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Alqirsh SM, Magdy N, Abdel-Ghany MF, El Azab NF. A comparative study of green solid contact ion selective electrodes for the potentiometric determination of Letrozole in dosage form and human plasma. Sci Rep 2023; 13:20187. [PMID: 37980444 PMCID: PMC10657372 DOI: 10.1038/s41598-023-47240-3] [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: 09/16/2023] [Accepted: 11/10/2023] [Indexed: 11/20/2023] Open
Abstract
Analysis of drugs clinically and their identification in biological samples are of utmost importance in the process of therapeutic drug monitoring, also in pharmacokinetic investigations and tracking of illicit medications. These investigations are carried out using a variety of analytical methods, including potentiometric electrodes. Potentiometric electrodes are a wonderful solution for researchers because they outperform other methods in terms of sustainability, greenness, and cost effectiveness. In the current study, ion-selective potentiometric sensors were assembled for the aim of quantification of the anticancer drug Letrozole (LTZ). The first step was fabrication of a conventional sensor based on the formation of stable host-guest inclusion complex between the cationic drug and 4-tert-butylcalix-8-arene (TBCAX-8). Two additional sensors were prepared through membrane modification with graphene nanocomposite (GNC) and polyaniline (PANI) nanoparticles. Linear responses of 1.00 × 10-5-1.00 × 10-2, 1.00 × 10-6-1.00 × 10-2 and 1.00 × 10-8-1.00 × 10-3 with sub-Nernstian slopes of 19.90, 20.10 and 20.30 mV/decade were obtained for TBCAX-8, GNC, and PANI sensors; respectively. The developed sensors were successful in determining the drug LTZ in bulk powder and dosage form. PANI modified sensor was used to determine LTZ in human plasma with recoveries ranging from 88.00 to 96.30%. IUPAC recommendations were followed during the evaluation of the electrical performance of the developed sensors. Experimental conditions as temperature and pH were studied and optimized. Analytical Eco-scale and Analytical GREEness metric were adopted as the method greenness assessment tools.
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Affiliation(s)
- Sherin M Alqirsh
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Ain Shams University, Organization of African Unity Street, Abasia, Cairo, 11566, Egypt.
| | - Nancy Magdy
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Ain Shams University, Organization of African Unity Street, Abasia, Cairo, 11566, Egypt
| | - Maha F Abdel-Ghany
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Ain Shams University, Organization of African Unity Street, Abasia, Cairo, 11566, Egypt
| | - Noha F El Azab
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Ain Shams University, Organization of African Unity Street, Abasia, Cairo, 11566, Egypt
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2
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Li S, Saharawat A, Ye A, Dave A, Singh H. Characteristics of Red Deer (Cervus elaphus) Milk: Lactational Changes in Composition and Processing Impacts on Structural and Gelation Properties. Foods 2023; 12:foods12071517. [PMID: 37048339 PMCID: PMC10094629 DOI: 10.3390/foods12071517] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 03/29/2023] [Accepted: 03/30/2023] [Indexed: 04/07/2023] Open
Abstract
In an increasingly diversified global market, milk of minor dairy species has gained interest as a novel and premium source of nutrition. Relative to the major dairy species, much is lacking in our understanding of red deer (Cervus elaphus) milk. In this study, we characterized the compositions (macronutrients, minerals, fatty acids, and proteins) of red deer milk and their variations throughout lactation. We also investigated the structures, physical properties, and gelation (acid- and rennet-induced) properties of deer milk and how they are impacted by typical processing treatments (e.g., homogenization and pasteurization). We identified unique features in the composition of deer milk, including being richer in protein, fat, calcium, zinc, iodine, branched-chain fatty acids, and α-linolenic acid than other ruminant milks. Different deer milk components displayed diverse variation patterns over the lactation cycle, many of which were different from those demonstrated in other ruminant species. Other physicochemical features of deer milk were identified, such as its markedly larger fat globules. Processing treatments were demonstrated to alter the structural and gelation properties of deer milk. Most of the gelation properties of deer milk resembled that of bovine milk more than ovine and caprine milks. This study furthers our understanding of red deer milk and will aid in its processing and applications in novel products.
