1
|
Sahyoun AM, Wong Min M, Xu K, George S, Karboune S. Characterization of levans produced by levansucrases from Bacillus amyloliquefaciens and Gluconobacter oxydans: Structural, techno-functional, and anti-inflammatory properties. Carbohydr Polym 2024; 323:121332. [PMID: 37940238 DOI: 10.1016/j.carbpol.2023.121332] [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: 03/27/2023] [Revised: 08/09/2023] [Accepted: 08/23/2023] [Indexed: 11/10/2023]
Abstract
Levans of different structures and molecular weights (MW) can display various techno-functional and health-promoting properties. In the present study, selected levans were produced by the transfructosylation of sucrose catalyzed by levansucrases from Bacillus amyloliquefaciens and Gluconobacter oxydans, and their structural, techno-functional and anti-inflammatory properties were investigated. NMR and methylation/GC analysis confirmed the structure of β-(2, 6) levans. The structural characterization led to the classification of levans as high MW (HMW, ≥100 kDa), low MW (LMW, ≤20 kDa) and mix L/HMW ones. Levan with higher MW had more linear fructosyl units with fewer reducing ends and branching residues. LMW levan showed the highest foaming capacity and stability while HMW levan had the highest emulsion stability. HMW and mix L/HMW levans showed comparable water and oil-holding capacities, which were higher than LMW. HMW and mix L/HMW levans were found to have gelling properties at low concentrations. The rheological behaviour of HMW levan-based gel was a more viscous-like gel, while that of mix L/HMW levan-based one showed more elastic solid like-gel. The temperature also influenced the rheology of levan, showing that the mix L/HMW levan gel network was the most thermal stable as its viscoelasticity remained constant at the highest temperature (75 °C). Studies on the biological activity of levans of HMW and LMW revealed in-vitro anti-inflammatory properties as they significantly reduced the production of LPS-triggered pro-inflammatory cytokines in differentiated Caco-2 cells.
Collapse
Affiliation(s)
- Amal M Sahyoun
- Department of Food Science & Agricultural Chemistry, McGill University, Ste-Anne-de-Bellevue, Canada
| | - Muriel Wong Min
- Department of Food Science & Agricultural Chemistry, McGill University, Ste-Anne-de-Bellevue, Canada
| | - Ke Xu
- Department of Food Science & Agricultural Chemistry, McGill University, Ste-Anne-de-Bellevue, Canada
| | - Saji George
- Department of Food Science & Agricultural Chemistry, McGill University, Ste-Anne-de-Bellevue, Canada
| | - Salwa Karboune
- Department of Food Science & Agricultural Chemistry, McGill University, Ste-Anne-de-Bellevue, Canada.
| |
Collapse
|
2
|
Yuan X, Gao X, Zheng T, Wang J, Dong Y, Xue H. Carbon nanomaterial-treated cell cultures of Nostoc flagelliforme produce exopolysaccharides with ameliorative physio-chemical properties. Int J Biol Macromol 2023; 227:726-735. [PMID: 36565826 DOI: 10.1016/j.ijbiomac.2022.12.209] [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: 10/03/2022] [Revised: 12/15/2022] [Accepted: 12/18/2022] [Indexed: 12/24/2022]
Abstract
The feasibility and efficiency of carbon nanomaterials (CNMs) in algal biotechnology are less known. In this study, the influences of four CNMs, graphene (G), graphene oxide (GO), multiwalled carbon nanotube (MWCNT), and aminated multiwalled carbon nanotube (MWCNT-NH2), on cell growth and exopolysaccharide (EPS) production, as well as the physiochemical properties of EPS, were investigated in cell culture of Nostoc flagelliforme. A proper concentration (15 mg L-1) of four CNMs was chosen for use after a preliminary test. Upon GO treatment, the biomass was improved by 11.1 % and the EPS production was increased by 36.1 % on day 16 compared to the nontreated control. Four CNM treatments significantly improved cellular O2·- and H2O2 levels as well as superoxide dismutase and catalase activities. The monosaccharide compositions and functional groups of the EPSs were obviously altered by the CNM treatments. Particularly, the GO treatment-resulting EPS showed obviously improved flocculating ability, water absorption ability, and reactive oxygen species scavenging ability. In general, four CNMs exerted distinct influences on the production and physio-chemical property alteration of the EPS in N. flagelliforme culture. This work expands our understanding of the application of CNMs in the induced production and functional modification of polysaccharides during algal cultivation.
