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Mediwaththe A, Huppertz T, Chandrapala J, Vasiljevic T. Effect of pH and Shear on Heat-Induced Changes in Milk Protein Concentrate Suspensions. Foods 2024; 13:1517. [PMID: 38790816 PMCID: PMC11120200 DOI: 10.3390/foods13101517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 05/11/2024] [Accepted: 05/11/2024] [Indexed: 05/26/2024] Open
Abstract
The effect of shear on heat-induced changes in milk protein concentrate suspensions was examined at different pH levels, revealing novel insights into micellar dissociation and protein aggregation dynamics. Milk protein concentrate suspensions, adjusted to pH of 6.1, 6.4, 6.8, or 7.5, underwent combined heat (90 °C for 5 min or 121 °C for 2.6 min) and shear (0, 100, or 1000 s-1) treatment. The fragmentation of protein aggregates induced by shear was evident in the control MPC suspensions at pH 6.8, irrespective of the temperature. At pH 7.5, shear increased the heat-induced micellar dissociation. This effect was particularly pronounced at 121 °C and 1000 s-1, resulting in reduced particle size and an elevated concentration of κ-casein (κ-CN) in the non-sedimentable phase. At pH 6.1 or 6.4, shear effects were dependent on sample pH, thereby modifying electrostatic interactions and the extent of whey protein association with the micelles. At pH 6.1, shear promoted heat-induced aggregation, evidenced by an increase in particle size and a significant decline in both whey proteins and caseins in the non-sedimentable phase. At pH 6.4, shear-induced fragmentation of aggregates was observed, prominently due to comparatively higher electrostatic repulsions and fewer protein interactions. The influence of shear on heat-induced changes was considerably impacted by initial pH.
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Affiliation(s)
- Anushka Mediwaththe
- Advanced Food Systems Research Unit, Institute of Sustainable Industries & Liveable Cities, College of Sports, Health and Engineering, Victoria University, Werribee Campus, Werribee, VIC 3030, Australia; (A.M.); (T.H.)
| | - Thom Huppertz
- Advanced Food Systems Research Unit, Institute of Sustainable Industries & Liveable Cities, College of Sports, Health and Engineering, Victoria University, Werribee Campus, Werribee, VIC 3030, Australia; (A.M.); (T.H.)
- FrieslandCampina, P.O. Box 1551, 3800 BN Amersfoort, The Netherlands
- Food Quality and Design Group, Wageningen University & Research, 6708 Wageningen, The Netherlands
| | | | - Todor Vasiljevic
- Advanced Food Systems Research Unit, Institute of Sustainable Industries & Liveable Cities, College of Sports, Health and Engineering, Victoria University, Werribee Campus, Werribee, VIC 3030, Australia; (A.M.); (T.H.)
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2
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Sözeri Atik D, Öztürk Hİ, Akın N. Perspectives on the yogurt rheology. Int J Biol Macromol 2024; 263:130428. [PMID: 38403217 DOI: 10.1016/j.ijbiomac.2024.130428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 02/21/2024] [Accepted: 02/22/2024] [Indexed: 02/27/2024]
Abstract
The oral processing of yogurt is a dynamic process involving a series of deformation processes. Rheological knowledge is essential to understand the structure and flow properties of yogurt in the mouth and to explore its relationship with sensory perception. Yogurt is rheologically characterized as a non-Newtonian viscoelastic material. The rheological properties of yogurt are affected by many factors, from production to consumption. Therefore, rheological measurements are widely used to predict and control the final quality and structure of yogurts. Recent studies focus on the elucidation of the effects of cultures and processes used in production, as well as the design of different formulations to improve the rheological properties of yogurts. Moreover, the science of tribology, which dominates the surface properties of interacting substances in relative motion to evaluate the structural sensation in the later stages of eating in addition to the rheological properties that give the feeling of structure in the early stages of eating, has also become the focus of recent studies. For a detailed comprehension of the rheological properties of yogurt, this review deals with the factors affecting the rheology of yogurt, analytical methods used to determine rheological properties, microstructural and rheological characterization of yogurt, and tribological evaluations.
