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Yap M, O'Sullivan O, O'Toole PW, Sheehan JJ, Fenelon MA, Cotter PD. Seasonal and geographical impact on the Irish raw milk microbiota correlates with chemical composition and climatic variables. mSystems 2024; 9:e0129023. [PMID: 38445870 PMCID: PMC11019797 DOI: 10.1128/msystems.01290-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 02/14/2024] [Indexed: 03/07/2024] Open
Abstract
Season and location have previously been shown to be associated with differences in the microbiota of raw milk, especially in milk from pasture-based systems. Here, we further advance research in this area by examining differences in the raw milk microbiota from several locations across Ireland over 12 months, and by investigating microbiota associations with climatic variables and chemical composition. Shotgun metagenomic sequencing was used to investigate the microbiota of raw milk collected from nine locations (n = 241). Concurrent chemical analysis of the protein, fat, lactose, total solids, nonprotein nitrogen contents, and titratable acidity (TA) of the same raw milk were performed. Although the raw milk microbiota was highly diverse, a core microbiota was found, with Pseudomonas_E, Lactococcus, Acinetobacter, and Leuconostoc present in all samples. Microbiota diversity significantly differed by season and location, with differences in seasonality and geography corresponding to 11.8% and 10.5% of the variation in the microbiota. Functional and antibiotic resistance profiles also varied across season and location. The analysis of other metadata revealed additional interactions, such as an association between mean daily air and grass temperatures with the abundance of spoilage taxa like Pseudomonas species. Correlations were identified between pathogenic, mastitis-related species, fat content, and the number of sun hours, suggesting a seasonal effect. Ultimately, this study expands our understanding of the interconnected nature of the microbiota, environment/climate variables, and chemical composition of raw milk and provides evidence of a season- and location-specific microbiota. IMPORTANCE The microbiota of raw milk is influenced by many factors that encourage or prevent the introduction and growth of both beneficial and undesirable microorganisms. The seasonal and geographical impacts on the microbial communities of raw milk have been previously seen, but the relationships with environmental factors and the chemical composition has yet to be investigated. In this year-long study, we found that while raw milk is highly diverse, a core microbiota was detected for Irish raw milk, with strong evidence of seasonal and geographical influence. We also found associations between groups of microorganisms, environmental factors, and milk composition, which expand current knowledge on the relationships between microbial and chemical composition and the climate. These results provide evidence for the development of a tool to allow for the prediction of raw milk quality and safety.
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Affiliation(s)
- Min Yap
- Teagasc Food Research Centre, Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
| | - Orla O'Sullivan
- Teagasc Food Research Centre, Cork, Ireland
- APC Microbiome Ireland, Cork, Ireland
- VistaMilk SFI Research Centre, Cork, Ireland
| | - Paul W. O'Toole
- School of Microbiology, University College Cork, Cork, Ireland
- APC Microbiome Ireland, Cork, Ireland
| | - Jeremiah J. Sheehan
- Teagasc Food Research Centre, Cork, Ireland
- VistaMilk SFI Research Centre, Cork, Ireland
- Dairy Processing Technology Centre (DPTC), Limerick, Ireland
| | - Mark A. Fenelon
- Teagasc Food Research Centre, Cork, Ireland
- VistaMilk SFI Research Centre, Cork, Ireland
- Dairy Processing Technology Centre (DPTC), Limerick, Ireland
| | - Paul D. Cotter
- Teagasc Food Research Centre, Cork, Ireland
- APC Microbiome Ireland, Cork, Ireland
- VistaMilk SFI Research Centre, Cork, Ireland
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Kamani MH, Liu J, Fitzsimons SM, Fenelon MA, Murphy EG. Determining the influence of fava bean pre-processing on extractability and functional quality of protein isolates. Food Chem X 2024; 21:101200. [PMID: 38379800 PMCID: PMC10877547 DOI: 10.1016/j.fochx.2024.101200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 01/24/2024] [Accepted: 02/04/2024] [Indexed: 02/22/2024] Open
Abstract
In this study, fava bean protein (FPI) was isolated from flours prepared from dehulled seeds and compared to FPI extracted from whole flours; in the latter case, flours were prepared either by dry- or wet-milling. Significant differences in composition and functionality were observed between the three FPIs produced. Dehulling maximized protein purity, oil-absorption capacity, solubility, foamablity and minimized both starchy and non-starchy carbohydrate contents. Protein isolated from wet-milled whole beans provided higher mass and extraction yields, better water-absorption capacity, and exhibited higher surface charge (zeta potential) compared to other samples. The protein extracted from dry-milled whole seed exhibited a higher least gelation concentration, emulsifying activity and zeta value compared to its dehulled counterpart. Dehulling was also found to be a useful process to increase the lightness/whiteness of protein powder. Overall, the present findings provide useful technological information relating to the production of FPI with and without a dehulling step.
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Affiliation(s)
- Mohammad Hassan Kamani
- Food Chemistry and Technology Department, Teagasc Food Research Centre, Moorepark, Fermoy, County Cork, Ireland
| | - Jianlei Liu
- Academy of National Food and Strategic Reserves Administration, Beijing 102629, China
| | - Sinead M. Fitzsimons
- Food Chemistry and Technology Department, Teagasc Food Research Centre, Moorepark, Fermoy, County Cork, Ireland
| | - Mark A. Fenelon
- Food Chemistry and Technology Department, Teagasc Food Research Centre, Moorepark, Fermoy, County Cork, Ireland
| | - Eoin G. Murphy
- Food Chemistry and Technology Department, Teagasc Food Research Centre, Moorepark, Fermoy, County Cork, Ireland
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3
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Corrigan BM, O'Mahony JA, Fenelon MA. The effect of whey source on heat-induced aggregation of casein and whey protein mixtures of relevance to infant nutritional product formulation. J Dairy Sci 2023; 106:8299-8311. [PMID: 38040197 DOI: 10.3168/jds.2022-22088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 06/25/2022] [Indexed: 12/03/2023]
Abstract
Sweet and, to a lesser extent, acid whey protein ingredients can be used for the formulation of infant nutritional products. Unlike acid whey, sweet whey contains caseinomacropeptide (CMP), a heat-stable peptide liberated from κ-casein during cheese and rennet casein manufacture. Four protein systems-sweet whey (SW) and acid whey (AW), with or without standardization for CMP protein content-were added to skim milk (50/50, wt/wt) and unheated or heated to 85 or 110°C. These 12 samples were assessed for physicochemical stability in the presence of added calcium at pH 6.8. The effect of CMP content on the physicochemical properties of the protein systems was also assessed. Without preheat treatment, mixtures of AW and skim milk (SM) were more heat stable than SW and SM, demonstrating the effect of whey protein type on heat stability. Preheat treatment of the SW in the presence of SM significantly improved the heat stability of the resultant protein systems on subsequent heating. All of the protein systems had significantly lower heat stability with the addition of Ca, although the reduction was significantly smaller for the heated protein systems than the unheated controls. The findings can help identify heating parameters and ingredients for optimizing processing stability and physicochemical characteristics of nutritional beverages such as infant formulations.
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Affiliation(s)
- Bernard M Corrigan
- Food Chemistry and Technology Department, Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland P61 C996
| | - James A O'Mahony
- School of Food and Nutritional Sciences, University College Cork, Cork, Ireland T12 TP07
| | - Mark A Fenelon
- Food Chemistry and Technology Department, Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland P61 C996; School of Food and Nutritional Sciences, University College Cork, Cork, Ireland T12 TP07.
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4
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Kamani MH, Neji C, Fitzsimons SM, Fenelon MA, Murphy EG. Unlocking the nutritional and functional potential of legume waste to produce protein ingredients. Crit Rev Food Sci Nutr 2023:1-19. [PMID: 36876476 DOI: 10.1080/10408398.2023.2184322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
Abstract
Worldwide, many production supply chains generate a considerable amount of legume by-products (e.g., leaves, husks, broken seeds, defatted cakes). These wastes can be revalorized to develop sustainable protein ingredients, with positive economic and environmental effects. To separate protein from legume by-products, a broad spectrum of conventional (e.g., alkaline solubilization, isoelectric precipitation, membrane filtration) and novel methodologies (e.g., ultrasound, high-pressure homogenization, enzymatic approaches) have been studied. In this review, these techniques and their efficiency are discussed in detail. The present paper also provides an overview of the nutritional and functional characteristics of proteins extracted from legume by-products. Moreover, existing challenges and limitations associated with the valorization of by-product proteins are highlighted, and future perspectives are proposed.
