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Tornacı S, Erginer M, Gökalsın B, Aysan A, Çetin M, Sadauki M, Fındıklı N, Genç S, Sesal C, Toksoy Öner E. Investigating the cryoprotective efficacy of fructans in mammalian cell systems via a structure-functional perspective. Carbohydr Polym 2024; 328:121704. [PMID: 38220340 DOI: 10.1016/j.carbpol.2023.121704] [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: 07/28/2023] [Revised: 12/13/2023] [Accepted: 12/14/2023] [Indexed: 01/16/2024]
Abstract
Fructans have long been known with their role in protecting organisms against various stress factors due to their ability to induce controlled dehydration and support membrane stability. Considering the vital importance of such features in cryo-technologies, this study aimed to explore the cryoprotective efficacy of fructans in mammalian cell systems where structurally different fructan polymers were examined on in vitro cell models derived from organs such as the liver, frequently used in transplantation, osteoblast, and cord cells, commonly employed in cell banking, as well as human seminal fluids that are of vital importance in assisted reproductive technology. To gain insights into the fructan/membrane interplay, structural differences were linked to rheological properties as well as to lipid membrane interactions where both fluorescein leakage from unilamellar liposomes and membrane integrity of osteoblast cells were monitored. High survival rates obtained with human endothelial, osteoblast and liver cells for up to two months clearly showed that fructans could be considered as effective non-permeating cryoprotectants, especially for extended periods of cryopreservation. In trials with human seminal fluid, short chained levan in combination with human serum albumin and glycerol proved very effective in preserving semen samples across multiple patients without any morphological abnormalities.
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Affiliation(s)
- Selay Tornacı
- IBSB-Industrial Biotechnology and Systems Biology Research Group, Department of Bioengineering, Marmara University, Istanbul, Turkey
| | - Merve Erginer
- Istanbul University-Cerrahpaşa, Institute of Nanotechnology and Biotechnology, Istanbul, Turkey
| | - Barış Gökalsın
- Marmara University, Department of Biology, Istanbul, Turkey
| | - Arzu Aysan
- Gebze Technical University, Department of Molecular Biology and Genetics, Kocaeli, Turkey
| | - Metin Çetin
- Gebze Technical University, Department of Molecular Biology and Genetics, Kocaeli, Turkey
| | - Mubarak Sadauki
- IBSB-Industrial Biotechnology and Systems Biology Research Group, Department of Bioengineering, Marmara University, Istanbul, Turkey
| | - Necati Fındıklı
- Department of Biomedical Engineering, Beykent University, Istanbul, Turkey; Bahceci Health Group, Istanbul, Turkey
| | - Seval Genç
- Marmara University, Department of Metallurgical & Materials Engineering, Istanbul, Turkey
| | - Cenk Sesal
- Marmara University, Department of Biology, Istanbul, Turkey
| | - Ebru Toksoy Öner
- IBSB-Industrial Biotechnology and Systems Biology Research Group, Department of Bioengineering, Marmara University, Istanbul, Turkey.
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Huang J, Chen Y, Su Y, Yuan W, Peng D, Guan Z, Chen J, Li P, Du B. Identification of carbohydrate in Polygonatum kingianum Coll. et Hemsl and inhibiting oxidative stress. Int J Biol Macromol 2024; 261:129760. [PMID: 38286375 DOI: 10.1016/j.ijbiomac.2024.129760] [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: 11/06/2023] [Revised: 12/17/2023] [Accepted: 01/24/2024] [Indexed: 01/31/2024]
Abstract
The specific structure of Polygonatum kingianum Coll. et Hemsl polysaccharide (PKP) has been rarely reported. In this study, an inulin-type fructan PKP-1, was extracted and purified from Polygonatum kingianum Coll. et Hemsl, and its structural characteristics and antioxidants activity were evaluated. The molecular weights of PKP-1 was determined to be 4.802 kDa. Monosaccharide composition analysis evidenced that PKP-1 was composed of galactose, glucose and fructose in a molar ratio of 0.8 %:7.2 %:92.0 %. Glycosidic linkage and Nuclear Magnetic Resonance (NMR) analysis revealed that PKP-1 exhibited a primary sugar residue linkage of →1-β-d-Fruf-2→2,6-β-d-Fruf-1→, where β-d-Fruf-2→ acts as the side chain and links to the C-6 position of →2,6-β-d-Fruf-1→. In vitro antioxidant activity assays demonstrated that PKP-1 enhanced the mitigation of hepatic oxidative stress in HepG2 cells induced by free fatty acids. This effect was marked by increased enzymatic activities of superoxidase dismutase (SOD) and catalase (CAT), along with elevated glutathione (GSH) levels. These findings indicate that PKP-1 could be used as a potential natural antioxidant.