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Affiliation(s)
- Didem Sözeri Atik
- Tekirdağ Namık Kemal University, Department of Food Engineering, Tekirdağ, Turkey; University of Wisconsin-Madison, Department of Food Science, Madison, WI, USA.
| | - Hale İnci Öztürk
- Konya Food and Agriculture University, Department of Food Engineering, Konya, Turkey
| | - Nihat Akın
- Selçuk University, Department of Food Engineering, Konya, Turkey
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3
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Yang L, Wang L, Chi Y, Chi Y. Effect of Whole Egg Liquid on Physicochemical, Quality, Fermentation and Sensory Characteristics of Yogurt. Foods 2024; 13:321. [PMID: 38275687 PMCID: PMC10815369 DOI: 10.3390/foods13020321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 01/09/2024] [Accepted: 01/17/2024] [Indexed: 01/27/2024] Open
Abstract
With the purpose of developing an alternative set yogurt with high consumer acceptability, liquid whole egg (LWE), at levels that varied from 0 to 30%, was incorporated into set yogurt, and the effects on the physicochemical, quality, fermentation, and sensory characteristics of yogurt were evaluated. The fat content was lower in egg yogurt than in control yogurt. All color variables were significantly affected by LWE amount. The amount of bacteria in the egg yogurt was greater than in the control yogurt. Sensory analysis data suggested that color, odor, and texture consistently impacted the overall acceptability of the egg yogurt. The addition of 5% whole egg, which resulted in an increase of 6.28-fold in hardness, increase of 6.1-fold in viscosity, decrease in pH values, and a 5.6% decline in water-holding capacity (WHC). The aroma and flavor of the set yogurt was improved as well. LWE addition significantly increased the protein content and dynamic rheology. More importantly, the addition of LWE increased the protein content of the set yogurt. This investigation demonstrated the feasibility of fabricating LWE-enriched set yogurt and its superior quality compared with the corresponding normal product. It also emphasized the reconstruction of LWE with enhanced properties.
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Affiliation(s)
- Lijie Yang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China; (L.Y.); (L.W.)
| | - Lifeng Wang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China; (L.Y.); (L.W.)
| | - Yujie Chi
- College of Food Science, Northeast Agricultural University, Harbin 150030, China; (L.Y.); (L.W.)
| | - Yuan Chi
- College of Engineering, Northeast Agricultural University, Harbin 150030, China
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4
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Li S, Delger M, Dave A, Singh H, Ye A. Acid and rennet gelation properties of sheep, goat, and cow milks: Effects of processing and seasonal variation. J Dairy Sci 2023; 106:1611-1625. [PMID: 36631324 DOI: 10.3168/jds.2022-22561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 10/04/2022] [Indexed: 01/11/2023]
Abstract
Gelation is an important functional property of milk that enables the manufacture of various dairy products. This study investigated the acid (with glucono-δ-lactone) and rennet gelation properties of differently processed sheep, goat, and cow milks using small-amplitude oscillatory rheological tests. The impacts of ruminant species, milk processing (homogenization and heat treatments), seasonality, and their interactions were studied. Acid gelation properties were improved (higher gelation pH, shorter gelation time, and higher storage modulus (G') by intense heat treatment (95°C for 5 min) to comparable extents for sheep and cow milks, both better than those for goat milk. Goat milk produced weak acid gels with low G' (<100 Pa) despite improvements induced by heat treatments. Seasonality had a marked impact on the acid gelation properties of sheep milk. The acid gels of late-season sheep milk had a lower gelation pH, no maximum in tan δ following gel formation, and 70% lower G' values than those from other seasons. We propose the potential key role of a critical acid gelation pH that induces structural rearrangements in determining the viscoelastic properties of the final gels. For rennet-induced gelation, compared with cow milk, the processing treatments of the goat and sheep milks had much smaller impacts on their gelation properties. Intense heat treatment (95°C for 5 min) prolonged the rennet gelation time of homogenized cow milk by 8.6 min (74% increase) and reduced the G' of the rennet gels by 81 Pa (85% decrease). For sheep and goat milks, the same treatment altered the rennet gelation time by only less than 3 min and the G' of the rennet gels by less than 14 Pa. This difference may have been caused by the different physicochemical properties of the milks, such as differences in their colloidal stability, proportion of serum-phase caseins, and ionic calcium concentration. The seasonal variations in the gelation properties (both acid and rennet induced) of goat milk could be explained by the minor variation in its protein and fat contents. This study provides new perspectives and understandings of milk gelation by demonstrating the interactive effects among ruminant species, processing, and seasonality.
