DOI: 10.11118/978-80-7701-093-1-0086

EFFICASY STUDY OF PRESERVATIVE CONTAINING PROPIONIc ACID, SODIUM BENZOATE AND SODIUM PROPIONATE (1A700) FOR CONTROLLING MOULDS IN DIFFERENT MOIST GRAINS

Milimonka, A.¹, Petkute, E.¹

¹ Addcon GmbH, Parsevalstraße 6, 06749 Bitterfeld-Wolfen, Germany$1

One of the principal challenges in preserving high-moisture grains is the extensive development of moulds, which significantly compromises storage stability. This study investigated the efficacy of the feed additive 1a700 containing propionic acid, sodium benzoate and sodium propionate (commercial product: KofaGrain pH5) in controlling mould growth in moist wheat, barley, and maize during extended storage. Wheat, barley, and maize obtained from commercial farms were adjusted to defined moisture levels and treated with different application rates of 1a700 and with water for a control. Treated and untreated grains were stored under controlled conditions at 25 °C and analysed after 6, 12, and up to 24 months of storage. Mould counts were determined according to VDLUFA methods at multiple storage intervals (VDLUFA, 2012). Untreated controls showed a strong, time-dependent increase in mould contamination, frequently exceeding 10⁶ CFU/g. In contrast, 1a700 significantly reduced mould development in all grain types and at all storage periods (p = 0.05). Higher application rates consistently resulted in greater mould reduction, demonstrating a clear dose–response effect. The results confirm that 1a700 is an effective preservative for improving the storage stability of moist grains under conditions unsuitable for long-term storage.

Keywords: high-moisture grains, moulds, preservation, feed additive 1a700

pages: 86-87, Published: 2026, online: 2026