scholarly journals The influence of whey, whey component and malt on the growth and acids production of lactobacilli in milk

2014 ◽  
Vol 32 (No. 6) ◽  
pp. 526-531 ◽  
Author(s):  
Š. Horáčková ◽  
P. Sedláčková ◽  
M. Sluková ◽  
M. Plocková
Keyword(s):  
Acetic Acid ◽  
Lactic Acid ◽  
Whey Protein ◽  
Lactobacillus Acidophilus ◽  
Acid Production ◽  
Lactobacillus Casei ◽  
Whey Protein Concentrate ◽  
Protein Concentrate ◽  
Different Types ◽  
Plant Sources

The effect of whey powder, whey protein concentrate, caseinomacropeptide, and malt addition into milk on the growth and acid production of lactobacilli (Lactobacillus casei Lafti L-26, Lactobacillus acidophilus CCDM 151, and Lactobacillus casei CCDM 198) was evaluated. The ability of these strains to use different types of saccharides from milk and plant sources was also tested. Glucose, galactose, fructose and maltose were utilised by all tested strains. The results showed that the addition of malt positively affected the growth of lactobacilli strains compared to the growth in milk enriched by whey ingredients. The addition of malt increased significantly the production of d(–)isomer of lactic acid by Lactobacillus acidophilus CCDM 151 and Lactobacillus casei CCDM 198 and the production of acetic acid by Lactobacillus casei CCDM 198.  

scholarly journals Influence of cultivation conditions on the growth of Lactobacillus acidophilus, Bifidobacterium sp., and Streptococcus thermophiles, and on the production of organic acids in fermented milks

2014 ◽  
Vol 32 (No. 5) ◽  
pp. 422-429 ◽  
Author(s):  
J. Chramostová ◽  
R. Mošnová ◽  
I. Lisová ◽  
E. Pešek ◽  
J. Drbohlav ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Organic Acids ◽  
Whey Protein ◽  
Lactobacillus Acidophilus ◽  
Streptococcus Thermophilus ◽  
Fermented Milk ◽  
Whey Protein Concentrate ◽  
Optical Isomers ◽  
Protein Concentrate ◽  
Fermentation Time

The parameters influencing the formation of organic acids and the ratio between the optical isomers of lactic acid were evaluated. Five different factors were tested, namely the form of starter, inoculum, temperature of fermentation, time of fermentation, and enhanced non-fat dry matter or addition of whey protein concentrate. Out of them, optimal conditions were chosen for the preparation of fermented milk beverage with ABT culture (Lactobacillus acidophilus, Bifidobacterium sp., Streptococcus thermophilus) with a lowered content of d(–)-lactic acid. The inoculum of bifidobacteria had the only significant effect on the ratio between lactic acid isomers. When 1% v/w used, the ratio of d(–)-lactic acid to l(+)-lactic acid was 0.05. When 5% v/w used, the ratio was 0.02. The addition of dried skimmed milk (max. effect at 12% w/w) enhanced the growth of bifidobacteria, while whey protein concentrate was effective for the growth of lactobacilli. The optimal temperature and time of cultivation were 37°C and 17 ± 0.5 h, respectively.  

scholarly journals Development technologyof yogurt with coffee

2021 ◽  
Vol 23 (96) ◽  
pp. 61-66
Author(s):  
N. B. Slyvka ◽  
I. V. Skulska
Keyword(s):  
Lactic Acid ◽  
Whey Protein ◽  
Sugar Content ◽  
Titratable Acidity ◽  
Whey Protein Concentrate ◽  
Protein Concentrate ◽  
Instant Coffee ◽  
Organoleptic Characteristics ◽  
Rate Of Increase ◽  
Lactose Fermentation

Formulations of yogurt flavored with coffee with a sugar content of 4 and 6 % and instant coffee Nescafe Gold in the amount of 0.5, 0.7 or 0.9 % were developed. The possibility of including in the formulation of low-fat yogurts protein enrichments, namely dry whey protein concentrate WPC 80 Milkiland in the amount of 1.5 %. A five-point scale has been developed to assess the organoleptic characteristics of new types of yogurt. It was found that the score of the consistency of the samples differed and decreased with increasing coffee content from 0.5 to 0.9 %. The sugar content did not affect the consistency, but higher taste scores were obtained with coffee-flavored samples with the addition of 5 % sugar compared to 4 %. Yogurts with 0.7 % coffee and 4 % sugar and both yogurts with 0.9 % coffee had the lowest scores compared to other yogurt samples. Changes in titratable acidity during yogurt fermentation and during storage were studied. It was found that the highest rate of increase of titratable acidity was registered for sample 3, which at 4 h of fermentation reached 98 °T compared to others, which is explained by the content of 2.2–4.5 % chlorogenic acid and other organic acids in instant coffee. It was found that lactic acid accumulated during storage of yogurts with coffee. On the first day of storage, its content ranged from 0.135–0.200 %, and on the 15th day increased to 1.22–1.42 %. Such changes are natural, because lactic acid is a product of lactic acid microflora metabolism during lactose fermentation. It was investigated that the active acidity at the end of fermentation was 4.56 units. pH against control – 4.72 units. pH and had a higher rate of decline compared to control. This can be explained by the mass fraction of lactose, which in the whey protein concentrate is 36 %. Also, this protein enrichment contains a large number of carboxyl groups, which increases the acidity of the clot and the finished product. All test samples were found to have better rheological properties due to the use of 1.5 % whey protein concentrate and sugar in the formulations. The parameters of technological operations in the production of yogurt with coffee are substantiated.