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Affiliation(s)
- Mohammad Hassan Kamani
- Food Chemistry and Technology Department, Teagasc Food Research Centre, Moorepark, County Cork, Ireland
| | - Chaima Neji
- Institute of Nutrition, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, Debrecen, Hungary
| | - Sinead M Fitzsimons
- Food Chemistry and Technology Department, Teagasc Food Research Centre, Moorepark, County Cork, Ireland
| | - Mark A Fenelon
- Food Chemistry and Technology Department, Teagasc Food Research Centre, Moorepark, County Cork, Ireland
| | - Eoin G Murphy
- Food Chemistry and Technology Department, Teagasc Food Research Centre, Moorepark, County Cork, Ireland
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Hayes E, Wallace D, O'Donnell C, Greene D, Hennessy D, O'Shea N, Tobin JT, Fenelon MA. Trend analysis and prediction of seasonal changes in milk composition from a pasture-based dairy research herd. J Dairy Sci 2023; 106:2326-2337. [PMID: 36759275 DOI: 10.3168/jds.2021-21483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 09/09/2022] [Indexed: 02/10/2023]
Abstract
The composition of seasonal pasture-produced milk is influenced by stage of lactation, animal genetics, and nutrition, which affects milk nutritional profile and processing characteristics. The objective was to study the effect of lactation stage (early, mid, and late lactation) and diet on milk composition in an Irish spring calving dairy research herd from 2012 to 2020 using principal component and predictive analytics. Crude protein, casein, fat, and solids increased from 2012 to 2020, whereas lactose concentration peaked in 2017, then decreased. Based on seasonal data from 2013 to 2016, forecasting models were successfully created to predict milk composition for 2017 to 2020. The diet of cows in this study is dependent upon grass growth rates across the milk production season, which in turn, are influenced by weather patterns, whereby extreme weather conditions (rainfall and temperature) were correlated with decreasing grass growth and increasing nonprotein nitrogen levels in milk. The study demonstrates a significant change in milk composition since 2012 and highlights the effect that seasonal changes such as weather and grass growth have on milk composition of pasture-based systems. The potential to forecast milk composition at different stages of lactation benefits processers by facilitating the optimization of in-process and supply logistics of dairy products.
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Affiliation(s)
- E Hayes
- Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland, P61C996; School of Biosystems and Food Engineering, University College Dublin, Ireland, D04V1W8
| | - D Wallace
- School of Computer Science, University College Dublin, Ireland, D04V1W8
| | - C O'Donnell
- School of Biosystems and Food Engineering, University College Dublin, Ireland, D04V1W8
| | - D Greene
- School of Computer Science, University College Dublin, Ireland, D04V1W8
| | - D Hennessy
- Teagasc Animal and Grassland Centre, Moorepark, Fermoy, Co. Cork, Ireland, P61C996
| | - N O'Shea
- Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland, P61C996
| | - J T Tobin
- Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland, P61C996
| | - M A Fenelon
- Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland, P61C996; School of Biosystems and Food Engineering, University College Dublin, Ireland, D04V1W8.
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6
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Subhir S, McSweeney PL, Fenelon MA, Tobin JT. Low temperature microfiltration of skim milk: Impact of membrane type, configuration and concentration factor on serum protein permeation efficiency. Int Dairy J 2023. [DOI: 10.1016/j.idairyj.2022.105500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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7
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Hayes E, Greene D, O’Donnell C, O’Shea N, Fenelon MA. Spectroscopic technologies and data fusion: Applications for the dairy industry. Front Nutr 2023; 9:1074688. [PMID: 36712542 PMCID: PMC9875022 DOI: 10.3389/fnut.2022.1074688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 12/05/2022] [Indexed: 01/12/2023] Open
Abstract
Increasing consumer awareness, scale of manufacture, and demand to ensure safety, quality and sustainability have accelerated the need for rapid, reliable, and accurate analytical techniques for food products. Spectroscopy, coupled with Artificial Intelligence-enabled sensors and chemometric techniques, has led to the fusion of data sources for dairy analytical applications. This article provides an overview of the current spectroscopic technologies used in the dairy industry, with an introduction to data fusion and the associated methodologies used in spectroscopy-based data fusion. The relevance of data fusion in the dairy industry is considered, focusing on its potential to improve predictions for processing traits by chemometric techniques, such as principal component analysis (PCA), partial least squares regression (PLS), and other machine learning algorithms.
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Affiliation(s)
- Elena Hayes
- University College Dublin (UCD) School of Biosystems and Food Engineering, University College Dublin, Dublin, Ireland,Teagasc Food Research Centre, Moorepark, Fermoy, Ireland
| | - Derek Greene
- University College Dublin (UCD) School of Computer Science, University College Dublin, Dublin, Ireland
| | - Colm O’Donnell
- University College Dublin (UCD) School of Biosystems and Food Engineering, University College Dublin, Dublin, Ireland
| | - Norah O’Shea
- Teagasc Food Research Centre, Moorepark, Fermoy, Ireland
| | - Mark A. Fenelon
- University College Dublin (UCD) School of Biosystems and Food Engineering, University College Dublin, Dublin, Ireland,Teagasc Food Research Centre, Moorepark, Fermoy, Ireland,*Correspondence: Mark A. Fenelon,
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8
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Xia X, Arju G, Taivosalo A, Lints T, Kriščiunaite T, Vilu R, Corrigan BM, Gai N, Fenelon MA, Tobin JT, Kilcawley K, Kelly AL, McSweeney PL, Sheehan JJ. Effect of β-casein reduction and high heat treatment of micellar casein concentrate on proteolysis, texture and the volatile profile of resultant Emmental cheese during ripening. Int Dairy J 2022. [DOI: 10.1016/j.idairyj.2022.105540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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9
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Ouyang H, Kilcawley KN, Miao S, Fenelon MA, Kelly AL, Sheehan JJ. Effect of konjac glucomannan and soy soluble polysaccharides on the rheological, microstructural and syneretic properties of rennet gels. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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10
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Subhir S, McSweeney PL, Fenelon MA, Magan JB, Tobin JT. Suitability of nitrogen fractions determination to assess serum protein separation efficiency from a mass balance perspective during microfiltration of skim milk. Int Dairy J 2022. [DOI: 10.1016/j.idairyj.2022.105319] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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11
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Hailu Y, O’Mahony JA, Fenelon MA, McCarthy NA. Colloidal stabilisation of β-casein enriched whey protein concentrate. Int Dairy J 2022. [DOI: 10.1016/j.idairyj.2022.105401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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12
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Xia X, Tobin JT, Fenelon MA, Mcsweeney PLH, Sheehan JJ. Production, composition and preservation of micellar casein concentrate and its application in cheesemaking: A review. INT J DAIRY TECHNOL 2021. [DOI: 10.1111/1471-0307.12829] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiaofeng Xia
- Teagasc Food Research Centre Moorepark Fermoy Co. Cork P61 C996
- School of Food and Nutritional Sciences University College Cork Cork T12 YN60 Ireland
| | - John T Tobin
- Teagasc Food Research Centre Moorepark Fermoy Co. Cork P61 C996
| | - Mark A Fenelon
- Teagasc Food Research Centre Moorepark Fermoy Co. Cork P61 C996
| | - Paul L H Mcsweeney
- School of Food and Nutritional Sciences University College Cork Cork T12 YN60 Ireland
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13
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Xia X, Tobin JT, Subhir S, Fenelon MA, McSweeney PL, Sheehan JJ. Effect of thermal treatment on serum protein reduced micellar casein concentrate: An evaluation of rennet coagulability, cheese composition and yield. Int Dairy J 2021. [DOI: 10.1016/j.idairyj.2020.104902] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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14
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Magan JB, O’Callaghan TF, Zheng J, Zhang L, Mandal R, Hennessy D, Fenelon MA, Wishart DS, Kelly AL, McCarthy NA. Effect of Diet on the Vitamin B Profile of Bovine Milk-Based Protein Ingredients. Foods 2020; 9:E578. [PMID: 32375412 PMCID: PMC7278826 DOI: 10.3390/foods9050578] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 04/20/2020] [Accepted: 04/24/2020] [Indexed: 12/21/2022] Open
Abstract
The influence of diet on the water-soluble vitamin composition of skim milk powder and whey protein ingredients produced from the milk of cows fed pasture or concentrate-based diets was examined. Fifty-one Holstein-Friesian cows were randomly assigned into three diets (n=17) consisting of outdoor grazing of perennial ryegrass (GRS), perennial ryegrass/white clover (CLV), or indoor feeding of total mixed ration (TMR) for an entire lactation. Raw mid-lactation milk from each group was processed into skim milk powder and further processed to yield micellar casein whey and acid whey. Sweet whey was also produced by renneting of pasteurised whole milk from each system. The water-soluble vitamin profile of each sample was analysed using a combination of direct injection mass spectrometry and reverse-phase liquid chromatography-mass spectrometry. Vitamin B3 and B3-amide concentrations were significantly higher (p < 0.05) in TMR-derived samples than in those from CLV and GRS, respectively. Vitamin B1, B2, and B7 concentrations were significantly higher in GRS and CLV-derived samples than those from TMR. Significant differences in vitamins B1, B2, and B3-amide were also observed between protein ingredient types. This study indicates that bovine feeding systems have a significant effect on B vitamin composition across a range of protein ingredient types.
