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Liu R, Yang Y, Zhang Y, Sun Q, Zhu P, Xu H, Zheng W, Lu Y, Fu Q. Proteomic and antimicrobial peptide analyses of Buffalo colostrum and mature Milk whey: A comparative study. Food Chem 2024; 448:139119. [PMID: 38547703 DOI: 10.1016/j.foodchem.2024.139119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 03/08/2024] [Accepted: 03/21/2024] [Indexed: 04/24/2024]
Abstract
Buffalo colostrum is the initial mammary secretion after parturition, consisting of nutritional and bioactive components. In this study, we conducted a proteomic analysis of buffalo colostrum whey to identify bioactive proteins and peptides. A total of 107 differentially expressed proteins (DEPs) were identified in buffalo colostrum whey compared to those in mature milk. Gene Ontology analysis revealed that DEPs were primarily associated with immune response and tissue development. KEGG pathway enrichment suggested that colostrum actively enhances nascent immunity involved in interleukin and interferon signaling pathways. Furthermore, candidate antimicrobial peptides (AMPs) of whey protein hydrolysates from buffalo colostrum were characterized, which exhibits broad-spectrum activity against gram-positive and gram-negative pathogens. Overall, this study improves our understanding of protein variations in buffalo lactation, and contributes to the development of AMPs from buffalo colostrum.
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Affiliation(s)
- Runfeng Liu
- College of Animal Science and Technology, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresource, Guangxi University, Nanning 530004, China
| | - Yuan Yang
- College of Animal Science and Technology, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresource, Guangxi University, Nanning 530004, China
| | - Yue Zhang
- College of Animal Science and Technology, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresource, Guangxi University, Nanning 530004, China
| | - Qinqiang Sun
- College of Animal Science and Technology, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresource, Guangxi University, Nanning 530004, China
| | - Pingchuan Zhu
- College of Animal Science and Technology, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresource, Guangxi University, Nanning 530004, China
| | - Huiyan Xu
- College of Animal Science and Technology, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresource, Guangxi University, Nanning 530004, China
| | - Wei Zheng
- Buffalo Research Institute, Chinese Academy of Agricultural Sciences, Nanning 530001, China
| | - Yangqing Lu
- College of Animal Science and Technology, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresource, Guangxi University, Nanning 530004, China.
| | - Qiang Fu
- College of Animal Science and Technology, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresource, Guangxi University, Nanning 530004, China.
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2
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Seyfali E, Khoshtaghaza MH, Rouhi M, Sarlak Z, Najafi G. The potential of pulsed electromagnetic field-generated shock waves for reducing microbial load and improving homogenization in raw milk. Heliyon 2024; 10:e32204. [PMID: 38868044 PMCID: PMC11168425 DOI: 10.1016/j.heliyon.2024.e32204] [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: 11/01/2023] [Revised: 05/23/2024] [Accepted: 05/29/2024] [Indexed: 06/14/2024] Open
Abstract
Milk is a highly nutritious food essential for human consumption. However, traditional thermal processing methods can reduce its nutritional value and cause unwanted changes. The use of shock waves produced by pulsed electromagnetic fields (PEMFs) has been explored as a means to reduce pathogenic microorganisms. The effect of shock wave treatment on microbial load and particle distribution in packaged fresh cow's milk was investigated. Additionally, the impact of shock wave treatment on Salmonella enterica counts in a bacterial suspension of phosphate-buffered saline (PBS) was evaluated, as this bacterium is a significant milkborne pathogen. Treatment with 1000 impulses from an electromagnetic shock wave generator resulted in a 0.7-log reduction in the total bacterial count of milk. In a separate experiment, a 300-impulse shock wave treatment applied to a Salmonella enterica suspension achieved a 3-log reduction in bacterial counts. Furthermore, shock wave treatment resulted in a decrease in milk particle size compared to untreated milk. Notably, the volume of milk used in this study aligns with commercially available packaged products, enhancing the experiment's industrial relevance. The use of PEMF to generate shock waves could provide a novel approach for future studies focused on reducing the microbial load of milk and improving its homogenization.
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Affiliation(s)
- Ehsan Seyfali
- Department of Biosystems Engineering, Tarbiat Modares University, Tehran, Iran
| | | | - Milad Rouhi
- Research Center of Oils and Fats, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Zahra Sarlak
- Research Center of Oils and Fats, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Gholamhassan Najafi
- Department of Biosystems Engineering, Tarbiat Modares University, Tehran, Iran
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3
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Nguan HS, Chen JL, Ni CK. Collision-Induced Dissociation of Fucose and Identification of Anomericity. J Phys Chem A 2024; 128:3812-3820. [PMID: 38690855 PMCID: PMC11103703 DOI: 10.1021/acs.jpca.4c00640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 04/15/2024] [Accepted: 04/24/2024] [Indexed: 05/03/2024]
Abstract
Structural determination of carbohydrates using mass spectrometry remains challenging, particularly, the differentiation of anomeric configurations. In this work, we studied the collision-induced dissociation (CID) mechanisms of sodiated α- and β-l-fucose using an experimental method and quantum chemistry calculations. The calculations show that α-l-fucose is more likely to undergo dehydration due to the fact that O1 and O2 are on the same side of the sugar ring. In contrast, β-l-fucose is more prone to the ring-opening reaction because more OH groups are on the same side of the sugar ring as O1. These differences suggest a higher preference for the dehydration reaction in sodiated α-l-fucose but a lower preference for ring-opening compared to that of β-l-fucose. The calculation results, which are used to assign the CID mass spectra of α- and β-l-fucose separated by high-performance liquid chromatography, are supported by the fucose produced from the CID of disaccharides Fuc-β-(1 → 3)-GlcNAc and Fuc-α-(1 → 4)-GlcNAc. This study demonstrates that the correlation of cis- and trans-configurations of O1 and O2 to the relative branching ratios of dehydration and cross-ring dissociation in CID, observed in aldohexose and ketohexose in the pyranose form, can be extended to deoxyhexoses for anomericity determination.
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Affiliation(s)
- Hock-Seng Nguan
- Institute
of Atomic and Molecular Sciences, Academia
Sinica, P.O. Box 23-166, Taipei 10617, Taiwan
| | - Jien-Lian Chen
- Institute
of Atomic and Molecular Sciences, Academia
Sinica, P.O. Box 23-166, Taipei 10617, Taiwan
| | - Chi-Kung Ni
- Institute
of Atomic and Molecular Sciences, Academia
Sinica, P.O. Box 23-166, Taipei 10617, Taiwan
- Department
of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan
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4
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Homolak J, Babic Perhoc A, Virag D, Knezovic A, Osmanovic Barilar J, Salkovic-Petrisic M. D-galactose might mediate some of the skeletal muscle hypertrophy-promoting effects of milk-A nutrient to consider for sarcopenia? Bioessays 2024; 46:e2300061. [PMID: 38058119 DOI: 10.1002/bies.202300061] [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: 04/05/2023] [Revised: 10/18/2023] [Accepted: 11/13/2023] [Indexed: 12/08/2023]
Abstract
Sarcopenia is a process of progressive aging-associated loss of skeletal muscle mass (SMM) recognized as a serious global health issue contributing to frailty and increased all-cause mortality. Exercise and nutritional interventions (particularly intake of dairy products and milk) demonstrate good efficacy, safety, and broad applicability. Here, we propose that at least some of the well-documented favorable effects of milk and milk-derived protein supplements on SMM might be mediated by D-galactose, a monosaccharide present in large quantities in milk in the form of disaccharide lactose (milk sugar). We suggest that ingestion of dairy products results in exposure to D-galactose in concentrations metabolized primarily via the Leloir pathway with the potential to (i) promote anabolic signaling via maintenance of growth factor (e.g., insulin-like growth factor 1 [IGF-1]) receptor mature glycosylation patterns; and (ii) provide extracellular (liver glycogen) and intracellular substrates for short (muscle glycolysis) and long-term (muscle glycogen, intramyocellular lipids) energy availability. Additionally, D-galactose might optimize the metabolic function of skeletal muscles by increasing mitochondrial content and stimulating glucose and fatty acid utilization. The proposed potential of D-galactose to promote the accretion of SMM is discussed in the context of its therapeutic potential in sarcopenia.
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Affiliation(s)
- Jan Homolak
- Department of Pharmacology, University of Zagreb School of Medicine, Zagreb, Croatia
- Croatian Institute for Brain Research, University of Zagreb School of Medicine, Zagreb, Croatia
- Interfaculty Institute of Microbiology and Infection Medicine, University of Tübingen, Tübingen, Germany
- Cluster of Excellence "Controlling Microbes to Fight Infections", University of Tübingen, Tübingen, Germany
| | - Ana Babic Perhoc
- Department of Pharmacology, University of Zagreb School of Medicine, Zagreb, Croatia
- Croatian Institute for Brain Research, University of Zagreb School of Medicine, Zagreb, Croatia
| | - Davor Virag
- Department of Pharmacology, University of Zagreb School of Medicine, Zagreb, Croatia
- Croatian Institute for Brain Research, University of Zagreb School of Medicine, Zagreb, Croatia
| | - Ana Knezovic
- Department of Pharmacology, University of Zagreb School of Medicine, Zagreb, Croatia
- Croatian Institute for Brain Research, University of Zagreb School of Medicine, Zagreb, Croatia
| | - Jelena Osmanovic Barilar
- Department of Pharmacology, University of Zagreb School of Medicine, Zagreb, Croatia
- Croatian Institute for Brain Research, University of Zagreb School of Medicine, Zagreb, Croatia
| | - Melita Salkovic-Petrisic
- Department of Pharmacology, University of Zagreb School of Medicine, Zagreb, Croatia
- Croatian Institute for Brain Research, University of Zagreb School of Medicine, Zagreb, Croatia
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5
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Saadi S, Makhlouf C, Nacer NE, Halima B, Faiza A, Kahina H, Wahiba F, Afaf K, Rabah K, Saoudi Z. Whey proteins as multifunctional food materials: Recent advancements in hydrolysis, separation, and peptidomimetic approaches. Compr Rev Food Sci Food Saf 2024; 23:e13288. [PMID: 38284584 DOI: 10.1111/1541-4337.13288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 10/23/2023] [Accepted: 12/11/2023] [Indexed: 01/30/2024]
Abstract
Whey protein derived bioactives, including α-lactalbumin, ß-lactoglobulin, bovine serum albumin, lactoferrin, transferrin, and proteose-peptones, have exhibited wide ranges of functional, biological and therapeutic properties varying from anticancer, antihypertensive, and antimicrobial effects. In addition, their functional properties involve gelling, emulsifying, and foaming abilities. For these reasons, this review article is framed to understand the relationship existed in between those compound levels and structures with their main functional, biological, and therapeutic properties exhibited either in vitro or in vivo. The impacts of hydrolysis mechanism and separation techniques in enhancing those properties are likewise discussed. Furthermore, special emphasize is given to multifunctional effects of whey derived bioactives and their future trends in ameliorating further food, pharmaceutical, and nutraceutical products. The underlying mechanism effects of those properties are still remained unclear in terms of activity levels, efficacy, and targeted effectiveness. For these reasons, some important models linking to functional properties, thermal properties and cell circumstances are established. Moreover, the coexistence of radical trapping groups, chelating groups, sulfhydryl groups, inhibitory groups, and peptide bonds seemed to be the key elements in triggering those functions and properties. Practical Application: Whey proteins are the byproducts of cheese processing and usually the exploitation of these food waste products has increasingly getting acceptance in many countries, especially European countries. Whey proteins share comparable nutritive values to milk products, particularly on their richness on important proteins that can serve immune protection, structural, and energetic roles. The nutritive profile of whey proteins shows diverse type of bioactive molecules like α-lactalbumin, ß-lactoglobulin, lactoferrin, transferrin, immunoglobulin, and proteose peptones with wide biological importance to the living system, such as in maintaining immunological, neuronal, and signaling roles. The diversification of proteins of whey products prompted scientists to exploit the real mechanisms behind of their biological and therapeutic effects, especially in declining the risk of cancer, tumor, and further complications like diabetes type 2 and hypertension risk effects. For these reasons, profiling these types of proteins using different proteomic and peptidomic approaches helps in determining their biological and therapeutic targets along with their release into gastrointestinal tract conditions and their bioavailabilities into portal circulation, tissue, and organs. The wide applicability of those protein fractions and their derivative bioactive products showed significant impacts in the field of emulsion and double emulsion stabilization by playing roles as emulsifying, surfactant, stabilizing, and foaming agents. Their amphoteric properties helped them to act as excellent encapsulating agents, particularly as vehicle for delivering important vitamins and bioactive compounds. The presence of ferric elements increased their transportation to several metal-ions in the same time increased their scavenging effects to metal-transition and peroxidation of lipids. Their richness with almost essential and nonessential amino acids makes them as selective microbial starters, in addition their richness in sulfhydryl amino acids allowed them to act a cross-linker in conjugating further biomolecules. For instance, conjugating gold-nanoparticles and fluorescent materials in targeting diseases like cancer and tumors in vivo is considered the cutting-edges strategies for these versatile molecules due to their active diffusion across-cell membrane and the presence of specific transporters to these therapeutic molecules.
