The Lipid-Soluble Bioactive Substances of <i>Fagopyrum esculentum</i> Varieties under Different Tillage and Nitrogen Fertilisation
Krzysztof Dziedzic,
Szymon Kurek,
Grażyna Podolska,
Sławomira Drzymała-Czyż,
Sylwia Mildner-Szkudlarz,
Wei Sun,
Jarosław Walkowiak
Affiliations
Krzysztof Dziedzic
Department of Food Technology of Plant Origin, Poznań University of Life Sciences, Wojska Polskiego 28, 60-637 Poznań, Poland
Szymon Kurek
Department of Pediatric Gastroenterology and Metabolic Diseases, Institute of Pediatrics, Poznan University of Medical Sciences, Szpitalna 27/33, 60-572 Poznań, Poland
Grażyna Podolska
Institute of Soil Science and Plant Cultivation State Research Institute, Czartoryskich 8, 24-100 Puławy, Poland
Sławomira Drzymała-Czyż
Department of Bromatology, Faculty of Pharmacy, Poznan University of Medical Sciences, Rokietnicka 3, 60-806 Poznań, Poland
Sylwia Mildner-Szkudlarz
Department of Food Technology of Plant Origin, Poznań University of Life Sciences, Wojska Polskiego 28, 60-637 Poznań, Poland
Wei Sun
Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
Jarosław Walkowiak
Department of Pediatric Gastroenterology and Metabolic Diseases, Institute of Pediatrics, Poznan University of Medical Sciences, Szpitalna 27/33, 60-572 Poznań, Poland
Yield and grain composition play an important role in food production. The aim of this study was to determine the content of phytosterols, squalene, and tocopherols in four varieties of common buckwheat grains: Kora, Panda, Smuga, and Korona depending on the tillage and nitrogen doses employed. The grains were cultivated at the Experimental Station of the State Research Institute of Soil Science and Plant Cultivation in Osiny, Poland, with plow tillage, without plow tillage cultivation, and with nitrogen fertilizers (0, 50, and 100 kg N2 ha−1). Gas chromatography with a mass spectrometer was used to assess all the parameters studied. The cultivation methods did not affect the levels of phytosterols, tocopherols, and squalene, but the highest levels of phytosterols were seen in the Kora variety with 50 kg N2 ha−1 (ranging from 1198 μg to 1800 μg·g−1 of sample weight); therefore, the variety was the best source of phytosterols investigated.
