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Blanco-Doval A, Barron LJR, Aldai N. Nutritional Quality and Socio-Ecological Benefits of Mare Milk Produced under Grazing Management. Foods 2024; 13:1412. [PMID: 38731783 PMCID: PMC11083796 DOI: 10.3390/foods13091412] [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: 03/14/2024] [Revised: 04/23/2024] [Accepted: 04/24/2024] [Indexed: 05/13/2024] Open
Abstract
This review discusses the scientific evidence that supports the nutritional value of mare milk and how its properties are essentially achieved when mares are managed under grazing conditions. Mare milk's similarity with the chemical composition of human milk makes this food and its derived products not only suitable for human consumption but also an interesting food regarding human health. The contribution of horse breeding under grazing management to other socio-ecological benefits generated by equine farms is also highlighted. Both the high added value of mare milk and the socio-ecological benefits derived from pasture-based systems could be explored to improve the performance of equine farms located in arid and semi-arid areas or in regions with moderately harsh environmental conditions as equids have a strong adaptation capacity.
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Affiliation(s)
| | | | - Noelia Aldai
- Lactiker Research Group, Department of Pharmacy and Food Sciences, Faculty of Pharmacy, University of the Basque Country (UPV/EHU), 01006 Vitoria-Gasteiz, Spain; (A.B.-D.); (L.J.R.B.)
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2
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Kergomard J, Carrière F, Paboeuf G, Chonchon L, Barouh N, Vié V, Bourlieu C. Interfacial adsorption and activity of pancreatic lipase-related protein 2 onto heterogeneous plant lipid model membranes. Biochimie 2023; 215:12-23. [PMID: 37062468 DOI: 10.1016/j.biochi.2023.04.001] [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: 12/20/2022] [Revised: 03/24/2023] [Accepted: 04/04/2023] [Indexed: 04/18/2023]
Abstract
Pancreatic lipase related-protein 2 (PLRP2) exhibits remarkable galactolipase and phospholipase A1 activities, which depend greatly on the supramolecular organization of the substrates and the presence of surfactant molecules such as bile salts. The objective of the study was to understand the modulation of the adsorption mechanisms and enzymatic activity of Guinea pig PLRP2 (gPLRP2), by the physical environment of the enzyme and the physical state of its substrate. Langmuir monolayers were used to reproduce homogeneous and heterogeneous photosynthetic model membranes containing galactolipids (GL), and/or phospholipids (PL), and/or phytosterols (pS), presenting uncharged or charged interfaces. The same lipid mixtures were also used to form micrometric liposomes, and their gPLRP2 catalyzed digestion kinetics were investigated in presence or in absence of bile salts (NaTDC) during static in vitro, so called "bulk", digestion. The enzymatic activity of gPLRP2 onto the galactolipid-based monolayers was characterized with an optimum activity at 15 mN/m, in the absence of bile salts. gPLRP2 showed enhanced adsorption onto biomimetic model monolayer containing negatively charged lipids. However, the compositional complexity in the heterogeneous uncharged model systems induced a lag phase before the initiation of lipolysis. In bulk, no enzymatic activity could be demonstrated on GL-based liposomes in the absence of bile salts, probably due to the high lateral pressure of the lipid bilayers. In the presence of NaTDC (4 mM), however, gPLRP2 showed both high galactolipase and moderate phospholipase A1 activities on liposomes, probably due to a decrease in packing and lateral pressure upon NaTDC adsorption, and subsequent disruption of liposomes.
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Affiliation(s)
- Jeanne Kergomard
- IPR Institute of Physics, Université de Rennes, France; INRAE/UM/Institut Agro Montpellier UMR 1208 IATE, France
| | - Frédéric Carrière
- Aix-Marseille Université, CNRS, UMR7281 Bioénergétique et Ingénierie des Protéines, Marseille, France
| | - Gilles Paboeuf
- IPR Institute of Physics, Université de Rennes, France; Univ Rennes, CNRS, ScanMAT - UMS 2001, F-35042, Rennes, France
| | | | - Nathalie Barouh
- CIRAD, UMR QUALISUD, F34398, Montpellier, France; Qualisud, Univ Montpellier, Avignon Université, CIRAD, Institut Agro, Université de La Réunion, Montpellier, France
| | - Véronique Vié
- IPR Institute of Physics, Université de Rennes, France; Univ Rennes, CNRS, ScanMAT - UMS 2001, F-35042, Rennes, France.
