scholarly journals The Impact of Different Closures on the Flavor Composition of Wines during Bottle Aging

Foods ◽  
2021 ◽  
Vol 10 (9) ◽  
pp. 2070
Author(s):  
Isabel Furtado ◽  
Paulo Lopes ◽  
Ana Sofia Oliveira ◽  
Filipa Amaro ◽  
Maria de Lourdes Bastos ◽  
...  

Wine flavor undergoes major changes during bottle aging and can be influenced by the type of closure. The interaction between wine, the type of closure and the external environment has the potential to significantly influence the overall quality of bottled wines, especially when the storage period is relatively long (more than five years). Therefore, the choice of closure (cork, synthetic or screw cap) deserves special attention in order to establish the ideal sealing conditions for optimizing wine flavor attributes. The contribution of different closures to the quality of bottled wine is through mass transfer phenomena, including permeation, sorption (scalping) or desorption of chemicals between closure materials and wines. Thus, this article aims to review the impact of different closures on the flavor composition of wines during post-bottling conditions. The implications of closures on wine sensory properties are also discussed.

Holzforschung ◽  
2000 ◽  
Vol 54 (2) ◽  
pp. 201-206 ◽  
Author(s):  
L. Chrusciel ◽  
E. Mougel ◽  
A. Zoulalian

Summary In conventional wood dryers, air is dehumidified by condensation or by its partial remove. A new air dehydration process is proposed for low temperature convective wood drying. This process consists in using an absorber working with an organic absorbent, the triethylene glycol (TEG) that is pulverised in a venturi type of device. The adaptation of this process well known for hydrocarbon gas dehydration and its interest for wood drying operations are discussed. The prototype installation is presented and the impact of the absorption on the evolution on drying cycles are investigated. The performances of the absorber are evaluated quantitatively and qualitatively. The average drying kinetic is quantified with a global mass transfer coefficient and the drying quality is characterised through the measurements of defects generated during drying.


Author(s):  
Rui Cruz ◽  
Margarida Vieira ◽  
Cristina Silva

The quality of frozen foods can be negatively affected if improper storage and distribution temperatures are allowed. The objective of this study was to investigate the effect of freeze-thaw cycles, which may occur in the cold chain, on colour (Lab, Total Colour Differences (TCD), chroma and hue angle) and vitamin C (ascorbic and dehydroascorbic acids) content of frozen strawberries (Fragaria ×ananassa, Duschesne, cv. Selva). A plan of temperature abuses (TAs) was established, based on a real situation, and applied to frozen strawberries during a four month frozen storage period. The results showed that the lightness (L) was the only parameter that was not significantly affected by range of TAs studied. The colour showed some variation on the parameters a, b, TCD, chroma and hue angle. During TAs, ascorbic acid decreased about 75% and dehydroascorbic acid increased 73%. The non-abused strawberry samples showed better overall appearance than the abused samples.This work contributes to an understanding of the quality changes of frozen strawberries that might occur during frozen storage and cold chain distribution.


OCL ◽  
2018 ◽  
Vol 25 (5) ◽  
pp. D502 ◽  
Author(s):  
Hélène de Clermont-Gallerande ◽  
Sarah Abidh ◽  
Alexandre Lauer ◽  
Séverine Navarro ◽  
Gérard Cuvelier ◽  
...  

Lipstick is a key product in the make-up sector. A woman applies lipstick to feel feminine and attractive. The sensation she perceives when she applies the product plays an important role in her attachment to her lipstick. The impact of the ingredients on the sensory properties and the quality of the lipsticks needs to be understood, so that the formulation can be more effective and the sensory properties can be precisely adjusted to the target market. During this study, multidimensional correlations were made between the percentage of ingredients, their physico-chemical specifications and the sensory properties of the raw materials on their own or the lipsticks. The objective of this study is to predict the sensory properties of lipsticks from the physico-chemical specifications of the ingredients. It is in effect quicker to access the physical data than the sensory descriptions. The lipsticks were made using a simplified formula, evaluated in a sensory analysis and their physico-chemical characteristics were measured. The relationships between the sensory properties, the ingredient specifications and their percentage of use in the formula were highlighted. The results confirm the major role of the viscosity of oils and the wax used in the formula on the sensory and mechanical properties of the lipstick. It is therefore possible to modify the sensory properties, for example to adjust the shininess of a lipstick, without altering its mechanical resistance. This opens up opportunities for developing innovative sensory textures in short lead times.


