Dynamics of amino acid composition of pollen

Abstract

The major components of pollen are proteins and amino acids, lipids (fats, oils or their derivatives) and sugars. There are present all essential amino acids for human nutrition (fenilalanine, leucine, valine, isoleucine, arginine, histidine, lysine, methionine, threonine and tryptophan), proline is most abundant. At the bees families in April were installed at the bottom of the beehive the pollen collectors. Daily after 18 o’clock pollen was collected. From pollen collected during the month there were taken samples, which were dried at a temperature of 65. Dry pollen was crushed and then determined the amount of amino acids in each sample. Of total amino acids in pollen, the largest share is glutamic acid from 16.503 to 26.158 mg / g, proline 15.280 to 22.543 mg / g and asparagic acid 11.529 to 16.734 mg / g (Table 1). In small amounts were detected methionine from 0.495 to 1.614 mg / g and tryptophan from 1.281 to 2.962. The quantity of amino acids varies throughout the year and depends on the existing honey, a figure seen from the data that the maximum amount of amino acids in the pollen was collected from the lime, in June - 162 243 mg / g. Contains pollen from sunflower constituted approx. 121.100 mg / g of amino acids. Fruit tree pollen contains 143. 523 mg / g amino acids.