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Affiliation(s)
- Jonathan B. Magan
- Food Chemistry & Technology Department, Teagasc Food Research Centre, Moorepark, Fermoy, P61 C996 Cork, Ireland; (J.B.M.); (T.F.O.); (M.A.F.)
- School of Food and Nutritional Sciences, University College Cork, T12 YT20 Cork, Ireland;
| | - Tom F. O’Callaghan
- Food Chemistry & Technology Department, Teagasc Food Research Centre, Moorepark, Fermoy, P61 C996 Cork, Ireland; (J.B.M.); (T.F.O.); (M.A.F.)
| | - Jiamin Zheng
- The Metabolomics Innovation Centre, School of Biological Sciences, University of Alberta, Edmonton, AB T6G1C9, Canada; (J.Z.); (L.Z.); (R.M.); (D.S.W.)
| | - Lun Zhang
- The Metabolomics Innovation Centre, School of Biological Sciences, University of Alberta, Edmonton, AB T6G1C9, Canada; (J.Z.); (L.Z.); (R.M.); (D.S.W.)
| | - Rupasri Mandal
- The Metabolomics Innovation Centre, School of Biological Sciences, University of Alberta, Edmonton, AB T6G1C9, Canada; (J.Z.); (L.Z.); (R.M.); (D.S.W.)
| | - Deirdre Hennessy
- Teagasc Animal and Grassland Research & Innovation Centre, Moorepark, Fermoy, P61 C996 Cork, Ireland;
| | - Mark A. Fenelon
- Food Chemistry & Technology Department, Teagasc Food Research Centre, Moorepark, Fermoy, P61 C996 Cork, Ireland; (J.B.M.); (T.F.O.); (M.A.F.)
| | - David S. Wishart
- The Metabolomics Innovation Centre, School of Biological Sciences, University of Alberta, Edmonton, AB T6G1C9, Canada; (J.Z.); (L.Z.); (R.M.); (D.S.W.)
| | - Alan L. Kelly
- School of Food and Nutritional Sciences, University College Cork, T12 YT20 Cork, Ireland;
| | - Noel A. McCarthy
- Food Chemistry & Technology Department, Teagasc Food Research Centre, Moorepark, Fermoy, P61 C996 Cork, Ireland; (J.B.M.); (T.F.O.); (M.A.F.)
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15
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McHugh AJ, Feehily C, Fenelon MA, Gleeson D, Hill C, Cotter PD. Tracking the Dairy Microbiota from Farm Bulk Tank to Skimmed Milk Powder. mSystems 2020; 5:e00226-20. [PMID: 32265313 PMCID: PMC7141888 DOI: 10.1128/msystems.00226-20] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Accepted: 03/17/2020] [Indexed: 11/20/2022] Open
Abstract
Microorganisms from the environment can enter the dairy supply chain at multiple stages, including production, milk collection, and processing, with potential implications for quality and safety. The ability to track these microorganisms can be greatly enhanced by the use of high-throughput DNA sequencing (HTS). Here HTS, both 16S rRNA gene amplicon and shotgun metagenomic sequencing were applied to investigate the microbiomes of fresh mid- and late-lactation milk collected from farm bulk tanks, collection tankers, milk silos, skimmed milk silos, a cream silo, and powder samples to investigate the microbial changes throughout a skim milk powder manufacturing process. 16S rRNA gene analysis established that the microbiota of raw milks from farm bulk tanks and in collection tankers were very diverse but that psychrotrophic genera associated with spoilage, Pseudomonas and Acinetobacter, were present in all samples. Upon storage within the whole-milk silo at the processing facility, the species Pseudomonas fluorescens and Acinetobacter baumannii became dominant. The skimmed milk powder generated during the mid-lactation period had a microbial composition that was very different from that of raw milk; specifically, two thermophilic genera, Thermus and Geobacillus, were enriched. In contrast, the microbiota of skimmed milk powder generated from late-lactation milk more closely resembled that of the raw milk and was dominated by spoilage-associated psychrotrophic bacteria. This study demonstrates that the dairy microbiota can differ significantly across different sampling days. More specifically, HTS can be used to trace microbial species from raw milks through processing to final powdered products.IMPORTANCE Microorganisms can enter and persist in dairy at several stages of the processing chain. Detection of microorganisms within dairy food processing is currently a time-consuming and often inaccurate process. This study provides evidence that high-throughput sequencing can be used as an effective tool to accurately identify microorganisms along the processing chain. In addition, it demonstrates that the populations of microbes change from raw milk to the end product. Routine implementation of high-throughput sequencing would elucidate the factors that influence population dynamics. This will enable a manufacturer to adopt control measures specific to each stage of processing and respond in an effective manner, which would ultimately lead to increased food safety and quality.
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Affiliation(s)
- Aoife J McHugh
- Food Bioscience Department, Teagasc Food Research Centre, Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
| | - Conor Feehily
- Food Bioscience Department, Teagasc Food Research Centre, Cork, Ireland
- APC Microbiome Ireland, Cork, Ireland
| | - Mark A Fenelon
- Food Chemistry and Technology Department, Teagasc Food Research Centre, Cork, Ireland
| | - David Gleeson
- Teagasc Animal and Grassland Research and Innovation Centre, Cork, Ireland
| | - Colin Hill
- School of Microbiology, University College Cork, Cork, Ireland
- APC Microbiome Ireland, Cork, Ireland
| | - Paul D Cotter
- Food Bioscience Department, Teagasc Food Research Centre, Cork, Ireland
- APC Microbiome Ireland, Cork, Ireland
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16
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Power OM, Maidannyk V, McSweeney DJ, Fenelon MA, O'Mahony JA, McCarthy NA. Water sorption and hydration properties of high protein milk powders are influenced by enzymatic crosslinking and calcium chelation. POWDER TECHNOL 2020. [DOI: 10.1016/j.powtec.2020.01.075] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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17
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Murphy EG, Regost NE, Roos YH, Fenelon MA. Powder and Reconstituted Properties of Commercial Infant and Follow-On Formulas. Foods 2020; 9:foods9010084. [PMID: 31941012 PMCID: PMC7022832 DOI: 10.3390/foods9010084] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 12/18/2019] [Accepted: 12/19/2019] [Indexed: 11/16/2022] Open
Abstract
The physical properties of 15 commercially available infant formulas (IF) and follow-on (FO) formulas were analysed. Powders made with intact milk proteins were classified into two groups; Type I—homogenous mixtures of milk powder particles (n = 6); and Type II—heterogeneous mixtures of milk powder particles and tomahawk-shaped α-lactose monohydrate crystals (n = 6). Powders made using hydrolysed proteins were classified as Type III powders (n = 3). Type II powders exhibited similar flow characteristics to Type I powders despite having significantly (p < 0.05) smaller particle size, lower circularity, and greater elongation. Type III powders exhibited lowest particles size, highest surface free fat, and poorest flow properties (p < 0.05 for all). Upon reconstitution of powders (12.5% w/w), no significant difference (p < 0.05) in apparent viscosity was observed between Type I and II powders. Reconstituted Type III powders had relatively poor stability to separation compared to Type I and II powders, caused by large starch granules and/or poor emulsification by hydrolysed proteins. Overall, this study illustrated the range of physical behaviour and structures present in commercial IF powders. In particular, the effect of dry addition of lactose and the hydrolysis of protein were found to have major effects on physical properties.
