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Enzymatic synthesis of a novel glycolipid biosurfactant, mannosylerythritol lipid-D and its aqueous phase behavior. Carbohydr Res 2010; 346:266-71. [PMID: 21163471 DOI: 10.1016/j.carres.2010.11.025] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2010] [Revised: 11/15/2010] [Accepted: 11/22/2010] [Indexed: 11/20/2022]
Abstract
Mannosylerythritol lipids (MELs) produced by yeasts are one of the most promising glycolipid biosurfactants. In this study, we succeeded in the preparation of a novel MEL homolog having no acetyl groups, namely MEL-D. MEL-D was synthesized by lipase-catalyzed hydrolysis of acetyl groups from a known MEL, and identified as 4-O-[2',3'-di-O-alka(e)noyl-β-d-mannopyranosyl]-(2R,3S)-erythritol. The obtained MEL-D showed a higher critical aggregation concentration (CAC=1.2 × 10(-5)M) and hydrophilicity compared to known MELs, retaining an excellent surface tension lowering activity (the surface tension at the CAC was 24.5mN/m). In addition, we estimated the binary phase diagram of the MEL-D-water system based on a combination of visual inspection, polarized optical microscopy, and SAXS measurement. From these results, MEL-D was found to self-assemble into a lamellar (L(α)) structure over all ranges of concentration. Meanwhile, the one-phase L(α) region of MEL-D was extended wider than those of known MELs. MEL-D might keep more water between the polar layers in accordance with the extension of the interlayer spacing (d). These results suggest that the newly obtained MEL-D would facilitate the application of MELs in various fields as a lamellar-forming glycolipid with higher hydrate ability.
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52
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Zhao M, Gao Y, Zheng L. Lyotropic liquid crystalline phases formed in binary mixture of 1-tetradecyl-3-methylimidazolium chloride/ethylammonium nitrate and its application in the dispersion of multi-walled carbon nanotubes. Colloids Surf A Physicochem Eng Asp 2010. [DOI: 10.1016/j.colsurfa.2010.08.015] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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53
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Konishi MA, Fukuoka T, Shimane Y, Mori K, Nagano Y, Ohta Y, Kitamoto D, Hatada Y. Biochemical synthesis of novel, self-assembling glycolipids from ricinoleic acid by a recombinant α-glucosidase from Geobacillus sp. Biotechnol Lett 2010; 33:139-45. [DOI: 10.1007/s10529-010-0410-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2010] [Accepted: 09/09/2010] [Indexed: 10/19/2022]
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54
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Arutchelvi J, Doble M. Mannosylerythritol Lipids: Microbial Production and Their Applications. ACTA ACUST UNITED AC 2010. [DOI: 10.1007/978-3-642-14490-5_6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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55
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Faivre V, Rosilio V. Interest of glycolipids in drug delivery: from physicochemical properties to drug targeting. Expert Opin Drug Deliv 2010; 7:1031-48. [DOI: 10.1517/17425247.2010.511172] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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56
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Zhao M, Gao Y, Zheng L. Liquid Crystalline Phases of the Amphiphilic Ionic Liquid N-Hexadecyl-N-methylpyrrolidinium Bromide Formed in the Ionic Liquid Ethylammonium Nitrate and in Water. J Phys Chem B 2010; 114:11382-9. [DOI: 10.1021/jp103728x] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mingwei Zhao
- Key Laboratory of Colloid and Interface Chemistry, Shandong University, Ministry of Education, Jinan, Shandong, 250100, People’s Republic of China
| | - Yanan Gao
