scholarly journals Fatty acids stability in goat yoghurt

2019 ◽  
Vol 49 (7) ◽  
Author(s):  
Lenka Pecová ◽  
Eva Samková ◽  
Oto Hanuš ◽  
Lucie Hasoňová ◽  
Jiří Špička

ABSTRACT: Evaluation of fatty acids (FAs) stability in dairy products undergoing technological milk processing is important for subsequent determinations of nutritional value. The aim of the study was to assess FA composition in milk and its dairy product and to explore differences in the FA profile found in yoghurt compared to raw material (goat milk). In the present study, a reduced proportion of volatile FAs (VFA) that cause “goat flavor” was reported in goat yoghurt in comparison to the FA profile of milk. Conversely, an increase of medium-chain as well as beneficial long-chain and unsaturated FAs (UFA) was reported in yoghurt compared with milk. In all cases, the differences in the FA composition between milk and yoghurt were not significant; therefore, it was found that manufacturing of yoghurt had no major influence on FA composition.

Nutrients ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 702
Author(s):  
Alaitz Berriozabalgoitia ◽  
Juan Carlos Ruiz de Gordoa ◽  
Mertxe de Renobales ◽  
Gustavo Amores ◽  
Luis Javier R. Barron ◽  
...  

The questioned reliability of 15:0, 17:0, and trans9-16:1 acids as biomarkers of dairy fat intake also questions the relationship between the intake of these products and their health effects. Two studies were conducted in the same geographical region. In an intervention study, volunteers followed a diet rich in dairy products followed by a diet without dairy products. Plasma and erythrocyte fatty acids (FA) were analyzed, and their correlations with dairy product intakes were tested. The FA biomarkers selected were validated in the Gipuzkoa cohort of the European Prospective Investigation into Cancer and Nutrition (EPIC) observational study. The correlation coefficients between plasma concentrations of iso16:0, iso17:0, trans11-18:1, cis9, trans11-18:2, and cis6-18:1 and the dairy fat ingested are similar in both studies, indicating that their concentration increases by 0.8 µmol/L per gram of dairy fat ingested. The biomarkers are positively related to plasma triglycerides (r = 0.324 and 0.204 in the intervention and observational studies, respectively) and total cholesterol (r = 0.459 and 0.382), but no correlation was found between the biomarkers and atherogenicity indexes. In conclusion, the sum of the plasma concentration of the selected FAs can be used as biomarkers of dairy product consumption. A linear relationship exists between their plasma concentrations and ruminant product intake. These biomarkers allow for obtaining consistent relationships between dairy intake and plasma biochemical parameters.


2021 ◽  
Vol 3 ◽  
pp. 13-23
Author(s):  
G.U. Akimbekova ◽  
◽  
A.B. Baymuhanov ◽  
U.R. Kaskabaev ◽  
◽  
...  

The purpose-on the basis of the analysis of the current state and location of enterprises in the dairy industry of the republic and Almaty region, in particular, to identify the main factors that hinder its development, to develop recommendations for solving the existing problems. Methods - monographic, computational-constructive, analytical, economic-statistical, logical generalization. Results - research confirms the underdevelopment of the infrastructure for effective promotion of dairy products from producer to consumer along the production-processing-sale technological chain, especially primary milk processing; often there is a discrepancy between the required proportions between the existing production capacities of milk processing enterprises and the level of development of their raw material zones. Based on production potential of each district of a specific region and calculation of the population's demand for dairy products, a forecast for creation of agricultural cooperatives (APC) of dairy direction for purification of milk from mechanical impurities, cooling, storage and transportation in the context of districtsis presented. It is necessary to create 77 APC for the period 2021-2022, incl. 64 cooperatives for primary milk processing. Conclusions - it is recommended to merge small farms into agricultural cooperatives. The economic efficiency of organizing a cooperative milk collection point at the district level has been justified. Based on the study of the existing schemes for location of milk processing enterprises, proposals have been developed for the localization of new cooperative milk collection points in the territorial units of the region. Dairy industry enterprises need investments to renew their fixed assets. The authors note that the possibilities and advantages of cooperative principles and the potential reserve of agricultural cooperation are not yet fully realized.


