Evolution of Free Amino Acids, Histamine and Volatile Compounds in the Italian Anchovies (Engraulis encrasicolus L.) Sauce at Different Ripening Times

2022

In this study, the evolution of the safety, nutritional, and volatile profile of a traditional Italian anchovy sauce with protected designation of origin (PDO), called “colatura di alici di Cetara”, is investigated after 12, 24, and 48 months of aging in wooden barrels. Some physicochemical parameters, free amino acids, volatile compounds, and histamine contents were evaluated during the aging of the samples. Glutamate, which together with aspartate is responsible for the umami taste, was the predominant free amino acid in the tested fish sauce, with a significant increase during the 48 months of maturation. The total amino acid content of the anchovy sauce increased from 24 to …

Microencapsulation of Phenolic Extracts from Cocoa Shells to Enrich Chocolate Bars

2021

AbstractCocoa bean shells were subjected to green extraction technologies, based on the absence of toxic organic solvents, to recover polyphenols; the extract was then encapsulated using a spray dryer and maltodextrin as coating agent. The best conditions observed in the spray drying tests (core-to-coating ratio 1:5; inlet temperature 150 °C; flow rate 6 ml min−1) were applied to produce the microcapsules used to enrich the same cocoa mass as the shells and processed for the preparation of the chocolate bars. Sensory analysis showed no significant differences between enriched chocolate bar and the unenriched reference one, except for the appearance. Both samples were then subjected to accel…

Produzione di concentrati proteici da siero di latte bufalino

2008

Ultrafiltration of water buffalo whey: peformance and modeling of a tubular ceramic module

2007

Produzione di concentrati proteici da siero di latte bufalino/Water buffalo whey protein concentrate production

2008

The technical feasibility of the recovery of whey protein from water buffalo whey via spiralwound microfiltration (MF) and ultrafiltration (UF) membranes was assessed in the pilot-plant scale. The process tested consisted of preliminary whey centrifugation to remove fat and minimise membrane reversible fouling. By combining a UF step with two subsequent diafiltration cycles, it was possible to obtain buffalo whey protein concentrates with a total protein content of 67.5% (w/w).