- Key Laboratory of Colloid and Interface Chemistry, Shandong University, Ministry of Education, Jinan, Shandong, 250100, People’s Republic of China
| | - Liqiang Zheng
- Key Laboratory of Colloid and Interface Chemistry, Shandong University, Ministry of Education, Jinan, Shandong, 250100, People’s Republic of China
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57
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Morita T, Kitagawa M, Yamamoto S, Sogabe A, Imura T, Fukuoka T, Kitamoto D. Glycolipid biosurfactants, mannosylerythritol lipids, repair the damaged hair. J Oleo Sci 2010; 59:267-72. [PMID: 20431244 DOI: 10.5650/jos.59.267] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Mannosylerythritol lipids (MELs), are produced from feedstock by the genus Pseudozyma, and are the most promising biosurfactants known due to its versatile interfacial and biochemical actions. In order to broaden the application in cosmetics, the hair care properties of MELs were investigated using damaged hair. On electron microscopic observation, the damaged hair was dramatically recovered with applying MEL-A and MEL-B. The tensile strength of the damaged hair increased by treatment with MEL-A (122.0 +/- 13.5 gf/p), MEL-B (119.4 +/- 7.6 gf/p) and ceramide (100.7 +/- 15.9 gf/p) compared with only lauryl glucoside (96.7 +/- 12.7 gf/p), indicating the advantage of MELs on hair care treatment. In addition, the average friction coefficient of the damaged hair was maintained after treatment with MEL-A (0.108 +/- 0.002), MEL-B (0.107 +/- 0.003) and the ceramide (0.111 +/- 0.003), although lauryl glucoside treatment increased the average friction coefficient (0.126 +/- 0.003). The increase of bending rigidity by treatment with lauryl glucoside (0.204 +/- 0.002) was prevented by treatment with MEL-A (0.129 +/- 0.002), MEL-B (0.176 +/- 0.003) and the ceramide (0.164 +/- 0.002). Consequently, MELs are proposed to be the new hair care ingredient, which are the highly useful agent for not only for the recovery of damaged hair but also for providing the smooth and flexible hair.
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Affiliation(s)
- Tomotake Morita
- Research Institute for Innovations in Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), Ibaraki
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58
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Ma F, Chen X, Zhao Y, Wang X, Li Q, Lv C, Yue X. A nonaqueous lyotropic liquid crystal fabricated by a polyoxyethylene amphiphile in protic ionic liquid. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:7802-7807. [PMID: 20131772 DOI: 10.1021/la9045995] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The aggregation behaviors of oleyl polyoxyethylene (10) ether, Brij 97, in room temperature ionic liquids, ethylammonium nitrate (EAN), pyrrolidinium nitrate ([Pyrr][NO(3)]), ethylammonium butyrate (EAB), 1-butyl-3-methylimidazolium hexafluorophosphate ([Bmim][PF(6)]), and 1-butyl-3-methylimidazolium tetrafluoroborate ([Bmim][BF(4)]), have been investigated. Only in the Brij 97/EAN binary system is the hexagonal liquid crystalline phase formed, and its ordering is found to decrease with increasing temperature. The lattice spacing values measured from the small-angle X-ray scattering (SAXS) shrink with reduction of ionic liquid content at room temperature. The general rules for aggregate formation in these ionic liquids are discussed and compared with that in water. A degraded ability to produce the ordered self-assembly of Brij 97 from H(2)O to EAN to [Bmim][PF(6)], [Bmim][BF(4)], [Pyrr][NO(3)], and EAB is found and analyzed based on the molecular packing and Gordon parameters and also hydrogen-bonding or solvophobic interactions. Steady-shear rheological measurements combined with the frequency sweep data indicate the highly viscoelastic nature of this liquid crystalline phase.
