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16 pages, 1808 KiB  
Article
Chemometric Classification of Feta Cheese Authenticity via ATR-FTIR Spectroscopy
by Lamprini Dimitriou, Michalis Koureas, Christos S. Pappas, Athanasios Manouras, Dimitrios Kantas and Eleni Malissiova
Appl. Sci. 2025, 15(15), 8272; https://doi.org/10.3390/app15158272 - 25 Jul 2025
Viewed by 258
Abstract
The authenticity of Protected Designation of Origin (PDO) Feta cheese is critical for consumer confidence and market integrity, particularly in light of widespread concerns over economically motivated adulteration. This study evaluated the potential of Attenuated Total Reflectance–Fourier Transform Infrared (ATR-FTIR) spectroscopy combined with [...] Read more.
The authenticity of Protected Designation of Origin (PDO) Feta cheese is critical for consumer confidence and market integrity, particularly in light of widespread concerns over economically motivated adulteration. This study evaluated the potential of Attenuated Total Reflectance–Fourier Transform Infrared (ATR-FTIR) spectroscopy combined with chemometric modeling to differentiate authentic Feta from non-Feta white brined cheeses. A total of 90 cheese samples, consisting of verified Feta and cow milk cheeses, were analyzed in both freeze-dried and fresh forms. Spectral data from raw, first derivative, and second derivative spectra were analyzed using principal component analysis–linear discriminant analysis (PCA-LDA) and Partial Least Squares Discriminant Analysis (PLS-DA) to distinguish authentic Feta from non-Feta cheese samples. Derivative processing significantly improved classification accuracy. All classification models performed relatively well, but the PLS-DA model applied to second derivative spectra of freeze-dried samples achieved the best results, with 95.8% accuracy, 100% sensitivity, and 90.9% specificity. The most consistently highlighted discriminatory regions across models included ~2920 cm−1 (C–H stretching in lipids), ~1650 cm−1 (Amide I band, corresponding to C=O stretching in proteins), and the 1300–900 cm−1 range, which is associated with carbohydrate-related bands. These findings support ATR-FTIR spectroscopy as a rapid, non-destructive tool for routine Feta authentication. The approach offers promise for enhancing traceability and quality assurance in high-value dairy products. Full article
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13 pages, 497 KiB  
Article
Extracts of Hechtia spp. as Novel Coagulants Reduce the Pollutant Load of Whey
by Leopoldo González-Cruz, Miguel Angel Mosqueda-Avalos, María de la Luz Xochilt Negrete-Rodríguez, Eloy Conde-Barajas, Norma Leticia Flores-Martínez and Aurea Bernardino-Nicanor
Sustainability 2025, 17(14), 6579; https://doi.org/10.3390/su17146579 - 18 Jul 2025
Viewed by 291
Abstract
Traditional coagulant calf rennet, which is used in cheese production, is currently facing the problem of an unsustainable source. In addition, the production of cheese with calf rennet produces whey with high biochemical (BOD) and chemical oxygen demand (COD) values. For these reasons, [...] Read more.
