) and the discontinuous fermentation process in a rotary shaker (treatment 2). All these experiments were carried out using vinasse as experimental culture media (VM) and were compared with standard media containing glucose at 2% (standard medium (SM)). A sample of each treatment was extracted every 24 h over a period of 168 h. The maximum rates of cellulose produced in treatment 1 using SM added up to 3.63 ± 0.18 g l 1, and to 4.15 ± 0.16 g l 1 when VM was used. The amount of cellulose produced in treatment 2 using SM was 2.95 ± 0.09 g l 1 (which suggests an increase of 37%), and added up to 1.84 ± 0.07 g l 1 when using VM. A better global yield of both treatments in terms of sugar consumption after 168 h was obtained when using VM: 32% in treatment 1, whereas in treatment 2 it was 9%. A 20% decrease on vinasse COD (Chemical Oxy |
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