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Affiliation(s)
- Fumin Ma
- Key Laboratory of Colloid and Interface Chemistry, Shandong University, Ministry of Education, Jinan 250100, China
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59
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Konishi M, Fukuoka T, Nagahama T, Morita T, Imura T, Kitamoto D, Hatada Y. Biosurfactant-producing yeast isolated from Calyptogena soyoae (deep-sea cold-seep clam) in the deep sea. J Biosci Bioeng 2010; 110:169-75. [PMID: 20547357 DOI: 10.1016/j.jbiosc.2010.01.018] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2009] [Revised: 12/18/2009] [Accepted: 01/22/2010] [Indexed: 10/19/2022]
Abstract
We describe a detailed structure determination of biosurfactant produced by Pseudozyma hubeiensis SY62, which was newly isolated from Calyptogena soyoae (deep-sea cold-seep clam, Shirouri-gai) at 1156 m in Sagami bay. P. hubeiensis SY62 was taxonomically slightly different from the P. hubeiensis type strain, which produces biosurfactants. Glycolipid production by the strain was also slightly different from those of previously reported strains. BS productivity was estimated to be around 30 g/l from the weight of the crude extract. At least five different spots of glycolipid biosurfactants (BSs) were detected by TLC. Results of nuclear magnetic resonance spectroscopies indicated the major product, namely MEL-C (4-O-[4'-O-acetyl-2',3'-di-O-alka(e)noil-beta-d-mannopyranosyl]-d-erythritol), as a promising BS. By further structural determination, the major fatty acids of MEL-C were estimated to be saturated C(6), C(10), and C(12) acids, which were shorter than those of previously reported MEL-C. Furthermore, (1)H-NMR spectra implied the presence of C(2) acids as acyl groups. According to surface tension determination, the novel MEL-C showed larger critical micelle concentration (1.1x10(-5) M) than conventional MEL-C which bound C(10) and C(12) acids (9.1x10(-6) M). From these results, shorter fatty acids would confer hydrophilicity onto the novel MEL-C.
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Affiliation(s)
- Masaaki Konishi
- Institute of Biogeosciences, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15, Natsushima-cho, Yokosuka 237-0061, Japan.
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60
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Morita T, Kitagawa M, Suzuki M, Yamamoto S, Sogabe A, Yanagidani S, Imura T, Fukuoka T, Kitamoto D. A yeast glycolipid biosurfactant, mannosylerythritol lipid, shows potential moisturizing activity toward cultured human skin cells: the recovery effect of MEL-A on the SDS-damaged human skin cells. J Oleo Sci 2010; 58:639-42. [PMID: 19915321 DOI: 10.5650/jos.58.639] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Mannosylerythritol lipids (MELs) are produced in large amounts from renewable vegetable oils by Pseudozyma antarctica, and are the most promising biosurfactants known due to its versatile interfacial and biochemical actions. In order to broaden the application in cosmetics and pharmaceuticals, the skin care property of MEL-A, the major component of MELs, was investigated using a three-dimensional cultured human skin model. The skin cells were cultured and treated with sodium dodecyl sulfate (SDS) solution of 1 wt%, and the effects of different lipids on the SDS-damaged cells were then evaluated on the basis of the cell viability. The viability of the damaged cells was markedly recovered by the addition of MEL-A in a dose-dependent manner. Compared to the control, MEL-A solutions of 5 wt% and 10 wt% gave the recovery rate of 73% and 91%, respectively, while ceramide solution of 1 wt% gave the rate of over 100%. This revealed that MEL-A shows a ceramide-like moisturizing activity toward the skin cells. Considering the drawbacks of natural ceramides, namely limited amount and high production cost, the yeast biosurfactants should have a great potential as a novel moisturizer for treating the damaged skin.
