Identification of Lactobacillus delbrueckii subsp. bulgaricus in starter culture in production of cultured milk products

2013 ◽  
Vol 39 (3) ◽  
pp. 281-283
Author(s):  
V. I. Semenikhin ◽  
S. A. Yurik
Keyword(s):  
Starter Culture ◽  
Lactobacillus Delbrueckii ◽  
Milk Products ◽  
Lactobacillus Delbrueckii Subsp

A Washed-Curd Goat's Cheese as a Vehicle for Delivery of a Potential Probiotic Bacterium: Lactobacillus delbrueckii subsp. lactis UO 004

2005 ◽  
Vol 68 (12) ◽  
pp. 2665-2671 ◽  
Author(s):  
M. FERNANDA FERNÁNDEZ ◽  
TERESA DELGADO ◽  
SOLEDAD BORIS ◽  
ANA RODRÍGUEZ ◽  
COVADONGA BARBÉS
Keyword(s):  
High Performance ◽  
Starter Culture ◽  
Food Product ◽  
Probiotic Strain ◽  
Probiotic Bacterium ◽  
Lactobacillus Delbrueckii ◽  
Probiotic Properties ◽  
Acid And Bile Tolerance ◽  
Probiotic Food ◽  
Lactobacillus Delbrueckii Subsp

This study characterizes the probiotic properties of Lactobacillus delbrueckii subsp. lactis UO 004 and examines its suitability for making cheese. This strain was isolated from infant feces and shows interesting features, such as acid and bile tolerance, adherence to intestinal epithelial cells, and inhibition of the growth of certain enteropathogens, that support its potential use as a probiotic strain. In this regard, the suitability of a washed-curd cheese (Vidiago type) made with goat's milk as a delivery system for this probiotic strain was assessed. Lactobacillus delbrueckii subsp. lactis UO 004 was incorporated into a starter culture (IPLA 001). Changes in the overall composition of control and experimental cheeses were determined during ripening through bacteriological, chemical, high-performance liquid chromatography, and gas chromatography analyses. Slight changes in the gross composition and appreciable differences in the flavor compounds profile were observed between control and experimental cheeses. This strain was capable of surviving at high cell numbers (108 to 109 CFU/g) in cheeses after 28 days of ripening without adversely affecting sensory criteria or appearance of the cheese, thus satisfying the criteria for a probiotic food product.

scholarly journals Detoxification of Aflatoxin M1 in Milk by Lactic Acid Bacteria

2021 ◽  
Author(s):  
Sanaz Seyedjafarri
Keyword(s):  
Animal Feed ◽  
Starter Culture ◽  
Streptococcus Thermophilus ◽  
The Body ◽  
Lactobacillus Delbrueckii ◽  
Aflatoxin M1 ◽  
Milk Products ◽  
University Department ◽  
Dairy Animal ◽  
Positive Effect

Background: Aflatoxin M1 is a highly toxic and carcinogenic compound which is found in milk and milk products and it is a hydorxylated metabolite of Aflatoxin B1. When the dairy animal digested AFB1 contaminated feed, it is changed to aflatoxin M1 and transferred to tissues and milk. Aflatoxin M1 is less carcinogenic than AFB1, but it is acutely hepatotoxic as AFB1. Liver is their main target organ in the body. It has been calculated approximately that 0.3- 6.2% of presented AFB1 in animal feed transferred as aflatoxin M1 in milk. Occurrence of AFM1 in milk and milk products is a big concern. Therefore, several countries have standardized the maximum levels of AFM1 in milk and milk products. Methods: In this experiment, the ability of yoghurt bacteria to degrade AFM1 levels in milk and yoghurt were analysed. The starter culture of yoghurt contains Streptococcus thermophilus and Lactobacillus delbrueckii subsp. Bulgaricus (1:1). The experiment is carried out in Glasgow Caledonian University, department of life science in 2010. Result: These bacteria showed the higher binding ability between 90- 100% in milk samples whereas no considerable reduction was observed in yoghurt samples. In some yoghurt samples, an increase of AFM1 level was detected but in overall, concentration of AFM1 was stable in yoghurt. Also, the fat content of milk and yoghurt did not have any negative or positive effect on the concentration of AFM1 in milk and yoghurt.

scholarly journals Enzymatic activity in fermented milk products containing bifidobacteria

2011 ◽  
Vol 23 (No. 6) ◽  
pp. 224-229
Author(s):  
I. Trojanová ◽  
V. Rada
Keyword(s):  
Enzymatic Activity ◽  
Streptococcus Thermophilus ◽  
Fermented Milk ◽  
Substantial Effect ◽  
Lactobacillus Delbrueckii ◽  
Galactosidase Activity ◽  
Milk Products ◽  
Bifidobacterium Animalis ◽  
Lactobacillus Delbrueckii Subsp ◽  
Fermented Milk Products

Streptococcus thermophilus, Lactobacillus delbrueckii subsp. bulgaricus and Bifidobacterium animalis strains were tested for á-galactosidase, â-galactosidase and á-glucosidase activities. Commercially available yoghurts with bifidobacteria were also tested. While bifidobacteria produced all the enzymes mentioned above, lactobacilli and streptococci exhibited only â-galactosidase activity. In yoghurts, only â-galactosidase was detected, while practically no á-galactosidase, and in one product only little á-glucosidase activities were exhibited. It could be concluded that the consumption of bifidobacteria via yoghurt has probably no substantial effect on the digestion of saccharides in the gut.  