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3
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Loesel H, Shakiba N, Wenck S, Le Tan P, Karstens TO, Creydt M, Seifert S, Hackl T, Fischer M. Food Monitoring: Limitations of Accelerated Storage to Predict Molecular Changes in Hazelnuts ( Corylus avellana L.) under Realistic Conditions Using UPLC-ESI-IM-QTOF-MS. Metabolites 2023; 13:1031. [PMID: 37887356 PMCID: PMC10608644 DOI: 10.3390/metabo13101031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 09/13/2023] [Accepted: 09/22/2023] [Indexed: 10/28/2023] Open
Abstract
Accelerated storage is routinely used with pharmaceuticals to predict stability and degradation patterns over time. The aim of this is to assess the shelf life and quality under harsher conditions, providing crucial insights into their long-term stability and potential storage issues. This study explores the potential of transferring this approach to food matrices for shelf-life estimation. Therefore, hazelnuts were stored under accelerated short-term and realistic long-term conditions. Subsequently, they were analyzed with high resolution mass spectrometry, focusing on the lipid profile. LC-MS analysis has shown that many unique processes take place under accelerated conditions that do not occur or occur much more slowly under realistic conditions. This mainly involved the degradation of membrane lipids such as phospholipids, ceramides, and digalactosyldiacylglycerides, while oxidation processes occurred at different rates in both conditions. It can be concluded that a food matrix is far too complex and heterogeneous compared to pharmaceuticals, so that many more processes take place during accelerated storage, which is why the results cannot be used to predict molecular changes in hazelnuts stored under realistic conditions.
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Affiliation(s)
- Henri Loesel
- Hamburg School of Food Science, Institute of Food Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany; (H.L.); (N.S.); (S.W.); (P.L.T.); (T.-O.K.); (M.C.); (S.S.); (T.H.)
| | - Navid Shakiba
- Hamburg School of Food Science, Institute of Food Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany; (H.L.); (N.S.); (S.W.); (P.L.T.); (T.-O.K.); (M.C.); (S.S.); (T.H.)
- Institute of Organic Chemistry, University of Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg, Germany
| | - Soeren Wenck
- Hamburg School of Food Science, Institute of Food Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany; (H.L.); (N.S.); (S.W.); (P.L.T.); (T.-O.K.); (M.C.); (S.S.); (T.H.)
| | - Phat Le Tan
- Hamburg School of Food Science, Institute of Food Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany; (H.L.); (N.S.); (S.W.); (P.L.T.); (T.-O.K.); (M.C.); (S.S.); (T.H.)
| | - Tim-Oliver Karstens
- Hamburg School of Food Science, Institute of Food Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany; (H.L.); (N.S.); (S.W.); (P.L.T.); (T.-O.K.); (M.C.); (S.S.); (T.H.)
| | - Marina Creydt
- Hamburg School of Food Science, Institute of Food Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany; (H.L.); (N.S.); (S.W.); (P.L.T.); (T.-O.K.); (M.C.); (S.S.); (T.H.)
| | - Stephan Seifert
- Hamburg School of Food Science, Institute of Food Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany; (H.L.); (N.S.); (S.W.); (P.L.T.); (T.-O.K.); (M.C.); (S.S.); (T.H.)
| | - Thomas Hackl
- Hamburg School of Food Science, Institute of Food Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany; (H.L.); (N.S.); (S.W.); (P.L.T.); (T.-O.K.); (M.C.); (S.S.); (T.H.)
- Institute of Organic Chemistry, University of Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg, Germany
| | - Markus Fischer
- Hamburg School of Food Science, Institute of Food Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany; (H.L.); (N.S.); (S.W.); (P.L.T.); (T.-O.K.); (M.C.); (S.S.); (T.H.)