2018 ◽  
Vol 61 (4) ◽  
pp. 395-403
Author(s):  
Milan Margetín ◽  
Marta Oravcová ◽  
Jana Margetínová ◽  
Róbert Kubinec

Abstract. The fatty acid (FA) composition in the intramuscular fat (IMF) of the musculus longissimus dorsi (MLD) of Ile de France purebred lambs in two different production systems in Slovakia was evaluated using gas chromatography. In the first production system, lambs and ewes were assigned to pasture without access to concentrates (P). In the second system, lambs and ewes were confined indoors with hay/silage and access to concentrates (S). An analysis of variance with the following factors was employed: production system, sex, and production system–sex interactions. The proportions of arachidonic, eicosapentaeonic, docosapentaeonic, and docosahexaenoic FAs, i.e. long-chain polyunsaturated FA (PUFA), were significantly higher in P lambs (1.83, 0.82, 0.92, 0.29 g 100 g−1 FAME, respectively) than in S lambs (0.45, 0.14, 0.30, 0.09 g 100 g−1 FAME, respectively). The proportions of conjugated linoleic acid (CLA), n-6 PUFA, n-3 PUFA, and essential FA (linoleic and α-linolenic) were also significantly higher in P lambs (2.10, 8.50, 4.55, and 8.80 g 100 g−1 FAME, respectively) than in S lambs (0.65, 3.27, 1.50, and 3.64 g 100 g−1 FAME, respectively). The proportions of palmitic acid and myristic acid as important individual saturated FAs (SFA) were significantly higher in S lambs (28.51 and 8.30 g 100 g−1 FAME, respectively) than in P lambs (21.80 and 5.63 g 100 g−1 FAME, respectively). The proportion of all SFAs was also significantly higher in S lambs (57.87 g 100 g−1 FAME) than in P lambs (48.70 g 100 g−1 FAME). From a nutrition and human health point of view (i.e. higher proportions of PUFA, CLA, and essential FAs and lower proportions of SFAs), meat from P lambs was found to be more favourable and would be more highly recommended for consumption.


2014 ◽  
Vol 32 (No. 5) ◽  
pp. 493-502 ◽  
Author(s):  
S. Sampels ◽  
T. Zajíc ◽  
J. Mráz

We investigated the changes in omega 3 enriched carp fillets caused by pan frying. The investigated characteristics were fat uptake, fatty acid (FA) composition, and oxidation. Four different fats were used and fillets were fried plain or battered. The fillet fat content increased during frying and FA composition in the fillets reflected the composition of the frying fat. Frying with sunflower oil negatively influenced the nutritional value by decreasing the n-3/n-6 ratio in the fillets. Frying with rapeseed oil preserved the favourable n-3/n-6 ratio without increasing the saturated fatty acids (SFA). Frying with lard and butter preserved the n-3/n-6 ratio but increased the SFA content. No increased oxidation occurred with the use of rapeseed oil. We concluded that using rapeseed oil for fish seemed to preserve the nutritionally valuable composition best.  


2018 ◽  
Vol 58 (2) ◽  
pp. 234 ◽  
Author(s):  
Carolyn Aboujaoude ◽  
Angélica Simone Cravo Pereira ◽  
Fabieli Louise Braga Feitosa ◽  
Marcos Vinicius Antunes de Lemos ◽  
Hermenegildo Lucas Justino Chiaia ◽  
...  