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Affiliation(s)
- Eoin G. Murphy
- Teagasc Food Research Centre, Moorepark, P61 C996 Cork, Ireland
- Correspondence: (E.G.M.); (M.A.F.); Tel.: +353-76-111-2525 (E.G.M.); +353-25-42-355 (M.A.F.)
| | - Nicolas E. Regost
- Europe/North America Product Development & Global Research, H&H Group, 14 Rue du Vieux Faubourg, 59042 Lille, France
| | - Yrjö H. Roos
- School of Food and Nutritional Sciences, University College Cork, T12 K8AF Cork, Ireland
| | - Mark A. Fenelon
- Teagasc Food Research Centre, Moorepark, P61 C996 Cork, Ireland
- Correspondence: (E.G.M.); (M.A.F.); Tel.: +353-76-111-2525 (E.G.M.); +353-25-42-355 (M.A.F.)
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Magan JB, O’Callaghan TF, Zheng J, Zhang L, Mandal R, Hennessy D, Fenelon MA, Wishart DS, Kelly AL, McCarthy NA. Impact of Bovine Diet on Metabolomic Profile of Skim Milk and Whey Protein Ingredients. Metabolites 2019; 9:metabo9120305. [PMID: 31861081 PMCID: PMC6950411 DOI: 10.3390/metabo9120305] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 12/13/2019] [Accepted: 12/14/2019] [Indexed: 02/07/2023] Open
Abstract
The influence of bovine diet on the metabolome of reconstituted skim milk powder (SMP) and protein ingredients produced from the milk of cows fed on pasture or concentrate-based diets was investigated. Cows were randomly assigned to diets consisting of perennial ryegrass only (GRS), perennial ryegrass/white clover sward (CLV), or indoor total mixed ration (TMR) for an entire lactation. Raw milk obtained from each group was processed at pilot scale, to produce SMP and sweet whey, and SMP was further processed at laboratory scale, to yield ideal whey and acid whey. The total amino acid composition and metabolome of each sample were analyzed, using high-performance cation exchange and a targeted combination of direct-injection mass spectrometry and reverse-phase liquid chromatography–tandem mass spectrometry (LC–MS/MS), respectively. The nitrogen composition of the products from each of the diets was similar, with one exception being the significantly higher nonprotein nitrogen content in TMR-derived skim milk powder than that from the GRS system. Total amino acid analysis showed significantly higher concentrations of glycine in GRS- and CLV-derived sweet whey and acid whey than in those from TMR. The cysteine contents of CLV-derived ideal whey and acid whey were significantly higher than for TMR, while the valine content of GRS-derived acid whey was significantly higher than TMR. The phenylalanine content of GRS-derived ideal whey was significantly higher than that from CLV. Metabolomic analysis showed significantly higher concentrations of the metabolites glutamine, valine, and phosphocreatine in each ingredient type derived from TMR than those from GRS or CLV, while the serine content of each GRS-derived ingredient type was significantly higher than that in TMR-derived ingredients. These results demonstrate that the type of bovine feeding system used can have a significant effect on the amino acid composition and metabolome of skim milk and whey powders and may aid in the selection of raw materials for product manufacture, while the clear separation between the samples gives further evidence for distinguishing milk products produced from different feeding systems based on LC–MS/MS.
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Affiliation(s)
- Jonathan B. Magan
- Food Chemistry & Technology Department, Teagasc Food Research Centre, Moorepark, Fermoy, P61 C996 Cork, Ireland; (J.B.M.); (T.F.O.); (M.A.F.)
- School of Food and Nutritional Sciences, University College Cork, T12 YT20 Cork, Ireland;
| | - Tom F. O’Callaghan
- Food Chemistry & Technology Department, Teagasc Food Research Centre, Moorepark, Fermoy, P61 C996 Cork, Ireland; (J.B.M.); (T.F.O.); (M.A.F.)
| | - Jiamin Zheng
- The Metabolomics Innovation Centre, School of Biological Sciences, University of Alberta, Edmonton, AB T6G1C9, Canada; (J.Z.); (L.Z.); (R.M.); (D.S.W.)
| | - Lun Zhang
- The Metabolomics Innovation Centre, School of Biological Sciences, University of Alberta, Edmonton, AB T6G1C9, Canada; (J.Z.); (L.Z.); (R.M.); (D.S.W.)
| | - Rupasri Mandal
- The Metabolomics Innovation Centre, School of Biological Sciences, University of Alberta, Edmonton, AB T6G1C9, Canada; (J.Z.); (L.Z.); (R.M.); (D.S.W.)
| | - Deirdre Hennessy
- Teagasc Animal and Grassland Research & Innovation Centre, Moorepark, Fermoy, P61 C996 Cork, Ireland;
| | - Mark A. Fenelon
- Food Chemistry & Technology Department, Teagasc Food Research Centre, Moorepark, Fermoy, P61 C996 Cork, Ireland; (J.B.M.); (T.F.O.); (M.A.F.)
| | - David S. Wishart
- The Metabolomics Innovation Centre, School of Biological Sciences, University of Alberta, Edmonton, AB T6G1C9, Canada; (J.Z.); (L.Z.); (R.M.); (D.S.W.)
| | - Alan L. Kelly
- School of Food and Nutritional Sciences, University College Cork, T12 YT20 Cork, Ireland;
| | - Noel A. McCarthy
- Food Chemistry & Technology Department, Teagasc Food Research Centre, Moorepark, Fermoy, P61 C996 Cork, Ireland; (J.B.M.); (T.F.O.); (M.A.F.)
- Correspondence: ; Tel.: +353-(0)25-42202
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19
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Magan JB, Tobin JT, O'Callaghan TF, Kelly AL, Fenelon MA, Hennessy D, McCarthy NA. Physicochemical properties of whole milk powder derived from cows fed pasture or total mixed ration diets. J Dairy Sci 2019; 102:9611-9621. [PMID: 31447155 DOI: 10.3168/jds.2019-16415] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 07/02/2019] [Indexed: 11/19/2022]
Abstract
This study examined the effect of dietary factors on compositional and functional properties of whole milk powder (WMP) produced from bovine milk. Raw milk samples were obtained from 3 groups of 18 Holstein Friesian spring-calving cows randomly assigned to diets based on perennial ryegrass (GRS), perennial ryegrass/white clover sward (CLV), and total mixed ration (TMR). Raw milks obtained in late lactation were subsequently standardized for fat, heat-treated (90°C for 30 s), evaporated, and homogenized before spray drying. The WMP produced from each diet were analyzed to determine differences in color, particle size distribution, heat coagulation time, yogurt gelation, texture profile, and protein profile due to each diet. Significant differences in heat coagulation time were observed between the CLV and TMR samples, whereas color values were significantly different between GRS and TMR samples. No significant differences in gross composition, protein profile, or whey protein nitrogen index were found between the 3 WMP samples. Average D90 values (the particle size at which 90% of the particles were smaller than the specified size) for fat globules were significantly lower in the TMR sample compared with the GRS and CLV samples. Yogurts produced from GRS- and CLV-derived WMP had significantly higher elastic moduli (G') than those produced from TMR-derived WMP. Similarly, texture profile analysis revealed significantly higher firmness values in yogurt samples derived from CLV compared with TMR samples. Our data characterize the effect of these diets on the composition and functional properties of fat-standardized WMP, suggesting better yogurt functionality and thermal stability in WMP derived from pasture-based bovine diets.
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Affiliation(s)
- Jonathan B Magan
- Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland, P61 C996; School of Food and Nutritional Sciences, University College Cork, Cork, Co. Cork, Ireland, T12 YN60
| | - John T Tobin
- Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland, P61 C996
| | - Tom F O'Callaghan
- Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland, P61 C996
| | - Alan L Kelly
- School of Food and Nutritional Sciences, University College Cork, Cork, Co. Cork, Ireland, T12 YN60
| | - Mark A Fenelon
- Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland, P61 C996
| | - Deirdre Hennessy
- Teagasc, Animal and Grassland Research and Innovation Centre, Moorepark, Fermoy, Co. Cork, Ireland, P61 P302
| | - Noel A McCarthy
- Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland, P61 C996.