2021 ◽  
Author(s):  
Anatoly Zeyliger ◽  
Olga Ermolaeva

<p>Until recently, new technologies introduced into irrigated agriculture were mainly aimed at developing one or several related control actions. However, the needs of society to increase the volume and improve the quality of agricultural products have led to significant qualitative changes in irrigated agriculture. The various robotic systems used for this have proven their effectiveness in the mechanization and automation of the irrigation process, as well as in the application of chemical fertilizers and chemical protection of agricultural crops from diseases and pests. This resulted in higher yields while lowering production costs.Nowadays, biotechnologies currently being developed and being introduced into irrigated agriculture, as well as systems for controlling and monitoring environmental impacts, are aimed at solving problems related to further increasing the efficiency of the use of natural resources, while minimizing the risks of negative impact on components and services of the environment.This is largely due to the impact of the rapid development of IC and sensor technologies aimed at creating production management systems based on the cyber-physical systems (CPS) paradigm. For this, there are using a holistic vision of the structure and cybernetic methods of management, artificial intelligence technologies, as well as digital platforms for integrating information flows between sub-subsystems of management, control, monitoring and decision support.In this context, the main difference between developed agricultural CPSs from the existing industrial agricultural systems focused on current economic efficiency lies in the plane of making agricultural production sustainable in the long term based on a balance between economic efficiency and the quality of natural resources used and services of the environment. From this point of view, irrigated agriculture focuses on the efficient use of natural resources, which are water, soil and air, as well as renewable and non-renewable (fossil) energy. At the same time, weather are considered as the impact of the external environment providing an irreplaceable source of water, heat and energy resources but with stochastic characteristics that are difficult to formalize. In connection with this diversity, a CPSs are built taking into account a complex compromise that takes into account many aspects of the negative impact of intensive agricultural production technologies on the qualitative and quantitative characteristics of these resources, not only in the place of their use, but also on the external environment beyond these limits. In this regard, water resources are one of the most important factors necessary, on the one hand, to impart long-term sustainability to irrigated agriculture, and on the one hand, as a factor that can lead in the near future to a significant decrease in fertility, as well as to a negative impact on the environmental services of the surrounding area. This contribution discusses some points of the development of an agricultural irrigation CPS’ subsystem aimed to monitor the soil moisture content at the root zone of the soil cover at the scale of irrigated agricultural crops and their relationship with industrial sprinkling technologies.Acknowledgments: The reported study was funded by RFBR, project number 19-29-05261 mk</p>


2016 ◽  
Vol 1136 ◽  
pp. 196-202
Author(s):  
Qi Gao ◽  
Ya Dong Gong ◽  
Yun Guang Zhou

Single crystal Ni3Al-based superalloy has excellent comprehensive performance.To study the micro-milling surface quality of Ni3Al-based superalloy, this article used two-edged carbide alloy micro-milling tool with 0.8mm diameter, then orthogonal experiment of three factors and five levels was implemented to the micro-milling of typical single crystal Ni3Al-based superalloy IC10. The primary and secondary factors of the impact on the micro-milling surface quality were found from spindle speed, feed rate, milling depth by range analysis, and the ideal cutting process parameters combination was optimized and obtained, then its cutting mechanism and the reason of affecting the surface quality were analyzed. The experiment result has certain guiding significance to the micro-milling mechanism of single crystal superalloy.


2018 ◽  
Vol 48 (3) ◽  
pp. 361-367 ◽  
Author(s):  
Sharon M Nelis ◽  
Yu-Tzu Wu ◽  
Fiona E Matthews ◽  
Anthony Martyr ◽  
Catherine Quinn ◽  
...  

2013 ◽  
Vol 82 (4) ◽  
pp. 415-419
Author(s):  
Zdeňka Hutařová ◽  
Vladimír Večerek ◽  
Petr Maršálek ◽  
Gabriela Bořilová ◽  
Iva Steinhauserová