Traditional coagulant calf rennet, which is used in cheese production, is currently facing the problem of an unsustainable source. In addition, the production of cheese with calf rennet produces whey with high biochemical (BOD) and chemical oxygen demand (COD) values. For these reasons, plant extracts have been investigated as sustainable sources of coagulants for milk. However, there are few reports on the changes in the COD and BOD of whey when plant extracts are used. For this reason, this study investigated the potential of extracts from two Hechtia species native to Mexico (H. glomerata and H. podantha) as sustainable milk coagulants for cheese production, with the aim of simultaneously reducing the pollutant load of residual whey. The milk coagulation efficiency of the extracts of the two Hechtia species was investigated, and in addition, their effects on cheese texture and color, and the composition of the residual whey, including BOD and COD, were evaluated. Most extracts of H. podantha showed adequate milk coagulation and yielded fresh cheese with textural properties comparable to those of cheese produced with conventional calf rennet. A significant reduction in carbohydrate content was achieved when H. podantha extracts were used. As a result, a significant decrease in the BOD and COD values was achieved. In some cases, a reduction of up to 1.78 times compared with those of the control was achieved. The results of this study show that H. podantha is a promising source of natural coagulants for sustainable cheese production, offering a dual benefit by providing an alternative to conventional rennet and reducing the environmental impact of whey. Full article
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19 pages, 1243 KiB  
Article
From Tradition to Sustainability: Identifying Value-Added Label Attributes in the Italian Protected Designation of Origin Cheese Market
by Rungsaran Wongprawmas, Enrica Morea, Annalisa De Boni, Giuseppe Di Vita, Cinzia Barbieri and Cristina Mora
Sustainability 2025, 17(13), 5891; https://doi.org/10.3390/su17135891 - 26 Jun 2025
Viewed by 342
Abstract
Despite the economic importance of Protected Designation of Origin (PDO) cheeses in Italy, little research has examined how label attributes affect price premiums. For Italian cheese producers, especially those investing in PDO certification, understanding which attributes generate premiums is crucial for sustainable business [...] Read more.
Despite the economic importance of Protected Designation of Origin (PDO) cheeses in Italy, little research has examined how label attributes affect price premiums. For Italian cheese producers, especially those investing in PDO certification, understanding which attributes generate premiums is crucial for sustainable business strategies. This study examined attributes displayed on 420 validated cheese labels collected across Italy in 2022, focusing on hard cheese, fresh soft cheese, and string cheese. A content analysis was conducted to identify and categorize the attributes displayed on cheese labels. Following this, the hedonic pricing method, supported by multiple linear regression analysis, was used to assess the impact of these attributes—along with brand and distribution channel—on product pricing. Our findings reveal that sustainability attributes show particularly strong effects on price premiums. PDO certification generates significant premiums prominently for hard and fresh soft cheeses, cow breed information for string cheese, while specialized retail channels create higher prices for fresh soft and string cheeses. While brand–price relationships are heterogeneous, the study provides evidence of their impact. These insights enable cheese producers, marketers, and retailers to strategically prioritize product attributes, optimize distribution channels, and make informed decisions about brand positioning to maximize value in competitive cheese markets. Full article
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17 pages, 1998 KiB  
Article
Property Changes in Production of Hybrid Fresh Cheese Rich in Polyunsaturated Fatty Acids from Sacha Inchi (Plukenetia volubilis) Oil
by Hoang Giang, Nguyen Chinh Nghia, Chu Ky Son, Ho Phu Ha, Bui Quang Minh, Le Quang Huong, Le Tuan Phuc, Hoang Quoc Tuan, Vu Hong Son and Vu Thu Trang
Processes 2025, 13(7), 1978; https://doi.org/10.3390/pr13071978 - 23 Jun 2025
Viewed by 651
Abstract
Milk fat plays an important role in the flavor and texture of cheese. However, it contains high amounts of saturated fat and cholesterol, which have recently been reported to be unsuitable for maintaining good health. The aim of this study was to evaluate [...] Read more.
