1
|
Li S, Dixit Y, Reis MM, Singh H, Ye A. Movements of moisture and acid in gastric milk clots during gastric digestion: Spatiotemporal mapping using hyperspectral imaging. Food Chem 2024; 431:137094. [PMID: 37586231 DOI: 10.1016/j.foodchem.2023.137094] [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: 05/22/2023] [Revised: 07/25/2023] [Accepted: 08/02/2023] [Indexed: 08/18/2023]
Abstract
Ruminant milk is known to coagulate into structured clots during gastric digestion. This study investigated the movements of moisture and acid in skim milk clots formed during dynamic gastric digestion and the effects of milk type (regular or calcium-rich) and the presence/absence of pepsin. We conducted hyperspectral imaging analysis and successfully modelled the moisture contents based on the spectral information using partial least squares regression. We generated prediction maps of the spatiotemporal distribution of moisture within the samples at different stages of gastric digestion. Simultaneously to acid uptake, the moisture in the milk clots tended to decrease over the digestion time; this was significantly promoted by pepsin. Moisture mapping by hyperspectral imaging demonstrated that the high and low moisture zones were centralized within the clot and at the surface respectively. A structural compaction process promoted by pepsinolysis and acidification probably contributed to the water expulsion from the clots during digestion.
Collapse
Affiliation(s)
- Siqi Li
- Riddet Institute, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
| | - Yash Dixit
- AgResearch Ltd, Te Ohu Rangahau Kai, Private Bag 11 008, Palmerston North, New Zealand
| | - Marlon M Reis
- AgResearch Ltd, Te Ohu Rangahau Kai, Private Bag 11 008, Palmerston North, New Zealand.
| | - Harjinder Singh
- Riddet Institute, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
| | - Aiqian Ye
- Riddet Institute, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand.
| |
Collapse
|
2
|
El Moussaoui Y, Terrisse H, Quillard S, Ropers MH, Humbert B. The True Nature of Tricalcium Phosphate Used as Food Additive (E341(iii)). NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1823. [PMID: 37368253 DOI: 10.3390/nano13121823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 06/01/2023] [Accepted: 06/04/2023] [Indexed: 06/28/2023]
Abstract
Tricalcium phosphate (TCP) is a food additive, labeled E341(iii), used in powdered food preparation, such as baby formula. In the United States, calcium phosphate nano-objects were identified in baby formula extractions. Our goal is to determine whether the TCP food additive, as is used in Europe, can be classified as a nanomaterial. The physicochemical properties of TCP were characterized. Three different samples (from a chemical company and two manufacturers) were thoroughly characterized according to the recommendations of the European Food Safety Authority. A commercial TCP food additive was identified as actually being hydroxyapatite (HA). It presents itself in the form of particles of different shapes (either needle-like, rod, or pseudo-spherical), which were demonstrated in this paper to be of a nanometric dimension: E341(iii) is thus a nanomaterial. In water, HA particles sediment rapidly as agglomerates or aggregates over a pH of 6 and are progressively dissolved in acidic media (pH < 5) until the complete dissolution at a pH of 2. Consequently, since TCP may be considered as a nanomaterial on the European market, it raises the question of its potential persistency in the gastrointestinal tract.
Collapse
Affiliation(s)
- Youssef El Moussaoui
- Nantes Université, CNRS, Institut des Matériaux de Nantes Jean Rouxel, IMN, F-44000 Nantes, France
- INRAE, UR1268 Biopolymères Interactions Assemblages, F-44316 Nantes, France
| | - Hélène Terrisse
- Nantes Université, CNRS, Institut des Matériaux de Nantes Jean Rouxel, IMN, F-44000 Nantes, France
| | - Sophie Quillard
- Nantes Université, CNRS, Institut des Matériaux de Nantes Jean Rouxel, IMN, F-44000 Nantes, France
| | | | - Bernard Humbert
- Nantes Université, CNRS, Institut des Matériaux de Nantes Jean Rouxel, IMN, F-44000 Nantes, France
| |
Collapse
|
3
|
Antonello G, Marucco A, Gazzano E, Kainourgios P, Ravagli C, Gonzalez-Paredes A, Sprio S, Padín-González E, Soliman MG, Beal D, Barbero F, Gasco P, Baldi G, Carriere M, Monopoli MP, Charitidis CA, Bergamaschi E, Fenoglio I, Riganti C. Changes of physico-chemical properties of nano-biomaterials by digestion fluids affect the physiological properties of epithelial intestinal cells and barrier models. Part Fibre Toxicol 2022; 19:49. [PMID: 35854319 PMCID: PMC9297619 DOI: 10.1186/s12989-022-00491-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 06/29/2022] [Indexed: 12/15/2022] Open
Abstract
