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Liao M, Li W, Peng L, Li J, Ren J, Li K, Chen F, Hu X, Liao X, Ma L, Ji J. High hydrostatic pressure induced gastrointestinal digestion behaviors of quercetin-loaded casein delivery systems under different calcium concentration. Food Chem X 2024; 21:101177. [PMID: 38434693 PMCID: PMC10904925 DOI: 10.1016/j.fochx.2024.101177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 01/17/2024] [Accepted: 02/01/2024] [Indexed: 03/05/2024] Open
Abstract
Casein micelle has a structure of outer hydrophilicity and inner hydrophobicity, its typical digestion characteristic is gastric coagulation. Based on calcium content as the key factor to control this process, high hydrostatic pressure (HHP) was firstly used to modify the micelle structure by mediating the tight connection between casein molecules themselves and with colloidal calcium, then the quercetin-loaded delivery systems were prepared. And in order to investigate the effect of exogenous calcium, calcium chloride was added for digestion. The results indicated that HHP broke the limitation of casein micelles as delivery carriers for hydrophobic components and increased the EE from 51.18 ± 3.07 % to 76.17 ± 3.41 %. During gastric digestion, higher pressure and exogenous calcium synergistically increased the clotting ability and inhibited the release of quercetin. In the small intestine, curds decomposed more slowly under higher pressure and calcium concentration, so the degradation of quercetin was effectively inhibited.
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Affiliation(s)
| | | | - Lu Peng
- College of Food Science and Nutritional Engineering, National Engineering Research Center for Fruit and Vegetable Processing, China Agricultural University, Key Lab of Fruit and Vegetable Processing, Ministry of Agriculture and Rural Affairs, Beijing 100083, China
| | - Jiahao Li
- College of Food Science and Nutritional Engineering, National Engineering Research Center for Fruit and Vegetable Processing, China Agricultural University, Key Lab of Fruit and Vegetable Processing, Ministry of Agriculture and Rural Affairs, Beijing 100083, China
| | - Jinbo Ren
- College of Food Science and Nutritional Engineering, National Engineering Research Center for Fruit and Vegetable Processing, China Agricultural University, Key Lab of Fruit and Vegetable Processing, Ministry of Agriculture and Rural Affairs, Beijing 100083, China
| | - Kaixin Li
- College of Food Science and Nutritional Engineering, National Engineering Research Center for Fruit and Vegetable Processing, China Agricultural University, Key Lab of Fruit and Vegetable Processing, Ministry of Agriculture and Rural Affairs, Beijing 100083, China
| | - Fang Chen
- College of Food Science and Nutritional Engineering, National Engineering Research Center for Fruit and Vegetable Processing, China Agricultural University, Key Lab of Fruit and Vegetable Processing, Ministry of Agriculture and Rural Affairs, Beijing 100083, China
| | - Xiaosong Hu
- College of Food Science and Nutritional Engineering, National Engineering Research Center for Fruit and Vegetable Processing, China Agricultural University, Key Lab of Fruit and Vegetable Processing, Ministry of Agriculture and Rural Affairs, Beijing 100083, China
| | - Xiaojun Liao
- College of Food Science and Nutritional Engineering, National Engineering Research Center for Fruit and Vegetable Processing, China Agricultural University, Key Lab of Fruit and Vegetable Processing, Ministry of Agriculture and Rural Affairs, Beijing 100083, China
| | - Lingjun Ma
- College of Food Science and Nutritional Engineering, National Engineering Research Center for Fruit and Vegetable Processing, China Agricultural University, Key Lab of Fruit and Vegetable Processing, Ministry of Agriculture and Rural Affairs, Beijing 100083, China
| | - Junfu Ji
- College of Food Science and Nutritional Engineering, National Engineering Research Center for Fruit and Vegetable Processing, China Agricultural University, Key Lab of Fruit and Vegetable Processing, Ministry of Agriculture and Rural Affairs, Beijing 100083, China
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2
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Manik S, Meena GS, Singh AK, Khetra Y, Singh R, Arora S, Vishweswaraiah RH. Valorization of Sour Buttermilk (A Potential Waste Stream): Conversion to Powder Employing Reverse Osmosis and Spray Drying. MEMBRANES 2023; 13:799. [PMID: 37755221 PMCID: PMC10534478 DOI: 10.3390/membranes13090799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 09/13/2023] [Accepted: 09/14/2023] [Indexed: 09/28/2023]
Abstract
Reverse osmosis (RO) is known for the economic dewatering of dairy streams without any change in phase. At the household level, surplus milk is fermented and churned to obtain butter, which is subsequently heated to obtain clarified milk fat (ghee). The production of 1 kg ghee generates 15-20 kg sour buttermilk (SBM) as a by-product that is mostly drained. This causes a loss of milk solids and environmental pollution. The processing, preservation and valorization of SBM are quite challenging because of its low total solids (TS) and pH, poor heat stability and limited shelf life. This investigation aimed to transform SBM into a novel dried dairy ingredient. SBM was thermized, filtered, defatted and concentrated at 35 ± 1 °C, employing RO up to 3.62× (12.86%). The RO concentrate was subsequently converted into sour buttermilk powder (SBMP) by employing spray drying. SBMP was further characterized for its physicochemical, reconstitution and functional properties; rheological and morphological characteristics; and amino acid and fatty acid profiling, along with FTIR and XRD spectra. SBMP was "instant soluble-3 s" and exhibited excellent emulsion stability (80.70%), water binding capacity (4.34 g/g of protein), flowability (28.36°) and antioxidant properties. In nutshell, a process was developed for the valorization of sour buttermilk to a novel dairy ingredient by employing reverse osmosis and a spray-drying process.