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20
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Alothman M, Hogan SA, Hennessy D, Dillon P, Kilcawley KN, O'Donovan M, Tobin J, Fenelon MA, O'Callaghan TF. The "Grass-Fed" Milk Story: Understanding the Impact of Pasture Feeding on the Composition and Quality of Bovine Milk. Foods 2019; 8:E350. [PMID: 31426489 PMCID: PMC6723057 DOI: 10.3390/foods8080350] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 08/09/2019] [Accepted: 08/12/2019] [Indexed: 02/07/2023] Open
Abstract
Milk is a highly nutritious food that contains an array of macro and micro components, scientifically proven to be beneficial to human health. While the composition of milk is influenced by a variety of factors, such as genetics, health, lactation stage etc., the animal's diet remains a key mechanism by which its nutrition and processing characteristics can be altered. Pasture feeding has been demonstrated to have a positive impact on the nutrient profile of milk, increasing the content of some beneficial nutrients such as Omega-3 polyunsaturated fatty acids, vaccenic acid, and conjugated linoleic acid (CLA), while reducing the levels of Omega-6 fatty acids and palmitic acid. These resultant alterations to the nutritional profile of "Grass-Fed" milk resonate with consumers that desire healthy, "natural", and sustainable dairy products. This review provides a comprehensive comparison of the impact that pasture and non-pasture feeding systems have on bovine milk composition from a nutritional and functional (processability) perspective, highlighting factors that will be of interest to dairy farmers, processors, and consumers.
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Affiliation(s)
- Mohammad Alothman
- Department of Food Chemistry & Technology, Teagasc Food Research Center, Moorepark, Fermoy, P61 C996 Cork, Ireland
| | - Sean A Hogan
- Department of Food Chemistry & Technology, Teagasc Food Research Center, Moorepark, Fermoy, P61 C996 Cork, Ireland
| | - Deirdre Hennessy
- Teagasc, Animal & Grassland Research and Innovation Centre, Moorepark, Fermoy, P61 C996 Cork, Ireland
| | - Pat Dillon
- Teagasc, Animal & Grassland Research and Innovation Centre, Moorepark, Fermoy, P61 C996 Cork, Ireland
| | - Kieran N Kilcawley
- Department of Food Quality & Sensory Science, Teagasc Food Research Center, Moorepark, Fermoy, P61 C996 Cork, Ireland
| | - Michael O'Donovan
- Teagasc, Animal & Grassland Research and Innovation Centre, Moorepark, Fermoy, P61 C996 Cork, Ireland
| | - John Tobin
- Department of Food Chemistry & Technology, Teagasc Food Research Center, Moorepark, Fermoy, P61 C996 Cork, Ireland
| | - Mark A Fenelon
- Department of Food Chemistry & Technology, Teagasc Food Research Center, Moorepark, Fermoy, P61 C996 Cork, Ireland
| | - Tom F O'Callaghan
- Department of Food Chemistry & Technology, Teagasc Food Research Center, Moorepark, Fermoy, P61 C996 Cork, Ireland.
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21
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Gulati A, Hennessy D, O'Donovan M, McManus JJ, Fenelon MA, Guinee TP. Dairy cow feeding system alters the characteristics of low-heat skim milk powder and processability of reconstituted skim milk. J Dairy Sci 2019; 102:8630-8647. [PMID: 31378501 DOI: 10.3168/jds.2018-15884] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 05/28/2019] [Indexed: 12/19/2022]
Abstract
Low-heat skim milk powder (LHSMP) was manufactured on 3 separate occasions in mid lactation (ML, July 4-20) and late lactation (LL, September 27 to October 7) from bulk milk of 3 spring-calving dairy herds on different feeding systems: grazing on perennial ryegrass (Lolium perenne L.) pasture (GRO), grazing on perennial ryegrass and white clover (Trifolium repens L.) pasture (GRC), and housed indoors and offered total mixed ration (TMR). The resultant powders (GRO-SMP, GRC-SMP, and TMR-SMP) were evaluated for composition and color and for the compositional, physicochemical, and processing characteristics of the reconstituted skim milk (RSM) prepared by dispersing the powders to 10% (wt/wt) in water. Feeding system significantly affected the contents of protein and lactose, the elemental composition, and the color of the LHSMP, as well as the rennet gelation properties of the RSM. The GRO and GRC powders had a higher protein content; lower levels of lactose, iodine, and selenium; and a more yellow-green color (lower a* and higher b* color coordinates) than TMR powder. On reconstitution, the GRO-RSM had higher concentrations of protein, casein, and ionic calcium, and lower concentrations of lactose and nonprotein nitrogen (% of total N). It also produced rennet gels with a higher storage modulus (G') than the corresponding TMR-RSM. These effects were observed over the combined ML and LL period but varied somewhat during the separate ML and LL periods. Otherwise, feeding system had little or no effect on proportions of individual caseins, concentration of serum casein, casein micelle size, casein hydration, heat coagulation time, or ethanol stability of the RSM at pH 6.2 to 7.2, or on the water-holding capacity, viscosity, and flow behavior of stirred yogurt prepared by starter-induced acidification of RSM. The differences in the functionality of the LHSMP may be of greater or lesser importance depending on the application and the conditions applied during the processing of the RSM.
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Affiliation(s)
- Arunima Gulati
- Teagasc Food Research Centre Moorepark, Fermoy, Co. Cork, P61 C996, Ireland; Department of Chemistry, Maynooth University, Maynooth, Co. Kildare, Ireland
| | - Deirdre Hennessy
- Teagasc, Animal & Grassland Research and Innovation Centre, Moorepark, Fermoy, Co. Cork, P61 C996, Ireland
| | - Michael O'Donovan
- Teagasc, Animal & Grassland Research and Innovation Centre, Moorepark, Fermoy, Co. Cork, P61 C996, Ireland
| | - Jennifer J McManus
- Department of Chemistry, Maynooth University, Maynooth, Co. Kildare, Ireland
| | - Mark A Fenelon
- Teagasc Food Research Centre Moorepark, Fermoy, Co. Cork, P61 C996, Ireland
| | - Timothy P Guinee
- Teagasc Food Research Centre Moorepark, Fermoy, Co. Cork, P61 C996, Ireland.
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22
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Panthi RR, Sundekilde UK, Kelly AL, Hennessy D, Kilcawley KN, Mannion DT, Fenelon MA, Sheehan JJ. Influence of herd diet on the metabolome of Maasdam cheeses. Food Res Int 2019; 123:722-731. [PMID: 31285022 DOI: 10.1016/j.foodres.2019.05.026] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 05/09/2019] [Accepted: 05/16/2019] [Indexed: 11/19/2022]
Abstract
The untargeted metabolic profiles of ripened Maasdam cheese samples prepared from milk derived from three herd groups, fed: (1) indoors on total mixed ration (TMR), or outdoors on (2) grass only pasture (GRA) or (3) grass and white clover pasture (CLO) were studied using high resolution nuclear magnetic resonance (1H NMR), high resolution magic angle spinning nuclear magnetic resonance (1H HRMAS NMR) and headspace (HS) gas chromatography mass spectrometry (GC-MS). A total of 31 compounds were identified using 1H NMR and 32 volatile compounds including 7 acids, 5 esters, 4 alcohols, 4 ketones, 4 sulfur compounds, 2 aldehydes, 3 hydrocarbons, 2 terpenes and a lactone were identified using GC-MS in Maasdam cheeses ripened for 97-d. On comparing the 1H NMR metabolic profiles, TMR-derived cheese had higher levels of citrate compared to GRA-derived cheese. The toluene content of cheese was significantly higher in GRA or CLO compared to TMR cheeses and dimethyl sulfide was identified only in CLO-derived cheese samples as detected using HS GC-MS. These compounds are proposed as indicator compounds for Maasdam cheese derived from pasture-fed milk. Clear differences between outdoor or indoor feeding systems in terms of cheese metabolites were detected in the lipid phase, as indicated by principal component analysis (PCA) from 1H HRMAS NMR spectra, although differences based on PCA of all 1H NMR spectra and HS-GC-MS were less clear. Overall, this study presented the metabolite profile and identified specific compounds which may be useful for discriminating between ripened Maasdam cheese and related cheese varieties manufactured from indoor or outdoor herd-feeding systems.
