scholarly journals Fermented milk products: effects of lactose hydrolysis and fermentation conditions on the rheological properties

2015 ◽  
Vol 96 (2) ◽  
pp. 199-211 ◽  
Author(s):  
C. Schmidt ◽  
S. Mende ◽  
D. Jaros ◽  
H. Rohm
Keyword(s):  
Rheological Properties ◽  
Fermented Milk ◽  
Lactose Hydrolysis ◽  
Fermentation Conditions ◽  
Milk Products ◽  
Fermented Milk Products

scholarly journals Study of rheological characteristics of fermented milk paste with spices

ScienceRise ◽  
2021 ◽  
pp. 30-34
Author(s):  
Galyna Polishchuk ◽  
Uliana Kuzmyk ◽  
Nataliia Yushchenko ◽  
Tetiana Osmak ◽  
Mykhailo Kurmach ◽  
...  
Keyword(s):  
Rheological Properties ◽  
Technological Process ◽  
Raw Materials ◽  
Fermented Milk ◽  
Biologically Active ◽  
Stress Index ◽  
Rheological Characteristics ◽  
Milk Products ◽  
Fermented Milk Products ◽  
Technological Product

Research object: rheological characteristics of fermented milk pastes with spices. Investigated problem: according to the results of the degree of syneresis and rheological properties, the consistency of the product is characterized. This allows to improve and optimize the technological process for the production of fermented milk products. Main scientific results: the results of the dispersion analysis of spices show that their particle size is in the range of 250 … 400 microns. This size is optimal for the extraction of biologically active substances of spices, which will contribute to greater assimilation by the human body. And also optimally to avoid caking of raw materials and the manifestation of moisture-absorbing properties. It was found that the degree of syneresis of fermented milk pastes with spices is within 10 %. With the addition of cinnamon and fenugreek spices, the degree of syneresis is lower compared to other examples. This is due to the fact that spices contain a solution of fiber, which allows them to retain free moisture. The spice cinnamon is a dried bark that naturally contains polysaccharides, while fenugreek contains up to 30 % mucus, which also has a high moisture-absorbing capacity. With such a low serum separation, the stabilizing effect is sufficient to prevent spontaneous whey separation. Based on the results of the rheological properties of the product, it was established that fermented milk pastes belong to viscoplastic systems with a normal consistency. There was a slight difference in the shear stress index for pastes based on fermented milk low-fat soft dietary cheese and sour cream with a fat mass fraction of 20 % – by an average of 50 Pa. This characteristic is due to the hydrophilic characteristics of the protein. The area of practical use of the research results: scientific research concerns the technology of dairy products in the food industry. Innovative technological product: the obtained scientific result is an opportunity to improve the technological process of fermented milk products. The scope of implementation of an innovative technological product: the results obtained give grounds to assert the ability to translate into a real industrial creation.

scholarly journals Improving the texture and rheology of set and stirred kombucha fermented milk beverages by addition of transglutaminase

Mljekarstvo ◽  
2021 ◽  
Vol 71 (3) ◽  
pp. 155-164
Author(s):  
Mirela Iličić ◽  
Keyword(s):  
Hysteresis Loop ◽  
Rheological Properties ◽  
Control Sample ◽  
Great Influence ◽  
Fermented Milk ◽  
Milk Products ◽  
Loop Area ◽  
Hysteresis Loop Area ◽  
Sample Set ◽  
Fermented Milk Products

The possibilities of manufacturing fermented milk beverages by applying kombucha inoculum concentrated by evaporation and with addition of transglutaminase have been investigated. The main aims of this study were to investigate influence of concentrated kombucha inoculum and the addition of transglutaminase (TG) on textural, rheological and sensory properties of set and stirred fermented milk beverages. The results showed that the addition of transglutaminase had a great influence on textural characteristics and rheological properties of kombucha fermented milk beverages. Firmness and consistency of kombucha fermented milk products were significantly increased with the incorporation of TG compared to the control sample. Set samples with TG addition had approximately 90 % higher hysteresis loop area compared to stirred samples, while hysteresis loop area of stirred samples without TG was 60 % lower compared to set samples. The enzymatic treatment of milk with TG improved texture, rheology and sensorial characteristics of set and stirred fermented milk beverages obtained by concentrated kombucha inoculum.

scholarly journals DEVELOPMENT OF THE BIOTECHNOLOGY OF STREPTOCOCCUS THERMOPHILUS BACTERIA AS PRODUCERS OF EXOPOLYSACCHARIDESDEVELOPMENT OF THE BIOTECHNOLOGY OF STREPTOCOCCUS THERMOPHILUS BACTERIA AS PRODUCERS OF EXOPOLYSACCHARIDES

2020 ◽  
Vol 14 (3) ◽  
Author(s):  
O. Naumenko ◽  
S. Danylenko ◽  
L. Bal-Prylypko ◽  
S. Gunko ◽  
I. Melnik
Keyword(s):  
Rheological Properties ◽  
Growth Medium ◽  
Streptococcus Thermophilus ◽  
Fermented Milk ◽  
Soluble Nitrogen ◽  
Milk Products ◽  
Protective Medium ◽  
Resistant Strains ◽  
Bacterial Preparations ◽  
Fermented Milk Products

