Quality analysis,classification, and authentication of liquid foods by near-infrared spectroscopy: A review of recent research developments

Nowadays, near-infrared spectroscopy (NIR) has become one of the most efficient and advanced techniques for analysis of food products. Many relevant researches have been conducted in this regard. However, no reviews about the applications of NIR for liquid food analysis are reported. Therefore, this review summarizes the recent research developments of NIR technology in the field of liquid foods, focusing on the detection of quality attributes of various liquid foods, including alcoholic beverages (red wines, rice wines, and beer), nonalcoholic beverages (juice, fruit vinegars, coffee beverages, and cola beverages), dairy products (milk and yogurt), and oils (vegetable, camellia, peanut, and virgin olive oils and frying oil). In addition, the classification and authentication detection of adulteration are also covered. It is hoped that the current paper can serve as a reference source for the future liquid food analysis by NIR techniques.     

Critical assessment of formulation,processing and storage conditions on the quality of alveolar baked products determined by different analytical techniques: A review

BackgroundSensorial, nutritional and microbiological deteriorations of alveolar bakeries are mostly hazardous for producers that are threatened by the loss of consumers’ confidence and market shares. These alterations induce loss of the freshness, which is the first feature of purchasing. Hence, monitoring the quality of baked products has been determined by using different analytical techniques (e.g., rheology, chromatography, sensory analyses, etc.). To date, these tools are used as reference ones, but, they come under criticism due to their destructive and sophisticated aspects. Therefore, many newest techniques have been investigated in order to provide reliable data in a short time and a cheap way without the need of samples preparation.Scope and approachThis review will discuss firstly the techno-functional properties of the lipid component in the formulation of alveolar products and attempts of its reduction and/or substitution. Then, the optimization of bakeries processing will be presented. The macroscopic and molecular techniques commonly used for monitoring quality, freshness and alteration of the alveolar products are finally reviewed.Key findings and conclusionsThe potentialities of vegetable oils combined with fibers to reduce the saturated fatty acids content in recipe are highlighted. This review provides also a comprehensive approach for the optimization of alveolar goods processing in order to maintain the nutritional quality of the final product. Regarding quality and freshness control, this review emphasizes the complementarity between traditional methods and innovative ones, including spectroscopic techniques in combination with chemometric tools for understanding the molecular and macroscopic structure of alveolar baked products.