1
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Walkling-Ribeiro M, Jacob T, Ahrné L. Impact of pulsed electric field intensity on the cream separation efficiency from bovine milk and physico-chemical properties of the cream. Food Res Int 2024; 180:114074. [PMID: 38395577 DOI: 10.1016/j.foodres.2024.114074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 01/25/2024] [Accepted: 01/29/2024] [Indexed: 02/25/2024]
Abstract
Low-temperature (9-12 °C) pulsed electric field (PEF) was investigated in milk before cream separation at different intensities (9-27 kV/cm, 66 μs, 16-28 kJ/L) regarding its potential to render processing more sustainable, retain a high physico-chemical quality, enhance functional properties, and gently modify the structure of the milk fat globule membrane (MFGM). Cream volume per L milk were most efficiently increased by 31 % at the lowest PEF intensity in comparison to untreated milk and cream (P < 0.05). Untreated and PEF-treated milk and obtained cream were assessed with compositional (fat, protein, casein, lactose, and total solids content) and particle size distribution analyses, showing no significant differences (P ≥ 0.05) and, thus, indicating retention of 'native-like' product quality. Overrun and stability of cream, whipped for 20 and 60 s at 15000 rpm using a high-shear mixer, were improved most notably by the lowest and the highest PEF intensities, achieving up to 69 % enlarged overrun and up to 22 % higher stability, respectively (P < 0.05), than in untreated whipped cream. Protein component analyses for milk and cream were carried out by sodium dodecylsulphate-polyacrylamide gel electrophoresis (SDS-PAGE). Noticeable differences between untreated and PEF-treated milk were not observed, but the SDS-PAGE results for cream showed noticeably different bands for some of the protein components, indicating structural changes in MFGM-, whey-, and phospho-proteins due to PEF and/or separator processing effects. More intense bands of xanthine oxidase, xanthine dehydrogenase, butyrophilin, bovine serum albumine, adipophilin (ADPH), and glycoproteins PAS6/7 were observed specifically at 21 kV/cm. Gentle electroporation of both MFGM layers by PEF was determined based on the changes in MFGM monolayer components, such as ADPH and PAS 6/7, exhibiting intensified bands. PEF intensity-dependent impact on the structure of MFGM and casein, leading to a reconfiguration of the cream matrix due to different structuring interactions among proteins, among milk fat globules, and between fat and protein components, was suggested. Overall, low-temperature PEF applied at different intensities showed great potential for gentle, efficient, and functional properties-tailored dairy processing and may also enable effective extraction of highly bioactive ingredients from dairy sources.
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Affiliation(s)
- Markus Walkling-Ribeiro
- Department of Food Science, University of Copenhagen, Rolighedsvej 26, 1958 Frederiksberg C, Denmark.
| | - Thomas Jacob
- Department of Food Science, University of Copenhagen, Rolighedsvej 26, 1958 Frederiksberg C, Denmark; Institut Agro Dijon, 26 Boulevard Dr Petitjean, 21000 Dijon, France
| | - Lilia Ahrné
- Department of Food Science, University of Copenhagen, Rolighedsvej 26, 1958 Frederiksberg C, Denmark.
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2
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Chow CY, Rodríguez RM, Riantiningtyas RR, Munk MB, Ahrné L, Bredie WLP. Layered food designs to create appetizing desserts: A proof-of-concept study. Food Res Int 2023; 170:112955. [PMID: 37316047 DOI: 10.1016/j.foodres.2023.112955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 04/30/2023] [Accepted: 05/10/2023] [Indexed: 06/16/2023]
Abstract
Creating layers in foods is a culinary technique commonly used to diversify sensory experiences, but it has not been reported scientifically on its effect on hedonic and appetitive responses. This study aimed to investigate the use of dynamic sensory contrasts in layered foods to stimulate liking and appetite, using lemon mousse as a model. A sensory panel evaluated the perceived sour taste intensity of lemon mousses acidified by various amounts of citric acid. Bilayer lemon mousses with unequal distribution of citric acid across the layers to deliver higher levels of intraoral sensory contrast were developed and evaluated. A consumer panel evaluated the liking and desire to eat lemon mousses (n = 66), and a selection of samples was further investigated in an ad libitum food intake setting (n = 30). In the consumer study, bilayer lemon mousses with a layer of low acidity (0.35% citric acid w/w) on top and higher acidity (1.58 or 2.8% citric acid w/w) at the bottom showed consistently higher liking and desire scores than their corresponding counterparts with identical acid levels equally distributed in a monolayer. In the ad libitum setting, the bilayer mousse (top: 0.35; bottom: 1.58% citric acid w/w) had a significant 13% increase in intake compared to its monolayer counterpart. Modulating sensory properties across food layers with different configurations and layer compositions can be further explored as a tool to design appetizing foods for consumers at risk of undernutrition.
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Affiliation(s)
- Ching Yue Chow
- Department of Food Science, Section for Food Design and Consumer Behaviour, University of Copenhagen, Rolighedsvej, 26, 1958 Frederiksberg C, Denmark
| | - Raquel M Rodríguez
- Department of Food Science, Section for Food Design and Consumer Behaviour, University of Copenhagen, Rolighedsvej, 26, 1958 Frederiksberg C, Denmark
| | - Reisya R Riantiningtyas
- Department of Food Science, Section for Food Design and Consumer Behaviour, University of Copenhagen, Rolighedsvej, 26, 1958 Frederiksberg C, Denmark
| | - Merete B Munk
- Department of Food Science, Section for Food Design and Consumer Behaviour, University of Copenhagen, Rolighedsvej, 26, 1958 Frederiksberg C, Denmark
| | - Lilia Ahrné
- Department of Food Science, Section for Food Design and Consumer Behaviour, University of Copenhagen, Rolighedsvej, 26, 1958 Frederiksberg C, Denmark
| | - Wender L P Bredie
- Department of Food Science, Section for Food Design and Consumer Behaviour, University of Copenhagen, Rolighedsvej, 26, 1958 Frederiksberg C, Denmark.
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3
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Katrine Laursen A, Bue Dyrnø S, Steven Mikkelsen K, Pawel Czaja T, Albert Maria Rovers T, Ipsen R, Ahrné L. Effect of coagulation temperature on cooking integrity of heat and acid-induced milk gels. Food Res Int 2023; 169:112846. [PMID: 37254420 DOI: 10.1016/j.foodres.2023.112846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 04/03/2023] [Accepted: 04/14/2023] [Indexed: 06/01/2023]
Abstract
Heat and acid-induced milk gels do not melt or flow upon heating and thus show great potential as a dairy-based protein source for cooking, e.g. for stews. Understanding how processing, e.g. acidification, affects the cooking behavior of these gels is therefore of great industrial interest. The cooking integrity of gels produced by rapidly acidifying milk using citric acid at temperatures of 60, 75, and 90 °C, was determined by analyzing composition, texture, and spatial water distribution before and after cooking. Increasing the acidification temperature from 60 to75 °C resulted in a significant reduction of yield, due to decreased moisture content of the gels. With increasing content of solids, the gels grew harder and denser, as observed by texture profile analysis and low-field Nuclear Magnetic Resonance. Upon cooking the 60 °C gel lost a significant amount of moisture, due to the contraction of the porous protein network. The more compact gels, prepared at 75 and 90 °C, did not lose mass indicating good cooking integrity, i.e. a gel that keeps its structure during cooking. Acidification temperature thus greatly influenced cooking integrity. The effect was mainly ascribed to the density of the gel texture, a result of the speed of protein aggregation and calcium recovery.