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Affiliation(s)
- Tomotake Morita
- Research Institute for Innovations in Sustainable Chemistry, National institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8565, JAPAN
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61
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62
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Ariga K, Lee MV, Labuta J, Okamoto K, Hill JP. Studies on Langmuir monolayers of polyprenyl phosphates towards a possible scenario for origin of life. Colloids Surf B Biointerfaces 2009; 74:426-35. [DOI: 10.1016/j.colsurfb.2009.07.035] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2009] [Revised: 07/21/2009] [Accepted: 07/24/2009] [Indexed: 11/26/2022]
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63
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Kitamoto D, Morita T, Fukuoka T, Konishi MA, Imura T. Self-assembling properties of glycolipid biosurfactants and their potential applications. Curr Opin Colloid Interface Sci 2009. [DOI: 10.1016/j.cocis.2009.05.009] [Citation(s) in RCA: 205] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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64
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Angelov B, Angelova A, Vainio U, Garamus VM, Lesieur S, Willumeit R, Couvreur P. Long-living intermediates during a lamellar to a diamond-cubic lipid phase transition: a small-angle X-ray scattering investigation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2009; 25:3734-3742. [PMID: 19708151 DOI: 10.1021/la804225j] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
To generate nanostructured vehicles with tunable internal organization, the structural phase behavior of a self-assembled amphiphilic mixture involving poly(ethylene glycol) monooleate (MO-PEG) and glycerol monooleate (MO) is studied in excess aqueous medium by time-resolved small-angle X-ray scattering (SAXS) in the temperature range from 1 to 68 degrees C. The SAXS data indicate miscibility of the two components in lamellar and nonlamellar soft-matter nanostructures. The functionalization of the MO assemblies by a MO-PEG amphiphile, which has a flexible large hydrophilic moiety, appears to hinder the epitaxial growth of a double diamond (D) cubic lattice from the lamellar (L) bilayer structure during the thermal phase transition. The incorporated MO-PEG additive is found to facilitate the formation of structural intermediates. They exhibit greater characteristic spacings and large diffusive scattering in broad temperature and time intervals. Their features are compared with those of swollen long-living intermediates in MO/octylglucoside assemblies. A conclusion can be drawn that long-living intermediate states can be equilibrium stabilized in two- or multicomponent amphiphilic systems. Their role as cubic phase precursors is to smooth the structural distortions arising from curvature mismatch between flat and curved regions. The considered MO-PEG functionalized assemblies may be useful for preparation of sterically stabilized liquid-crystalline nanovehicles for confinement of therapeutic biomolecules.
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Affiliation(s)
- Borislav Angelov
- Institute of Biophysics, Bulgarian Academy of Sciences, BG-1113 Sofia, Bulgaria
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65
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Marqués A, Pinazo A, Farfan M, Aranda F, Teruel J, Ortiz A, Manresa A, Espuny M. The physicochemical properties and chemical composition of trehalose lipids produced by Rhodococcus erythropolis 51T7. Chem Phys Lipids 2009; 158:110-7. [DOI: 10.1016/j.chemphyslip.2009.01.001] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2008] [Revised: 12/23/2008] [Accepted: 01/06/2009] [Indexed: 10/21/2022]
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66
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Production of a novel glycolipid biosurfactant, mannosylmannitol lipid, by Pseudozyma parantarctica and its interfacial properties. Appl Microbiol Biotechnol 2009; 83:1017-25. [DOI: 10.1007/s00253-009-1945-4] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2009] [Revised: 03/02/2009] [Accepted: 03/03/2009] [Indexed: 10/21/2022]
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67
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Boyd BJ, Dong YD, Rades T. Nonlamellar liquid crystalline nanostructured particles: advances in materials and structure determination. J Liposome Res 2009; 19:12-28. [DOI: 10.1080/08982100802691983] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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68
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Phase behavior of ternary mannosylerythritol lipid/water/oil systems. Colloids Surf B Biointerfaces 2009; 68:207-12. [DOI: 10.1016/j.colsurfb.2008.10.009] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2008] [Revised: 09/30/2008] [Accepted: 10/05/2008] [Indexed: 11/19/2022]
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69
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Hirata Y, Ryu M, Igarashi K, Nagatsuka A, Furuta T, Kanaya S, Sugiura M. Natural Synergism of Acid and Lactone Type Mixed Sophorolipids in Interfacial Activities and Cytotoxicities. J Oleo Sci 2009; 58:565-72. [DOI: 10.5650/jos.58.565] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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70
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Fukuoka T, Kawamura M, Morita T, Imura T, Sakai H, Abe M, Kitamoto D. A basidiomycetous yeast, Pseudozyma crassa, produces novel diastereomers of conventional mannosylerythritol lipids as glycolipid biosurfactants. Carbohydr Res 2008; 343:2947-55. [DOI: 10.1016/j.carres.2008.08.034] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2008] [Revised: 08/25/2008] [Accepted: 08/31/2008] [Indexed: 11/24/2022]
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71
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Mannosylerythritol lipids: a review. J Ind Microbiol Biotechnol 2008; 35:1559-70. [PMID: 18716809 DOI: 10.1007/s10295-008-0460-4] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2008] [Accepted: 08/04/2008] [Indexed: 10/21/2022]
Abstract
Mannosylerythritol lipids (MELs) are surface active compounds that belong to the glycolipid class of biosurfactants (BSs). MELs are produced by Pseudozyma sp. as a major component while Ustilago sp. produces them as a minor component. Although MELs have been known for over five decades, they recently regained attention due to their environmental compatibility, mild production conditions, structural diversity, self-assembling properties and versatile biochemical functions. In this review, the MEL producing microorganisms, the production conditions, their applications, their diverse structures and self-assembling properties are discussed. The biosynthetic pathways and the regulatory mechanisms involved in the production of MEL are also explained here.