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Affiliation(s)
- Subhadip Manik
- Dairy Technology Division, ICAR-National Dairy Research Institute, Karnal 132001, Haryana, India (Y.K.)
| | - Ganga Sahay Meena
- Dairy Technology Division, ICAR-National Dairy Research Institute, Karnal 132001, Haryana, India (Y.K.)
| | - Ashish Kumar Singh
- Dairy Technology Division, ICAR-National Dairy Research Institute, Karnal 132001, Haryana, India (Y.K.)
| | - Yogesh Khetra
- Dairy Technology Division, ICAR-National Dairy Research Institute, Karnal 132001, Haryana, India (Y.K.)
| | - Richa Singh
- Dairy Chemistry Division, ICAR-National Dairy Research Institute, Karnal 132001, Haryana, India
| | - Sumit Arora
- Dairy Chemistry Division, ICAR-National Dairy Research Institute, Karnal 132001, Haryana, India
| | - Raghu H. Vishweswaraiah
- Dairy Microbiology Division, ICAR-National Dairy Research Institute, Karnal 132001, Haryana, India
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3
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Cais-Sokolińska D, Teichert J, Gawałek J. Foaming and Other Functional Properties of Freeze-Dried Mare's Milk. Foods 2023; 12:foods12112274. [PMID: 37297518 DOI: 10.3390/foods12112274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 05/10/2023] [Accepted: 05/30/2023] [Indexed: 06/12/2023] Open
Abstract
The aim of this study was to evaluate the effect of the freeze-drying process on the preservation of mare's milk. This was achieved through the characterization of the functional properties of reconstituted freeze-dried mare's milk. The chemical composition, bulk density, foam capacity, and ability to form emulsions of the atherogenic, thrombogenic, and hypercholesterolemic fatty acid index were investigated. The freeze-drying process did not change the proportion of the milk components in the dry matter. The moisture content of the freeze-dried mare's milk was 10.3 g/kg and the bulk was below 0.1 g/mL. The foaming capacity was 111.3%; hence, the foaming capacity of the milk was very poor. The oil binding capacity was 2.19 g/g of protein. The freeze-drying process improves the binding degree and retention of oil by milk proteins, but produced foam was unstable, short-lived, and lacked the ability to retain air fractions. The atherogenic index and thrombogenic index values calculated for reconstituted milk were 1.02 and 0.53, respectively. The hypercholesterolemia fatty acid index was 25.01.
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Affiliation(s)
- Dorota Cais-Sokolińska
- Department of Dairy and Process Engineering, Faculty of Food Science and Nutrition, Poznań University of Life Sciences, ul. Wojska Polskiego 31/33, 60-624 Poznan, Poland
| | - Joanna Teichert
- Department of Dairy and Process Engineering, Faculty of Food Science and Nutrition, Poznań University of Life Sciences, ul. Wojska Polskiego 31/33, 60-624 Poznan, Poland
| | - Jolanta Gawałek
- Department of Dairy and Process Engineering, Faculty of Food Science and Nutrition, Poznań University of Life Sciences, ul. Wojska Polskiego 31/33, 60-624 Poznan, Poland
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4
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Garcia-Fontanals L, Llorente R, Valderrama J, Bravo S, Talens C. Hybrid Spreadable Cheese Analogues with Faba Bean and Mealworm (Tenebrio molitor) Flours: Optimisation Using Desirability-Based Mixture Design. Foods 2023; 12:foods12071522. [PMID: 37048343 PMCID: PMC10094594 DOI: 10.3390/foods12071522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 03/20/2023] [Accepted: 03/27/2023] [Indexed: 04/07/2023] Open
Abstract
Hybrid products could help bridge the gap as new alternative diets emerge in response to the demand for less animal protein, while recent studies suggest that the Western population is not yet ready to fully embrace an alternative protein-based diet. This study used a desirability-based mixture design to model hybrid spreadable cheese analogues (SCAs). The design combined milk protein concentrate (MPC), Tenebrio molitor (IF) and faba bean (FBP) flours, representing 7.1% of the formula. Nine SCAs with different MPC/FBP/IF ratios were formulated. Incorporating the IF negatively impacted the desirable texture properties. The FBP flour improved the texture (increasing firmness and stickiness and decreasing spreadability), but only when combined with MPC. Sensory analysis showed that hybrid SCAs (≤50% MPC) C2, C7 and C9 had a more characteristic cheesy flavour than the commercial plant-based reference, and sample C2 had a texture profile similar to the dairy reference. Samples containing IF (C7 and C9) showed a better flavour profile than that without IF (C2). The SCAs had higher protein and lower saturated fat, starch and sugar content than commercial analogues. The study suggests that incorporating alternative proteins in hybrid products can be an effective approach to reduce animal protein content, specifically dairy, in food formulations.