Background The widespread use of nano-biomaterials (NBMs) has increased the chance of human exposure. Although ingestion is one of the major routes of exposure to NBMs, it is not thoroughly studied to date. NBMs are expected to be dramatically modified following the transit into the oral-gastric-intestinal (OGI) tract. How these transformations affect their interaction with intestinal cells is still poorly understood. NBMs of different chemical nature—lipid-surfactant nanoparticles (LSNPs), carbon nanoparticles (CNPs), surface modified Fe3O4 nanoparticles (FNPs) and hydroxyapatite nanoparticles (HNPs)—were treated in a simulated human digestive system (SHDS) and then characterised. The biological effects of SHDS-treated and untreated NBMs were evaluated on primary (HCoEpiC) and immortalised (Caco-2, HCT116) epithelial intestinal cells and on an intestinal barrier model. Results The application of the in vitro SDHS modified the biocompatibility of NBMs on gastrointestinal cells. The differences between SHDS-treated and untreated NBMs could be attributed to the irreversible modification of the NBMs in the SHDS. Aggregation was detected for all NBMs regardless of their chemical nature, while pH- or enzyme-mediated partial degradation was detected for hydroxyapatite or polymer-coated iron oxide nanoparticles and lipid nanoparticles, respectively. The formation of a bio-corona, which contains proteases, was also demonstrated on all the analysed NBMs. In viability assays, undifferentiated primary cells were more sensitive than immortalised cells to digested NBMs, but neither pristine nor treated NBMs affected the intestinal barrier viability and permeability. SHDS-treated NBMs up-regulated the tight junction genes (claudin 3 and 5, occludin, zonula occludens 1) in intestinal barrier, with different patterns between each NBM, and increase the expression of both pro- and anti-inflammatory cytokines (IL-1β, TNF-α, IL-22, IL-10). Notably, none of these NBMs showed any significant genotoxic effect. Conclusions Overall, the results add a piece of evidence on the importance of applying validated in vitro SHDS models for the assessment of NBM intestinal toxicity/biocompatibility. We propose the association of chemical and microscopic characterization, SHDS and in vitro tests on both immortalised and primary cells as a robust screening pipeline useful to monitor the changes in the physico-chemical properties of ingested NBMs and their effects on intestinal cells. Supplementary Information The online version contains supplementary material available at 10.1186/s12989-022-00491-w.
Collapse
Affiliation(s)
- Giulia Antonello
- Department of Chemistry, University of Turin, Via Pietro Giuria 7, 10125, Turin, Italy.,Department of Public Health and Pediatrics, University of Turin, Piazza Polonia, 94, 10126, Turin, Italy.,Department of Oncology, University of Turin, Via Santena 5 bis, 10126, Turin, Italy
| | - Arianna Marucco
- Department of Life Sciences and Systems Biology, University of Turin, Via Accademia Albertina 13, 10123, Turin, Italy
| | - Elena Gazzano
- Department of Life Sciences and Systems Biology, University of Turin, Via Accademia Albertina 13, 10123, Turin, Italy
| | - Panagiotis Kainourgios
- Research Unit of Advanced, Composite, Nano-Materials and Nanotechnology, School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou St., 15780, Zographos, Athens, Greece
| | - Costanza Ravagli
- Colorobbia Consulting Srl, Headwork, Via Pietramarina, 53, 50059, Sovigliana, Vinci, FI, Italy
| | | | - Simone Sprio
- National Research Council, Institute of Science and Technology for Ceramics ISTEC-CNR, Via Granarolo 64, 48018, Faenza, RA, Italy
| | - Esperanza Padín-González
- Department of Chemistry, Royal College of Surgeons in Ireland (RCSI), 123 St Stephen Green, Dublin 2, Ireland
| | - Mahmoud G Soliman
- Department of Chemistry, Royal College of Surgeons in Ireland (RCSI), 123 St Stephen Green, Dublin 2, Ireland
| | - David Beal
- CEA, CNRS, IRIG, SyMMES-CIBEST, Université Grenoble Alpes, 38000, Grenoble, France
| | - Francesco Barbero
- Department of Chemistry, University of Turin, Via Pietro Giuria 7, 10125, Turin, Italy
| | - Paolo Gasco
- Nanovector Srl, Headwork, Via Livorno 60, 10144, Turin, Italy
| | - Giovanni Baldi
- Colorobbia Consulting Srl, Headwork, Via Pietramarina, 53, 50059, Sovigliana, Vinci, FI, Italy
| | - Marie Carriere
- CEA, CNRS, IRIG, SyMMES-CIBEST, Université Grenoble Alpes, 38000, Grenoble, France
| | - Marco P Monopoli
- Department of Chemistry, Royal College of Surgeons in Ireland (RCSI), 123 St Stephen Green, Dublin 2, Ireland
| | - Costas A Charitidis
- Research Unit of Advanced, Composite, Nano-Materials and Nanotechnology, School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou St., 15780, Zographos, Athens, Greece
| | - Enrico Bergamaschi
- Department of Public Health and Pediatrics, University of Turin, Piazza Polonia, 94, 10126, Turin, Italy
| | - Ivana Fenoglio
- Department of Chemistry, University of Turin, Via Pietro Giuria 7, 10125, Turin, Italy.
| | - Chiara Riganti
- Department of Oncology, University of Turin, Via Santena 5 bis, 10126, Turin, Italy.
| |
Collapse
|