scholarly journals The Effect of Selected Factors on the Content of Fat-Soluble Vitamins and Macro-Elements in Raw Milk from Holstein-Friesian and Simmental Cows and Acid Curd Cheese (Tvarog)

Animals ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1800
Author(s):  
Jolanta Król ◽  
Agnieszka Wawryniuk ◽  
Aneta Brodziak ◽  
Joanna Barłowska ◽  
Beata Kuczyńska
Keyword(s):  
Starter Culture ◽  
Raw Milk ◽  
Summer Season ◽  
Starter Cultures ◽  
Retention Rates ◽  
Macro Elements ◽  
Holstein Friesian ◽  
Freeze Dried ◽  
Fat Soluble Vitamins

The study was conducted to determine the content and retention of selected fat-soluble vitamins and minerals in curd cheese–tvarog made by a traditional method, taking into account the effect of the quality of the raw milk and the type of starter cultures used. The raw milk used to make the tvarog was obtained in various conditions, i.e., with and without the use of pasture forage (in a traditional and an intensive system), in two production seasons (spring/summer and autumn/winter), from two breeds raised in Poland (the Black-and-White variety of Polish Holstein-Friesian and Simmental). Two variants of starter cultures were used to make tvarog: Freeze-dried DVS starters (Flora Danica) and pure cultures of mesophilic lactic acid bacteria. The acidity and content of protein, fat, selected fat-soluble vitamins (A, D3, and E), and selected macro-elements (Ca and Mg) were determined in samples of bulk milk and cheese. Retention rates of individual nutrients from the milk to the cheese were calculated. A higher content of fat-soluble vitamins was found in milk obtained from Simmental cows kept in a traditional system in the spring/summer season, as well as in the tvarog produced from it. Vitamin retention rates from the raw material to the tvarog were above 90%. The mineral composition of the cheese was not associated with the quality of the milk used. Very low retention rates from milk to cheese were obtained for Ca and Mg (below 20%). Higher retention rates were obtained in the spring/summer season when culture variant 1 was used. However, the starter culture was not found to significantly influence the concentration or retention of vitamins in the experimental cheese.

scholarly journals The effect of raw milk quality and starter cultures on the yield and nutritional value of polish acid curd cheese (tvarog)

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Jolanta Król ◽  
Agnieszka Wawryniuk ◽  
Aneta Brodziak
Keyword(s):  
Chemical Composition ◽  
Nutritional Value ◽  
Starter Culture ◽  
Calorific Value ◽  
Raw Milk ◽  
Starter Cultures ◽  
Traditional System ◽  
Holstein Friesian ◽  
Freeze Dried ◽  
Fat Soluble Vitamins

Abstract The aim of the study was to characterize variants of traditional acid curd cheese obtained in Poland in artisanal conditions in terms of their yield and nutritional value. The curd cheeses were made from raw milk obtained in various conditions: with and without the use of pasture forage (i.e. in traditional and intensive systems), in two seasons of production (spring/summer and autumn/winter), from two breeds raised in Poland (Polish Holstein-Friesian and Simmental), and on the basis of two types of starter culture (i.e. freeze-dried and traditional cultures). The basic chemical composition and content of selected fat-soluble vitamins, i.e. A, D3 and E, were determined in samples of bulk milk and cheese. The cheese yield was calculated as the number of litres of milk used to produce 1 kg of curd cheese. The nutritional value of the experimental curd cheeses was determined by calculating the calorific value and the Index of Nutritional Quality (INQ). All analysed factors except for the bacterial cultures significantly affected the chemical composition of the cheese. Curd cheese made from the milk of Simmental cows had higher content of protein and fat-soluble vitamins (A, D3 and E) than cheese from the milk of Holstein-Friesian cows. However, curd cheeses produced in a traditional system and/or in the spring and summer were a richer source of vitamins, mostly vitamin E. The high INQ values obtained indicate that curd cheese is a rich source of protein and vitamin A.