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Affiliation(s)
- Laura Garcia-Fontanals
- AZTI, Food Research, Basque Research and Technology Alliance (BRTA), Parque Tecnológico de Bizkaia, Astondo Bidea, Edificio 609, 48160 Derio, Bizkaia, Spain
- Basque Culinary Centre, Facultad de Ciencias Gastronómicas, Mondragon University, 20009 Donostia-San Sebastián, Spain
| | - Raquel Llorente
- AZTI, Food Research, Basque Research and Technology Alliance (BRTA), Parque Tecnológico de Bizkaia, Astondo Bidea, Edificio 609, 48160 Derio, Bizkaia, Spain
| | | | - Sergio Bravo
- Blendhub Innovation Department, San Ginés, 30169 Murcia, Spain
| | - Clara Talens
- AZTI, Food Research, Basque Research and Technology Alliance (BRTA), Parque Tecnológico de Bizkaia, Astondo Bidea, Edificio 609, 48160 Derio, Bizkaia, Spain
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5
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Dudi K, Khatkar SK. Development of highly soluble and functional buffalo milk protein concentrate 60 by modifying ionic environment and characterisation thereof. INT J DAIRY TECHNOL 2022. [DOI: 10.1111/1471-0307.12931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Kuldeep Dudi
- By‐products Utilization Lab, Department of Dairy Technology, College of Dairy Science and Technology Guru Angad Dev Veterinary and Animal Sciences University (GADVASU) Ludhiana Punjab India
| | - Sunil Kumar Khatkar
- By‐products Utilization Lab, Department of Dairy Technology, College of Dairy Science and Technology Guru Angad Dev Veterinary and Animal Sciences University (GADVASU) Ludhiana Punjab India
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6
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Gawande H, Arora S, Sharma V, Meena GS, Singh AK. Functional characterisation of buffalo milk protein co‐precipitate. INT J DAIRY TECHNOL 2022. [DOI: 10.1111/1471-0307.12899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hemant Gawande
- Dairy Chemistry Division ICAR‐National Dairy Research Institute Karnal Haryana 132001 India
| | - Sumit Arora
- Dairy Chemistry Division ICAR‐National Dairy Research Institute Karnal Haryana 132001 India
| | - Vivek Sharma
- Dairy Chemistry Division ICAR‐National Dairy Research Institute Karnal Haryana 132001 India
| | - Ganga S Meena
- Dairy Technology Division ICAR‐National Dairy Research Institute Karnal Haryana 132001 India
| | - Ashish K Singh
- Dairy Technology Division ICAR‐National Dairy Research Institute Karnal Haryana 132001 India
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7
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Impact of variation in calcium level on the technofunctional properties of milk protein concentrate. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128741] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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8
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Nayak CM, Ramachandra CT, Nidoni U, Hiregoudar S, Ram J, Naik N. Moisture sorption isotherms and estimation of iso‐steric heat of sorption of donkey milk powder. J FOOD PROCESS PRES 2022. [DOI: 10.1111/jfpp.16604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- C Madhusudan Nayak
- Department of Agriculture Engineering, Nehru Institute of Technology Tamilnadu‐641018 Coimbatore India
| | - CT Ramachandra
- Department of Processing and Food Engineering University of Agricultural Sciences GKVK, Bengaluru‐560065 Karnataka India
| | - Udaykumar Nidoni
- Department of Processing and Food Engineering, University of Agricultural Sciences Raichur‐584104 Karnataka India
| | - Sharanagouda Hiregoudar
- Department of Processing and Food Engineering, University of Agricultural Sciences Raichur‐584104 Karnataka India
| | - Jagjivan Ram
- AICRP on Utilization of Animal Energy, University of Agricultural Sciences Raichur‐584104 Karnataka India
| | - Nagaraj Naik
- Pesticide Residue and Food Quality Analysis Laboratory University of Agricultural Sciences Raichur‐584104 Karnataka India
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9
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Potentiality of Tenebrio molitor larva-based ingredients for the food industry: A review. Trends Food Sci Technol 2022. [DOI: 10.1016/j.tifs.2021.11.024] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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10
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Cordero-Clavijo LM, Serna-Saldívar SO, Lazo-Vélez MA, González JFA, Panata-Saquicilí D, Briones-Garcia M. Characterization, functional and biological value of protein-enriched defatted meals from sacha inchi (Plukenetia volubilis) and chocho (Lupinus mutabilis). JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2021. [DOI: 10.1007/s11694-021-01084-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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11
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Khalesi M, FitzGerald RJ. Physicochemical properties and water interactions of milk protein concentrate with two different levels of undenatured whey protein. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127516] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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12
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Mu J, Wu G, Chen Z, Klosek A, Brennan MA, Hui X, Brennan CS. The effects of blackcurrant and strawberry powder on the physicochemical and in vitro glycaemic response of starches derived from sweet potato (
Ipomoea batatas
) and potato (
Solanum tuberosum
). Int J Food Sci Technol 2021. [DOI: 10.1111/ijfs.15272] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jianlou Mu
- College of Food Science and Technology Hebei Agricultural University Baoding China
- Department of Wine, Food and Molecular Biosciences Faculty of Agriculture & Life Sciences Lincoln University Christchurch New Zealand
| | - Gang Wu
- College of Food Science and Technology Hebei Agricultural University Baoding China
