scholarly journals Modelling the Partial Demineralization Process of Cow Milk by Superpro Designer

2017 ◽  
Vol 45 (2) ◽  
pp. 9-12 ◽  
Author(s):  
Attila Csighy ◽  
András Koris ◽  
Gyula Vatai

Abstract Milk and dairy products contain a number of biologically active compounds (proteins, lipids, vitamins and minerals) that are essential for human nutrition. The most common procedures for demineralization are based on ion exchange-, nanofiltration- and electrodialysis-based technologies. In this study, the application of membrane filtration-based partial demineralization of cow milk was investigated and the process modelled. Using design equations, the partial demineralization process was designed and the economy of the process calculated. The modelling and simulation of the partial demineralization process was carried out by the SuperPro Designer programme. As the first step the unit operations of the demineralization technology were defined using the tools of the programme. The SuperPro Designer possesses industrial tools with reactor models, chemical components, a database of mixtures, and price estimations. By analysing the influence of the operation parameters, the feasibility of the proposed process was investigated. From the results of the modelling it can be concluded that the partial demineralization process can be successfully implemented, achieving the expected demineralization rates with a relatively good payback time of two years.

2018 ◽  
Vol 14 (s1) ◽  
pp. 45-55
Author(s):  
Attila Csighy ◽  
Andras Koris ◽  
Gyula Vatai

Milk and dairy products contain a number of biological materials that are essential for the human body, for example proteins, lipids, vitamins and minerals. In this study the application of membrane filtration based milk partial demineralization is detailed. The main point of the partial demineralization is to reduce the monovalent ions (Na+, K+) but to keep the divalent ions (Ca2+, Mg2+) content. The experiments were carried out using laboratory ultra- and nanofiltration units. Comparing the separation behavior of the membranes it was found that the investigated membranes are suitable for the partial demineralization. The result of the Lowry test showed that the protein concentration is higher in the retentates of all membrane filtrations than in the permeates.


2007 ◽  
Vol 2007 ◽  
pp. 187-187
Author(s):  
Reza Valizadeh ◽  
Mohammad Ali Norouzian ◽  
Fereydoon Azizi ◽  
Mehdi Hedayeti ◽  
Abbas Ali Naserian ◽  
...  

Iodine is an essential dietary element for mammals, required for the synthesis of the thyroid hormones; thyroxin (T4, 3,5,3’,5’-tetraiodothyronine), and its active form T3 (3,5,3’-triiodothyronine) (SCF,2002). Thyroid hormones play a major role in the growth and development of brain and central nervous systems, control of several metabolic processes in body including carbohydrate, fat, protein, vitamin and mineral metabolism (EFSA, 2005). Milk and dairy products are an important source of iodine for human. Iodine concentration of cow milk can be influenced by its concentration in the diet or pasteurization process. A Linear correlation between iodine content of the diet and concentration in cow milk has been reported (Hemken; 1979, Fish & Swenson; 1982, Lysbet et. al, 2003). This study was conducted in order to increase the iodine concentration of cow milk in accordance with human requirements by examining (i) inclusion rate of iodine in the animals diet and (ii) the effect of pasteurization process.


Author(s):  
Gennady V. Rodionov ◽  
Anna P. Olesyuk ◽  
Elena Ya. Koltinova ◽  
Vladislav V. Egorov ◽  
Natalya A. Malofeeva ◽  
...  

Protection of milk and dairy products from the effects of microorganisms and surface spoilage by the introduction of antimicrobial additives into packaging materials is a relevant and promising method. This publication is devoted to the preparation of a microparticle-modified ECOS preparation (silver salts and oxide) of a polyethylene package, the study of its properties and effects on the composition of milk. The basic physicochemical and microbiological parameters of milk during storage, as well as the possible migration of microparticles into milk and model liquids were studied by the methods of elemental analysis, scanning electron microscopy, and laser dynamic light scattering. It was found that such indicators as the content of fat, protein, lactose, dry substances remain unchanged within the experimental error for the initial milk, milk aged for 24 h in a glass container, and in contact with the modified polyethylene. When stored in glassware at room temperature (24 °C), the number of mesophilic aerobic and facultative anaerobic microorganisms in a day amounted to 8.1 · 106 CFU/cm3, while the number of bacteria in the package with ECOS was 6 times less. It was found that the silver content in milk in contact with the modified polyethylene is negligible. The amount of zinc increases within 24 h by 10%, which is not critical in terms of milk quality indicators. It is shown that storing milk in a polymer package made with ECOS preservatives allows to suppress the development of microorganisms in cow milk, does not lead to any significant change in its composition and does not affect the quality.


Animals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 735
Author(s):  
Ludmila Křížová ◽  
Veronika Křešťáková ◽  
Kateřina Dadáková ◽  
Tomáš Kašparovský

Milk and dairy products are important sources of nutrients in the human diet because they contain a number of essential substances and other biologically active components. Many of these substances can be modified, and thus offer opportunities to use milk and dairy products as functional food. Isoflavones are particularly important in human nutrition due to their diverse pharmacological and antioxidant properties. The clinical effectiveness of isoflavone-rich products is believed to be dependent on their ability to metabolize daidzein to equol, which may directly exert cancer preventive effects. However, only approximately 30–40% of humans are able to produce equol, while animals, in general, produce equol. Equol is the predominant product of bacterial metabolism of isoflavones and can be found in various amounts in some food of animal origin, especially in milk. Therefore, milk and dairy products can be considered to be sources of equol for humans who are not able to produce this metabolite. When the content of isoflavones in milk is to be modified, two groups of factors should be considered, i.e., dietary factors that include the source of isoflavones and the processing effects on feedstuffs and animal factors that include the intake of isoflavones, ruminal and postruminal changes, and the health and physiological status of animals. The approximate content of isoflavones in milk can be predicted using carry-over rates for different dietary sources or using a formula that describes the relationship between equol concentration in milk and formononetin intake. Processing and storage can affect the content and profile of isoflavones in milk and dairy products.