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Affiliation(s)
- Junyuan Huang
- South China Agricultural University, College of Food Science, Guangzhou 510642, China
| | - Yanlan Chen
- South China Agricultural University, College of Food Science, Guangzhou 510642, China
| | - Yi Su
- South China Agricultural University, College of Food Science, Guangzhou 510642, China
| | - Wanqing Yuan
- South China Agricultural University, College of Food Science, Guangzhou 510642, China
| | - Dong Peng
- South China Agricultural University, College of Food Science, Guangzhou 510642, China
| | - Ziwen Guan
- South China Agricultural University, College of Food Science, Guangzhou 510642, China
| | - Jianping Chen
- School of Chinese Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China
| | - Pan Li
- South China Agricultural University, College of Food Science, Guangzhou 510642, China
| | - Bing Du
- South China Agricultural University, College of Food Science, Guangzhou 510642, China.
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Li Z, Wen Q, Pi J, Zhang D, Nie J, Wei W, Li W, Guo DA. An inulin-type fructan isolated from Serratula chinensis alleviated the dextran sulfate sodium-induced colitis in mice through regulation of intestinal barrier and gut microbiota. Carbohydr Polym 2023; 320:121206. [PMID: 37659809 DOI: 10.1016/j.carbpol.2023.121206] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 07/04/2023] [Accepted: 07/14/2023] [Indexed: 09/04/2023]
Abstract
Herein, we aimed to explore the polysaccharide material basis of Serratula chinensis and establish its beneficial effects against colitis. A neutral polysaccharide (SCP) was extracted from S. chinensis in high yield using hot water. The molecular weights were calculated by HPSEC as Mw = 2928 Da, Mn = 2634 Da, and Mw/Mn = 1.11. FT-IR and 1D/2D-NMR spectroscopic analyses confirmed that SCP was an inulin-type fructan with α-D-Glcp-(1 → [1)-β-D-Fruf-(2]17) linkages. Treatment with SCP (200 or 400 mg/kg) alleviated dextran sulfate sodium (DSS)-induced mouse colitis symptoms, including the loss of body weight, increase of disease activity index score, and shortening of colon length. Histopathological and immunofluorescence assessments revealed that SCP could reduce pathological damage to the colon, restore the number of goblet cells, increase the content of glycoproteins in goblet cells and mucins in crypts, and enhance the expression of tight junction proteins ZO-1 and occludin. In addition, metagenomic sequencing revealed that SCP could improve the dysbiosis of gut microbiomes and act on multiple microbial functions. Moreover, SCP treatment increased the content of colonic acetic acid and butanoic acid. Collectively, these results indicated that SCP could alleviate the DSS-induced colitis in mice through regulation of intestinal barrier and gut microbiota.
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Affiliation(s)
- Zhenwei Li
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan 528400, China
| | - Qiuyi Wen
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan 528400, China; College of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, Guangdong 510006, China
| | - Jiaju Pi
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan 528400, China
| | - Daidi Zhang
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan 528400, China
| | - Jinchun Nie
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan 528400, China
| | - Wenlong Wei
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Research Center for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Wei Li
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan 528400, China
| | - De-An Guo
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan 528400, China; Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Research Center for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.
