Analysis and quantification of naturally occurring aflatoxin B1 in dry fruits with subsequent physical and biological detoxification.
Current research involves extraction, identification and detoxification of mycotoxins from ten dry fruit samples. Mycotoxins were identified by high performance thin layer chromatography followed by physical and biological detoxification, analysed by HPLC. Three fungal species were observed after isolation including, Aspergillus niger, Aspergillus flavus and Fussarium sp. HP-TLC analysis revealed the presence of mycotoxin, aflatoxin B1 ranging from 0.000303-0.03636 […]
In vitro activity and formulation of a flavonoid-containing cashew pulp extract for the topical treatment of acne and the protection of skin against premature aging.
The cashew nut is an important product in Brazil, both for consumption and export, with the pulp of the cashew fruit being considered a by-product despite its high flavonoid content. In this study, the use of cashew pulp extract as a treatment for acne and in the prevention of early skin damage was investigated. Its […]
Antibacterial and anti-biofilm activities of walnut pellicle extract (Juglans regia L.) against coagulase-negative staphylococci.
Juglans regia L. (common walnut) is a deciduous tree belonging to Juglandaceae family. Since ancient time, walnut was widely used in traditional medicine for its antioxidant, antidiabetic, antimicrobial, anti-inflammatory, anti-atherogenic and liver-protective effects. In this work, the antibacterial and anti-biofilm activities of walnuts pellicle extract against coagulase-negative staphylococci were evaluated. Qualitative chemical analysis was performed by the thin layer […]
Health benefits of pistachios consumption.
The health benefits of nuts, mainly in relation to the improvement of dysmetabolic conditions such as obesity, type 2 diabetes mellitus and the related cardiovascular diseases, have been widely demonstrated. Compared to other nuts, pistachios have a lower fat and caloric content, and contain the highest levels of unsaturated fatty acids, potassium, γ-tocopherol, phytosterols and […]
Gamma irradiation affects the total phenol, anthocyanin and antioxidant properties in three different persian pistachio nuts.
The effects of gamma irradiation (GR) on total phenol, anthocyanin and antioxidant activity were investigated in three different Persian pistachio nuts at doses of 0, 1, 2 and 4 kGy. The antioxidant activity, as determined by FRAP and DPPH methods, revealed a significant increase in the 1-2 kGy dose range. Total phenol content (TPC) revealed […]
Discrimination of almonds (Prunus dulcis) geographical origin by minerals and fatty acids profiling.
Twenty-one almond samples from three different geographical origins (Sicily, Spain and California) were investigated by determining minerals and fatty acids compositions. Data were used to discriminate by chemometry almond origin by linear discriminant analysis. With respect to previous PCA profiling studies, this work provides a simpler analytical protocol for the identification of almonds geographical origin. […]
Fatty acids determination in Bronte pistachios by gas chromatographic method.
A gas chromatographic with flame ionization detector (GC-MS FID) method for the identification and quantification of fatty acids based on the extraction of lipids and derivatisation of free acids to form methyl esters was developed and validated. The proposed method was evaluated to a number of standard FAs, and Bronte pistachios samples were used for […]