106(4)_str48

ISSN 1392-3196 / e-ISSN 2335-8947
Zemdirbyste-Agriculture, vol. 106, No. 4 (2019), p. 377–382
DOI 10.13080/z-a.2019.106.048

Mycobiota in bee pollen collected by different types of traps

 Jolanta SINKEVIČIENĖ, Algirdas AMŠIEJUS

Abstract

The aim of this study was to determine the impact of different types of bee pollen traps on the microbiological contamination of pollen influenced by the duration of pollen retention in traps. A total of 96 bee pollen samples were analyzed. The total count of microorganisms in the bee pollen during the study period varied from 4.5 to 19.3 × 10³ cfu g^-1. Moisture content in the pollen was optimal for the growth and proliferation of microorganisms. In the pollen, the following most common 7 genera of fungi were found: Penicillium, Fusarium, Alternaria, Acremonium, Cladosporium, Mucor and Rhizopus. A study of the mycobiota of pollen collected from four different traps showed that the total number of microorganisms varied depending on the type of trap and pollen retention period. The pollen collected after 9 hours retention in traps was less contaminated with the microorganisms than that collected after 24 and 48 hours. The count of mycobiota was the lowest (4.5 × 10³ cfu g^-1) in the pollen sampled after 9 hours retention from high-bottom traps compared to other types of traps. The highest contamination (19.3 × 10³ cfu g^-1) of fresh bee pollen was found after 48 hours in traps with thermo chambers. Fungal contamination was the higest in the bee pollen collected by traps mounted at hive entrance after 9 and 48 hours, respectively 124 and 150 units. The Penicillium fungi dominated the pollen in traps with thermo chambers, Fusarium – in low-bottom, Alternaria – in the pollen of traps mounted at beehive entrance.

 Key words: bee pollen, contamination, fungi, microorganisms, traps.

Full text: 106_4_str48.pdf