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Velazquez-Dominguez A, Hennetier M, Abdallah M, Hiolle M, Violleau F, Delaplace G, De Sa Peixoto P. Influence of enzymatic cross-linking on the apparent viscosity and molecular characteristics of casein micelles at neutral and acidic pH. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2023.108552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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Assessment of structures in phosphocaseinate dispersions by A4F, NMR and SAXS: The impact of demineralization and heat treatment on viscosity. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.108366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Zappi A, Marassi V, Kassouf N, Giordani S, Pasqualucci G, Garbini D, Roda B, Zattoni A, Reschiglian P, Melucci D. A Green Analytical Method Combined with Chemometrics for Traceability of Tomato Sauce Based on Colloidal and Volatile Fingerprinting. Molecules 2022; 27:molecules27175507. [PMID: 36080273 PMCID: PMC9457838 DOI: 10.3390/molecules27175507] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 08/12/2022] [Accepted: 08/24/2022] [Indexed: 11/16/2022] Open
Abstract
Tomato sauce is a world famous food product. Despite standards regulating the production of tomato derivatives, the market suffers frpm fraud such as product adulteration, origin mislabelling and counterfeiting. Methods suitable to discriminate the geographical origin of food samples and identify counterfeits are required. Chemometric approaches offer valuable information: data on tomato sauce is usually obtained through chromatography (HPLC and GC) coupled to mass spectrometry, which requires chemical pretreatment and the use of organic solvents. In this paper, a faster, cheaper, and greener analytical procedure has been developed for the analysis of volatile organic compounds (VOCs) and the colloidal fraction via multivariate statistical analysis. Tomato sauce VOCs were analysed by GC coupled to flame ionisation (GC-FID) and to ion mobility spectrometry (GC-IMS). Instead of using HPLC, the colloidal fraction was analysed by asymmetric flow field-fractionation (AF4), which was applied to this kind of sample for the first time. The GC and AF4 data showed promising perspectives in food-quality control: the AF4 method yielded comparable or better results than GC-IMS and offered complementary information. The ability to work in saline conditions with easy pretreatment and no chemical waste is a significant advantage compared to environmentally heavy techniques. The method presented here should therefore be taken into consideration when designing chemometric approaches which encompass a large number of samples.
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Affiliation(s)
- Alessandro Zappi
- Department of Chemistry “Giacomo Ciamician”, University of Bologna, 40126 Bologna, Italy
| | - Valentina Marassi
- Department of Chemistry “Giacomo Ciamician”, University of Bologna, 40126 Bologna, Italy
- byFlow srl, 40129 Bologna, Italy
- Correspondence:
| | - Nicholas Kassouf
- Department of Chemistry “Giacomo Ciamician”, University of Bologna, 40126 Bologna, Italy
| | - Stefano Giordani
- Department of Chemistry “Giacomo Ciamician”, University of Bologna, 40126 Bologna, Italy
| | - Gaia Pasqualucci
- Department of Chemistry “Giacomo Ciamician”, University of Bologna, 40126 Bologna, Italy
| | - Davide Garbini
- COOP ITALIA Soc. Cooperativa, Casalecchio di Reno, 40033 Bologna, Italy
| | - Barbara Roda
- Department of Chemistry “Giacomo Ciamician”, University of Bologna, 40126 Bologna, Italy
- byFlow srl, 40129 Bologna, Italy
| | - Andrea Zattoni
- Department of Chemistry “Giacomo Ciamician”, University of Bologna, 40126 Bologna, Italy
- byFlow srl, 40129 Bologna, Italy
| | - Pierluigi Reschiglian
- Department of Chemistry “Giacomo Ciamician”, University of Bologna, 40126 Bologna, Italy
- byFlow srl, 40129 Bologna, Italy
| | - Dora Melucci
- Department of Chemistry “Giacomo Ciamician”, University of Bologna, 40126 Bologna, Italy
- CIRI Agrifood, University of Bologna, 47521 Cesena, Italy
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Ren J, Liao M, Ma L, Chen F, Liao X, Hu X, Miao S, Fitzpatrick J, Ji J. Effect of spray freeze drying on the structural modification and rehydration characteristics of micellar casein powders. INNOV FOOD SCI EMERG 2022. [DOI: 10.1016/j.ifset.2022.103093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Leeman M, Castro Nilsson A, Nilsson L. Analysis of Proteins, Biologics, and Nanoparticles in Biological Fluids Using Asymmetrical Flow Field-Flow Fractionation. LCGC EUROPE 2022. [DOI: 10.56530/lcgc.eu.hv2689b6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
With the increasing interest in biopharmaceuticals such as proteins, antibodies, and nucleic acids, there is a corresponding increase in the need for characterizing such components. Much effort is spent on characterization in the early drug development phases as well as during formulation development and quality control. One parameter that is commonly investigated is the size distribution of the macromolecular components to deduce if there is aggregation or degradation occurring, if conformational changes occur, or if there are interactions with excipients. While the properties of the protein drug in the buffer system or in the pharmaceutical formulation are important, possibly even more interesting are the properties of the drug once it enters the body. Size characterization of macromolecules in biological fluids has traditionally been an area hampered by the complexity of the matrix. The large amount of indigenous components can interfere with commonly applied analytical techniques for size characterization. However, the separation technique asymmetrical flow field-flow fractionation (AF4) has recently shown increasing applicability for the characterization of components in blood plasma and serum. This article reviews some aspects of applying AF4 to plasma, serum, milk, and cerebrospinal fluid in the field of analysis and characterization of proteins, biologics, and nanoparticles in biological fluids.
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