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Affiliation(s)
- Sami Saadi
- Institut de la Nutrition, de l'Alimentation et des Technologies Agroalimentaires (INATAA), Université Frères Mentouri Constantine 1, Constantine, Algeria
- Laboratoire de Génie Agro-alimentaire, équipe Génie des Procédés Alimentaires, Biodiversité et Agro environnement, INATAA, Université Frères Mentouri Constantine 1 (UFC1), Constantine, Algeria
| | - Chaalal Makhlouf
- Institut de la Nutrition, de l'Alimentation et des Technologies Agroalimentaires (INATAA), Université Frères Mentouri Constantine 1, Constantine, Algeria
- Laboratory of Biotechnology and Food Quality, Institute of Nutrition, Food and Agro-Food Technologies, University of Constantine 1, Constantine, Algeria
- Laboratory of Applied Biochemistry, Faculty of Nature and Life Science, University of Bejaia, Bejaia, Algeria
| | - Nor Elhouda Nacer
- Department of Biology of Organisms, Faculty of Natural and Life Sciences, University of Batna 2, Batna, Algeria
| | - Boughellout Halima
- Institut de la Nutrition, de l'Alimentation et des Technologies Agroalimentaires (INATAA), Université Frères Mentouri Constantine 1, Constantine, Algeria
- Laboratoire de Génie Agro-alimentaire, équipe Génie des Procédés Alimentaires, Biodiversité et Agro environnement, INATAA, Université Frères Mentouri Constantine 1 (UFC1), Constantine, Algeria
| | - Adoui Faiza
- Institut de la Nutrition, de l'Alimentation et des Technologies Agroalimentaires (INATAA), Université Frères Mentouri Constantine 1, Constantine, Algeria
- Laboratoire de Génie Agro-alimentaire, équipe Génie des Procédés Alimentaires, Biodiversité et Agro environnement, INATAA, Université Frères Mentouri Constantine 1 (UFC1), Constantine, Algeria
| | - Hafid Kahina
- Institut de la Nutrition, de l'Alimentation et des Technologies Agroalimentaires (INATAA), Université Frères Mentouri Constantine 1, Constantine, Algeria
- Equipe MaQuaV, Laboratoire Bioqual INATAA, Université des Frères Mentouri-Constantine 1, Constantine, Algeria
| | - Falek Wahiba
- Institut de la Nutrition, de l'Alimentation et des Technologies Agroalimentaires (INATAA), Université Frères Mentouri Constantine 1, Constantine, Algeria
- Laboratoire de Génie Agro-alimentaire, équipe Génie des Procédés Alimentaires, Biodiversité et Agro environnement, INATAA, Université Frères Mentouri Constantine 1 (UFC1), Constantine, Algeria
| | - Kheroufi Afaf
- Institut de la Nutrition, de l'Alimentation et des Technologies Agroalimentaires (INATAA), Université Frères Mentouri Constantine 1, Constantine, Algeria
- Laboratoire de Génie Agro-alimentaire, équipe Génie des Procédés Alimentaires, Biodiversité et Agro environnement, INATAA, Université Frères Mentouri Constantine 1 (UFC1), Constantine, Algeria
| | - Kezih Rabah
- Institut de la Nutrition, de l'Alimentation et des Technologies Agroalimentaires (INATAA), Université Frères Mentouri Constantine 1, Constantine, Algeria
- Laboratory of Biotechnology and Food Quality, Institute of Nutrition, Food and Agro-Food Technologies, University of Constantine 1, Constantine, Algeria
| | - Zineddine Saoudi
- Institut de la Nutrition, de l'Alimentation et des Technologies Agroalimentaires (INATAA), Université Frères Mentouri Constantine 1, Constantine, Algeria
- Laboratoire de Génie Agro-alimentaire, équipe Génie des Procédés Alimentaires, Biodiversité et Agro environnement, INATAA, Université Frères Mentouri Constantine 1 (UFC1), Constantine, Algeria
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Vioque-Amor M, Gómez-Díaz R, Del Río-Celestino M, Avilés-Ramírez C. Butter from Different Species: Composition and Quality Parameters of Products Commercialized in the South of Spain. Animals (Basel) 2023; 13:3559. [PMID: 38003176 PMCID: PMC10668682 DOI: 10.3390/ani13223559] [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: 10/24/2023] [Revised: 11/13/2023] [Accepted: 11/14/2023] [Indexed: 11/26/2023] Open
Abstract
Butter is an important product for the dairy industry due to its particular sensory attributes and nutritional value, while the variability of the composition of the fatty acids in the milk can alter the nutritional and physical properties of butter and its acceptance by consumers. Butter is highly appreciated for its distinctive flavor and aroma; however, one of its main drawbacks lies in the difficulty in spreading it at low temperatures. Several types of butter that are present in the market were used in this study. We assessed the variability in the composition of the samples regarding their texture, color properties, and volatile organic compound profiles. We analyzed samples commercially produced from sheep's milk (SB), goat's milk (GB), and cow's milk (CB); samples from the latter species with (CSB) and without salt (CB); and the low-fat (CLB) version. All the physicochemical composition parameters were significantly affected by the effect of the type of butter, although only 29 out of the 45 fatty acids examined were identified in the butter samples analyzed. The textural properties of the butters were influenced by both their solid fat content and the fatty acid profile. In addition, the origin of the milk not only affected the texture parameters but also the color of the butters and the compounds associated with traits such as odor and flavor. Through the multivariate data analysis of butter fatty acids and volatile compound percentages, we observed a clear differentiation of the samples based on the species of origin.
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Affiliation(s)
- Montserrat Vioque-Amor
- Research Group AGR-120, Department of Food Science and Technology, University of Cordoba, Ctra. Madrid-Cadiz km 396, 14071 Cordoba, Spain; (M.V.-A.); (R.G.-D.)
| | - Rafael Gómez-Díaz
- Research Group AGR-120, Department of Food Science and Technology, University of Cordoba, Ctra. Madrid-Cadiz km 396, 14071 Cordoba, Spain; (M.V.-A.); (R.G.-D.)
| | | | - Carmen Avilés-Ramírez
- Research Group AGR-120, Department of Food Science and Technology, University of Cordoba, Ctra. Madrid-Cadiz km 396, 14071 Cordoba, Spain; (M.V.-A.); (R.G.-D.)
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Mr. Saddam, Khan M, Jamal M, Rahman SU, Qadeer A, Khan I, Mahmoud MH, Batiha GES, Shah SH. Nutritional analysis and characterization of carbapenemase producing-Klebsiella pneumoniae resistant genes associated with bovine mastitis infected cow's milk. PLoS One 2023; 18:e0293477. [PMID: 37889925 PMCID: PMC10610456 DOI: 10.1371/journal.pone.0293477] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Accepted: 10/13/2023] [Indexed: 10/29/2023] Open
Abstract
The current study was designed to analyze nutritional parameters and to characterize carbapenemase producing-Klebsiella pneumoniae isolates from bovine mastitic cow's milk. Out of 700 milk samples K. pneumoniae was identified by phenotypic and molecular techniques along with their antibiogram analysis and nutritional analysis was performed using the procedure of Association of Official Analytical Chemists. Carbapenemase-producing K. pneumoniae was detected by phenotypic CarbaNP test followed by molecular characterization of their associated resistant genes blaVIM, blaKPC, blaOXA-48, blaNDM, and blaIMP along with insertion sequence common region 1 (ISCR1) and integrons (Int1, Int2, and Int3) genes. Among nutritional parameters, fat content was observed (2.99%) followed by protein (2.78%), lactose (4.32%), and total solid (11.34%), respectively. The prevalence of K. pneumoniae among bovine mastitis was found 25.71%. Antibiogram analysis revealed that more effective antibiotics was ceftazidime (80%) followed by amikacin (72%), while highly resistant antibiotics was Fusidic acid (100%). Distribution of carbapenemase producer K. pneumoniae was found 44.4%. Among carbapenem resistant genes blaKPC was found 11.25%, blaVIM 2.75%, blaNDM 17.5%, and blaOXA-48 7.5%, while blaIMP gene was not detected. Furthermore, distribution of ISCR1 was found 40%, while integron 1 was found 61.2% followed by integron 2 (20%), and integron 3 (5%). In conclusion, the recent scenario of carbapenemase resistant K. pneumoniae isolates responsible for mastitis may affect not only the current treatment regime but also possess a serious threat to public health due to its food borne transmission and zoonotic potential.
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Affiliation(s)
- Mr. Saddam
- Department of Microbiology, Abdul Wali Khan University, Marden, Pakistan
| | - Muddasir Khan
- Centre of Biotechnology and Microbiology, University of Peshawar, Peshawar, Pakistan
| | - Muhsin Jamal
- Department of Microbiology, Abdul Wali Khan University, Marden, Pakistan
| | - Sadeeq Ur Rahman
- College of Veterinary Sciences and Animal Husbandry, Abdul Wali Khan University, Mardan, Pakistan
| | - Abdul Qadeer
- Shanghai Tenth People’s Hospital, Institute for Infectious Diseases and Vaccine Development, Tongji University School of Medicine, Shanghai, China
| | - Imad Khan
- College of Veterinary Sciences and Animal Husbandry, Abdul Wali Khan University, Mardan, Pakistan
| | - Mohamed H. Mahmoud
- Department of Biochemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Gaber El-Saber Batiha
- Department of Pharmacology, Faculty of Veterinary Medicine, Damanhour University, Damanhour, AlBeheira, Egypt
| | - Syed Hussain Shah
- Department of Health and Biological Sciences, Abasyn University Peshawar, Peshawar, Pakistan
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8
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Rodzik A, Railean V, Pomastowski P, Buszewski B, Szumski M. Immobilized enzyme microreactors for analysis of tryptic peptides in β-casein and β-lactoglobulin. Sci Rep 2023; 13:16551. [PMID: 37783762 PMCID: PMC10545664 DOI: 10.1038/s41598-023-43521-z] [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: 07/26/2023] [Accepted: 09/25/2023] [Indexed: 10/04/2023] Open
Abstract
In this study, our primary objective was to develop an effective analytical method for studying trypsin-digested peptides of two proteins commonly found in cow's milk: β-casein (βCN) and β-lactoglobulin (βLG). To achieve this, we employed two distinct approaches: traditional in-gel protein digestion and protein digestion using immobilized enzyme microreactors (μ-IMER). Both methods utilized ZipTip pipette tips filled with C18 reverse phase media for sample concentration. The μ-IMER was fabricated through a multi-step process that included preconditioning the capillary, modifying its surface, synthesizing a monolithic support, and further surface modification. Its performance was evaluated under HPLC chromatography conditions using a small-molecule trypsin substrate (BAEE). Hydrolysates from both digestion methods were analyzed using MALDI-TOF MS. Our findings indicate that the μ-IMER method demonstrated superior sequence coverage for oxidized molecules in βCN (33 ± 1.5%) and βLG (65 ± 3%) compared to classical in-gel digestion (20 ± 2% for βCN; 49 ± 2% for βLG). The use of ZipTips further improved sequence coverage in both classical in-gel digestion (26 ± 1% for βCN; 60 ± 4% for βLG) and μ-IMER (41 ± 3% for βCN; 80 ± 5% for βLG). Additionally, phosphorylations were identified. For βCN, no phosphorylation was detected using classical digestion, but the use of ZipTips showed a value of 27 ± 4%. With μ-IMER and μ-IMER-ZipTip, the values increased to 30 ± 2% and 33 ± 1%, respectively. For βLG, the use of ZipTip enabled the detection of a higher percentage of modified peptides in both classical (79 ± 2%) and μ-IMER (79 ± 4%) digestions. By providing a comprehensive comparison of traditional in-gel digestion and μ-IMER methods, this study offers valuable insights into the advantages and limitations of each approach, particularly in the context of complex biological samples. The findings set a new benchmark in protein digestion and analysis, highlighting the potential of μ-IMER systems for enhanced sequence coverage and post-translational modification detection.
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Affiliation(s)
- Agnieszka Rodzik
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Toruń, Wileńska 4, 87-100, Toruń, Poland.
- Department of Environmental Chemistry and Bioanalysis, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100, Toruń, Poland.
| | - Viorica Railean
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Toruń, Wileńska 4, 87-100, Toruń, Poland
- Department of Infectious, Invasive Diseases and Veterinary Administration, Institute of Veterinary Medicine, Nicolaus Copernicus University in Torun, Gagarina 7, 87-100, Toruń, Poland
| | - Paweł Pomastowski
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Toruń, Wileńska 4, 87-100, Toruń, Poland
| | - Bogusław Buszewski
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Toruń, Wileńska 4, 87-100, Toruń, Poland
- Department of Environmental Chemistry and Bioanalysis, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100, Toruń, Poland
| | - Michał Szumski
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Toruń, Wileńska 4, 87-100, Toruń, Poland.
