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Rathor S, Shukla M, Deepak D. Isolation of a novel pentasaccharide Ebaliose from immunostimulant fraction of buffalo milk oligosaccharide. Nat Prod Res 2023:1-10. [PMID: 38018765 DOI: 10.1080/14786419.2023.2284869] [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: 06/24/2023] [Accepted: 11/12/2023] [Indexed: 11/30/2023]
Abstract
Buffalo milk processed by method of Kobata and Ginsburg for isolation of its oligosaccharide contents showed significant stimulation of anti-body, delayed type hypersensitivity response to sheep red blood cells in BALB/c mice. This oligosaccharide mixture also stimulated non-specific immune response in terms of MMI. In continuation to our previous studies of oligosaccharide contents of buffalo milk another novel pentasaccharide Ebaliose was isolated from immunostimulant oligosaccharide fraction of buffalo milk. Ebaliose was procured in its purest form, by combining the different chromatographic techniques like Gel filtration, Silica Gel column chromatography, and HPLC. The structure of novel oligosaccharide was determined by 1H,13C, HSQC, TOCSY, COSY, HMBC, ESI-MS, chemical transformation, and chemical degradation. The stereoscopic structure of this novel pentasaccharide was established as under.
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Affiliation(s)
- Shraddha Rathor
- Department of Chemistry, University of Lucknow, Lucknow, India
| | - Manisha Shukla
- Department of Chemistry, University of Lucknow, Lucknow, India
| | - Desh Deepak
- Department of Chemistry, University of Lucknow, Lucknow, India
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Hu M, Miao M, Li K, Luan Q, Sun G, Zhang T. Human milk oligosaccharide lacto-N-tetraose: Physiological functions and synthesis methods. Carbohydr Polym 2023; 316:121067. [PMID: 37321746 DOI: 10.1016/j.carbpol.2023.121067] [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: 12/30/2022] [Revised: 05/23/2023] [Accepted: 05/24/2023] [Indexed: 06/17/2023]
Abstract
Human milk oligosaccharides (HMOs) have attracted considerable attention due to their unique role in boosting infant health. Among the HMOs, lacto-N-tetraose (LNT) is a significant constituent associated with various health benefits, such as prebiotic effects, antiadhesive antimicrobials, antiviral protection, and immune modulators. LNT has received a "Generally Recognized as Safe" status by the American Food and Drug Administration and was approved as a food ingredient for infant formula. However, the limited availability of LNT poses a major challenge for its application in food and medicine. In this review, we first explored the physiological functions of LNT. Next, we describe several synthesis methods for production of LNT, including chemical, enzymatic, and cell factory approaches, and summarize the pivotal research results. Finally, challenges and opportunities for the large-scale synthesis of LNT were discussed.
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Affiliation(s)
- Miaomiao Hu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Ming Miao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Kewen Li
- Baolingbao Biology Co., Ltd., Yucheng, Shandong 251200, China
| | - Qingmin Luan
- Baolingbao Biology Co., Ltd., Yucheng, Shandong 251200, China
| | - Guilian Sun
- Baolingbao Biology Co., Ltd., Yucheng, Shandong 251200, China
| | - Tao Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu 214122, China.
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Durham SD, Wei Z, Lemay DG, Lange MC, Barile D. Creation of a milk oligosaccharide database, MilkOligoDB, reveals common structural motifs and extensive diversity across mammals. Sci Rep 2023; 13:10345. [PMID: 37365203 DOI: 10.1038/s41598-023-36866-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 06/13/2023] [Indexed: 06/28/2023] Open
Abstract
The carbohydrate fraction of most mammalian milks contains a variety of oligosaccharides that encompass a range of structures and monosaccharide compositions. Human milk oligosaccharides have received considerable attention due to their biological roles in neonatal gut microbiota, immunomodulation, and brain development. However, a major challenge in understanding the biology of milk oligosaccharides across other mammals is that reports span more than 5 decades of publications with varying data reporting methods. In the present study, publications on milk oligosaccharide profiles were identified and harmonized into a standardized format to create a comprehensive, machine-readable database of milk oligosaccharides across mammalian species. The resulting database, MilkOligoDB, includes 3193 entries for 783 unique oligosaccharide structures from the milk of 77 different species harvested from 113 publications. Cross-species and cross-publication comparisons of milk oligosaccharide profiles reveal common structural motifs within mammalian orders. Of the species studied, only chimpanzees, bonobos, and Asian elephants share the specific combination of fucosylation, sialylation, and core structures that are characteristic of human milk oligosaccharides. However, agriculturally important species do produce diverse oligosaccharides that may be valuable for human supplementation. Overall, MilkOligoDB facilitates cross-species and cross-publication comparisons of milk oligosaccharide profiles and the generation of new data-driven hypotheses for future research.