Milk fat plays an important role in the flavor and texture of cheese. However, it contains high amounts of saturated fat and cholesterol, which have recently been reported to be unsuitable for maintaining good health. The aim of this study was to evaluate the effects of milk fat’s replacement with sacha inchi (Plukenetia volubilis) oil in fresh cheese processing on the coagulation properties, nutritional value, and sensory properties, aiming to obtain a hybrid fresh cheese rich in polyunsaturated fatty acids (PUFAs). Milk fat (3.8% in standardized milk) was partly replaced with Vietnamese sacha inchi oil at 20, 40, 60, and 80%. The coagulation time, curd formation, and cheese yield showed no significant differences among the treatments (p > 0.05), suggesting that sacha inchi oil did not adversely affect curd formation. The cholesterol levels decreased substantially, from 8.27 ± 0.53 mg/g in control samples to 2.63 ± 0.63 mg/g at 80% fat replacement. An increase in essential fatty acids in the fresh cheese was also found with an increase in the use of sacha inchi oil to replace milk fat, with the oleic acid concentration (OA, C18:1, cis ω-9) rising from 7.88 ± 0.36% to 23.44 ± 0.13% and the linoleic acid concentration (LA, C18:2, cis ω-6) from 6.44 ± 0.68% to 41.75 ± 2.50% at the highest substitution level. From a nutritional perspective, the replacement of milk fat with sacha inchi oil did not affect the macronutritional values (fat, protein), but it reduced the cholesterol levels and enhanced the overall nutritional value of the fresh cheese with increasing essential fatty acids. The milk fat alternative of sacha inchi oil for cheese processing contributed to a richer and creamier sensory experience of the final products, but no significant differences in the overall liking were found regarding the acceptance of customers. Thus, replacement with sacha inchi oil in PUFA cheese processing is a promising method to improve the nutritional value and sensory quality of fresh cheese. Full article
(This article belongs to the Section Food Process Engineering)
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18 pages, 8398 KiB  
Article
Application of Predictive Modeling and Molecular Simulations to Elucidate the Mechanisms Underlying the Antimicrobial Activity of Sage (Salvia officinalis L.) Components in Fresh Cheese Production
by Dajana Vukić, Biljana Lončar, Lato Pezo and Vladimir Vukić
Foods 2025, 14(13), 2164; https://doi.org/10.3390/foods14132164 - 20 Jun 2025
Viewed by 482
Abstract
Plant-derived materials from Salvia officinalis L. (sage) have demonstrated significant antimicrobial potential when applied during fresh cheese production. In this study, the mechanism of action of sage components against Listeria monocytogenes, Escherichia coli, and Staphylococcus aureus was investigated through the development of [...] Read more.
Plant-derived materials from Salvia officinalis L. (sage) have demonstrated significant antimicrobial potential when applied during fresh cheese production. In this study, the mechanism of action of sage components against Listeria monocytogenes, Escherichia coli, and Staphylococcus aureus was investigated through the development of predictive models that describe the influence of key parameters on antimicrobial efficacy. Molecular modeling techniques were employed to identify the major constituents responsible for the observed inhibitory activity. Epirosmanol, carvacrol, limonene, and thymol were identified as the primary compounds contributing to the antimicrobial effects during cheese production. The highest weighted predicted binding energy was observed for thymol against the KdpD histidine kinase from Staphylococcus aureus, with a value of −33.93 kcal/mol. To predict the binding affinity per unit mass of these sage-derived compounds against the target pathogens, machine learning models—including Artificial Neural Networks (ANN), Support Vector Machines (SVM), and Boosted Trees Regression (BTR)—were developed and evaluated. Among these, the ANN model demonstrated the highest predictive accuracy and robustness, showing minimal bias and a strong coefficient of determination (R2 = 0.934). These findings underscore the value of integrating molecular modeling and machine learning approaches for the identification of bioactive compounds in functional food systems. Full article
(This article belongs to the Special Issue Application of Bioinformatics in Food Science)
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16 pages, 311 KiB  
Article
The Application Potential of the Raw Goat Milk-Derived Strain Lactococcus lactis MK 1/3 for the Dairy Industry
by Andrea Lauková, Martin Tomáška, Maroš Drončovský, Rastislav Mucha, Emília Dvorožňáková, Miroslav Kološta and Monika Pogány Simonová
Appl. Sci. 2025, 15(12), 6781; https://doi.org/10.3390/app15126781 - 17 Jun 2025
Viewed by 369
Abstract
Raw goat milk-derived Lactococcus lactis MK1/3 (CCM 9209) was studied to show its potential for use in the dairy industry. Finding an innovative strain indicates having a new safe, original additive for functional food. The strain has been shown to be safe using [...] Read more.