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9
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Hameed A, Anwar MJ, Perveen S, Amir M, Naeem I, Imran M, Hussain M, Ahmad I, Afzal MI, Inayat S, Awuchi CG. Functional, industrial and therapeutic applications of dairy waste materials. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2023; 26:1470-1496. [DOI: 10.1080/10942912.2023.2213854] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 05/09/2023] [Indexed: 05/18/2024]
Affiliation(s)
- Aneela Hameed
- Faculty of Food Science and Nutrition, Bahauddin Zakariya University, Multan, Punjab, Pakistan
| | - Muhammad Junaid Anwar
- Faculty of Food Science and Nutrition, Bahauddin Zakariya University, Multan, Punjab, Pakistan
| | - Saima Perveen
- Faculty of Food Science and Nutrition, Bahauddin Zakariya University, Multan, Punjab, Pakistan
| | - Muhammad Amir
- Faculty of Food Science and Nutrition, Bahauddin Zakariya University, Multan, Punjab, Pakistan
| | - Iqra Naeem
- Faculty of Food Science and Nutrition, Bahauddin Zakariya University, Multan, Punjab, Pakistan
| | - Muhammad Imran
- Department of food science and technology, University of Narowal-Pakistan, Narowal, Pakistan
| | - Muzzamal Hussain
- Department of Food Sciences, Government College University Faisalabad, Faisalabad, Pakistan
| | - Ishtiaque Ahmad
- Department of Dairy Technology, University of Veterinary & Animal Sciences, Lahore, Pakistan
| | - Muhamad Inam Afzal
- Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan
| | - Saima Inayat
- Department of Dairy Technology, University of Veterinary & Animal Sciences, Lahore, Pakistan
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10
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Sun Y, Liu S, Ma S, Sun L, Li X, Liu L, Ma C, Fanny MBA, Jiao Y, Bi L. Interfacial compositions of fat globules modulate structural characteristics and lipolysis of its model emulsions during in-vitro digestion. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:4668-4675. [PMID: 36997692 DOI: 10.1002/jsfa.12591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 03/03/2023] [Accepted: 03/30/2023] [Indexed: 06/06/2023]
Abstract
BACKGROUND This study investigated whether milk fat globule membrane as an emulsifier could make fat easier for infants to digest. An emulsion was formed using the membrane material, where anhydrous milk fat was used as the core material, milk fat globule membrane polar lipid (MPL) as the emulsifier, and soybean phospholipid (PL) and milk protein concentrate (MPC) incorporated as control emulsifiers. Structural characterization, glyceride composition, and fatty acid release from emulsions by in vitro digestion were investigated. RESULTS The average particle size at the end of intestinal digestion was in the order MPL < PL < MPC, with diameters of 3.41 ± 0.51 μm, 3.53 ± 0.47 μm, and 10.46 ± 2.33 μm respectively. Meanwhile, laser scanning confocal microscopy results also illustrated that MPL could reduce the degree of aggregation during digestion. The lipolysis degree of MPL emulsion was higher than that of PL and MPC emulsions. MPL not only released higher levels of long-chain fatty acids, such as C18:1, C18:2, C18:3, which are of great significance for infant growth and development, but also released increased levels of C20:4 (arachidonic acid) and C22:6 (docosahexaenoic acid) than PL and MPC emulsions did. CONCLUSION Fat droplets enveloped by milk fat globule MPLs were easier to digest and are therefore more suitable for infant formula. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Yue Sun
- Food College, Northeast Agricultural University, Harbin, China
| | - Shuming Liu
- Heilongjiang Beingmate Dairy Co., Ltd, Suihua, China
| | - Shuaiyi Ma
- Food College, Northeast Agricultural University, Harbin, China
- National Center of Technology Innovation for Dairy, Hohhot, China
| | - Lina Sun
- Food College, Northeast Agricultural University, Harbin, China
| | - Xiaodong Li
- Food College, Northeast Agricultural University, Harbin, China
| | - Lu Liu
- Food College, Northeast Agricultural University, Harbin, China
| | - Chunli Ma
- Food College, Northeast Agricultural University, Harbin, China
| | | | - Yang Jiao
- Food College, Northeast Agricultural University, Harbin, China
| | - Lianji Bi
- Food College, Northeast Agricultural University, Harbin, China
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11
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Li H, Guan K, Liu M, Liu D, Wang W, Zhu A. Novel antioxidant peptides from MFGM protein Hydrolysates: Separation, identification and effects on Dexamethasone-induced mitochondrial dysfunction. Food Chem 2023; 403:134473. [DOI: 10.1016/j.foodchem.2022.134473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 09/08/2022] [Accepted: 09/28/2022] [Indexed: 11/06/2022]
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12
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Ammar H, Touihri I, Kholif AE, M’Rabet Y, Jaouadi R, Chahine M, Marti MEDH, Vargas-Bello-Pérez E, Hosni K. Chemical Composition, Antioxidant, and Antimicrobial Activities of Leaves of Ajuga Iva. Molecules 2022; 27:7102. [PMID: 36296695 PMCID: PMC9607272 DOI: 10.3390/molecules27207102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 10/13/2022] [Accepted: 10/17/2022] [Indexed: 11/20/2022] Open
Abstract
The main objective of this research was to study the biological characteristics in terms of antioxidant and antimicrobial activities of Ajuga iva and determine the best analytical and extraction methods applicable to this specie and studied compounds. A short screening of its nutritional value in terms of chemical composition is also included. A. iva leaves were analyzed for crude protein (CP), cell wall [neutral detergent fiber (NDF), acid detergent fiber (ADF), and acid detergent lignin (ADL)], minerals, fatty acids, essential oils, and phenolic compounds. Mature aerial parts of A. iva were randomly collected during the Spring season from Mograne-Zaghouan, Tunisia. Leaves of A. iva contained 13.4 ± 0.4% CP, 26.3 ± 0.35% NDF, 20.2 ± 0.42% ADF, and 5.13 ± 0.21% ADL. Mineral content (13.0 ± 0.45%) was mainly composed of potassium (4.5% g DM) and magnesium (4.25% DM). Leaves of A. iva had linolenic (26.29 ± 0.760%) and linoleic (37.66 ± 2.35%) acids as the main components of the acid profile. Thymol was found to be the most dominant (23.43%) essential oil, followed by 4-vinylguaiacol (14.27%) and linalool (13.66%). HPLC-PDA-ESI-MS/MS analysis pointed out the presence of phytoecdysteroids. Phenolic acids and flavonoids, such as glycosylated derivatives of naringenin, eriodyctiol, and apigenin, were detected in the methanol extract of A. iva leaves. Our results underline the importance of choosing proper extraction methods and solvents to extract and characterize the described compounds profile of A. iva leaves. Results also show A. iva leaves as a potential source of functional ingredients with beneficial health-promoting properties. Overall, leaves of A. iva have low biological activities (antioxidant and antimicrobial activities) with a chemical composition suitable as a feed for ruminants in rangeland pasture. It also has low-grade antibacterial or medicinal characteristics when fed to ruminants.
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Affiliation(s)
- Hajer Ammar
- Laboratoire de Systèmes de Production Agricole et Développement Durable “SPADD”, University of Carthage, Ecole Supérieure d’Agriculture de Mograne, Mograne Zaghouan 1121, Tunisia
| | - Imen Touihri
- Laboratoire des Substances Naturelles, Institut National de Recherche et d’Analyse Physico-Chimique (INRAP), Biotechpôle de Sidi Thabet, Ariana 2020, Tunisia
| | - Ahmed Eid Kholif
- Dairy Science Department, National Research Centre, 33 Bohouth St. Dokki, Giza 12622, Egypt
| | - Yassine M’Rabet
- Laboratoire des Substances Naturelles, Institut National de Recherche et d’Analyse Physico-Chimique (INRAP), Biotechpôle de Sidi Thabet, Ariana 2020, Tunisia
| | - Rym Jaouadi
- Laboratoire de Systèmes de Production Agricole et Développement Durable “SPADD”, University of Carthage, Ecole Supérieure d’Agriculture de Mograne, Mograne Zaghouan 1121, Tunisia
| | - Mireille Chahine
- Department of Animal, Veterinary and Food Sciences, University of Idaho, 315 Falls Ave, Twin Falls, ID 83301, USA
| | | | - Einar Vargas-Bello-Pérez
- School of Agriculture, Policy and Development New Agriculture Building, University of Reading, Earley Gate Whiteknights Road, P.O. Box 237, Reading RG6 6EU, Berkshire, UK
| | - Karim Hosni
- Laboratoire des Substances Naturelles, Institut National de Recherche et d’Analyse Physico-Chimique (INRAP), Biotechpôle de Sidi Thabet, Ariana 2020, Tunisia
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13
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An updated and comprehensive review on the composition and preservation strategies of bovine colostrum and its contributions to animal health. Anim Feed Sci Technol 2022. [DOI: 10.1016/j.anifeedsci.2022.115379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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14
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Inclusion of Sunflower Oil, Organic Selenium, and Vitamin E on Milk Production and Composition, and Blood Parameters of Lactating Cows. Animals (Basel) 2022; 12:ani12151968. [PMID: 35953958 PMCID: PMC9367271 DOI: 10.3390/ani12151968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 07/21/2022] [Accepted: 07/30/2022] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Feeding sunflower oil, selenium, and vitamin E to lactating dairy cows has improved the nutritional profile of milk for human consumption and positively impacted animal performance. This may be attributed to the increased healthier fat components, i.e., “good fats”, and antioxidant substances in milk. This study evaluated the effects of supplementing sunflower oil, selenium, and vitamin E on milk production and composition, and the blood parameters of lactating dairy cows. Supplementing sunflower oil to lactating dairy cows provided beneficial effects on milk fatty acid profiles, increasing healthier fatty acids concentrations, which have been reported as important anticarcinogenic, antiatherogenic, and antidiabetic nutrients in human diet. However, this strategy reduced the milk fat content. Selenium and vitamin E supplementation improved milk production and provided higher selenium and vitamin E content in blood and milk. These compounds are important antioxidants and nutrients for animal and human health. Abstract Aiming to improve milk quality and animal health, the effects of the inclusion of sunflower oil with added organic selenium (Se) and vitamin E in the diets of lactating cows were evaluated. Twenty-four multiparous lactating Jersey cows were randomly enrolled into four treatments: CON (control); SEL [2.5 mg organic Se kg−1 dry matter (DM) + 1000 IU vitamin E daily]; SUN (sunflower oil 3% DM); and SEL + SUN (sunflower oil 3% DM + 2.5 mg organic Se kg−1 DM + 1000 IU vitamin E daily). The experimental period was 12 weeks with 14 days for acclimation. Cows were milked twice a day. Dry matter intake, milk production, and composition were measured daily and analyzed in a pooled 4-week sample. On day 84, white blood cell counts, as well as serum and milk Se and vitamin E levels, were assessed. Supplementation with selenium and vitamin E alone or combined with sunflower oil increased milk production, and increased the serum and milk concentrations of those nutrients. The inclusion of sunflower oil reduced fat content and DM intake but also altered the milk fatty acid profile, mainly increasing levels of trans 11 C18:1 (vaccenic) and cis 9 trans 11 conjugated linoleic acid (CLA). Our results indicate that supplementation with sunflower oil, Se and vitamin E provides beneficial effects on animal performance and milk composition, which could be an important source of CLA and antioxidants (Se and vitamin E) for human consumption.
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Wang X, Zhong P, Huang W, Zhang S, Zhang J, Wang X, Wang Q, Huang L, Wang J, Lu Y, Wang Z. Qualitative and quantitative mass spectrometry comparison of characteristic galactosyl lactose isomers from goat milk at different lactation stages. J Dairy Sci 2022; 105:7203-7215. [PMID: 35863928 DOI: 10.3168/jds.2021-21701] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 04/25/2022] [Indexed: 11/19/2022]
Abstract
Galactooligosaccharides are composed mainly of galactosyl lactose, which is important for infant growth and as a functional food additive. Although galactosyl lactose is abundant in goat milk, its complex structure has hindered the separation and analysis of its isomers. In this study, 5 isomers of goat milk galactosyl lactose were separated by HPLC: β6'-galactosyl lactose (β6'-GL), α6'-galactosyl lactose (α6'-GL), β4'-galactosyl lactose (β4'-GL), α3'-galactosyl lactose (α3'-GL), and β3'-galactosyl lactose (β3'-GL). This composition differs from that of commercial galactooligosaccharide products, which comprise mainly β-configuration oligosaccharides. The isomers were then qualitatively and quantitatively compared at different lactation stages using online HPLC-mass spectrometry. Relative quantitative analysis showed that the total content of the 5 galactosyl lactose isomers was highest in transitional goat milk. Specifically, β3'-GL was the main isomer in colostrum and α3'-GL was the main isomer in transitional and mature milk. β6'-Galactosyl lactose and β4'-GL tended to increase and then decrease during lactation. Moreover, α3'-GL content was 2 times higher than in colostrum and 10 times higher in transitional milk than in mature milk; in contrast, for β3'-GL, the values were 5 and 2 times higher, respectively. Absolute quantitative analysis revealed that β3'-GL was the most abundant isomers in colostrum (32.3 mg/L), and α3'-GL was the most abundant in transitional milk (88.1 mg/L) and mature milk (36.3 mg/L). These findings provide an important quantitative basis for understanding the relationship between structure and function of galactosyl lactose in goat milk, as well as its exploitation as a functional food.
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Affiliation(s)
- Xinyi Wang
- Shaanxi Natural Carbohydrate Resource Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Peiyun Zhong
- Shaanxi Natural Carbohydrate Resource Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Wenqi Huang
- Shaanxi Natural Carbohydrate Resource Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Shanshan Zhang
- Shaanxi Natural Carbohydrate Resource Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Jiaying Zhang
- Shaanxi Natural Carbohydrate Resource Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Xiaoqin Wang
- Shaanxi Natural Carbohydrate Resource Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Qingling Wang
- Shaanxi Natural Carbohydrate Resource Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Linjuan Huang
- Shaanxi Natural Carbohydrate Resource Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Jiansheng Wang
- Shaanxi Hongxing Meiling Dairy Co. Ltd., Fuping, 711700, China
| | - Yu Lu
- Shaanxi Natural Carbohydrate Resource Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China.
| | - Zhongfu Wang
- Shaanxi Natural Carbohydrate Resource Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China.
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Szterk A, Ofiara K, Strus B, Abdullaev I, Ferenc K, Sady M, Flis S, Gajewski Z. Content of Health-Promoting Fatty Acids in Commercial Sheep, Cow and Goat Cheeses. Foods 2022; 11:foods11081116. [PMID: 35454702 PMCID: PMC9028068 DOI: 10.3390/foods11081116] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 03/29/2022] [Accepted: 04/06/2022] [Indexed: 12/14/2022] Open
Abstract
The study aimed to examine samples of different market original sheep cow and goat cheeses, in respect of the content and profile of FA with special emphasis on health-promoting FA. The content of fatty acids in the examined cheeses was highly differentiated and depended on the sort and type of cheese. The content of fatty acid groups in milk fat varied within the limits: SFA, 55.2–67.2%; SCSFA, 10.9–23.4%; BCFA, 1.6–2.9%; MUFA, 15.2–23.4%; PUFA, 1.9–4.3%; trans-MUFA, 1.8–6.0%; and CLA, 1.0–3.1%. From among the examined cheeses, the seasonal sheep cheeses (Oscypek) and mountain cow cheeses were characterized by the highest content of health-promoting fatty acids. The content of health-promoting fatty acids in the fat fraction of these cheeses was CLA 2.1–3.1%, trans-MUFA 3.5–6%, BCFA 2.7–2.9%, and SCSFA 12–18%.