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Affiliation(s)
- Anne Katrine Laursen
- Department of Food Science, University of Copenhagen, Rolighedsvej 30, DK-1958 Frederiksberg C, Denmark
| | - Steffan Bue Dyrnø
- Department of Food Science, University of Copenhagen, Rolighedsvej 30, DK-1958 Frederiksberg C, Denmark
| | - Kim Steven Mikkelsen
- Department of Food Science, University of Copenhagen, Rolighedsvej 30, DK-1958 Frederiksberg C, Denmark
| | - Tomasz Pawel Czaja
- Department of Food Science, University of Copenhagen, Rolighedsvej 30, DK-1958 Frederiksberg C, Denmark
| | | | - Richard Ipsen
- Department of Food Science, University of Copenhagen, Rolighedsvej 30, DK-1958 Frederiksberg C, Denmark
| | - Lilia Ahrné
- Department of Food Science, University of Copenhagen, Rolighedsvej 30, DK-1958 Frederiksberg C, Denmark.
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4
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Cavalcante KN, Feitor J, Morais ST, Nassu RT, Ahrné L, Cardoso DR. Impact of UV-C pretreatment on β-lactoglobulin hydrolysis by trypsin: production and bioavailability of bioactive peptides. Int Dairy J 2023. [DOI: 10.1016/j.idairyj.2023.105650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
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5
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Czaja TP, Vickovic D, Pedersen SJ, Hougaard AB, Ahrné L. Spectroscopic characterisation of acidified milk powders. Int Dairy J 2023. [DOI: 10.1016/j.idairyj.2023.105664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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6
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Vickovic D, Czaja TP, Gaiani C, Pedersen SJ, Ahrné L, Hougaard AB. The effect of feed formulation on surface composition of powders and wall deposition during spray drying of acidified dairy products. POWDER TECHNOL 2023. [DOI: 10.1016/j.powtec.2023.118297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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7
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Vickovic D, Pedersen SJ, Ahrné L, Hougaard AB. Effects of lactic acid concentration and spray drying conditions on stickiness of acidified skim milk powder. INT J DAIRY TECHNOL 2022. [DOI: 10.1111/1471-0307.12932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Dolores Vickovic
- Department of Food Science, Faculty of Science Copenhagen University Rolighedsvej 26 1958 Copenhagen Denmark
- GEA Process Engineering A/S Gladsaxevej 305 2860 Soeborg Denmark
| | | | - Lilia Ahrné
- Department of Food Science, Faculty of Science Copenhagen University Rolighedsvej 26 1958 Copenhagen Denmark
| | - Anni Bygvrå Hougaard
- Department of Food Science, Faculty of Science Copenhagen University Rolighedsvej 26 1958 Copenhagen Denmark
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8
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Merkel A, Vavro M, Čopák L, Dvořák L, Ahrné L, Ruchti C. Lactose Mother Liquor Stream Valorisation Using an Effective Electrodialytic Process. Membranes (Basel) 2022; 13:29. [PMID: 36676836 PMCID: PMC9860800 DOI: 10.3390/membranes13010029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/29/2022] [Accepted: 12/20/2022] [Indexed: 06/17/2023]
Abstract
The integrated electrodialysis (ED) process supports valorisation of a lactose-rich side stream from the dairy industry, creating an important source of milk sugar used in various branches of the industry. This work focuses on the optimization of the downstream processes before the crystallization of lactose. The process line includes a pre-treatment and desalination by ED of the industrial waste solution of the lactose mother liquor (LML). The LML was diluted to 25% total solids to overcome hydraulic issues with the ED desalination process. Two different levels of electrical conductivity reduction (70% and 90%) of the LML solutions were applied to decrease the mineral components and organic acids of the LML samples. The ED performance parameters such as ash transfer rate (J), the specific capacity (CF) of the ED and specific electric energy consumption (E) were determined and the influence of the LML solution on the monopolar ion-exchange membranes has been investigated. A higher degree of desalination is associated with higher electric energy consumption (by 50%) and lower specific capacity (by 40%). A noticeable decrease (by 12.8%) in the resistance of the anion exchange membranes was measured after the trials whereas the resistance of the cation exchange membranes remained practically unchanged. Any deposition of the alkaline earth metals on the membrane surface was not observed.
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Affiliation(s)
- Arthur Merkel
- MemBrain s.r.o. (Membrane Innovation Centre), Pod Vinicí 87, 471 27 Stráž pod Ralskem, Czech Republic
- Department of Food Science, University of Copenhagen, Rolighedsvej 26, 1958 Frederiksberg, Denmark
| | - Matej Vavro
- MemBrain s.r.o. (Membrane Innovation Centre), Pod Vinicí 87, 471 27 Stráž pod Ralskem, Czech Republic
| | - Ladislav Čopák
- MemBrain s.r.o. (Membrane Innovation Centre), Pod Vinicí 87, 471 27 Stráž pod Ralskem, Czech Republic
| | - Lukáš Dvořák
- Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentská 2, 461 17 Liberec, Czech Republic
| | - Lilia Ahrné
- Department of Food Science, University of Copenhagen, Rolighedsvej 26, 1958 Frederiksberg, Denmark
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9
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D'Oria G, Gunes DZ, Lequeux F, Hartmann C, Limbach HJ, Ahrné L. Fluid gels’ dual behaviour as granular matter and colloidal glass. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.108401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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10
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Feng R, van den Berg FW, Lillevang SK, Ahrné L. High shear cooking extrusion to create fibrous mozzarella cheese from renneted and cultured curd. Food Res Int 2022; 157:111192. [DOI: 10.1016/j.foodres.2022.111192] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 03/22/2022] [Accepted: 03/24/2022] [Indexed: 11/25/2022]
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11
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Vargas-Bello-Pérez E, Pedersen NC, Khushvakov J, Ye Y, Dhakal R, Hansen HH, Ahrné L, Khakimov B. Effect of Supplementing Dairy Goat Diets With Rapeseed Oil or Sunflower Oil on Performance, Milk Composition, Milk Fatty Acid Profile, and in vitro Fermentation Kinetics. Front Vet Sci 2022; 9:899314. [PMID: 35782564 PMCID: PMC9244143 DOI: 10.3389/fvets.2022.899314] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 04/21/2022] [Indexed: 11/13/2022] Open
Abstract
The aim of this study was to determine the effect of supplementing dairy goat diets with rapeseed oil and sunflower oil on performance, milk composition, milk fatty acid profile, and in vitro fermentation kinetics. Nine Danish Landrace goats with 42 ± 5 days in milk were allocated to three treatment groups for 42 days. Animals received a basal diet, formulated with 85:15 forage:concentrate ratio, and the basal diet was supplemented with either rapeseed oil or sunflower oil at 4% of dry matter. Goat milk was sampled on days 14, 21, and 42. Milk composition was similar between treatments. From day 14 to day 42, milk yield increased (1.03 vs. 1.34 kg/d), while milk fat (2.72 vs. 1.82 g/d) and total solids (11.2 vs. 9.14 %) were reduced. Compared to control and rapeseed oil, sunflower decreased (P < 0.05) C4:0 (1.56, and 1.67 vs. 1.36 g/100 g) and both oils decreased (P < 0.05) C18:3n3 (0.60 vs. 0.20 and 0.10 g/100g). Rapeseed oil increased (P < 0.05) C18:2 cis9, trans11 compared to control and sunflower oil (0.37 vs. 0.13 and 0.19 g/100 g). Untargeted milk foodomics revealed slightly elevated (P < 0.05) gluconic acid and decreased hippuric acid (P < 0.05) in the milk of oil-fed goats compared to control. In vitro dry matter degradation (63.2 ± 0.02 %) was not affected by dietary treatments, while individual volatile fatty acid proportions, total volatile fatty acids (35.7 ± 2.44 mmol/l), CO2 (18.6 ± 1.15 mol), and CH4 (11.6 ± 1.16 mol) were not affected by dietary treatments. Sunflower oil and rapeseed oil decreased (P < 0.05) total gas production at 24 and 48 h compared with control. Overall, the use of sunflower oil or rapeseed oil at 4% DM inclusion did not compromise animal performance and milk composition.
