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Viora L, Tichané T, Nottelet B, Mouton J, Garric X, Van Den Berghe H, Coudane J. Casein-based conjugates and graft copolymers. Synthesis, properties, and applications. Compr Rev Food Sci Food Saf 2024; 23:e13306. [PMID: 38369928 DOI: 10.1111/1541-4337.13306] [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: 08/25/2023] [Revised: 01/15/2024] [Accepted: 01/22/2024] [Indexed: 02/20/2024]
Abstract
Biobased natural polymers, including polymers of natural origin such as casein, are growing rapidly in the light of the environmental pollution caused by many mass-produced commercial synthetic polymers. Although casein has interesting intrinsic properties, especially for the food industry, numerous chemical reactions have been carried out to broaden the range of its properties, most of them preserving casein's nontoxicity and biodegradability. New conjugates and graft copolymers have been developed especially by Maillard reaction of the amine functions of the casein backbone with the aldehyde functions of sugars, polysaccharides, or other molecules. Carried out with dialdehydes, these reactions lead to the cross-linking of casein giving three-dimensional polymers. Acylation and polymerization of various monomers initiated by amine functions are also described. Other reactions, far less numerous, involve alcohol and carboxylic acid functions in casein. This review provides an overview of casein-based conjugates and graft copolymers, their properties, and potential applications.
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Affiliation(s)
- Laurianne Viora
- IBMM (Institut des Biomolécules Max Mousseron), CNRS, Montpellier University, ENSCM, Department "Polymers for Health and Biomaterials", Pôle Chimie Balard, Montpellier, France
| | - Teddy Tichané
- IBMM (Institut des Biomolécules Max Mousseron), CNRS, Montpellier University, ENSCM, Department "Polymers for Health and Biomaterials", Pôle Chimie Balard, Montpellier, France
| | - Benjamin Nottelet
- IBMM (Institut des Biomolécules Max Mousseron), CNRS, Montpellier University, ENSCM, Department "Polymers for Health and Biomaterials", Pôle Chimie Balard, Montpellier, France
| | - Julia Mouton
- Polymers Composites and Hybrids (PPCH), IMT Mines d'Alès, Alès, France
- EPF Graduate School of Engineering, Montpellier, France
| | - Xavier Garric
- IBMM (Institut des Biomolécules Max Mousseron), CNRS, Montpellier University, ENSCM, Department "Polymers for Health and Biomaterials", Pôle Chimie Balard, Montpellier, France
- Department of Pharmacy, Nîmes University Hospital, Nimes, France
| | - Hélène Van Den Berghe
- IBMM (Institut des Biomolécules Max Mousseron), CNRS, Montpellier University, ENSCM, Department "Polymers for Health and Biomaterials", Pôle Chimie Balard, Montpellier, France
| | - Jean Coudane
- IBMM (Institut des Biomolécules Max Mousseron), CNRS, Montpellier University, ENSCM, Department "Polymers for Health and Biomaterials", Pôle Chimie Balard, Montpellier, France
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Chen N, Fu Y, Wang ZX, Zhao XH. Casein Lactose-Glycation of the Maillard-Type Attenuates the Anti-Inflammatory Potential of Casein Hydrolysate to IEC-6 Cells with Lipopolysaccharide Stimulation. Nutrients 2022; 14:nu14235067. [PMID: 36501097 PMCID: PMC9741451 DOI: 10.3390/nu14235067] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 11/09/2022] [Accepted: 11/27/2022] [Indexed: 11/30/2022] Open
Abstract
During the thermal processing of dairy products, the Maillard reaction occurs between milk proteins and lactose, resulting in the formation of various products including glycated proteins. In this study, lactose-glycated casein was generated through the Maillard reaction between casein and lactose and then hydrolyzed by a trypsin preparation. The anti-inflammatory effect of the resultant glycated casein hydrolysate (GCH) was investigated using the lipopolysaccharide (LPS)-sitmulated rat intestinal epithelial (IEC-6) cells as a cell model and corresponding casein hydrolysate (CH) as a control. The results indicated that the preformed glycation enabled lactose conjugation to casein, which endowed GCH with a lactose content of 12.61 g/kg protein together with a lower activity than CH to enhance the viability value of the IEC-6 cells. The cells with LPS stimulation showed significant inflammatory responses, while a pre-treatment of the cells with GCH before LPS stimulation consistently led to a decreased secretion of three pro-inflammatory mediators, namely, IL-6, IL-1β and tumor necrosis factor-α (TNF-α) but an increased secretion of two anti-inflammatory mediators, including IL-10 and transforming growth factor-β (TGF-β), demonstrating the anti-inflammatory potential of GCH in LPS-stimulated cells. In addition, GCH up-regulated the expression of TLR4, p-p38, and p-p65 proteins in the stimulated cells, resulting in the suppression of NF-κB and MAPK signaling pathways. Collectively, GCH was mostly less efficient than CH to exert these assessed anti-inflammatory activities in the cells and more importantly, GCH also showed an ability to cause cell inflammation by promoting IL-6 secretion and up-regulating the expression of TLR4 and p-p65. The casein lactose-glycation of the Maillard-type was thereby concluded to attenuate the anti-inflammatory potential of the resultant casein hydrolysate. It is highlighted that the casein lactose-glycation of the Maillard-type might cause a negative impact on the bioactivity of casein in the intestine, because the glycated casein after digestion could release GCH with reduced anti-inflammatory activity.