- Department of Wine, Food and Molecular Biosciences Faculty of Agriculture & Life Sciences Lincoln University Christchurch New Zealand
- Riddet Institute Palmerston North New Zealand
| | - Zhizhou Chen
- College of Food Science and Technology Hebei Agricultural University Baoding China
| | - Axelle Klosek
- Department of Wine, Food and Molecular Biosciences Faculty of Agriculture & Life Sciences Lincoln University Christchurch New Zealand
- AgroSup Dijon Dijon France
| | - Magaret A. Brennan
- Department of Wine, Food and Molecular Biosciences Faculty of Agriculture & Life Sciences Lincoln University Christchurch New Zealand
- School of Science RMIT University Melbourne VIC 3000 Australia
| | - Xiaodan Hui
- College of Food Science and Technology Hebei Agricultural University Baoding China
- Department of Wine, Food and Molecular Biosciences Faculty of Agriculture & Life Sciences Lincoln University Christchurch New Zealand
- Riddet Institute Palmerston North New Zealand
| | - Charles S. Brennan
- Department of Wine, Food and Molecular Biosciences Faculty of Agriculture & Life Sciences Lincoln University Christchurch New Zealand
- Riddet Institute Palmerston North New Zealand
- School of Science RMIT University Melbourne VIC 3000 Australia
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13
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Khalesi M, FitzGerald RJ. Investigation of the flowability, thermal stability and emulsification properties of two milk protein concentrates having different levels of native whey proteins. Food Res Int 2021; 147:110576. [PMID: 34399548 DOI: 10.1016/j.foodres.2021.110576] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 06/23/2021] [Accepted: 06/27/2021] [Indexed: 11/28/2022]
Abstract
Milk protein concentrate-85 (MPC85) is a dairy ingredient which has a diverse range of applications in food products. The technofunctional properties of two MPC85 samples having similar gross composition but different levels of native whey protein (WP), i.e., MPC85S1 and MPC85S2 with 16.6 and 6.0 g native WP/100 g protein, respectively, were compared. Rheometeric analysis showed that under an applied normal stress of 1.0-15.0 kPa, the compressibility, the air permeability and the cohesiveness of MPC85S2 was higher compared to MPC85S1. Differential scanning calorimetry showed that protein denaturation in MPC85S1 began at 63 °C while for MPC85S2 it began at 70 °C. The heat coagulation time (HCT at 140 °C) for 4.2% (w/v, on a protein basis) reconstituted MPC85S1 and MPC85S2 was 2.2 and 2.7 min, respectively. While a higher lightness for MPC85S1 was evidenced using colourimeter analysis, the colour stability on oven drying at 95 °C for MPC85S2 was higher than MPC85S1. The emulsion produced with MPC85S1 flocculated after 1 d and phase separation occurred after 14 d. In the case of MPC85S2, flocculation began after 4 d while phase separation was observed at 33 d. The viscosity of MPC85S2 (4.2% (w/v) protein) was higher than MPC85S1. This study showed differences between the flowability, viscosity, colour properties, thermal stability (in powder and in reconstituted format), emulsification and buffering capacity for MPC samples having two different levels of WP denaturation. The results demonstrated that the MPCs studied having two different levels of WP denaturation could be targeted for different functional applications. The minimal/maximum level of denaturation required to induce technofunctional property differences requires further study.
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14
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Patil AT, Meena GS, Upadhyay N, Khetra Y, Singh AK, Borad SG. Buffalo milk protein concentrate 60: Effect of skim milk heat treatment on its reconstitutability and functionality. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111638] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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15
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Shinde AP, Meena GS, Handge JU. Effect of sodium triphosphate and sodium hexametaphosphate on properties of buffalo milk protein concentrate 60 (BMPC60) powder. Journal of Food Science and Technology 2021; 58:1996-2006. [PMID: 33897036 DOI: 10.1007/s13197-020-04712-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 07/11/2020] [Accepted: 08/11/2020] [Indexed: 11/25/2022]
Abstract
Milk protein concentrate (MPC) powders are high-protein, innovative dairy ingredients. Buffalo milk naturally contains higher concentrations of casein and calcium, which have adverse effect on solubility of MPC powders. Therefore, this study was undertaken to investigate the effect of Sodium triphosphate (STP) and Sodium hexametaphosphate (SHMP) addition in ultrafiltered retentate on physicochemical, functional and reconstitution properties, morphological characteristics and rheological behaviour of the resultant powder. Pasteurized buffalo skim milk (PBSM) was concentrated by ultrafiltration (UF) process to obtain 2.53 × UF retentate (2.53 × UFR) with 0.61 protein to total solids (TS) ratio. Compared to PBSM, ultrafiltration significantly increased (p < 0.05) calcium, protein and TS contents of 2.53 × UFR, but significantly decreased (p < 0.05) its heat stability. Addition of STP-SHMP mixture in 2.53 × UFR noticeably improved the solubility, flowability, water binding, oil binding, foaming capacity, foam and thermal stability and, viscosity of treated MPC60 powder over control powder. The DeBroukere (D43) mean, d50, specific surface area, span and water activity values of treated MPC60 powder were 94.96 ± 0.05, 78.33 ± 0.04 µm, 715.93 ± 0.29 m2 kg-1, 1.97 ± 0.01 and, 0.26 ± 0.01, respectively. Scanning electron micrograph showed the presence of different size powder particles without clustering. Rheological modelling of the reconstituted solution of treated MPC60 was very well described by Herschel-Bulkley model. Overall, this study established that addition of STP-SHMP salts mixer in 2.53 × UFR could improve the solubility of resultant buffalo milk based MPC60 powder.