Collapse
Affiliation(s)
- Xiaolong Yuan
- School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi'an 710021, Shaanxi Province, China
| | - Xiang Gao
- School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi'an 710021, Shaanxi Province, China.
| | - Tao Zheng
- School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi'an 710021, Shaanxi Province, China
| | - Jing Wang
- School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi'an 710021, Shaanxi Province, China
| | - Yibei Dong
- School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi'an 710021, Shaanxi Province, China
| | - Huidan Xue
- School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi'an 710021, Shaanxi Province, China
| |
Collapse
|
3
|
Bora AFM, Kouame KJEP, Li X, Liu L, Sun Y, Ma Q, Liu Y. Development, characterization and probiotic encapsulating ability of novel Momordica charantia bioactive polysaccharides/whey protein isolate composite gels. Int J Biol Macromol 2023; 225:454-466. [PMID: 36410535 DOI: 10.1016/j.ijbiomac.2022.11.097] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 11/06/2022] [Accepted: 11/10/2022] [Indexed: 11/22/2022]
Abstract
In this study, a polysaccharide (MP1) with a molecular weight of 38 kDa was isolated from Momordica charantia which contains arabinose, galactose, xylose, and rhamnose. (MP1) was used to formulate composite gels with Whey Protein Isolate (WPI) that were characterized for their functional properties, microstructure, thermal resistance, probiotic encapsulating ability, and potential toward metabolic syndrome (MS). Results showed that the highest complex index was obtained at MP concentration of 2 %. MP-WPIs demonstrated superior (p < 0.05) water holding capacity and emulsifying properties than WPI gels. MP-WPIs also had higher (p < 0.05) thermal stability via TGA and DSC analysis. MP-WPI morphology was observed via SEM whereas protein structure as affected by MP concentration was studied using CLSM. Also, FTIR revealed that MP and WPI bonded mainly through electrostatic, hydrophobic and hydrogen interactions. More, MP-WPIs successfully enhanced probiotic Lactobacillus acidophilus (LA) survival upon freeze-drying with high encapsulation efficiency (98 %) and improved storage stability. MP-WPIs improved LA survival upon digestion suggesting a potential prebiotic activity. Finally, synbiotic formulation LA-MP-WPIs exhibited effective biological activity against MS. Therefore, MP-WPIs is a propitious strategy for effective probiotic gastrointestinal delivery with potential toward MS.
Collapse
Affiliation(s)
- Awa Fanny Massounga Bora
- Food College, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang Dist, 150030, Harbin, China; Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang Dist, 150030, Harbin, China
| | - Kouadio Jean Eric-Parfait Kouame
- Food College, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang Dist, 150030, Harbin, China; Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang Dist, 150030, Harbin, China
| | - Xiaodong Li
- Food College, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang Dist, 150030, Harbin, China; Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang Dist, 150030, Harbin, China.