Raw goat milk-derived Lactococcus lactis MK1/3 (CCM 9209) was studied to show its potential for use in the dairy industry. Finding an innovative strain indicates having a new safe, original additive for functional food. The strain has been shown to be safe using a model experiment with Balb/c mice, when no mortality was noted. Its counts were increased continually during 120 days, with the highest value on day 90 (4.38 ± 1.24 colony-forming unit per gram (CFU/g, log 10). In vivo (in the experimental mice), anti-staphylococcal effect was noted with difference 1.82 log cycles. The safety of the strain MK1/3 has been also indicated by the fact that it did not produce damaging enzymes, it has been susceptible to antibiotics, and it has shown low-grade biofilm-forming ability (0.126 ± 0.35). This strain has tolerated bile, and low pH sufficiently. It produced a postbiotic active substance with inhibitory activity against cheese and milk contaminants (Enterococci), reaching antimicrobial activity up to 3200 AU/mL. The count of the strain MK1/3 was higher in yogurts from ewe goat milk (4.66 ± 0.30 CFU/g, log 10), in comparison with its count in yogurts from ewe milk (4.10 ± 0.10 CFU/g, log 10), with no influencing yogurt pH. Its use in 100% starter culture to process fresh cheese based on goat milk was revealed in the standard cheese quality with sufficient amount of lactic acid microbiota. To support the benefit of the strain MK1/3, additional human trials have been reinforced. Full article
(This article belongs to the Section Applied Microbiology)
15 pages, 2326 KiB  
Article
Sensory and Instrumental Characterization of Parmigiano Reggiano Protected Designation of Origin Cheese Obtained from Milk of Cows Fed Fresh Herbage vs. Dry Hay
by Mara Antonia Gagliano, Matilde Tura, Francesca Soglia, Chiara Cevoli, Sara Barbieri, Giacomo Braschi, Alessandra Bendini, Tullia Gallina Toschi, Massimiliano Petracci and Enrico Valli
Foods 2025, 14(10), 1781; https://doi.org/10.3390/foods14101781 - 17 May 2025
Viewed by 479
Abstract
Using a multi-analytical approach, this investigation characterized Parmigiano Reggiano PDO cheese produced with milk from dairy cows fed different diets. Ten samples of Parmigiano Reggiano PDO cheese, aged for 24 months, were produced with milk from dairy cows fed only dry hay (P-DH; [...] Read more.
Using a multi-analytical approach, this investigation characterized Parmigiano Reggiano PDO cheese produced with milk from dairy cows fed different diets. Ten samples of Parmigiano Reggiano PDO cheese, aged for 24 months, were produced with milk from dairy cows fed only dry hay (P-DH; N = 6) or a diet with part of the dry hay replaced with fresh herbage (P-FF; N = 4). Instrumental (Flash GC-FID) analysis of the volatile fraction, image analyses, and sensory quantitative descriptive analysis (QDA®) were carried out. The Parmigiano Reggiano cheese belonging to the P-FF group showed a higher intensity of yellow than P-DH for both sensory and image analyses. Regarding the volatile profiles, no differences were observed related to the two experimental groups, while sensory analyses allowed for some discrimination, in particular color and aroma attributes. Instrumental and sensory characterization can be used to obtain a unique analytical profile for Parmigiano Reggiano PDO cheeses produced with milk from dairy cows fed different forage sources and help to define the quality and authenticity of this typical high-value food product. Full article
(This article belongs to the Special Issue Foodomics Fifteen Years On From. Where Are We Now, What’s Next)
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18 pages, 5903 KiB  
Article
Prevalence and Antimicrobial Resistance of Listeria monocytogenes Isolated from Dairy Products in Romania
by Filippos Georgios Nikolaou, Liora Mihaela Colobatiu, Laurentiu Mihai Ciupescu, Alexandra Tabaran, Ariana Raluca Hategan, Romolica Mihaiu, Radu Tanasuica, Magdalena Maria Poenaru and Marian Mihaiu
Antibiotics 2025, 14(5), 482; https://doi.org/10.3390/antibiotics14050482 - 9 May 2025
Viewed by 684
Abstract
Background/Objectives: Listeria monocytogenes is a significant foodborne pathogen associated with dairy products, which can pose serious public health risks, particularly for vulnerable populations. This study aimed to assess the prevalence, serotype distribution, and antimicrobial resistance profiles of Listeria monocytogenes isolated from dairy [...] Read more.