scholarly journals Influence of starter culture, temperature and processing technology on the quality of Macedonian white brined cheese

2014 ◽  
Vol 30 (4) ◽  
pp. 579-588
Author(s):  
E. Sulejmani ◽  
Z.H. Musliu ◽  
S. Srbinovska
Keyword(s):  
Starter Culture ◽  
Titratable Acidity ◽  
Streptococcus Thermophilus ◽  
Starter Cultures ◽  
Processing Technology ◽  
Culture Temperature ◽  
Freeze Dried ◽  
White Cheese ◽  
Higher Temperature

The effect of the starter culture, temperature of curdling and processing technology on the composition, cheese yield and process optimization of Macedonian White cheese (MWC) was studied during 60 days of ripening in brine. Three treatments of cheese were made using current technological process and yogurt as starter-culture gained along processing of previous day (MWCK), freeze dried culture of L?ctobacillus delbrueckii subsp. bulgaricus and Streptococcus thermophilus 3:1; F-DVS YF-3331 Yo-Flex version: 2 PI-EU-EN (MWC?1), and (MWC?2) with same starter culture as previous but whith 5 minute earlier processing of curd and temperature of curdling at 39?C. As ripening progressed, titratable acidity (?SH), salt and protein contents of the (MWC?2) treatment continuously increased, whereas their fat-in-dry-matter and lactose contents decreased. In same production conditions depending on the used temperature. Way of processing and starter cultures the cheese from (MWC?2) treatment was with highest acidity of 66.63 + 2.73oSH until the end of ripening of the cheese. Moisture of cheeses remained stable during ripening. The pH of cheese at the 1 day of ripening, which decreased by increasing the temperature of curdling (5.03, 5.11 and 5.00 for MWCK, MWC?1 and MWC?2, respectively), significantly (P < 0.05) affected most of the chemical characteristics of cheese. The content of salt at the end of storage at (?1) and (?2) variant is 5.23 + 0.31 and 5.52 + 0.31 respectively. Higher temperature of curdling decreased moisture and pH, whereas cheese protein content increased. The consumption of milk for production of a 1 kilogram of cheese ranged from 7.8 to 8.3 liters of milk. It was concluded that starter cultures have possstively influenced and improved the quality of white cheese.

scholarly journals The impact of the partial replacement of sodium chloride in the development of starter cultures during Italian salami production

2018 ◽  
Vol 21 (0) ◽  
Author(s):  
Claudia Fieira ◽  
João Francisco Marchi ◽  
Daiana Marafão ◽  
Alexandre da Trindade Alfaro
Keyword(s):  
Sodium Chloride ◽  
Starter Culture ◽  
Microbiological Quality ◽  
Sodium Content ◽  
Starter Cultures ◽  
Partial Replacement ◽  
High Sodium ◽  
Cured Meat ◽  
The Impact

Abstract Italian salami is a cured meat with high sodium contents which is easy, fast and convenient to consume. Starter cultures are used to improve its sensory characteristics and refine its technological manufacturing process. The goal of this study was to reduce the sodium content in Italian salami through the partial replacement of sodium chloride by potassium chloride, magnesium chloride and calcium chloride, and evaluate the viability of the Lactobacillus sp. and Staphylococcus sp. cells found in the starter culture. Four formulations were elaborated: one with, and one without the starter culture, but both with the addition of sodium chloride; and two with the partial replacement of 60% of the sodium chloride: the first with KCl, and the other with a mixture of KCl, MgCl2 and CaCl2. Physicochemical and microbiological evaluations were carried out to monitor the ripening and the quality of the final product. The partial replacement of NaCl by other salts (MgCl2, CaCl2, KCl) did not interfere in the growth of the starter culture in the Italian salami, neither did it affect the majority of the physicochemical parameters of the Italian salami nor the microbiological quality of the final product.

