We present a review on the state-of-the-art of fruit prodution in Western Iberia woodlands («dehesas»), and particularly in Q. ilex (holm oak) «dehesas». This threatened ecosystem is of very high ecological and economical importance. Quercus sp. fruits (acorns) are essential for wildlife, and for pig fattening in «dehesas». In the first part of this review we briefly describe the phenology of t...

the acorn is an edible nut of oak trees (quercus spp.) that had been used for human nutrition for a long time. besides nutritious components, acorn contains considerable amounts of phenolic substances. at present study, two different varieties of iranian oak acorns, namely, q. branti var. persica (qb) and qcastaneifolia var. castaneifolia (qc) were used. the total polyphenol content measured in...

The effects of increased anthropogenic inputs of reactive nitrogen (N) have been studied at the Harvard Forest Chronic N Experiment, where NH4NO3 has been applied experimentally since 1988 to increase atmospheric deposition rates 6and 18-fold above ambient. This paper asks whether conditions favorable to primary production also resulted in plastic increases to flower, fruit, and seedling traits...

One of the characteristics of holm-oak acorn production is its high variability among individuals and years. To examine the main causes of this fact, a study was conducted from 1998-2010 in a natural area of holm-oak in southern Spain, where floral phenology, fruit production, fruit size, airborne pollen emission and meteorology factors were analyzed with the ultimate aim of developing a model ...

in this study, total phenolics and flavonoids content, antiradical and antimicrobial activity of methanolic extract of two iranian acorn varieties, namely quercus.castaneifolia var castaneifolia and quercus.branti var persica were evaluated. total phenolic and flavonoid content and extraction yield of methanolic extract of castaneifolia variety (mc) were significantly higher than that of the ex...

Trees in the beech or oak family (Fagaceae) have a mutualistic relationship with scatter-hoarding rodents. Rodents obtain nutrients and energy by consuming seeds, while providing seed dispersal for the tree by allowing some cached seeds to germinate. Seed predation and caching behavior of rodents is primarily affected by seed size, mechanical protection, macronutrient content, and chemical anti...

Various effects of acorn extract have been reported including antioxidant activity, cytotoxicity against cancer cells, and the levels of acetylcholine and its related enzyme activities in the dementia mouse models. However, it is unclear whether acorn extract inhibits glutamate-induced calcium signaling in hippocampal neurons. This study was an investigation into the effect of acorn extract on ...

Regarding the nutritional value and availability of acorns in west and southwest of Iran, the effects of partial substitution of wheat flour with acorn flour was investigated. Wheat flour was replaced by treated acorn flour in the formulation of sponge cake and the quality characteristics were evaluated. Density of cakes was increased with increasing the acorn flour. As the substitution degree ...