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Affiliation(s)
- Einar Vargas-Bello-Pérez
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg, Denmark
- *Correspondence: Einar Vargas-Bello-Pérez
| | - Nanna Camilla Pedersen
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg, Denmark
| | - Jaloliddin Khushvakov
- Department of Food Science, Faculty of Science, University of Copenhagen, Frederiksberg, Denmark
- Institute of Chemistry and Biotechnology, Zurich University of Applied Sciences, Winterthur, Switzerland
| | - Yongxin Ye
- Department of Food Science, Faculty of Science, University of Copenhagen, Frederiksberg, Denmark
| | - Rajan Dhakal
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg, Denmark
| | - Hanne H. Hansen
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg, Denmark
| | - Lilia Ahrné
- Department of Food Science, Faculty of Science, University of Copenhagen, Frederiksberg, Denmark
| | - Bekzod Khakimov
- Department of Food Science, Faculty of Science, University of Copenhagen, Frederiksberg, Denmark
- Bekzod Khakimov
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12
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Vargas-Bello-Pérez E, Khushvakov J, Ye Y, Pedersen NC, Hansen HH, Ahrné L, Khakimov B. Goat Milk Foodomics. Dietary Supplementation of Sunflower Oil and Rapeseed Oil Modify Milk Amino Acid and Organic Acid Profiles in Dairy Goats. Front Vet Sci 2022; 9:837229. [PMID: 35400103 PMCID: PMC8987497 DOI: 10.3389/fvets.2022.837229] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 02/08/2022] [Indexed: 12/13/2022] Open
Abstract
The dietary supplementation of vegetable oils is known to improve the dietary energy density as well as milk fatty acid profile; however, the impacts on the milk foodome is largely unknown. This study investigated the effect of two different sources of unsaturated fatty acids, rapeseed oil and sunflower oil, as a feeding supplement on the milk foodome from dairy goats. Nine Danish Landrace goats at 42 ± 5 days in milk were allocated to three treatment groups for 42 days with three animals per group. A control group received a basal diet made of forage and concentrate at an 85:15 ratio. On top of the basal diet, the second and third groups received rapeseed oil or sunflower oil supplements at 4% of dry matter, respectively. Goat milk was sampled on days 14, 21, and 42. The milk foodome was measured using gas chromatography–mass spectrometry and proton nuclear magnetic resonance spectroscopy. The milk levels of 2-hydroxyisovaleric acid, oxaloacetic acid, and taurine were higher in the milk from goats fed with sunflower oil compared to the control group. More glucose-1-phosphate was found in the milk from goats fed with rapeseed oil compared to the control group. Amino acids, valine and tyrosine, and 2-hydroxyisovaleric acid and oxaloacetic acid were higher in the sunflower group compared to the rapeseed group, while the milk from the rapeseed-fed goats had greater levels of ethanol and 2-oxoglutaric acid compared to the sunflower group. Thus, results show that foodomics is suitable for studying how milk chemistry changes as a function of feeding regime.
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Affiliation(s)
- Einar Vargas-Bello-Pérez
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg, Denmark
- *Correspondence: Einar Vargas-Bello-Pérez
| | - Jaloliddin Khushvakov
- Department of Food Science, Faculty of Science, University of Copenhagen, Frederiksberg, Denmark
- Institute of Chemistry and Biotechnology, School of Life Sciences and Facility Management, Zurich University of Applied Sciences, Wädenswil, Switzerland
| | - Yongxin Ye
- Department of Food Science, Faculty of Science, University of Copenhagen, Frederiksberg, Denmark
| | - Nanna Camilla Pedersen
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg, Denmark
| | - Hanne Helene Hansen
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg, Denmark
| | - Lilia Ahrné
- Department of Food Science, Faculty of Science, University of Copenhagen, Frederiksberg, Denmark
| | - Bekzod Khakimov
- Department of Food Science, Faculty of Science, University of Copenhagen, Frederiksberg, Denmark
- Bekzod Khakimov
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13
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Duncan J, DeClerck F, Báldi A, Treyer S, Aschemann-Witzel J, Cuhls K, Ahrné L, Bisoffi S, Grando S, Guobys L, Kohl J, Hansen HO, Hudson RL, Lutzeyer HJ, Nielsen VH, Ruiz B, Saggau E, Valceschini E, Siebielec G, Brunori G. Democratic directionality for transformative food systems research. Nat Food 2022; 3:183-186. [PMID: 37117640 DOI: 10.1038/s43016-022-00479-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/30/2023]
Affiliation(s)
- Jessica Duncan
- Rural Sociology Group, Wageningen University, Wageningen, the Netherlands.