2021 ◽  
pp. 131739
Author(s):  
José Luan da Paixão Teixeira ◽  
Débora Parra Baptista ◽  
Eduardo Adilson Orlando ◽  
Mirna Lúcia Gigante ◽  
Juliana Azevedo Lima Pallone

2020 ◽  
Vol 10 (1) ◽  
pp. 139-144
Author(s):  
M. S. Gruntkoskyi ◽  
V. M. Kondtratiuk ◽  
S. M. Gryshchenko ◽  
N. P. Hryshchenko ◽  
I. S. Mytyay

The current research described the effect of neurotropic and metabolic non-hormonal biologically active medicine Nanovulin-VRKh © on the milk yield amount and the milk quality. Two cow groups were under study: the experimental and the control groups, each including four cows. The results showed that two of the neurotropic and metabolic Nanovulin-VRKh injections made 12 and 24 hours after the insemination did not effect the body thermoregulation of cows. Administration of the Nanovulin-VRKh contributes to stable fat formation in cow milk. Increased content of protein, nonfat milk solids, stable fat formation in milk were due to Nanovulin-VRKh administration. It was also established that, in the milk of experimental animals were administered the Nanovulin-VRKh, the pronounced effect of the drug on the protein, fat and nonfat milk solids content was observed, and the prolonged effect on these indices was reported during the fourth milking. Introduction of Cuprum aqua-chelate into the drug did not has toxic effect on the animal body and therefore would not effect the human health through the dairy products.


AGROFOR ◽  
2019 ◽  
Vol 4 (3) ◽  
Author(s):  
Jagath JAYASINGHE ◽  
Samudra PATHIRANA ◽  
Dhammi DILHANI ◽  
Senevirathne NAVARATHNA ◽  
Manoj SINHAPURA ◽  
...  

Nuwara Eliya district is the leading fresh milk producing area in Sri Lanka. In the district, pesticides are widely applied for intensive cultivation of vegetables which leads to contamination of water and material used to feed cows. Contamination and health risk hazards of organophosphorus pesticide residues in milk and dairy products originated in the district were studied. Identification and quantification of eleven commonly used pesticides in 50 milk samples and 12 dairy product samples were performed using standard analytical methods and GC-MS technique. Results revealed that fresh milk contained residues of Prothiofos (0.0568±0.037 mg/kg), Diazinon (0.0378±0.009 mg/kg), Chlorpyrifos (0.0264±0.004 mg/kg), Profenofos (0.196±0.099 mg/kg), Fipronil (0.1906±0.188 mg/kg), Phenthoate (0.1012±0.110mgkg), Dimethoate (0.1196±0.201 mg/kg) and Tebuconazole (0.062±0.069 mg/kg) at higher levels than the recommended maximum residue levels (MRLs) of the World Health Organization. Sterilized milk (0.0115±0.000 mg/kg) and fermented milk (0.022±0.004 mg/kg) contained higher levels of Profenofos than the MRLs. Higher levels of Fipronil than MRLs were observed in pasteurized milk (0.086±0 mg/kg) and fermented milk (0.014±0.000 mg/kg) samples. Phenthoate at higher levels than MRL was reported in pasteurized milk (0.3645±0.402 mg/kg), sterilized milk (0.1405±0.197 mg/kg) and milk powder (0.0055±0.000 mg/kg). Moreover, Dimethoate content in fermented milk (0.087±0.012 mg/kg) was higher than the MRL. Routine monitoring of the above pollutants in food items including fresh milk and value added milk products is essential to prevent, control and reduce the pollution and to minimize the health risks to consumers.


2019 ◽  
pp. 428-438 ◽  
Author(s):  
Stanislav Sukhikh ◽  
Lidiia Astakhova ◽  
Yuliya Golubcova ◽  
Andrey Lukin ◽  
Elizaveta Prosekova ◽  
...  

Milk and dairy products are staple foods in the diet of all social groups. Plant additives are of multifunctional use in the dairy industry. Wild plants are a source of vitamins, minerals, and other biologically active substances. Due to these compounds, they improve digestion, cardiovascular activity, and emotional state. This review describes the latest trends in creating functional milk drinks enriched with plant components. They include drinks based on whole milk and cream, dairy by-products (whey, buttermilk), as well as fermented milk drinks with probiotic cultures (kefir, drinking yogurt). We found that aqueous extracts were most commonly introduced into milk raw materials. Fruits and berries were dried and added to milk raw materials in the powder form. Special attention was paid to ‘hairy roots’ as a promising technology for producing various functional foods. In addition to being economically viable, this technology can help us expand the range of plant materials with endangered species. Functional milk-based drinks enriched with plant extracts can improve the immune system and be used as part of supportive therapy. They are also suitable for daily use to replenish the balance of essential nutrients. These properties make their production a promising direction in the dairy industry.


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