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Affiliation(s)
- Siqi Li
- Riddet Institute, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
| | - Ashish Saharawat
- 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
| | - 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
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3
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Increase of milk heat stability by addition of casein glycomacropeptide. Int Dairy J 2022. [DOI: 10.1016/j.idairyj.2022.105559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
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4
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Pinheiro JS, Rocha LG, de Andrade DR, Rotta PP, Rezende JP, Pires ACS, Marcondes MI. Unveiling unstable non-acid incidence in Holstein cows fed with corn silage or sugarcane. J Dairy Sci 2022; 105:9226-9239. [PMID: 36175236 DOI: 10.3168/jds.2022-21821] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 06/27/2022] [Indexed: 11/19/2022]
Abstract
We aimed to evaluate the incidence of unstable non-acid milk (UNAM) in cows fed either sugarcane or corn silage. Second, we aimed to evaluate the effect of daily variation (d 1 to 4) and alcohol grades (72, 78, and 80%) on UNAM incidence. The experiment was conducted as a split-plot crossover design, with 2 periods and 2 roughage types (sugarcane or corn silage). Thirteen multiparous Holstein cows with an average of 281 ± 29 d in milk were randomly distributed into 2 diets. Individual blood (analysis of total proteins, albumin, urea, calcium, phosphorus, magnesium, iron, chloride, glucose, and lactate) and milk samples (analysis of protein, fat, lactose and total solids, somatic cell count, and characterization of the protein profile) were collected during the last 4 d of each period. For UNAM identification, the alcohol test was conducted in milk samples at 4°C; specifically, if the sample presented the formation of clots, this would be noted as positive for UNAM. In addition, the Dornic acidity analysis was performed in the same samples to evaluate the true milk acidity. The use of sugarcane and higher degrees of alcohol were associated with increased UNAM. We observed no daily variation in UNAM. Nevertheless, we found no roughage type effect on the variables most commonly associated with UNAM, such as changes in salts in the casein micelle and, consequently, the zeta potential and the κ-casein (CN) fraction. The Pearson correlation analysis showed that the zeta potential and the concentrations of αS2-CN, blood ionic calcium, lactate, and glucose increased as the incidence of UNAM increased, showing a positive correlation among these variables. In contrast, the concentrations of lactose, phosphorus, and potassium decreased as UNAM increased, presenting a negative correlation. This study brought important discoveries to unveil why cows manifest UNAM. For instance, higher alcohol grades and cows fed with sugarcane had increased the incidence of UNAM. Additionally, animals with a higher incidence of UNAM (sugarcane-fed cows) were related to increased ionic calcium and glucose and changes in milk protein profile, with lower levels of BSA, β-CN, and α-lactalbumin and greater αS1-CN content, all of which were correlated with UNAM. Nonetheless, this trial also provides evidence for the need for further studies to better understand the physiological mechanisms that directly affect the stability of milk protein.
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Affiliation(s)
- Jardeson S Pinheiro
- Department of Animal Science, Federal University of Viçosa, Av P.H.Rolfs, sn, Viçosa, MG 36570-900, Brazil
| | - Lethiane G Rocha
- Department of Animal Science, Federal University of Viçosa, Av P.H.Rolfs, sn, Viçosa, MG 36570-900, Brazil
| | - Dhones R de Andrade
- Department of Animal Science, Federal University of Viçosa, Av P.H.Rolfs, sn, Viçosa, MG 36570-900, Brazil
| | - Polyana P Rotta
- Department of Animal Science, Federal University of Viçosa, Av P.H.Rolfs, sn, Viçosa, MG 36570-900, Brazil
| | - Jaqueline P Rezende
- Department of Food Science, Federal University of Lavras, Lavras, MG 37200-000, Brazil
| | - Ana C S Pires
- Applied Molecular Thermodynamics Group, Department of Food Technology, Federal University of Viçosa, Viçosa, MG 36570-900, Brazil
| | - Marcos I Marcondes
- Department of Animal Sciences, Washington State University, Pullman 99164.
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5
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Impact of cheese milk cold storage on milk coagulation properties, calcium contents, and cheese yield. Int Dairy J 2022. [DOI: 10.1016/j.idairyj.2022.105465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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6
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Compositional changes of casein micelles induced by calcium or chelatant addition at threefold and natural casein concentration. Int Dairy J 2022. [DOI: 10.1016/j.idairyj.2022.105365] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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Erdemir S, Kocyigit O, Malkondu S. Optical and quantitative detection of Ca2+ ion by an calix[4]arene-isophorone incorporated fluorometric and colorimetric probe. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2021.113713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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8
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Barone G, O'Regan J, Kelly AL, O'Mahony JA. Interactions between whey proteins and calcium salts and implications for the formulation of dairy protein‐based nutritional beverage products: A review. Compr Rev Food Sci Food Saf 2022; 21:1254-1274. [DOI: 10.1111/1541-4337.12884] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 11/20/2021] [Accepted: 11/30/2021] [Indexed: 01/29/2023]
Affiliation(s)
- Giovanni Barone
- School of Food and Nutritional Sciences University College Cork Cork Ireland
| | - Jonathan O'Regan
- Nestlé Development Centre Nutrition Wyeth Nutritionals Ireland Askeaton Limerick Ireland
| | - Alan L. Kelly
- School of Food and Nutritional Sciences University College Cork Cork Ireland
| | - James A. O'Mahony
- School of Food and Nutritional Sciences University College Cork Cork Ireland
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9
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Bull SP, Khutoryanskiy VV, Parker JK, Faka M, Methven L. Oral retention of thermally denatured whey protein: In vivo measurement and structural observations by CD and NMR. Food Chem 2021; 374:131650. [PMID: 34915364 DOI: 10.1016/j.foodchem.2021.131650] [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: 02/04/2020] [Revised: 11/17/2021] [Accepted: 11/17/2021] [Indexed: 11/04/2022]
Abstract
This study investigated structural changes and the in vivo retention in the oral cavity of heated whey protein concentrate (WPC). Heated WPC was shown to have both a higher retention time in the oral cavity compared to unheated whey protein up to 1 min post swallow, and a concomitant increase in free thiol concentration. Nuclear magnetic resonance and circular dichroism demonstrated structural changes in the secondary and tertiary structures of the WPC upon heating. Structural loss of the β-barrel was shown to increase during heating, leading to the exposure of hydrophobic regions. The increase in free thiols and hydrophobic regions are two factors which are known to increase mucoadhesive strength and hence increase oral retention of heated whey protein which may subsequently increase the perception of mouthdrying.
