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IDENTIFICATION AND EXPLOITATION OF COMPETITIVE PROPERTIES OF SOURDOUGH STARTERS FOR THE PRODUCTION OF TASTEFUL BREAD

Objective



The production of bread requires leavening of the dough. Before baker's yeast was available sourdough was the only biological leavening agent. Sourdough obtained from spontaneous fermentation of flour, water and salt was refreshed every day. The sensorial properties of such traditionally prepared sourdough bread are highly appreciated.

Given the diversity of strains of lactic acid bacteria and yeasts which has been already reported in sourdough the use of molecular taxonomy is required in order to avoid mis-identification and in order to obtain more clarity on metabolism in different environments. Starch, proteins, pentosans are the main components of flour. Hydrolysis of these macromolecules by enzymes provides substrates for the lactic acid bacteria and yeasts. This in turn leads to modification of the physico-chemical properties of the dough and determines the final quality of the bread. It is the aim of this proposal to study how the metabolism of pentosans polyfructosans and proteins can affect :

- the microbial ecology of sourdough;

- the physico-chemical properties and machinability of dough;

- the organoleptic quality and shelf life of bread;

- the preparation of starters.

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

GRADIENT - UNIVERSITE DE TECNOLOGIE DE COMPIEGNE
Address
B.p. 529
60206 Compiegne
France

Participants (7)

AGRICULTURAL UNIVERSITY OF ATHENS
Greece
Address
Iera Odos Str., 75
118 55 Athens - Votanikos
C.S.I.C.
Spain
Address
Poligono De La Coma, S/n
46980 Valencia
ERNST BÖCKER G.M.B.H.
Germany
Address
Ringstraße, 55 - 57
32378 Minden
GROUPE LIMAGRAIN - PAIN JACQUET BISCOTTE S.A.
France
Address
Rue Jean Mermoz, 10 - Z.i. St. Guenault
91000 Evry Courcouronnes
GROUPE LIMAGRAIN - ULICE
France
Address
Zac Les Portes De Riom - B.p. 173
63200 Riom
TECHNISCHE UNIVERSITÄT MÜNCHEN
Germany
Address

85350 Freising - Weihenstephan
UNIVERSITÄT HOHENHEIM
Germany
Address
Garbenstraße, 25
70599 Stuttgart