Background/Objectives: Listeria monocytogenes is a significant foodborne pathogen associated with dairy products, which can pose serious public health risks, particularly for vulnerable populations. This study aimed to assess the prevalence, serotype distribution, and antimicrobial resistance profiles of Listeria monocytogenes isolated from dairy products collected in Romania over a three-year period (2021–2023). To the best of our knowledge, this is the first comprehensive study addressing these issues within the country. Methods: A total of 10,306 dairy samples, including milk, cheeses, ice cream, yogurt, and other dairy-based products, were collected and analyzed using standard microbiological methods. Molecular serotyping was performed to identify the most common serogroups. The antimicrobial susceptibility of the isolates was also conducted. Results: The overall prevalence of Listeria monocytogenes was 0.41% (43/10,306). The most frequently detected serogroup was IVb (74.41%), followed by IIa (23.25%) and IIb (2.32%). Ice cream was the most affected product, followed by fresh telemea made from cow milk. Antimicrobial susceptibility testing revealed higher resistance rates for oxacillin and trimethoprim-sulfamethoxazole (13.95% each), while all isolates were susceptible to ciprofloxacin, levofloxacin, and moxifloxacin. Conclusions: The findings emphasize the need for continuous monitoring of Listeria monocytogenes in dairy products, particularly ice cream and fresh cheeses, due to their high contamination rates. The study’s results are valuable for comparative analysis with findings from other countries, helping to establish a broader understanding of Listeria monocytogenes contamination trends and resistance profiles. Full article
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17 pages, 1687 KiB  
Article
A Comparison of the Physicochemical Properties and Sensory Attributes of Ricotta Cheeses Purchased from Retail Outlets in Poland
by Iwona Chwastowska-Siwiecka, Agnieszka Kaca and Jan Miciński
Foods 2025, 14(8), 1413; https://doi.org/10.3390/foods14081413 - 19 Apr 2025
Viewed by 645
Abstract
The aim of this study was to compare selected physicochemical properties and sensory attributes of ricotta cheeses supplied by different producers and purchased from retail outlets in Poland. The experiment was performed on 40 fresh, unripened ricotta cheeses purchased from hypermarkets in the [...] Read more.
The aim of this study was to compare selected physicochemical properties and sensory attributes of ricotta cheeses supplied by different producers and purchased from retail outlets in Poland. The experiment was performed on 40 fresh, unripened ricotta cheeses purchased from hypermarkets in the city of Olsztyn, Poland. The cheeses were supplied by four producers. To preserve the producers’ anonymity, the cheeses were divided into four experimental groups marked with the letters A, B, C, and D. Each group consisted of 10 cheeses supplied by the same producer. Immediately after purchase, the cheeses were transported to a laboratory for quantitative and qualitative analyses to determine their moisture contents, active and titratable acidity, shear force, color parameters (L*, a*, b*), chroma (C*), hue angles (h°), whiteness indexes (WIs), yellowness indexes (YIs), and sensory quality. The analyses revealed that the cheeses supplied by producers C and D were characterized by the highest moisture contents and the lowest titratable acidity and shear force values. The ricottas supplied by producer A were characterized by the highest values for lightness on the surface, whereas the group B cheeses were characterized by the highest contribution of redness and yellowness, as well as the highest color saturation (chroma). The contributions of redness and yellowness, chroma, and YI values were highest at the cross-sections of the group B cheeses. The cheeses supplied by producer D were characterized by visible spaces between grains, cracks, and a brittle, crumbly consistency, and they received the lowest scores for appearance at the cross-section for structure and consistency. Full article
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24 pages, 727 KiB  
Article
Former Food and Agro-Industrial By-Products in Dairy Cow Diets: Effects on Milk Quality and Cheese Production
by Ludovica Maria Eugenia Mammi, Francesca Ghiaccio, Elisa Benini, Carla Giuditta Vecchiato, Isa Fusaro, Giovanni Buonaiuto, Damiano Cavallini, Alberto Palmonari, Giorgia Canestrari, Riccardo Colleluori and Andrea Formigoni
Animals 2025, 15(8), 1113; https://doi.org/10.3390/ani15081113 - 11 Apr 2025
Viewed by 559
Abstract
The use of former foodstuff and by-products in cow diets could improve the environmental sustainability of livestock. However, knowledge about the effects of these feeds in ruminant diets on the quality of dairy products is lacking. This study investigated the effects of integrating [...] Read more.