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Affiliation(s)
- Stephanie P Bull
- Department of Food and Nutritional Sciences, University of Reading, Whiteknights, Reading, Berks RG6 6AD, United Kingdom.
| | - Vitaliy V Khutoryanskiy
- Department of Pharmacy, University of Reading, Whiteknights, Reading, Berks RG6 6AD, United Kingdom.
| | - Jane K Parker
- Department of Food and Nutritional Sciences, University of Reading, Whiteknights, Reading, Berks RG6 6AD, United Kingdom.
| | - Marianthi Faka
- Volac International Ltd, 50 Fishers Lane, Orwell, Royston, Hertfordshire SG8 5QX, United Kingdom.
| | - Lisa Methven
- Department of Food and Nutritional Sciences, University of Reading, Whiteknights, Reading, Berks RG6 6AD, United Kingdom.
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10
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Barone G, Yazdi SR, Lillevang SK, Ahrné L. Calcium: A comprehensive review on quantification, interaction with milk proteins and implications for processing of dairy products. Compr Rev Food Sci Food Saf 2021; 20:5616-5640. [PMID: 34622552 DOI: 10.1111/1541-4337.12844] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 09/01/2021] [Accepted: 09/02/2021] [Indexed: 12/22/2022]
Abstract
Calcium (Ca) is a key micronutrient of high relevance for human nutrition that also influences the texture and taste of dairy products and their processability. In bovine milk, Ca is presented in several speciation forms, such as complexed with other milk components or free as ionic calcium while being distributed between colloidal and serum phases of milk. Partitioning of Ca between these phases is highly dynamic and influenced by factors, such as temperature, ionic strength, pH, and milk composition. Processing steps used during the manufacture of dairy products, such as preconditioning, concentration, acidification, salting, cooling, and heating, all contribute to modify Ca speciation and partition, thereby influencing product functionality, product yield, and fouling of equipment. This review aims to provide a comprehensive understanding of the influence of Ca partition on dairy products properties to support the development of kinetics models to reduce product losses and develop added-value products with improved functionality. To achieve this objective, approaches to separate milk phases, analytical approaches to determine Ca partition and speciation, the role of Ca on protein-protein interactions, and their influence on processing of dairy products are discussed.
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Affiliation(s)
- Giovanni Barone
- Department of Food Science, Ingredients and Dairy Technology, University of Copenhagen, Frederiksberg, Denmark
| | | | | | - Lilia Ahrné
- Department of Food Science, Ingredients and Dairy Technology, University of Copenhagen, Frederiksberg, Denmark
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11
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Costa RG, Freire RMB, de Araújo GGL, Queiroga RDCRDE, Paiva GN, Ribeiro NL, de Oliveira RL, Domínguez R, Lorenzo JM. Effect of Increased Salt Water Intake on the Production and Composition of Dairy Goat Milk. Animals (Basel) 2021; 11:ani11092642. [PMID: 34573608 PMCID: PMC8468390 DOI: 10.3390/ani11092642] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 09/07/2021] [Accepted: 09/08/2021] [Indexed: 11/16/2022] Open
Abstract
Due to its necessity and magnitude, water is essential for animal nutrition. This study aimed to evaluate the effects of increasing levels of water salinity on the quality of goat milk in the Brazilian semiarid region. Twenty-four multiparous Alpine goats, with an average live weight of 38.0 ± 4.0 kg and an average lactation period of 30 days, distributed entirely at random, were used. The experiment lasted 64 days including an initial period of 14 days of adaption to the diet. The experimental treatments consisted of water with different levels of total dissolved solids (TDS): 640, 3188, 5740, and 8326 mg L-1, obtained using sodium chloride (NaCl). Increasing the levels of TDS in drinking water from 640 to 8326 mg L-1 did not significantly (p > 0.05) affect the production and the physicochemical composition of the milk. There was a linear increase (p < 0.05) in the water consumption and acidity variables as a function of the total dissolved solid levels. The mineral composition of the milk was not altered with increasing levels of TDS in water from 640 to 8326 mg L-1. There was no negative effect (p > 0.05) for any of the sensorial attributes analyzed in relation to the treatments. Therefore, as a general conclusion, based on the analyses carried out in this experiment, it was found that water with total dissolved solids, when supplied for short periods of up to 48 days, does not alter the production, physicochemical characteristics, or the organoleptic properties of goat's milk.
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Affiliation(s)
- Roberto Germano Costa
- Programa de Doutorado Integrado em Zootecnia, Universidade Federal da Paraíba (UFPB), Areia 58397-000, Brazil; (R.G.C.); (R.M.B.F.); (G.G.L.d.A.); (R.d.C.R.d.E.Q.); (G.N.P.)
| | - Rayssa M. Bezerril Freire
- Programa de Doutorado Integrado em Zootecnia, Universidade Federal da Paraíba (UFPB), Areia 58397-000, Brazil; (R.G.C.); (R.M.B.F.); (G.G.L.d.A.); (R.d.C.R.d.E.Q.); (G.N.P.)
| | - Gherman Garcia Leal de Araújo
- Programa de Doutorado Integrado em Zootecnia, Universidade Federal da Paraíba (UFPB), Areia 58397-000, Brazil; (R.G.C.); (R.M.B.F.); (G.G.L.d.A.); (R.d.C.R.d.E.Q.); (G.N.P.)