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4
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Sahaka M, Mateos-Diaz E, Amara S, Wattanakul J, Gray D, Lafont D, Gontero B, Launay H, Carrière F. In situ monitoring of galactolipid digestion by infrared spectroscopy in both model micelles and spinach chloroplasts. Chem Phys Lipids 2023; 252:105291. [PMID: 36918051 DOI: 10.1016/j.chemphyslip.2023.105291] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 03/01/2023] [Accepted: 03/09/2023] [Indexed: 03/14/2023]
Abstract
Galactolipids are the main lipids from plant photosynthetic membranes and they can be digested by pancreatic lipase related protein 2 (PLRP2), an enzyme found in the pancreatic secretion in many animal species. Here, we used transmission Fourier-transform infrared spectroscopy (FTIR) to monitor continuously the hydrolysis of galactolipids by PLRP2, in situ and in real time. The method was first developed with a model substrate, a synthetic monogalactosyl diacylglycerol with 8-carbon acyl chains (C8-MGDG), in the form of mixed micelles with a bile salt, sodium taurodeoxycholate (NaTDC). The concentrations of the residual substrate and reaction products (monogalactosylmonoglyceride, MGMG; monogalactosylglycerol, MGG; octanoic acid) were estimated from the carbonyl and carboxylate vibration bands after calibration with reference standards. The results were confirmed by thin layer chromatography analysis (TLC) and specific staining of galactosylated compounds with thymol and sulfuric acid. The method was then applied to the lipolysis of more complex substrates, a natural extract of MGDG with long acyl chains, micellized with NaTDC, and intact chloroplasts isolated from spinach leaves. After a calibration performed with α-linolenic acid, the main fatty acid (FA) found in plant galactolipids, FTIR allowed quantitative measurement of chloroplast lipolysis by PLRP2. A full release of FA from membrane galactolipids was observed, that was not dependent on the presence of bile salts. Nevertheless, the evolution of amide vibration band in FTIR spectra suggested the interaction of membrane proteins with NaTDC and lipolysis products.
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Affiliation(s)
- Moulay Sahaka
- Aix Marseille Univ, CNRS, UMR7281 Bioénergétique et Ingénierie des Protéines, 31 Chemin Joseph Aiguier, 13009 Marseille, France
| | - Eduardo Mateos-Diaz
- Aix Marseille Univ, CNRS, UMR7281 Bioénergétique et Ingénierie des Protéines, 31 Chemin Joseph Aiguier, 13009 Marseille, France
| | - Sawsan Amara
- Lipolytech, Zone Luminy Biotech, 163 avenue de Luminy, 13288 Marseille Cedex 09, France
| | - Jutarat Wattanakul
- Division of Food, Nutrition and Dietetics, School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough, Leicestershire LE12 5RD, United Kingdom; Department of Food Science and Technology, Faculty of Home Economics Technology, Rajamangala University of Technology Krungthep, Bangkok 10120, Thailand
| | - David Gray
- Division of Food, Nutrition and Dietetics, School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough, Leicestershire LE12 5RD, United Kingdom
| | - Dominique Lafont
- Laboratoire de Chimie Organique 2-GLYCO, ICBMS UMR 5246, CNRS-Université Claude Bernard Lyon 1, Université de Lyon, bâtiment Lederer, 1 rue Victor Grignard, 69622 Villeurbanne Cedex, France
| | - Brigitte Gontero
- Aix Marseille Univ, CNRS, UMR7281 Bioénergétique et Ingénierie des Protéines, 31 Chemin Joseph Aiguier, 13009 Marseille, France
| | - Hélène Launay
- Aix Marseille Univ, CNRS, UMR7281 Bioénergétique et Ingénierie des Protéines, 31 Chemin Joseph Aiguier, 13009 Marseille, France
| | - Frédéric Carrière
- Aix Marseille Univ, CNRS, UMR7281 Bioénergétique et Ingénierie des Protéines, 31 Chemin Joseph Aiguier, 13009 Marseille, France.
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Aselmeyer C, Légeret B, Bénarouche A, Sorigué D, Parsiegla G, Beisson F, Carrière F. Fatty Acid Photodecarboxylase Is an Interfacial Enzyme That Binds to Lipid-Water Interfaces to Access Its Insoluble Substrate. Biochemistry 2021; 60:3200-3212. [PMID: 34633183 DOI: 10.1021/acs.biochem.1c00317] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Fatty acid photodecarboxylase (FAP), one of the few natural photoenzymes characterized so far, is a promising biocatalyst for lipid-to-hydrocarbon conversion using light. However, the optimum supramolecular organization under which the fatty acid (FA) substrate should be presented to FAP has not been addressed. Using palmitic acid embedded in phospholipid liposomes, phospholipid-stabilized microemulsions, and mixed micelles, we show that FAP displays a preference for FAs present in liposomes and at the surface of microemulsions. The kinetics of adsorption onto phospholipid and galactolipid monomolecular films further suggests the ability of FAP to bind to and penetrate into membranes, with a higher affinity in the presence of FAs. The FAP structure reveals a potential interfacial recognition site with clusters of hydrophobic and basic residues surrounding the active site entrance. The resulting dipolar moment suggests the orientation of FAP at negatively charged interfaces. These findings provide important clues about the mode of action of FAP and the development of FAP-based bioconversion processes.