| | - Lu Liu
- Food College, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang Dist, 150030, Harbin, China; Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang Dist, 150030, Harbin, China
| | - Yue Sun
- Food College, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang Dist, 150030, Harbin, China; Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang Dist, 150030, Harbin, China
| | - Qian Ma
- Food College, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang Dist, 150030, Harbin, China; Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang Dist, 150030, Harbin, China
| | - Yibo Liu
- Food College, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang Dist, 150030, Harbin, China; Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang Dist, 150030, Harbin, China
| |
Collapse
|
4
|
Liu ST, Wang S, Han N, Li MY, Li J, Li YR, Jia SR, Han PP. Effects of H2O2 acclimation on the growth, polysaccharide production and tolerance performance of Nostoc flagelliforme. ALGAL RES 2023. [DOI: 10.1016/j.algal.2023.102968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
5
|
Lucena MDA, Ramos IFDS, Geronço MS, de Araújo R, da Silva Filho FL, da Silva LMLR, de Sousa RWR, Ferreira PMP, Osajima JA, Silva-Filho EC, Rizzo MDS, Ribeiro AB, da Costa MP. Biopolymer from Water Kefir as a Potential Clean-Label Ingredient for Health Applications: Evaluation of New Properties. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27123895. [PMID: 35745016 PMCID: PMC9231297 DOI: 10.3390/molecules27123895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 06/14/2022] [Accepted: 06/15/2022] [Indexed: 11/23/2022]
Abstract
The present work aimed to characterize the exopolysaccharide obtained from water kefir grains (EPSwk), a symbiotic association of probiotic microorganisms. New findings of the technological, mechanical, and biological properties of the sample were studied. The EPSwk polymer presented an Mw of 6.35 × 105 Da. The biopolymer also showed microcrystalline structure and characteristic thermal stability with maximum thermal degradation at 250 °C. The analysis of the monosaccharides of the EPSwk by gas chromatography demonstrated that the material is composed of glucose units (98 mol%). Additionally, EPSwk exhibited excellent emulsifying properties, film-forming ability, a low photodegradation rate (3.8%), and good mucoadhesive properties (adhesion Fmax of 1.065 N). EPSwk presented cytocompatibility and antibacterial activity against Escherichia coli and Staphylococcus aureus. The results of this study expand the potential application of the exopolysaccharide from water kefir as a potential clean-label raw material for pharmaceutical, biomedical, and cosmetic applications.
Collapse
Affiliation(s)
- Monalisa de Alencar Lucena
- Materials Science and Engineering Graduate Program, Federal University of Piauí, Teresina 64049-550, PI, Brazil; (M.d.A.L.); (I.F.d.S.R.); (M.S.G.); (R.d.A.); (J.A.O.); (E.C.S.-F.); (M.P.d.C.)
| | - Igor Frederico da Silveira Ramos
- Materials Science and Engineering Graduate Program, Federal University of Piauí, Teresina 64049-550, PI, Brazil; (M.d.A.L.); (I.F.d.S.R.); (M.S.G.); (R.d.A.); (J.A.O.); (E.C.S.-F.); (M.P.d.C.)
| | - Maurycyo Silva Geronço
- Materials Science and Engineering Graduate Program, Federal University of Piauí, Teresina 64049-550, PI, Brazil; (M.d.A.L.); (I.F.d.S.R.); (M.S.G.); (R.d.A.); (J.A.O.); (E.C.S.-F.); (M.P.d.C.)
| | - Ricardo de Araújo
- Materials Science and Engineering Graduate Program, Federal University of Piauí, Teresina 64049-550, PI, Brazil; (M.d.A.L.); (I.F.d.S.R.); (M.S.G.); (R.d.A.); (J.A.O.); (E.C.S.-F.); (M.P.d.C.)
| | | | - Luís Manuel Lopes Rodrigues da Silva
- CPIRN-UDI/IPG—Centro de Potencial e Inovação em Recursos Naturais, Unidade de Investigação para o Desenvolvimento do Interior do Instituto Politécnico da Guarda, 6300-559 Guarda, Portugal;
| | - Rayran Walter Ramos de Sousa
- Laboratory of Experimental Cancerology (LabCancer), Department of Biophysics and Physiology, Federal University of Piauí, Teresina 64049-550, PI, Brazil; (R.W.R.d.S.); (P.M.P.F.)
