scholarly journals Influence of flaxseed components on fermented dairy product properties

2018 ◽  
Vol 36 (No. 1) ◽  
pp. 51-56 ◽  
Author(s):  
Kristina Bialasová ◽  
Irena Němečková ◽  
Jan Kyselka ◽  
Jiří Štětina ◽  
Kateřina Solichová ◽  
...  

The addition of flaxseed meal and flaxseed oil on the growth and viability of Lactobacillus acidophilus CCDM 151 and yoghurt culture CCDM 21 during cold storage in fermented milk was tested. It was found that the oil addition in the amount of 0.6% w/w in milk did not influence the growth and acid production of Lactobacillus acidophilus CCDM 151, while the acidification activity of yoghurt culture was slightly lower compared to pure milk and connected with lower growth of Streptococcus thermophilus. On the contrary the addition of meal in amount of 7.6% w/w into milk stimulated the growth and acid production of Lactobacillus acidophilus CCDM 151. The viability of both tested cultures during one month storage of fermented milks at 5 ± 1°C was not influenced by the oil supplementation but the addition of meal decreased their viability significantly. The unusual volatile compounds acetone and butane-2-on were detected by SPME-GC in yoghurt with meal. Unlike oil, the addition of flaxseed meal increased the yoghurt firmness and influenced negatively yoghurt taste and flavour.

1993 ◽  
Vol 56 (4) ◽  
pp. 320-322 ◽  
Author(s):  
G. F. de VALDEZ ◽  
G. S. de GIORI

Three mild-fermented milk beverages prepared from soy milk and cow's milk were compared for their ability to preserve the cell viability of Lactobacillus acidophilus during refrigerated storage, in associative growth with Lactobacilus casei and Streptococcus thermophilus. The highest survival rate was obtained by using soy milk as substrate. The presence of L. casei in the starter culture had no influence on the viability of L. acidophilus, while the streptococcal cells showed a harmful effect. The culture activity measured as proteolysis and acid production remained fairly constant during the shelf life, despite the variations in colony counts observed for the different fermented milks analyzed.


2016 ◽  
Vol 4 (1) ◽  
Author(s):  
Lan Yang ◽  
Yun Chen ◽  
Zhiwei Li ◽  
Yudong Shi ◽  
Zhouyong Li ◽  
...  

Lactobacillus acidophilus MN-BM-F01 was originally isolated from a traditional fermented dairy product in China. The characteristics of this bacterium are its low post-acidification ability and high acid-producing rate. Here, we report the main genome features of L. acidophilus MN-BM-F01.


Author(s):  
Ayşe Gunes-Bayir ◽  
Mehmet Gültekin Bilgin ◽  
Duygu Guclu ◽  
Sultan Pogda ◽  
Agnes Dadak

AbstractNovel functional food products might be an easy accessible and eligible approach to help reduce the risk of severe viral infections including SARS-CoV-2. Hence a product containing probiotics, propolis and cinnamon was developed and interferences of the ingredients were characterized. Yogurts were prepared using starter cultures with propolis (0.03%) and cinnamon in various concentrations (0.3%, 1%, and 2.5%). Bifidobacterium animalis ssp. lactis, Lactobacillus acidophilus, Streptococcus thermophilus, and Lactobacillus delbrueckii subsp. bulgaricus were used as microorganisms for yogurt production. Chemical analysis revealed a decline of fat matter in the presence of propolis and/or cinnamon. Propolis had statistically significant suppressive effects on Bifidobacterium animalis ssp. lactis as well as on Lactobacillus delbrueckii subsp. bulgaricus numbers (p < 0.05). These effects were diminished in the presence of increasing cinnamon concentrations. For Lactobacillus acidophilus a statistically significant reducing effect on the number of colonies was observed in all products investigated. Nevertheless all samples met the standard of recommended level of ≥ 106 viable cells/g of a product. Propolis showed an inverse effect on Streptococcus thermophilus by increasing its colony numbers in yogurts. The probiotic yogurt samples containing propolis (0.03%) and cinnamon (2.5%) gained the highest number of points in the sensory evaluation compared to control.


2021 ◽  
Vol 8 (2) ◽  
pp. 008-013
Author(s):  
Faiza Iqbal ◽  
Muhammad Anees Ur Rehman ◽  
Mah Ahfaq

Yoghurt is a fermented dairy product with conspicuous consumption around the world due to its pronounced health benefits. Yoghurt is defined as the food produced by culturing the milk in controlled conditions that contain lactic acid-producing bacteria (Lactobacillus bulgaricus, Streptococcus thermophilus. Consumer acceptability of Yoghurt is high due to its health benefits and sensory attributes. It provides 40% calcium and 30-45% phosphorus of daily requirement. All essential amino acids (proline and glycine) are present in Yoghurt. The biological value of milk proteins present in Yoghurt is high. It is considered a rich source of high-quality protein. Health benefits associated with Yoghurt are to improve the gastrointestinal digestion and immune system of humans. Yoghurt is enriched with proteins, carbohydrates, minerals (calcium and phosphorus), and vitamins (vitamin A, thiamine, riboflavin, niacin, folate and cobalamin). Yoghurt protein and its peptides have many physiological impacts as well as nutritional value. The only deficiency in Yoghurt is a lack of dietary fibre. The review emphasizes the addition of dietary fibre in Yoghurt to boost up its health benefits.


