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Contenido archivado el 2024-04-15

OPTIMIZATION AND METABOLIC CONTROL OF THE PRODUCTION OF AUTOTROPHIC MICROBIAL BIOMASS.

Objetivo

THE PURPOSE OF THIS PROJECT WAS TO CONSTRUCT A TUBULAR LOOP PHOTOBIOREACTOR, AND TO EVALUATE ITS EFFICIENCY IN THE LONDON CLIMATE AS A MEANS OF STORING SOLAR ENERGY BY ALGAL MASS PRODUCTION. ALSO THE POSSIBILITY OF PRODUCING A BIOMASS RICH IN LIPID WAS TO BE INVESTIGATED.

A PHOTOBIOREACTOR CONSISTING OF 25M PYREX TUBING OF 1CM BORE (0.25 SQ.M) WAS CONSTRUCTED AND HOUSED IN A GLASSHOUSE OUTDOORS. THE PHOTOBIOREACTOR WAS INSTRUMENTED TOGETHER WITH A MICRO-COMPUTER FOR BOTH PROCESS CONTROL AND DATA-LOGGING. ACCURATE TEMPERATURE AND PH CONTROL WERE ACHIEVED.
THE MICRO-ALGA SPIRULA PLATENSIS WAS GROWN UNDER LIGHT-LIMITED CONDITIONS IN ORDER TO TEST THE SYSTEM. THE PHOTOBIOREACTOR HAS OPERATED CONTINUOUSLY FOR 4 MONTHS AND A STEADY STATE BIOMASS CONCENTRATION OF 10G DRY WEIGHT L TO THE POWER OF MINUS 1 WAS ACHIEVED. THE MAXIMUM OUTPUT RATE WAS 2G DRY WEIGHT M TO THE POWER OF MINUS 2 H TO THE POWER OF MINUS 1. THE MAXIMUM PHOTOSYNTHETIC EFFICIENCY ACHIEVED UNDER LIGHT-LIMITED CONDITIONS WAS 0.0181G DRY WEIGHT (KG) TO THE POWER OF MINUS 1.
THE FREEZE DRIED BIOMASS WAS FRACTIONATED INTO LIPID, CARBOHYDRATE AND PROTEIN APPROXIMATELY IN THE PROPORTIONS, 1:2:7 BY WEIGHT.
THE OBJECTIVES WERE ACHIEVED. IT IS CONCLUDED THAT, BY MEANS OF THE TUBULAR REACTOR, ALGAL CULTIVATION WITH MAXIMUM EFFICIENCY OF BIOMASS PRODUCTION CAN BE ACHIEVED UNDER THE LONDON CLIMATIC CONDITIONS.

Ámbito científico (EuroSciVoc)

Programa(s)

Tema(s)

Datos no disponibles

Convocatoria de propuestas

Datos no disponibles

Régimen de financiación

CSC - Cost-sharing contracts

Coordinador

KING'S COLLEGE LONDON
Aportación de la UE
Sin datos
Dirección
STRAND
WC2R 2LS LONDON
Reino Unido
Coste total
Sin datos

Participantes (3)