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Affiliation(s)
- Arkadiusz Szterk
- Transfer of Science Sp. z o.o., Strzygłowska 15, 04-872 Warsaw, Poland; (K.O.); (B.S.); (I.A.)
- Center for Translational Medicine, Warsaw University of Life Sciences, Nowoursynowska 100, 02-797 Warsaw, Poland; (K.F.); (M.S.); (S.F.); (Z.G.)
- Correspondence:
| | - Karol Ofiara
- Transfer of Science Sp. z o.o., Strzygłowska 15, 04-872 Warsaw, Poland; (K.O.); (B.S.); (I.A.)
| | - Bartosz Strus
- Transfer of Science Sp. z o.o., Strzygłowska 15, 04-872 Warsaw, Poland; (K.O.); (B.S.); (I.A.)
| | - Ilkhom Abdullaev
- Transfer of Science Sp. z o.o., Strzygłowska 15, 04-872 Warsaw, Poland; (K.O.); (B.S.); (I.A.)
| | - Karolina Ferenc
- Center for Translational Medicine, Warsaw University of Life Sciences, Nowoursynowska 100, 02-797 Warsaw, Poland; (K.F.); (M.S.); (S.F.); (Z.G.)
| | - Maria Sady
- Center for Translational Medicine, Warsaw University of Life Sciences, Nowoursynowska 100, 02-797 Warsaw, Poland; (K.F.); (M.S.); (S.F.); (Z.G.)
| | - Sylwia Flis
- Center for Translational Medicine, Warsaw University of Life Sciences, Nowoursynowska 100, 02-797 Warsaw, Poland; (K.F.); (M.S.); (S.F.); (Z.G.)
| | - Zdzisław Gajewski
- Center for Translational Medicine, Warsaw University of Life Sciences, Nowoursynowska 100, 02-797 Warsaw, Poland; (K.F.); (M.S.); (S.F.); (Z.G.)
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Lopez A, Bellagamba F, Savoini G, Moretti VM, Cattaneo D. Characterization of Fat Quality in Cow Milk from Alpine Farms as Influenced by Seasonal Variations of Diets. Animals (Basel) 2022; 12:ani12040515. [PMID: 35203223 PMCID: PMC8868097 DOI: 10.3390/ani12040515] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 02/09/2022] [Accepted: 02/16/2022] [Indexed: 02/04/2023] Open
Abstract
Simple Summary Milk produced in Alpine farms under pasture- and-grass-based feeding systems is characterized by beneficial nutritional traits, which are linked to its high fat quality. In this study, milk samples collected in two alpine farms set in the Italian Piedmont region were analyzed together with samples of feedstuffs (pasture, fresh grass, concentrates and total mixed ration) furnished to cows during summer and winter, when the feeding strategy was modified. The results suggested a favorable fat composition of all samples analyzed, with some differences detected between the seasons and the farms. The milk obtained following a pasture- or fresh-grass-based feeding strategy (during summer) showed a higher fat quality, which was characterized by higher amounts of beneficial fatty acids. Particularly, a distinctive fat composition of milk samples coming from cows exclusively fed on pasture during the summer season was evidenced. The outcomes obtained in this study contributed toward evaluating and promoting alpine dairy products from the Alpine region as products associated with an added value, with beneficial effects for both producers and consumers. Abstract The production systems linked to mountain animal husbandry have had an environmental, social and cultural role in recent years. Zootechnical systems based on feeding strategies, such as pasture grazing and grass-fed strategies, contribute to a significant increase in the relative amounts of favorable fatty acids (FAs) in animal products, indicating their ability to improve the long-term health of consumers. In this study, we compared different feeding strategies in two small mountain farms in the Piedmont Alpine region, Italy. Particularly, during the summer season, the two farms were distinguished by the exclusive employment of Alpine pasture (farm A), assumed as the best way to improve the quality of the FA profile in milk vs. the supply of daily fresh cut mountain grass plus a reduced implementation with hay and concentrates directly in the barn (farm B). The milk fatty acid profile was analyzed using gas chromatography. The results showed the high quality of alpine milk collected in the two farms. Even with some differences, particularly evidenced when comparing the summer diets, the milk FA profiles in farm A and farm B were favorable from a nutritional point of view in both seasons. Milk samples obtained using the exclusive employment of alpine grazing during summer were represented by an FA profile of higher quality (lower saturated FAs, higher branched FAs and monounsaturated FA, favorable n6/n3 ratio). However, milk obtained using the integrated strategy (fresh grass plus concentrates in the barn farm B) resulted in a more homogenous composition during the summer season, with a higher concentration of polyunsaturated FAs. These outcomes suggested that the integrated strategy, even if related to a lower ability in improving milk FA profile, could represent a valid and cost-effective alternative for mountain farmers to obtain an overall superior quality of milk, which was not strictly linked to the grazing practice. The multivariate analysis showed that information contained in the milk FA profile may provide a valuable tool that can distinguish mountain-grass-based diet.
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Abdoul-Aziz SKA, Zhang Y, Wang J. Milk Odd and Branched Chain Fatty Acids in Dairy Cows: A Review on Dietary Factors and Its Consequences on Human Health. Animals (Basel) 2021; 11:3210. [PMID: 34827941 PMCID: PMC8614267 DOI: 10.3390/ani11113210] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 11/01/2021] [Accepted: 11/02/2021] [Indexed: 12/17/2022] Open
Abstract
This review highlights the importance of odd and branched chain fatty acids (OBCFAs) and dietary factors that may affect the content of milk OBCFAs in dairy cows. Historically, OBCFAs in cow milk had little significance due to their low concentrations compared to other milk fatty acids (FAs). The primary source of OBCFAs is ruminal bacteria. In general, FAs and OBCFAs profile in milk is mainly affected by dietary FAs and FAs metabolism in the rumen. Additionally, lipid mobilization in the body and FAs metabolism in mammary glands affect the milk OBCFAs profile. In cows, supplementation with fat rich in linoleic acid and α-linolenic acid decrease milk OBCFAs content, whereas supplementation with marine algae or fish oil increase milk OBCFAs content. Feeding more forage rather than concentrate increases the yield of some OBCFAs in milk. A high grass silage rate in the diet may increase milk total OBCFAs. In contrast to saturated FAs, OBCFAs have beneficial effects on cardiovascular diseases and type II diabetes. Furthermore, OBCFAs may have anti-cancer properties and prevent Alzheimer's disease and metabolic syndrome.
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Affiliation(s)
| | | | - Jiaqi Wang
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Beijing 100193, China; (S.K.A.A.-A.); (Y.Z.)
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A Response Surface Methodology (RSM) Approach for Optimizing the Attenuation of Human IgE-Reactivity to β-Lactoglobulin (β-Lg) by Hydrostatic High Pressure Processing. Foods 2021; 10:foods10081741. [PMID: 34441519 PMCID: PMC8394912 DOI: 10.3390/foods10081741] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 07/22/2021] [Accepted: 07/23/2021] [Indexed: 12/02/2022] Open
Abstract
The response surface methodology (RSM) and central composite design (CCD) technique were used to optimize the three key process parameters (i.e., pressure, temperature and holding time) of the high-hydrostatic-pressure (HHP) processing either standalone or combined with moderate thermal processing to modulate molecular structures of β-lactoglobulin (β-Lg) and α-lactalbumin (α-La) with reduced human IgE-reactivity. The RSM model derived for HHP-induced molecular changes of β-Lg determined immunochemically showed that temperature (temp), pressure (p2) and the interaction between temperature and time (t) had statistically significant effects (p < 0.05). The optimal condition defined as minimum (β-Lg specific) IgG-binding derived from the model was 505 MPa at 56 °C with a holding time of 102 min (R2 of 0.81 and p-value of 0.01). The validation carried at the optimal condition and its surrounding region showed that the model to be underestimating the β-Lg structure modification. The molecular change of β-Lg was directly correlated with HHP-induced dimerization in this study, which followed a quadratic equation. The β-Lg dimers also resulted in the undetectable human IgE-binding.
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20
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Cui Q, Sun Y, Cheng J, Guo M. Effect of two-step enzymatic hydrolysis on the antioxidant properties and proteomics of hydrolysates of milk protein concentrate. Food Chem 2021; 366:130711. [PMID: 34343947 DOI: 10.1016/j.foodchem.2021.130711] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 07/20/2021] [Accepted: 07/25/2021] [Indexed: 01/11/2023]
Abstract
Food protein and peptides are generally considered a source of dietary antioxidants. The antioxidant activity and peptide profiles of four extensive hydrolysates of milk protein concentrate (MPC) were examined using the two-step enzymatic method. The hydrolysis combinations were Alcalase-Flavourzyme (AE), Alcalase-ProteAXH (AH), Alcalase-Protamex (AX) and Alcalase-Protease A 2SD (AD). The results showed that highest degree of hydrolysis corresponded to the AE sample (20.41%). High-efficiency gel-filtration chromatography results indicated that the relative proportions of extensive hydrolysates with molecular weights < 3 kDa were 99.89%, 99.57%, 99.93%, and 99.89% for AX, AE, AD and AH, respectively. The hydrolysates of the MPC exhibited increased radical-scavenging capacity, as evidenced through an analysis with 1,1-diphenyl-2-pycryl-hydrazyl (DPPH), 2,2-azinobis (3-ethylbenzothiazo-line-6-sulfonic acid) diammonium salt (ABTS), reducing power and hydroxyl-radical scavenging activity testing. The main bioactive peptides were identified through EASY-nLC-orbitrap MS/MS and bioinformatics. The study may provide useful information regarding the antioxidant properties of extensive hydrolysates of MPC.
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Affiliation(s)
- Qiang Cui
- College of Food Science, Northeast Agricultural University, Harbin 150030, China; Key Laboratory of Dairy Science of Ministry of Education, Northeast Agricultural University, Harbin 150030, China
| | - Yuxue Sun
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Jianjun Cheng
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Mingruo Guo
- College of Food Science, Northeast Agricultural University, Harbin 150030, China; Key Laboratory of Dairy Science of Ministry of Education, Northeast Agricultural University, Harbin 150030, China; Department of Nutrition and Food Sciences, College of Agriculture and Life Sciences, University of Vermont, Burlington 05405, United States.
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Khajeh E, Jamshidian-Mojaver M, Naeemipour M, Farzin H. The Identification of a Novel Peptide Derived from Lactoferrin Isolated from Camel Milk with Potential Antimicrobial Activity. IRANIAN JOURNAL OF MEDICAL MICROBIOLOGY 2021. [DOI: 10.30699/ijmm.15.3.302] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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22
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Mezzomo TR, Martins CAF, da Silva Marcondes DB, Mischiatti KL, Weffort-Santos AM. Assessment of the Functional Activities of Casein Phosphopeptides on Circulating Blood Leukocytes. Int J Pept Res Ther 2021. [DOI: 10.1007/s10989-021-10166-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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23
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Mahgoub S, Alagawany M, Nader M, Omar SM, Abd El-Hack ME, Swelum A, Elnesr SS, Khafaga AF, Taha AE, Farag MR, Tiwari R, Marappan G, El-Sayed AS, Patel SK, Pathak M, Michalak I, Al-Ghamdi ES, Dhama K. Recent Development in Bioactive Peptides from Plant and Animal Products and Their Impact on the Human Health. FOOD REVIEWS INTERNATIONAL 2021. [DOI: 10.1080/87559129.2021.1923027] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Samir Mahgoub
- Department of Agricultural Microbiology, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Mahmoud Alagawany
- Poultry Department, Faculty of Agriculture, Zagazig University, Zagazig Egypt
| | - Maha Nader
- Department of Agricultural Microbiology, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Safaa M. Omar
- Department of Agricultural Microbiology, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | | | - Ayman Swelum
- Department of Theriogenology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Shaaban S. Elnesr
- Department of Poultry Production, Faculty of Agriculture, Fayoum University, Fayoum, Egypt
| | - Asmaa F. Khafaga
- Department of Pathology, Faculty of Veterinary Medicine, Alexandria University, Edfina’ Egypt
| | - Ayman E. Taha
- Department of Animal Husbandry and Animal Wealth Development, Faculty of Veterinary Medicine, Alexandria University, Edfina’ Egypt
| | - Mayada R. Farag
- Forensic Medicine and Toxicology Department, Faculty of Veterinary Medicine, Zagazig University, Zagazig’ Egypt
| | - Ruchi Tiwari
- Department of Veterinary Microbiology and Immunology, College of Veterinary Sciences, Up Pandit Deen Dayal Upadhayay Pashu Chikitsa Vigyan Vishwavidyalay Evum Go-Anusandhan Sansthan (DUVASU), Mathura, Uttar Pradesh, India
| | - Gopi Marappan
- Division of Avian Physiology and Reproduction, ICAR-Central Avian Research Institute, Izatnagar, Bareilly, Uttar Pradesh, India
| | - Ashraf S. El-Sayed
- Botany and Microbiology Department, Faculty of Science, Zagazig University, Zagazig, Egypt
| | - Shailesh K. Patel
- Division of Pathology, ICAR-Indian Veterinary Research Institute Izatnagar, Bareilly- Uttar Pradesh, India
| | - Mamta Pathak
- Division of Pathology, ICAR-Indian Veterinary Research Institute Izatnagar, Bareilly- Uttar Pradesh, India
| | - Izabela Michalak
- Department of Advanced Material Technologies,Faculty of Chemistry, Wrocław University of Science and Technology, Wrocław’, Poland
| | - Etab S. Al-Ghamdi
- Department of Food and Nutrition, College of Human Sciences and Design, King Abdualziz University, Jeddah, Saudi Arabia
| | - Kuldeep Dhama
- Division of Pathology, ICAR-Indian Veterinary Research Institute Izatnagar, Bareilly- Uttar Pradesh, India
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Penev T, Naydenova N, Dimov D, Marinov I. Influence of Heat Stress and Physiological Indicators Related to It on Health Lipid Indices in Milk of Holstein-Friesian Cows. J Oleo Sci 2021; 70:745-755. [PMID: 33967167 DOI: 10.5650/jos.ess20251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The aim of the survey was to study the effect of heat stress (HS) on health lipid indices in milk of Holstein-Friesian cows. The study was conducted in a cattle farm with Holstein-Friesian cows in the region of Karnobat (Southeastern Bulgaria) in 2018. Cows were housed in semi-open free stall dairy barn, fed year-round ad libitum with a total mixed ration. The study included 22 cows on different parities studied in two periods - at thermo-neutral environment conditions and at heat stress, respectively, May and August. Extraction of milk fat was performed by the Rose-Gottlieb method. Conditions of HS lead to changes in the values of health lipid indices associated with a decrease in the values of Atherogenic index (AI), Thrombogenic index (TI), Lipid Preventive Score (LPS) and Desaturase (18) index (DI 18) and an increase in Health promoting Index (HPI), polyunsaturated fatty acids/saturated fatty acids (PUFA/SFA), unsaturated fatty acids/saturated fatty acids (UFA/SFA), mono unsaturated fatty acids (MUFA), Desaturase (16) index (DI 16) and hypocholesterolaemic/hypercholesterolaemic ratio (h/H). Increasing the Temperature-humidity index (THI) above 72, results in a decrease in the AI values and an increase in those of the PUFA/SFA. The values of health lipid indices showed a moderate positive correlation with those of THI (PUFA/SFA - 0.36) with rectal temperature (h/H, MUFA/SFA, UFA/SFA) rp from 0.36 to 0.37, and with respiratory rate (h/H, PUFA/SFA), rp of 0.33 and 0.31, respectively. Under the influence of heat stress, changes in the metabolic processes occur in the body of dairy cows leading to changes in the fatty acid content of milk related to the improvement of health lipid indices in terms of human health due to an increase in UFA and reduction in SFA.