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Affiliation(s)
- Sierra D Durham
- Department of Food Science and Technology, University of California, Davis, One Shields Ave., Davis, CA, 95616, USA
| | - Zhe Wei
- Department of Food Science and Technology, University of California, Davis, One Shields Ave., Davis, CA, 95616, USA
| | - Danielle G Lemay
- Agricultural Research Service, U.S. Department of Agriculture, Western Human Nutrition Research Center, 430 West Health Sciences Dr., Davis, CA, 95616, USA
| | - Matthew C Lange
- International Center for Food Ontology Operability Data and Semantics, 216 F Street Ste. 139, Davis, CA, 95616, USA
| | - Daniela Barile
- Department of Food Science and Technology, University of California, Davis, One Shields Ave., Davis, CA, 95616, USA.
- Foods for Health Institute, University of California, Davis, One Shields Ave., Davis, CA, 95616, USA.
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Abstract
The main objective of this review is to summarize the compositional characteristics and the health and functional properties of Mediterranean buffalo milk and whey derived from mozzarella cheese production. Several studies have investigated the composition of buffalo milk and in particular its fat, protein, and carbohydrates contents. These characteristics may change depending on the breed, feeding regime, and rearing system of the animals involved in the study, and also with the seasons. In particular, buffalo milk showed a higher nutritional value and higher levels of proteins, vitamins, and minerals when compared to milks produced by other animal species. Additionally, buffalo milk contains beneficial compounds such as gangliosides that can provide antioxidant protection and neuronal protection, and can improve bone, heart, and gastrointestinal health in humans.
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Liu M, Cai M, Ding P. Oligosaccharides from Traditional Chinese Herbal Medicines: A Review of Chemical Diversity and Biological Activities. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2021; 49:577-608. [PMID: 33730992 DOI: 10.1142/s0192415x21500269] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/08/2022]
Abstract
Most of traditional Chinese herbal medicine (TCHM) substances come from medicinal plants, among which oligosaccharides have gradually attracted widespread attention at home and abroad due to their important biological activities and great medicinal potential. Numerous in vitro and in vivo experiments exhibited that oligosaccharides possess various activities, such as antitumor, anti-oxidation, modulate the gut microflora, anti-inflammatory, anti-infection, and immune-regulatory activities. Generally, biological activities are closely related to chemical structures, including molecular weight, monosaccharide composition, glycosidic bond connection, etc. The structural analysis of oligosaccharides is an important basis for studying their structure-activity relationship, but the structural diversity and complexity of carbohydrate compounds limit the study of oligosaccharides activities. Understanding the structures and biological functions of oligosaccharides is important for the development of new bioactive substances with natural oligosaccharides. This review provides a systematic introduction of the current knowledge of the chemical structures and biological activities of oligosaccharides. Most importantly, the reported chemical characteristics and biological activities of the famous TCHM oligosaccharides were briefly summarized, including Morinda officinalis, Rehmannia glutinosa, Arctium lappa, Polygala tenuifolia, Panax ginseng, Lycium barbarum and Astragalus membranaceus. TCHM oligosaccharides play an important role in nutrition, health care, disease diagnosis and prevention as well as have broad application prospects in the field of medicine.