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Affiliation(s)
- Siqi Li
- Riddet Institute, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand.
| | - Munkhzul Delger
- Riddet Institute, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
| | - Anant Dave
- Riddet Institute, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
| | - Harjinder Singh
- Riddet Institute, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
| | - Aiqian Ye
- Riddet Institute, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand.
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5
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Vénica CI, Wolf VI, Spotti MJ, Capra ML, Mercanti DJ, Perotti MC. Impact of protein-providing milk ingredients on volatile compounds, microstructure, microbiology and physicochemical characteristics of yogurts. FOOD BIOSCI 2023. [DOI: 10.1016/j.fbio.2023.102588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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6
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Qi X, Liu D, Yuan J, Regenstein JM, Zhou P. Effects of heating temperatures and pH of skim milk fortified with milk protein concentrate on the texture and microstructure of high-protein yoghurts. Int Dairy J 2022. [DOI: 10.1016/j.idairyj.2022.105395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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7
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Díaz-Bustamante ML, Fernández-Niño M, Reyes LH, Alvarez Solano OA. Multiscale Approach to Dairy Products Design. FRONTIERS IN CHEMICAL ENGINEERING 2022. [DOI: 10.3389/fceng.2022.830314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Dairy products are among the most popular nutritious foods in the world. Understanding the relationship between the composition, process, and structural properties at different scales (molecular, microscopic, and macroscopic) is fundamental to designing dairy products. This review highlights the need to analyze this relationship from different scales as an essential step during product design through a multiscale approach.
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9
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Islam SMR, Tanzina AY, Foysal MJ, Hoque MN, Rumi MH, Siddiki AMAMZ, Tay ACY, Hossain MJ, Bakar MA, Mostafa M, Mannan A. Insights into the nutritional properties and microbiome diversity in sweet and sour yogurt manufactured in Bangladesh. Sci Rep 2021; 11:22667. [PMID: 34811394 PMCID: PMC8608820 DOI: 10.1038/s41598-021-01852-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Accepted: 10/27/2021] [Indexed: 11/09/2022] Open
Abstract
Yogurt is one of the most frequently consumed dairy products for nutritional benefits. Although yogurt is enriched with probiotics, it is susceptible to spoilage because of the presence of pathogenic microbes. Spoiled yogurt if consumed can cause food-borne diseases. This study aimed to assess the nutritional composition and microbiome diversity in yogurt manufactured in Bangladesh. Microbial diversity was analyzed through high-throughput sequencing of bacterial 16S rRNA gene and fungal internal transcribed spacer (ITS) region. From nutritional analysis, significantly (P < 0.05) higher pH, fat, moisture, total solid and solid-non-fat contents (%) were observed in sweet yogurt. Following the classification of Illumina sequences, 84.86% and 72.14% of reads were assigned to bacterial and fungal genera, respectively, with significantly higher taxonomic richness in sour yogurt prepared from buffalo. A significant difference in bacterial (Ppermanova = 0.001) and fungal (Ppermanova = 0.013) diversity between sweet and sour yogurt was recorded. A total of 76 bacterial and 70 fungal genera were detected across these samples which were mostly represented by Firmicutes (92.89%) and Ascomycota (98%) phyla, respectively. This is the first study that accentuates nutritional profiles and microbiome diversity of Bangladeshi yogurt which are crucial in determining both active and passive health effects of yogurt consumption in individuals.
