Next Article in Journal
A New Class of Synthetic Flavonolignan-Like Dimers: Still Few Molecules, but with Attractive Properties
Next Article in Special Issue
Metabolism and Biological Activities of 4-Methyl-Sterols
Previous Article in Journal
A Comparative Study of Molybdenum Carbonyl and Oxomolybdenum Derivatives Bearing 1,2,3-Triazole or 1,2,4-Triazole in Catalytic Olefin Epoxidation
Previous Article in Special Issue
Leishmanicidal Activity of Withanolides from Aureliana fasciculata var. fasciculata
Open AccessFeature PaperArticle

Phytosterol Composition of Arachis hypogaea Seeds from Different Maturity Classes

1
Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409, USA
2
Crop & Soil Sciences, University of Georgia, Tifton, GA 30602, USA
3
Biochemical Research Lab, Lubbock Christian University, Lubbock, TX 79407, USA
4
Department of Chemistry and Biochemistry, Lubbock Christian University, Lubbock, TX 79407, USA
*
Author to whom correspondence should be addressed.
Molecules 2019, 24(1), 106; https://doi.org/10.3390/molecules24010106
Received: 5 November 2018 / Revised: 17 December 2018 / Accepted: 20 December 2018 / Published: 29 December 2018
The seeds of cultivated peanut, Arachis hypogaea, are an agronomically important crop produced for human nutrition, oilseed and feed stock. Peanut seed is the single most expensive variable input cost and thus producers require seed with excellent performance in terms of germination efficiency. During the maturation process, triglycerides are stored in oil bodies as an energy resource during germination and seedling development. The stability of oil body membranes is essential for nutrient mobilization during germination. This study focused on evaluating the phytosterol composition in seed components including the kernel, embryo (heart), and seed coat or skin. Samples of different maturity classes were analyzed for macronutrient and phytosterol content. The three biosynthetic end products in the phytosterol pathway, β-sitosterol, campesterol and stigmasterol, comprised 82.29%, 86.39% and 94.25% of seed hearts, kernels and seed coats, respectively. Stigmasterol concentration was highest in the seed kernel, providing an excellent source of this sterol known to have beneficial effects on human health. Peanut hearts contained the highest concentration of sterols by mass, potentially providing protection and resources for the developing seedling. The amount of α-tocopherol increases in peanut hearts during the maturation process, providing protection from temperature stress, as well as stability required for seedling vigor. These results suggest that phytosterols may play a significant role in the performance of seeds, and provide a possible explanation for the poor germination efficiency of immature seeds. View Full-Text
Keywords: phytosterols; mesocarp; oilseed; maturity; pod-blast; α-tocopherol; oil bodies; campesterol; stigmasterol; β-sitosterol phytosterols; mesocarp; oilseed; maturity; pod-blast; α-tocopherol; oil bodies; campesterol; stigmasterol; β-sitosterol
Show Figures

Figure 1

MDPI and ACS Style

Zhou, W.; Branch, W.D.; Gilliam, L.; Marshall, J.A. Phytosterol Composition of Arachis hypogaea Seeds from Different Maturity Classes. Molecules 2019, 24, 106.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop