Submitted to: United States Japan Natural Resources Protein Panel
Publication Type: Abstract Only
Publication Acceptance Date: 12/20/2002
Publication Date: 12/20/2002
Citation: PANIZZI, M., ERHAN, S.Z. CHEMICAL COMPOSITION OF SPECIALTY SOYBEAN GENOTYPES. UNITED STATES JAPAN NATURAL RESOURCES PROTEIN PANEL. 2002. Abstract. p.UU-1.
Technical Abstract: At the National Center for Soybean Research at EMBRAPA (Brazilian Agricultural Research Corporation), efforts are being done to increase soybean consumption in Brazil. Through the breeding of specialty soybean cultivars, BRS 155, which has reduced content of a trypsin inhibitor; BRS 213, which is null for lipoxygenases (enzymes responsible for the bad taste), and BRS 216, which is used for natto production, due to its small seed size (10g/100 seeds), were released. These cultivars are indicated for special markets, mainly for organic growers, which are demanding for specialty soybeans. Cultivar BRS 216 presents high protein (44%), high isoflavone (260mg/100g), and high carbohydrate (24%) content. Cultivar BRS 213 has average protein concentration (39.7%), and because of absence of lipoxygenases this cultivar is suitable for soymilk production. Analyses of soybean fatty acids concentrations are 10.7 palmitic, 3.4 stearic, 21.3 oleic, 56.4 linoleic and 8.2 linolenic for the conventional soybean cultivar sowed in Brasilia (Central Region); and 9.3 palmitic, 3.1 stearic, 33.8 oleic, 48.3 linoleic and 5.5 linolenic when sowed in Balsas (Northeast Region), respectively. The overall mean of protein and oil content of the cultivars sowed in Northeast, Central and South Regions, suggested that the highest protein development (51.1%) occurred in the Northeast Region, followed by the South Region (47.0%). The Northeast Region also showed the highest oil content (21.21%) when compared to the South and Central Regions.