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Affiliation(s)
- Ankush Punjaram Shinde
- By-Products Lab, Dairy Technology Division, ICAR- National Dairy Research Institute, Karnal, 132001 India
| | - Ganga Sahay Meena
- By-Products Lab, Dairy Technology Division, ICAR- National Dairy Research Institute, Karnal, 132001 India
| | - Jyoti Uttamrao Handge
- By-Products Lab, Dairy Technology Division, ICAR- National Dairy Research Institute, Karnal, 132001 India
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16
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Khalesi M, FitzGerald RJ. Insolubility in milk protein concentrates: potential causes and strategies to minimize its occurrence. Crit Rev Food Sci Nutr 2021; 62:6973-6989. [PMID: 33856251 DOI: 10.1080/10408398.2021.1908955] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Milk protein concentrates (MPCs), which are produced from skim milk following a series of manufacturing steps including pasteurization, membrane filtration, evaporation and spray drying, represent a relatively new category of dairy ingredients. MPC powders mainly comprise caseins and whey proteins in the same ratio of occurrence as in milk. While bovine MPCs have applications as an ingredient in several protein enriched food products, technofunctional concerns, e.g., reduced solubility and emulsification properties, especially after long-term storage, limit their widespread and consistent utilization in many food products. Changes in the surface and internal structure of MPC powder particles during manufacture and storage occur via casein-casein and casein-whey protein interactions and also via the formation of casein crosslinks in the presence of calcium ions which are associated with diminishment of MPCs functional properties. The aggregation of micellar caseins as a result of these interactions has been considered as the main cause of insolubility in MPCs. In addition, the occurrence of lactose-protein interactions as a result of the promotion of the Maillard reaction mainly during storage of MPC may lead to greater insolubility. This review focuses on the solubility of MPC with an emphasis on understanding the factors involved in its insolubility along with approaches which may be employed to overcome MPC insolubility. Several strategies have been developed based on manipulation of the manufacturing process, along with composition, physical, chemical and enzymatic modifications to overcome MPC insolubility. Despite many advances, dairy ingredient manufacturers are still investigating technical solutions to resolve the insolubility issues associated with the large-scale manufacture of MPC.
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17
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Wu S, Cronin K, Fitzpatrick J, Miao S. Updating insights into the rehydration of dairy-based powder and the achievement of functionality. Crit Rev Food Sci Nutr 2021; 62:6664-6681. [PMID: 33792423 DOI: 10.1080/10408398.2021.1904203] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Dairy-based powder had considerable development in the recent decade. Meanwhile, the increased variety of dairy-based powder led to the complex difficulties of rehydrating dairy-based powder, which could be the poor wetting or dissolution of powder. To solve these various difficulties, previous studies investigated the rehydration of powder by mechanical and chemical methods on facilitating rehydration, while strategies were designed to improve the rate-limiting rehydration steps of different powder. In this review, special emphasis is paid to the surface and structure of the dairy-based powder, which was accountable for understanding rehydration and the rate-limiting step. Besides, the advantage and disadvantage of methods employed in rehydration were described and compared. The achievement of the powder functionality was finally discussed and correlated with the rehydration methods. It was found that the surface and structure of dairy-based powder were decided by the components and production of powder. Post-drying methods like agglomeration and coating can tailor the surface and structure of powder afterwards to obtain better rehydration. The merit of the mechanical method is that it can be applied to rehydrate dairy-based powder without any addition of chemicals. Regarding chemical methods, calcium chelation is proved to be an effective chemical in rehydration casein-based powder.
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Affiliation(s)
- Shaozong Wu
- Teagasc Food Research Centre, Moorepark, Co. Cork, Ireland.,Process & Chemical Engineering, School of Engineering, University College Cork, Cork, Ireland
| | - Kevin Cronin
- Process & Chemical Engineering, School of Engineering, University College Cork, Cork, Ireland
| | - John Fitzpatrick
- Process & Chemical Engineering, School of Engineering, University College Cork, Cork, Ireland
| | - Song Miao
- Teagasc Food Research Centre, Moorepark, Co. Cork, Ireland
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18
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Pattnaik M, Mishra HN. Amelioration of the stability of polyunsaturated fatty acids and bioactive enriched vegetable oil: blending, encapsulation, and its application. Crit Rev Food Sci Nutr 2021; 62:6253-6276. [PMID: 33724100 DOI: 10.1080/10408398.2021.1899127] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Lipid oxidation in vegetable oils is the primary concern for food technologists. Modification of oils like hydrogenation, fractionation, inter-esterification, and blending are followed to improve nutritional quality. Blending non-conventional/conventional vegetable oils to obtain a synergistic oil mixture is commonly practiced in the food industry to enhance the nutritional characteristics and stability of oil at an affordable price. Microencapsulation of these oils provides a functional barrier of core and coating material from the adverse environmental conditions, thereby enhancing the oxidative stability, thermo-stability, shelf-life, and biological activity of oils. Microencapsulation of oils has been conducted and commercialized by employing different conventional methods including emulsification, spray-drying, freeze-drying, coacervation, and melt-extrusion compared with new, improved methods like microwave drying, spray chilling, and co-extrusion. The microencapsulated oil emulsion can be either dried to easy-to-handle solids/microcapsules, converted into soft solids, or enclosed in a gel-like matrix, increasing the shelf-life of the liquid oil. The omega-rich microcapsules have a wide application in confectionery, dairy, ice-cream, and pharmaceutical industries. This review summarizes recent developments in blending and microencapsulation technologies in improving the stability and nutritional value of edible oils.
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Affiliation(s)
- Monalisha Pattnaik
- Agricultural and Food Engineering Department, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, India
| | - Hari Niwas Mishra
- Agricultural and Food Engineering Department, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, India
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20
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Effect of spray and freeze drying on physico-chemical, functional, moisture sorption and morphological characteristics of camel milk powder. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2020.110117] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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21
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Milovanovic B, Djekic I, Miocinovic J, Djordjevic V, Lorenzo JM, Barba FJ, Mörlein D, Tomasevic I. What Is the Color of Milk and Dairy Products and How Is It Measured? Foods 2020; 9:foods9111629. [PMID: 33171601 PMCID: PMC7695135 DOI: 10.3390/foods9111629] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 10/30/2020] [Accepted: 11/04/2020] [Indexed: 11/16/2022] Open
Abstract
Exactly six-hundred (600) scientific articles that report milk and milk products’ color results in scientific journals in the last couple of decades were reviewed. Thereof, the greatest part of the articles derived from Europe (36.3%) and Asia (29.5%). The greatest share of researchers used Minolta colorimeters (58.8%), while 26.3% of them used Hunter devices. Most reports were on cheese (31.0%) followed by fermented products (21.2%). Moreover, the highest number of papers reported color data of milk and milk products made from cow’s milk (44.81%). As expected, goat’s cheese was the brightest (L* = 87.1), while cow’s cheese was the yellowest (b* = 17.4). Most importantly, it appeared that color research results reported were often impossible to replicate or to interpret properly because of incomplete description of the methodology. In some of the manuscripts reviewed, illuminant source (61.0%), aperture size (93.8%), observer angle, and number of readings (over 70% of all cases) were not reported. It is therefore critical to set rules regarding the description of the methodology for (milk) color research articles in order to ensure replicability and/or comparison of studies.