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Affiliation(s)
- Ram R Panthi
- Teagasc Food Research Centre Moorepark, Fermoy Co. Cork P61C996, Ireland; School of Food and Nutritional Sciences, University College Cork, Cork T12YN60, Ireland.
| | - Ulrik K Sundekilde
- Department of Food Science, Faculty of Science and Technology, Aarhus University, Kirstinebjergvej, Årslev DK-5792, Denmark.
| | - Alan L Kelly
- School of Food and Nutritional Sciences, University College Cork, Cork T12YN60, Ireland.
| | - Deirdre Hennessy
- Teagasc Food Research Centre Moorepark, Fermoy Co. Cork P61C996, Ireland.
| | - Kieran N Kilcawley
- Teagasc Food Research Centre Moorepark, Fermoy Co. Cork P61C996, Ireland.
| | - David T Mannion
- Teagasc Food Research Centre Moorepark, Fermoy Co. Cork P61C996, Ireland.
| | - Mark A Fenelon
- Teagasc Food Research Centre Moorepark, Fermoy Co. Cork P61C996, Ireland.
| | - Jeremiah J Sheehan
- Teagasc Food Research Centre Moorepark, Fermoy Co. Cork P61C996, Ireland.
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23
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Gulati A, Galvin N, Kennedy E, Lewis E, McManus JJ, Fenelon MA, Guinee TP. Effect of reducing daily herbage allowance during early lactation on composition and processing characteristics of milk from spring-calved herds. Int Dairy J 2019. [DOI: 10.1016/j.idairyj.2019.01.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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24
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Panthi RR, Kelly AL, Hennessy D, O'Sullivan MG, Kilcawley KN, Mannion DT, Fenelon MA, Sheehan JJ. Effect of pasture versus indoor feeding regimes on the yield, composition, ripening and sensory characteristics of Maasdam cheese. INT J DAIRY TECHNOL 2019. [DOI: 10.1111/1471-0307.12590] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Ram R Panthi
- Teagasc Food Research Centre Moorepark Fermoy P61C966 Co. CorkIreland
- School of Food and Nutritional Sciences University College Cork T12YN60 Cork Ireland
| | - Alan L Kelly
- School of Food and Nutritional Sciences University College Cork T12YN60 Cork Ireland
| | - Deirdre Hennessy
- Teagasc, Animal and Grassland Research and Innovation Centre Moorepark Fermoy P61C966 Co. Cork Ireland
| | - Maurice G O'Sullivan
- School of Food and Nutritional Sciences University College Cork T12YN60 Cork Ireland
| | | | - David T Mannion
- Teagasc Food Research Centre Moorepark Fermoy P61C966 Co. CorkIreland
| | - Mark A Fenelon
- Teagasc Food Research Centre Moorepark Fermoy P61C966 Co. CorkIreland
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25
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Power OM, Fenelon MA, O'Mahony JA, McCarthy NA. Dephosphorylation of caseins in milk protein concentrate alters their interactions with sodium hexametaphosphate. Food Chem 2019; 271:136-141. [DOI: 10.1016/j.foodchem.2018.07.086] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 07/10/2018] [Accepted: 07/12/2018] [Indexed: 11/26/2022]
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26
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Oliveira D, Puri R, Fenelon MA, O'Mahony JA. Delactosed permeate as a dairy processing co‐product with major potential value: a review. Int J Food Sci Technol 2018. [DOI: 10.1111/ijfs.14064] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Diana Oliveira
- School of Food and Nutritional Sciences University College Cork Room 234, Food Science Building Cork Ireland
- Dairy Processing Technology Centre University College Cork Room 234, Food Science Building Cork Ireland
| | - Ritika Puri
- School of Food and Nutritional Sciences University College Cork Room 234, Food Science Building Cork Ireland
- Dairy Processing Technology Centre University College Cork Room 234, Food Science Building Cork Ireland
| | - Mark A. Fenelon
- Food Chemistry and Technology Department Teagasc Food Research Centre Moorepark, Fermoy, Co. Cork P61 C996 Ireland
| | - James A. O'Mahony
- School of Food and Nutritional Sciences University College Cork Room 234, Food Science Building Cork Ireland
- Dairy Processing Technology Centre University College Cork Room 234, Food Science Building Cork Ireland
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27
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Buggy AK, McManus JJ, Brodkorb A, Hogan SA, Fenelon MA. Pilot-scale formation of whey protein aggregates determine the stability of heat-treated whey protein solutions—Effect of pH and protein concentration. J Dairy Sci 2018; 101:10819-10830. [DOI: 10.3168/jds.2017-14177] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Accepted: 07/10/2018] [Indexed: 11/19/2022]
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28
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McCarthy WP, O'Callaghan TF, Danahar M, Gleeson D, O'Connor C, Fenelon MA, Tobin JT. Chlorate and Other Oxychlorine Contaminants Within the Dairy Supply Chain. Compr Rev Food Sci Food Saf 2018; 17:1561-1575. [DOI: 10.1111/1541-4337.12393] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2018] [Revised: 08/24/2018] [Accepted: 08/27/2018] [Indexed: 11/27/2022]
Affiliation(s)
- William P. McCarthy
- Food Chemistry & Technology Dept.; Teagasc Food Research Centre, Moorepark; Fermoy, Co. Cork Cork Ireland
- Dublin Inst. of Technology; Cathal Brugha Street, Dublin 1 Dublin Ireland
| | - Tom F. O'Callaghan
- Food Chemistry & Technology Dept.; Teagasc Food Research Centre, Moorepark; Fermoy, Co. Cork Cork Ireland
| | - Martin Danahar
- Food Safety Dept.; Ashtown Food Research Centre; Teagasc, Ashtown, Dublin 15 Dublin Ireland
| | - David Gleeson
- Teagasc; Animal & Grassland Research and Innovation Centre, Moorepark; Fermoy Co. Cork, Cork Ireland
| | - Christine O'Connor
- Dublin Inst. of Technology; Cathal Brugha Street, Dublin 1 Dublin Ireland
| | - Mark A. Fenelon
- Food Chemistry & Technology Dept.; Teagasc Food Research Centre, Moorepark; Fermoy, Co. Cork Cork Ireland
| | - John T. Tobin
- Food Chemistry & Technology Dept.; Teagasc Food Research Centre, Moorepark; Fermoy, Co. Cork Cork Ireland
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29
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Ho QT, Murphy KM, Drapala KP, O'Callaghan TF, Fenelon MA, O'Mahony JA, McCarthy NA. Effect of pH and heat treatment on viscosity and heat coagulation properties of milk protein concentrate. Int Dairy J 2018. [DOI: 10.1016/j.idairyj.2018.05.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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30
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Gulati A, Galvin N, Hennessy D, McAuliffe S, O'Donovan M, McManus JJ, Fenelon MA, Guinee TP. Grazing of dairy cows on pasture versus indoor feeding on total mixed ration: Effects on low-moisture part-skim Mozzarella cheese yield and quality characteristics in mid and late lactation. J Dairy Sci 2018; 101:8737-8756. [DOI: 10.3168/jds.2018-14566] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 06/25/2018] [Indexed: 12/17/2022]
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31
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Crowley SV, Burlot E, Silva JV, McCarthy NA, Wijayanti HB, Fenelon MA, Kelly AL, O'Mahony JA. Rehydration behaviour of spray-dried micellar casein concentrates produced using microfiltration of skim milk at cold or warm temperatures. Int Dairy J 2018. [DOI: 10.1016/j.idairyj.2018.01.005] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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32
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Murphy KM, Ho QT, Drapala KP, Keena GM, Fenelon MA, O'Mahony JA, McCarthy NA. Influence of protein standardisation media and heat treatment on viscosity and related physicochemical properties of skim milk concentrate. Int Dairy J 2018. [DOI: 10.1016/j.idairyj.2018.01.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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33
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Gulati A, Galvin N, Lewis E, Hennessy D, O'Donovan M, McManus JJ, Fenelon MA, Guinee TP. Outdoor grazing of dairy cows on pasture versus indoor feeding on total mixed ration: Effects on gross composition and mineral content of milk during lactation. J Dairy Sci 2018; 101:2710-2723. [DOI: 10.3168/jds.2017-13338] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Accepted: 08/15/2017] [Indexed: 11/19/2022]
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34
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McCarthy NA, Wijayanti HB, Crowley SV, O'Mahony JA, Fenelon MA. Pilot-scale ceramic membrane filtration of skim milk for the production of a protein base ingredient for use in infant milk formula. Int Dairy J 2017. [DOI: 10.1016/j.idairyj.2017.04.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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35
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McDermott A, De Marchi M, Berry DP, Visentin G, Fenelon MA, Lopez-Villalobos N, McParland S. Cow and environmental factors associated with protein fractions and free amino acids predicted using mid-infrared spectroscopy in bovine milk. J Dairy Sci 2017. [PMID: 28624276 DOI: 10.3168/jds.2016-12410] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The objective of the present study was to identify the factors associated with both the protein composition and free amino acid (FAA) composition of bovine milk predicted using mid-infrared spectroscopy. Milk samples were available from 7 research herds and 69 commercial herds. The spectral data from the research herds comprised 94,286 separate morning and evening milk samples; the spectral data from the commercial herds comprised 40,260 milk samples representing a composite sample of both the morning and evening milkings. Mid-infrared spectroscopy prediction models developed in a previous study were applied to all spectra. Factors associated with the predicted protein and FAA composition were quantified using linear mixed models. Factors considered in the model included the fixed effects of calendar month of the test, milking time (i.e., morning, evening, or both combined), parity (1, 2, 3, 4, 5, and ≥6), stage of lactation, the interaction between parity and stage of lactation, breed proportion of the cow (Friesian, Jersey, Norwegian Red, Montbéliarde, and other), and both the general heterosis and recombination coefficients of the cow. Contemporary group as well as both within- and across-lactation permanent environmental effects were included in all models as random effects. Total proteins (i.e., total casein, CN; total whey; and total β-lactoglobulin) and protein fractions (with the exception of α-lactalbumin) decreased postcalving until 36 to 65 days in milk and increased thereafter. After adjusting the statistical model for differences in crude protein content and milk yield separately, irrespective of stage of lactation, younger animals produced more total proteins (i.e., total CN, total whey, and total β-lactoglobulin) as well as more total FAA, Glu, and Asp than their older contemporaries. The concentration of all protein fractions (except β-CN) in milk was greatest in the evening milk, even after adjusting for differences in the crude protein content of the milk. Relative to a purebred Holstein cow, Jersey cows, on average, produced a greater concentration of all CN fractions but less total FAA, Glu, Gly, Asp, and Val in milk. Relative to their respective purebred parental average, first-cross cows produced more total CN and more β-CN. Results from the present study indicate that many cow-level factors, as well as other factors, are associated with protein composition and FAA composition of bovine milk.