scholarly journals The effect of breed and stage of lactation on the microbiological status of raw milk

2019 ◽  
pp. 37-45
Author(s):  
Flóra Mária Petróczki ◽  
Tema Andualem Tonamo ◽  
Béla Béri ◽  
Ferenc Peles
Keyword(s):  
Microbiological Quality ◽  
Raw Milk ◽  
Coliform Count ◽  
Milk Samples ◽  
Stage Of Lactation ◽  
Holstein Friesian ◽  
Significant Difference ◽  
Jersey Cows ◽  
Friesian Cows

The microbiological quality of the milk is important not only for food safety, but it can also influence the quality of dairy products. The microbiological status of raw cow milk can be influenced by many factors. Our aim was to determine whether there was a difference between the microbiological quality of milk of two different cow breeds (Holstein Friesian and Jersey) kept and milked in the same conditions, and how the microbiological quality of the raw cow milk changed during lactation (beginning, mid, and end). Samples were taken and analysed in July, August and September in 2018 from two dairy farms in Hajdú-Bihar county. During the conducted studies, the total plate count (TPC), the coliform count, the Staphylococcus aureus count and the coagulase-negative Staphylococcus (CNS) count of raw milk samples were determined. There was no significant difference (P>0.05) between the milk of the Holstein Friesian and Jersey breeds in the case of TPC. However, the mean coliform count of milk samples taken from Holstein Friesian cows was significantly lower (P<0.05) than the mean coliform count of milk samples taken from Jersey cows. S. aureus was detected in one of the twelve milk samples taken from Holstein Friesian cows, and in two of the eleven milk samples taken from Jersey cows. CNS was found in larger amount in milk samples taken from Holstein Friesian cows, and the difference was significant (P<0.05). Both TPC and CNS count were significantly higher (P<0.05) in individual milk samples taken at the end stage of lactation, than in samples taken in the earlier stages of lactation from Farm “A”. However, in the case of Farm “B”, there was no significant difference (P>0.05) in colony counts at different stages of lactation. S. aureus was only present in milk samples that collected from cows, which were at the beginning and middle stages of lactation. Testimg the hemolysin production ability of S. aureus strains isolated from the raw milk samples, only weak hemolysis was observed on blood agar. In case of antibiotic resistance testing, it was found that all strains were susceptible to cefoxitin, chloramphenicol, clindamycin, erythromycin, gentamicin, penicillin G, tetracycline and trimethoprim/sulphamethoxazole. Based on the results of our studies, staphylococci were detected in a higher amount in the milk of Holstein Friesian cows, and coliform bacteria were detected in a higher number in the milk of Jersey cows. Summing up the results of the milk samples taken from the different stages of lactation in one of the farms, it can be concluded that higher TPC and CNS count could be detected at the end stage of lactation than in the samples taken from the earlier stages of lactation. The fact that at the end of lactation the microorganisms could be detected in a higher colony count may be related to the fact that teats could be damaged during lactation by the milking machine, which increased the chance of imvading the microorganisms into the udder.

scholarly journals The Quality of Five Natural, Historical Italian Cheeses Produced in Different Months: Gross Composition, Fat-Soluble Vitamins, Fatty Acids, Total Phenols, Antioxidant Capacity, and Health Index

Animals ◽  
2022 ◽  
Vol 12 (2) ◽  
pp. 199
Author(s):  
Adriana Di Di Trana ◽  
Ambra Rita Di Di Rosa ◽  
Margherita Addis ◽  
Myriam Fiori ◽  
Antonino Di Di Grigoli ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Nutritional Quality ◽  
Southern Italy ◽  
Saturated Fatty Acids ◽  
Raw Milk ◽  
Feeding System ◽  
Health Index ◽  
Production Area ◽  
Fat Soluble Vitamins