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Affiliation(s)
- Bojana Milovanovic
- Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080 Belgrade, Serbia; (I.D.); (J.M.); (I.T.)
- Correspondence:
| | - Ilija Djekic
- Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080 Belgrade, Serbia; (I.D.); (J.M.); (I.T.)
| | - Jelena Miocinovic
- Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080 Belgrade, Serbia; (I.D.); (J.M.); (I.T.)
| | - Vesna Djordjevic
- Institute of Meat Hygiene and Technology, Kaćanskog 13, 11000 Belgrade, Serbia;
| | - Jose M. Lorenzo
- Centro Tecnológico de la Carne de Galicia, Parque Tecnológico de Galicia, 32900 San Cibrao das Viñas, Ourense, Spain;
| | - Francisco J. Barba
- Preventive Medicine and Public Health, Food Sciences, Toxicology and Forensic Medicine Department, Faculty of Pharmacy, University of Valencia, 46100 Burjassot, Valencia, Spain;
| | - Daniel Mörlein
- Department of Animal Sciences, University of Göttingen, D-37075 Göttingen, Germany;
| | - Igor Tomasevic
- Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080 Belgrade, Serbia; (I.D.); (J.M.); (I.T.)
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22
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Milk protein concentrates 80: Does composition of buffalo milk matter for its poor functionality? Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2020.109652] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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23
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Production of Liquid Milk Protein Concentrate with Antioxidant Capacity, Angiotensin Converting Enzyme Inhibitory Activity, Antibacterial Activity, and Hypoallergenic Property by Membrane Filtration and Enzymatic Modification of Proteins. Processes (Basel) 2020. [DOI: 10.3390/pr8070871] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Liquid milk protein concentrate with different beneficial values was prepared by membrane filtration and enzymatic modification of proteins in a sequential way. In the first step, milk protein concentrate was produced from ultra-heat-treated skimmed milk by removing milk serum as permeate. A tubular ceramic-made membrane with filtration area 5 × 10−3 m2 and pore size 5 nm, placed in a cross-flow membrane house, was adopted. Superior operational strategy in filtration process was herein: trans-membrane pressure 3 bar, retention flow rate 100 L·h−1, and implementation of a static turbulence promoter within the tubular membrane. Milk with concentrated proteins from retentate side was treated with the different concentrations of trypsin, ranging from 0.008–0.064 g·L−1 in individual batch-mode operations at temperature 40 °C for 10 min. Subsequently, inactivation of trypsin in reaction was done at a temperature of 70 °C for 30 min of incubation. Antioxidant capacity in enzyme-treated liquid milk protein concentrate was measured with the Ferric reducing ability of plasma assay. The reduction of angiotensin converting enzyme activity by enzyme-treated liquid milk protein concentrate was measured with substrate (Abz-FRK(Dnp)-P) and recombinant angiotensin converting enzyme. The antibacterial activity of enzyme-treated liquid milk protein concentrate towards Bacillus cereus and Staphylococcus aureus was tested. Antioxidant capacity, anti-angiotensin converting enzyme activity, and antibacterial activity were increased with the increase of trypsin concentration in proteolytic reaction. Immune-reactive proteins in enzyme-treated liquid milk protein concentrate were identified with clinically proved milk positive pooled human serum and peroxidase-labelled anti-human Immunoglobulin E. The reduction of allergenicity in milk protein concentrate was enzyme dose-dependent.
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24
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Gravel A, Doyen A. The use of edible insect proteins in food: Challenges and issues related to their functional properties. INNOV FOOD SCI EMERG 2020. [DOI: 10.1016/j.ifset.2019.102272] [Citation(s) in RCA: 95] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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25
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Li XY, Cheng M, Li J, Zhao X, Qin YS, Chen D, Wang JM, Wang CF. Change in the structural and functional properties of goat milk protein due to pH and heat. J Dairy Sci 2019; 103:1337-1351. [PMID: 31785880 DOI: 10.3168/jds.2019-16862] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 10/02/2019] [Indexed: 01/11/2023]
Abstract
This study was carried out to investigate the effects of pH and heat on the structure and function of milk proteins by comparing goat milk treated under different pH and temperature conditions. The results showed that pH had a significant effect on the thermal stability of goat milk proteins, and the proteins were least thermally stable at pH 7.7. Except for the pH 6.9 goat milk, the surface hydrophobicities of the milk proteins at various pH values reached their maxima at 85°C. The particle size, zeta potential, and content of regular secondary structure also decreased significantly at 85°C, and the turbidity of milk proteins under alkaline pH conditions was lower than that under acidic conditions. It was concluded that alkaline conditions resulted in better emulsion stability and oil-holding capacity, and acidic conditions offered better foaming ability, foam stability, and water-holding capacity for goat milk protein during heat processing. It can also be seen that 85°C was the key temperature for milk proteins after changing the pH of the milk. This paper provides a theoretical basis for optimizing the processing conditions for goat milk and the applications of goat milk proteins.