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Petrova A, Ognyanov M, Petkova N, Denev P. Phytochemical Characterization of Purple Coneflower Roots ( Echinacea purpurea (L.) Moench.) and Their Extracts. Molecules 2023; 28:molecules28093956. [PMID: 37175366 PMCID: PMC10180171 DOI: 10.3390/molecules28093956] [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: 03/17/2023] [Revised: 05/03/2023] [Accepted: 05/06/2023] [Indexed: 05/15/2023] Open
Abstract
Echinacea purpurea is a perennial plant that belongs to the Asteraceae family. It has a wide range of applications mainly in the treatment and prevention of inflammations in the respiratory system. The current study aimed to perform a phytochemical characterization of purple coneflower (Echinacea purpurea) roots and their extracts (water, 40%, 50%, 60% ethanol, and 60% glycerol). Phytochemical characterization was carried out by gravimetric, spectrophotometric, and chromatographic methods. Echinacea roots were characterized by a low lipid (0.8%) content. In contrast, carbohydrates (45%) and proteins (20%) occupied a large part of the dry matter. Amongst the extracts, the highest yield was obtained using water as a solvent (53%). Water extract was rich in protein and carbohydrates as fructans (inulin) were the most abundant carbohydrate constituent. The most exhaustive recovery of the phenolic components was conducted by extraction with 40% ethanol and 60% glycerol. It was found that water is the most suitable extractant for obtaining a polysaccharide-containing complex (PSC) (8.87%). PSC was composed mainly of fructans (inulin) and proteins with different molecular weight distributions. The yield of PSC decreased with an increasing ethanol concentration (40% > 50% > 60%) but the lowest yield was obtained from 60% glycerol extract. The obtained results showed that Echinacea roots contained a large amount of biologically active substances-phenolic components and polysaccharides and that glycerol was equally efficient to ethanol in extracting caffeic acid derivatives from purple coneflower roots. The data can be used for the preparation of extracts having different compositions and thus easily be incorporated into commercial products.
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Affiliation(s)
- Ani Petrova
- Laboratory of Biologically Active Substances-Plovdiv, Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 139 Ruski Blvd., 4000 Plovdiv, Bulgaria
| | - Manol Ognyanov
- Laboratory of Biologically Active Substances-Plovdiv, Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 139 Ruski Blvd., 4000 Plovdiv, Bulgaria
| | - Nadezhda Petkova
- Department of Organic Chemistry and Inorganic Chemistry, Technological Faculty, University of Food Technologies, 26 Maritza Blvd., 4002 Plovdiv, Bulgaria
| | - Petko Denev
- Laboratory of Biologically Active Substances-Plovdiv, Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 139 Ruski Blvd., 4000 Plovdiv, Bulgaria
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Wang R, Shan H, Zhang G, Li Q, Wang J, Yan Q, Li E, Diao Y, Wei L. An inulin-type fructan (AMP1-1) from Atractylodes macrocephala with anti-weightlessness bone loss activity. Carbohydr Polym 2022; 294:119742. [DOI: 10.1016/j.carbpol.2022.119742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 06/13/2022] [Accepted: 06/14/2022] [Indexed: 11/02/2022]
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Evdokimova S, Karetkin B, Zhurikov M, Guseva E, Khabibulina N, Shakir I, Panfilov V. Antagonistic activity of synbiotics: Response surface modeling of various factors. FOODS AND RAW MATERIALS 2022. [DOI: 10.21603/2308-4057-2022-2-543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Synbiotic compositions have a great potential for curing microbial intestinal infections. Novel targeted synbiotics are a promising field of the modern functional food industry. The present research assessed the effect of various fructan fractions, initial probiotic counts, and test strains on the antagonistic properties of synbiotics.