The use of former foodstuff and by-products in cow diets could improve the environmental sustainability of livestock. However, knowledge about the effects of these feeds in ruminant diets on the quality of dairy products is lacking. This study investigated the effects of integrating wheat distillers’ grain with solubles (WDGS) and a former foodstuff product (FFP) into the diet of dairy cows on milk and cheese quality. The environmental impact of the two feeding systems has been evaluated by LCA. A double crossover design was set up with 84 Holstein cows, alternating a control diet and a circular one. In the circular diet, traditional feeds were partially replaced with 4 kg/d WDGS and 3 kg/d FFP. The results showed no effects on dry matter intake and milk yield, while fiber digestibility improved. A reduction in the milk fat content and a modification of the fatty acid profile of milk and cheese were observed. Conversely, cheese yield, composition, and sensory attributes were not affected. The environmental impact of the diet was significantly reduced in terms of land occupation, net fresh water, and global warming potential. These findings suggest that these feeds can be safely included in dairy cow diets. This approach could significantly contribute to reducing greenhouse gas emissions, enhancing the sustainability of the dairy system. Full article
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12 pages, 1174 KiB  
Article
Production and Characterization of Camel Milk Cheese Made Using Chicken Gizzard Inner Lining Extract as Coagulant
by Amel Sboui, Imen Fguiri, Abir Omrani, Abir Rahali, Mohamed Dbara and Touhami Khorchani
Processes 2025, 13(2), 519; https://doi.org/10.3390/pr13020519 - 13 Feb 2025
Cited by 1 | Viewed by 906
Abstract
The process of camel milk’s transformation into cheese is a delicate operation due to various difficulties in achieving coagulation. This study investigates the processing challenges of camel milk in the production of camel milk cheese using chicken gizzard inner lining extract (CGLE) as [...] Read more.
The process of camel milk’s transformation into cheese is a delicate operation due to various difficulties in achieving coagulation. This study investigates the processing challenges of camel milk in the production of camel milk cheese using chicken gizzard inner lining extract (CGLE) as a coagulant. The crude extract presents an extraction yield of 55.05 ± 1.8% and a pH = 4.40 ± 0.05. The optimal coagulation conditions were pH 5 and temperature 45 °C. A fresh camel milk cheese was produced using CGLE and characterized as CME. The cheese yield of the CME was 26.88 ± 0.42%, which was higher than that obtained with chymosin (CC) at 12.66 ± 0.12%. The pH and acidity were 5.29 ± 0.09 and 56.25 ± 1.25°D. The gross composition of camel cheese (CME) was determined in comparison to (CC) fat (13.50 ± 2.82%), proteins (11.61 ± 0.19%), and dry matter (38.85 ± 1.22%). The sensory analysis demonstrated significant differences (p < 0.05) between the CME and CC in terms of white color, acidic taste, and consistency. Therefore, CME presents an overall acceptability in comparison to the control. The chicken gizzard inner lining extract could be used as an efficient coagulant for the production of fresh camel cheese. Full article
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17 pages, 3038 KiB  
Article
Effect of Type of Coagulant and Addition of Stored Curd on Chemical, Rheological and Microstructural Properties of Low-Moisture Mozzarella Cheese
by Cristina Alamprese, Paolo D’Incecco, Stefano Cattaneo, Fabio Masotti and Ivano De Noni
Dairy 2025, 6(1), 6; https://doi.org/10.3390/dairy6010006 - 23 Jan 2025
Cited by 1 | Viewed by 1254
Abstract
Low-moisture Mozzarella cheese (LMMC) was manufactured in a dairy factory by stretching fresh curd in hot water, with the addition of 0–30% commercial curd (stored curd) purchased as a semi-finished product. Two commercial fermentation-produced camel chymosins, CC-M and CC-S, were employed as coagulants. [...] Read more.