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Affiliation(s)
- S M Rafiqul Islam
- Department of Genetic Engineering and Biotechnology, Faculty of Biological Sciences, University of Chittagong, Chattogram, 4331, Bangladesh.
| | - Afsana Yeasmin Tanzina
- Department of Genetic Engineering and Biotechnology, Faculty of Biological Sciences, University of Chittagong, Chattogram, 4331, Bangladesh
| | - Md Javed Foysal
- School of Molecular and Life Sciences, Curtin University, Bentley, WA, 6102, Australia
- Department of Genetic Engineering and Biotechnology, Shahjalal University of Science and Technology, Sylhet, 3114, Bangladesh
| | - M Nazmul Hoque
- Department of Gynecology, Obstetrics and Reproductive Health, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706, Bangladesh
| | - Meheadi Hasan Rumi
- Department of Genetic Engineering and Biotechnology, Faculty of Biological Sciences, University of Chittagong, Chattogram, 4331, Bangladesh
| | - A M A M Zonaed Siddiki
- Department of Pathology and Parasitology, Chattogram Veterinary and Animal Sciences University, Chattogram, 4225, Bangladesh
| | - Alfred Chin-Yen Tay
- Helicobacter Research Laboratory, The Marshall Centre, University of Western Australia, Perth, WA, 6009, Australia
| | - M Jakir Hossain
- Forest Chemistry Division, Bangladesh Forest Research Institute, Chattogram, 4211, Bangladesh
| | - Muhammad Abu Bakar
- Bangladesh Council of Scientific and Industrial Research (BCSIR) Laboratories, Chattogram, 4220, Bangladesh
| | - Mohammad Mostafa
- Bangladesh Council of Scientific and Industrial Research (BCSIR) Laboratories, Chattogram, 4220, Bangladesh
| | - Adnan Mannan
- Department of Genetic Engineering and Biotechnology, Faculty of Biological Sciences, University of Chittagong, Chattogram, 4331, Bangladesh.
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10
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Asaduzzaman M, Mahomud MS, Haque ME. Heat-Induced Interaction of Milk Proteins: Impact on Yoghurt Structure. INTERNATIONAL JOURNAL OF FOOD SCIENCE 2021; 2021:5569917. [PMID: 34604378 PMCID: PMC8483934 DOI: 10.1155/2021/5569917] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 08/16/2021] [Accepted: 09/11/2021] [Indexed: 12/03/2022]
Abstract
Heating milk for yoghurt preparation has a significant effect on the structural properties of yoghurt. Milk heated at elevated temperature causes denaturation of whey protein, aggregation, and some case gelation. It is important to understand the mechanism involved in each state of stabilization for tailoring the final product. We review the formation of these complexes and their consequence on the physical, rheological, and microstructural properties of acid milk gels. To investigate the interactions between denatured whey protein and casein, the formation of covalent and noncovalent bonds, localization of the complexes, and their impact on ultimate gelation and final yoghurt texture are reviewed. The information regarding this fundamental mechanism will be beneficial to develop uniform quality yoghurt texture and potential interest of future research.
