Effect of roasting conditions on color and volatile profile including HMF level in sweet almonds (Prunus dulcis).
Microwave, oven, and oil roasting of almonds were used to promote almond flavor and color formation. Raw pasteurized almonds were roasted in a microwave for 1 to 3 min, in an oven at 177 °C for 5, 10, 15, and 20 min; and at 135 and 163 °C for 20 min, and in oil at […]
Optimization of a headspace SPME GC–MS methodology for the analysis of processed almond beverages.
Optimization of a headspace–solid phase microextraction (HS-SPME) technique for analyzing the volatile profile of almond beverages was performed. An ultra-high temperature (UHT)-treated almond beverage prepared at the pilot plant was used as a model for this kind of vegetable beverage. For the analysis a 2-mL almond beverage, aliquot was used in the presence of salt […]
Survival and Thermal Resistance of Salmonella Enteritidis PT 30 on Almonds after Long-Term Storage.
Salmonella survival and thermal resistance on the surface of almond kernels were evaluated after periods of storage. Almond kernels were inoculated with Salmonella enteritidis PT 30 and equilibrated to 0.45 water activity. Samples were separated into two groups (I and II) and stored in sealed metal cans at room temperature. Group I samples (stored 7, […]
The Effects of Nut Consumption on Vascular Function.
Vascular stiffness can be measured using numerous techniques including assessments of central haemodynamics, aortic arterial stiffness, and indices of aortic wave reflection and endothelial dilatation. Impaired vascular function is associated with increased risk of cardiovascular disease (CVD). Epidemiological studies indicate that regular nut consumption reduces CVD risk, with one of the proposed mechanisms being via […]
Comparison of amygdalin and benzaldehyde levels in California almond (Prunus dulcis) varietals.
Almonds (Prunus dulcis), are characterized into three flavor phenotypes: bitter, semi-bitter and sweet. Amygdalin is a cyanogenic diglucoside responsible for bitterness in almonds. Studies have shown that amygdalin can hydrolyze to release benzaldehyde, which is the key component of almond aroma. In this study, the amygdalin and benzaldehyde content of fourteen sweet cultivars of almonds […]
Identification of almond (Prunus dulcis) vicilin as a food allergen.
Almond is one of the tree nuts listed by US FDA as a food allergen source. A food allergen identified with patient sera has been debated to be the 2S albumin or the 7S vicilin. However, neither of these proteins has been defined as a food allergen. The purpose of this study was to clone, […]
Effect of nut consumption on semen quality and functionality in healthy men consuming a Western-style diet: a randomized controlled trial.
BACKGROUND: Human semen quality has declined in industrialized countries. Pollution, smoking, and the consumption of a Western-style diet are all hypothesized as potential causes. OBJECTIVE: We evaluated the effect of chronic consumption of nuts on changes in conventional semen parameters and the potential mechanisms implicated. DESIGN: The FERTINUTS study was a 14-wk randomized, controlled, parallel […]
Heat and Pressure Treatments on Almond Protein Stability and Change in Immunoreactivity after Simulated Human Digestion.
Almond is consumed worldwide and renowned as a valuable healthy food. Despite this, it is also a potent source of allergenic proteins that can trigger several mild to life-threatening immunoreactions. Food processing proved to alter biochemical characteristics of proteins, thus affecting the respective allergenicity. In this paper, we investigated the effect of autoclaving, preceded or […]
Multistage treatment of almonds waste biomass: Characterization and assessment of the potential applications of raw material and products.
Almond shells are waste biomass generated in agro-industrial activities, which represent a resource that can be further valorized upon treatment. The purpose of this work was to assess new value-added products obtained through a novel multi-stage delignification process of almond shells. A comprehensive chemical characterization of the raw materials and products involved in each stage […]
Almond Allergy: An Overview on Prevalence, Thresholds, Regulations and Allergen Detection.
Food allergy has been on the increase for many years. The prevalence of allergy to different foods varies widely depending on type of food, frequency of consumption and geographic location. Data from the literature suggests that the prevalence of tree nut allergy is of the order of 1% in the general population. Almond is one […]