| | - Rita de Cássia Ramos do Egypto Queiroga
- Programa de Doutorado Integrado em Zootecnia, Universidade Federal da Paraíba (UFPB), Areia 58397-000, Brazil; (R.G.C.); (R.M.B.F.); (G.G.L.d.A.); (R.d.C.R.d.E.Q.); (G.N.P.)
| | - Gutemberg Nascimento Paiva
- Programa de Doutorado Integrado em Zootecnia, Universidade Federal da Paraíba (UFPB), Areia 58397-000, Brazil; (R.G.C.); (R.M.B.F.); (G.G.L.d.A.); (R.d.C.R.d.E.Q.); (G.N.P.)
| | - Neila Lidiany Ribeiro
- Bolsista PCI/CNPq, Instituto Nacional do Semiárido—INSA, Campina Grande 58434-700, Brazil;
| | | | - Rubén Domínguez
- Centro Tecnológico de la Carne de Galicia, Rúa Galicia Nº 4, Parque Tecnológico de Galicia, San Cibrao das Viñas, 32900 Ourense, Spain;
| | - José M. Lorenzo
- Centro Tecnológico de la Carne de Galicia, Rúa Galicia Nº 4, Parque Tecnológico de Galicia, San Cibrao das Viñas, 32900 Ourense, Spain;
- Área de Tecnología de los Alimentos, Facultad de Ciencias de Ourense, Universidad de Vigo, 32004 Ourense, Spain
- Correspondence:
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12
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Influence of pH and calcium concentration on milk protein fractionation by 0.1 μm microfiltration at low temperatures. Int Dairy J 2021. [DOI: 10.1016/j.idairyj.2021.105048] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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13
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Control of viscosity by addition of calcium chloride and glucono-δ-lactone to heat treated skim milk concentrates produced by reverse osmosis filtration. Int Dairy J 2021. [DOI: 10.1016/j.idairyj.2020.104916] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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14
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Akkerman M, Johansen LB, Rauh V, Sørensen J, Larsen LB, Poulsen NA. Relationship between casein micelle size, protein composition and stability of UHT milk. Int Dairy J 2021. [DOI: 10.1016/j.idairyj.2020.104856] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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15
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Wang Q, Holt C, Nylander T, Ma Y. Salt partition, ion equilibria, and the structure, composition, and solubility of micellar calcium phosphate in bovine milk with added calcium salts. J Dairy Sci 2020; 103:9893-9905. [DOI: 10.3168/jds.2020-18829] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Accepted: 07/06/2020] [Indexed: 01/26/2023]
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16
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Wu CS, Guo JH, Lin MJ. Stability Evaluation of pH-Adjusted Goat Milk for Developing Ricotta Cheese with a Mixture of Cow Cheese Whey and Goat Milk. Foods 2020; 9:foods9030366. [PMID: 32245273 PMCID: PMC7143310 DOI: 10.3390/foods9030366] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Revised: 03/18/2020] [Accepted: 03/19/2020] [Indexed: 11/21/2022] Open
Abstract
Excess summer milk and a lack of product diversity are major problems facing Taiwan’s dairy goat industry. Gouda and Mozzarella cheeses made with cow milk are popular products for leisure farms in Taiwan, and they produce a large amount of cheese whey as waste. Our objective is to identify the unstable phenomena of pH-adjusted goat milk through the use of Turbiscan Lab® Expert and to produce ricotta cheeses using cow cheese whey waste and excess goat milk. Delta backscattering (∆BS) profiles and the Turbiscan stability index (TSI) were used to evaluate the stability characteristics of goat milk adjusted to pH 6.7–5.2. The results show coagulation phenomena in skimmed goat milk and sedimentation phenomena in full-fat goat milk, when the pH was adjusted to 5.2. The TSI values of goat milk at pH 5.7 and 5.2 were significantly higher (p < 0.05) than that of a control. Therefore, 80/20 cow cheese whey/skimmed goat milk and 80/20 cow cheese whey/full-fat goat milk mixtures were acidified to pH 5.5 and heated at 90 °C for 30 min to produce ricotta cheeses A and B. The hardness value, moisture, protein, and ash contents of ricotta cheese A were significantly higher (p < 0.05) than that of ricotta cheese B, but no significant difference was found in terms of sensory evaluation.
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Affiliation(s)
- Chung-Shiuan Wu
- Department of Food Science, National Pingtung University of Science and Technology, Neipu 91201, Pingtung, Taiwan;
| | - Jia-Hsin Guo
- Department of Food Science, National Pingtung University of Science and Technology, Neipu 91201, Pingtung, Taiwan;
- Correspondence: (J.-H.G.); (M.-J.L.); Tel.: +886-8-7703202-7446 (J.-H.G.); +886-8-7703202-6189 (M.-J.L.)
| | - Mei-Jen Lin
- Department of Animal Science, National Pingtung University of Science and Technology, Neipu 91201, Pingtung, Taiwan
- Correspondence: (J.-H.G.); (M.-J.L.); Tel.: +886-8-7703202-7446 (J.-H.G.); +886-8-7703202-6189 (M.-J.L.)
