17 research outputs found
Evaluation of an alternative method for the enumeration and confirmation of Clostridium perfringens from treated and untreated sewages
Graphene-enhanced ABS for FDM 3D printing: effects of masterbatch preparation techniques
Impacts of yarn twist and staple length on UV protection of plain-knitted cotton fabrics
Oxidative degradation and non-enzymatic browning due to the interaction between oxidised lipids and primary amine groups in different marine PL emulsions
Nickel quantification in serum by a validated sector-field inductively coupled plasma mass spectrometry method: assessment of tentative reference values for an Italian population
Effects of Filtration on the Quality Properties of Extra Virgin Olive Oils during Storage
Acid versus crude oils for broiler chicken diets: In vitro lipid digestion and bioaccessibility
The use of acid oils and fatty acid distillates in poultry feed formulations is limited due to controversial productive results that has been partially related to a lower digestibility compared with their corresponding crude oils. In vitro digestion and bioaccessibility models mimicking fat intestinal digestion will provide valuable information to understand differences in dietary fat digestibility observed in in vivo trials. The hydrolysis processes that occur during intestinal digestion of soybean acid oil (SA: unsaturated), palm fatty acid distillate (PFAD: saturated), and their corresponding crude oils, as well as their potential bioaccessibility were studied using an in vitro digestion model. The release of lipid-class products (Triacylglycerol(s), TAG; Diacylglycerol(s), DAG; Monoacylglycerol(s), MAG; and Free fatty acid(s), FFA) was followed at 10, 30, and 60 min of digestion. In all oils studied, the largest hydrolysis rate occurred within the first 10 min. At the end, the percentages of generated lipid products were in the range of expected values according to the pancreatic lipase activity. After digestion, dietary mixed micelles (DMM) and the non-bioaccessible precipitated phase (PP) were isolated to analyze their lipid-class composition. Unsaturated oils showed higher DMM fraction than saturated ones (P = 0.001). Higher PP (P < 0.001) were generated in acid oils. Results suggested that hydrolysis did not limit oil digestion and that the oil FFA levels influenced their bioaccessibility less than the saturation degree.This work was supported by the Ministerio de Economía y Competitividad of the Spanish Government (Project AGL2015−64431-C2−1-R) and by a pre-doctoral research grant (Ref. FPI/BES-2016-077930) and a Ramón y Cajal postdoctoral senior grant (RYC-2017-23601), from the Ministerio de Ciencia e Innovación of the Spanish Government.Peer reviewe