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72
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Worakitkanchanakul W, Imura T, Fukuoka T, Morita T, Sakai H, Abe M, Rujiravanit R, Chavadej S, Minamikawa H, Kitamoto D. Aqueous-phase behavior and vesicle formation of natural glycolipid biosurfactant, mannosylerythritol lipid-B. Colloids Surf B Biointerfaces 2008; 65:106-12. [DOI: 10.1016/j.colsurfb.2008.03.009] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2008] [Revised: 03/17/2008] [Accepted: 03/17/2008] [Indexed: 10/22/2022]
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73
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Kitamoto D. [Naturally engineered glycolipid biosurfactants leading to distinctive self-assembling properties]. YAKUGAKU ZASSHI 2008; 128:695-706. [PMID: 18451615 DOI: 10.1248/yakushi.128.695] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Biosurfactants (BS) are functional amphiphilic compounds produced by a variety of microorganisms. They show unique properties (e.g. mild production conditions, lower toxicity, and environmental compatibility) compared to chemically synthesized counterparts. The numerous advantages of BS have prompted applications not only in the food, cosmetic, and pharmaceutical industries but in energy and environmental technologies as well. Mannosylerythritol lipids (MELs) are one of the most promising BS known, and are produced at yields of over 100 g/l from vegetable oils by yeast strains belonging to the genus Pseudozyma. MELs exhibit excellent surface-active and self-assembling properties leading to the formation of different lyotropic liquid crystals such as sponge (L(3)), bicontinuous cubic (V(2)) and lamella (L(alpha)) phases. They also show versatile biochemical actions, including antitumor and differentiation-inducing activities against human leukemia cells, rat pheochromocytoma cells and mouse melanoma cells. MELs also display high binding affinity toward different immunoglobulins and lectins, indicating great potentials as new affinity ligands for the glycoproteins. More significantly, the cationic liposomes bearing MELs increase dramatically the efficiency of gene transfection into mammalian cells via membrane fusion processes. The yeast BS should thus be novel nanobiomaterials, and broaden their applications in various advanced technologies.
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Affiliation(s)
- Dai Kitamoto
- Research Institute for Innovation in Sustainable Chemistry, National Institute of Advanced Science and Technology (AIST), Tsukuba City, Japan.
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74
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Libster D, Ishai PB, Aserin A, Shoham G, Garti N. From the microscopic to the mesoscopic properties of lyotropic reverse hexagonal liquid crystals. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2008; 24:2118-2127. [PMID: 18197712 DOI: 10.1021/la702570v] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
In the present study we aimed to explore a correlation between the microstructural properties of the lyotropic reverse hexagonal phase (HII) of the GMO/tricaprylin/phosphatidylcholine/water system and its mesoscopic structure. The mesoscopic organization of discontinuous and anisotropic domains was examined, in the native state, using environmental scanning electron microscopy. The topography of the HII mesophases was imaged directly in their hydrated state, as a function of aqueous-phase concentration and composition, when a proline amino acid was solubilized into the systems as a kosmotropic (water-structure maker) guest molecule. The domain structures of several dozen micrometers in size, visualized in the environmental scanning electron microscopy, were found to possess fractal characteristics, indicating a discontinuous and disordered alignment of the corresponding internal water rods on the mesoscale. On the microstructural level, SAXS measurements revealed that as water content (Cw) increases the characteristic lattice parameter of the mesophases increases as well. Using the water concentration as the mass measure of the mixtures, a scaling relationship between the lattice parameter and the concentration was found to obey a power law whereby the derived fractal dimension was the relevant exponent, confirming the causal link between the microscopic and mesoscopic organizations. The topography of the HII mesophase was found to be affected by the microstructural parameters and the composition of the samples. Thermal analysis experiments involving these systems further confirmed that the behavior of water underpins both microscopical and mesoscopic features of the systems. It was shown that both the swelling of the lattice parameter and the mesoscopic domains is correlated to the bulk water concentration in the water rods.
