title: Comparative characterization of peanuts grown by aquatic floating cultivation and field cultivation for seed and resveratrol production.
abstract: Peanut pods (Tainan 12, a Spanish cultivar, Arachis hypogaea L.) have been obtained from peanuts grown in a newly developed aquatic floating cultivation system without artificial aeration or periodic renewal of the solution. The system provided a convenient status for examination of root and pod development. Compared to field-grown peanuts of the same cultivar, the aquatic-cultivated peanut pods and seeds were smaller, whereas seed/pod weight ratios, crude fat and protein contents, and SDS-PAGE protein patterns varied within similar ranges. During cultivation, the highest detected temperature of the aquatic solution was higher than the field-soil temperature. After gas chromatographic analysis of the fatty acid compositions, the oleic acid/linoleic acid ratio of the aquatic-cultivated seeds was higher than that of field-cultivated ones. When the peanut roots were collected, cleaned, dried, weighed, pulverized, and subjected to resveratrol analysis, dry root weights were 4.2 +/- 0.1 and 2.2 +/- 1.1 g/plant and resveratrol contents were 0.074 +/- 0.009 and 0.114 +/- 0.212 mg/g for the aquatic- and field-cultivated peanut roots, respectively. This indicates that the aquatic-cultivated peanut roots could be a potent and consistent source of resveratrol.
authors.affiliation: Department of Agronomy, Department of Food Science, and Graduate Institute of Biotechnology, National Chiayi University, Taiwan.
authors.forename: Chii-Dong
authors.initials: CD
authors.lastname: Liu
authors.forename: Yung-Yang
authors.initials: YY
authors.lastname: Wen
authors.forename: Ju-Min
authors.initials: JM
authors.lastname: Chiou
authors.forename: Kuo-Hsi
authors.initials: KH
authors.lastname: Wang
authors.forename: Robin Y-Y
authors.initials: RY
authors.lastname: Chiou
mesh_terms: D000383:Agriculture / Q000379:methods*; D010367:Arachis / Q000254:growth & development*; D000077185:Resveratrol; D012639:Seeds / Q000737:chemistry / Q000254:growth & development*; D012987:Soil; D013267:Stilbenes / Q000378:metabolism*; D013696:Temperature; D014867:Water
chemical_list: D012987:Soil; D013267:Stilbenes; D014867:Water; D000077185:Resveratrol