Toward the design of functional foods and biobased products by 3D printing: A review

Toward the design of functional foods and biobased products by 3D printing: A revie

Relation between crust development and heterocyclic aromatic amine formation when air-roasting a meat cylinder

The meat crust that develops during cooking is desired by consumers for its organoleptic properties, but it is also where heterocyclic aromatic amines (HAs) are formed. Here we measured HAs formation during the development of a colored crust on the surface of a beef meat piece. HAs formation was lower in the crust than previously measured in meat slices subjected to the same air jet conditions. This difference is explained by a lower average temperature in the colored crust than in the meat slices. Temperature effects can also explain why colored crust failed to reproduce the plateauing and decrease in HAs content observed in meat slices. We observed a decrease in creatine content from the center of the meat piece to the crust area. In terms of the implications for practice, specific heating conditions can be found to maintain a roast beef meat aspect while dramatically reducing HAs content

Conception d’aliments à fonctionnalités ciblées par impression 3D

Conception d’aliments à fonctionnalités ciblées par impression 3D. 18.Congrès de la Société Française de Génie des Procédé

Reducing the levels of sodium, saturated animal fat, and nitrite in dry-cured pork meat products: A major challenge

The curing of meat is a conservation technique widely used since ancient times to prolong shelf-life. It consists in exposing meat to a mixture of sodium chloride and nitrate/nitrite. Sodium chloride affects the flavor, texture and shelf-life of meat products. Animal fat mainly affects the flavor and texture, and nitrate and nitrite affect the color and flavor, and give cured meat prod-ucts their typical aroma. Excessive intake of sodium has been linked to arterial hypertension and increased risk of cardiovascular diseases. Excessive intakes of saturated fatty acids in pork fat, and also of nitrite, have been identified as factors promoting some cancers. There is consequently an increasing con-sumer demand to reduce these ingredients in processed meat and so develop healthier cured meat products. This paper reviews how and to what extent so-dium, animal fat rich in saturated fatty acids, and nitrite contents can be re-duced in the production of dry-cured hams and dry-fermented sausage

Development of a 3D Printer for the Manufacture of Functional Food Protein Gels

The use of additive manufacturing is growing in multiple sectors, including food, and its scientific and technological challenges form the subject of much ongoing research. One current hurdle is the implementation of the 3D printing process for meat protein matrices. This article gives an overview of the various 3D printers used to study the printability properties of foods and presents the development of a 3D printer designed to print food protein gels. Printhead development (flow rate and temperature control) and the modifications made to the printing plate (temperature control) are described and discussed in relation to the constraints highlighted in a first prototype. A second, developed prototype was characterized and validated. This last phase showed perfect control of the prototype in the purging of the extrusion system, the flow rate, the calibration and the displacement of the printhead, along with the temperatures at both printhead and plate. A study of the printed gels also revealed good repeatability of the printed gel geometry and pointed to new ways to improve the process. In the near future, the protein gels that will be printed from this prototype will serve as a base for texturizer-free functional foods for people with chewing difficulties

Toward the design of functional foods and biobased products by 3D printing: A review

Background: 3D printing or additive manufacturing (AM) now provides enormous freedom to design, manufacture and innovate in various domains, even in foodstuffs development. Given the immense potential applications related to AM, many authors are even talking about a new industrial revolution. Scope and approach: In this article, we review the state of the science in applied AM methods for developing biobased products in the medical and food sectors, with these two sectors having similar points. We were therefore interested in the technological locks encountered in the various studies carried out on the subject. Consideration has also been given to the possibility of using alternative sources of protein, such as animal byproducts, to address resource management and sustainable development issues. One of the strengths of 3D printing is personalization, so we chose to evaluate the impact of this technology on target populations and evaluate the possible evolutions. Key findings and conclusions: In order to design food in optimal conditions, the development of new 3D printers is fundamental 1) to ensure the sanitary quality (both microbiological and chemical) of these products, and 2) to control the structure and texture of these 3D-printed foods. From there, it will be possible to propose personalized foods, adapted to different categories of population (e.g. seniors or young people...). The major challenge in the next years will be to develop, using 3D printing, meat products or products blending alternative protein sources that remain perfectly structured without having to use additives. The final step will be to gamer consumer acceptance for these 3D-printed foods

Reducing the levels of sodium, saturated animal fat, and nitrite in dry-cured pork meat products: A major challenge

The curing of meat is a conservation technique widely used since ancient times to prolong shelf-life. It consists in exposing meat to a mixture of sodium chloride and nitrate/nitrite. Sodium chloride affects the flavor, texture and shelf-life of meat products. Animal fat mainly affects the flavor and texture, and nitrate and nitrite affect the color and flavor, and give cured meat prod-ucts their typical aroma. Excessive intake of sodium has been linked to arterial hypertension and increased risk of cardiovascular diseases. Excessive intakes of saturated fatty acids in pork fat, and also of nitrite, have been identified as factors promoting some cancers. There is consequently an increasing con-sumer demand to reduce these ingredients in processed meat and so develop healthier cured meat products. This paper reviews how and to what extent so-dium, animal fat rich in saturated fatty acids, and nitrite contents can be re-duced in the production of dry-cured hams and dry-fermented sausages

Mise en place d'une méthode d'hydrolyse enzymatique pour l'étude de la réaction de glycation dans des gels protéiques

Maste

Effect of cooking on protein oxidation in n-3 polyunsaturated fatty acids enriched beef. Implication on nutritional quality

International audienceThe effect of cooking on protein oxidation was investigated in M. Longissimus thoracis of eight Normand cows fed during a 100 days finishing period with two different diets: a conventional diet (concentrate/straw based diet) and a diet rich in n-3 polyunsaturated fatty acids (PUFAs), obtained by addition to the conventional diet of a mixture of extruded linseed and extruded rapeseed. After 11 days storage, at 4 degrees C under vacuum, meat was cooked by applying jets of steam. Three experimental heating treatments were tested: two with constant surface temperatures of 65 and 96 degrees C during 300 s, and one with a continuous increasing surface temperature up to 207 degrees C. Protein oxidation was evaluated by the measurement of carbonyls, aromatic amino acids, and free thiols content. The formation of Schiff bases due to the reaction of proteins with aldehydic products of the lipid oxidation was also evaluated. Cooking resulted in a significant increase of carbonyl groups and Schiff bases as well as a significant degradation of tyrosine and tryptophan. Nevertheless, enrichment of the animal diet in n-3 PUFAs had minor effects on protein oxidation induced by cooking which are unlikely to be of nutritional significance