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Aasmul-Olsen K, Akıllıoğlu HG, Christiansen LI, Engholm-Keller K, Brunse A, Stefanova DV, Bjørnshave A, Bechshøft MR, Skovgaard K, Thymann T, Sangild PT, Lund MN, Bering SB. A Gently Processed Skim Milk-Derived Whey Protein Concentrate for Infant Formula: Effects on Gut Development and Immunity in Preterm Pigs. Mol Nutr Food Res 2024; 68:e2300458. [PMID: 38389157 DOI: 10.1002/mnfr.202300458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 12/15/2023] [Indexed: 02/24/2024]
Abstract
SCOPE Processing of whey protein concentrate (WPC) for infant formulas may induce protein modifications with severe consequences for preterm newborn development. The study investigates how conventional WPC and a gently processed skim milk-derived WPC (SPC) affect gut and immune development after birth. METHODS AND RESULTS Newborn, preterm pigs used as a model of preterm infants were fed formula containing WPC, SPC, extra heat-treated SPC (HT-SPC), or stored HT-SPC (HTS-SPC) for 5 days. SPC contained no protein aggregates and more native lactoferrin, and despite higher Maillard reaction product (MRP) formation, the clinical response and most gut and immune parameters are similar to WPC pigs. SPC feeding negatively impacts intestinal MRP accumulation, mucosa, and bacterial diversity. In contrast, circulating T-cells are decreased and oxidative stress- and inflammation-related genes are upregulated in WPC pigs. Protein aggregation and MRP formation increase in HTS-SPC, leading to reduced antibacterial activity, lactase/maltase ratio, circulating neutrophils, and cytotoxic T-cells besides increased gut MRP accumulation and expression of TNFAIP3. CONCLUSION The gently processed SPC has more native protein, but higher MRP levels than WPC, resulting in similar tolerability but subclinical adverse gut effects in preterm pigs. Additional heat treatment and storage further induce MRP formation, gut inflammation, and intestinal mucosal damage.
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Affiliation(s)
- Karoline Aasmul-Olsen
- Section for Comparative Paediatrics and Nutrition, Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg, 1870, Denmark
| | - Halise Gül Akıllıoğlu
- Section for Ingredient and Dairy Technology, Department of Food Science, University of Copenhagen, Frederiksberg, 1958, Denmark
| | - Line Iadsatian Christiansen
- Section for Comparative Paediatrics and Nutrition, Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg, 1870, Denmark
| | - Kasper Engholm-Keller
- Section for Ingredient and Dairy Technology, Department of Food Science, University of Copenhagen, Frederiksberg, 1958, Denmark
| | - Anders Brunse
- Section for Comparative Paediatrics and Nutrition, Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg, 1870, Denmark
| | - Denitsa Vladimirova Stefanova
- Section for Microbiology and Fermentation, Department of Food Science, University of Copenhagen, Frederiksberg, 1958, Denmark
| | | | | | - Kerstin Skovgaard
- Section for Protein Science and Biotherapeutics, Department of Biotechnology and Biomedicine, Technical University of Denmark, Lyngby, 2800, Denmark
| | - Thomas Thymann
- Section for Comparative Paediatrics and Nutrition, Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg, 1870, Denmark
| | - Per Torp Sangild
- Section for Comparative Paediatrics and Nutrition, Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg, 1870, Denmark
- Department of Pediatrics and Adolescent Medicine, Rigshospitalet, Copenhagen, 2100, Denmark
- Hans Christian Andersen Children's Hospital, Odense, 5000, Denmark
| | - Marianne Nissen Lund
- Section for Ingredient and Dairy Technology, Department of Food Science, University of Copenhagen, Frederiksberg, 1958, Denmark
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, 2200, Denmark
| | - Stine Brandt Bering
- Section for Comparative Paediatrics and Nutrition, Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg, 1870, Denmark
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Jangir N, Bangrawa S, Yadav T, Malik S, Alamri AS, Galanakis CM, Singh M, Yadav JK. Isolation and characterization of amyloid-like protein aggregates from soya beans and the effect of low pH and heat treatment on their stability. J Food Biochem 2022; 46:e14369. [PMID: 35945661 DOI: 10.1111/jfbc.14369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 07/20/2022] [Accepted: 07/22/2022] [Indexed: 11/29/2022]
Abstract
Purified soya bean proteins (glycinin and conglycinin) are known to form amyloid-like aggregates in vitro at a higher temperature. Soya beans (chunks) are textured proteinaceous vegetables made from defatted soya flour by heating it above 100°C and extruding under high pressure. Therefore, it was assumed that subjecting the soya bean proteins to high temperatures raises the possibility of forming amyloids or amyloid-like protein aggregates. Hence, the present study aimed to examine the presence of amyloid-like protein aggregates in soya beans. The isolated protein aggregates from hydrated soya beans displayed typical characteristics of amyloids, such as the red shift in the absorption maximum (λmax ) of Congo red (CR), high Thioflavin T (ThT), and 8-Anilinonapthalene-1-sulfonate (ANS) binding, and fibrilar morphology. Furthermore, these aggregates were found to be stable against proteolytic hydrolysis, confirming the specific property of amyloids. The presence of amyloid-like structures in soya beans raises concerns about their implications for human nutrition and health. PRACTICAL APPLICATIONS: Protein aggregation has usually been considered detrimental. The traditional food-processing conditions, such as thermal processing, are associated with protein denaturation and aggregation. The formation of ordered protein aggregates with extensive β-sheet are progressively evident in various protein-rich foods known as amyloid, which expands food safety concerns. Instead, it is also associated with poor nutritional characteristics. The present study concerns the presence of amyloid-like protein aggregates in widely consumed native soya beans, which are manufactured by extensive heat treatment of defatted soy flour. Although there is no indication of their toxicity, these aggregates are found to be proteolytically resistant. The seminal findings in this manuscript suggest that it is time to adapt innovative food processing and supplementation of bioactive molecules that can prevent the formation of such protein aggregates and help maximize the utilization of protein-based nutritional values.