2021 ◽  
Vol 51 (1) ◽  
pp. 17-28
Author(s):  
Lyudmila Zakharova ◽  
Marina Gorbunchikova

Introduction. Many strains used in dairy industry are antagonists of harmful microflora. Logically, a successful combination of several cultures can enhance the bactericidal effect. The present research objective was to develop a fermented milk drink using a prebiotic to stimulate a multicomponent starter culture. Study objects and methods. The research featured pure strains of Bifidobacterium bifidum strain No. 791 and Lactobacillus acidophilus (VZ-AP), as well as Bio-fi Pro WR 400 beet fiber. The study involved standard and conventional research methods. Results and discussion. The first stage defined the optimal ratios of B. bifidum and L. acidophilus for a two-component starter culture, as well as the optimal production method and their antibiotic activity. The second stage featured the functional and technological properties of the prebiotic beet fiber and its effect on the development of microorganisms in the starter. The study resulted in the main production parameters and a technological scheme for the production of fermented dairy product. Conclusion. The paper introduces a new technology for production of a functional fermented milk product fortified with probiotics and prebiotics, as well as approved technical documentation. The new functional fermented dairy product was based on a starter culture that combined a liquid concentrate of B. bifidum strain No. 791 and a starter culture of L. acidophilus (VZ-AP). The optimal ratio of microbial cultures was 5:1, respectively. The starter strain proved to have a high antibiotic activity. Prebiotic beet fiber Bio-fi Pro WR 400 could be recommended as a product stabilizer at the optimal amount of 0.7% by weight of standardized milk.


2019 ◽  
Vol 16 (33) ◽  
pp. 241-247
Author(s):  
F. DIKHANBAYEVA ◽  
G. ZHAKSYLYKOVA ◽  
L. SYZDYKOVA ◽  
Z. SMAILOVA ◽  
E. TASTURGANOVA

The manuscript discusses the possibility of producing a dairy product based on special-purpose camel milk. Specialized nutrition is intended for all population groups and risk groups due to the content of targeted functional ingredients and balanced or enriched composition of food substances. The risk group, in addition to children and persons with impaired health, are elderly people, for whom a special nutrition is provided. Probiotic ferments are used in the production of fermented dairy products, as well as in butter and cheese making. The leaven is introduced into the product and allowed to develop in it under controlled conditions. In the process of fermentation taking place in this way, bacteria form substances that give the fermented milk product its characteristic properties, such as acidity (pH), taste, aroma, and consistency. The decrease in pH occurring during fermentation by lactose bacteria to lactic acid has a preservative effect on the product while improving nutritional value and digestibility. Unlike cow's milk, camel's milk is more saturated with vitamins and polyunsaturated fatty acids. It is a healing biological natural medicine, as well as an immune modulator for the human body. Camel milk is the common food for pastoral society and a rich source of nutrients with therapeutic value. Milk processing can improve the nutritional properties, increase the digestibility of macromolecules and make it safe from harmful microbes. The optimal ratio (1:1) of probiotic ferments for fermented milk drinks – new Bio Drinks based on camel milk - was established.


2019 ◽  
Vol 9 (3) ◽  
pp. 95-103
Author(s):  
Asmaa Labtar ◽  
Saliha Larouci ◽  
Amel Guermouche ◽  
Farid Bensalah

Streptococcus thermophilus and Lactobacillus belong to a widely-knowngroup of bacteria that have been frequently used as starter bacteria in fermented dairy products. The aim of this study was to isolate, characterize andidentify of lactic acid bacteria (LAB) from raw cow’s fermented milk and‘Smen’ (a traditional steppe butter) in steppic area of Algeria to study someof their important enzyme-producing attributes. All selected strains of lacticacid bacteria (LAB) were identified and typed by phenotypic and genotypiccriteria.Six strains were identified as cocci thermophilic LAB and two of themwere selected and identified by using polymerase chain reaction (PCR) amplification for proA gene. Six strains of lactobacilli were identified as Lactobacillus genus using 16S rRNA gene. Species identification was performed by 16SrRNA gene sequencing and sequences were analysed using Basic LengthAlignment Search Tool (BLAST) programs. A phylogenetic tree based on 16SrRNA genes was constructed by the neighbor-joinin method.S. thermophilusstrains screened for their ability to produce lactic acid, titratable acidity, andpH was measured at 2h intervals, proteolytic activity in milk was examined.In another part, the four selected Lactobacillus were able to hydrolyze X-Galby production of β-galactosidase enzyme. All strains of LAB exhibited production of diacetyl. Overall, this study provides bacterial strains having potentialfor dairy industry.