The research involved powdered roots of Arctium lappa L. and strains of Bifidobacterium bifidum, Bacillus cereus, and Salmonella enterica. The experiment was based on the central composite rotatable design. A water extract of A. lappa roots was purified and concentrated. Fructan fractions were precipitated at various concentrations of ethanol, dried, and sub jected to carbon-13 nuclear magnetic resonance (13C-NMR) spectrometry. The bifidobacteria and the test strains were co-cultivated in the same medium that contained one of the fractions. Co-cultivation lasted during 10 h under the same conditions. The acid concentrations were determined by high-performance liquid chromatography to define the synbiotic factor.
The obtained fructans were closer to commercial oligofructose in terms of the number and location of NMR peaks. However, they were between oligofructose and inulin in terms of signal intensity. The response surface analysis for bacilli showed that the minimal synbiotic factor value corresponded to the initial probiotic count of 7.69 log(CFU/mL) and the fructan fraction precipitated by 20% ethanol. The metabolites produced by the bacilli also affected their growth. The synbiotic factor response surface for the experiments with Salmonella transformed from parabolic to saddle shape as the initial test strain count increased. The minimal synbiotic factor value corresponded to the lowest precipitant concentration and the highest probiotic count.
The research established a quantitative relationship between the fractional composition of fructans and the antagonistic activity of the synbiotic composition with bifidobacteria. It also revealed how the ratio of probiotic and pathogen counts affects the antagonism. The proposed approach can be extrapolated on other prebiotics and microbial strains in vivo.
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Affiliation(s)
| | - Boris Karetkin
- Dmitry Mendeleev University of Chemical Technology of Russia
| | | | - Elena Guseva
- Dmitry Mendeleev University of Chemical Technology of Russia
| | | | - Irina Shakir
- Dmitry Mendeleev University of Chemical Technology of Russia
| | - Victor Panfilov
- Dmitry Mendeleev University of Chemical Technology of Russia
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Kinetics and Mechanisms of Saccharomyces boulardii Release from Optimized Whey Protein-Agavin-Alginate Beads under Simulated Gastrointestinal Conditions. BIOENGINEERING (BASEL, SWITZERLAND) 2022; 9:bioengineering9090460. [PMID: 36135006 PMCID: PMC9495568 DOI: 10.3390/bioengineering9090460] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 08/27/2022] [Accepted: 09/07/2022] [Indexed: 11/17/2022]
Abstract
Encapsulation is a process in which a base material is encapsulated in a wall material that can protect it against external factors and/or improve its bioavailability. Among the different encapsulation techniques, ionic gelation stands out as being useful for thermolabile compounds. The aim of this work was to encapsulate Saccharomyces boulardii by ionic gelation using agavins (A) and whey protein (WP) as wall materials and to evaluate the morphostructural changes that occur during in vitro gastrointestinal digestion. Encapsulations at different levels of A and WP were analyzed using microscopic, spectroscopic and thermal techniques. Encapsulation efficiency and cell viability were evaluated. S. boulardii encapsulated at 5% A: 3.75% WP (AWB6) showed 88.5% cell survival after the simulated gastrointestinal digestion; the bead showed a significantly different microstructure from the controls. The mixture of A and WP increased in the survival of S. boulardii respect to those encapsulated with alginate, A or WP alone. The binary material mixture simultaneously allowed a controlled release of S. boulardii by mostly diffusive Fickian mechanisms and swelling. The cell-release time was found to control the increment of the Damköhler number when A and WP were substrates for S. boulardii, in this way allowing greater protection against gastrointestinal conditions.