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Affiliation(s)
- Neelam Jangir
- Department of Biotechnology, Central University of Rajasthan, Ajmer, India
| | - Shreya Bangrawa
- Department of Biotechnology, Central University of Rajasthan, Ajmer, India
| | - Tamanna Yadav
- Department of Biotechnology, Central University of Rajasthan, Ajmer, India
| | - Shweta Malik
- Department of Biotechnology, Central University of Rajasthan, Ajmer, India
| | - Abdulhakeem S Alamri
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Taif University, Taif, Saudi Arabia.,Centre of Biomedical Sciences Research (CBSR), Deanship of Scientific Research, Taif University, Taif, Saudi Arabia
| | - Charis M Galanakis
- Department of Research & Innovation, Galanakis Laboratories, Chania, Greece.,Department of Biology, College of Science, Taif University, Taif, Saudi Arabia.,Food Waste Recovery Group, ISEKI Food Association, Vienna, Austria
| | - Manish Singh
- Chemical Biology Unit, Institute of Nano Science and Technology, Mohali, India
| | - Jay Kant Yadav
- Department of Biotechnology, Central University of Rajasthan, Ajmer, India
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Ma X, Yang D, Qiu W, Mei J, Xie J. Influence of Multifrequency Ultrasound-Assisted Freezing on the Flavour Attributes and Myofibrillar Protein Characteristics of Cultured Large Yellow Croaker ( Larimichthys crocea). Front Nutr 2022; 8:779546. [PMID: 34977123 PMCID: PMC8714677 DOI: 10.3389/fnut.2021.779546] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Accepted: 11/15/2021] [Indexed: 01/16/2023] Open
Abstract
The influence of multifrequency ultrasound-assisted freezing (UAF) as compared with single- and dual-UAF on the flavour, microstructure, and myofibrillar proteins (MPs) of cultured large yellow croaker was investigated to improve food quality in a sustainable way and address the major global challenges concerning food and nutrition security in the (near) future. Multifrequency UAF-treated samples had lower total volatile basic nitrogen values during freezing than single- and dual-UAF-treated samples. Thirty-six volatile compounds were identified by solid-phase microextraction (SPME) coupled to gas chromatography–mass spectrometry (GC-MS) during freezing, and the multifrequency UAF-treated samples showed significant decreases in the relative contents of fishy flavoured compounds, including 1-penten-3-ol and 1-octen-3-ol. In addition, multifrequency UAF treatment better maintained a well-organised protein secondary structure by maintaining higher α-helical and β-sheet contents and stabilising the tertiary structure. Scanning electron microscopy images indicated that the ice crystals developed by the multifrequency UAF were fine and uniformly distributed, resulting in less damage to the frozen large yellow croaker samples. Therefore, multifrequency UAF improved the flavour attributes and MP characteristics of the large yellow croaker samples. Overall, multifrequency UAF can serve as an efficient way for improving food quality and nutritional profile in a sustainable way.
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Affiliation(s)
- Xuan Ma
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
| | - Dazhang Yang
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China.,National Experimental Teaching Demonstration Center for Food Science and Engineering Shanghai Ocean University, Shanghai, China.,Shanghai Engineering Research Center of Aquatic Product Processing and Preservation, Shanghai, China.,Shanghai Professional Technology Service Platform on Cold Chain Equipment Performance and Energy Saving Evaluation, Shanghai, China
| | - Weiqiang Qiu
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China.,National Experimental Teaching Demonstration Center for Food Science and Engineering Shanghai Ocean University, Shanghai, China.,Shanghai Engineering Research Center of Aquatic Product Processing and Preservation, Shanghai, China.,Shanghai Professional Technology Service Platform on Cold Chain Equipment Performance and Energy Saving Evaluation, Shanghai, China
| | - Jun Mei
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China.,National Experimental Teaching Demonstration Center for Food Science and Engineering Shanghai Ocean University, Shanghai, China.,Shanghai Engineering Research Center of Aquatic Product Processing and Preservation, Shanghai, China.,Shanghai Professional Technology Service Platform on Cold Chain Equipment Performance and Energy Saving Evaluation, Shanghai, China
| | - Jing Xie
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China.,National Experimental Teaching Demonstration Center for Food Science and Engineering Shanghai Ocean University, Shanghai, China.,Shanghai Engineering Research Center of Aquatic Product Processing and Preservation, Shanghai, China.,Shanghai Professional Technology Service Platform on Cold Chain Equipment Performance and Energy Saving Evaluation, Shanghai, China
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