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Affiliation(s)
- Na Chen
- Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong University of Petrochemical Technology, Maoming 525000, China
- School of Biological and Food Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, China
- Research Centre of Food Nutrition and Human Healthcare, Guangdong University of Petrochemical, Maoming 525000, China
| | - Yu Fu
- College of Food Science, Southwest University, Chongqing 400715, China
| | - Zhen-Xing Wang
- Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong University of Petrochemical Technology, Maoming 525000, China
- School of Biological and Food Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, China
- Research Centre of Food Nutrition and Human Healthcare, Guangdong University of Petrochemical, Maoming 525000, China
| | - Xin-Huai Zhao
- Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong University of Petrochemical Technology, Maoming 525000, China
- School of Biological and Food Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, China
- Research Centre of Food Nutrition and Human Healthcare, Guangdong University of Petrochemical, Maoming 525000, China
- Correspondence: or ; Tel.: +86-668-2923716
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Structural Characteristics and Emulsifying Properties of Soy Protein Isolate Glycated with Galacto-Oligosaccharides under High-Pressure Homogenization. Foods 2022; 11:foods11213505. [PMID: 36360117 PMCID: PMC9656766 DOI: 10.3390/foods11213505] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 10/28/2022] [Accepted: 10/28/2022] [Indexed: 11/06/2022] Open
Abstract
This study explored the Maillard reaction process during the glycation of soy protein isolate (SPI) with galacto-oligosaccharides (GOSs) under high-pressure homogenization (HPH) and its effects on the emulsifying properties of SPI. SPI-GOS glycation under moderate pressure (80 MPa) significantly inhibited the occurrence and extent of the Maillard reaction (p < 0.05), but homogenization pressures in the range of 80−140 MPa gradually promoted this reaction. HPH caused a decrease in the surface hydrophobicity of the glycated protein, an increase in the abundance of free sulfhydryl groups, unfolding of the protein molecular structure, and the formation of new covalent bonds (C=O, C=N). Additionally, the particle size of emulsions created with SPI-GOS conjugates was reduced under HPH, thus improving the emulsifying properties of SPI. A reduction in particle size (117 nm), enhanced zeta potential (−23 mV), and uniform droplet size were observed for the emulsion created with the SPI-GOS conjugate prepared at 120 MPa. The conformational changes in the glycated protein supported the improved emulsification function. All results were significantly different (p < 0.05). The study findings indicate that HPH provides a potential method for controlling glycation and improving the emulsifying properties of SPI.
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Lactose Glycation of the Maillard-Type Impairs the Benefits of Caseinate Digest to the Weaned Rats for Intestinal Morphology and Serum Biochemistry. Foods 2021; 10:foods10092104. [PMID: 34574217 PMCID: PMC8468520 DOI: 10.3390/foods10092104] [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: 07/15/2021] [Revised: 08/29/2021] [Accepted: 09/02/2021] [Indexed: 11/16/2022] Open
Abstract
The Maillard reaction between the lactose and milk proteins unavoidably occurs during the thermal treatment of milk. Although the impact of this reaction on protein nutrition and safety has been well-studied, whether a lactose glycation of milk proteins of the Maillard-type might affect the rats in their growth and intestinal morphology needs an investigation. In this study, caseinate and lactose-glycated caseinate were digested using pepsin and trypsin. Afterward, the resultant caseinate digest and glycated caseinate digest (lactose content of 13.5 g/kg of protein) at 100, 200, and 400 mg/kg body weight (BW)/d were assessed for their effects on the female weaned Wistar rats in terms of daily body weight gain, intestinal morphology, digestive and brush-border enzyme activities, as well as serum chemical indices. The results showed that glycated caseinate digest always showed a weaker effect on rat than caseinate digest either at the 0-7 or 0-28 d feeding stage, and more importantly, at the highest dose of 400 mg/kg BW/d, it caused obvious adverse effect on the rats, reflected by lower values of these indices. Compared with caseinate digest, glycated caseinate digest in the rats caused 0.9-15.4% and 10.6-49.7% decreases in average daily gain of BW and small intestinal length, 1.1-21.5% and 2.3-33.3% decreases in villus height and the ratio of villus height to crypt depth of the small intestine, or 0.3-57.6% and 0.2-55.7% decreases in digestive and critical brush-border enzyme activities, respectively. In addition, when the rats were fed with glycated caseinate digest, some serum indices related to oxidative stress status were enhanced dose-dependently. Lactose glycation of the Maillard-type is thus considered as a negative event of the Maillard reaction on milk proteins because this reaction might impair protein benefits to the body.