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Affiliation(s)
- Toncho Penev
- Department of Applied Ecology and Animal Hygiene, Faculty of Agriculture, Trakia University
| | - Nikolina Naydenova
- Department of Animal Husbandry - Ruminants and Dairy Farming, Faculty of Agriculture, Trakia University
| | - Dimo Dimov
- Department of Applied Ecology and Animal Hygiene, Faculty of Agriculture, Trakia University
| | - Ivaylo Marinov
- Department of Animal Husbandry - Ruminants and Dairy Farming, Faculty of Agriculture, Trakia University
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25
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Mencin M, Abramovič H, Zlatić E, Demšar L, Piskernik S, Schreiner M, Žmitek K, Kušar A, Pravst I, Vidrih R. Content of trans-fatty acid isomers in bakery products on the Slovenian market. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111095] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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26
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Jin D, Liu H, Bu L, Ke Q, Li Z, Han W, Zhu S, Liu C. Comparative Analysis of Whey Proteins in Human Milk Using a Data-Independent Acquisition Proteomics Approach during the Lactation Period. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:4319-4330. [PMID: 33788563 DOI: 10.1021/acs.jafc.1c00186] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Human milk (HM) is the primary source of nutrients and bioactive components that supports the growth and development of infants. However, the proteins present in human milk may change depending on the period of lactation. In this light, the objective of the present study was to evaluate the effect of lactation period on HM utilizing a data-independent acquisition (DIA) approach to identify the differences in HM whey protein proteomes. As part of the study, whey proteins of January, February, and June in human milk were studied. The results identified a total of 1563 proteins in HM whey proteins of which 114 groups were subunits of differentially expressed proteins as revealed by cluster analysis. Protein expression was observed to be affected by the period of lactation with expression levels of plasminogen, thrombospondin-1, and tenascin higher during January, keratin, type I cytoskeletal 9 highest in February, and transcobalamin-1 highest in June. The results of this study contribute to expand our understanding of the human whey proteome but also provide strong evidence for the nutritional difference of HM during different lactation periods.
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Affiliation(s)
- Dengpeng Jin
- The Key Laboratory of Food Quality and Safety of Guangdong Province, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Huan Liu
- The Key Laboratory of Food Quality and Safety of Guangdong Province, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Lingling Bu
- The Key Laboratory of Food Quality and Safety of Guangdong Province, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Qianhua Ke
- The Key Laboratory of Food Quality and Safety of Guangdong Province, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Zhongyi Li
- The Key Laboratory of Food Quality and Safety of Guangdong Province, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Wenna Han
- The Key Laboratory of Food Quality and Safety of Guangdong Province, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Siyu Zhu
- The Key Laboratory of Food Quality and Safety of Guangdong Province, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Chunhong Liu
- The Key Laboratory of Food Quality and Safety of Guangdong Province, College of Food Science, South China Agricultural University, Guangzhou 510642, China
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27
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El-Gawad AMA, El-Hassan DGA, Aboul-Enein AM, Abdelgayed SS, Aly SA, Esmat G, Mostafa AA, Bakr MH, Ali RA, Ayoub MA. Anticancer activity of milk fat rich in conjugated linoleic acid against Ehrlich ascites carcinoma cells in female Swiss albino mice. Vet World 2021; 14:696-708. [PMID: 33935416 PMCID: PMC8076465 DOI: 10.14202/vetworld.2021.696-708] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 02/02/2021] [Indexed: 12/15/2022] Open
Abstract
Background and Aim: The major conjugated linoleic acid (CLA) isomers have anticancer effect, especially breast cancer cells, inhibits cell growth and induces cell death. Also, CLA has several health benefits in vivo, including antiatherogenesis, antiobesity, and modulation of immune function. The present study aimed to assess the safety and anticancer effects of milk fat CLA against in vivo Ehrlich ascites carcinoma (EAC) in female Swiss albino mice. This was based on acute toxicity study, detection of the tumor growth, life span of EAC bearing hosts, and simultaneous alterations in the hematological, biochemical, and histopathological profiles. Materials and Methods: One hundred and fifty adult female mice were equally divided into five groups. Groups (1-2) were normal controls, and Groups (3-5) were tumor transplanted mice (TTM) inoculated intraperitoneally with EAC cells (2×106/0.2 mL). Group (3) was (TTM positive control). Group (4) TTM fed orally on balanced diet supplemented with milk fat CLA (40 mg CLA/kg body weight). Group (5) TTM fed orally on balanced diet supplemented with the same level of CLA 28 days before tumor cells inoculation. Blood samples and specimens from liver and kidney were collected from each group. The effect of milk fat CLA on the growth of tumor, life span of TTM, and simultaneous alterations in the hematological, biochemical, and histopathological profiles were examined. Results: For CLA treated TTM, significant decrease in tumor weight, ascetic volume, viable Ehrlich cells accompanied with increase in life span were observed. Hematological and biochemical profiles reverted to more or less normal levels and histopathology showed minimal effects. Conclusion: The present study proved the safety and anticancer efficiency of milk fat CLA and provides a scientific basis for its medicinal use as anticancer attributable to the additive or synergistic effects of its isomers.
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Affiliation(s)
| | - Diea G Abo El-Hassan
- Department of Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Ahmed M Aboul-Enein
- Department of Biochemistry, Faculty of Agriculture, Cairo University, Giza, Egypt
| | - Sherein S Abdelgayed
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Salwa A Aly
- Department of Food Hygiene, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Gamal Esmat
- Department of Hepatogastroenterology and Infectious Diseases, Faculty of Medicine, Cairo University, Giza, Egypt
| | - Amr A Mostafa
- Department of Biochemistry, Faculty of Agriculture, Cairo University, Giza, Egypt
| | - Mohamed H Bakr
- Department of Animal Production, Faculty of Agriculture, Cairo University, Giza, Egypt
| | - Rida A Ali
- Department of Animal Production, Faculty of Agriculture, Cairo University, Giza, Egypt
| | - Mahmoud A Ayoub
- Department of Clinical and Chemical Pathology, National Cancer Institute, Cairo University, Giza, Egypt
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28
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Bailoni L, Bacchin E, Trocino A, Arango S. Hemp ( Cannabis sativa L.) Seed and Co-Products Inclusion in Diets for Dairy Ruminants: A Review. Animals (Basel) 2021; 11:856. [PMID: 33803004 PMCID: PMC8002700 DOI: 10.3390/ani11030856] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 03/15/2021] [Accepted: 03/15/2021] [Indexed: 02/07/2023] Open
Abstract
Recently, hemp (Cannabis Sativa L.) was rediscovery as a plant that offers a wide variety of applications (textile, pharmaceuticals, construction, etc.), including also the use in animal and human nutrition. The inclusion of whole seeds and co-products obtained by processing of seeds (cake, meal, and oil) in the diets of farm animals can allow the transfer of bioactive substances to human food. Few publications are available on the use of hemp in dairy ruminants but some authors reported a positive effect on the fatty acids profile of milk and cheese with an increase of n-3 fatty acids and c9,t11 conjugated linoleic acid. The protein content, amino acids profile, and rumen undegradable protein (RUP) of hempseed and co-products of hemp appear interesting and suitable for ruminant nutrition. Negative effects of anti-nutritional factors (i.e., phytate) are not observed. However, the researches on the effects of the use of hempseed and co-products in diets for dairy ruminants do not allow to suggest optimal levels of inclusion. In addition, no data are published on the use of whole or part of the hemp plant as forage, as another possibility to use the hemp in the perspective of the circular economy.
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Affiliation(s)
- Lucia Bailoni
- Department of Comparative Biomedicine and Food Science (BCA), University of Padova, Viale dell’Universitá 16, 35020 Legnaro, PD, Italy; (E.B.); (A.T.); (S.A.)
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29
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Chawafambira A, Nyoni Q, Mkungunugwa T. The potential of utilizing Provitamin A-biofortified maize in producing mutwiwa, a Zimbabwean traditional fermented food. Food Sci Nutr 2021; 9:1521-1529. [PMID: 33747466 PMCID: PMC7958571 DOI: 10.1002/fsn3.2125] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 12/28/2020] [Accepted: 12/29/2020] [Indexed: 11/30/2022] Open
Abstract
Biofortification interventions have the potential to combat micronutrient deficiencies, such as vitamin A deficiency (VAD), which is prevalent in Zimbabwe. The poor acceptability of provitamin A (PVA)-biofortified maize is still a challenge that exists in Zimbabwe. This study investigated the effect of replacing white maize (WM) with PVA-biofortified maize on the nutritional composition of mutwiwa, a Zimbabwean traditional food, and its microbiological safety. Chemical and microbiological tests were conducted using AOAC standard methods. Total carotene content was 12.78 µg/g dry weight (DW) in PVA-biofortified maize and 1.52 µg/g DW in WM. The proximate composition of PVA-biofortified mutwiwa (PVABM) was 5.2, 28.6, 2.1, 62.2, and 2.0 g/100 g wet basis (w.b) for protein, carbohydrates fiber, moisture, and ash, respectively. Total soluble solids, β-carotene, vitamin C, and vitamin A contents were 3.6 oBrix, 110 µg/100 g, 0.54 mg/100 g, and 9 µg REA/100 g, respectively. Lysine, phenylalanine, and histidine contents were 0.71, 1.15, and 0.56 g/100 g w.b, respectively. Iron, calcium, phosphorus, and zinc content were 7.8, 60.5, 410.8, and 60 mg/100 g w.b, respectively. Mesophilic bacteria, lactic acid bacteria, coliforms, yeast, and molds were all <1 Log CFU/ml. The nutritional, amino acid and mineral contents were significantly different (p < .05). In conclusion, the results of this study were satisfying and recommend the processing of PVA-biofortified maize as a potential strategy to combat VAD and mineral malnutrition in Zimbabwe and other regions in Sub-Saharan Africa.
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Affiliation(s)
- Armistice Chawafambira
- Department of Food Science and TechnologyChinhoyi University of TechnologyChinhoyiZimbabwe
| | - Qhubekani Nyoni
- Department of Food Science and TechnologyChinhoyi University of TechnologyChinhoyiZimbabwe
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30
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Yuda N, Tanaka M, Tokushima M, Abe F. Safety evaluation of high-dose intake of casein-derived peptide Met-Lys-Pro in healthy adults: A randomized, double-blind, placebo-controlled trial. Food Sci Nutr 2021; 9:662-671. [PMID: 33598151 PMCID: PMC7866589 DOI: 10.1002/fsn3.2028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 10/22/2020] [Accepted: 11/10/2020] [Indexed: 12/15/2022] Open
Abstract
Met-Lys-Pro (MKP) is a casein-derived angiotensin I-converting enzyme inhibitory peptide with the potential to cross the blood-brain barrier. It has shown preventive effects against high blood pressure (BP) and cognitive decline in animal models and human studies. MKP shows good water solubility and can be blended into a variety of foods. However, its ease of intake may contribute to the possibility of overdose. Therefore, we aimed to evaluate the safety of high-dose intake of MKP in healthy adults by conducting a randomized controlled trial with 30 subjects. Participants were randomly allocated to the MKP (n = 15) or placebo (n = 15) group. Over 4 weeks, the MKP group received test powder containing a daily dose of 1,000 μg of MKP, five times the minimum effective dose for cognitive improvement, whereas the placebo group received dextrin powder containing no detectable MKP. No clinical problems were observed in anthropometric and BP measurements or in blood and urine parameters. No adverse events owing to MKP intake were observed. These findings suggest that consumption of MKP is safe, and that it may be applicable as a safe preventive measure against hypertension and cognitive decline in future.