- Pharmaceutical Sciences Graduate Program, Federal University of Piauí, Teresina 64049-550, PI, Brazil;
| | - Paulo Michel Pinheiro Ferreira
- Laboratory of Experimental Cancerology (LabCancer), Department of Biophysics and Physiology, Federal University of Piauí, Teresina 64049-550, PI, Brazil; (R.W.R.d.S.); (P.M.P.F.)
- Pharmaceutical Sciences Graduate Program, Federal University of Piauí, Teresina 64049-550, PI, Brazil;
| | - Josy Anteveli Osajima
- Materials Science and Engineering Graduate Program, Federal University of Piauí, Teresina 64049-550, PI, Brazil; (M.d.A.L.); (I.F.d.S.R.); (M.S.G.); (R.d.A.); (J.A.O.); (E.C.S.-F.); (M.P.d.C.)
| | - Edson Cavalcanti Silva-Filho
- Materials Science and Engineering Graduate Program, Federal University of Piauí, Teresina 64049-550, PI, Brazil; (M.d.A.L.); (I.F.d.S.R.); (M.S.G.); (R.d.A.); (J.A.O.); (E.C.S.-F.); (M.P.d.C.)
| | - Márcia dos Santos Rizzo
- Pharmaceutical Sciences Graduate Program, Federal University of Piauí, Teresina 64049-550, PI, Brazil;
| | - Alessandra Braga Ribeiro
- CBQF—Centro de Biotecnologia e Química Fina—Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
- Correspondence:
| | - Marcilia Pinheiro da Costa
- Materials Science and Engineering Graduate Program, Federal University of Piauí, Teresina 64049-550, PI, Brazil; (M.d.A.L.); (I.F.d.S.R.); (M.S.G.); (R.d.A.); (J.A.O.); (E.C.S.-F.); (M.P.d.C.)
- College of Pharmacy, Federal University of Piauí, Teresina 64049-550, PI, Brazil;
- Pharmaceutical Sciences Graduate Program, Federal University of Piauí, Teresina 64049-550, PI, Brazil;
| |
Collapse
|
6
|
Song HY, Kim KI, Han JM, Park WY, Seo HS, Lim S, Byun EB. Ionizing radiation technology to improve the physicochemical and biological properties of natural compounds by molecular modification: A review. Radiat Phys Chem Oxf Engl 1993 2022. [DOI: 10.1016/j.radphyschem.2022.110013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
|
7
|
Ben Slima S, Ktari N, chouikhi A, Trabelsi I, Hzami A, Taktak MA, Msaddak L, Ben Salah R. Antioxidant activities, functional properties, and application of a novel Lepidium sativum polysaccharide in the formulation of cake. Food Sci Nutr 2022; 10:822-832. [PMID: 35311160 PMCID: PMC8907738 DOI: 10.1002/fsn3.2713] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 12/13/2021] [Accepted: 12/17/2021] [Indexed: 11/11/2022] Open
Abstract
A novel heteropolysaccharide, named cress water soluble polysaccharide (CWSP), was purified from Lepidium sativum seeds. Antioxidant activities and functional properties were characterized thermally using thermal gravimetric analysis (TGA), and the differential scanning calorimeter (DSC) results of CWSP were evaluated. The total antioxidant capacity and the metal chelating activities of CWSP at 3 mg/ml were equivalent to 116.34 µg ascorbic acid and 62.57%, respectively. As for the CWSP that was used for the production of cakes, it was thermally stable, and it presented high water (WHC) and oil holding (OHC) capacities and good emulsion properties. The samples were prepared with different levels of CWSP (0.1. 0.3, and 0.5%) and analyzed during 15 days of storage at room temperature. The obtained results indicated that the addition of CWSP had a significant effect on the texture profile, leading to the increase in all parameters in terms of hardness, springiness, cohesiveness, adhesiveness, and chewiness. Moreover, the reformulation samples presented higher a* and lower L* and b* than the control sample. The sensory evaluation showed that the formulation of cake with 0.3% of CWSP was the most acceptable. Therefore, CWSP was shown to be a new alternative for improving the quality attributes, indicating potent antioxidant activities on the shelf life during the storage of bakery foods.