Low-moisture Mozzarella cheese (LMMC) was manufactured in a dairy factory by stretching fresh curd in hot water, with the addition of 0–30% commercial curd (stored curd) purchased as a semi-finished product. Two commercial fermentation-produced camel chymosins, CC-M and CC-S, were employed as coagulants. The chemical, rheological and microstructural properties of LMMC were assessed during storage. The results demonstrated that cheese composition was not significantly influenced by curd addition. The use of CC-S promoted a slight increase of fat matter with respect to the CC-M samples because of the higher proteolytic specificity and clotting activity of the CC-S enzyme. A higher extent of proteolysis was found in LMMC manufactured with CC-M. The textural properties evaluated during storage revealed an increase in meltability, adhesiveness and springiness over time. The amount of added curd had only a minor effect. The melting behaviour was significantly influenced by proteolysis during the 35-day storage period. Overall, the proteolysis during aging was the most impactful factor affecting the properties of LMMC. Full article
(This article belongs to the Section Milk Processing)
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18 pages, 2132 KiB  
Article
Effect of Freeze-Dried Camel Rennet Extract on Coagulation of Camel–Goat Milk Mixture and Characterization of the Cheese Obtained
by Biya Bouras, Ouarda Aissaoui-Zitoun, Férial Aziza Benyahia, Souhila Djema, Leila Bouras, Mohammed Nassereddine Zidoune and Imène Felfoul
Foods 2025, 14(3), 334; https://doi.org/10.3390/foods14030334 - 21 Jan 2025
Cited by 1 | Viewed by 1252
Abstract
This study aims at the use of freeze-dried camel rennet extract (FDCR) in the manufacture of fresh cheeses from a mixture of camel and goat milk in comparison with the microbial coagulating agent (FDMC). Physical properties, chemical composition, microstructure, and sensory analysis of [...] Read more.
This study aims at the use of freeze-dried camel rennet extract (FDCR) in the manufacture of fresh cheeses from a mixture of camel and goat milk in comparison with the microbial coagulating agent (FDMC). Physical properties, chemical composition, microstructure, and sensory analysis of the cheeses were performed. The recommended amount of FDCR for coagulation of camel–goat milk mixture was 0.2 g/L. The cheese obtained was mainly characterized by dry matter 34.99 ± 0.57% and protein content 36.26 ± 1.75%/DM. Texture profile analysis revealed that the obtained cheese was mainly characterized by cohesiveness 0.32 ± 0.01 and springiness 14.25 ± 0.63 mm. The microstructure showed that the obtained cheese had more and wider pores. FTIR was used to monitor the differences in the gross composition of the obtained cheese compared to that coagulated with FDMC. The main difference was the presence of amide I in the cheese coagulated with FDCR. For X-ray diffraction, the results noted that the use of FDCR as a natural extract in the coagulation of camel–goat milk mixture did not lead to the appearance of crystalline structure in the cheese. For sensory evaluation, the panelists preferred the cheese coagulated with FDCR with a score of 9/15. Full article
(This article belongs to the Section Dairy)
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16 pages, 843 KiB  
Article
Health Benefits of Dairy Products’ Consumption—Consumer Point of View
by Dominika Jakubowska, Aneta Zofia Dąbrowska, Katarzyna Staniewska, Katarzyna Kiełczewska, Katarzyna E. Przybyłowicz, Justyna Żulewska and Adriana Łobacz
Foods 2024, 13(23), 3925; https://doi.org/10.3390/foods13233925 - 5 Dec 2024
Cited by 4 | Viewed by 3168
Abstract
The aim of this study was to identify and analyse consumer perceptions regarding the health benefits of different dairy products in Poland. This study examines the consumption frequency of selected dairy products in Poland and the health benefits which consumers associate with their [...] Read more.
