Abstract: Process for the production of starter cultures for the production of dairy products having predetermined properties, wherein the starter cultures are treated with pulsed electric fields (PEF) of rectangular monopolar high voltage pulses of a field strength of 0.2 to 1 kV/cm with a pulse duration of 5 to 8 ?s at a frequency of 1 to 21 Hz for 20 to 80 pulses, for each parameter respectively ±15% or ±10% or ±5%.

Abstract: The present invention relates to anti-contaminant composition comprising a cell-free fermentation product of one or more Bacillus subtilis strains (e.g., selected from the group consisting of: 22C-P1, 15A-P4, 3A-P4, LSSA01, ABP278, BS 2084 and BS 18); wherein said fermentation product comprises one or more compounds selected from the group consisting of: a lipopeptide, a polyketide, a bacillibactin, a bacilysin, an anticapsin, a plantazolicin, a LCI, a homologue of a plantazolicin and a homologue of a LCI. In addition, the present invention further relates to methods of preparing the compositions, methods of using the composition, products comprising the composition and uses thereof.