Collapse
Affiliation(s)
- Sirine Ben Slima
- Laboratory of Biotechnology Microbial Enzymatic and Biomolecules (LBMEB)Center of Biotechnology of SfaxSfaxTunisia
| | - Naourez Ktari
- Laboratory of Enzyme Engineering and MicrobiologyNational School of Engineering of Sfax (ENIS)SfaxTunisia
- Department of Life SciencesFaculty of Science of GabesGabesTunisia
| | - Aicha chouikhi
- Laboratory of Biotechnology Microbial Enzymatic and Biomolecules (LBMEB)Center of Biotechnology of SfaxSfaxTunisia
| | - Imen Trabelsi
- Laboratory of Biotechnology Microbial Enzymatic and Biomolecules (LBMEB)Center of Biotechnology of SfaxSfaxTunisia
| | - Amina Hzami
- Laboratory of Biotechnology Microbial Enzymatic and Biomolecules (LBMEB)Center of Biotechnology of SfaxSfaxTunisia
| | | | | | - Riadh Ben Salah
- Laboratory of Biotechnology Microbial Enzymatic and Biomolecules (LBMEB)Center of Biotechnology of SfaxSfaxTunisia
| |
Collapse
|
8
|
Nostoc flagelliforme capsular polysaccharides from different culture conditions improve hyperlipidemia and regulate intestinal flora in C57BL/6J mice to varying degrees. Int J Biol Macromol 2022; 202:224-233. [PMID: 35038468 DOI: 10.1016/j.ijbiomac.2022.01.034] [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: 10/11/2021] [Revised: 12/22/2021] [Accepted: 01/06/2022] [Indexed: 11/23/2022]
Abstract
Two capsular polysaccharides (WL-CPS-1 and GLU-CPS-1) purified from Nostoc flagelliforme under normal and mixotrophic culture conditions were used to investigate the hypolipidemic activity and effect on intestinal flora in C57BL/6J mice respectively. Their molecular weight and monosaccharide composition have been determined in previous studies. They both improved the lipid level by affecting the expression of lipid metabolism genes. They down-regulated the TNF-α and IL-1β levels in serum and up-regulated the activity of antioxidant enzymes in liver thus decreased the atherosclerosis index and MDA content. They up-regulated the short chain fatty acids (SCFAs) synthesis. They decreased the abundance of pathogenic bacteria and increased the abundance of probiotics positively correlated with SCFAs. Compared with WL-CPS-1, GLU-CPS-1 exhibited higher in vivo activity and enriched Odoribacter and Alloprevotella correlating with the gene expression of lipid metabolism, suggesting that the bioactivity of polysaccharides could be regulated by culture conditions. These findings contributed to application of N. flagelliforme polysaccharides with higher activity in hypolipidemia by adjusting culture conditions.
Collapse
|
9
|
Roychowdhury R, Srivastava N, Kumari S, Pinnaka AK, Roy Choudhury A. Isolation of an exopolysaccharide from a novel marine bacterium Neorhizobium urealyticum sp. nov. and its utilization in nanoemulsion formation for encapsulation and stabilization of astaxanthin. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.112105] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
10
|
Lobo RE, Figueroa T, Navarro D, Gómez MI, Font de Valdez G, Torino MI. Techno-functional properties of HoPS from lactic acid bacteria of different origins as potential food additives. Food Chem 2021; 356:129627. [PMID: 33839531 DOI: 10.1016/j.foodchem.2021.129627] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 03/05/2021] [Accepted: 03/13/2021] [Indexed: 12/14/2022]
Abstract
Homopolysaccharides (HoPS) produced by lactic acid bacteria (LAB) are highly versatile, biocompatible and safe compounds. In this work, six HoPS from different species of Weisella and Leuconostoc were identified as thermally stable dextrans, with endothermic crystalline deformations between 214 and 239 °C. These dextrans proved to have greater solubility and capacities to retain water and oil than similar polymers in other reports. Furthermore, a surface morphology study presented cubic grumps, stratify mesh with irregular grumps, and highly compact filaments. Assays in vitro revealed moderate antioxidant, browning and foaming activities as well as technological properties, such as anti-syneresis, emulsifying and flocculating activities, even at low concentrations. Taking into account bipolymers' microstructure, functionalities and performance in both, aqueous and hydrophobic matrixes, plus their capacity to maintain themselves at elevated temperatures, we consider these HoPS beneficial and natural food additives.