Five natural historic cheeses of Southern Italy were investigated—Caciocavallo Palermitano (CP), Casizolu del Montiferru (CdM), Vastedda della Valle del Belìce (VVB), Pecorino Siciliano (PS), and Caprino Nicastrese (CN)—which are produced with raw milk and with traditional techniques and tools, from autochthonous breeds reared under an extensive system. The effects of the month of production on gross composition, MUFA, PUFA, PUFA-ω6, PUFA-ω3, α-tocopherol, retinol, cholesterol, TPC, TEAC, and GHIC were evaluated. In CP, CLA, TPC, and GHIC were higher in April than in February. CdM showed higher values in terms of fat, saturated fatty acids, PUFA-ω3, α-tocopherol, TEAC, and GHIC in May than in February and September, while low values in terms of protein, moisture, and CLA were found. In VVB, MUFA, PUFA-ω6, and α-tocopherol increased in June compared with April; conversely, protein, FRAP, and TEAC were higher in April. In PS, protein, CLA, PUFA, PUFA-ω3, α-tocopherol, and GHIC increased in May compared with January; on the contrary, moisture, NaCl, and TEAC showed high values in January. CN showed higher values in terms of PUFA, PUFA-ω6, PUFA-ω3, TPC, TEAC, and GHIC in April and June compared with January. It is shown that each cheese is unique and closely linked to the production area. Cheeses produced in the spring months showed a high nutritional quality due to the greatest presence of healthy compounds originating from an extensive feeding system.

scholarly journals Development of a starter culture for the production of Gari, a traditional African fermented food

2010 ◽  
Author(s):  
◽  
Vinodh Aroon Edward
Keyword(s):  
Starter Culture ◽  
Fermented Food ◽  
Starter Cultures ◽  
Natural State ◽  
Small Scale ◽  
Fermented Foods ◽  
Technological Properties ◽  
Bacterial Strains ◽  
Manihot Esculenta Crantz ◽  
Freeze Dried

Cassava, (Manihot esculenta Crantz), is used for the production of a variety of West African foods and ranks fourth in the list of major crops in developing countries after rice, wheat and maize. Gari is one of the most popular foods produced from cassava. Cassava may contain high levels of linamarin, a cyanogenic glucoside, which in its natural state is toxic to man. Therefore, some processing methods that can enhance the detoxification of cassava and lead to the improvement of the quality and hygienic safety of the food are vitally important for less toxic products to be obtained. Quality, safety and acceptability of traditional fermented foods may be improved through the use of starter cultures. There has been a trend recently to isolate wild-type strains from traditional products for use as starter cultures in food fermentation. A total of 74 bacterial strains and 21 yeast strains were isolated from a cassava mash fermentation process in a rural village in Benin, West Africa. These strains were assessed, together with 26 strains isolated at the CSIR from cassava samples sent from Benin previously, for phenotypic and technological properties. Twenty four presumptive lactic acid bacteria (LAB) were selected for further phenotypic, genotypic and technological characterization during a research visit to the BFE (now Max Rubner Institute of Nutrition and Food). After assessment, the strains VE 20, VE 36, VE 65b, VE 77 and VE 82 were chosen for further study as starter cultures. These L. plantarum strains were chosen on the basis of predominance and possession of suitable technological properties. The investigation of this study was complemented by further, similar studies on further Gari isolates in Germany by the BFE. That study was done independently from this study, but both studies served to select potential starter cultures for cassava fermentation for the production of Gari, as this was the common goal of the project. Thus, a wider final selection of potential starter cultures was decided on at the project level and this selection was further tested in fermentation experiments. A total of 17 strains were grown in optimized media in 2 L fermenters. These strains were freeze-dried and thereafter tested in lab-scale cassava mash fermentation trials. xiii The strains performed well in the small scale bucket fermentations. There was a rapid acidification evidenced by the increase in titratable acidity, ranging from 1.1 to 1.3 % at 24 hours, and 1.3 to 1.6 % at 48 hours. The effect of the starter was obvious in that it lowered the pH much faster and to lower levels than the control. It appeared that both the processing and starter culture addition played a role in the removal of cyanide during processing of the cassava into Gari. This was evident from the lower cyanide values obtained for fermentations that included starter cultures. The study also showed that especially the L. plantarum group strains could be produced as starter cultures at lower costs than compared to L. fermentum, W. paramesenteroides or L. mesenteroides strains. Overall the results of this study were crucial for the project in showing that a starter culture which is easy and economical to produce and which has the desired attributes is a feasible possibility for application in the field.