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Affiliation(s)
- Cyril Aselmeyer
- Aix Marseille Université, CNRS, UMR 7281 Bioénergétique et Ingénierie des Protéines, 13009 Marseille, France.,CEA, CNRS, Aix Marseille Université, Biosciences and Biotechnologies Institute of Aix-Marseille (BIAM), UMR 7265, CEA Cadarache, 13108 Saint-Paul-lez-Durance, France
| | - Bertrand Légeret
- CEA, CNRS, Aix Marseille Université, Biosciences and Biotechnologies Institute of Aix-Marseille (BIAM), UMR 7265, CEA Cadarache, 13108 Saint-Paul-lez-Durance, France
| | - Anaïs Bénarouche
- Aix Marseille Université, CNRS, UMR 7281 Bioénergétique et Ingénierie des Protéines, 13009 Marseille, France
| | - Damien Sorigué
- CEA, CNRS, Aix Marseille Université, Biosciences and Biotechnologies Institute of Aix-Marseille (BIAM), UMR 7265, CEA Cadarache, 13108 Saint-Paul-lez-Durance, France
| | - Goetz Parsiegla
- Aix Marseille Université, CNRS, UMR 7281 Bioénergétique et Ingénierie des Protéines, 13009 Marseille, France
| | - Fred Beisson
- CEA, CNRS, Aix Marseille Université, Biosciences and Biotechnologies Institute of Aix-Marseille (BIAM), UMR 7265, CEA Cadarache, 13108 Saint-Paul-lez-Durance, France
| | - Frédéric Carrière
- Aix Marseille Université, CNRS, UMR 7281 Bioénergétique et Ingénierie des Protéines, 13009 Marseille, France
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6
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Sahaka M, Amara S, Wattanakul J, Gedi MA, Aldai N, Parsiegla G, Lecomte J, Christeller JT, Gray D, Gontero B, Villeneuve P, Carrière F. The digestion of galactolipids and its ubiquitous function in Nature for the uptake of the essential α-linolenic acid. Food Funct 2020; 11:6710-6744. [PMID: 32687132 DOI: 10.1039/d0fo01040e] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Galactolipids, mainly monogalactosyl diglycerides and digalactosyl diglycerides are the main lipids found in the membranes of plants, algae and photosynthetic microorganisms like microalgae and cyanobacteria. As such, they are the main lipids present at the surface of earth. They may represent up to 80% of the fatty acid stocks, including a large proportion of polyunsaturated fatty acids mainly α-linolenic acid (ALA). Nevertheless, the interest in these lipids for nutrition and other applications remains overlooked, probably because they are dispersed in the biomass and are not as easy to extract as vegetable oils from oleaginous fruit and oil seeds. Another reason is that galactolipids only represent a small fraction of the acylglycerolipids present in modern human diet. In herbivores such as horses, fish and folivorous insects, galactolipids may however represent the main source of dietary fatty acids due to their dietary habits and digestion physiology. The development of galactolipase assays has led to the identification and characterization of the enzymes involved in the digestion of galactolipids in the gastrointestinal tract, as well as by microorganisms. Pancreatic lipase-related protein 2 (PLRP2) has been identified as an important factor of galactolipid digestion in humans, together with pancreatic carboxyl ester hydrolase (CEH). The levels of PLRP2 are particularly high in monogastric herbivores thus highlighting the peculiar role of PLRP2 in the digestion of plant lipids. Similarly, pancreatic lipase homologs are found to be expressed in the midgut of folivorous insects, in which a high galactolipase activity can be measured. In fish, however, CEH is the main galactolipase involved. This review discusses the origins and fatty acid composition of galactolipids and the physiological contribution of galactolipid digestion in various species. This overlooked aspect of lipid digestion ensures not only the intake of ALA from its main natural source, but also the main lipid source of energy for growth of some herbivorous species.