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Affiliation(s)
- Dima Libster
- Casali Institute of Applied Chemistry, The Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
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75
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Konishi M, Morita T, Fukuoka T, Imura T, Kakugawa K, Kitamoto D. Efficient production of mannosylerythritol lipids with high hydrophilicity by Pseudozyma hubeiensis KM-59. Appl Microbiol Biotechnol 2008; 78:37-46. [DOI: 10.1007/s00253-007-1292-2] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2007] [Revised: 11/15/2007] [Accepted: 11/17/2007] [Indexed: 10/22/2022]
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76
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A basidiomycetous yeast, Pseudozyma tsukubaensis, efficiently produces a novel glycolipid biosurfactant. The identification of a new diastereomer of mannosylerythritol lipid-B. Carbohydr Res 2008; 343:555-60. [DOI: 10.1016/j.carres.2007.11.023] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2007] [Revised: 11/12/2007] [Accepted: 11/25/2007] [Indexed: 11/19/2022]
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77
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Worakitkanchanakul W, Imura T, Morita T, Fukuoka T, Sakai H, Abe M, Rujiravanit R, Chavadej S, Kitamoto D. Formation of W/O Microemulsion Based on Natural Glycolipid Biosurfactant, Mannosylerythritol Lipid-A. J Oleo Sci 2008; 57:55-9. [DOI: 10.5650/jos.57.55] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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78
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Amar-Yuli I, Wachtel E, Shalev DE, Moshe H, Aserin A, Garti N. Thermally Induced Fluid Reversed Hexagonal (HII) Mesophase. J Phys Chem B 2007; 111:13544-53. [DOI: 10.1021/jp076662t] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Idit Amar-Yuli
- Casali Institute of Applied Chemistry, The Institute of Chemistry, and Wolfson Centre for Applied Structural Biology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel, and Faculty of Chemistry, The Weizmann Institute of Science, Rehovot 76100, Israel
| | - Ellen Wachtel
- Casali Institute of Applied Chemistry, The Institute of Chemistry, and Wolfson Centre for Applied Structural Biology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel, and Faculty of Chemistry, The Weizmann Institute of Science, Rehovot 76100, Israel
| | - Deborah E. Shalev
- Casali Institute of Applied Chemistry, The Institute of Chemistry, and Wolfson Centre for Applied Structural Biology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel, and Faculty of Chemistry, The Weizmann Institute of Science, Rehovot 76100, Israel
| | - Hagai Moshe
- Casali Institute of Applied Chemistry, The Institute of Chemistry, and Wolfson Centre for Applied Structural Biology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel, and Faculty of Chemistry, The Weizmann Institute of Science, Rehovot 76100, Israel
| | - Abraham Aserin
- Casali Institute of Applied Chemistry, The Institute of Chemistry, and Wolfson Centre for Applied Structural Biology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel, and Faculty of Chemistry, The Weizmann Institute of Science, Rehovot 76100, Israel
| | - Nissim Garti
- Casali Institute of Applied Chemistry, The Institute of Chemistry, and Wolfson Centre for Applied Structural Biology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel, and Faculty of Chemistry, The Weizmann Institute of Science, Rehovot 76100, Israel
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79
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Engström S, Wadsten-Hindrichsen P, Hernius B. Cubic, sponge, and lamellar phases in the glyceryl monooleyl ether-propylene glycol-water system. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2007; 23:10020-5. [PMID: 17760467 DOI: 10.1021/la701217b] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