EFFICIENCY OF TECHNOLOGY OF RYE-WHEAT BREAD FROM FROZEN SEMI-FINISHED PRODUCTS OF A HIGH DEGREE OF READINESS FOR PREVENTIVE NUTRITION USING GRAIN FILLINGS

2020 ◽  
Author(s):  
А.О. ЛОКТИОНОВА ◽  
Е.М. МАРКИН ◽  
Н.В. ЛАБУТИНА ◽  
Э.О. ГЕРАСИМОВА
Keyword(s):  
Starter Culture ◽  
First Grade ◽  
Starter Cultures ◽  
Wheat Bread ◽  
Natural Conditions ◽  
Enzyme Preparations ◽  
Physical And Chemical Quality ◽  
High Degree ◽  
Physical And Chemical

Разработана технология ржано-пшеничного хлеба из замороженных полуфабрикатов высокой степени готовности профилактического назначения с использованием зерновой закваски. Для приготовлении закваски зерно пшеницы проращивали в течение 12–13 ч при температуре 23–25°С; затем к измельченной зерновой массе добавляли воду в соотношении 1 : 1 и растворы ферментных препаратов ксиланазного действия. Полученную смесь выдерживали 2 ч при температуре 40°С. Тесто готовили с использованием густой ржаной закваски, а также зерновых заквасок при соотношении 60 : 40 ржаной обдирной и пшеничной муки первого сорта соответственно. Выпеченные полуфабрикаты охлаждали в естественных условиях, упаковывали и помещали в морозильную камеру при температуре –27°С. После размораживания производили допекание изделия до 100%-й готовности. Анализ физико-химических показателей качества ржано-пшеничного хлеба, приготовленного из замороженных полуфабрикатов, показал, что использование зерновых заквасок улучшает качество готового хлеба и сохраняет его основные показатели после криохранения. Удельный объем образцов хлеба на закваске густой ржаной/зерновой, см3/г: 2,2/2,4; влажность, %: 44,5/44,0; кислотность, град.: 4,4/3,8; пористость, %: 64/60; общая деформация, мм: 3,0/3,3 соответственно. The technology of rye-wheat bread from frozen semi-finished products of high readiness for preventive purposes using grain starter culture has been developed. To prepare the starter culture, wheat grain was sprouted for 12–13 hours at a temperature of 23–25°C; then water was added to the crushed grain mass in a ratio of 1 : 1 and solutions of xylanase-acting enzyme preparations. The resulting mixture was kept for 2 hours at a temperature of 40°C. The dough was prepared using a thick rye sourdough, as well as grain starter cultures at a ratio of 60 : 40 rye skinned and wheat flour of the first grade, respectively. Baked semi-finished products were cooled in natural conditions, Packed and placed in a freezer at a temperature of –27°C. After defrosting, the product was baked to 100% readiness. Analysis of physical and chemical quality indicators of rye-wheat bread made from frozen semi-finished products showed that the use of grain starter cultures improves the quality of finished bread and preserves its main indicators after cryopreservation. Specific volume of bread samples on sourdough thick rye/grain, cm3/g: 2,2/2,4; humidity, %: 44,5/44,0; degree of acidity 4,4/3,8; porosity, %: 64/60; total deformation, mm: 3,0/3,3 respectively.