| | - Fabrice DeClerck
- Alliance of Bioversity & CIAT, Montpellier, France
- EAT, Oslo, Norway
| | - András Báldi
- Centre for Ecological Research, Institute of Ecology and Botany, Vácrátót, Hungary
| | | | | | - Kerstin Cuhls
- Fraunhofer Institute for Systems and Innovation Research, Karlsruhe, Germany
- University of Heidelberg, Heidelberg, Germany
| | - Lilia Ahrné
- Department of Food Science, University of Copenhagen, Copenhagen, Denmark
| | | | - Stefano Grando
- Ministry of Agricultural, Food and Forestry Policies, Rome, Italy
- SCAR Foresight Working Group, Brussels, Belgium
| | | | | | - Henning Otte Hansen
- Department of Food and Resource Economics, University of Copenhagen, Copenhagen, Denmark
| | | | | | - Vivi Hunnicke Nielsen
- SCAR Foresight Working Group, Brussels, Belgium
- Danish Centre for Food and Agriculture, Aarhus University, Foulum, Denmark
| | | | - Elke Saggau
- SCAR Foresight Working Group, Brussels, Belgium
| | | | - Grzegorz Siebielec
- Department of Soil Science Erosion and Land Protection, Institute of Soil Science and Plant Cultivation State Research Institute, Puławy, Poland
| | - Gianluca Brunori
- Department of Agriculture, Food and Environment, University of Pisa, Pisa, Italy
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14
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Christiansen MV, Dave A, Skibsted LH, Ahrné L. Functional properties of skim milk concentrates produced by reverse osmosis filtration and reconstituted commercial powders. Int Dairy J 2022. [DOI: 10.1016/j.idairyj.2021.105225] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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15
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Feng R, Lillevang SK, Ahrné L. Effect of Water Temperature and Time during Heating on Mass Loss and Rheology of Cheese Curds. Foods 2021; 10:foods10112881. [PMID: 34829162 PMCID: PMC8623044 DOI: 10.3390/foods10112881] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 11/12/2021] [Accepted: 11/16/2021] [Indexed: 11/29/2022] Open
Abstract
During the manufacturing of mozzarella, cheese curds are heated to the desired stretching temperature traditionally by immersion in water, which influences the curd characteristics before stretching, and consequently the final cheese properties. In this study, cheese curds were immersed in hot water at 60, 70, 80 and 90 °C up to 16 min and the kinetics of mass loss and changes of rheological properties were investigated. The total mass of cooked curds increased up to 10% during the first minute, independent of the temperature, as a consequence of water retention. Fat was the main component lost into the cooking water (<3.5% w/w), while the concentration of protein increased up to 3.4% (w/w) compared to uncooked curds due to the loss of other components. Curds macrostructure during cooking showed that curds fully fuse at 70 °C/4 min; 80 °C/2 min and 90 °C/1 min, while after intensive cooking (>8 min) they lost the ability to fuse as a consequence of protein contraction and fat loss. Storage modulus, representing the curd strength, was dependent on cooking temperature and positively, and linearly, correlated with curd protein content (21.7–24.9%). This work shows the potential to modify curd composition and structure, which will have consequences for further processing and final product properties.
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Affiliation(s)
- Ran Feng
- Department of Food Science, University of Copenhagen, Rolighedsvej 26, 1958 Frederiksberg, Denmark;
| | | | - Lilia Ahrné
- Department of Food Science, University of Copenhagen, Rolighedsvej 26, 1958 Frederiksberg, Denmark;
- Correspondence:
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16
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Chow CY, Thybo CD, Sager VF, Riantiningtyas RR, Bredie WL, Ahrné L. Printability, stability and sensory properties of protein-enriched 3D-printed lemon mousse for personalised in-between meals. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2021.106943] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Feng R, Barjon S, van den Berg FW, Lillevang SK, Ahrné L. Effect of residence time in the cooker-stretcher on mozzarella cheese composition, structure and functionality. J FOOD ENG 2021. [DOI: 10.1016/j.jfoodeng.2021.110690] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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19
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Orlien V, Aalaei K, Poojary MM, Nielsen DS, Ahrné L, Carrascal JR. Effect of processing on in vitro digestibility (IVPD) of food proteins. Crit Rev Food Sci Nutr 2021; 63:2790-2839. [PMID: 34590513 DOI: 10.1080/10408398.2021.1980763] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Proteins are important macronutrients for the human body to grow and function throughout life. Although proteins are found in most foods, their very dissimilar digestibility must be taking into consideration when addressing the nutritional composition of a diet. This review presents a comprehensive summary of the in vitro digestibility of proteins from plants, milk, muscle, and egg. It is evident from this work that protein digestibility greatly varies among foods, this variability being dependent not only upon the protein source, but also the food matrix and the molecular interactions between proteins and other food components (food formulation), as well as the conditions during food processing and storage. Different approaches have been applied to assess in vitro protein digestibility (IVPD), varying in both the enzyme assay and quantification method used. In general, animal proteins tend to show higher IVPD. Harsh technological treatments tend to reduce IVPD, except for plant proteins, in which thermal degradation of anti-nutritional compounds results in improved IVPD. However, in order to improve the current knowledge about protein digestibility there is a vital need for understanding dependency on a protein source, molecular interaction, processing and formulation and relationships between. Such knowledge can be used to develop new food products with enhanced protein bioaccessibility.
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Affiliation(s)
- Vibeke Orlien
- Department of Food Science, University of Copenhagen, Frederiksberg C, Denmark
| | - Kataneh Aalaei
- Department of Food Science, University of Copenhagen, Frederiksberg C, Denmark
| | - Mahesha M Poojary
- Department of Food Science, University of Copenhagen, Frederiksberg C, Denmark
| | - Dennis S Nielsen
- Department of Food Science, University of Copenhagen, Frederiksberg C, Denmark
| | - Lilia Ahrné
- Department of Food Science, University of Copenhagen, Frederiksberg C, Denmark
| | - Jorge Ruiz Carrascal
- Research Institute of Meat and Meat Products (IproCar), University of Extremadura, Cáceres, Spain
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20
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Riantiningtyas RR, Sager VF, Chow CY, Thybo CD, Bredie WLP, Ahrné L. 3D printing of a high protein yoghurt-based gel: Effect of protein enrichment and gelatine on physical and sensory properties. Food Res Int 2021; 147:110517. [PMID: 34399495 DOI: 10.1016/j.foodres.2021.110517] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 05/27/2021] [Accepted: 06/09/2021] [Indexed: 11/19/2022]
Abstract
The potential application of 3D printing technology in creating protein-rich desserts with multisensory design was investigated. Yoghurt-gel inks were formulated by varying the concentration of gelatine and whey protein isolate (WPI). Assessment of rheological and textural properties prior to printing, showed that an increase of gelatine concentration from 7.5 to 12.5% w/w increased the yield stress, storage modulus, loss modulus, firmness, and resilience of yoghurt gels. Addition of 12% WPI reduced these effects; creating softer gels with reduced resilience. However, these gels showed stable shape after printing, especially in formulations with higher gelatine concentrations. The changes in textural properties caused by the extrusion process need to be considered when designing yoghurt gels, as a significant reduction in firmness and resilience and an increase in adhesiveness were observed after 3D printing. The more stable and well-shaped 3D printed yoghurt gels were obtained by the combined effect of WPI and gelatine which provided a good balance of appearance, taste, flavour, and mouthfeel attributes evaluated by a trained sensory panel. A consumer study performed with thirty healthy adults showed the potential to improve sensory acceptance through the creation of multisensory layered design.