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Affiliation(s)
- Md Asaduzzaman
- Faculty of Science and Technology, Free University of Bolzano, Piazza Università 1, 39100 Bolzano, Italy
| | - Md Sultan Mahomud
- Department of Food Engineering and Technology, Hajee Mohammad Danesh Science and Technology University, Dinajpur 5200, Bangladesh
| | - Mohammod Enamul Haque
- Department of Animal Nutrition, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
- Bangladesh Milk Producers' Cooperative Union Ltd., Dhaka 1216, Bangladesh
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11
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Mahomud MS, Haque MA, Akhter N, Asaduzzaman M. Effect of milk pH at heating on protein complex formation and ultimate gel properties of free-fat yoghurt. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2021; 58:1969-1978. [PMID: 33897033 DOI: 10.1007/s13197-020-04708-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 05/22/2020] [Accepted: 08/11/2020] [Indexed: 11/29/2022]
Abstract
The effect of milk pH before heating on casein-whey protein interactions and ultimate gel properties of the free-fat yoghurt was investigated. Reconstituted skim milk at different pH values (6.4, 6.8 and 7.2) was heated at 80 °C for 30 min. The type of protein and size of casein micelle in milk were determined. The storage modulus (G'), loss tangent (tan δ), flow behaviour as well as microstructure, firmness and water holding capacity of the yoghurt samples were measured. Heating milk at pH 7.2 formed mostly soluble protein complexes whereas at pH 6.4 micelle bound complexes was dominant. However, heating milk at pH 6.8 resulted in a relatively compact protein network due to a balanced contribution from both soluble protein/κ-casein complexes and whey protein-casein micelle associated complexes. Yoghurt prepared with milk heated at pH 6.8 showed significantly higher G' values, shorter gelation times, higher water holding capacity, firmness and more compact protein network compared to those at pH 6.4, 7.2 and unheated milk. The obtained results demonstrated that milk pH adjustment before heating could be an important factor governing uniform quality yoghurt production.
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Affiliation(s)
- Md Sultan Mahomud
- Department of Food Engineering and Technology, Hajee Mohammad Danesh Science and Technology University, Dinajpur, 5200 Bangladesh
| | - Md Azizul Haque
- Faculty of Science and Technology, Free University of Bolzano, 39100 Bolzano, Italy.,Department of Food Technology and Nutritional Science, Mawlana Bhashani Science and Technology University, Tangail, 1902 Bangladesh
| | - Nasrin Akhter
- Faculty of Science and Technology, Free University of Bolzano, 39100 Bolzano, Italy
| | - Md Asaduzzaman
- Faculty of Science and Technology, Free University of Bolzano, 39100 Bolzano, Italy
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12
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Singh R, Amamcharla JK. Effect of pH on heat-induced interactions in high-protein milk dispersions and application of fluorescence spectroscopy in characterizing these changes. J Dairy Sci 2021; 104:3899-3915. [PMID: 33612213 DOI: 10.3168/jds.2020-19304] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 11/16/2020] [Indexed: 11/19/2022]
Abstract
This study investigated casein-whey protein interactions in high-protein milk dispersions (5% protein wt/wt) during heating at 90°C for 1.5 to 7.5 min at 3 different pH of 6.5, 6.8, and 7.0, using both conventional methods (gel electrophoresis, physicochemical properties) and fluorescence spectroscopy. Conventional methods confirmed the presence of milk protein aggregates during heating, similar to skim milk. These methods were able to help in understanding the denaturation and aggregation of milk proteins as a function of heat treatment. However, the results from the conventional methods were greatly affected by batch-to-batch variations and, therefore, differentiation could be drawn only in nonheated samples and samples heated for a longer duration. The front-face fluorescence spectroscopy was found to be a useful tool that provided additional information to conventional methods and helped in understanding differences between nonheated, low-, and high-heated samples, along with the type of sample used (derived from liquid or powder milk protein concentrates). At all pH values, tryptophan maxima in nonheated samples derived from powdered milk protein concentrates presented a blue shift in comparison to samples derived from liquid milk protein concentrates, and tryptophan maxima in heated samples presented a red shift. With the heating of the sample, Maillard emission and excitation spectra also showed increases in the peak intensities from 408 to 432 and 260 to 290 nm, respectively. As the level of denaturation increased with heating, a marked differentiation can be seen in the principal component analysis plots of tryptophan, Maillard emission, and excitation spectra, indicating that the front-face fluorescence technique has a potential to monitor and classify samples according to milk protein interactions as a function of pH and heat exposure. Overall, it can be said that the pattern of protein-protein interactions in high-protein dispersions was similar to the observation reported in skim milk systems, and fluorescence spectroscopy with chemometrics can be used as a rapid, nondestructive, and complementary method to conventional methods for following heat-induced changes.
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Affiliation(s)
- Richa Singh
- Department of Animal Sciences and Industry, Food Science Institute, Kansas State University, Manhattan 66506; ICAR-National Dairy Research Institute, Karnal-132001, Haryana, India
| | - J K Amamcharla
- Department of Animal Sciences and Industry, Food Science Institute, Kansas State University, Manhattan 66506.