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17
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Zhu Z, Guo W. Recent developments on rapid detection of main constituents in milk: a review. Crit Rev Food Sci Nutr 2020; 61:312-324. [PMID: 32106694 DOI: 10.1080/10408398.2020.1731417] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Milk is a good source of quality fats, proteins, carbohydrates, minerals, and vitamins. Determining milk constituents is very important in dairy production and is usually conducted by means of physical or chemical processes in laboratories. These methods are time-consuming and cannot satisfy the need in practice. Developing simple, quick, cost-effective, reliable, and sensitive methods on the detection of main constituents in milk is useful for dairy farmers, manufacturers and consumers. In last decades, many rapid detection techniques such as chromatography, spectroscopy, dielectric properties, and sensors, have emerged and shown great potential in the detection of main constituents in liquid milk. In this review, the rapid detection techniques applied to determine the main constituents in milk have been reviewed. Meanwhile, the potential advantages and limitations of these techniques and recommendations for future research have also been proposed.
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Affiliation(s)
- Zhuozhuo Zhu
- College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling, Shaanxi, China
| | - Wenchuan Guo
- College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling, Shaanxi, China.,Key Laboratory of Agricultural Internet of Things, Ministry of Agriculture and Rural Affairs, Yangling, Shaanxi, China.,Shaanxi Key Laboratory of Agricultural Information Perception and Intelligent Service, Yangling, Shaanxi, China
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18
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Akkerman M, Larsen L, Sørensen J, Poulsen N. Natural variations of citrate and calcium in milk and their effects on milk processing properties. J Dairy Sci 2019; 102:6830-6841. [DOI: 10.3168/jds.2018-16195] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 04/02/2019] [Indexed: 11/19/2022]
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19
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Li S, Ye A, Singh H. Seasonal variations in composition, properties, and heat-induced changes in bovine milk in a seasonal calving system. J Dairy Sci 2019; 102:7747-7759. [PMID: 31326173 DOI: 10.3168/jds.2019-16685] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 05/23/2019] [Indexed: 11/19/2022]
Abstract
We determined seasonal variations in the composition and characteristics of bovine milk, as well as heat-induced changes in the physicochemical properties of the milk, in a typical seasonal-calving New Zealand herd over 2 full milking seasons. Fat, protein, and lactose contents varied consistently during the year in patterns similar to those of the lactation cycle. Seasonality also had significant effects on milk calcium, ionic calcium, fat globule size, buffering capacity, and ethanol stability, but not on casein micelle size. The ratio of casein to total protein did not vary significantly over the season, but late-season milk had the highest content of glycosylated κ-casein (G-κ-CN) and the lowest content of α-lactalbumin in both years. We observed significant between-year effects on protein, total calcium, ionic calcium, pH, and casein:total protein ratio, which might have resulted from different somatic cell counts in the 2 years. Compared with heating at 90°C for 6 min, UHT treatment (140°C for 5 s) induced greater dissociation of κ-casein, a similar extent of whey protein denaturation, a lower extent of whey protein-casein micelle association, and a larger increase in casein micelle size. Indeed, UHT treatment might have triggered significant dissociation of G-κ-CN, resulting in aggregation among the casein micelles and increased apparent mean casein micelle diameter. Seasonality had significant effects on the partitioning of G-κ-CN between the micelle and the serum phase, the extent of whey protein-casein micelle association under both heating conditions, and the casein micelle size of the UHT milk.
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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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Kandeel SA, Megahed AA, Constable PD. Evaluation of hand-held sodium, potassium, calcium, and electrical conductivity meters for diagnosing subclinical mastitis and intramammary infection in dairy cattle. J Vet Intern Med 2019; 33:2343-2353. [PMID: 31294480 PMCID: PMC6766502 DOI: 10.1111/jvim.15550] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 06/19/2019] [Indexed: 11/29/2022] Open
Abstract
Background Subclinical mastitis (SCM) and intramammary infection (IMI) increase the sodium (Na) concentration and electrical conductivity (EC) and decrease the potassium (K) and calcium (Ca) concentrations in glandular secretions of lactating dairy cattle. Hypothesis Low‐cost portable Na, K, Ca, and EC meters are clinically useful cow‐side tests for diagnosing SCM and IMI. Animals One hundred fifteen dairy cows at dry off and 92 cows within 4‐7 days postcalving. Methods Quarter foremilk samples were obtained and the somatic cell count (SCC) was measured using a DeLaval cell counter with SCM defined as SCC ≥ 200 000 cells/mL. Microbiological culture of foremilk samples was used to diagnose IMI. Cisternal milk Na, K, and Ca concentrations and EC were measured using portable ion‐selective meters. Logistic regression was used to determine the area under the receiver operating characteristic curve (AUC) and the optimal cut point was determined using Youden's index. Diagnostic test performance was evaluated by comparing the AUC and calculating the sensitivity, specificity, and positive likelihood ratio (+LR) at the optimal cut point for SCM and IMI. Results Diagnostic test performance was much better when the meters were used to diagnose SCM as compared to IMI. Cisternal milk Na concentration provided the most accurate method for identifying quarters with SCM or IMI. However, AUC was <0.90 and +LR was <10 for all diagnostic test evaluations. Conclusions and Clinical Importance Cisternal milk Na, K, and Ca concentrations and EC were not sufficiently predictive of SCM or IMI to be recommended as clinically useful diagnostic tests.