1989 ◽  
Vol 56 (1) ◽  
pp. 155-157 ◽  
Author(s):  
K. S. Babu ◽  
R. S. Singh ◽  
H. Chander

The major problem encountered in the dairy industry is due to the failure of starter in the manufacture of fermented dairy products such as cheese, Yogurt buttermilk and also the Indian fermented milk products srikhand and dahi, in terms of low acid production and absence of flavour and aroma. Usually, in such cases the presence of antibiotics is detected. Little work has been done on the effect of antibiotic resistance in the starter on flavour production, though many workers have investigated acid production and proteolytic activity (Kondratenko et al. 1978 Ottogalli et al. 1975; Shahani & Harper 1958; Wilkowske & Krienke, 1951). The present investigation has been undertaken to develop antibiotic-resistant strains of lactic streptococci, i.e. Streptococcus lactis biovar. diacetylactis and Lactobacillus delbrueckii subsp. bulgaricus which could be used for the preparation of fermanted milk products.


Author(s):  
Luciana Carvalho Fino ◽  
Fabíola Lima Pena ◽  
Maria Carolina Pelatieri Valle ◽  
Thais Ramos Silva ◽  
Vivian Cristina Cruz Rodrigues ◽  
...  

O exercício físico de alta intensidade está relacionado com diversas alterações sistêmicas que podem prejudicar a performance do indivíduo, tais como: a queda da imunidade, a perda de massa muscular, a insônia, entre outros. Os probióticos, quando administrados regularmente para esse público, podem reduzir os sintomas relacionados ao overtraining. O presente estudo buscou selecionar uma cepa probiótica para empregar em uma bebida esportiva (a base de leite fermentado), contendo elevada quantidade de compostos fenólicos e adicionada de cepas probióticas, sendo utilizadas como principal critério de escolha a sobrevivência da mesma após digestão simulada. Foram avaliados os probióticos Lactobacillus casei (BGP93), Lactobacillus rhamnosus (SP1) e Lactobacillus acidophilus (LA3) e Bifidobacterium animalis subsp. lactis (BB12), utilizando-se como cultura starter o Streptococcus thermophilus (TA072). Em paralelo foi realizada avaliação da resistência das culturas probióticas em solução adicionada de suco de romã, tendo em vista a potencial atividade antimicrobiana desta fruta. Neste teste foi observado que as culturas probióticas não foram inibidas pelo suco de romã, com exceção do L. acidophilus LA3. Para digestão in vitro foi utilizado protocolo validado composto pelas fases gástrica e entérica, a viabilidade dos probióticos na bebida esportiva foi acompanhada durante armazenamento refrigerado a 6 °C por 28 dias e a sobrevivência foi avaliada, por meio de contagem seletiva em DeMan, Rogosa & Sharpe (MRS) ágar acidificado e incubação em anaerobiose. Os resultados demonstraram que o Lactobacillus casei cepa BGP93 apresentou adequada viabilidade durante o armazenamento e maior taxa de sobrevivência à digestão, quando comparado aos demais probióticos, representando um bom candidato para a elaboração da bebida esportiva. Palavras chave: Leite Fermentado. Compostos Fenólicos. Alimento Funcional. Viabilidade de Probióticos.    Abstract High-intensity physical exercise is related to several systemic alterations that may impair the individual's performance, such as immunity depletion, muscle mass loss, insomnia, among others. Probiotics, when given regularly to this public, may reduce symptoms related to overtraining. The present study aimed to select a probiotic strain for use in a sports drink (based on fermented milk) containing a high amount of phenolic compounds, and added probiotic strains, being the main criterion of choice the survival of the strain after simulated digestion. The probiotics Lactobacillus casei (BGP93), Lactobacillus rhamnosus (SP1) and Lactobacillus acidophilus (LA3) and Bifidobacterium animalis subsp. lactis (BB12), using as starter culture Streptococcus thermophilus (TA072). At the same time, resistance evaluation of probiotic cultures in pomegranate juice solution was carried out, considering the potential antimicrobial activity of this fruit. In this test, it was observed that probiotic cultures were not inhibited by pomegranate juice, except for L. acidophilus LA3. For in vitro digestion a validated protocol consisting of gastric and enteric phases was used, the viability of probiotics in the sports drink was monitored during cold storage at 6 ° C for 28 days and survival was evaluated by selective counting in acidified DeMan, Rogosa & Sharpe (MRS) agar and incubation in anaerobiosis. The results showed that Lactobacillus casei strain BGP93 showed adequate viability during storage and higher survival rate to digestion when compared to other probiotics, representing a good candidate for the sport drink preparation Keywords: Fermented Milk. Phenolic Compounds. Functional Food. Probiotics Viability.


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