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Affiliation(s)
- Moulay Sahaka
- Aix Marseille Univ, CNRS, UMR7281 Bioénergétique et Ingénierie des Protéines, 31 Chemin Joseph Aiguier, 13009 Marseille, France.
| | - Sawsan Amara
- Lipolytech, Zone Luminy Biotech, 163 avenue de Luminy, 13288 Marseille Cedex 09, France
| | - Jutarat Wattanakul
- Division of Food, Nutrition and Dietetics, School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough, Leicestershire, LE12 5RD, UK
| | - Mohamed A Gedi
- Division of Food, Nutrition and Dietetics, School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough, Leicestershire, LE12 5RD, UK
| | - Noelia Aldai
- Lactiker Research Group, Department of Pharmacy & Food Sciences, University of the Basque Country (UPV/EHU), 01006 Vitoria-Gasteiz, Spain
| | - Goetz Parsiegla
- Aix Marseille Univ, CNRS, UMR7281 Bioénergétique et Ingénierie des Protéines, 31 Chemin Joseph Aiguier, 13009 Marseille, France.
| | | | - John T Christeller
- The New Zealand Institute for Plant and Food Research Ltd (Plant & Food Research), Palmerston North Research Centre, Palmerston North, New Zealand
| | - David Gray
- Division of Food, Nutrition and Dietetics, School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough, Leicestershire, LE12 5RD, UK
| | - Brigitte Gontero
- Aix Marseille Univ, CNRS, UMR7281 Bioénergétique et Ingénierie des Protéines, 31 Chemin Joseph Aiguier, 13009 Marseille, France.
| | | | - Frédéric Carrière
- Aix Marseille Univ, CNRS, UMR7281 Bioénergétique et Ingénierie des Protéines, 31 Chemin Joseph Aiguier, 13009 Marseille, France.
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Salhi A, Amara S, Mansuelle P, Puppo R, Lebrun R, Gontero B, Aloulou A, Carrière F. Characterization of all the lipolytic activities in pancreatin and comparison with porcine and human pancreatic juices. Biochimie 2020; 169:106-120. [DOI: 10.1016/j.biochi.2019.07.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Accepted: 07/04/2019] [Indexed: 10/26/2022]
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Wattanakul J, Sahaka M, Amara S, Mansor S, Gontero B, Carrière F, Gray D. In vitro digestion of galactolipids from chloroplast-rich fraction (CRF) of postharvest, pea vine field residue (haulm) and spinach leaves. Food Funct 2019; 10:7806-7817. [PMID: 31793593 DOI: 10.1039/c9fo01867k] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2023]
Abstract
The removal of intact chloroplasts from their cell wall confinement offers a novel way to obtain lipophilic nutrients from green biomass, especially carotenoids and galactolipids. These latter are the main membrane lipids in plants and they represent a major source of the essential α-linolenic acid (18:3; ALA). Nevertheless, knowledge on their digestion is still limited. We have developed a physical method of recovering a chloroplast-rich fraction (CRF) from green biomass and tested its digestibility in vitro under simulated gastrointestinal conditions. Using a two-step static model, CRF from both spinach leaves and postharvest, pea vine field residue (haulm) were first exposed to enzymes from rabbit gastric extracts and then either to pancreatic enzymes from human pancreatic juice (HPJ) or to porcine pancreatic extracts (PPE). The lipolysis of monogalactosyldiacylglycerol (MGDG) and digalactosyl diacylglycerol (DGDG) was monitored by thin layer chromatography and gas chromatography of fatty acid methyl esters. For both CRF preparations, MGDG and DGDG were converted to monogalactosylmonoacylglycerol (MGMG) and digalactosylmonoacylglycerol (DGMG), respectively, during the intestinal phase and ALA was the main fatty acid released. Galactolipids were more effectively hydrolysed by HPJ than by PPE, and PPE showed a higher activity on MGDG than on DGDG. These findings may be explained by the higher levels of galactolipase activity in HPJ compared to PPE, which mainly results from pancreatic lipase-related protein 2. Thus, we showed that CRF galactolipids are well digested by pancreatic enzymes and represent an interesting vehicle for ALA supplementation in human diet.
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Affiliation(s)
- Jutarat Wattanakul
- Division of Food, Nutrition and Dietetics, School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough, Leicestershire LE12 5RD, UK.