The phase behavior of 1-glyceryl monooleyl ether (GME) in mixtures of propylene glycol (PG) and water was investigated by visual inspection, polarization microscopy, small-angle X-ray diffraction, and conductance measurements. A phase diagram, based on over 200 samples of the ternary system GME-PG-water, was constructed at 20 degrees C. Without PG, GME forms a reverse micellar phase with up to 10 wt % water and a reverse hexagonal liquid-crystalline phase between 10 and 25 wt % water, a phase that can coexist with excess water. If PG is added in amounts exceeding about 10 wt %, then cubic and lamellar liquid-crystalline phases start to form. A cubic phase, belonging to space group Pn3m, can coexist with excess PG-water mixtures. If even more PG is added, then the cubic phase is transformed into a sponge phase. A lamellar phase forms at water contents between 10 and 15 wt % and with widely differing PG/GME weight ratios. We postulate that the phase behavior is caused by the fact that PG makes the interfacial region between self-assembled GME and PG-water less negatively curved, which in turn allows for the formation of the new phases. The phase behavior obtained for the GME system shows a striking similarity with the phase behavior of the corresponding system in which the GME has been replaced by the ester, 1-glycerol monooleate (GMO), differing only in one extra carbonyl oxygen. The major difference is the lower amount of water present in the GME phases, an effect that is mainly due to the more hydrophobic character of GME compared to that of GMO.
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Affiliation(s)
- Sven Engström
- Pharmacutical Technology, Department of Chemical and Biological Engineering, Chalmers University of Technology, SE-412 96 Göteborg, Sweden.
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80
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Fukuoka T, Morita T, Konishi M, Imura T, Sakai H, Kitamoto D. Structural characterization and surface-active properties of a new glycolipid biosurfactant, mono-acylated mannosylerythritol lipid, produced from glucose by Pseudozyma antarctica. Appl Microbiol Biotechnol 2007; 76:801-10. [PMID: 17607573 DOI: 10.1007/s00253-007-1051-4] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2007] [Revised: 05/09/2007] [Accepted: 05/21/2007] [Indexed: 11/28/2022]
Abstract
Mannosylerythritol lipids (MELs), which are glycolipid biosurfactants produced by Pseudozyma yeasts, show not only excellent interfacial properties but also versatile biochemical actions. In the course of MEL production from glucose as the sole carbon source, P. antarctica was found to produce unknown glycolipids more hydrophilic than conventional "di-acylated MELs," which have two fatty acyl esters on the mannose moiety. Based on a detailed characterization, the most hydrophilic one was identified as 4-O-(3'-O-alka(e)noyl-beta-D: -mannopyranosyl)-D: -erythritol namely, "mono-acylated MEL." The mono-acylated MEL reduced the surface tension of water to 33.8 mN/m at a critical micelle concentration (CMC) of 3.6 x 10(-4) M, and its hydrophilic-lipophilic balance was tentatively calculated to be 12.15. The observed CMC was 100-fold higher than that of the MELs hitherto reported. Interestingly, of the yeast strains of the genus Pseudozyma, only P. antarctica and P. parantarctica gave the mono-acylated MEL from glucose, despite a great diversity of di-acylated MEL producers in the genus. These strains produced MELs including the mono-acylated one at a rate of 20-25%. From these results, the new MEL is likely to have great potential for use in oil-in-water-type emulsifiers and washing detergents because of its higher water solubility compared to conventional MELs and will thus contribute to facilitating a broad range of applications for the environmentally advanced surfactants.
