Effect of harvest season on the nutritional value of bee pollen protein.

Autor: Al-Kahtani SN; Arid Land Agriculture Department, College of Agricultural Sciences & Foods, King Faisal University, Al-Ahsa, Saudi Arabia., Taha EK; Arid Land Agriculture Department, College of Agricultural Sciences & Foods, King Faisal University, Al-Ahsa, Saudi Arabia.; Faculty of Agriculture, Economic Entomology Department, Kafrelsheikh University, Kafrelsheikh, Egypt., Khan KA; Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha, Saudi Arabia.; Faculty of Science, Unit of Bee Research and Honey Production, King Khalid University, Abha, Saudi Arabia.; Faculty of Science, Biology Department, King Khalid University, Abha, Saudi Arabia., Ansari MJ; Department of Botany, Hindu College Moradabad, Moradabad, Uttar Pradesh, India., Farag SA; Faculty of Agriculture, Department of Animal and Poultry Production, University of Tanta, Tanta, Egypt., Shawer DMB; Faculty of Agriculture, Economic Entomology Department, Kafrelsheikh University, Kafrelsheikh, Egypt., Elnabawy EM; Faculty of Agriculture, Department of Animal and Poultry Production, University of Tanta, Tanta, Egypt.
Jazyk: angličtina
Zdroj: PloS one [PLoS One] 2020 Dec 28; Vol. 15 (12), pp. e0241393. Date of Electronic Publication: 2020 Dec 28 (Print Publication: 2020).
DOI: 10.1371/journal.pone.0241393
Abstrakt: Bee pollen is a natural product that has valuable nutritional and medicinal characteristics and has recently garnered increasing attention in the food industry due to its nutritive value. Here, we harvested pollen loads from the Al-Ahsa oasis in eastern Saudi Arabia during spring, summer, autumn, and winter in 2018/2019 to compare the nutritional value of bee pollen protein with the amino acid requirements of honeybees and adult humans. Based on the nutritional value of bee pollen protein, the optimal season for harvesting bee pollen was determined. The composition of the bee pollen showed the highest contents of crude protein, total amino acids, leucine, glutamic acid, valine, isoleucine, threonine, and glycine in samples collected in spring. The highest contents of lysine, phenylalanine, threonine, tryptophan, arginine, tyrosine, and cysteine were observed in samples collected in winter. The highest contents of histidine, methionine, and serine were in samples collected in autumn. Moreover, the highest levels of aspartic acid, proline, and alanine were in samples collected in summer. Leucine, valine, lysine, histidine, threonine, and phenylalanine (except in autumn bee pollen) contents in pollen from all four seasons were above the requirements of honeybees. Leucine, valine, histidine, isoleucine (except in autumn bee pollen), lysine (except in spring and summer bee pollen), and threonine (except in winter and spring bee pollen) in all tested samples were above the requirements of adult humans. In comparison with the minimal amino acid requirements of adult humans and honeybees, the 1st limiting amino acid in bee pollen collected during the different seasons was methionine. Bee pollen collected during spring (March-May) and winter (December-February) can be considered a nutritive food source for adult humans and honeybees.
Competing Interests: The authors have declared that no competing interests exist.
Databáze: MEDLINE
Externí odkaz:
Nepřihlášeným uživatelům se plný text nezobrazuje