Bacterial starter cultures induce suitable changes in milk fatty acid profiles at different fermentation conditions

2020 ◽  
pp. 1-5
Author(s):  
Gholamreza Bahrami ◽  
Ali Mostafaie ◽  
Amir Kiani ◽  
Maryam Chalabi
Keyword(s):  
Fatty Acid ◽  
Fatty Acid Profile ◽  
Starter Culture ◽  
Starter Cultures ◽  
Lactobacillus Bulgaricus ◽  
Fatty Acid Profiles ◽  
Animal Fat ◽  
Significant Difference ◽  
Sour Cream

Abstract This study aimed to compare the effect of different ratios of Streptococcus thermophilus to Lactobacillus bulgaricus (3 : 1, 1 : 1, and 1 : 3) under the various stressful temperatures (37 and 45°C) on the fatty acid profiles quality of Kermanshahi roghan (yogurt by-product) and sour cream to obtain a formula for producing a kind of animal fat healthier than milk and cream. Stresses such as fermentation play an important role in bacterial behavior and consequently in food quality. Our findings presented a significant difference between roghan and sour cream fatty acid levels only at 37°C. Furthermore, starter culture 3 : 1 was the best starter for producing products with a higher quality of fatty acid profile at 37°C, and a 1 : 1 S. thermophilus to L. bulgaricus ratio was optimal at 45°C. It seems that bacteria adapt to harsh growth conditions by changing the fatty acid profiles, and these changes warrant consideration in the production of a kind of animal fat with the best fatty acid profiles. In conclusion, the roghan fatty acid profile is more suitable than sour cream only at 37°C.

scholarly journals Metabolomics-Based Study of the Effect of Raw Materials to the End Product of Tempe—An Indonesian Fermented Soybean

Metabolites ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 367
Author(s):  
Adinda Darwati Kadar ◽  
Made Astawan ◽  
Sastia Prama Putri ◽  
Eiichiro Fukusaki
Keyword(s):  
Environmental Factors ◽  
Raw Materials ◽  
Starter Culture ◽  
Metabolite Profile ◽  
Starter Cultures ◽  
Raw Material ◽  
Fermented Soybean ◽  
Metabolite Profiles ◽  
Soybean Food

Tempe is a fermented soybean food from Indonesia, made by inoculating Rhizopus spp. onto cooked and dehulled soybean. Tempe has been a part of Indonesian culture since the 16th century and is now produced globally as a highly nutritious plant-based food. Despite a longstanding history on the production of tempe, very few studies have been reported to understand the effect of raw material to the end product metabolite composition. In this research, we applied GC/MS-based metabolite profiling to investigate the effect of various possible factors that might affect the final product (environmental factors, raw materials, and starter cultures). Representative samples were tempe produced by Indonesian industries, Japanese industries as well as laboratory made tempe. The results showed that both environmental factors and raw materials (soybean, water, and starter culture) contributed to the tempe metabolite profile. Here we found the possibility that starter cultures might play a greater role to determine the metabolite profiles compared to other tested factors. This research might provide useful insights for the larger scale industries to maintain the quality of tempe for the benefit of the consumers.

Use of Starter Cultures in Meats

1983 ◽  
Vol 46 (11) ◽  
pp. 997-1006 ◽  
Author(s):  
JAMES L. SMITH ◽  
SAMUEL A. PALUMBO
Keyword(s):  
Food Safety ◽  
Pathogenic Bacteria ◽  
Starter Culture ◽  
Meat Products ◽  
Starter Cultures ◽  
Safety Aspects ◽  
Nutritive Quality ◽  
Culture Characteristics

Use of starter cultures in meat products is reviewed, with emphasis on the types of microorganisms employed for production of various products, and the effect of starter cultures on food safety. Desirable starter culture characteristics are identified, and the effect of fermentation on the nutritive quality of meats is considered. Food safety aspects of starter culture use discussed include the effects on survival of viruses, trichinae, and pathogenic bacteria, and on the control of mycotoxin, nitrosamine, and pressor amine contamination.

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