Exopolysaccharides Produced by Lactic Acid Bacteria of Kefir Grains

2002 ◽  
Vol 57 (9-10) ◽  
pp. 805-810 ◽  
Author(s):  
Ginka I. Frengova ◽  
Emilina D. Simova ◽  
Dora M. Beshkova ◽  
Zhelyasko I. Simov
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Starter Culture ◽  
Streptococcus Thermophilus ◽  
Lactobacillus Helveticus ◽  
Lactobacillus Delbrueckii ◽  
Monomer Composition ◽  
Kefir Grains ◽  
The One ◽  
Lactobacillus Delbrueckii Subsp

A Lactobacillus delbrueckii subsp. bulgaricus HP1 strain with high exopolysaccharide activity was selected from among 40 strains of lactic acid bacteria, isolated from kefir grains. By associating the Lactobacillus delbrueckii subsp. bulgaricus HP1 strain with Streptococcus thermophilus T15, Lactococcus lactis subsp. lactis C15, Lactobacillus helveticus MP12. and Sacharomyces cerevisiae A13, a kefir starter was formed. The associated cultivation of the lactobacteria and yeast had a positive effect on the exopolysaccharide activity of Lactobacillus delbrueckii subsp. bulgaricus HP1. The maximum exopolysaccharide concentration of the starter culture exceeded the one by the Lactobacillus delbrueckii subsp. bulgaricus HP1 monoculture by approximately 1.7 times, and the time needed to reach the maximum concentration (824.3 mg exopolysacharides/l) was shortened by 6 h. The monomer composition of the exopolysaccharides from the kefir starter culture was represented by glucose and galactose in a 1.0:0.94 ratio, which proves that the polymer synthesized is kefiran.

Exopolysaccharides de Lactobacillus delbrueckii subsp. bulgaricus

2002 ◽  
Vol 22 (1-2) ◽  
pp. 143-149 ◽  
Author(s):  
Sandrine Petry ◽  
Satanislav Dusko Ehrlich ◽  
Emmanuelle Maguin
Keyword(s):  
Lactobacillus Delbrueckii ◽  
Lactobacillus Delbrueckii Subsp

scholarly journals Immunobiotic Feed Developed with Lactobacillus delbrueckii subsp. delbrueckii TUA4408L and the Soymilk By-Product Okara Improves Health and Growth Performance in Pigs

2021 ◽  
Vol 9 (5) ◽  
pp. 921
Author(s):  
Yoshihito Suda ◽  
Nana Sasaki ◽  
Kyoma Kagawa ◽  
Mariano Elean ◽  
Binghui Zhou ◽  
...  
Keyword(s):  
Growth Performance ◽  
Lactobacillus Delbrueckii ◽  
In Vivo Studies ◽  
Intestinal Immunity ◽  
Positive Effects ◽  
Markers Of Inflammation ◽  
Immune Health ◽  
Tlr4 Activation ◽  
Lactobacillus Delbrueckii Subsp

Lactobacillus delbrueckii subsp. delbrueckii TUA4408L is able to differentially modulate the innate immune response of porcine intestinal epithelial cells triggered by TLR4 activation. This strain also has a remarkable ability to grow on plant substrates. These two immunological and biotechnological characteristics prompted us to evaluate whether the soymilk by-product okara fermented with the TUA4408L strain can serve as an immunobiotic feed with the ability to beneficially modulate the intestinal immunity of piglets after weaning to improve their productivity. Our in vivo studies demonstrated that the administration of immunobiotic TUA4408L-fermented okara feed significantly increased piglet growth performance and meat quality. These positive effects were associated with the ability of the TUA4408L-fermented okara feed to beneficially modulate both intestinal microbiota and immunity in pigs. The immunobiotic feed improved the abundance of the beneficial bacteria Lactobacillus and Lactococcus in the gut of pigs, reduced blood markers of inflammation, and differentially regulated the expression of inflammatory and regulatory cytokines in the intestinal mucosa. These findings indicate that the immunobiotic TUA4408L-fermented okara feed could be an economical and environmentally friendly option to improve the growth performance and immune health of pigs.

The prolyl aminopeptidase from Lactobacillus delbrueckii subsp. bulgaricus belongs to the α/β hydrolase fold family

1999 ◽  
Vol 1429 (2) ◽  
pp. 501-505 ◽  
Author(s):  
Fabienne Morel ◽  
Christophe Gilbert ◽  
Christophe Geourjon ◽  
Jacques Frot-Coutaz ◽  
Raymond Portalier ◽  
...  
Keyword(s):  
Lactobacillus Delbrueckii ◽  
Prolyl Aminopeptidase ◽  
Fold Family ◽  
Hydrolase Fold ◽  
Lactobacillus Delbrueckii Subsp
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