The aim of the present study was to estimate covariance components and genetic parameters for beef fatty acid (FA) composition of intramuscular fat in the longissimus thoracis muscle in Nelore bulls finished in feedlot. Twenty-two FAs were selected. The heritability estimates for individual FAs ranged from 0.01 to 0.35. The heritability estimates for myristic (0.25 ± 0.09), palmitic (0.18 ± 0.07), oleic (0.28 ± 0.09), linoleic (0.16 ± 0.06) and α-linolenic (0.35 ± 0.10) FAs were moderate. Stearic, elaidic, palmitoleic, vaccenic, conjugated linoleic acid, docosahexanoic, eicosatrienoic and arachidonic FAs had heritability estimates below 0.15. The genetic-correlation estimates between the individual saturated FAs (SFAs) were low and negative between myristic and stearic FAs (–0.22 ± 0.84), moderate between palmitic and myristic FAs (0.58 ± 0.56) and negative between palmitic and stearic FAs (–0.69 ± 0.45). The genetic correlations between the individual long-chain polyunsaturated FAs (PUFAs) were positive and moderate (>0.30). However, the genetic-correlation estimates between long-chain PUFAs and α-linolenic acid were low (<0.30), except for the correlation between arachidonic and α-linolenic acids. The genetic correlation estimates of the sums of SFAs with monounsaturated fatty acids and omega 6 FAs were low (0.25 ± 0.59 and –0.02 ± 0.51 respectively), high with PUFAs and omega 9 FAs (–0.85 ± 0.15 and 0.86 ± 0.17 respectively) and moderate with omega 3FAs (–0.67 ± 0.26). The present study demonstrated the existence of genetic variation and, hence, the possibility to increase the proportion of healthy and favourable beef FAs through selection. The results obtained in the study have provided knowledge to elucidate the additive genetic influence on FA composition of intramuscular fat. In addition, genetic-relationship estimates of intramuscular FA profile help seek strategies for genetic selection or genetic-based diet management to enhance the FA profile in Zebu cattle.


2021 ◽  
Vol 43 ◽  
pp. e52493
Author(s):  
Silviya Ivanova ◽  
Nikolay Markov

Buffaloes make better use of coarse and inferior feed by converting them to biologically valuable animal production. They make very good use of the additional production of crop production, such as straw, sunflower cakes, sprouts and other. The aim is to study the physicochemical and fatty acid composition of the rations of buffalo of the Bulgarian mura breed in a church farm in Gigentsi village, Pernik District. The application of standard methods for the nutrition of buffaloes in separate periods - pastured with succulent fodder, winter (indoor) with coarse fodder, through which the ruminants are provided with the necessary nutritional components, allows to obtain high quality milk as a basic raw material for the production of dairy products. The use of succulent fodder and the incorporation of root crops into the feed instead of the buffalo concentrate provides them with respect to linoleic and alphalinolenic fatty acids, which are substrates for the synthesis of CLA (anticancer action) in rumen of ruminants.


Food systems ◽  
2019 ◽  
Vol 2 (2) ◽  
pp. 44-47
Author(s):  
N. E. Posokina ◽  
N. M. Alabina ◽  
A. Yu. Davydova

Nowadays, there is a growing consumer interest in food products, made from vegeta-ble raw materials. The article is devoted to an actual topic related to the choice of plant mate-rials, based on its nutritional and biological value, in order to create functional beverages. The analysis of the world market of vegetable analogues of milk was implemented. Based on the literature, the following raw materials were analyzed: cashew nuts, cannabis fruits, sesame and poppy seeds, almond kernels, buckwheat seeds and oats, soybeans. The data on nutritional value, vitamin-mineral and amino acid composition, as well as the composition of fatty acids of the specified raw materials was presented. The conclusion is made about the perspective of its use for the manufacture of drinks, alternative cow’s milk. The article reflects the results of research work on the creation of a functional drink based on sesame seeds, provides information about the nutritional value and biochemical composition of the drink, made on the basis of this raw material. Sesame milk when used regularly can help prevent diseases of the car-diovascular system, the gastrointestinal tract, the musculoskeletal system.