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Affiliation(s)
| | - Valeska F Sager
- Department of Food Science, University of Copenhagen, Rolighedsvej 30, DK-1958 Frederiksberg C, Denmark
| | - Ching Yue Chow
- Department of Food Science, University of Copenhagen, Rolighedsvej 30, DK-1958 Frederiksberg C, Denmark
| | - Camilla D Thybo
- Department of Food Science, University of Copenhagen, Rolighedsvej 30, DK-1958 Frederiksberg C, Denmark
| | - Wender L P Bredie
- Department of Food Science, University of Copenhagen, Rolighedsvej 30, DK-1958 Frederiksberg C, Denmark
| | - Lilia Ahrné
- Department of Food Science, University of Copenhagen, Rolighedsvej 30, DK-1958 Frederiksberg C, Denmark.
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21
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Christiansen MV, Smith GN, Brok ES, Schmiele M, Ahrné L. The relationship between ultra-small-angle X-ray scattering and viscosity measurements of casein micelles in skim milk concentrates. Food Res Int 2021; 147:110451. [PMID: 34399453 DOI: 10.1016/j.foodres.2021.110451] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 04/26/2021] [Accepted: 05/21/2021] [Indexed: 11/16/2022]
Abstract
Skim milk concentrates have important applications in the dairy industry, often as intermediate ingredients. Concentration of skim milk by reverse osmosis membrane filtration induces water removal, which reduces the free volume between the colloidal components, in particular the casein micelles. Thermal treatment before or after concentration impacts the morphology of casein micelles. These changes affect the flow behavior and viscosity, but the consequences for supermicellar structure have not been elucidated. In the present study, skim milk concentrates with different total solid contents from 8.7% (control) up to 22.8% (w/w), prepared by reverse osmosis membrane filtration of non-heated and pasteurized skim milk, were heat treated at 75 °C for 18 s, and compared with non-heated concentrates. The structure of the concentrates was studied using Ultra Small Angle X-ray Scattering (USAXS), and the viscosity of concentrates was measured. The USAXS intensity I(q) was fitted at small and intermediate q-regions (0.0005 < q < 0.003 Å-1 and 0.0035 < q < 0.03 Å-1, respectively) with a power law. The value of the power law exponent was used to assess the heat- and concentration-induced aggregation of the milk solids and correlate it with the apparent viscosity. The results showed that increased viscosity of skim milk concentrates, due to water removal and heat-load, can be explained by increased aggregation of the casein micelles into elongated aggregates and increased smoothening of the casein micelle surface.
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Affiliation(s)
- Morten V Christiansen
- Department of Food Science, University of Copenhagen, Rolighedsvej 26, 1958 Frederiksberg C, Denmark
| | - Gregory N Smith
- ISIS Neutron Muon Source, Science and Technology Facilities Council, Rutherford Appleton Laboratory, Didcot OX11 0QX, United Kingdom
| | - Erik S Brok
- Niels Bohr Institute, University of Copenhagen, Universitetsparken 5, 2100 København Ø, Denmark
| | - Martin Schmiele
- Niels Bohr Institute, University of Copenhagen, Universitetsparken 5, 2100 København Ø, Denmark
| | - Lilia Ahrné
- Department of Food Science, University of Copenhagen, Rolighedsvej 26, 1958 Frederiksberg C, Denmark.
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22
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Yang S, Tyler AII, Ahrné L, Kirkensgaard JJK. Skimmed milk structural dynamics during high hydrostatic pressure processing from in situ SAXS. Food Res Int 2021; 147:110527. [PMID: 34399505 DOI: 10.1016/j.foodres.2021.110527] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 05/27/2021] [Accepted: 06/11/2021] [Indexed: 10/21/2022]
Abstract
Understanding the changes in milk at a nanostructural level during high-pressure (HP) treatment can provide new insights to improve the safety and functionality of dairy products. In this study, modifications of milk nanostructure during HP were studied in situ by small-angle X-ray scattering (SAXS). Skimmed milk was pressurized to 200 or 400 MPa at 25, 40 or 60 °C and held for 5 or 10 min, and the effect of single- and double-HP treatment was also investigated. In most cases, the SAXS patterns of skimmed milk are well fitted with a three-population model: a low-q micellar feature reflecting the overall micelle size (~0.002 Å-1), a small casein cluster contribution at intermediate-q (around 0.01 Å-1) and a high-q (0.08-0.1 Å-1) population of milk protein inhomogeneities. However, at 60 °C a scattering feature of colloidal calcium phosphate (CCP) which is normally only seen with neutron scattering, was observed at 0.035 Å-1. By varying the pressure, temperature, holding and depressurization times, as well as performing cycled pressure treatment, we followed the dynamic structural changes in the skimmed milk protein structure at different length scales, which depending on the processing conditions, were irreversible or reversible within the timescales investigated. Pressure and temperature of the HP process have major effects, not only on size of casein micelles, but also on "protein inhomogeneities" within their internal structure. Under HP, increasing processing time at 200 MPa induced re-association of the micelles, however, the changes in the internal structure were more pressure-dependent than time dependent.
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Affiliation(s)
- Shuailing Yang
- Department of Food Science, University of Copenhagen, DK-1958 Frederiksberg C, Denmark
| | - Arwen I I Tyler
- School of Food Science and Nutrition, University of Leeds, LS2 9JT Leeds, United Kingdom
| | - Lilia Ahrné
- Department of Food Science, University of Copenhagen, DK-1958 Frederiksberg C, Denmark.
| | - Jacob J K Kirkensgaard
- Department of Food Science, University of Copenhagen, DK-1958 Frederiksberg C, Denmark; Niels Bohr Institute, University of Copenhagen, DK-2100 København Ø, Denmark.
