Pollen provides floral visitors with essential nutrients including proteins, lipids, vitamins and
minerals. As an important nutrient resource for pollinators, including honeybees and
bumblebees, pollen quality is of growing interest in assessing available nutrition to foraging
bees. To date, quantifying the protein‐bound amino acids in pollen has been difficult and
methods rely on large amounts of pollen, typically more than 1 g. More usual is to estimate a
crude protein value based on the nitrogen content of pollen, however, such methods provide …