The aim of this study was to identify and analyse consumer perceptions regarding the health benefits of different dairy products in Poland. This study examines the consumption frequency of selected dairy products in Poland and the health benefits which consumers associate with their regular consumption. It also explores how demographic factors, such as age, gender, and consumption frequency, influence these perceptions and identifies which dairy products are the most linked to specific health benefits. This study involved a quantitative survey of a representative sample of 2009 Polish consumers aged 19–30 and 66–75 years. This study revealed that the vast majority of the consumers recognise the health benefits of dairy products, particularly in areas such as better bone health, enhanced immune function, and improved digestion. The benefits associated with the regular consumption of milk, natural fresh cheeses, and natural fermented milk beverages were most frequently recognised. The respondents’ age had no significant effect on their perceptions of the health benefits of the selected dairy products. A statistically significant effect of gender was found only for the perceived benefits of consuming flavoured, fermented milk beverages. The frequency of consumption had a significant effect on the respondents’ perceptions of the benefits of all the studied groups of dairy products. In general, the consumers had positive attitudes towards the dairy products and believed in their potential health benefits. These findings have important implications for policy-makers. They underline the need for targeted public health campaigns to promote the consumption of dairy products as part of a balanced diet, emphasizing their specific health benefits. Such efforts could be especially effective if tailored to demographic factors such as gender and dietary habits. Full article
(This article belongs to the Topic Consumer Behaviour and Healthy Food Consumption)
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17 pages, 1127 KiB  
Article
Effect of Adding Winemaking By-Product on the Characteristics of Petit Suisse Cheese Made with A2A2 Milk and Probiotic
by Cláudia Moreira Santa Catharina Weis, Márcia Miss Gomes, Bárbara Geremia Vicenzi, Giovanna Alexandre Fabiano, Jean de Oliveira Lopes, Patrícia Daniele da Silva dos Santos, Luciano Tormen, Oscar Oliveira Santos, Rosangela Maria Neves Bezerra, Adriane Elisabete Costa Antunes, Larissa Canhadas Bertan, Giselle Nobre Costa and Ricardo Key Yamazaki
Fermentation 2024, 10(11), 570; https://doi.org/10.3390/fermentation10110570 - 8 Nov 2024
Viewed by 2160
Abstract
By-products generated in the winemaking industry contain compounds with health-promoting properties, which can be reintroduced into the food production chain. This study evaluated the use of a by-product from the industrial processing of grapes as an ingredient in the manufacture of Petit Suisse [...] Read more.
By-products generated in the winemaking industry contain compounds with health-promoting properties, which can be reintroduced into the food production chain. This study evaluated the use of a by-product from the industrial processing of grapes as an ingredient in the manufacture of Petit Suisse cheese, made with A2A2 milk and the addition of the probiotic Bifidobacterium animalis subsp. lactis HN019. Two Petit Suisse formulations were made in three independent batches: a control formulation without the addition of the by-product (F0) and a formulation containing 10% of the by-product (F1). The proximate composition of the cheeses was characterized on the first day after manufacturing them. The addition of the by-product led to an increase in ash, lipids, and carbohydrates and a reduction in moisture and protein contents. The physicochemical characterization and the texture profile analysis showed no changes throughout the product’s shelf life. The probiotic counts remained abundant (~eight log CFU/g) in both formulations with no changes seen throughout the shelf life period. Scanning electron microscopy images showed the added bacteria had typical structures. No differences were observed in the fatty acid profiles of the formulations, and both exhibited a total of 18 fatty acids, including saturated fatty acids (SFAs), monounsaturated fatty acids (MUFAs), and polyunsaturated fatty acids (PUFAs). Additionally, the by-product conferred antioxidant activity to the F1 formulation. The addition of the by-product in fresh cheese may be an interesting approach in regards to the processing technology used, its microbiological safety, and its nutritional value. The use of A2A2 milk and a probiotic culture thus enhanced the Petit Suisse cheese, resulting in a healthier product. Full article
(This article belongs to the Special Issue Food Wastes: Feedstock for Value-Added Products: 5th Edition)
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