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Affiliation(s)
- A McDermott
- Teagasc Animal and Grassland Research and Innovation Centre, Moorepark, Fermoy, Co. Cork, Ireland; Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, Viale dell'Universita 16, 35020 Legnaro (PD), Italy
| | - M De Marchi
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, Viale dell'Universita 16, 35020 Legnaro (PD), Italy
| | - D P Berry
- Teagasc Animal and Grassland Research and Innovation Centre, Moorepark, Fermoy, Co. Cork, Ireland
| | - G Visentin
- Teagasc Animal and Grassland Research and Innovation Centre, Moorepark, Fermoy, Co. Cork, Ireland; Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, Viale dell'Universita 16, 35020 Legnaro (PD), Italy
| | - M A Fenelon
- Teagasc, Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland
| | - N Lopez-Villalobos
- Institute of Veterinary, Animal and Biomedical Sciences, Massey University, Private Bag 11222, Palmerston North 4442, New Zealand
| | - S McParland
- Teagasc Animal and Grassland Research and Innovation Centre, Moorepark, Fermoy, Co. Cork, Ireland.
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McCarthy NA, Power O, Wijayanti HB, Kelly PM, Mao L, Fenelon MA. Effects of calcium chelating agents on the solubility of milk protein concentrate. INT J DAIRY TECHNOL 2017. [DOI: 10.1111/1471-0307.12408] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Noel A McCarthy
- Food Chemistry & Technology Department; Teagasc Food Research Centre; Moorepark, Fermoy, Co. Cork; Cork Ireland
| | - Orla Power
- Food Chemistry & Technology Department; Teagasc Food Research Centre; Moorepark, Fermoy, Co. Cork; Cork Ireland
| | - Heni B Wijayanti
- Food Chemistry & Technology Department; Teagasc Food Research Centre; Moorepark, Fermoy, Co. Cork; Cork Ireland
| | - Philip M Kelly
- Food Chemistry & Technology Department; Teagasc Food Research Centre; Moorepark, Fermoy, Co. Cork; Cork Ireland
| | - Like Mao
- Food Chemistry & Technology Department; Teagasc Food Research Centre; Moorepark, Fermoy, Co. Cork; Cork Ireland
| | - Mark A Fenelon
- Food Chemistry & Technology Department; Teagasc Food Research Centre; Moorepark, Fermoy, Co. Cork; Cork Ireland
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37
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Ji J, Fitzpatrick J, Cronin K, Fenelon MA, Miao S. The effects of fluidised bed and high shear mixer granulation processes on water adsorption and flow properties of milk protein isolate powder. J FOOD ENG 2017. [DOI: 10.1016/j.jfoodeng.2016.07.018] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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38
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Buggy AK, McManus JJ, Brodkorb A, Carthy NM, Fenelon MA. Stabilising effect of α-lactalbumin on concentrated infant milk formula emulsions heat treated pre- or post-homogenisation. ACTA ACUST UNITED AC 2016. [DOI: 10.1007/s13594-016-0306-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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McCarthy NA, Kennedy D, Hogan SA, Kelly PM, Thapa K, Murphy KM, Fenelon MA. Emulsification properties of pea protein isolate using homogenization, microfluidization and ultrasonication. Food Res Int 2016; 89:415-421. [PMID: 28460933 DOI: 10.1016/j.foodres.2016.07.024] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Revised: 07/13/2016] [Accepted: 07/31/2016] [Indexed: 10/21/2022]
Abstract
Pea protein isolate (PPI) is used in many food formulations, due to its low cost, commercial availability and excellent amino acid profile. The objective of this study was to determine the emulsification properties of PPI. Particle size of PPI powders showed neither temperature (25-65°C) nor time (up to 24h) increased solubilisation of powder particles during mixing. Heating PPI dispersions (10%, w/w, protein) from 45 to 90°C led to an increase in storage modulus (G'; Pa) at 71°C, indicating the onset of protein aggregation. Gel formation occurred at 79°C (G'>1Pa). Pea protein-stabilised emulsions made using homogenization (15MPa; 1 pass) or microfluidization (50MPa; 1 pass) resulted in the formation of cold-set gels, with gel strength increasing with increasing oil concentration and fluidic pressure. Droplet size and viscosity of pea protein-stabilised emulsions decreased and increased, respectively, with increasing ultrasonication time. Overall, ultrasonication (<50°C) can create a uniform droplet size emulsion, while, homogenization and microfluidization can produce cold-set gels for use in a wide-range of food applications.
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Affiliation(s)
- Noel A McCarthy
- Food Chemistry & Technology Department, Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland
| | - Deirdre Kennedy
- Food Chemistry & Technology Department, Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland
| | - Sean A Hogan
- Food Chemistry & Technology Department, Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland
| | - Philip M Kelly
- Food Chemistry & Technology Department, Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland
| | - Krishtina Thapa
- Food Chemistry & Technology Department, Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland
| | - Kevin M Murphy
- Food Chemistry & Technology Department, Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland
| | - Mark A Fenelon
- Food Chemistry & Technology Department, Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland.
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Gopal N, Hill C, Ross PR, Beresford TP, Fenelon MA, Cotter PD. The Prevalence and Control of Bacillus and Related Spore-Forming Bacteria in the Dairy Industry. Front Microbiol 2015; 6:1418. [PMID: 26733963 PMCID: PMC4685140 DOI: 10.3389/fmicb.2015.01418] [Citation(s) in RCA: 147] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Accepted: 11/30/2015] [Indexed: 01/14/2023] Open
Abstract
Milk produced in udder cells is sterile but due to its high nutrient content, it can be a good growth substrate for contaminating bacteria. The quality of milk is monitored via somatic cell counts and total bacterial counts, with prescribed regulatory limits to ensure quality and safety. Bacterial contaminants can cause disease, or spoilage of milk and its secondary products. Aerobic spore-forming bacteria, such as those from the genera Sporosarcina, Paenisporosarcina, Brevibacillus, Paenibacillus, Geobacillus and Bacillus, are a particular concern in this regard as they are able to survive industrial pasteurization and form biofilms within pipes and stainless steel equipment. These single or multiple-species biofilms become a reservoir of spoilage microorganisms and a cycle of contamination can be initiated. Indeed, previous studies have highlighted that these microorganisms are highly prevalent in dead ends, corners, cracks, crevices, gaskets, valves and the joints of stainless steel equipment used in the dairy manufacturing plants. Hence, adequate monitoring and control measures are essential to prevent spoilage and ensure consumer safety. Common controlling approaches include specific cleaning-in-place processes, chemical and biological biocides and other novel methods. In this review, we highlight the problems caused by these microorganisms, and discuss issues relating to their prevalence, monitoring thereof and control with respect to the dairy industry.