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Affiliation(s)
- Naoki Yuda
- Food Ingredients and Technology InstituteMorinaga Milk Industry Co., Ltd.KanagawaJapan
| | - Miyuki Tanaka
- Food Ingredients and Technology InstituteMorinaga Milk Industry Co., Ltd.KanagawaJapan
| | | | - Fumiaki Abe
- Food Ingredients and Technology InstituteMorinaga Milk Industry Co., Ltd.KanagawaJapan
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31
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Ross M, Atalla H, Karrow N, Mallard BA. The bioactivity of colostrum and milk exosomes of high, average, and low immune responder cows on human intestinal epithelial cells. J Dairy Sci 2020; 104:2499-2510. [PMID: 33358817 DOI: 10.3168/jds.2020-18405] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 08/04/2020] [Indexed: 01/27/2023]
Abstract
Bovine milk contains bioactive components that are nutritionally and immunologically important to calves and humans. Dairy cows classified as high (H) immune responders using the patented high immune response technology have higher concentrations of immunoglobulin and specific antibodies in sera and milk compared with average (A) and low (L) responders. MicroRNA post-transcriptionally regulate expression of milk bioactive components and are enriched in extracellular vesicles known as exosomes, which protect them from degradation. The bioactivity of colostrum and milk exosomes at the human intestinal epithelial barrier remains to be explored, particularly in the context of the high immune response technology. Therefore, the purpose of this study was to evaluate the functional role of bovine milk exosomes compared with colostrum exosomes from H, A, and L responders at the intestinal interface using human colorectal adenocarcinoma epithelial (Caco-2) cells. Exosomes were isolated by successive ultracentrifugation and confirmed by western blot analysis for the presence of common exosomal proteins (CD9, CD63, and heat shock protein 70). Fluorescent labeling of exosomes using PKH67 dye confirmed their uptake by Caco-2 cells, demonstrating their potential bioavailability. The MTT assays showed that colostrum and milk exosomes maintain Caco-2 metabolic activity and are not cytotoxic to these cells. Specifically, metabolic activity after co-incubation with colostrum and milk exosomes from H responder cows was significantly greater than after co-incubation with exosomes from L responders. Caspase 3 activity, an indicator of apoptosis, was significantly lower after co-incubation of Caco-2 cells with milk exosomes compared with colostrum exosomes, suggesting that unlike colostrum exosomes, particularly those from L responders, milk exosomes do not activate the caspase 3 pathway in Caco-2 cells. This study helps us better understand the functional importance of colostrum and milk exosomes from dairy cows and emphasizes differences in functionality among exosomes from H, A, and L immune responders.
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Affiliation(s)
- Mikayla Ross
- Department of Pathobiology, Centre for Genetic Improvement of Livestock, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - Heba Atalla
- Department of Pathobiology, Centre for Genetic Improvement of Livestock, University of Guelph, Guelph, ON, N1G 2W1, Canada; Department of Animal Biosciences, Centre for Genetic Improvement of Livestock, University of Guelph, Guelph, ON, N1G 2W1, Canada.
| | - Niel Karrow
- Department of Animal Biosciences, Centre for Genetic Improvement of Livestock, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - Bonnie A Mallard
- Department of Pathobiology, Centre for Genetic Improvement of Livestock, University of Guelph, Guelph, ON, N1G 2W1, Canada; Department of Animal Biosciences, Centre for Genetic Improvement of Livestock, University of Guelph, Guelph, ON, N1G 2W1, Canada
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32
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Westerik N, Nelson A, Wacoo AP, Sybesma W, Kort R. A Comparative Interrupted Times Series on the Health Impact of Probiotic Yogurt Consumption Among School Children From Three to Six Years Old in Southwest Uganda. Front Nutr 2020; 7:574792. [PMID: 33363193 PMCID: PMC7756026 DOI: 10.3389/fnut.2020.574792] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Accepted: 11/19/2020] [Indexed: 12/12/2022] Open
Abstract
Introduction: Following a school milk feeding program in Southwest Uganda, we initiated a probiotic yogurt school feeding program in the same region in 2018. In order to investigate the potential health benefits from probiotic yogurt we conducted an observational study, where we compared the effect of the consumption of locally produced probiotic yogurt containing Lactobacillus rhamnosus yoba 2012 to milk in pre-primary schoolchildren from different schools on the occurrence of respiratory tract infections (common cold) and skin infections (e.g., tinea capitis). Method: A comparative interrupted time series over a period of 3 weeks of baseline followed by 9 weeks of 100 ml of probiotic yogurt or milk consumption for 5 days per week. In total 584 children attending five different schools were followed during consumption of probiotic yogurt and 532 children attending five other schools during consumption of milk. Incidences of respiratory tract infection symptoms and skin infection symptoms, changes in anthropometric indicators and absenteeism were recorded. Results: Over the course of the study period the incidence rate for common cold symptoms decreased faster in the yogurt group than in the milk group (p = 0.09) resulting in a final RR of 0.85 (95% CI: 0.5-1.4) at the end of the observational period. The incidence rate of skin infection related symptoms also reduced faster in the yogurt group compared to the milk group (p < 0.0001) resulting in a relative risk factor (RR) of 0.6 (CI: 0.4-0.9) at the end of the observational period. Anthropometric indicators and level of absenteeism did not show significant differences between yogurt and milk. Conclusion: Notwithstanding the observed positive trend and effect of probiotic yogurt on the incidences of common cold and skin infections, respectively, we consider the results of this comparative interrupted time series inconclusive due to differences in the recorded health parameters between the probiotic yogurt and milk control groups at base line, and fluctuations over the course of the intervention period. An improved study design, with more uniform study groups, a longer intervention period and a third control group without yogurt or milk is required to draw definitive conclusions.
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Affiliation(s)
- Nieke Westerik
- Yoba for Life Foundation, Amsterdam, Netherlands
- Department of Molecular Cell Biology, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | | | - Alex Paul Wacoo
- Yoba for Life Foundation, Amsterdam, Netherlands
- Department of Molecular Cell Biology, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
- Department of Food Technology and Nutrition, School of Food Technology Nutrition and Bioengineering, College of Agricultural and Environmental Sciences, Makerere University, Kampala, Uganda
| | | | - Remco Kort
- Yoba for Life Foundation, Amsterdam, Netherlands
- Department of Molecular Cell Biology, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
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Kaur A, Kehinde BA, Sharma P, Sharma D, Kaur S. Recently isolated food-derived antihypertensive hydrolysates and peptides: A review. Food Chem 2020; 346:128719. [PMID: 33339686 DOI: 10.1016/j.foodchem.2020.128719] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 11/06/2020] [Accepted: 11/20/2020] [Indexed: 12/13/2022]
Abstract
Hypertension is a non-communicable disease characterized by elevated blood pressure, and a prominent metabolic syndrome of modern age. Food-borne bioactive peptides have shown considerable potencies as suitable therapeutic agents for hypertension. The peptide inhibition of the angiotensin I-converting enzyme (ACE) from its default biochemical conversion of Ang I to Ang II has been studied and more relatively adopted in several studies. This review offers an examination of the isolation of concomitant proteins in foods, their hydrolysis into peptides and the biofunctionality checks of those peptides based on their anti-hypertensive potentialities. Furthermore, critical but concise details about methodologies and analytical techniques used in the purification of such peptides are discussed. This review is a beneficial literature supplement for scholars and provides functional awareness material for the food-aligned alternative therapy for hypertension. In addition, it points researchers in the direction of adopting food materials and associated by-products as natural sources for the isolation biologically active peptides.
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Affiliation(s)
- Arshdeep Kaur
- Department of Food Technology and Nutrition, School of Agriculture, Lovely Professional University, Jalandhar-Delhi GT Road, Phagwara 144411, Punjab, India
| | | | - Poorva Sharma
- Department of Food Technology and Nutrition, School of Agriculture, Lovely Professional University, Jalandhar-Delhi GT Road, Phagwara 144411, Punjab, India.
| | - Deepansh Sharma
- Amity Institute of Microbial Technology, Amity University Rajasthan, India
| | - Sawinder Kaur
- Department of Food Technology and Nutrition, School of Agriculture, Lovely Professional University, Jalandhar-Delhi GT Road, Phagwara 144411, Punjab, India
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34
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Devant M, Marti S. Strategies for Feeding Unweaned Dairy Beef Cattle to Improve Their Health. Animals (Basel) 2020; 10:E1908. [PMID: 33080998 PMCID: PMC7603113 DOI: 10.3390/ani10101908] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Revised: 10/13/2020] [Accepted: 10/13/2020] [Indexed: 12/22/2022] Open
Abstract
In order to answer the question of whether nutritional interventions may help to reduce the incidence of respiratory disease in dairy beef calves at arrival, the present review is divided in three sections. In the first section, the nutrition of calves previous to the arrival from the origin farm to the final rearing farm is reviewed. In the second section, the possible consequences of this previous nutrition on gut health and immune status upon arrival to the rearing farm are described. The main consequences of previous nutrition and management that these unweaned calves suffer at arrival are the negative energy balance, the increased intestinal permeability, the oxidative stress, the anemia, and the recovery feed consumption. Finally, in the third section, some considerations to advance in future nutritional strategies are suggested, which are focused on the prevention of the negative consequences of previous nutrition and the recovery of the gut and immune status. Moreover, additional suggestions are formulated that will be also helpful to reduce the incidence of bovine respiratory disease (BRD) that are not directly linked to nutrition like having a control golden standard in the studies or designing risk categories in order to classify calves as suitable or not to be transported.
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Affiliation(s)
- Maria Devant
- Ruminant Production, IRTA, Torre Marimon, 08140 Caldes de Montbui, Spain;
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35
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Chopra A, Ali SA, Bathla S, Rawat P, Vohra V, Kumar S, Mohanty AK. High-Resolution Mass Spectrometer-Based Ultra-Deep Profile of Milk Whey Proteome in Indian Zebu ( Sahiwal) Cattle. Front Nutr 2020; 7:150. [PMID: 33072792 PMCID: PMC7533583 DOI: 10.3389/fnut.2020.00150] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 07/27/2020] [Indexed: 12/18/2022] Open
Abstract
Milk serves as a mode of protection to neonate through transferring the host defense proteins from mother to offspring. It also guards the mammary gland against various types of infections. Along with the presence of six vital proteins, bovine milk (whey) contains a massive class of minor proteins, not all of which have been comprehensively reported. In this study, we performed an LC-MS/MS-based ultra-deep identification of the milk whey proteome of Indian zebu (Sahiwal) cattle. Three independent search engines that are Comet, Tandem, and Mascot-based analysis resulted in the discovery of over 6,210 non-redundant proteins commonly identified. Genome-wise mapping revealed that chromosome 1 showed a minimum expression of 14 proteins, whereas chromosome 19 expressed 250 maximum proteins in milk whey. These results demonstrate that milk proteome in Sahiwal cattle is quite complicated, and minor milk fractions play a significant role in host defense.
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Affiliation(s)
- Alka Chopra
- Proteomics and Cell Biology Lab, Animal Biotechnology Center, National Dairy Research Institute, Karnal, India
| | - Syed Azmal Ali
- Proteomics and Cell Biology Lab, Animal Biotechnology Center, National Dairy Research Institute, Karnal, India
| | - Shveta Bathla
- Yale University School of Medicine, New Haven, CT, United States
| | - Preeti Rawat
- Proteomics and Cell Biology Lab, Animal Biotechnology Center, National Dairy Research Institute, Karnal, India
| | - Vikas Vohra
- Animal Genetics and Breeding Division, National Dairy Research Institute, Karnal, India
| | - Sudarshan Kumar
- Proteomics and Cell Biology Lab, Animal Biotechnology Center, National Dairy Research Institute, Karnal, India
| | - Ashok Kumar Mohanty
- Proteomics and Cell Biology Lab, Animal Biotechnology Center, National Dairy Research Institute, Karnal, India
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VIANA MP, FERNANDES SADA, SILVA AGD, PEDREIRA MDS, VIANA PT, RODRIGUES VS, LACERDA ECQ. Fraud with the addition of cow's milk alters the lipid fraction of buffalo mozzarella. FOOD SCIENCE AND TECHNOLOGY 2020. [DOI: 10.1590/fst.19619] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Ding J, Liao N, Zheng Y, Yang L, Zhou H, Xu K, Han C, Luo H, Qin C, Tang C, Wei L, Meng H. The Composition and Function of Pigeon Milk Microbiota Transmitted From Parent Pigeons to Squabs. Front Microbiol 2020; 11:1789. [PMID: 32849405 PMCID: PMC7417789 DOI: 10.3389/fmicb.2020.01789] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 07/08/2020] [Indexed: 12/11/2022] Open
Abstract
Mammalian neonates obtain antibodies, nutrients, and microbiota from breast milk that help them resist the complex growth environment. Similar to mammals' lactation behavior for their offspring, parent pigeons regurgitate pigeon milk (PM) from their crops to feed the squabs. Whether pigeon milk is as valuable as mammalian milk is not clear, especially in terms of microbiota. This study adopted 16S rRNA gene sequencing to investigate the microbial composition and function in pigeon milk. We found abundant microbiota in pigeon milk. The dominant genera in parent pigeons' milk were Lactobacillus, Enterococcus, Veillonella, and Bifidobacterium. An analysis of squab milk (SM) showed that Lactobacillus also accounted for a considerable proportion, followed by Bifidobacterium. Most of the squab milk microbial genera were also detected in parent pigeons. Microbial functional analysis showed that the squab milk microbes were more involved in the pathways of carbohydrate metabolism, amino acid metabolism, and energy metabolism. These findings indicated that microbiota play an important role in squabs and can be transmitted from parent pigeons to squabs by pigeon milk. The presence of plentiful probiotics in squabs also suggests that adding probiotics in artificial pigeon milk may promote the growth and development of squabs and improve the production performance of pigeons.