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Liu D, Zhang L, Wang Y, Li Z, Wang Z, Han J. Effect of high hydrostatic pressure on solubility and conformation changes of soybean protein isolate glycated with flaxseed gum. Food Chem 2020; 333:127530. [DOI: 10.1016/j.foodchem.2020.127530] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 07/03/2020] [Accepted: 07/05/2020] [Indexed: 12/11/2022]
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Composition and activity changes of the soluble water and ethanol extracts from white mulberry (Morus alba L.) fruits in response to thermal treatment. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2020. [DOI: 10.1007/s11694-019-00332-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Shi J, Zhao XH. Influence of the Maillard-type caseinate glycation with lactose on the intestinal barrier activity of the caseinate digest in IEC-6 cells. Food Funct 2019; 10:2010-2021. [DOI: 10.1039/c8fo02607f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The glycated caseinate digest of the Maillard-type shows lower capability than the caseinate digest to enhance the intestinal barrier function of IEC-6 cells.
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Affiliation(s)
- Jia Shi
- Key Laboratory of Dairy Science
- Ministry of Education
- Northeast Agricultural University
- Harbin 150030
- PR China
| | - Xin-Huai Zhao
- Key Laboratory of Dairy Science
- Ministry of Education
- Northeast Agricultural University
- Harbin 150030
- PR China
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Shi J, Fu Y, Zhao XH. Effects of Maillard-type caseinate glycation on the preventive action of caseinate digests in acrylamide-induced intestinal barrier dysfunction in IEC-6 cells. RSC Adv 2018; 8:38036-38046. [PMID: 35558620 PMCID: PMC9089819 DOI: 10.1039/c8ra08103d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Accepted: 11/06/2018] [Indexed: 01/13/2023] Open
Abstract
Dietary acrylamide has attracted widespread concern due to its toxic effects; however, its adverse impact on the intestines is less assessed. Protein glycation of the Maillard-type is widely used for property modification, but its potential effect on preventive efficacy of protein digest against the acrylamide-induced intestinal barrier dysfunction is quite unknown. Caseinate was thus glycated with lactose. Two tryptic digests from the glycated caseinate and untreated caseinate (namely GCN digest and CN digest) were then assessed for their protective effects against acrylamide-induced intestinal barrier dysfunction in the IEC-6 cell model. The results showed that acrylamide at 1.25–10 mmol L−1 dose-dependently had cytotoxic effects on IEC-6 cells, leading to decreased cell viability and increased lactate dehydrogenase release. Acrylamide also brought about barrier dysfunction, including decreased trans-epithelial electrical resistance (TEER) value and increased epithelial permeability. However, the two digests at 12.5–100 μg mL−1 could alleviate this dysfunction via enhancing cell viability by 70.2–83.9%, partly restoring TEER values, and decreasing epithelial permeability from 100% to 76.6–94.1%. The two digests at 25 μg mL−1 strengthened the tight junctions via increasing tight junction proteins ZO-1, occludin, and claudin-1 expression by 11.5–68.6%. However, the results also suggested that the GCN digest always showed lower protective efficacy than the CN digest in the cells. It is concluded that Maillard-type caseinate glycation with lactose endows the resultant tryptic digest with impaired preventive effect against acrylamide-induced intestinal barrier dysfunction, highlighting another adverse effect of the Maillard reaction on food proteins. Glycated caseinate digest of the Maillard-type has lower protective action than caseinate digest against acrylamide-induced barrier dysfunction in IEC-6 cells.![]()
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Affiliation(s)
- Jia Shi
- Key Laboratory of Dairy Science
- Ministry of Education
- Northeast Agricultural University
- Harbin 150030
- PR China
| | - Yu Fu
- Department of Food Science
- Faculty of Science
- University of Copenhagen
- Frederiksberg 1958
- Denmark
| | - Xin-Huai Zhao
- Key Laboratory of Dairy Science
- Ministry of Education
- Northeast Agricultural University
- Harbin 150030
- PR China
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Shi J, Zhao XH. In vitro immuno-modulatory ability of tryptic caseinate hydrolysate affected by prior caseinate glycation using the Maillard reaction or transglutaminase. FOOD AGR IMMUNOL 2017. [DOI: 10.1080/09540105.2017.1325842] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Affiliation(s)
- Jia Shi
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin, People’s Republic of China
| | - Xin-Huai Zhao
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin, People’s Republic of China
- Department of Food Science, Northeast Agricultural University Harbin, People’s Republic of China
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