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Affiliation(s)
- Nidhi Gopal
- Teagasc Food Research CentreCork, Ireland
- School of Microbiology, University College CorkCork, Ireland
| | - Colin Hill
- School of Microbiology, University College CorkCork, Ireland
- APC Microbiome InstituteCork, Ireland
| | - Paul R. Ross
- College of Science, Engineering and Food Science, University College CorkCork, Ireland
| | | | | | - Paul D. Cotter
- Teagasc Food Research CentreCork, Ireland
- APC Microbiome InstituteCork, Ireland
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Visentin G, McDermott A, McParland S, Berry DP, Kenny OA, Brodkorb A, Fenelon MA, De Marchi M. Prediction of bovine milk technological traits from mid-infrared spectroscopy analysis in dairy cows. J Dairy Sci 2015; 98:6620-9. [PMID: 26188572 DOI: 10.3168/jds.2015-9323] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Accepted: 06/09/2015] [Indexed: 11/19/2022]
Abstract
Rapid, cost-effective monitoring of milk technological traits is a significant challenge for dairy industries specialized in cheese manufacturing. The objective of the present study was to investigate the ability of mid-infrared spectroscopy to predict rennet coagulation time, curd-firming time, curd firmness at 30 and 60min after rennet addition, heat coagulation time, casein micelle size, and pH in cow milk samples, and to quantify associations between these milk technological traits and conventional milk quality traits. Samples (n=713) were collected from 605 cows from multiple herds; the samples represented multiple breeds, stages of lactation, parities, and milking times. Reference analyses were undertaken in accordance with standardized methods, and mid-infrared spectra in the range of 900 to 5,000cm(-1) were available for all samples. Prediction models were developed using partial least squares regression, and prediction accuracy was based on both cross and external validation. The proportion of variance explained by the prediction models in external validation was greatest for pH (71%), followed by rennet coagulation time (55%) and milk heat coagulation time (46%). Models to predict curd firmness 60min from rennet addition and casein micelle size, however, were poor, explaining only 25 and 13%, respectively, of the total variance in each trait within external validation. On average, all prediction models tended to be unbiased. The linear regression coefficient of the reference value on the predicted value varied from 0.17 (casein micelle size regression model) to 0.83 (pH regression model) but all differed from 1. The ratio performance deviation of 1.07 (casein micelle size prediction model) to 1.79 (pH prediction model) for all prediction models in the external validation was <2, suggesting that none of the prediction models could be used for analytical purposes. With the exception of casein micelle size and curd firmness at 60min after rennet addition, the developed prediction models may be useful as a screening method, because the concordance correlation coefficient ranged from 0.63 (heat coagulation time prediction model) to 0.84 (pH prediction model) in the external validation.
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Affiliation(s)
- G Visentin
- Animal & Grassland Research and Innovation Center, Teagasc, Moorepark, Fermoy, Co. Cork, Ireland; Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, Viale dell'Università 16, 35020 Legnaro (PD), Italy
| | - A McDermott
- Animal & Grassland Research and Innovation Center, Teagasc, Moorepark, Fermoy, Co. Cork, Ireland; Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, Viale dell'Università 16, 35020 Legnaro (PD), Italy
| | - S McParland
- Animal & Grassland Research and Innovation Center, Teagasc, Moorepark, Fermoy, Co. Cork, Ireland.
| | - D P Berry
- Animal & Grassland Research and Innovation Center, Teagasc, Moorepark, Fermoy, Co. Cork, Ireland
| | - O A Kenny
- Teagasc Food Research Center, Moorepark, Fermoy, Co. Cork, Ireland
| | - A Brodkorb
- Teagasc Food Research Center, Moorepark, Fermoy, Co. Cork, Ireland
| | - M A Fenelon
- Teagasc Food Research Center, Moorepark, Fermoy, Co. Cork, Ireland
| | - M De Marchi
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, Viale dell'Università 16, 35020 Legnaro (PD), Italy
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McCarthy NA, Gee VL, O'Mahony JA, Kelly AL, Fenelon MA. Optimising emulsion stability during processing of model infant formulae using factorial statistical design. INT J DAIRY TECHNOL 2015. [DOI: 10.1111/1471-0307.12240] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Noel A McCarthy
- Food Chemistry & Technology Department; Teagasc Food Research Centre; Moorepark, Fermoy, Co. Cork Ireland
- School of Food and Nutritional Sciences; University College Cork; Cork Ireland
| | - Vivian L Gee
- Food Chemistry & Technology Department; Teagasc Food Research Centre; Moorepark, Fermoy, Co. Cork Ireland
| | - James A O'Mahony
- School of Food and Nutritional Sciences; University College Cork; Cork Ireland
| | - Alan L Kelly
- School of Food and Nutritional Sciences; University College Cork; Cork Ireland
| | - Mark A Fenelon
- Food Chemistry & Technology Department; Teagasc Food Research Centre; Moorepark, Fermoy, Co. Cork Ireland
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43
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Crowley SV, O’Callaghan TF, Kelly AL, Fenelon MA, O’Mahony JA. Use of ultrafiltration to prepare a novel permeate for application in the functionality testing of infant formula ingredients. Sep Purif Technol 2015. [DOI: 10.1016/j.seppur.2014.11.047] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Murphy EG, Fenelon MA, Roos YH, Hogan SA. Decoupling macronutrient interactions during heating of model infant milk formulas. J Agric Food Chem 2014; 62:10585-10593. [PMID: 25251787 DOI: 10.1021/jf503620r] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Understanding macronutrient interactions during heating is important for controlling viscosity during infant milk formula (IMF) manufacture. Thermal behavior of macronutrients (casein, whey, lactose, fat) was studied, in isolation and combination, over a range of concentrations. Addition of phosphocasein to whey protein solutions elevated denaturation temperature (Td) of β-lactoglobulin and the temperature at which viscosity started to increase upon heating (Tv). Secondary structural changes in whey proteins occurred at higher temperatures in dispersions containing phosphocasein; the final extent of viscosity increase was similar to that of whey protein alone. Addition of lactose to whey protein solutions delayed secondary structural changes, increased Td and Tv, and reduced post heat treatment viscosity. This study demonstrated that heat-induced changes in IMF associated with whey protein (denaturation, viscosity) are not only a function of concentration but are also dependent on interactions between macronutrients.
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Affiliation(s)
- Eoin G Murphy
- Food Chemistry and Technology Department, Teagasc Food Research Centre , Moorepark, Fermoy, County Cork, Ireland
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McCarthy NA, Kelly AL, O'Mahony JA, Fenelon MA. Sensitivity of emulsions stabilised by bovine β-casein and lactoferrin to heat and CaCl2. Food Hydrocoll 2014. [DOI: 10.1016/j.foodhyd.2013.06.021] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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48
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McCarthy NA, Kelly AL, O’Mahony JA, Fenelon MA. The physical characteristics and emulsification properties of partially dephosphorylated bovine β-casein. Food Chem 2013; 138:1304-11. [DOI: 10.1016/j.foodchem.2012.11.080] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Revised: 11/09/2012] [Accepted: 11/12/2012] [Indexed: 10/27/2022]
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49
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Kett AP, Chaurin V, Fitzsimons SM, Morris ER, O'Mahony JA, Fenelon MA. Influence of milk proteins on the pasting behaviour and microstructural characteristics of waxy maize starch. Food Hydrocoll 2013. [DOI: 10.1016/j.foodhyd.2012.08.002] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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50
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McCarthy NA, Gee VL, Hickey DK, Kelly AL, O'Mahony JA, Fenelon MA. Effect of protein content on the physical stability and microstructure of a model infant formula. Int Dairy J 2013. [DOI: 10.1016/j.idairyj.2012.10.004] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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