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9
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Belhaj I, Amara S, Parsiegla G, Sutto-Ortiz P, Sahaka M, Belghith H, Rousset A, Lafont D, Carrière F. Galactolipase activity of Talaromyces thermophilus lipase on galactolipid micelles, monomolecular films and UV-absorbing surface-coated substrate. Biochim Biophys Acta Mol Cell Biol Lipids 2018; 1863:1006-1015. [PMID: 29859246 DOI: 10.1016/j.bbalip.2018.05.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 05/08/2018] [Accepted: 05/29/2018] [Indexed: 10/16/2022]
Abstract
Talaromyces thermophilus lipase (TTL) was found to hydrolyze monogalactosyl diacylglycerol (MGDG) and digalactosyl diacylglycerol (DGDG) substrates presented in various forms to the enzyme. Different assay techniques were used for each substrate: pHstat with dioctanoyl galactolipid-bile salt mixed micelles, barostat with dilauroyl galactolipid monomolecular films spread at the air-water interface, and UV absorption using a novel MGDG substrate containing α-eleostearic acid as chromophore and coated on microtiter plates. The kinetic properties of TTL were compared to those of the homologous lipase from Thermomyces lanuginosus (TLL), guinea pig pancreatic lipase-related protein 2 and Fusarium solani cutinase. TTL was found to be the most active galactolipase, with a higher activity on micelles than on monomolecular films or surface-coated MGDG. Nevertheless, the UV absorption assay with coated MGDG was highly sensitive and allowed measuring significant activities with about 10 ng of enzymes, against 100 ng to 10 μg with the pHstat. TTL showed longer lag times than TLL for reaching steady state kinetics of hydrolysis with monomolecular films or surface-coated MGDG. These findings and 3D-modelling of TTL based on the known structure of TLL pointed out to two phenylalanine to leucine substitutions in TTL, that could be responsible for its slower adsorption at lipid-water interface. TTL was found to be more active on MGDG than on DGDG using both galactolipid-bile salt mixed micelles and galactolipid monomolecular films. These later experiments suggest that the second galactose on galactolipid polar head impairs the enzyme adsorption on its aggregated substrate.
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Affiliation(s)
- Inès Belhaj
- Laboratoire de Biotechnologie Moléculaire des Eucaryotes, Centre de Biotechnologies de Sfax, Université de Sfax, BP "1177", 3018 Sfax, Tunisia.
| | - Sawsan Amara
- Aix-Marseille Université, CNRS, Bioénergétique et Ingénierie des Protéines UMR 7281, 31 Chemin Joseph Aiguier, 13402 Marseille Cedex 20, France; Lipolytech, Zone Luminy Biotech Entreprises Case 922, 163 avenue de Luminy, 13288 Marseille Cedex 09, France
| | - Goetz Parsiegla
- Aix-Marseille Université, CNRS, Bioénergétique et Ingénierie des Protéines UMR 7281, 31 Chemin Joseph Aiguier, 13402 Marseille Cedex 20, France
| | - Priscila Sutto-Ortiz
- Aix-Marseille Université, CNRS, Bioénergétique et Ingénierie des Protéines UMR 7281, 31 Chemin Joseph Aiguier, 13402 Marseille Cedex 20, France
| | - Moulay Sahaka
- Aix-Marseille Université, CNRS, Bioénergétique et Ingénierie des Protéines UMR 7281, 31 Chemin Joseph Aiguier, 13402 Marseille Cedex 20, France
| | - Hafedh Belghith
- Laboratoire de Biotechnologie Moléculaire des Eucaryotes, Centre de Biotechnologies de Sfax, Université de Sfax, BP "1177", 3018 Sfax, Tunisia
| | - Audric Rousset
- Laboratoire de Chimie Organique II-Glycochimie, ICBMS UMR 5246, CNRS-Université Claude Bernard Lyon 1, Université de Lyon, Bâtiment Curien, 43 Boulevard du 11 Novembre 1918, 69622 Villeurbanne Cedex, France
| | - Dominique Lafont
- Laboratoire de Chimie Organique II-Glycochimie, ICBMS UMR 5246, CNRS-Université Claude Bernard Lyon 1, Université de Lyon, Bâtiment Curien, 43 Boulevard du 11 Novembre 1918, 69622 Villeurbanne Cedex, France
| | - Frédéric Carrière
- Aix-Marseille Université, CNRS, Bioénergétique et Ingénierie des Protéines UMR 7281, 31 Chemin Joseph Aiguier, 13402 Marseille Cedex 20, France.