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Affiliation(s)
- Jinmei Ding
- Shanghai Key Laboratory of Veterinary Biotechnology, Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Nan Liao
- Shanghai Key Laboratory of Veterinary Biotechnology, Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Yuming Zheng
- Shanghai Key Laboratory of Veterinary Biotechnology, Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Lingyu Yang
- Shanghai Key Laboratory of Veterinary Biotechnology, Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Hao Zhou
- Shanghai Key Laboratory of Veterinary Biotechnology, Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Ke Xu
- Shanghai Key Laboratory of Veterinary Biotechnology, Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Chengxiao Han
- Shanghai Key Laboratory of Veterinary Biotechnology, Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Huaixi Luo
- Shanghai Key Laboratory of Veterinary Biotechnology, Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Chao Qin
- Shanghai Key Laboratory of Veterinary Biotechnology, Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Chunhong Tang
- Shanghai Xinrong Big Emperor Pigeon Breeding Professional Cooperation, Shanghai, China
| | - Longxing Wei
- Fengxian District Animal Disease Prevention and Control Center, Shanghai, China
| | - He Meng
- Shanghai Key Laboratory of Veterinary Biotechnology, Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
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Functional milk proteome analysis of genetically diverse goats from different agro climatic regions. J Proteomics 2020; 227:103916. [PMID: 32711164 DOI: 10.1016/j.jprot.2020.103916] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 06/18/2020] [Accepted: 07/17/2020] [Indexed: 12/22/2022]
Abstract
Goat milk, a choice of substitution to mother's milk for its composition, fulfils nutritional requirement of infants, pregnant mothers and older people. The present study was carried out to unravel the milk proteome profiles from geographically and genetically diverse goat breeds by gel based 2DE and nLC-MS/MS. A total of 1307 functional proteins comprising casein and other low abundance proteins were identified. Gene annotations revealed that the majority of the proteins were involved in binding function, catalytic activity and structural molecules and localised in nucleus and membrane. The distinguished proteins were involved in 144 KEGG pathways in information processing, metabolism, cellular process, organismal systems and diseases. The large number of proteins and peptides including bioactive peptides were reported from goat milk from diverse agro-climatic regions of India indicating their significant potential for human health applications. SIGNIFICANCE: Goat milk in India is used in various Ayurvedic formulations to treat a number of ailments and allergies as well as for nutraceutical formulations. The study identifies milk protein variants both at protein and DNA level and subsequent identification of proteins by 2DE and nLC-MS/MS resulting in a proteome comprising of 1307 proteins. The specific proteins and peptides having significant role in immune regulation, disease pathways, cellular growth and metabolism have been identified. The results contribute to goat milk protein and peptide database which is very limited. We identified proteins for specific functional categories and associated them with different pathways for studying functional diversity of goat milk proteins. The proteins and peptides identified can be used for multiple human health application.
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Potočnik D, Strojnik L, Eftimov T, Levart A, Ogrinc N. Fatty Acid and Stable Carbon Isotope Composition of Slovenian Milk: Year, Season, and Regional Variability. Molecules 2020; 25:molecules25122892. [PMID: 32586041 PMCID: PMC7356875 DOI: 10.3390/molecules25122892] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 06/19/2020] [Accepted: 06/21/2020] [Indexed: 02/06/2023] Open
Abstract
This study examined the percentage and stable isotope ratios of fatty acids in milk to study seasonal, year, and regional variability. A total of 231 raw cow milk samples were analyzed. Samples were taken twice per year in 2012, 2013, and 2014, in winter and summer, covering four distinct geographical regions in Slovenia: Mediterranean, Alpine, Dinaric, and Pannonian. A discriminant analysis model based on fatty acid composition was effective in discriminating milk according to the year/season of production (86.9%), while geographical origin discrimination was less successful (64.1%). The stable isotope composition of fatty acids also proved to be a better biomarker of metabolic transformation processes in ruminants than discriminating against the origin of milk. Further, it was observed that milk from Alpine and Mediterranean regions was healthier due to its higher percentage of ω-3 polyunsaturated fatty acid and conjugated linoleic acid.
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Affiliation(s)
- Doris Potočnik
- Department of Environmental Sciences, Jožef Stefan Institute, Jamova cesta 39, 1000 Ljubljana, Slovenia; (D.P.); (L.S.)
- Jožef Stefan International Postgraduate School, Jamova cesta 39, 1000 Ljubljana, Slovenia;
| | - Lidija Strojnik
- Department of Environmental Sciences, Jožef Stefan Institute, Jamova cesta 39, 1000 Ljubljana, Slovenia; (D.P.); (L.S.)
- Jožef Stefan International Postgraduate School, Jamova cesta 39, 1000 Ljubljana, Slovenia;
| | - Tome Eftimov
- Jožef Stefan International Postgraduate School, Jamova cesta 39, 1000 Ljubljana, Slovenia;
- Computer Systems, Jožef Stefan Institute, Jamova cesta 39, 1000 Ljubljana, Slovenia
| | - Alenka Levart
- Department of Animal Science, Chair of Nutrition, Biotechnical Faculty, Groblje 3, 1230 Domžale, Slovenia;
| | - Nives Ogrinc
- Department of Environmental Sciences, Jožef Stefan Institute, Jamova cesta 39, 1000 Ljubljana, Slovenia; (D.P.); (L.S.)
- Jožef Stefan International Postgraduate School, Jamova cesta 39, 1000 Ljubljana, Slovenia;
- Correspondence: ; Tel.: +386-15885387
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Granic A, Hurst C, Dismore L, Aspray T, Stevenson E, Witham MD, Sayer AA, Robinson S. Milk for Skeletal Muscle Health and Sarcopenia in Older Adults: A Narrative Review. Clin Interv Aging 2020; 15:695-714. [PMID: 32546988 PMCID: PMC7247608 DOI: 10.2147/cia.s245595] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Accepted: 03/21/2020] [Indexed: 12/19/2022] Open
Abstract
Skeletal muscle aging manifests as a decline in muscle quantity and quality that accelerates with aging, increasing the risk of sarcopenia. Sarcopenia is characterized by a loss of muscle strength and mass, and contributes to adverse health outcomes in older adults. Intervention studies have shown that sarcopenia may be treated by higher protein intake in combination with resistance exercise (RE). In comparison, less is known about the role of whole protein-containing foods in preventing or treating sarcopenia. Liquid milk contains multiple nutrients and bioactive components that may be beneficial for muscle, including proteins for muscle anabolism that, alone or with RE, may have myoprotective properties. However, there is a lack of evidence about the role of milk and its effects on muscle aging. This narrative review considers evidence from three observational and eight intervention studies that used milk or fortified milk, with or without exercise, as an intervention to promote muscle health and function in older adults (aged 50–99 years). The observational studies showed no association between higher habitual milk consumption and muscle-related outcomes. The results of intervention studies using fortified milk in relation to elements of sarcopenia were also negative, with further inconclusive results from the studies using a combination of (fortified) milk and exercise. Although milk contains nutrients that may be myoprotective, current evidence does not show beneficial effects of milk on muscle health in older adults. This could be due to high habitual protein intakes (>1.0 g/kg BW/d) in study participants, differences in the type of milk (low-fat vs whole) and timing of milk consumption, length of interventions, as well as differences in the sarcopenia status of participants in trials. Adequately powered intervention studies of individuals likely to benefit are needed to test the effectiveness of a whole food approach, including milk, for healthy muscle aging.
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Affiliation(s)
- Antoneta Granic
- AGE Research Group, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle Upon Tyne, UK.,NIHR Newcastle Biomedical Research Centre, Newcastle Upon Tyne Hospitals NHS Foundation Trust and Newcastle University, Newcastle Upon Tyne, UK
| | - Christopher Hurst
- AGE Research Group, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle Upon Tyne, UK.,NIHR Newcastle Biomedical Research Centre, Newcastle Upon Tyne Hospitals NHS Foundation Trust and Newcastle University, Newcastle Upon Tyne, UK
| | - Lorelle Dismore
- Northumbria Healthcare NHS Foundation Trust, Research and Development, North Tyneside General Hospital, North Shields, UK
| | - Terry Aspray
- AGE Research Group, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle Upon Tyne, UK.,NIHR Newcastle Biomedical Research Centre, Newcastle Upon Tyne Hospitals NHS Foundation Trust and Newcastle University, Newcastle Upon Tyne, UK.,Newcastle Upon Tyne Hospitals NHS Foundation Trust, Musculoskeletal Unit, Freeman Hospital, Newcastle Upon Tyne, UK
| | - Emma Stevenson
- Population Health Sciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle Upon Tyne, UK.,Human Nutrition Research Centre, Newcastle University, Newcastle Upon Tyne, UK
| | - Miles D Witham
- AGE Research Group, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle Upon Tyne, UK.,NIHR Newcastle Biomedical Research Centre, Newcastle Upon Tyne Hospitals NHS Foundation Trust and Newcastle University, Newcastle Upon Tyne, UK
| | - Avan A Sayer
- AGE Research Group, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle Upon Tyne, UK.,NIHR Newcastle Biomedical Research Centre, Newcastle Upon Tyne Hospitals NHS Foundation Trust and Newcastle University, Newcastle Upon Tyne, UK
| | - Sian Robinson
- AGE Research Group, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle Upon Tyne, UK.,NIHR Newcastle Biomedical Research Centre, Newcastle Upon Tyne Hospitals NHS Foundation Trust and Newcastle University, Newcastle Upon Tyne, UK
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Abstract
Researching the distinguishing factors of nutritional milk quality is key to sustainable production and addresses increasing media and scientific scrutiny regarding human health effects and ecological impacts of dairy products. Modern Western diets have high omega-6 relative to omega-3 fatty acid (FA) consumption. This ratio in milk can be manipulated by management practices; increasing forage in dairy diets raises omega-3 in milk. Whilst studies identify higher concentrations of nutritionally beneficial FAs in organic dairy, milk from 100% forage-fed cows in the UK has not been investigated. This study explores differences in FA composition between supermarket conventional and organic and Pasture for Life Association (PFLA) milk, collected in April, July and October, 2017. PFLA milk had higher concentrations of conjugated linoleic acid (+94%) and omega-3 (+92%) than conventional milk. Additionally, concentrations of palmitic acid (+11%), omega-6 (+69%) and the ratio of omega-6/omega-3 (+201%) were higher in conventional than PFLA milk. PFLA milk had higher concentrations of alpha-linolenic acid (+39%), conjugated linoleic acid (+30%) and omega-3 (+21%) and lower concentrations of omega-6 (−36%) and a lower ratio of omega-6/omega-3 (−44%) than organic milk. This supports previous studies and demonstrates the scope to improve milk FA profiles further for potential health benefits through pasture-based management.
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Szkolnicka K, Dmytrów I, Mituniewicz-Małek A. Buttermilk ice cream-New method for buttermilk utilization. Food Sci Nutr 2020; 8:1461-1470. [PMID: 32180955 PMCID: PMC7063380 DOI: 10.1002/fsn3.1429] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 01/03/2020] [Accepted: 01/05/2020] [Indexed: 11/11/2022] Open
Abstract
Buttermilk, the by‐product of butter production, due to good technological features and excellent nutritional and health‐promoting properties finds more and more applications in food industry. Considerable amount of polar lipids causes that buttermilk exhibits emulsifying and stabilizing effect and may be used to improve the product quality. The study aimed to design new kind of ice cream, in which all milk is substituted by buttermilk. Within the study, we compared physicochemical parameters, color, texture, and sensory properties of control milk ice cream (C), ice cream from sweet buttermilk (SB), and ice cream from cultured buttermilk (CB). Ice cream was tested on the production day, and some characteristics were tested also after 14 and 28 days of storage at −18 ± 1°C. The study showed that samples of ice cream from cultured buttermilk had the highest acidity and were the most resistant to melting. The samples did not differ in over‐run value. The use of buttermilk influenced the texture of ice cream and product from sweet buttermilk had the highest stickiness during the storage. The color analysis showed that the highest lightness parameter had ice cream from cultured buttermilk, while samples from sweet buttermilk had the most greenish‐yellow characteristics. All the obtained products had good sensory characteristics, only cultured buttermilk ice cream slightly deteriorated after 28 storage days. Good quality properties cause that buttermilk may be successfully used as substitution of milk in ice‐cream formula and may improve its quality by exhibiting of some emulsifying stabilizing effect.
