Comparative Characterization of Peanuts Grown by Aquatic Floating Cultivation and Field Cultivation for Seed and Resveratrol Production

• Published in: Journal of agricultural and food chemistry Vol. 51; no. 6; pp. 1582 - 1585
• Main Authors: Liu, Chii-Dong, Wen, Yung-Yang, Chiou, Ju-Min, Wang, Kuo-Hsi, Chiou, Robin Y.-Y
• Format: Journal Article
• Language: English
• Published: Washington, DC American Chemical Society 12.03.2003
• Subjects: Agriculture - methods; Agronomy. Soil science and plant productions; Arachis - growth & development; Arachis hypogaea; Biological and medical sciences; cultivars; fatty acid composition; Fundamental and applied biological sciences. Psychology; gas chromatography; General agronomy. Plant production; linoleic acid; oleic acid; peanuts; pods; polyacrylamide gel electrophoresis; resveratrol; roots; seeds; Seeds - chemistry; Seeds - growth & development; Soil; Soilless cultures. Co2 fertilization; Soilless cultures. Protected cultivation; Stilbenes - metabolism; Temperature; Water; Peanut; Field crop; Nuts; fatty acid composition; Arachis hypogaea; aquatic floating cultivation; Lipids; Floating installation; Arachis hypogaea L; Fatty acids; Characterization; Aquatic environment; SDS-PAGE; peanut roots; Leguminosae; Dicotyledones; Angiospermae; Resveratrol; Spermatophyta; Chemical composition; Comparative study; Oil plant (vegetal)
• ISSN: 0021-8561; 1520-5118
• DOI: 10.1021/jf025963r

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. Keywords: Arachis hypogaea L.; aquatic floating cultivation; peanut roots; resveratrol; SDS-PAGE; fatty acid composition