2020 ◽  
pp. 110-121
Author(s):  
Vitalii Karpenko

Purpose. The aim of the article is to assess current state of development of dairy enterprises in Khmelnytskyi region on the basis of a comprehensive analysis of financial and economic activities. Methodology of research. The following methods are used in the research process: comparative analysis ‒ in assessing the general trends in the dynamics of indicators of the level of milk procurement, its processing, assessment of financial activities (sustainability) of milk processing enterprises; graphic ‒ when reflecting the production of basic dairy products, the trend of the coefficients of financial and economic activity and positioning of clusters of dairy enterprises; abstract and logical ‒ in preparing conclusions. Findings. The production of dairy products by enterprises of Khmelnytskyi region by types by years is analyzed. Key players - processors in the regional dairy market have been identified. Monitoring of raw material zones of some milk processing enterprises of Khmelnytskyi region is carried out. Indicators of financial and economic activity of dairy enterprises are estimated. The coefficients of financial and economic activity of milk processing enterprises of Khmelnytskyi region are analysed. The ranking of clusters of dairy enterprises for their positioning and development of a strategy for their further development is carried out. Originality. An integrated assessment of the financial condition of dairy enterprises in Khmelnytskyi region has been developed, which uses the main financial ratios of economic activity. Practical value. The results of the study can be used in the formation of development strategy, as well as in determining the reserves of economic growth of dairy enterprises in Khmelnytskyi region. Key words: milk and dairy products market, production, raw material zone, financial condition, financial ratios, cluster, integrated assessment.


Nutrients ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 743 ◽  
Author(s):  
Quang V. Nguyen ◽  
Bunmi Malau-Aduli ◽  
John Cavalieri ◽  
Aduli E.O. Malau-Aduli ◽  
Peter Nichols

Omega-3 polyunsaturated fatty acids (n-3 PUFA) are termed essential fatty acids because they cannot be synthesized de novo by humans due to the lack of delta-12 and delta-15 desaturase enzymes and must therefore be acquired from the diet. n-3 PUFA include α-linolenic acid (ALA, 18:3n-3), eicosapentaenoic (EPA, 20:5n-3), docosahexaenoic (DHA, 22:6n-3), and the less recognized docosapentaenoic acid (DPA, 22:5n-3). The three long-chain (≥C20) n-3 PUFA (n-3 LC-PUFA), EPA, DHA, and DPA play an important role in human health by reducing the risk of chronic diseases. Up to the present time, seafood, and in particular, fish oil-derived products, have been the richest sources of n-3 LC-PUFA. The human diet generally contains insufficient amounts of these essential FA due largely to the low consumption of seafood. This issue provides opportunities to enrich the content of n-3 PUFA in other common food groups. Milk and milk products have traditionally been a major component of human diets, but are also among some of the poorest sources of n-3 PUFA. Consideration of the high consumption of milk and its processed products worldwide and the human health benefits has led to a large number of studies targeting the enhancement of n-3 PUFA content in dairy products. The main objective of this review was to evaluate the major strategies that have been employed to enhance n-3 PUFA content in dairy products and to unravel potential knowledge gaps for further research on this topic. Nutritional manipulation to date has been the main approach for altering milk fatty acids (FA) in ruminants. However, the main challenge is ruminal biohydrogenation in which dietary PUFA are hydrogenated into monounsaturated FA and/or ultimately, saturated FA, due to rumen microbial activities. The inclusion of oil seed and vegetable oil in dairy animal diets significantly elevates ALA content, while the addition of rumen-protected marine-derived supplements is the most effective way to increase the concentration of EPA, DHA, and DPA in dairy products. In our view, the mechanisms of n-3 LC-PUFA biosynthesis pathway from ALA and the biohydrogenation of individual n-3 LC-PUFA in ruminants need to be better elucidated. Identified knowledge gaps regarding the activities of candidate genes regulating the concentrations of n-3 PUFA and the responses of ruminants to specific lipid supplementation regimes are also critical to a greater understanding of nutrition-genetics interactions driving lipid metabolism.


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