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Affiliation(s)
- X Y Li
- College of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China, 250353
| | - M Cheng
- Qingdao Research Institute of Husbandry and Veterinary, Qingdao, China, 266100
| | - J Li
- College of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China, 250353
| | - X Zhao
- College of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China, 250353
| | - Y S Qin
- College of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China, 250353
| | - D Chen
- College of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China, 250353
| | - J M Wang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Taian, China, 271018
| | - C F Wang
- College of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China, 250353.
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26
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Uttamrao HJ, Meena GS, Borad SG, Punjaram SA, Khetra Y, Upadhyay N, Singh AK. Effect of disodium phosphate and homogenization on physico-chemical and rheological properties of buffalo skim milk based ultrafiltered retentate. Journal of Food Science and Technology 2019; 56:2426-2435. [PMID: 31168125 DOI: 10.1007/s13197-019-03713-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 01/05/2019] [Accepted: 03/08/2019] [Indexed: 11/29/2022]
Abstract
The concentration of pasteurized buffalo skim milk (PBSM) employing ultrafiltration (UF) alters the chemical composition of ultrafiltered retentate that adversely affect its proteins and salts equilibrium. Effect of stabilizing salts addition in concentrated milks or retentates was majorly dedicated to their thermal stability only. Therefore, this study was aimed to investigate the effect of disodium phosphate (DSP) addition and homogenization of 2.40 × UF retentate (0.60 protein to total solids ratio) on its ζ-potential, particle size, heat stability, turbidity, pH, viscosity and crossover temperature of storage (G') and loss (G″) modulus. Concentration of PBSM in UF process, significantly (P < 0.05) increased its percent TS, protein, fat and ash contents, but markedly decreased its lactose content. DSP addition significantly increased (P < 0.05) the ζ-potential, pH, viscosity and particle size in majority of the homogenized and non-homogenized retentates. Homogenized retentates containing 2.5 and 5% DSP exhibited Newtonian and Power law flow behaviour. However, rheological behaviour of non-homogenized retentates containing zero (control), 1 and 4% DSP was best explained by Bingham model. Further, non-homogenized retentates with 0.5, 2, 3, 5% DSP exhibited Newtonian flow, but retentates containing 6 and 7% DSP was best explained by Power law. The correlation among different attributes of DSP added non-homogenized and homogenized samples were also studied. Particle size and turbidity (r = + 0.999, P < 0.05) as well as ζ-potential and crossover temperature of G' and G″ (r = + 0.999, P < 0.05) showed positive correlation in 4% DSP added non-homogenized retentate.
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Affiliation(s)
- Handge Jyoti Uttamrao
- Dairy Technology Division, ICAR-National Dairy Research Institute, Karnal, 132001 India
| | - Ganga Sahay Meena
- Dairy Technology Division, ICAR-National Dairy Research Institute, Karnal, 132001 India
| | | | | | - Yogesh Khetra
- Dairy Technology Division, ICAR-National Dairy Research Institute, Karnal, 132001 India
| | - Neelam Upadhyay
- Dairy Technology Division, ICAR-National Dairy Research Institute, Karnal, 132001 India
| | - Ashish Kumar Singh
- Dairy Technology Division, ICAR-National Dairy Research Institute, Karnal, 132001 India
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Alteration in physicochemical, functional, rheological and reconstitution properties of milk protein concentrate powder by pH, homogenization and diafiltration. Journal of Food Science and Technology 2019; 56:1622-1630. [PMID: 30956343 DOI: 10.1007/s13197-019-03578-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 11/23/2018] [Accepted: 01/09/2019] [Indexed: 10/27/2022]
Abstract
Concentration of milk proteins by ultrafiltration (UF) and diafiltration (DF) processes during manufacturing of milk protein concentrate (MPC) powders alter their natural milk protein stabilization system. Increasing calcium and protein contents often leads to poor functional properties in MPC powders. The pH adjustment using disodium phosphate (DSP, Na2HPO4) and DF with 150 mM NaCl solution of UF retentate were hypothesized to produce desirable changes in various properties of resulted MPC powders. Addition of Na2HPO4 followed by homogenization; DF of 5 × UF retentate with 150 mM NaCl solution resulted in significant improvement in the dispersibility, wettability, flowability, solubility, heat stability, buffer index, emulsification and foaming and water and oil binding capacities of the MPC powders. The solubility of developed MPC powders was significantly higher than MPC-C powder in fresh as well as even after 90 days of storage at 25 ± 1 °C. Rheological behaviour of reconstituted MPC was best explained by Herschel Bulkley model. Scanning electron microscopy micrograph indicated that MPC powders were having smooth surfaced, intact and separate smaller particles compared to rough, larger, infused aggregates with dents in MPC-C. Technological interventions applied are easier to adopt, cost-effective and efficient in producing excellent quality MPC powders that may find applications in wide range of novel food formulations.