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23
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Aydogdu T, Ho QT, Ahrné L, O'Mahony JA, McCarthy NA. The influence of milk minerals and lactose on heat stability and age-thickening of milk protein concentrate systems. Int Dairy J 2021. [DOI: 10.1016/j.idairyj.2021.105037] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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24
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Nielsen EN, Merkel A, Yazdi SR, Ahrné L. The effect of acid whey composition on the removal of calcium and lactate during electrodialysis. Int Dairy J 2021. [DOI: 10.1016/j.idairyj.2021.104985] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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25
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Aalaei K, Khakimov B, De Gobba C, Ahrné L. Gastric Digestion of Milk Proteins in Adult and Elderly: Effect of High-Pressure Processing. Foods 2021; 10:786. [PMID: 33917309 PMCID: PMC8067359 DOI: 10.3390/foods10040786] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 03/19/2021] [Accepted: 03/29/2021] [Indexed: 12/19/2022] Open
Abstract
Reduced physiological capability of the human gastrointestinal tract with increasing age has recently attracted considerable attention to the potential of novel technologies to modify food digestion. Thus, the aim of this study was to investigate gastric digestion of milk proteins after application of high-pressure processing (HPP) at 400 MPa 15 min, 600 MPa 5 min and 600 MPa 15 min using two static in vitro models of adults (INFOGEST) and the elderly in comparison to a fresh untreated raw milk. Peptides distribution classified based on the number of amino acids (AA) (<10, 11-15, 16-20, 21-30, >30 AA) were investigated after 0, 5, 10 and 30 min of digestion using LC-MS and multivariate data analysis. Our results show significantly less efficient protein digestion of all investigated milks in the elderly model indicated by higher percentages of longer peptides during digestion, except for the HPP milk 400 MPa 15 min, which indicated an improved and comparable digestion in the elderly as in the adult model. Furthermore, increasing the pressurization time at 600 MPa did not have a significant effect on the peptides profile during the digestion. More efficient digestion of whey proteins in HPP milks, with the majority of peptides in the 16-20 AA range, compared to fresh milk was also noticed. According to the findings of this study, HPP at 400 MPa 15 min showed the most efficient digestion of major milk proteins and thus may be considered a suitable process to improve bioaccessibility of milk proteins, especially in products intended for the elderly.
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Affiliation(s)
- Kataneh Aalaei
- Department of Food Science, University of Copenhagen, Rolighedsvej 26, DK-1958 Frederiksberg, Denmark; (B.K.); (C.D.G.); (L.A.)
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26
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Bisoffi S, Ahrné L, Aschemann-Witzel J, Báldi A, Cuhls K, DeClerck F, Duncan J, Hansen HO, Hudson RL, Kohl J, Ruiz B, Siebielec G, Treyer S, Brunori G. COVID-19 and Sustainable Food Systems: What Should We Learn Before the Next Emergency. Front Sustain Food Syst 2021. [DOI: 10.3389/fsufs.2021.650987] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Three key transitions leading to a “safe and just” operating space, with a focus on food systems, emerged during the development of a Foresight study promoted by SCAR (Standing Committee on Agricultural Research1): (a) sustainable and healthy diets for all; (b) full circularity in the use of resources; (c) diversity as a key component of stable systems. As consequence of COVID-19, food emerged again as a central element of life, along with health, after decades in which food security was taken for granted, at least in most developed countries. The COVID-19 outbreak offered the opportunity for a reflection on the importance of resilience in emergencies. Sustainable and healthy diets for all, was shown, during the pandemic, to depend much more on social and economic conditions than on technical aspects of food production and processing. Agriculture and the agro-industry have now a potential to absorb, at least temporarily, workers laid out in other sectors; the pandemic could be an opportunity to re-think and re-value labor relationships in the sector as well as local productions and supply chains. A full circularity in food systems also would benefit from stronger links established at the territorial level and increase the attention on the quality of the environment, leading to the adoption of benign practices, regenerating rather than impoverishing natural resources. Diversity is a key component of a resilient system, both in the biophysical sphere and in the social sphere: new business models, new knowledge-sharing networks, new markets. The three transitions would operate in synergy and contribute to the resilience of the whole food system and its preparation for a possible next emergency. Science can support policy making; however, science needs to be better embedded in society, to have a clear direction toward the grand challenges, to address the social, economic, behavioral spheres, to aim clearly at the common good. We need to re-think the conundrum between competition and cooperation in research, devising ways to boost the latter without sacrificing excellence. We need to improve the way knowledge is generated and shared and we need to ensure that information is accessible and unbiased by vested interests.
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27
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Merkel A, Fárová H, Voropaeva D, Yaroslavtsev A, Ahrné L, Yazdi SR. The impact of high effective electrodialytic desalination on acid whey stream at high temperature. Int Dairy J 2021. [DOI: 10.1016/j.idairyj.2020.104921] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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28
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Aalaei K, Khakimov B, De Gobba C, Ahrné L. Digestion patterns of proteins in pasteurized and ultra-high temperature milk using in vitro gastric models of adult and elderly. J FOOD ENG 2021. [DOI: 10.1016/j.jfoodeng.2020.110305] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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29
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Sager VF, Munk MB, Hansen MS, Bredie WLP, Ahrné L. Formulation of Heat-Induced Whey Protein Gels for Extrusion-Based 3D Printing. Foods 2020; 10:E8. [PMID: 33375171 PMCID: PMC7822201 DOI: 10.3390/foods10010008] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 12/17/2020] [Accepted: 12/18/2020] [Indexed: 11/16/2022] Open
Abstract
This study investigated the extrusion-based 3D printability of heat-induced whey protein gels as protein rich food inks. In particular, the effects of ionic strength by the addition of NaCl (0-250 mM), protein content (10%, 15%, 20%), fat content (0%, 10%), and partial substitution of whey protein isolate (WPI) with microparticulated whey protein (MWP) or micellar casein isolate (MCI) on printability were assessed. Texture analysis, specifically Young's modulus, rheological measurements including yield stress, and creep-recovery behavior were used to characterize the gels. Modifications of the formulation in terms of ionic strength, increased protein content, and the formation of emulsion gels were insufficient to maintain a continuous extrusion process or shape stability after printing. However, the substitution of WPI with MWP created more viscoeleastic gels with improved printability and shape retention of the 3D cube structure after deposition. The partial replacement of WPI with MCI led to phase separation and 3D-printed cubes that collapsed after deposition. A narrow range of rheological material properties make WPI and MWP emulsion gels promising food inks for extrusion-based 3D printing.
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Affiliation(s)
- Valeska F. Sager
- Department of Food Science, Faculty of Science, University of Copenhagen, 10 DK-1165 Frederiksberg C, Denmark; (V.F.S.); (M.B.M.); (W.L.P.B.)
| | - Merete B. Munk
- Department of Food Science, Faculty of Science, University of Copenhagen, 10 DK-1165 Frederiksberg C, Denmark; (V.F.S.); (M.B.M.); (W.L.P.B.)
| | | | - Wender L. P. Bredie
- Department of Food Science, Faculty of Science, University of Copenhagen, 10 DK-1165 Frederiksberg C, Denmark; (V.F.S.); (M.B.M.); (W.L.P.B.)
| | - Lilia Ahrné
- Department of Food Science, Faculty of Science, University of Copenhagen, 10 DK-1165 Frederiksberg C, Denmark; (V.F.S.); (M.B.M.); (W.L.P.B.)