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Affiliation(s)
- Mengyun Liu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, 232 Waihuan East Road, Panyu District, Guangzhou 510006, P. R. China
| | - Miaomiao Cai
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, 232 Waihuan East Road, Panyu District, Guangzhou 510006, P. R. China
| | - Ping Ding
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, 232 Waihuan East Road, Panyu District, Guangzhou 510006, P. R. China
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Summer A, Formaggioni P, Franceschi P, Di Frangia F, Righi F, Malacarne M. Cheese as Functional Food: The Example of Parmigiano Reggiano and Grana Padano. Food Technol Biotechnol 2017; 55:277-289. [PMID: 29089844 DOI: 10.17113/ftb.55.03.17.5233] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Italian hard cooked types of cheese, like Parmigiano Reggiano and Grana Padano, are characterised by positive nutritional qualities. In fact, they contain substances that have particular biological activities, and therefore they can be fully considered, according to the definition given by the European Unit, as 'functional' foods. This short review concisely describes these components and the beneficial effects related to their activities. The description of the biologically active components has been organised in the following paragraphs: protein and peptides, fat and lipids, carbohydrates and prebiotics, probiotic bacteria, vitamins, mineral salts, and components of dairy products active in disease prevention. In particular, several known bioactive peptides were found in Parmigiano Reggiano cheese samples: for example, phosphopeptides, which are known for their mineral-binding capacity and vehiculation activity, peptides with immunomodulatory activity, and angiotensin-converting enzyme-inhibitory peptides with anti-hypertensive effects. Among lipids, the role of conjugated linoleic acid and other fatty acids present in these cheese types was taken into consideration. The presence of oligosaccharides with prebiotic properties and probiotic bacteria was also described. Finally, particular emphasis was given to highly available calcium and its impact on bone health.
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Affiliation(s)
- Andrea Summer
- Department of Veterinary Science, University of Parma, Strada del Taglio 10, IT-43126 Parma, Italy.,MILC Center, University of Parma, Parco Area delle Scienze 59/A, IT-43124 Parma, Italy
| | - Paolo Formaggioni
- Department of Veterinary Science, University of Parma, Strada del Taglio 10, IT-43126 Parma, Italy
| | - Piero Franceschi
- Department of Veterinary Science, University of Parma, Strada del Taglio 10, IT-43126 Parma, Italy
| | - Federica Di Frangia
- Department of Veterinary Science, University of Parma, Strada del Taglio 10, IT-43126 Parma, Italy
| | - Federico Righi
- Department of Veterinary Science, University of Parma, Strada del Taglio 10, IT-43126 Parma, Italy
| | - Massimo Malacarne
- Department of Veterinary Science, University of Parma, Strada del Taglio 10, IT-43126 Parma, Italy.,MILC Center, University of Parma, Parco Area delle Scienze 59/A, IT-43124 Parma, Italy
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Lee H, Cuthbertson DJ, Otter DE, Barile D. Rapid Screening of Bovine Milk Oligosaccharides in a Whey Permeate Product and Domestic Animal Milks by Accurate Mass Database and Tandem Mass Spectral Library. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:6364-74. [PMID: 27428379 PMCID: PMC5832056 DOI: 10.1021/acs.jafc.6b02039] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
A bovine milk oligosaccharide (BMO) library, prepared from cow colostrum, with 34 structures was generated and used to rapidly screen oligosaccharides in domestic animal milks and a whey permeate powder. The novel library was entered into a custom Personal Compound Database and Library (PCDL) and included accurate mass, retention time, and tandem mass spectra. Oligosaccharides in minute-sized samples were separated using nanoliquid chromatography (nanoLC) coupled to a high resolution and sensitive quadrupole-Time of Flight (Q-ToF) MS system. Using the PCDL, 18 oligosaccharides were found in a BMO-enriched product obtained from whey permeate processing. The usefulness of the analytical system and BMO library was further validated using milks from domestic sheep and buffaloes. Through BMO PCDL searching, 15 and 13 oligosaccharides in the BMO library were assigned in sheep and buffalo milks, respectively, thus demonstrating significant overlap between oligosaccharides in bovine (cow and buffalo) and ovine (sheep) milks. This method was shown to be an efficient, reliable, and rapid tool to identify oligosaccharide structures using automated spectral matching.
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Affiliation(s)
- Hyeyoung Lee
- Department of Food Science and Technology, University of California-Davis, Davis, California 95616, United States
| | | | - Don E. Otter
- School of Chemical Sciences, University of Auckland, Auckland 1142, New Zealand
| | - Daniela Barile
- Department of Food Science and Technology, University of California-Davis, Davis, California 95616, United States
- Foods for Health Institute, University of California-Davis, Davis, California 95616, United States
- Corresponding Author: Tel: +1-530-752-0976. Fax: +1-530-752-4759.