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13
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The effects of casein and whey proteins on the rheological properties of calcium-induced skim milk gels. Int Dairy J 2021. [DOI: 10.1016/j.idairyj.2020.104893] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Li S, Ye A, Singh H. Effects of seasonal variations on the quality of set yogurt, stirred yogurt, and Greek-style yogurt. J Dairy Sci 2020; 104:1424-1432. [PMID: 33309362 DOI: 10.3168/jds.2020-19071] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 09/19/2020] [Indexed: 11/19/2022]
Abstract
We studied the effects of seasonal variations on the quality of stirred yogurt, set yogurt, and Greek-style yogurt over 2 milking seasons in New Zealand. Correlations between the properties of the yogurts, the characteristics of the milk, and the acid gelation properties induced by glucono-δ-lactone, reported in our previous works, were also explored. Set yogurt and Greek-style yogurt from the early season had the highest firmness over the seasons. The yogurt firmness correlated with the gel strength of glucono-δ-lactone-induced acid gels, indicating that the latter could, to some extent, predict the seasonal variations in the firmness of set yogurt. The correlation studies highlighted the potentially important role of the glycosylation of κ-casein in the seasonal variations in the yogurt structures. Yogurt made from mid-season milk had the lowest water-holding capacity, which may have played a part in lowering its firmness and viscosity. Late-season stirred yogurt displayed the strongest resistance to shear-induced thinning, which might arise from the unique viscoelastic properties of late-season yogurt gels.
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Affiliation(s)
- Siqi Li
- Riddet Institute, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
| | - Aiqian Ye
- Riddet Institute, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand.
| | - Harjinder Singh
- Riddet Institute, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
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15
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Kowalski R, Gustafson E, Carroll M, Gonzalez de Mejia E. Enhancement of Biological Properties of Blackcurrants by Lactic Acid Fermentation and Incorporation into Yogurt: A Review. Antioxidants (Basel) 2020; 9:antiox9121194. [PMID: 33261067 PMCID: PMC7759768 DOI: 10.3390/antiox9121194] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 11/24/2020] [Accepted: 11/25/2020] [Indexed: 12/24/2022] Open
Abstract
Blackcurrants (BC) and yogurt are known to possess several health benefits. The objective of this review was to compile the latest information on the effect of lactic acid fermentation on BC and their incorporation into yogurt, including the impact of this combination on chemical composition, sensory aspects, and health attributes of the blend. Google Scholar, Scopus, and PubMed were used to research the most recent literature on BC juice, the whole BC berry, and yogurt. Health benefits were assessed from human and animal studies within the last 5 years. The results suggest that BC have several health promoting compounds that ameliorate some neurological disorders and improve exercise recovery. Yogurt contains compounds that can be used to manage diseases such as type 2 diabetes (T2D) and irritable bowel disease (IBD). Fermenting BC with lactic acid bacteria (LAB) and its incorporation into yogurt products increases the polyphenol and antioxidant capacity of BC, creating a blend of prebiotics and probiotics compounds with enhanced benefits. More research is needed in the area of lactic acid fermentation of berries in general, especially BC.
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Zajác P, Kúšová L, Benešová L, Čapla J, Čurlej J, Golian J. Effect of commercial yogurt starter cultures on fermentation process, texture and sensoric parameters of white yogurt. POTRAVINARSTVO 2020. [DOI: 10.5219/1377] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
In this work, we have compared and described the fermentation process of two commercial yogurt starter cultures during the white yogurt production. We used freeze-dried thermophilic starter culture YoFlex® YF - L812 and deep-frozen starter culture Delvo® Fresh YS – 241 for the production of white yogurts. We analysed titration acidity, active acidity, total viable counts, texture, and sensory parameters of white yogurts produced in laboratory conditions. This research was performed for dairy company Mliekareň Kopanice Selce, s.r.o., Slovakia. We did not found statistically significant differences (p >0.05) in titration acidity of both yogurts after 7 hours of fermentation. We did not found statistically significant differences (p >0.05) in the pH of both yogurts after 7 hours of fermentation. We found statistically significant differences (p <0.05) in all textural parameters (hardness, consistency, cohesion, and viscosity). The total viable count of microorganisms in yogurts after 24 hours of fermentation was 6.28 x 107 and 7.14 x 107 respectively.
