Nuclear magnetic resonance analysis of water soluble metabolites allows the geographic discrimination of pistachios (Pistacia vera)
Aqueous extracts of roasted pistachio (Pistacia vera) from different geographic origin were analyzed by 1H nuclear magnetic resonance (NMR) spectroscopy. Forty-eight water-soluble metabolites, classified in organic acids, amino acids, carbohydrates and miscellaneous metabolites, were identified by means of 1D and 2D NMR experiments, and twenty-eight of them were quantified. The different metabolite contents highlighted that […]
Mycobiota, aflatoxins and cyclopiazonic acid in stored peanut cultivars
This study evaluated the presence of fungi and mycotoxins [aflatoxins (AFs), cyclopiazonic acid (CPA), and aspergillic acid] in stored samples of peanut of cultivars Runner IAC Caiapó and cultivar Runner IAC 886 during 6 months. A total of 70 pod and 70 kernel samples were directly seeding onto Aspergillus flavus and parasiticus agar for fungi […]
In-vitro evaluation of the availability of ϖ-3 and ϖ-6 fatty acids and tocopherols from microencapsulated walnut oil.
Among the nuts, walnut is characterized by its important amount of oil (60–65% of flesh weight). The oil extracted from walnut exhibits high contents of polyunsaturated fatty acids ϖ-6 (linoleic acid) and ϖ-3 (linolenic acid), as well as relevant amounts of tocopherols (vitamin E). However, the addition of this type of oil in processed food […]
Effect of processing on the drying kinetics and functional value of dried apricot
Apricots can be considered as a good source of phenolic compounds; which are beneficial for human health. Microwaves may be an alternative to the conventional sun or hot air drying techniques used to obtain dried apricot. Nevertheless; their impact on the functional compounds must be taken into account if they are to be recommended as […]
Application of emerging technologies to control Salmonella in foods: A review
Salmonella is one of the major causes of foodborne illnesses in United States and many other parts of the world. The ubiquitous nature of the organisms and innumerous serotypes present in various foods make it challenging for researchers to strive for its elimination. In the past decade; various novel technologies have emerged with great potential […]
Further mycotoxin effects from climate change
Climate change will affect mycotoxins in food. The 2007 Intergovernmental Panel on Climate Change report is reinterpreted herein to account for what may occur with mycotoxins. Warmer weather; heat waves; greater precipitation and drought will have various impacts; depending on which regions of the world and mycotoxin systems are considered. The humidity issues are more […]
Risk of salmonellosis from consumption of almonds in the North American market
Salmonellosis outbreaks from consumption of raw almonds in 2001 and 2004 led to regulations that require mandatory treatment of almonds sold in North America to give a minimum 4-log reduction of Salmonella. This study aims to: 1) assess the risk of salmonellosis associated with almond consumption in North America; with current treatments in effect; 2) […]
Survival of Salmonella Enteritidis PT 30 on inoculated almond kernels in hot water treatments.
Almonds are blanched by exposure to hot water or steam-injected water to remove the pellicle (skin) from the kernel. This study evaluated the survival of Salmonella Enteritidis PT 30; Salmonella Senftenberg 775 W and Enterococcus faecalis on whole raw almond kernels exposed to hot water. Whole; inoculated (7 to 9 log CFU/g) Nonpareil almonds (40 […]
Native Australian fruit polyphenols inhibit COX-2 and iNOS expression in LPS-activated murine macrophages
Purified polyphenolic-rich extracts from four native Australian fruits; Illawarra Plum (Podocarpus elatus Endl.; Podocarpaceae); Kakadu Plum (Terminalia ferdinandiana Exell; Combretaceae); Muntries (Kunzea pomifera F. Muell.; Myrtaceae) and Native Currant (Acrotriche depressa R.Br.; Epacridaceae); were screened for their ability to modulate anti-inflammatory activity in LPS-activated murine macrophages (RAW 264.7). The Kakadu Plum extract inhibited the expression […]
The effect of genotype and roasting on the fatty acid composition of peanuts.
The impact of two factors; genotype (G) and treatment (raw or roasted peanut) (T); on the chemical composition of peanuts was studied using a chemometric method and Tukey's test. The peanut genotypes evaluated were cultivar cavalo vermelho (CCV); cultivar cavalo rosa (CCR) and cultivar tatu (CTA); in both raw and roasted states. The total lipid […]