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Singh M, Kumar A, Srivastava G, Deepak D, Singh M. Isolation, structure elucidation and DFT study on two novel oligosaccharides from yak milk. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.03.065] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Singh AK, Ranjan AK, Srivastava G, Deepak D. Structure elucidation of two novel yak milk oligosaccharides and their DFT studies. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2015.11.061] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Colostrum hexasaccharide, a novel Staphylococcus aureus quorum-sensing inhibitor. Antimicrob Agents Chemother 2015; 59:2169-78. [PMID: 25645850 DOI: 10.1128/aac.03722-14] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The discovery of quorum-sensing (QS) systems regulating antibiotic resistance and virulence factors (VFs) has afforded a novel opportunity to prevent bacterial pathogenicity. Dietary molecules have been demonstrated to attenuate QS circuits of bacteria. But, to our knowledge, no study exploring the potential of colostrum hexasaccharide (CHS) in regulating QS systems has been published. In this study, we analyzed CHS for inhibiting QS signaling in Staphylococcus aureus. We isolated and characterized CHS from mare colostrum by high-performance thin-layer chromatography (HPTLC), reverse-phase high-performance liquid chromatography evaporative light-scattering detection (RP-HPLC-ELSD), (1)H and (13)C nuclear magnetic resonance (NMR), and electrospray ionization mass spectrometry (ESI-MS). Antibiofilm activity of CHS against S. aureus and its possible interference with bacterial QS systems were determined. The inhibition and eradication potentials of the biofilms were studied by microscopic analyses and quantified by 96-well-microtiter-plate assays. Also, the ability of CHS to interfere in bacterial QS by degrading acyl-homoserine lactones (AHLs), one of the most studied signal molecules for Gram-negative bacteria, was evaluated. The results revealed that CHS exhibited promising inhibitory activities against QS-regulated secretion of VFs, including spreading ability, hemolysis, protease, and lipase activities, when applied at a rate of 5 mg/ml. The results of biofilm experiments indicated that CHS is a strong inhibitor of biofilm formation and also has the ability to eradicate it. The potential of CHS to interfere with bacterial QS systems was also examined by degradation of AHLs. Furthermore, it was documented that CHS decreased antibiotic resistance in S. aureus. The results thus give a lead that mare colostrum can be a promising source for isolating a next-generation antibacterial.
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Zhang X, Ding Y, Qu M, Lu D. Beneficial effects of ruminal oligosaccharide administration on immunologic system function in sheep. CANADIAN JOURNAL OF ANIMAL SCIENCE 2014. [DOI: 10.4141/cjas-2014-068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Zhang, X., Ding, Y., Qu, M. and Lu, D. 2014. Beneficial effects of ruminal oligosaccharide administration on immunologic system function in sheep. Can. J. Anim. Sci. 94: 679–684. Oligosaccharides (Os) are considered prebiotics with potential beneficial immunomodulating effects, although little is known about their effects in ruminants. Therefore, the objective of this study was to investigate the effects of Os administration on sheep immunologic system function. Sheep were randomly allotted into three different treatment groups (three sheep each): (1) control, infused with equal volume of vehicle distilled water; (2) medium level, infused with 5.4 g Os d−1 (0.6% of basal diet); (3) higher level group, infused with 10.8 g Os d−1 (1.2% of basal diet). The study comprised three experimental stages, each with a 14-d adaptation period and a 21-d experimental period; Os were administered during each experimental period via cannulae placed in the rumen, duodenum or ileum, respectively. At 7, 14 and 21 d of infusion, the proportion of circulating CD4+ and CD8+ T-lymphocytes was assessed via flow cytometry, and serum IgA/IgG concentrations were analyzed using an ELISA test. The Os infusion increased (P<0.05) the proportion of CD4+ T-lymphocytes hence raising the CD4+ /CD8+ ratio, as well the serum concentrations of IgA and IgG. Interestingly, ruminal infusion yielded the best results, while ileal administration resulted in negative measurements. These findings may be useful to elucidate the cellular and molecular mechanisms responsible for enhanced immune functions in sheep receiving dietary supplementation with indigestible oligosaccharides.