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Affiliation(s)
- Katarzyna Szkolnicka
- Department of Toxicology, Dairy Technology and Food Storage Faculty of Food Sciences and Fisheries West Pomeranian University of Technology Szczecin Poland
| | - Izabela Dmytrów
- Department of Toxicology, Dairy Technology and Food Storage Faculty of Food Sciences and Fisheries West Pomeranian University of Technology Szczecin Poland
| | - Anna Mituniewicz-Małek
- Department of Toxicology, Dairy Technology and Food Storage Faculty of Food Sciences and Fisheries West Pomeranian University of Technology Szczecin Poland
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Abstract
Grape marc (GPM) is a viticulture by-product that is rich in secondary compounds, including condensed tannins (CT), and is used as a supplement in livestock feeding practices. The aim of this study was to determine whether feeding GPM to lactating dairy cows would alter the milk proteome through changes in nitrogen (N) partitioning. Ten lactating Holstein cows were fed a total mixed ration (TMR) top-dressed with either 1.5 kg dry matter (DM)/cow/day GPM (GPM group; n = 5) or 2.0 kg DM/cow/day of a 50:50 beet pulp: soy hulls mix (control group; n = 5). Characterization of N partitioning and calculation of N partitioning was completed through analysis of plasma urea-N, urine, feces, and milk urea-N. Milk samples were collected for general composition analysis, HPLC quantification of the high abundance milk proteins (including casein isoforms, α-lactalbumin, and β-lactoglobulin) and liquid chromatography tandem mass spectrometry (LC-MS/MS) analysis of the low abundance protein enriched milk fraction. No differences in DMI, N parameters, or calculated N partitioning were observed across treatments. Dietary treatment did not affect milk yield, milk protein or fat content or yield, or the concentrations of high abundance milk proteins quantified by HPLC analysis. Of the 127 milk proteins that were identified by LC-MS/MS analysis, 16 were affected by treatment, including plasma proteins and proteins associated with the blood-milk barrier, suggesting changes in mammary passage. Immunomodulatory proteins, including butyrophilin subfamily 1 member 1A and serum amyloid A protein, were higher in milk from GPM-fed cows. Heightened abundance of bioactive proteins in milk caused by dietary-induced shifts in mammary passage could be a feasible method to enhance the healthfulness of milk for both the milk-fed calf and human consumer. Additionally, the proteome shifts observed in this trial could provide a starting point for the identification of biomarkers suitable for use as indicators of mammary function.
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Identification of the complete coding cDNAs and expression analysis of B4GALT1, LALBA, ST3GAL5, ST6GAL1 in the colostrum and milk of the Garganica and Maltese goat breeds to reveal possible implications for oligosaccharide biosynthesis. BMC Vet Res 2019; 15:457. [PMID: 31852463 PMCID: PMC6921551 DOI: 10.1186/s12917-019-2206-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 12/04/2019] [Indexed: 12/11/2022] Open
Abstract
Background Milk sialylated oligosaccharides (SOS) play crucial roles in many biological processes. The most abundant free SOS in goat’s milk are 3’sialyllactose (3′-SL), 6’sialyllactose (6′-SL) and disialyllactose (DSL). The production of these molecules is determined genetically by the expression of glycosyltransferases and by the availability of nucleotide sugar substrates, but the precise mechanisms regulating the differential patterns of milk oligosaccharides are not known. We aimed to identify the complete cDNAs of candidate genes implicated in SOS biosynthesis (B4GALT1, LALBA, ST3GAL5, ST6GAL1) and to analyse their expression during lactation in the Garganica and Maltese goat breeds. Moreover, we analysed the colostrum and milk contents of 3′-SL, 6′-SL and disialyllactose (DSL) and the possible correlations between expressed genes and SOS. Results We identified the complete coding cDNAs of B4GALT1 (HQ700335.1), ST3GAL5 (KF055858.2), and ST6GAL1 (HQ709167.1), the single nucleotide polymorphism (SNPs) of these genes and 2 splicing variants of the ST6GAL1 cDNA. RT-qPCR analysis showed that LALBA and ST6GAL1 were the genes with the highest and lowest expression in both breeds, respectively. The interaction effects of the breeds and sampling times were associated with higher levels of B4GALT1 and ST3GAL5 gene expression in Garganica than in Maltese goats at kidding. B4GALT1, LALBA, and ST3GAL5 gene expression changed from kidding to 60 and 120 days in Maltese goats, while in Garganica goats, a difference was observed only for the LALBA gene. Breed and lactation effects were also found for SOS contents. Positive correlations of B4GALT1, LALBA, ST3GAL5, and ST6GAL1 with 3′-SL/6′SL and DSL were found. Conclusions The genetic effect on the oligosaccharide content of milk was previously highlighted in bovines, and this study is the first to investigate this effect in two goat breeds (Garganica and Maltese) during lactation. The genetic variability of candidate genes involved in SOS biosynthesis highlights their potential role in affecting gene expression and ultimately biological function. The investigation of gene regulatory regions as well as the examination of other sialyltransferase genes will be needed to identify the genetic pattern leading to a higher SOS content in the autochtonous Garganica breed and to protect it using a focused breeding strategy.
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Combination of LEDs and cognitive modeling to quantify sheep cheese whey in watercourses. Talanta 2019; 203:290-296. [DOI: 10.1016/j.talanta.2019.05.089] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 05/17/2019] [Accepted: 05/21/2019] [Indexed: 11/24/2022]
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Klaey-Tassone M, Patris B, Durand K, Schaal B. Attractive and appetitive odor factors in murine milk: Their fade-out time and differential cryo-preservation. Behav Processes 2019; 167:103913. [DOI: 10.1016/j.beproc.2019.103913] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 05/22/2019] [Accepted: 07/22/2019] [Indexed: 11/29/2022]
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47
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Sousa YR, Medeiros LB, Pintado MME, Queiroga RC. Goat milk oligosaccharides: Composition, analytical methods and bioactive and nutritional properties. Trends Food Sci Technol 2019. [DOI: 10.1016/j.tifs.2019.07.052] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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48
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Ledesma-Martínez E, Aguíñiga-Sánchez I, Weiss-Steider B, Rivera-Martínez AR, Santiago-Osorio E. Casein and Peptides Derived from Casein as Antileukaemic Agents. JOURNAL OF ONCOLOGY 2019; 2019:8150967. [PMID: 31582978 PMCID: PMC6754885 DOI: 10.1155/2019/8150967] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 06/20/2019] [Accepted: 08/04/2019] [Indexed: 12/20/2022]
Abstract
Milk is a heterogeneous lacteal secretion mixture of numerous components that exhibit a wide variety of chemical and functional activities. Casein, the main protein in milk, is composed of α-, β-, and κ-caseins, each of which is important for nutritional value and for promoting the release of cytokines, also are linked to the regulation of haematopoiesis and immune response and inhibit the proliferation and induce the differentiation of leukaemia cells. It has been shown that the digestive process of caseins leads to the release of bioactive peptides that are involved in the regulation of blood pressure and the inhibition or activation of the immune response by serving as agonists or antagonists of opioid receptors, thus controlling the expression of genes that exert epigenetic control. Later, they bind to opioid receptor, block nuclear factor κ-beta, increase the redox potential, and reduce oxidative stress and the pro-inflammatory agents that favour an antioxidant and anti-inflammatory environment. Therefore, the bioactive peptides of casein could be compounds with antileukaemia potential. This review provides a summary of current knowledge about caseins and casein peptides on the immune system as well as their roles in the natural defence against the development of leukaemia and as relevant epigenetic regulators that can help eradicate leukaemia.
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Affiliation(s)
- Edgar Ledesma-Martínez
- Haematopoiesis and Leukaemia Laboratory, Research Unit on Cell Differentiation and Cancer, FES Zaragoza, National Autonomous University of Mexico, 09230 Mexico City, Mexico
| | - Itzen Aguíñiga-Sánchez
- Haematopoiesis and Leukaemia Laboratory, Research Unit on Cell Differentiation and Cancer, FES Zaragoza, National Autonomous University of Mexico, 09230 Mexico City, Mexico
| | - Benny Weiss-Steider
- Haematopoiesis and Leukaemia Laboratory, Research Unit on Cell Differentiation and Cancer, FES Zaragoza, National Autonomous University of Mexico, 09230 Mexico City, Mexico
| | - Ana Rocío Rivera-Martínez
- Haematopoiesis and Leukaemia Laboratory, Research Unit on Cell Differentiation and Cancer, FES Zaragoza, National Autonomous University of Mexico, 09230 Mexico City, Mexico
| | - Edelmiro Santiago-Osorio
- Haematopoiesis and Leukaemia Laboratory, Research Unit on Cell Differentiation and Cancer, FES Zaragoza, National Autonomous University of Mexico, 09230 Mexico City, Mexico
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Alothman M, Hogan SA, Hennessy D, Dillon P, Kilcawley KN, O'Donovan M, Tobin J, Fenelon MA, O'Callaghan TF. The "Grass-Fed" Milk Story: Understanding the Impact of Pasture Feeding on the Composition and Quality of Bovine Milk. Foods 2019; 8:E350. [PMID: 31426489 PMCID: PMC6723057 DOI: 10.3390/foods8080350] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 08/09/2019] [Accepted: 08/12/2019] [Indexed: 02/07/2023] Open
Abstract
Milk is a highly nutritious food that contains an array of macro and micro components, scientifically proven to be beneficial to human health. While the composition of milk is influenced by a variety of factors, such as genetics, health, lactation stage etc., the animal's diet remains a key mechanism by which its nutrition and processing characteristics can be altered. Pasture feeding has been demonstrated to have a positive impact on the nutrient profile of milk, increasing the content of some beneficial nutrients such as Omega-3 polyunsaturated fatty acids, vaccenic acid, and conjugated linoleic acid (CLA), while reducing the levels of Omega-6 fatty acids and palmitic acid. These resultant alterations to the nutritional profile of "Grass-Fed" milk resonate with consumers that desire healthy, "natural", and sustainable dairy products. This review provides a comprehensive comparison of the impact that pasture and non-pasture feeding systems have on bovine milk composition from a nutritional and functional (processability) perspective, highlighting factors that will be of interest to dairy farmers, processors, and consumers.
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Affiliation(s)
- Mohammad Alothman
- Department of Food Chemistry & Technology, Teagasc Food Research Center, Moorepark, Fermoy, P61 C996 Cork, Ireland
| | - Sean A Hogan
- Department of Food Chemistry & Technology, Teagasc Food Research Center, Moorepark, Fermoy, P61 C996 Cork, Ireland
| | - Deirdre Hennessy
- Teagasc, Animal & Grassland Research and Innovation Centre, Moorepark, Fermoy, P61 C996 Cork, Ireland
| | - Pat Dillon
- Teagasc, Animal & Grassland Research and Innovation Centre, Moorepark, Fermoy, P61 C996 Cork, Ireland
| | - Kieran N Kilcawley
- Department of Food Quality & Sensory Science, Teagasc Food Research Center, Moorepark, Fermoy, P61 C996 Cork, Ireland
| | - Michael O'Donovan
- Teagasc, Animal & Grassland Research and Innovation Centre, Moorepark, Fermoy, P61 C996 Cork, Ireland
| | - John Tobin
- Department of Food Chemistry & Technology, Teagasc Food Research Center, Moorepark, Fermoy, P61 C996 Cork, Ireland
| | - Mark A Fenelon
- Department of Food Chemistry & Technology, Teagasc Food Research Center, Moorepark, Fermoy, P61 C996 Cork, Ireland
| | - Tom F O'Callaghan
- Department of Food Chemistry & Technology, Teagasc Food Research Center, Moorepark, Fermoy, P61 C996 Cork, Ireland.
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Pryshchepa O, Sagandykova GN, Pomastowski P, Railean-Plugaru V, Król A, Rogowska A, Rodzik A, Sprynskyy M, Buszewski B. A New Approach for Spontaneous Silver Ions Immobilization onto Casein. Int J Mol Sci 2019; 20:ijms20163864. [PMID: 31398861 PMCID: PMC6720684 DOI: 10.3390/ijms20163864] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 08/02/2019] [Accepted: 08/05/2019] [Indexed: 12/03/2022] Open
Abstract
The work presents the kinetic and isotherm studies of silver binding on casein, which was carried out using batch sorption technique. Moreover, the influence of light irradiation on the process was shown. In order to investigate the mechanism of metal ions sorption by casein the zero, pseudo-first order kinetics and Weber-Morris intra-particle diffusion as well as Langmuir and Freundlich isotherm models were used. Furthermore, to specify more precisely, the possible binding mechanism, the spectroscopic (FT-IR—Fourier Transform Infrared Spectroscopy, Raman), spectrometric (MALDI-TOF MS—Matrix-Assisted Laser Desorption/Ionization Time Of Flight Mass Spectrometry), microscopic (SEM—Scanning Electron Microscope, TEM/EDX—Transmission Electron Microscopy/Energy Dispersive X-ray detector) and thermal (TGA—Thermogravimetric Analysis, DTG—Derivative Thermogravimetry) analysis were performed. Kinetic study indicates that silver binding onto casein is a heterogeneous process with two main stages: initial rapid stage related to surface adsorption onto casein with immediate creation of silver nanoparticles and slower second stage of intraglobular diffusion with silver binding in chelated form (metalloproteins) or ion-exchange form. Spectroscopic techniques confirmed the binding process and MALDI-TOF MS analysis show the dominant contribution of the α-casein in the process. Moreover, the treatment of silver-casein complex by artificial physiological fluids was performed.
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Affiliation(s)
- Oleksandra Pryshchepa
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland
| | - Gulyaim N Sagandykova
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland
- Interdisciplinary Center for Modern Technologies, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland
| | - Paweł Pomastowski
- Interdisciplinary Center for Modern Technologies, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland.
| | - Viorica Railean-Plugaru
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland
- Interdisciplinary Center for Modern Technologies, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland
| | - Anna Król
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland
- Interdisciplinary Center for Modern Technologies, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland
| | - Agnieszka Rogowska
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland
- Interdisciplinary Center for Modern Technologies, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland
| | - Agnieszka Rodzik
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland
- Interdisciplinary Center for Modern Technologies, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland
| | - Myroslav Sprynskyy
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland
| | - Bogusław Buszewski
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland
- Interdisciplinary Center for Modern Technologies, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland
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