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Affiliation(s)
- Uwe T. Bornscheuer
- Department of Biotechnology & Enzyme Catalysis, Institute of Biochemistry, Greifswald University, 17487 Greifswald, Germany
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11
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IR spectroscopy analysis of pancreatic lipase-related protein 2 interaction with phospholipids: 1. Discriminative recognition of mixed micelles versus liposomes. Chem Phys Lipids 2018; 211:52-65. [DOI: 10.1016/j.chemphyslip.2017.02.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Revised: 01/27/2017] [Accepted: 02/20/2017] [Indexed: 12/28/2022]
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Recombinant Lipase from Gibberella zeae Exhibits Broad Substrate Specificity: A Comparative Study on Emulsified and Monomolecular Substrate. Int J Mol Sci 2017; 18:ijms18071535. [PMID: 28718792 PMCID: PMC5536023 DOI: 10.3390/ijms18071535] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2017] [Revised: 07/02/2017] [Accepted: 07/02/2017] [Indexed: 11/17/2022] Open
Abstract
Using the classical emulsified system and the monomolecular film technique, the substrate specificity of recombinant Gibberella zeae lipase (rGZEL) that originates from Gibberella zeae was characterized in detail. Under the emulsified reaction system, both phospholipase and glycolipid hydrolytic activities were observed, except for the predominant lipase activity. The optimum conditions for different activity exhibition were also determined. Compared with its lipase activity, a little higher ratio of glycolipid hydrolytic activity (0.06) than phospholipase activity (0.02) was found. rGZEL preferred medium chain-length triglycerides, while lower activity was found for the longer-chain triglyceride. Using the monomolecular film technique, we found that the preference order of rGZEL to different phospholipids was 1,2-diacyl-sn-glycero-3-phospho-l-serine (PS) > 1,2-dioleoyl-sn-glycero-3-phospho-rac-(1-glycerol) sodium salt (PG) > 1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC) > l-α-phosphatidylinositol (PI) > cardiolipin (CL) > 3-sn-phosphatidic acid sodium salt (PA) > l-α-phosphatidylethanolamine (PE), while no hydrolytic activity was detected for sphingomyelin (SM). Moreover, rGZEL showed higher galactolipase activity on 1,2-distearoyimonoglactosylglyceride (MGDG). A kinetic study on the stereo- and regioselectivity of rGZEL was also performed by using three pairs of pseudodiglyceride enantiomers (DDGs). rGZEL presented higher preference for distal DDG enantiomers than adjacent ester groups, however, no hydrolytic activity to the sn-2 position of diglyceride analogs was found. Furthermore, rGZEL preferred the R configuration of DDG enantiomers. Molecular docking results were in concordance with in vitro tests.
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Jallouli R, Parsiegla G, Carrière F, Gargouri Y, Bezzine S. Efficient heterologous expression of Fusarium solani lipase, FSL2, in Pichia pastoris, functional characterization of the recombinant enzyme and molecular modeling. Int J Biol Macromol 2016; 94:61-71. [PMID: 27620466 DOI: 10.1016/j.ijbiomac.2016.09.030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Revised: 09/05/2016] [Accepted: 09/08/2016] [Indexed: 11/25/2022]
Abstract
The gene coding for a lipase of Fusarium solani, designated as FSL2, shows an open reading frame of 906bp encoding a 301-amino acid polypeptide with a molecular mass of 30kDa. Based on sequence similarity with other fungal lipases, FSL2 contains a catalytic triad, consisting of Ser144, Asp198, and His256. FSL2 cDNA was subcloned into the pGAPZαA vector containing the Saccharomyces cerevisiae α-factor signal sequence and this construct was used to transform Pichia pastoris and achieve a high-level extracellular production of a FSL2 lipase. Maximum lipase activity was observed after 48h. The optimum activity of the purified recombinant enzyme was measured at pH 8.0-9.0 and 37°C. FSL2 is remarkably stable at alkaline pH values up to 12 and at temperatures below 40°C. It has high catalytic efficiency towards triglycerides with short to long chain fatty acids but with a marked preference for medium and long chain fatty acids. FSL2 activity is decreased at sodium taurodeoxycholate concentrations above the Critical Micelle Concentration (CMC) of this anionic detergent. However, lipase activity is enhanced by Ca2+ and inhibited by EDTA or Cu2+ and partially by Mg2+ or K+. In silico docking of medium chain triglycerides, monogalctolipids (MGDG), digalactolipids (DGDG) and long chain phospholipids in the active site of FSL2 reveals structural solutions.
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Affiliation(s)
- Raida Jallouli
- University of Sfax, Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS route de Soukra, BPW 3038 Sfax, Tunisie
| | - Goetz Parsiegla
- CNRS, Aix Marseille Université, Enzymologie Interfaciale et Physiologie de la Lipolyse UMR7282, 31 Chemin Joseph Aiguier, 13402 Marseille Cedex 20, France
| | - Frédéric Carrière
- CNRS, Aix Marseille Université, Enzymologie Interfaciale et Physiologie de la Lipolyse UMR7282, 31 Chemin Joseph Aiguier, 13402 Marseille Cedex 20, France
| | - Youssef Gargouri
- University of Sfax, Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS route de Soukra, BPW 3038 Sfax, Tunisie
| | - Sofiane Bezzine
- University of Sfax, Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS route de Soukra, BPW 3038 Sfax, Tunisie.