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Affiliation(s)
- Xuefeng Zhang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, China
| | - Yu Ding
- Laboratory Animal Center, Jilin University, Changchun 130062, China
| | - Mingren Qu
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang 330045
| | - Dexun Lu
- Insitute of Animal Nutrition, Inner Mongolian Academy of Agriculture and Animal Husbandry, Huhhot 010031, China
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Isolation of Mare's Milk Oligosaccharide Fraction of Colostrum, Transitional, and Mature Phases Promotes In Vitro Oxidative Burst in Murine Macrophages. J Equine Vet Sci 2014. [DOI: 10.1016/j.jevs.2014.06.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Wan D, Jiao L, Yang H, Liu S. Structural characterization and immunological activities of the water-soluble oligosaccharides isolated from the Panax ginseng roots. PLANTA 2012; 235:1289-1297. [PMID: 22183124 DOI: 10.1007/s00425-011-1574-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2011] [Accepted: 12/05/2011] [Indexed: 05/31/2023]
Abstract
Water-soluble ginseng oligosaccharides (designated as WGOS) with a degree of polymerization ranging from 2 to 10 were obtained from warm-water extract of Panax ginseng roots, and fractionated into five purified fractions (i.e., WGOS-0, WGOS-1, WGOS-2, WGOS-3, and WGOS-4) by gel-filtration chromatography. In order to ascertain the monosaccharide residues in the WGOS, a technique that combines acid hydrolysis and high-performance liquid chromatography was employed. It was found that only glucose residues were present in the WGOS. Fourier transform infrared spectroscopy and electrospray ionization tandem mass spectrometry provided the sequence, linkage, and configuration information. It is noteworthy that α-Glcp-(1 → 6)-α-Glcp, α-Glcp-(1 → 6)-α-Glcp-(1 → 4)-α-Glcp, α-Glcp-(1 → 6)-α-Glcp-(1 → 6)-α-Glcp-(1 → 4)-α-Glcp, and other six malto-oligosaccharides (i.e., maltopentaose, maltohexaose, maltoheptaose, maltooctaose, maltononaose, and maltodecaose) were detected in ginseng. Preliminary immunological tests in vitro indicated that WGOS were potent B and T-cell stimulators and WGOS-1 has the highest immunostimulating effect on lymphocyte proliferation among those purified fractions. It is hoped that the WGOS will be developed into functional food or medicine.
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Affiliation(s)
- Debin Wan
- Changchun Center of Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, 130022 Changchun, China
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Aiello D, De Luca D, Gionfriddo E, Naccarato A, Napoli A, Romano E, Russo A, Sindona G, Tagarelli A. Review: multistage mass spectrometry in quality, safety and origin of foods. EUROPEAN JOURNAL OF MASS SPECTROMETRY (CHICHESTER, ENGLAND) 2011; 17:1-31. [PMID: 21625027 DOI: 10.1255/ejms.1114] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Quality and safety control and the validation of origin are hot issues in the production of food and its distribution, and are of primary concern to food and agriculture organization. Modern mass spectrometry (MS) provides unique, reliable and affordable methodologies to approach with a high degree of scientificity any problem which may be posed in this field. In this review the contribution of mass spectrometry to food analysis is presented aiming at providing clues on the fundamental role of the basic principles of gas-phase ion chemistry in applied research fields. Applications in proteomics, allergonomics, glycomics, metabolomics, lipidomics, food safety and traceability have been surveyed. The high level of specificity and sensitivity of the MS approach allows the characterization of food components and contaminants present at ultra-trace levels, providing a distinctive and safe validation of the products.
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Affiliation(s)
- Donatella Aiello
- Dipartimento di Chimica, Università della Calabria, Arcavacata di Rende, Italy
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Osthoff G, Hugo A, de Wit M. Milk composition of free-ranging sable antelope (Hippotragus niger). Mamm Biol 2007. [DOI: 10.1016/j.mambio.2006.06.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Osthoff G, Hugo A, de Wit M. Milk composition of free-ranging springbok (Antidorcas marsupialis). Comp Biochem Physiol B Biochem Mol Biol 2006; 146:421-6. [PMID: 17257875 DOI: 10.1016/j.cbpb.2006.11.030] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2006] [Revised: 11/28/2006] [Accepted: 11/28/2006] [Indexed: 11/18/2022]
Abstract
Milk was obtained from three free-ranging springbok ewes of the Karoo, South Africa. The nutrient content was 74.4+/-13.8 g protein; 145.2+/-4.5 g fat; and 42.3+/-16.4 g lactose/kg milk. Small amounts of glucose, galactose and fucose were noted, and 0.3+/-0.4 g oligosaccharides. The protein fraction respectively consisted of 60.0+/-13.7 g caseins/kg milk and of 14.1+/-4.5 g whey proteins/kg milk. The lactation stage of the springbok ewes was not known, but variation in milk composition among individuals indicates that they were at different stages. Electrophoresis and identification of protein bands showed a similar migrating sequence of proteins as seen in caprine milk. The lipid fraction contains 604.0+/-26.5 g saturated fatty acids/kg milk fat, and 278.2+/-20.5 and 45.2+/-3.6 g/kg mono and poly-unsaturated fatty acids respectively. Compared to domesticated dairy species, a low content of short chain length fatty acids was observed, while stearic acid was at higher, and arachidonic acid at lower levels. Substantial levels of uneven carbon chain fatty acids were also observed. Springbok milk is much more concentrated than the milks of most ruminants, with higher fat and oligosaccharide contents.