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Affiliation(s)
- Sahar A Kandeel
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Champaign, Illinois.,Department of Animal Medicine, Faculty of Veterinary Medicine, Benha University, Kalyobiya, Egypt
| | - Ameer A Megahed
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Champaign, Illinois.,Department of Animal Medicine, Faculty of Veterinary Medicine, Benha University, Kalyobiya, Egypt
| | - Peter D Constable
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Champaign, Illinois
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Chen BY, Ren FY, Grandison AS, Lewis MJ. Comparison of heat stability of cow's milk subjected to ultra‐high temperature and in‐container sterilisation. INT J DAIRY TECHNOL 2019. [DOI: 10.1111/1471-0307.12609] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Bi Ye Chen
- Abbott Nutrition Research and Development20 Biopolis way Singapore Singapore
| | - Fei Yue Ren
- School of Food and Nutritional Sciences University College Cork Western Road Cork Ireland
| | - Alistair S Grandison
- Department of Food and Nutritional Sciences University of Reading Whiteknights PO Box 226 Reading RG6 6AP UK
| | - Michael J Lewis
- Department of Food and Nutritional Sciences University of Reading Whiteknights PO Box 226 Reading RG6 6AP UK
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22
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Calcium-induced skim milk gels using different calcium salts. Food Chem 2018; 245:97-103. [DOI: 10.1016/j.foodchem.2017.10.081] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 10/12/2017] [Accepted: 10/15/2017] [Indexed: 11/18/2022]
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Poulsen NA, Gregersen VR, Maciel GM, Madsen LB, Buitenhuis B, Hansen MS, Bendixen C, Larsen LB. Novel genetic variation associated to CSN3 strongly affects rennet-induced milk coagulation. Int Dairy J 2017. [DOI: 10.1016/j.idairyj.2017.03.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Khanal BKS, Bhandari B, Prakash S, Bansal N. Effect of Sodium Alginate Addition on Physical Properties of Rennet Milk Gels. FOOD BIOPHYS 2017. [DOI: 10.1007/s11483-017-9470-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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26
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Lin MJ, Grandison A, Lewis M. Partitioning of calcium and magnesium (total divalent cations) during membrane filtration of milk. J FOOD ENG 2015. [DOI: 10.1016/j.jfoodeng.2014.10.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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27
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Effect of calcium content and flow regime on whey protein fouling and cleaning in a plate heat exchanger. J FOOD ENG 2015. [DOI: 10.1016/j.jfoodeng.2014.09.020] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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Pa’ee KF, Gibson T, Marakilova B, Jauregi P. Production of acid whey hydrolysates applying an integrative process: Effect of calcium on process performance. Process Biochem 2015. [DOI: 10.1016/j.procbio.2014.11.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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29
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Li YH, Wang WJ, Meng YC, Chen J. Formation and Gelation Role of Serum Protein Aggregates during the Manufacture of Milk Powder. J FOOD PROCESS ENG 2014. [DOI: 10.1111/jfpe.12163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Yan Hua Li
- College of Food Science and Biotechnology; Zhe Jiang Gong Shang University; Hangzhou 310018 China
| | - Wei Jun Wang
- Research & Development Institute; Zhejiang Beingmate Scientific-Industrial-Trade Share Co., Ltd.; Hangzhou China
| | - Yue Cheng Meng
- College of Food Science and Biotechnology; Zhe Jiang Gong Shang University; Hangzhou 310018 China
| | - Jie Chen
- College of Food Science and Biotechnology; Zhe Jiang Gong Shang University; Hangzhou 310018 China
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30
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Tercinier L, Ye A, Anema SG, Singh A, Singh H. Interactions of casein micelles with calcium phosphate particles. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:5983-5992. [PMID: 24896851 DOI: 10.1021/jf5018143] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Insoluble calcium phosphate particles, such as hydroxyapatite (HA), are often used in calcium-fortified milks as they are considered to be chemically unreactive. However, this study showed that there was an interaction between the casein micelles in milk and HA particles. The caseins in milk were shown to bind to the HA particles, with the relative proportions of bound β-casein, αS-casein, and κ-casein different from the proportions of the individual caseins present in milk. Transmission electron microscopy showed no evidence of intact casein micelles on the surface of the HA particles, which suggested that the casein micelles dissociated either before or during binding. The HA particles behaved as ion chelators, with the ability to bind the ions contained in the milk serum phase. Consequently, the depletion of the serum minerals disrupted the milk mineral equilibrium, resulting in dissociation of the casein micelles in milk.
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Affiliation(s)
- Lucile Tercinier
- Riddet Institute, Massey University , Private Bag 11 222, Palmerston North 4442, New Zealand
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31
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Szekely P, Sheftel H, Mayo A, Alon U. Evolutionary tradeoffs between economy and effectiveness in biological homeostasis systems. PLoS Comput Biol 2013; 9:e1003163. [PMID: 23950698 PMCID: PMC3738462 DOI: 10.1371/journal.pcbi.1003163] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Accepted: 06/05/2013] [Indexed: 11/20/2022] Open
Abstract
Biological regulatory systems face a fundamental tradeoff: they must be effective but at the same time also economical. For example, regulatory systems that are designed to repair damage must be effective in reducing damage, but economical in not making too many repair proteins because making excessive proteins carries a fitness cost to the cell, called protein burden. In order to see how biological systems compromise between the two tasks of effectiveness and economy, we applied an approach from economics and engineering called Pareto optimality. This approach allows calculating the best-compromise systems that optimally combine the two tasks. We used a simple and general model for regulation, known as integral feedback, and showed that best-compromise systems have particular combinations of biochemical parameters that control the response rate and basal level. We find that the optimal systems fall on a curve in parameter space. Due to this feature, even if one is able to measure only a small fraction of the system's parameters, one can infer the rest. We applied this approach to estimate parameters in three biological systems: response to heat shock and response to DNA damage in bacteria, and calcium homeostasis in mammals. Many systems in the cell work to keep homeostasis, or balance. For example, damage repair systems make special repair proteins to resolve damage. These systems typically have many biochemical parameters such as biochemical rate constants, and it is not clear how much of the huge parameter space is filled by actual biological systems. We examined how natural selection acts on these systems when there are two important tasks: effectiveness – rapidly repairing damage, and economy – avoiding excessive production of repair proteins. We find that this multi-task optimization situation leads to natural selection of circuits that lie on a curve in parameter space. Thus, most of parameter space is empty. Estimating only a few parameters of the circuit is enough to predict the rest. This approach allowed us to estimate parameters for bacterial heat shock and DNA repair systems, and for a mammalian hormone system responsible for calcium homeostasis.
