8 documents found, page 1 of 1

Exploring acorn shells: Phenolic composition and bioactive potential for sustai...

Pedunculate (Quercus robur L.), holm (Quercus rotundifolia Lam.), and cork (Quercus suber L.) oaks are abundant across the Portuguese landscape. This study aims to evaluate the phenolic composition and bioactivities of acorn shell samples and determine their potential as a functional compound source. In total, five acorn shell samples collected in different locations and from different species were analyzed: Q....

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Valorization of Quercus rotundifolia acorn kernel and shell towards innovative ...

Introduction: Acorns, the fruit of oak trees, are abundantly produced in 36% of Portuguese forest area; however, this fruit is greatly underutilized, with only 1% being used for human nutrition. As Portugal is a gross importer of food, it is highly important to valorize this resource given its proven nutritional value. The sustainable production, gluten-free and nutritious value associated to this raw-material ...

Exploring the potential of quercus robur kernel and shell for novel food applic...

Introduction: Acorns are produced in abundance across Portugal, yet remain largely underutilized, with only 1% being currently incorporated into human diets. However, acorns, as a sustainable, gluten-free, and nutrient-rich raw material, align with current consumer trends. Additionally, acorn by-products present significant potential as sources of bioactive ingredients, offering opportunities to enhance food ut...

Valorizing acorn byproducts: exploring health-promoting bioactive compounds and...

Introduction: Food shortages and waste management have become major global issues. Thus, agrifood and natural resources upcycling has been used as a novel strategy towards sustainability and circular economy. In Portugal, acorns (Quercus spp.) are produced abundantly; however, about 55% is left on the fields, leading to a significant resource loss. Acorn kernels from Quercus rotundifolia are especially rich in ...

The value of acorn byproducts: exploring novel ingredients and nutritional bene...

Introduction: In Portugal, acorns (Quercus spp.) are highly abundant, with an annual production of approximately 401,585 tonnes. Yet, about 55% remains in fields, leading to the waste of this biomass1. However, acorn byproducts are a novel source of bioactive compounds, offering a solution for reducing food waste, supporting sustainability, and delivering valuable nutritional benefits and health-promoting prope...

Acorn flours: a novel source of bioactives and nutritional benefits

Introduction: In Portugal, acorns (Quercus spp.) are highly abundant, being produced around 401,585 tonnes annually. Yet, about 55% remains in fields, leading to the waste of this biomass and promoting potential environmental issues (e.g. soil degradation) (Castro et al., 2022, Zhou and Wang, 2020). This challenge is further exacerbated by the increasing global population, which exerts mounting pressure on our ...

Effects of different treatments on the phenolic composition of acorn extracts f...

The European oak (Quercus robur L.) and the holm oak (Quercus rotundifolia Lam.) are two examples of endemic species that already contribute for the socio-economic development of the Iberian Peninsula. The first one stands out because of its wood, and the second one has been traditionally managed as savannah-like ecosystems for livestock breeding [1]. However, from a chemical perspective, the potential of these...