Produção Nacional
Revisado por pares
Environmental and Genetic Variation of Soybean Tocopherol Content Under Brazilian Growing Conditions
2007; Wiley; Volume: 84; Issue: 10 Linguagem: Inglês
10.1007/s11746-007-1128-3
ISSN1558-9331
AutoresM. C. Carrão-Panizzi, Sevim Z. Erhan,
Tópico(s)Phytoestrogen effects and research
ResumoAbstract Information about the chemical composition of soybean cultivars (cvs) and environmental impact on their composition is important for processors and exporters to meet the demand of niche markets. Tocopherol composition (α, β, γ, δ, and total), was analyzed in seeds of 89 Brazilian soybean cultivars grown under fertile soil in Ponta Grossa, Paraná state, Brazil, in 2001. A large range of variability was observed: for α‐tocopherol, 11 ppm (cv. Davis) to 191 ppm (cv. IPB‐T); for β‐tocopherol, 6 ppm (cv. IAC 1) to 64 ppm (cv. IPB‐T); for γ‐tocopherol, 304 ppm (BR62 Carla) to 1333 ppm (cv. Bienville); for δ‐tocopherol, 174 ppm (cv. UFV 15) to 580 ppm (cv.IAS‐5; and for total tocopherols, 561 ppm (cv. BRS62 Carla) to 1,983 ppm (cv. BR4‐RC). For comparison of different growing locations, cv. MG/BR 46 Conquista was grown in 16 different locations of the Minas Gerais and Goiás states (Central Region, ca. 17° South latitude). Higher content of total tocopherol was found in Conquista, Uberaba, Sacramento, and Cerrado, while lower contents were observed in Alvorada, Iraí, and Uberlândia. In the South region (ca. 23° South latitude), the cultivar IAS 5, grown in 12 different locations of Paraná and São Paulo states, showed high total tocopherol content in Londrina, Pedrinhas, Ponta Grossa, and Nuporanga, and lower amounts in Cascavel, Pirassununga, Luiziana, and Morro Agudo. Tocopherol content in soybean seeds varied due to genetic differences as well as to the local environmental factors of different growing locations.
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