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Affiliation(s)
- Pablo Szekely
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Hila Sheftel
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Avi Mayo
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Uri Alon
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
- * E-mail:
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The Microstructure and Physicochemical Properties of Probiotic Buffalo Yoghurt During Fermentation and Storage: a Comparison with Bovine Yoghurt. FOOD BIOPROCESS TECH 2013. [DOI: 10.1007/s11947-013-1082-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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33
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Hussain I, Yan J, Grandison AS, Bell AE. Effects of gelation temperature on Mozzarella-type curd made from buffalo and cows’ milk: 2. Curd yield, overall quality and casein fractions. Food Chem 2012; 135:1404-10. [DOI: 10.1016/j.foodchem.2012.05.110] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2011] [Revised: 05/03/2012] [Accepted: 05/29/2012] [Indexed: 11/27/2022]
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Chen BY, Grandison AS, Lewis MJ. Comparison of heat stability of goat milk subjected to ultra-high temperature and in-container sterilization. J Dairy Sci 2012; 95:1057-63. [PMID: 22365189 DOI: 10.3168/jds.2011-4367] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2011] [Accepted: 10/14/2011] [Indexed: 11/19/2022]
Abstract
Goat milk with and without stabilizing salt was subjected to in-container and UHT sterilization. Heat stability was assessed by measuring the amount of sediment in the milk. Without stabilizing salts, goat milk usually produced less sediment when subjected to in-container sterilization compared with UHT processing. Addition of stabilizing salts up to 12.8mM resulted in a progressive increase in sediment for in-container sterilization. In contrast, adding stabilizing salts at 6.4mM initially reduced sediment formation in UHT-treated milk but addition of stabilizing salts at 12.8mM increased sediment formation. Adding stabilizing salts to goat milk increased pH, decreased ionic calcium, and increased ethanol stability. Adding up to 2mM calcium chloride increased sediment formation more after UHT treatment than after in-container sterilization. These results suggest that no single mechanism or set of reactions causes milk to produce sediment during heating and that the favored pathway is different for UHT and in-container sterilization processes. Poor heat stability could be induced both by increasing ionic calcium and by decreasing it. Ethanol stability is not a good indicator of heat stability for in-container sterilization, but it may be for UHT sterilization, if milk does not enter the region of poor heat stability found at low concentrations of ionic calcium.
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Affiliation(s)
- B Y Chen
- Department of Food and Nutritional Sciences, University of Reading, Whiteknights, PO Box 226, Reading, RG6 6AP, United Kingdom
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35
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Hussain I, Bell AE, Grandison AS. Mozzarella-Type Curd Made from Buffalo, Cows’ and Ultrafiltered Cows’ Milk. 1. Rheology and Microstructure. FOOD BIOPROCESS TECH 2012. [DOI: 10.1007/s11947-012-0834-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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36
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On-Nom N, Grandison A, Lewis M. Heat stability of milk supplemented with calcium chloride. J Dairy Sci 2012; 95:1623-31. [DOI: 10.3168/jds.2011-4697] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2011] [Accepted: 12/11/2011] [Indexed: 11/19/2022]
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37
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RAMASUBRAMANIAN LAKSHMI, D’ARCY BRUCE, DEETH HILTONC. Heat-induced coagulation of whole milk by high levels of calcium chloride. INT J DAIRY TECHNOL 2012. [DOI: 10.1111/j.1471-0307.2012.00823.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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38
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Pathomrungsiyounggul P, Grandison AS, Lewis M. Feasibility of using dialysis for determining calcium ion concentration and pH in calcium-fortified soymilk at high temperature. J Food Sci 2012; 77:E10-6. [PMID: 22260105 DOI: 10.1111/j.1750-3841.2011.02436.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Dialysis was performed to examine some of the properties of the soluble phase of calcium (Ca) fortified soymilk at high temperatures. Dialysates were obtained while heating soymilk at temperatures of 80 and 100 °C for 1 h and 121 °C for 15 min. It was found that the pH, total Ca, and ionic Ca of dialysates obtained at high temperature were all lower than in their corresponding nonheated Ca-fortified soymilk. Increasing temperature from 80 to 100 °C hardly affected Ca ion concentration ([Ca²⁺]) of dialysate obtained from Ca chloride-fortified soymilk, but it increased [Ca²⁺] in dialysates of Ca gluconate-fortified soymilk and Ca lactate-fortified soymilk fortified with 5 to 6 mM Ca. Dialysates obtained at 100 °C had lower pH than dialysate prepared at 80 °C. Higher Ca additions to soymilk caused a significant (P≤ 0.05) reduction in pH and an increase in [Ca²⁺] of these dialysates. When soymilk was dialyzed at 121 °C, pH, total Ca, and ionic Ca were further reduced. Freezing point depression (FPD) of dialysates increased as temperature increased but were lower than corresponding soymilk samples. This approach provides a means of estimating pH and ionic Ca in soymilks at high temperatures, in order to better understand their combined role on soymilk coagulation.