scholarly journals Effect of whey protein concentrate and endogenous lactic acid bactéria in low-fat Coalho cheese

2020 ◽  
Vol 9 (5) ◽  
pp. e53953125
Author(s):  
Gizele Almada Cruz ◽  
Laura Maria Bruno ◽  
Gleice Bezerra de Oliveira Gadelha ◽  
Paulo Maciel Neto ◽  
Layane Maciel Alves ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Whey Protein ◽  
Physicochemical Characteristics ◽  
Fat Content ◽  
Whey Protein Concentrate ◽  
Protein Concentrate ◽  
Low Fat ◽  
Fat Replacers ◽  
Texture Profile

The fat content and lactic ferment are two components that positively influence cheese sensorial properties. However, the consumption of low fat content foods is trending among the consumers. Researches about fat replacers applications have been used as an alternative to elaborate low-fat cheeses associated with good sensorial acceptance. In the same way, the use of specific lactic ferments elaborated from lactic acid bacteria isolated from the cheeses themselves is an alternative to obtain safe products, without promoting fundamental changes in its sensorial characteristics. With aim to evaluate the texture profile (Firmness, Elasticity, Cohesiveness and Chewability) and physicochemical characteristics of low-fat Coalho cheese, the effect of whey protein concentrate - WPC (1, 2 and 3%) and endogenous lactic bacteria - ELB (1, 2 and 3%) was tested. The treatments on the Coalho cheese produced cheeses classified as low-fat (2.33% to 4.67%) and high in protein value (41.01% to 46.95%). The WPC concentrations showed significant effect (p < 0.05) in firmness, cohesiveness and chewability parameters. In conclusion, the use of the WPC as a fat replacer is viable in the Coalho cheese production. However, the addition of ELB as ferment does not influence the Coalho cheese properties.

scholarly journals Hardening Properties of Cheeses by Latilactobacillus curvatus PD1 Isolated from Hardened Cheese-Ddukbokki Rice Cake

2021 ◽  
Vol 9 (5) ◽  
pp. 1044
Author(s):  
Jeong A Kim ◽  
Geun Su Kim ◽  
Se Mi Choi ◽  
Myeong Seon Kim ◽  
Do Young Kwon ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Acid Production ◽  
Lactobacillus Casei ◽  
Leuconostoc Mesenteroides ◽  
The Other ◽  
Rice Cake ◽  
Two Samples ◽  
High Protease Activity

Hardening of cheese is one of major issues that degrade the quality of Home Meal Replacement (HMR) foods containing cheese such as Cheese-ddukbokki rice cake (CD, stir-fried rice cakes with shredded cheese). The quality of cheese, such as pH, proteolytic, and flavor properties, depends on various lactic acid bacteria (LAB) used in cheese fermentation. The hardening of cheese is also caused by LAB. In this study, various LAB strains were isolated from CD samples that showed rapid hardening. The correlation of LAB with the hardening of cheese was investigated. Seven of the CD samples with different manufacturing dates were collected and tested for hardening properties of cheese. Among them, strong-hardening of cheese was confirmed for two samples and weak-hardening was confirmed for one sample. All LAB in two strong-hardening samples and 40% of LAB in one weak-hardening sample were identified as Latilactobacillus curvatus. On the other hand, most LAB in normal cheese samples were identified as Leuconostoc mesenteroides and Lactobacillus casei. We prepared cheese samples in which L. curvatus (LC-CD) and L. mesenteroides (LM-CD) were most dominant, respectively. Each CD made of the prepared cheese was subjected to quality test for 50 days at 10 °C. Hardening of cheese with LC-CD dominant appeared at 30 days. However, hardening of cheese with LM-CD dominant did not appear until 50 days. The pH of the LC-CD was 5.18 ± 0.04 at 30 days, lower than that of LM-CD. The proteolytic activity of LC-CD sample was 2993.67 ± 246.17 units/g, higher than that of LM-CD sample (1421.67 ± 174.5 units/g). These results indicate that high acid production and high protease activity of L. curvatus might have caused hardening of cheese.

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