On carrying out a screening, phage-resistant strains of Streptococcus thermophilus have been selected.  As producers of exopolysaccharides, they can be used to form the texture of fermented milk and improve the rheological properties of fermented milk products in a natural, effective, and safe way. It has been suggested to use analysis of the capsule-formation of strains as an express method to evaluate the rheological properties. The technology of the bacterial concentrate Iprovit – Streptococcus thermophilus with phage-resistant producers of exopolysaccharides has been developed. The following technological modes were used: growing in a growth medium with the ratio of carbohydrates to soluble nitrogen C:N=3.5; biomass stabilisation (10% inulin protective medium, freezing at minus 60±1°C for 16±2 h, drying for 24±2 h to 32±1°C, moisture content in the preparation not more than 5%). These modes allowed obtaining 7.83±0.02 g of bacterial concentrate from 1 dm3 of the growth medium. Depending on the strain of Streptococcus thermophilus, the dry bacterial concentrate contained 4.4×1011–1.1×1011 CFU/g of active microbiota. A technique has been developed that allows improving the rheological properties of fermented milk products by blending bacterial preparations to produce various products with concentrate of the Streptococcus thermophilus strain. The optimal formulations of the mixtures have been selected. This has made it possible to modify the rheological characteristics of fermented products without using other thickeners. The effective viscosity of the products obtained has been increased by 13.3–54.3%, depending on the formulation of the mixture. The biotechnology of the bacterial concentrate Iprovit – Streptococcus thermophilus was implemented at the State Research Enterprise of the Institute of Food Resources, National Academy of Agricultural Sciences of Ukraine. Manufacture of the concentrate is regulated by the regulatory documents developed and approved: TU 15.5-00419880-100:2010 “Dry and liquid fermenting cultures. Specifications,” Technological Instructions for production of the fermented cultures IPROVIT for TU 15.5-00419880-100:2010 “Dry and liquid fermenting cultures. Specifications.” The novelty of the technological solutions was confirmed by Copyright Registration Certificate No. 51033.

Low-lactose fermented milk products

2020 ◽  
pp. 10-12
Author(s):  
N.A. Tikhomirova ◽  
◽  
B.T. Nguyen ◽  
◽  
Keyword(s):  
Fermented Milk ◽  
Milk Products ◽  
Fermented Milk Products

Biologically active ingredients in fermented milk products

2020 ◽  
pp. 20-23
Author(s):  
G.A. Donskaya ◽  
◽  
V.M. Drozhzhin ◽  
◽  
◽  
...  
Keyword(s):  
Fermented Milk ◽  
Biologically Active ◽  
Active Ingredients ◽  
Milk Products ◽  
Fermented Milk Products

The value of functional fermented milk drinks in dietary and preventive nutrition

2021 ◽  
Vol 9 (16) ◽  
pp. 180-191
Author(s):  
Аlla Solomon ◽  
◽  
Iryna Bernyk ◽  
Мariana Bondar ◽  
◽  
...  
Keyword(s):  
Human Body ◽  
Fermented Milk ◽  
The Body ◽  
Biologically Active ◽  
Milk Product ◽  
Negative Effects ◽  
Milk Products ◽  
Adverse Environmental Conditions ◽  
Functional Components ◽  
Fermented Milk Products

State policy in the field of healthy nutrition is a timely and vital, because inadequate nutrition for the physical needs of the body poses a threat to national security today. The article analyzes the state of nutrition of the population of Ukraine in recent years, which is marked by negative trends, both in relation to energy adequacy and in relation to the chemical composition of diets. It is proven that the harm to health is caused by insufficient intake of vitamins, minerals and trace elements, resulting in reduced physical and mental performance, resistance to various diseases, increased negative effects on the body of adverse environmental conditions, harmful production factors, nervous and emotional stress and stress. The purpose of this work is to scientifically substantiate the composition of a fermented milk product enriched with sprouted barley grains and rosehip syrup, which allows improving the structure of the human nutrition through the use of functional ingredients and facilitating the adaptation of the human body to adverse external conditions. Experts associate the positive effect of fermented milk products for the human body with the appearance in them of physiologically active functional components, which are also useful in a physiological form. The value of fermented milk products in functional nutrition is determined primarily by the unique composition of microflora, food and biological value of products. Speaking about the nutritional value of fermented milk products, it is necessary to consider in detail the nutritional substances that make up its composition. In the lifr process of lactic acid bacteria, a complex of biologically active substances (enzymes, lactic and acetic acids, antibiotic substances) is accumulating. Dietary fermented milk products improve metabolism, stimulate the secretion of gastric juice, stimulate the appetite. Improving the health of the human body and ensuring its active life through the use of fermented milk products with functional properties is a new promising direction in medicine and nutrition, as its integral part.

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