Occurrence and dominance of yeast species in naturally fermented milk from the Tibetan Plateau of China

2010 ◽  
Vol 56 (9) ◽  
pp. 707-714 ◽  
Author(s):  
Mei Bai ◽  
Manjun Qing ◽  
Zhuang Guo ◽  
Yong Zhang ◽  
Xia Chen ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Yeast Species ◽  
Debaryomyces Hansenii ◽  
Fermented Milk ◽  
Cow Milk ◽  
The Tibetan Plateau ◽  
Microbiological Analysis ◽  
Sequencing Analysis ◽  
Milk Products ◽  
Fermented Milk Products

To determine which yeasts are present in the naturally fermented milks of China, 69 samples made by the nomads of Tibet were collected from the Tibetan Plateau in China. From these samples, 225 strains of yeast were isolated and identified using conventional microbiological analysis and gene sequencing analysis of the D1/D2 domain of the large subunit (26S) ribosomal DNA. The results showed that the total concentration of yeasts in these samples ranged from 5.01 to 8.97 log10 colony-forming units (CFU)/mL (6.91 ± 1.02 log10 CFU/mL; mean ± SD). The number of cultivable yeasts was higher in the samples from Qinghai (7.55 ± 0.75 log10 CFU/mL) than those from Tibet (6.21 ± 0.79 log10 CFU/mL, P < 0.05). Moreover, there were 15 phylotypes in these 69 samples. Among these phylotypes, Kluyveromyces marxianus (49.3%, frequency percentage), Saccharomyces cerevisiae (62.3%), and Pichia fermentans (46.4%) appeared frequently and can be considered the most common culturable species in naturally fermented milk products. Traditional fermented Mongolian cow milk featured a wide diversity of yeast species, including Issatchenkia orientalis , Kazachstania unisporus , Rhodotorula mucilaginosa , Candida pararugosa , Torulaspora delbrueckii , Geotrichum sp., Kazachstania unisporus , Geotrichum fragrans , Debaryomyces hansenii , Yarrowia lipolytica , Trichosporon gracile , and Pichia membranifaciens . This study provides new data on yeast composition in naturally fermented milk and shows the yeast biodiversity of fermented milk products from the Tibetan Plateau of China.

scholarly journals Selection of raw materials and main components for production of sour milk drink from goat’s milk

2021 ◽  
Vol 16 (6) ◽  
pp. 13-19
Author(s):  
M. A. Gasheva
Keyword(s):  
New Technologies ◽  
Fermented Milk ◽  
Cow Milk ◽  
Main Task ◽  
Milk Products ◽  
Goat’S Milk ◽  
Goat's Milk ◽  
Main Components ◽  
Selection Of ◽  
Fermented Milk Products

Fermented milk products are the main components of functional nutrition. In response to the increasing demand of the population for fermented milk products, industry experts strive to expand the assortment, develop the latest technologies, and create new types of fermented milk drinks. The main task of creating industrial technologies is a beneficial effect on all organs of the human body. The study of the diversity of the microflora of fermented milk products allows the development of new technologies, giving the products special functionality. Since ancient times mankind has used fermented milk products not only in nutrition, but as a remedy for many diseases. Goat’s milk satisfies the need for a qualitative and quantitative ratio of nutrients. It has unique properties due to its protein composition, such as easy digestibility of milk, therapeutic and dietary properties, natural homogenization, hypoallergenic properties. Taking into account the increased demand for the processing of goat’s milk in Russia, the development of a fermented milk drink technology is urgent. A fermented milk drink based on raw goat’s milk will differ in quality characteristics, functionality and attractiveness for consumers of all age groups of the population, if compared with similar ones made from raw cow milk. The composition and properties of goat’s milk of local breeds of goats, as the main raw material for the production of a fermented milk drink with a functional orientation, have been studied in the research. The selection of starter cultures has been carried out, the use of which contributes to the absence of a pronounced taste and aroma characteristic of dairy products from goat’s milk, and also gives functional properties to the fermented milk drink.

TGF-β activity in cow milk and fermented milk products: An in vitro bioassay with oral fibroblasts

2018 ◽  
Vol 95 ◽  
pp. 15-21 ◽  
Author(s):  
Layla Panahipour ◽  
Alexandra Stähli ◽  
Nadja Haiden ◽  
Reinhard Gruber
Keyword(s):  
Fermented Milk ◽  
Cow Milk ◽  
In Vitro Bioassay ◽  
Milk Products ◽  
Fermented Milk Products

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.

scholarly journals Effects of ultrasound on the fermentation profile of fermented milk products incorporated with lactic acid bacteria

2019 ◽  
Vol 90 ◽  
pp. 1-14 ◽  
Author(s):  
A.M.N.L. Abesinghe ◽  
N. Islam ◽  
J.K. Vidanarachchi ◽  
S. Prakash ◽  
K.F.S.T. Silva ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Fermented Milk ◽  
Milk Products ◽  
Fermentation Profile ◽  
Fermented Milk Products
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