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Accurate determination of the Ca2+ activity in milk-based systems by Ca-ISE: Effects of ionic composition on the single Ca2+ activity coefficient and liquid junction potentials. Food Chem 2011; 129:619-623. [DOI: 10.1016/j.foodchem.2011.04.076] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2010] [Revised: 03/13/2011] [Accepted: 04/24/2011] [Indexed: 11/21/2022]
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Abstract
The soluble phase of milk was separated at 20 and 80°C using ultrafiltration. The resulting permeates were then subjected to further ultrafiltration and dialysis at close to these two temperatures. It was found that pH, Ca2+ and soluble Ca decreased as the separation temperature increased both in original UF permeates and in dialysates obtained from these permeates, but P decreased only slightly. The major reason for these changes was due to the precipitation of calcium phosphate/citrate complexes onto the casein micelle with concomitant release of H+. The pH of both permeates and dialysates from milk at 20°C were slightly higher than for milk. When UF permeates collected at 20 and 80°C, were each dialysed at both these temperatures, the dialysate collected at 80°C showed much less temperature dependence for pH and ionic calcium compared with that collected at 20°C. This is in contrast to milk, which shows considerable temperature dependence for pH and ionic calcium. Further experiments revealed that the pH and Ca2+ concentration of permeates showed high temperature dependence above the temperature at which they were separated, but a much lower temperature dependence below that temperature. These findings suggest that dialysis and UF of milk at high temperature provide the best means yet for estimating the pH and ionic calcium of milk at that temperature.
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Gonzalez-Gonzalez C, Tuohy K, Jauregi P. Production of angiotensin-I-converting enzyme (ACE) inhibitory activity in milk fermented with probiotic strains: Effects of calcium, pH and peptides on the ACE-inhibitory activity. Int Dairy J 2011. [DOI: 10.1016/j.idairyj.2011.04.001] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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SYRIOS ANDREAS, FAKA MARIANTHI, GRANDISON ALISTAIRS, LEWIS MICHAELJ. A comparison of reverse osmosis, nanofiltration and ultrafiltration as concentration processes for skim milk prior to drying. INT J DAIRY TECHNOL 2011. [DOI: 10.1111/j.1471-0307.2011.00719.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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The effect of protein concentration and heat treatment temperature on micellar casein–soy protein mixtures. Food Hydrocoll 2011. [DOI: 10.1016/j.foodhyd.2011.01.011] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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EZEH VERONICAN, LEWIS MICHAELJ. Milk reversibility following reduction and restoration of pH. INT J DAIRY TECHNOL 2011. [DOI: 10.1111/j.1471-0307.2010.00649.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Pathomrungsiyounggul P, Grandison AS, Lewis MJ. Effect of calcium carbonate, calcium citrate, tricalcium phosphate, calcium gluconate and calcium lactate on some physicochemical properties of soymilk. Int J Food Sci Technol 2010. [DOI: 10.1111/j.1365-2621.2010.02399.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Flett KL, Corredig M, Goff HD. Heat stability of aggregated particles of casein micelles and kappa-carrageenan. J Food Sci 2010; 75:C433-8. [PMID: 20629864 DOI: 10.1111/j.1750-3841.2010.01618.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Aggregated particles of casein micelles and kappa-carrageenan were produced as a dried milk ingredient, then reconstituted and subjected to a heat treatment of 70 degrees C for 10 min. The reconstituted aggregates were found to be unstable when heated. Light scattering results showed that the aggregates dissociated partially into casein micelles. It was hypothesized that the removal of ions during ultrafiltration before spray-drying to produce the powdered ingredient significantly decreased stability upon reconstitution and heat treatment. When ions, either from whey permeate or calcium addition, were added to reconstituted aggregates, stability was greatly enhanced and the aggregates remained intact when subjected to heat. The effect of heat treatment on aggregates freshly produced with skim milk powder and kappa-carrageenan was also studied. These aggregates were found to be stable during heating due to the unchanged ionic environment. Therefore, incorporation of powdered aggregates of casein micelles and kappa-carrageenan into products would require the addition of whey permeate or calcium after reconstitution for stability during subsequent heating.
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48
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Effects of stabiliser addition and in-container sterilisation on selected properties of milk related to casein micelle stability. Food Chem 2010. [DOI: 10.1016/j.foodchem.2010.03.063] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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49
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Devold TG, Nordbø R, Langsrud T, Svenning C, Jansen Brovold M, Sørensen ES, Christensen B, Ådnøy T, Vegarud GE. Extreme frequencies of the αs1-casein “null” variant in milk from Norwegian dairy goats – Implications for milk composition, micellar size and renneting properties. ACTA ACUST UNITED AC 2010. [DOI: 10.1051/dst/2010033] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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50
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OMOARUKHE ESEREOSAD, ON-NOM NATTIRA, GRANDISON ALISTAIRS, LEWIS MICHAELJ. Effects of different calcium salts on properties of milk related to heat stability. INT J DAIRY TECHNOL 2010. [DOI: 10.1111/j.1471-0307.2010.00613.x] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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