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Abstract
Milk is a ubiquitous foodstuff and food ingredient, and milk caseins are key to the structural properties of milk during processing and storage. Caseins self-assemble into nanometer-sized colloids, referred to as "micelles", and particles of this size are ideally suited to study by small-angle scattering (SAS). Previous SAS measurements have almost exclusively focussed on the internal structure of the micelles. While important for milk's properties, this attention to the interior of the micelles provides limited information about the structure-forming properties of milk and milk ingredients. The ultra-small-angle X-ray scattering (USAXS) measurements and analysis in this study extend to the micrometer scale, which makes it possible to characterize the interaction between the micelles. Until now, SAS studies have generally excluded a consideration of the interparticle interactions between casein micelles. This is inconsistent with these new data, and it is not possible to model the data without some interparticle attraction. If the micelles are treated as sticky spheres, excellent agreement between experimental data and model fits can be obtained over the length scales studied, from micrometers to ångströms. The stickiness of casein micelles will impact ultra-small-angle scattering and small-angle scattering measurements of casein micelles, but it particularly limits the application of simple approximations, which generally assume that particles are dilute and noninteracting. In summary, this analysis provides an approach to modelling scattering data over many orders of magnitude, which will provide better understanding of interactions between caseins and during food processing.
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Affiliation(s)
- Gregory N Smith
- Niels Bohr Institute, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen Ø, Denmark
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31
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Thybo CD, Lillevang SK, Skibsted LH, Ahrné L. Calcium balance during direct acidification of milk for Mozzarella cheese production. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2020.109677] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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32
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Christiansen MV, Pedersen TB, Brønd JN, Skibsted LH, Ahrné L. Physical properties and storage stability of reverse osmosis skim milk concentrates: Effects of skim milk pasteurisation, solid content and thermal treatment. J FOOD ENG 2020. [DOI: 10.1016/j.jfoodeng.2020.109922] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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33
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Yang S, Liu G, Munk DM, Qin Z, Petersen MA, Cardoso DR, Otte J, Ahrné L. Cycled high hydrostatic pressure processing of whole and skimmed milk: Effects on physicochemical properties. INNOV FOOD SCI EMERG 2020. [DOI: 10.1016/j.ifset.2020.102378] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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34
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Rasmussen PK, Suwal S, van den Berg FW, Yazdi SR, Ahrné L. Valorization of side-streams from lactose-free milk production by electrodialysis. INNOV FOOD SCI EMERG 2020. [DOI: 10.1016/j.ifset.2020.102337] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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35
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Vargas-Bello-Pérez E, Dhakal R, Nielsen MO, Ahrné L, Hansen HH. Corrigendum to: “Short communication: Electrochemical activated drinking water effects on bovine milk production and composition, including chlorate, perchlorate, and fatty acid profile” (J. Dairy Sci. 103:1208–1214). J Dairy Sci 2020; 103:4892-4893. [DOI: 10.3168/jds.2020-103-5-4892] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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36
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Felix da Silva D, Tziouri D, Ahrné L, Bovet N, Larsen FH, Ipsen R, Hougaard AB. Reconstitution behavior of cheese powders: Effects of cheese age and dairy ingredients on wettability, dispersibility and total rehydration. J FOOD ENG 2020. [DOI: 10.1016/j.jfoodeng.2019.109763] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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37
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Felix da Silva D, Vlachvei K, Geng X, Ahrné L, Ipsen R, Hougaard AB. Effect of cheese maturation on physical stability, flow properties and microstructure of oil-in-water emulsions stabilised with cheese powders. Int Dairy J 2020. [DOI: 10.1016/j.idairyj.2019.104630] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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38
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Vargas-Bello-Pérez E, Dhakal R, Nielsen MO, Ahrné L, Hansen HH. Short communication: Effects of electrochemically activated drinking water on bovine milk production and composition, including chlorate, perchlorate, and fatty acid profile. J Dairy Sci 2019; 103:1208-1214. [PMID: 31837793 DOI: 10.3168/jds.2019-17510] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 10/20/2019] [Indexed: 11/19/2022]
Abstract
The objective of this study was to assess the effects of electrochemically activated drinking water (ECW) on milk chlorate, milk perchlorate, milk iodine, milk composition, milk fatty acid profile, and overall performance of dairy cows. Ten Red Danish cows in mid-lactation (203 ± 31 d in milk; average ± SD) were chosen from these 2 groups for intensive sampling. The treated group drank water with 4 ppm of ECW (29 mg/L of chlorate of Neuthox, Danish Clean Water A/S, Sønderborg, Denmark). The treatment lasted 60 consecutive days, with milk and water sampling on d 0, 30, and 60. Additionally, milk samples from both the control group and treated group were taken on d 90 to assess if any carry-over effect was present. Interactions between period and milk yield and somatic cell for the full group and period and milk fat content and milk urea nitrogen in the selected animals occurred. Milk yield was not significantly affected by treatments. Milk fat, milk fatty acid profile, chlorate, perchlorate, and iodine contents were not significantly different between treatments. Milk urea increased, whereas β-hydroxybutyrate and somatic cell count decreased significantly in the treated groups. Results showed that at a dosing of 4 ppm of ECW, both chlorate and perchlorate concentrations in milk (<0.002 mg/kg) were low, and no deleterious effects on milk production or milk chemical composition were observed. These data can be of use when assessing the effects of ECW on milk and milk powder chlorate and perchlorate levels and provide a context for assessing the potential for influencing human health under the conditions prevailing on a commercial dairy farm.
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Affiliation(s)
- Einar Vargas-Bello-Pérez
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Grønnegårdsvej 3, DK-1870 Frederiksberg C, Denmark.