With the increasing popularity of game meat, greater emphasis is being placed on ensuring high hygienic quality of this food. Biogenic amines are among possible indicators of the hygienic quality of meat. The aim of this study was to monitor biogenic amine concentrations in the muscle tissues of pheasants (n = 20) killed by pithing and treated by drawing (guts are removed from the body cavity through the cloaca using a specially fashioned hook). The pheasants’ bodies were stored hanged by the neck for 21 days at ±7 °C. Breast and thigh muscle samples were collected at weekly intervals (day 1, 7, 14 and 21 of storage). Biogenic amines (putrescine, cadaverine, tyramine, histamine, tryptamine and phenylethylamine) were analysed by reverse phase liquid chromatography and detected by tandem mass spectrometry. In breast muscle, the most evident change was noted in the concentration of cadaverine (0.026 and 1.070 mg/kg for storage day 1 and 21, respectively) and tyramine (0.001 and 0.958 mg/kg for storage day 1 and 21, respectively). Throughout the storage period, the concentration of 5 mg/kg (indicating a loss of high hygienic quality of meat) was not exceeded by any of the assessed biogenic amines. In thigh muscle, the concentration indicating high hygienic quality of meat was exceed after 14 days of storage in the case of cadaverine, tyramine and putrescine (at the end of storage their concentrations were 9.058, 10.708 and 3.345 mg/kg, respectively). Hygienic quality of thigh muscle decreased faster compared to breast muscle. This study brings new information about the content of biogenic amines in the meat of pithed pheasants treated by drawing.


2021 ◽  
Vol 101 ◽  
pp. 02016
Author(s):  
Svetlana Mukhametdinova ◽  
Evgenia Tyumentseva ◽  
Oleg Patlasov ◽  
Oleg Luchko

The dynamic nature of changes in the conditions of existence and functioning of modern communities requires comprehensive and integrated research in order to develop a reference architecture of human ecology, as a system of scientifically substantiated criteria for a qualitative and quantitative assessment of the impact of the external environment on various aspects of human life and the formation of a balanced strategy for managing social development. The paper presents one of the approaches to the design of the reference architecture of human ecology based on the methodology of the function oriented modelling and provides examples of models developed in accordance with the IDEF0 notation. The study identified the main stages in the design of the reference architecture of human ecology from collecting information to developing software that makes it possible to automate the processing of input information characterizing various factors affecting the quality of life of the population to developing the architecture of human ecology in a particular region or city and comparing it with the reference one.


2021 ◽  
Vol 90 (1) ◽  
pp. 109-116
Author(s):  
Vladimír Večerek ◽  
Eva Voslářová ◽  
Josef Kameník ◽  
Zuzana Machovcová ◽  
Lenka Válková ◽  
...  

The performance of stunning in various abattoirs can differ. The aim of the study was to compare the stunning of cattle with a captive bolt in two abattoirs. We monitored the slaughtering skills by measuring the deviation of the location of the stunning shot hole on the skull from the ideal point and further by measuring the angle of inclination of the stunning shot on the skull from the ideal perpendicular angle. We observed the impact of different slaughter skills on the quality of stunning of animals based on the occurrence of failure to achieve motor paralysis after a stun shot. The failure to collapse occurred significantly more frequently (P < 0.05) in abattoir A than in abattoir B. In both abattoirs there was a higher (P < 0.05) number of bulls failing to collapse than in females (cows and heifers). However, the effect of slaughter skills on the occurrence of signs associated with insufficient stunning was not found. The signs occurred in abattoir A and abattoir B to the same extent. In bulls, the number of animals with signs was higher (P < 0.05) than in females in both abattoirs. The results show that insufficient proficiency of skills in stunning cattle with a captive bolt leads to a higher number of animals failing to collapse after a stun shot. The effect of slaughter skills on the occurrence of signs in bulls and females was not proven; however, in bulls a higher incidence of signs was demonstrated than in females.


2021 ◽  
Vol 66 (2) ◽  
pp. 165-179
Author(s):  
Mutiat Balogun ◽  
Samson Oyeyinka ◽  
Fausat Kolawole ◽  
Adegbola Dauda ◽  
Aisha Abdulmalik

Masa is a traditionally fermented meal usually made from cereals. The aim of this research was to produce an enriched meal from rice and Bambara groundnut. The colour, functional properties and microbial quality of composite blend of rice and Bambara groundnut flour, in the ratio of 100:0, 95:5, 90:10, 85:15, 80:20, were evaluated using standard methods. Sensory properties of freshly made masa and masa prepared from stored flours were also determined. The microbial load of the masa flour blend increased over the storage period. Water absorption capacity, swelling capacity and bulk densities increased, while the oil absorption capacity decreased with the storage period. The objective colour result showed a decrease in the lightness (L*) value. Sensory properties of masa were not substantially altered with Bambara groundnut inclusion, but the ratings reduced with storage. Instant masa may be prepared from flour stored for 4 weeks without considerable changes in quality.


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