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Affiliation(s)
- Tokuma Fukuoka
- Research Institute for Innovation in Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5-2, 1-1-1, Higashi, Tsukuba, Ibaraki, 305-8565, Japan
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81
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Konishi M, Morita T, Fukuoka T, Imura T, Kakugawa K, Kitamoto D. Production of different types of mannosylerythritol lipids as biosurfactants by the newly isolated yeast strains belonging to the genus Pseudozyma. Appl Microbiol Biotechnol 2007; 75:521-31. [PMID: 17505770 DOI: 10.1007/s00253-007-0853-8] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2006] [Revised: 01/18/2007] [Accepted: 01/21/2007] [Indexed: 10/23/2022]
Abstract
Mannosylerythritol lipids (MEL), which are abundantly secreted by yeasts, are one of the most promising biosurfactants known. To obtain various types of MEL and to attain a broad range of applications for them, screening of novel producers was undertaken. Thirteen strains of yeasts were successfully isolated as potential MEL producers; they showed high production yields of MEL of around 20 g l(-1) from 40 g l(-1) of soybean oil. Based on the taxonomical study, all the strains were classified to be the genus Pseudozyma. It is interesting to note that they were categorized into three groups according to their production patterns of MEL. The first group, which included 11 strains taxonomically closely related to high-level MEL producers such as Pseudozyma antarctica and Pseudozyma aphidis, mainly produced 4-O-[(4',6'-di-O-acetyl-2',3'-di-O-alkanoyl)-beta-D-mannopyranosyl]-meso-erythritol (MEL-A) together with 4-O-[(6'-mono-O-acetyl-2',3'-di-O-alkanoyl)-beta-D-mannopyranosyl]-meso-erythritol (MEL-B) and 4-O-[(4'-mono-O-acetyl-2',3'-di-O-alkanoyl)-beta-D-mannopyranosyl]-meso-erythritol (MEL-C) as the minor components. The second group of one strain, which was related to Pseudozyma tsukubaensis, predominantly produced MEL-B. The third group of one strain, which was closely related to Pseudozyma hubeiensis, mainly produced MEL-C; this is the first observation of the efficient production of MEL-C from soybean oil. Moreover, the major fatty acids of the obtained MEL-C were C(6), C(12), and C(16) acids, and were considerably different from those of the other MEL hitherto reported. The biosynthetic manner for MEL is thus likely to significantly vary among the Pseudozyma strains; the newly isolated strains would enable us to attain a large-scale production of MEL and to obtain various types of MEL with different hydrophobic structures.
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Affiliation(s)
- Masaaki Konishi
- Research Institute for Innovation in Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki, 305-8565, Japan
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82
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Fukuoka T, Morita T, Konishi M, Imura T, Kitamoto D. Characterization of New Types of Mannosylerythritol Lipids as Biosurfactants Produced from Soybean Oil by a Basidiomycetous Yeast, Pseudozyma shanxiensis. J Oleo Sci 2007; 56:435-42. [PMID: 17898510 DOI: 10.5650/jos.56.435] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Mannosylerythritol lipids (MELs) are glycolipid biosurfactants produced by the yeast strains of the genus Pseudozyma. These show not only the excellent surface-active properties but also versatile biochemical actions. In course of MEL production from soybean oil by P. shanxiensis, new extracellular glycolipids (more hydrophilic than the previously reported MELs) were found in the culture medium. As a result of the structural characterization, the glycolipids were identified as a mixture of 4-O-[(2', 4'-di-O-acetyl-3'-O-alka(e)noyl)-beta-D-mannopyranosyl]-D-erythritol and 4-O-[(4'-O-acetyl-3'-O-alka(e)noyl-2'-O-butanoyl)-beta-D-mannopyranosyl]-D-erythritol. Interestingly, the new MELs possessed a much shorter chain (C(2) or C(4)) at the C-2' position of the mannose moiety compared to the MELs hitherto reported, which mainly possess a medium-chain acid (C(10)) at the position. They would thus show higher hydrophilicity and/or water-solubility, and expand the development of the environmentally advanced yeast biosurfactants.
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Affiliation(s)
- Tokuma Fukuoka
- Research Institute for Innovation in Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba Central, Tsukuba, Ibaraki, Japan
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