Phytosterol composition of Arachis hypogaea seeds from different maturity classes

Simple item page
dc.creatorZhou, Wenxu (TTU)
dc.creatorBranch, William D.
dc.creatorGilliam, Lissa
dc.creatorMarshall, Julie A.
dc.date.accessioned2023-03-31T15:00:57Z
dc.date.available2023-03-31T15:00:57Z
dc.date.issued2019
dc.description© 2018 by the authors. cc-by
dc.description.abstractThe 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 κ-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.
dc.identifier.citationZhou, W., Branch, W.D., Gilliam, L., & Marshall, J.A.. 2019. Phytosterol composition of Arachis hypogaea seeds from different maturity classes. Molecules, 24(1). https://doi.org/10.3390/molecules24010106
dc.identifier.urihttps://doi.org/10.3390/molecules24010106
dc.identifier.urihttps://hdl.handle.net/2346/92236
dc.language.isoeng
dc.subjectCampesterol
dc.subjectMaturity
dc.subjectMesocarp
dc.subjectOil bodies
dc.subjectOilseed
dc.subjectPhytosterols
dc.subjectPod-blast
dc.subjectStigmasterol
dc.subjectα-tocopherol
dc.subjectβ-sitosterol
dc.titlePhytosterol composition of Arachis hypogaea seeds from different maturity classes
dc.typeArticle

Files

Original bundle

Now showing 1 - 1 of 1
Thumbnail Image
Name:
Main article with TTU Libraries cover page.pdf
Size:
856.81 KB
Format:
Adobe Portable Document Format
Download

Collections

Faculty Research