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28
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Patil AT, Meena GS, Upadhyay N, Khetra Y, Borad SG, Singh AK. Effect of change in pH, heat treatment and diafiltration on properties of medium protein buffalo milk protein concentrate. Journal of Food Science and Technology 2019; 56:1462-1472. [PMID: 30956326 DOI: 10.1007/s13197-019-03630-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 01/09/2019] [Accepted: 02/01/2019] [Indexed: 11/26/2022]
Abstract
The demand of milk protein concentrate (MPC) powders is continuously increasing as high protein dairy ingredients. Presence of higher calcium and casein contents; heating, ultrafiltration (UF), diafiltration (DF) and spray drying of buffalo skim milk induces undesirable changes in milk proteins that causes problem of poor solubility in MPC powders. Therefore, this investigation was aimed to study the effect of change in pH (6.8-native, 7.0-neutral), heat treatments (74 ± 1 °C/15 s, 80 ± 1 °C/5 min, 85 ± 1 °C/5 min, 90 ± 1 °C/5 min) and DF on physicochemical, functional, reconstitution and rheological properties of medium protein buffalo milk protein concentrate (MP-BMPC) powder. Based on maximum ζ-potential and heat stability, UF retentate was selected, diafiltered and spray dried to obtain MP-BMPC powder. Despite having higher protein content, MP-BMPC powder exhibited markedly better functional (solubility, wettability, viscosity and emulsion stability) properties than buffalo milk protein concentrate 60. The interstitial air content, occluded air content, loose bulk density, packed bulk density, particle density and porosity values of MP-BMPC powder were 145.97 and 112.92 mL 100 g-1 of powder, 0.21 g mL-1, 0.30 g mL-1, 0.55 g mL-1 and 65.09%. Further, its specific surface area; particle size distribution (d10, d50, d90); Sauter (D32) and DeBroukere (D43) mean values were 97.93 m2 kg-1; 34.32, 104.42, 218.58 µm; 61.27 µm and 117.99 µm. The storage modulus (G') and loss modulus (G″) crossover temperature of UF and DF retentates were ~ 57.16 °C and 55.10 °C, respectively. Rheological behaviour of UF, DF retentates and MP-BMPC solution were best explained by Herschel-Bulkley model. Fourier-transform infrared spectroscopy best described amide I, II and III regions in 1700-1400 cm-1 and 1350-1200 cm-1 wavenumber range.
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Affiliation(s)
- Ashwajit Tejram Patil
- Dairy Technology Division, ICAR- National Dairy Research Institute, Karnal, 132001 India
| | - Ganga Sahay Meena
- Dairy Technology Division, ICAR- National Dairy Research Institute, Karnal, 132001 India
| | - Neelam Upadhyay
- Dairy Technology Division, ICAR- National Dairy Research Institute, Karnal, 132001 India
| | - Yogesh Khetra
- Dairy Technology Division, ICAR- National Dairy Research Institute, Karnal, 132001 India
| | | | - Ashish Kumar Singh
- Dairy Technology Division, ICAR- National Dairy Research Institute, Karnal, 132001 India
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Effect of change in pH of skim milk and ultrafiltered/diafiltered retentates on milk protein concentrate (MPC70) powder properties. Journal of Food Science and Technology 2018; 55:3526-3537. [PMID: 30150811 DOI: 10.1007/s13197-018-3278-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 05/28/2018] [Accepted: 06/10/2018] [Indexed: 10/14/2022]
Abstract
Poor solubility of milk protein concentrate (MPC) powders are attributed to their high protein and calcium contents. Concentration of skim milk in ultrafiltration (UF) and diafiltration (DF) increased total solids, protein and mineral contents and changed pH and ζ-potential values of the retentates that leads to milk proteins destabilization in 7× UF/DF retentates. Hence, this investigation was aimed to study the effect of change in pH of skim milk (no change; native pH maintained) and DF retentates (5.85 and 7.10) with KOH, NaOH and NaH2PO4∙2H2O on physicochemical, reconstitution, functional and rheological properties of fresh MPC70 powders. MPC70-7.10 powder had significantly higher (P < 0.05) solubility, but MPC70-NaOH and MPC70-5.85 showed significantly lower solubility than control. However, after two months storage at 25 ± 1 °C, control powder had significantly lower solubility (27.78% decrease) than treated powders. These changes in pH, significantly decreased calcium content and specific surface area; significantly improved viscosity, water binding, oil binding, emulsifying, foaming and buffering capacities, L*, a*, flowability, pH (except MPC70-5.85) and packed bulk density (except MPC70-NaOH) of treated powders over control. However, rennet coagulation time of all reconstituted powder solutions was similar. Hershel Bulkley, a best fit model, efficiently explained the pseudoplastic rheological behavior of all reconstituted MPC70 powders. This investigation had established that change in pH could improve the functional properties of MPC70 powders and is a simple, cheap, compatible and easy to use approach. Treated MPC70 powders could replace control in several food formulations owing to their improved functional properties.
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Effect of pH adjustment, homogenization and diafiltration on physicochemical, reconstitution, functional and rheological properties of medium protein milk protein concentrates (MPC70). Journal of Food Science and Technology 2018; 55:1376-1386. [DOI: 10.1007/s13197-018-3052-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 01/17/2018] [Accepted: 01/18/2018] [Indexed: 10/18/2022]
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Milk protein concentrates: opportunities and challenges. Journal of Food Science and Technology 2017; 54:3010-3024. [PMID: 28974785 DOI: 10.1007/s13197-017-2796-0] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 01/26/2017] [Accepted: 08/10/2017] [Indexed: 10/19/2022]
Abstract
Poor solubility of milk protein concentrates (MPCs) is a key deterrent factor in their wider applications in the food industry as compared to other protein-rich dried products such as casein, caseinates and whey protein concentrates and isolates. Apart from the processing factors, the protein content of a MPC also decides its solubility. Solubility is a pre-requisite property of MPCs on which its other functional properties are majorly depended. Further, there is a confusion about the term MPC itself in the literature. An attempt has been made to describe MPC and provide an understanding on the manufacture of MPCs. Further, mechanisms of insolubility, factors affecting solubility of MPCs and an insight into the recently evolved strategies for overcoming the challenges related to their poor heat stability and solubility have been reviewed. Potential applications of MPC to be utilized as a novel ingredient in food industry are also outlined.
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