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17
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18
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Gélébart P, Riaublanc A, Famelart MH, Jonchère C, Beaumal V, Anton M, Garnier C. Protein aggregates modulate the texture of emulsified and acidified acid milk gels. Food Hydrocoll 2019. [DOI: 10.1016/j.foodhyd.2019.02.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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19
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Nastaj M, Sołowiej BG, Gustaw W, Peréz‐Huertas S, Mleko S, Wesołowska‐Trojanowska M. Physicochemical properties of High‐Protein‐Set Yoghurts obtained with the addition of whey protein preparations. INT J DAIRY TECHNOL 2019. [DOI: 10.1111/1471-0307.12603] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Maciej Nastaj
- Department of Milk Technology and Hydrocolloids University of Life Sciences Skromna 8 20‐704 Lublin Poland
| | - Bartosz G Sołowiej
- Department of Milk Technology and Hydrocolloids University of Life Sciences Skromna 8 20‐704 Lublin Poland
| | - Waldemar Gustaw
- Department of Technology of Fruits, Vegetables and Mushrooms University of Life Sciences Skromna 8 20‐704 Lublin Poland
| | - Salvador Peréz‐Huertas
- Department of Physical Chemistry‐Interfacial Phenomena Maria Curie Skłodowska University M. Curie Skłodowska Sq. 3 20‐031 Lublin Poland
| | - Stanisław Mleko
- Department of Milk Technology and Hydrocolloids University of Life Sciences Skromna 8 20‐704 Lublin Poland
| | - Marta Wesołowska‐Trojanowska
- Department of Biotechnology, Microbiology and Human Nutrition University of Life Sciences Skromna 820‐704Lublin Poland
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21
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Yildiz E, Ozcan T. Functional and textural properties of vegetable‐fibre enriched yoghurt. INT J DAIRY TECHNOL 2018. [DOI: 10.1111/1471-0307.12566] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Eda Yildiz
- Department of Food Engineering Uludag University 16059 Bursa Turkey
| | - Tulay Ozcan
- Department of Food Engineering Uludag University 16059 Bursa Turkey
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22
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23
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Effect of micellar κ-casein dissociation on the formation of soluble protein complexes and acid gel properties. Lebensm Wiss Technol 2018. [DOI: 10.1016/j.lwt.2017.10.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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24
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Mahomud MS, Katsuno N, Nishizu T. Formation of soluble protein complexes and yoghurt properties influenced by the addition of whey protein concentrate. INNOV FOOD SCI EMERG 2017. [DOI: 10.1016/j.ifset.2017.05.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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25
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Akin Z, Ozcan T. Functional properties of fermented milk produced with plant proteins. Lebensm Wiss Technol 2017. [DOI: 10.1016/j.lwt.2017.07.025] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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26
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Mahomud MS, Katsuno N, Zhang L, Nishizu T. Physical, rheological, and microstructural properties of whey protein enriched yogurt influenced by heating the milk at different pH values. J FOOD PROCESS PRES 2017. [DOI: 10.1111/jfpp.13236] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Md. Sultan Mahomud
- Department of Applied Life Science; Gifu University, Yanagido1-1; Gifu 501-1193 Japan
| | - Nakako Katsuno
- Department of Applied Life Science; Gifu University, Yanagido1-1; Gifu 501-1193 Japan
| | - Lifen Zhang
- Department of Applied Life Science; Gifu University, Yanagido1-1; Gifu 501-1193 Japan
| | - Takahisa Nishizu
- Department of Applied Life Science; Gifu University, Yanagido1-1; Gifu 501-1193 Japan
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