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Ülker S, Placidi C, Point V, Gadenne B, Serveau-Avesque C, Canaan S, Carrière F, Cavalier JF. New lipase assay using Pomegranate oil coating in microtiter plates. Biochimie 2016; 120:110-8. [DOI: 10.1016/j.biochi.2015.09.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Accepted: 09/01/2015] [Indexed: 10/23/2022]
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Horse-meat for human consumption — Current research and future opportunities. Meat Sci 2015; 108:74-81. [DOI: 10.1016/j.meatsci.2015.05.006] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2014] [Revised: 05/01/2015] [Accepted: 05/12/2015] [Indexed: 11/22/2022]
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The galactolipase activity of Fusarium solani (phospho)lipase. Biochim Biophys Acta Mol Cell Biol Lipids 2015; 1851:282-9. [DOI: 10.1016/j.bbalip.2014.12.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Revised: 12/06/2014] [Accepted: 12/11/2014] [Indexed: 11/16/2022]
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Roussel A, Amara S, Nyyssölä A, Mateos-Diaz E, Blangy S, Kontkanen H, Westerholm-Parvinen A, Carrière F, Cambillau C. A Cutinase from Trichoderma reesei with a lid-covered active site and kinetic properties of true lipases. J Mol Biol 2014; 426:3757-3772. [PMID: 25219509 DOI: 10.1016/j.jmb.2014.09.003] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Revised: 09/02/2014] [Accepted: 09/04/2014] [Indexed: 02/05/2023]
Abstract
Cutinases belong to the α/β-hydrolase fold family of enzymes and degrade cutin and various esters, including triglycerides, phospholipids and galactolipids. Cutinases are able to degrade aggregated and soluble substrates because, in contrast with true lipases, they do not have a lid covering their catalytic machinery. We report here the structure of a cutinase from the fungus Trichoderma reesei (Tr) in native and inhibitor-bound conformations, along with its enzymatic characterization. A rare characteristic of Tr cutinase is its optimal activity at acidic pH. Furthermore, Tr cutinase, in contrast with classical cutinases, possesses a lid covering its active site and requires the presence of detergents for activity. In addition to the presence of the lid, the core of the Tr enzyme is very similar to other cutinase cores, with a central five-stranded β-sheet covered by helices on either side. The catalytic residues form a catalytic triad involving Ser164, His229 and Asp216 that is covered by the two N-terminal helices, which form the lid. This lid opens in the presence of surfactants, such as β-octylglucoside, and uncovers the catalytic crevice, allowing a C11Y4 phosphonate inhibitor to bind to the catalytic serine. Taken together, these results reveal Tr cutinase to be a member of a new group of lipolytic enzymes resembling cutinases but with kinetic and structural features of true lipases and a heightened specificity for long-chain triglycerides.
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Affiliation(s)
- Alain Roussel
- Architecture et Fonction des Macromolécules Biologiques, Aix Marseille Université, 13284 Marseille Cedex 09, France; Architecture et Fonction des Macromolécules Biologiques, UMR7257, Centre National de la Recherche Scientifique, 13288 Marseille Cedex 09, France
| | - Sawsan Amara
- Aix Marseille Université, UMR7282, Centre National de la Recherche Scientifique, 13402 Marseille Cedex 20, France
| | - Antti Nyyssölä
- VTT Biotechnology, P. O. Box 1000, FIN-02044 VTT, Finland
| | - Eduardo Mateos-Diaz
- Aix Marseille Université, UMR7282, Centre National de la Recherche Scientifique, 13402 Marseille Cedex 20, France
| | - Stéphanie Blangy
- Architecture et Fonction des Macromolécules Biologiques, Aix Marseille Université, 13284 Marseille Cedex 09, France; Architecture et Fonction des Macromolécules Biologiques, UMR7257, Centre National de la Recherche Scientifique, 13288 Marseille Cedex 09, France
| | | | | | - Frédéric Carrière
- Aix Marseille Université, UMR7282, Centre National de la Recherche Scientifique, 13402 Marseille Cedex 20, France
| | - Christian Cambillau
- Architecture et Fonction des Macromolécules Biologiques, Aix Marseille Université, 13284 Marseille Cedex 09, France; Architecture et Fonction des Macromolécules Biologiques, UMR7257, Centre National de la Recherche Scientifique, 13288 Marseille Cedex 09, France.
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