Collapse
Affiliation(s)
- René Emanuel Lobo
- Centro de Referencia para Lactobacilos (CERELA)-CONICET, Batalla de Chacabuco 145, San Miguel de Tucumán 4000, Tucumán, Argentina.
| | - Theo Figueroa
- Ludwig-Maximilians Universität (LMU), Department Biology I - Botanic, Faculty of Biology, LMU Biocenter, Großhaderner Str. 2-4, 82152 Planegg - Martinsried, Munich, Germany.
| | - Diego Navarro
- Departamento de Química Orgánica (CIHIDECAR), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 2, C1428, Buenos Aires, Argentina.
| | - María Inés Gómez
- Instituto de Química Inorgánica, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Batalla de Ayacucho 471, San Miguel de Tucumán 4000 Tucumán, Argentina.
| | - Graciela Font de Valdez
- Centro de Referencia para Lactobacilos (CERELA)-CONICET, Batalla de Chacabuco 145, San Miguel de Tucumán 4000, Tucumán, Argentina.
| | - María Inés Torino
- Centro de Referencia para Lactobacilos (CERELA)-CONICET, Batalla de Chacabuco 145, San Miguel de Tucumán 4000, Tucumán, Argentina.
| |
Collapse
|
11
|
Efficient extraction, antioxidant activities and anti-inflammation of polysaccharides from Notopterygium franchetii Boiss. Carbohydr Polym 2020; 248:116783. [DOI: 10.1016/j.carbpol.2020.116783] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 06/30/2020] [Accepted: 07/15/2020] [Indexed: 12/28/2022]
|
12
|
Exopolysaccharides from Cyanobacteria: Strategies for Bioprocess Development. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10113763] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Cyanobacteria have the potential to become an industrially sustainable source of functional biopolymers. Their exopolysaccharides (EPS) harbor chemical complexity, which predicts bioactive potential. Although some are reported to excrete conspicuous amounts of polysaccharides, others are still to be discovered. The production of this strain-specific trait can promote carbon neutrality while its intrinsic location can potentially reduce downstream processing costs. To develop an EPS cyanobacterial bioprocess (Cyano-EPS) three steps were explored: the selection of the cyanobacterial host; optimization of production parameters; downstream processing. Studying the production parameters allow us to understand and optimize their response in terms of growth and EPS production though many times it was found divergent. Although the extraction of EPS can be achieved with a certain degree of simplicity, the purification and isolation steps demand experience. In this review, we gathered relevant research on EPS with a focus on bioprocess development. Challenges and strategies to overcome possible drawbacks are highlighted.
Collapse
|
13
|
Gomaa M, Yousef N. Optimization of production and intrinsic viscosity of an exopolysaccharide from a high yielding Virgibacillus salarius BM02: Study of its potential antioxidant, emulsifying properties and application in the mixotrophic cultivation of Spirulina platensis. Int J Biol Macromol 2020; 149:552-561. [DOI: 10.1016/j.ijbiomac.2020.01.289] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Revised: 01/24/2020] [Accepted: 01/28/2020] [Indexed: 01/01/2023]
|