Lipid composition of oat grain grown in Latvia
2014
Sterna, V., State Stende Cereals Breeding Inst., „Dižzemes”, Dižstende, Lībagi parish, Talsi County (Latvia). Dept. of Agro-Ecological Research | Zute, S., State Stende Cereals Breeding Inst., „Dižzemes”, Dižstende, Lībagi parish, Talsi County (Latvia). Dept. of Cereal Breeding | Brunava, L., State Stende Cereals Breeding Inst., „Dižzemes”, Dižstende, Lībagi parish, Talsi County (Latvia). Dept. of Agro-Ecological Research | Vicupe, Z., State Stende Cereals Breeding Inst., „Dižzemes”, Dižstende, Lībagi parish, Talsi County (Latvia). Dept. of Cereal Breeding
Oat (Avena sativa L.) is a well known annual crop in temperate climates. It is recognised as a healthy food containing significant amounts of fat-soluble vitamin E and polyunsaturated fatty acids in the world. There are few investigations of lipid composition in connection with human health in Latvia. Therefore the aim of this study was to characterize the composition of lipids of same oat varieties to grown in Latvian condition. Investigations were performed at the State Stende Cereal Breeding Institute. In the studied samples content of fat, composition of fatty acids and vitamin E (α-tocopherol) were determined, same as ratio most significant for human health like PUFA/SFA and ω-3/ ω-6 were calculate. The total fat was made by Soxlet method, fatty acids by LVS CEN ISO/TS 17764-1:2007 and content α-tocopherol determination was made using high-performance liquid-chromatography. The high concentration was determined as mg kg dry matter. The obtained results showed a wide range of fat content among varieties; it varied from 4.9 to 10.5 g 100 gE-1. The content of α-tocopherol in oat grain was determined 8.5–12.3 mg kgE-1, and the sum of unsaturated fatty acids accounted 78–81.5% of total fatty acids content. The ratio P/S varied from 2.2 to 2.4. Result of evaluation leads to conclusion that lipid of oat grain are rich with biologically significant substances.
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