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Affiliation(s)
- G Osthoff
- Department of Microbial, Biochemical and Food Biotechnology, University of the Free State, Bloemfontein, South Africa.
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Osthoff G, Hugo A, de Wit M. The composition of cheetah (Acinonyx jubatus) milk. Comp Biochem Physiol B Biochem Mol Biol 2006; 145:265-9. [PMID: 17064942 DOI: 10.1016/j.cbpb.2006.05.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2005] [Revised: 05/04/2006] [Accepted: 05/14/2006] [Indexed: 11/29/2022]
Abstract
Milk was obtained from two captive bred cheetahs. The nutrient content was 99.6 g protein; 64.8 g fat; and 40.21 g lactose per kg milk. Small amounts of oligosaccharides, glucose, galactose and fucose were noted. The protein fraction respectively consisted of 34.2 g caseins per kg milk and of 65.3 g whey proteins per kg milk. Very little variation in milk composition among the individual cheetahs was noted. Electrophoresis and identification of protein bands showed a similar migrating sequence of proteins as seen in lion's and cat's milk, with small differences in the beta-caseins. The lipid fraction contains 290.4 g saturated and 337.3 g mono-unsaturated fatty acids per kg milk fat respectively. The high content of 279.5 g kg(-1) milk fat of polyunsaturated fatty acids is due to a high content in alpha-linolenic acid. No short chain fatty acids, but substantial levels of uneven carbon chain fatty acids were observed.
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Affiliation(s)
- G Osthoff
- Department of Microbial, Biochemical and Food Biotechnology, University of the Free State, PO Box 339, Bloemfontein 9300, South Africa.
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Careri M, Bianchi F, Corradini C. Recent advances in the application of mass spectrometry in food-related analysis. J Chromatogr A 2002; 970:3-64. [PMID: 12350102 DOI: 10.1016/s0021-9673(02)00903-2] [Citation(s) in RCA: 149] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A review is presented on recent applications of mass spectrometry (MS)-based techniques for the analysis of compounds of food concern. Substances discussed are naturally occurring compounds in food products such as lipids, oligosaccharides, proteins, vitamins, flavonoids and related substances, phenolic compounds and aroma compounds. Among xenobiotics, applications of MS techniques for the analysis of pesticides, drug residues, toxins, amines and migrants from packaging are overviewed. Advances in the analysis of trace metals of nutritional and toxicological interest by MS with inductively coupled plasma (ICP) source are presented. The main features of mass spectrometry combined with separation instruments are discussed in food-related analysis. Examples of mass spectrometry and tandem MS (MS-MS) are provided. The development and application of matrix-assisted laser desorption ionization (MALDI) and electrospray (ESI) to the analysis of peptides and proteins in food is discussed. This survey will attempt to cover the state-of-the-art up from 1999 to 2001.
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Affiliation(s)
- M Careri
- Dipartimento di Chimica Generale ed Inorganica, Chimica Analitica, Chimica Fisica, Università degli Studi di Parma, Italy.
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Abstract
An efficient synthesis of buffalo milk pentasaccharide derivative via a 3+2 strategy is described. The use of a trisaccharide isopropyl thioglycoside as a latent glycosyl donor and the application of two well-defined regioselective glycosylations significantly simplified the target preparation.
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Affiliation(s)
- Guofeng Gu
- Research Center for Eco-Environmental Sciences, Academia Sinica, Beijing, PR China
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