| | - Rajan Dhakal
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Grønnegårdsvej 3, DK-1870 Frederiksberg C, Denmark
| | - Mette O Nielsen
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Grønnegårdsvej 3, DK-1870 Frederiksberg C, Denmark
| | - Lilia Ahrné
- Department of Food Science, Faculty of Science, University of Copenhagen, Rolighedsvej 26, DK-1958, Frederiksberg C, Denmark
| | - Hanne H Hansen
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Grønnegårdsvej 3, DK-1870 Frederiksberg C, Denmark
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Felix da Silva D, Vlachvei K, Tziouri D, Hougaard AB, Ipsen R, Ahrné L. Cheese powder as emulsifier in oil-in-water (O/W) emulsions: Effect of powder concentration and added emulsifying salt during cheese powder manufacture. Lebensm Wiss Technol 2019. [DOI: 10.1016/j.lwt.2019.01.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Felix da Silva D, Hirschberg C, Ahrné L, Hougaard AB, Ipsen R. Cheese feed to powder: Effects of cheese age, added dairy ingredients and spray drying temperature on properties of cheese powders. J FOOD ENG 2018. [DOI: 10.1016/j.jfoodeng.2018.05.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Xanthakis E, Gogou E, Taoukis P, Ahrné L. Effect of microwave assisted blanching on the ascorbic acid oxidase inactivation and vitamin C degradation in frozen mangoes. INNOV FOOD SCI EMERG 2018. [DOI: 10.1016/j.ifset.2018.06.012] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Felix da Silva D, Ahrné L, Larsen FH, Hougaard AB, Ipsen R. Physical and functional properties of cheese powders affected by sweet whey powder addition before or after spray drying. POWDER TECHNOL 2018. [DOI: 10.1016/j.powtec.2017.10.014] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Felix da Silva D, Ahrné L, Ipsen R, Hougaard AB. Casein-Based Powders: Characteristics and Rehydration Properties. Compr Rev Food Sci Food Saf 2017; 17:240-254. [DOI: 10.1111/1541-4337.12319] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Revised: 10/13/2017] [Accepted: 10/13/2017] [Indexed: 11/28/2022]
Affiliation(s)
- Denise Felix da Silva
- Dept. of Food Science, Faculty of Science; Univ. of Copenhagen; Rolighedsvej 26 DK-1958 Frederiksberg C Denmark
| | - Lilia Ahrné
- Dept. of Food Science, Faculty of Science; Univ. of Copenhagen; Rolighedsvej 26 DK-1958 Frederiksberg C Denmark
| | - Richard Ipsen
- Dept. of Food Science, Faculty of Science; Univ. of Copenhagen; Rolighedsvej 26 DK-1958 Frederiksberg C Denmark
| | - Anni Bygvraa Hougaard
- Dept. of Food Science, Faculty of Science; Univ. of Copenhagen; Rolighedsvej 26 DK-1958 Frederiksberg C Denmark
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Eliasson L, Labrosse L, Ahrné L. Effect of drying technique and particle size of bilberry press cake on the extraction efficiency of anthocyanins by pressurized carbon dioxide extraction. Lebensm Wiss Technol 2017. [DOI: 10.1016/j.lwt.2017.03.030] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Eduardo M, Svanberg U, Ahrné L. Effect of hydrocolloids and emulsifiers on the shelf-life of composite cassava-maize-wheat bread after storage. Food Sci Nutr 2016; 4:636-44. [PMID: 27386112 PMCID: PMC4930506 DOI: 10.1002/fsn3.326] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 11/02/2015] [Accepted: 11/11/2015] [Indexed: 11/11/2022] Open
Abstract
The objective of this study was to evaluate the effect of hydrocolloids and/or emulsifiers on the shelf-life of composite cassava-maize-wheat (ratio 40:10:50) reference bread during storage. Added hydrocolloids were carboxymethylcellulose (CMC) and high methoxyl pectin (HM pectin) at a 3% level (w/w) and/or the emulsifiers diacetyl tartaric acid esters of monoglycerides (DATEM), lecithin (LC), and monoglycerides (MG) at a 0.3% level (w/w). After 4 days of storage, composite breads with MG had comparatively lower crumb moisture while crumb density was similar in all breads. The reference bread crumb firmness was 33.4 N, which was reduced with an addition of DATEM (23.0 N), MG (29.8 N), CMC (24.6 N) or HM pectin (22.4 N). However, the CMC/DATEM, CMC/LC, and HM pectin/DATEM combinations further reduced crumb firmness to <20.0 N. The melting peak temperature was increased from 52 C to between 53.0 C and 57.0 C with added hydrocolloids and/or emulsifiers. The melting enthalpy of the retrograded amylopectin was lower in composite bread with hydrocolloids and emulsifiers, 6.7-11.0 J/g compared to 20.0 J/g for the reference bread. These results show that emulsifiers in combination with hydrocolloids can improve the quality and extend the shelf-life of composite cassava-maize-wheat breads.
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Affiliation(s)
- Maria Eduardo
- Departamento de Engenharia QuímicaFaculdade de EngenhariaUniversidade Eduardo MondlaneMaputoMoçambique
- Department of Biology and Biological Engineering/Food and Nutrition ScienceChalmers University of TechnologyGothenburgSweden
| | - Ulf Svanberg
- Department of Biology and Biological Engineering/Food and Nutrition ScienceChalmers University of TechnologyGothenburgSweden
| | - Lilia Ahrné
- Department of Biology and Biological Engineering/Food and Nutrition ScienceChalmers University of TechnologyGothenburgSweden
- Process and Technology developmentSP Technical Research Institute of SwedenFood and BioscienceGothenburgSweden
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Shenoy P, Innings F, Tammel K, Fitzpatrick J, Ahrné L. Evaluation of a digital colour imaging system for assessing the mixture quality of spice powder mixes by comparison with a salt conductivity method. POWDER TECHNOL 2015. [DOI: 10.1016/j.powtec.2015.07.034] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Malafronte L, Ahrné L, Innings F, Jongsma A, Rasmuson A. Prediction of regions of coalescence and agglomeration along a spray dryer—Application to skim milk powder. Chem Eng Res Des 2015. [DOI: 10.1016/j.cherd.2015.10.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Eliasson L, Isaksson S, Lövenklev M, Ahrné L. A comparative study of infrared and microwave heating for microbial decontamination of paprika powder. Front Microbiol 2015; 6:1071. [PMID: 26483783 PMCID: PMC4588691 DOI: 10.3389/fmicb.2015.01071] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Accepted: 09/17/2015] [Indexed: 12/02/2022] Open
Abstract
There is currently a need in developing new decontamination technologies for spices due to limitations of existing technologies, mainly regarding their effects on spices’ sensory quality. In the search of new decontamination solutions, it is of interest to compare different technologies, to provide the industry with knowledge for taking decisions concerning appropriate decontamination technologies for spices. The present study compares infrared (IR) and microwave decontamination of naturally contaminated paprika powder after adjustment of water activity to 0.88. IR respectively microwave heating was applied to quickly heat up paprika powder to 98°C, after which the paprika sample was transferred to a conventional oven set at 98°C to keep the temperature constant during a holding time up to 20 min. In the present experimental set-up microwave treatment at 98°C for 20 min resulted in a reduction of 4.8 log units of the total number of mesophilic bacteria, while the IR treatment showed a 1 log unit lower reduction for the corresponding temperature and treatment time. Microwave and IR heating created different temperature profiles and moisture distribution within the paprika sample during the heating up part of the process, which is likely to have influenced the decontamination efficiency. The results of this study are used to discuss the difficulties in comparing two thermal technologies on equal conditions due to differences in their heating mechanisms.
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Affiliation(s)
- Lovisa Eliasson
- Food and Bioscience, SP Technical Research Institute of Sweden , Gothenburg, Sweden
| | - Sven Isaksson
- Food and Bioscience, SP Technical Research Institute of Sweden , Gothenburg, Sweden
| | - Maria Lövenklev
- Food and Bioscience, SP Technical Research Institute of Sweden , Gothenburg, Sweden
| | - Lilia Ahrné
- Food and Bioscience, SP Technical Research Institute of Sweden , Gothenburg, Sweden
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Slettengren K, Xanthakis E, Ahrné L, Windhab EJ. Flow Properties of Spices Measured with Powder Flow Tester and Ring Shear Tester-XS. International Journal of Food Properties 2015. [DOI: 10.1080/10942912.2015.1083576] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Erdogdu SB, Eliasson L, Erdogdu F, Isaksson S, Ahrné L. Experimental determination of penetration depths of various spice commodities (black pepper seeds, paprika powder and oregano leaves) under infrared radiation. J FOOD ENG 2015. [DOI: 10.1016/j.jfoodeng.2015.03.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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