Non-Targeted Detection of Adulterants in Almond Powder Using Spectroscopic Techniques Combined with Chemometrics.
Methods that combine targeted techniques and chemometrics for analyzing food authenticity can only facilitate the detection of predefined or known adulterants, while unknown adulterants cannot be detected using such methods. Therefore, the non-targeted detection of adulterants in food products is currently in great demand. In this study, FT-IR and FT-NIR spectroscopic techniques were used in […]
Growth and survival of foodborne pathogens during soaking and drying of almond (Prunus dulcis) kernels.
The practice of soaking almonds prior to consumption is popular both commercially and at home. The food safety implications of soaking almonds was investigated through analysis of blogs and videos (n = 85 recipes) to identify both the reasons for soaking almonds and the common practices employed. Among the recipes analyzed, the most common reasons […]
Redomesticating almond to meet emerging food safety needs.
Almond is a desirable and high-quality food source where the presence of nut allergens and a vulnerability to aflatoxin and Salmonella contamination represent threats to consumer safety. In 2019, over 1 billion kg. of almonds, representing over 80% of the world total, were produced in California from a relatively few varieties with a very narrow […]
Effects of deficit irrigation, rootstock, and roasting on the contents of fatty acids, phytoprostanes, and phytofurans in pistachio kernels.
Pistachio (Pistacia vera L.) is a drought-tolerant specie grown under the semiarid conditions of the Mediterranean basin. For this reason, it is essential to make an exhaustive quantification of yield and quality benefits of the kernels because the regulated deficit irrigation will allow significant water savings with a minimum impact on yield, while improving kernel […]
Oil quality of pistachios (Pistacia vera L.) grown in East Azarbaijan, Iran.
Pistachio nut as a strategic product has a special place from nutritional and economical points of view. Its quality can be affected by variety, growing origin and climate. In the present study, the chemical composition of pistachio nuts harvested from different parts of East Azarbaijan province in Iran (Jolfa, Marand, Soufian, Azarshahr and Islamic Island) […]
Improvement of oxidative stability and textural properties of fermented sausage via addition of pistachio hull extract.
The purpose of this study was to evaluate the effectiveness of pistachio hull extract (PHE) as an antioxidant and antimicrobial agent for preservation of dry fermented sausages during fermentation and storage period. Sausages were prepared using starter culture (Biobak K) and treated with three levels of PHE (500, 750 and 1,000 ppm). The results showed […]
Polyphenol Stability and Physical Characteristics of Sweetened Dried Cranberries.
There is little research on how product matrix and processing affect phenolic compounds in sweetened dried cranberries over time. The objective of this research was to assess polyphenol content and stability in sweetened dried cranberries between product matrix types. This research assessed five commercially available sweetened dried cranberry matrices: (1) sliced apple juice infused, (2) […]
Impact of roasting conditions on the quality and acceptance of the peanut paste.
Roasting is the main processing step performed to improve sensory and conservative properties of peanuts. The objective of this study was to evaluate changes in peanut oil and paste during roasting at different temperatures in a conventional oven (80, 110, 140, 170, and 200°C) and microwave. The increase in roasting temperature promoted reduction of L* […]
HS-SPME GC–MS characterization of volatiles in processed walnuts and their oxidative stability.
Processed walnuts including hot air-dried and roasted walnuts were prepared. Volatiles in raw and processed walnuts were analyzed using head-space solid phase microextraction combined with gas chromatography and mass spectrometry. Oxidative stability of hot air-dried walnuts in different antioxidants, with or without vacuum package was studied to find a proper package for oxidation stability of […]
Identification of novel genes mediating survival of Salmonella on low-moisture foods via transposon sequencing analysis.
Salmonella enterica is the leading foodborne pathogen associated with outbreaks involving low-moisture foods (LMFs). However, the genes involved in Salmonella's long-term survival on LMFs remain poorly characterized. In this study, in-shell pistachios were inoculated with Tn5-based mutant libraries of S. Enteritidis P125109, S. Typhimurium 14028s, and S. Newport C4.2 at approximate 108 CFU/g and stored at 25°C. Transposon sequencing analysis (Tn-seq) […]