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Mendonça CMN, Oliveira RC, Freire RKB, Piazentin ACM, Pereira WA, Gudiña EJ, Evtuguin DV, Converti A, Santos JHPM, Nunes C, Rodrigues LR, Oliveira RPS. Characterization of levan produced by a Paenibacillus sp. isolated from Brazilian crude oil. Int J Biol Macromol 2021; 186:788-799. [PMID: 34245738 DOI: 10.1016/j.ijbiomac.2021.07.036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 06/04/2021] [Accepted: 07/03/2021] [Indexed: 10/20/2022]
Abstract
A levan-type fructooligosaccharide was produced by a Paenibacillus strain isolated from Brazilian crude oil, the purity of which was 98.5% after precipitation with ethanol and dialysis. Characterization by FTIR, NMR spectroscopy, GC-FID and ESI-MS revealed that it is a mixture of linear β(2 → 6) fructosyl polymers with average degree of polymerization (DP) of 18 and branching ratio of 20. Morphological structure and physicochemical properties were investigated to assess levan microstructure, degradation temperature and thermomechanical features. Thermal Gravimetric Analysis highlighted degradation temperature of 218 °C, Differential Scanning Calorimetry (DSC) glass transition at 81.47 °C, and Dynamic Mechanical Analysis three frequency-dependent transition peaks. These peaks, corresponding to a first thermomechanical transition event at 86.60 °C related to the DSC endothermic event, a second at 170.9 °C and a third at 185.2 °C, were attributed to different glass transition temperatures of oligo and polyfructans with different DP. Levan showed high morphological versatility and technological potential for the food, nutraceutical, and pharmaceutical industries.
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Affiliation(s)
- Carlos M N Mendonça
- Department of Biochemical and Pharmaceutical Technology, University of São Paulo, 05508-000 São Paulo, Brazil; CICECO, Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Rodrigo C Oliveira
- Department of Biochemical and Pharmaceutical Technology, University of São Paulo, 05508-000 São Paulo, Brazil
| | - Rominne K B Freire
- Department of Biochemical and Pharmaceutical Technology, University of São Paulo, 05508-000 São Paulo, Brazil
| | - Anna C M Piazentin
- Department of Biochemical and Pharmaceutical Technology, University of São Paulo, 05508-000 São Paulo, Brazil
| | - Wellison A Pereira
- Department of Biochemical and Pharmaceutical Technology, University of São Paulo, 05508-000 São Paulo, Brazil
| | - Eduardo J Gudiña
- CEB, Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
| | - Dmitry V Evtuguin
- CICECO, Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Attilio Converti
- Department of Civil, Chemical and Environmental Engineering, Pole of Chemical Engineering, University of Genoa, Via Opera Pia 15, 16145 Genoa, Italy
| | - João H P M Santos
- Department of Biochemical and Pharmaceutical Technology, University of São Paulo, 05508-000 São Paulo, Brazil
| | - Cláudia Nunes
- CICECO, Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Lígia R Rodrigues
- CEB, Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
| | - Ricardo P S Oliveira
- Department of Biochemical and Pharmaceutical Technology, University of São Paulo, 05508-000 São Paulo, Brazil.
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Evdokimova SA, Nokhaeva VS, Karetkin BA, Guseva EV, Khabibulina NV, Kornienko MA, Grosheva VD, Menshutina NV, Shakir IV, Panfilov VI. A Study on the Synbiotic Composition of Bifidobacterium bifidum and Fructans from Arctium lappa Roots and Helianthus tuberosus Tubers against Staphylococcus aureus. Microorganisms 2021; 9:930. [PMID: 33926121 PMCID: PMC8146412 DOI: 10.3390/microorganisms9050930] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 04/22/2021] [Accepted: 04/23/2021] [Indexed: 11/16/2022] Open
Abstract
A number of mechanisms have been proposed explaining probiotics and prebiotics benefit human health, in particular, probiotics have a suppression effect on pathogen growth that can be enhanced with the introduction of prebiotics. In vitro models enhanced with computational biology can be useful for selecting a composition with prebiotics from new plant sources with the greatest synergism. Water extracts from burdock root and Jerusalem artichoke tubers were purified by ultrafiltration and activated charcoal and concentrated on a rotary evaporator. Fructans were precipitated with various concentrations of ethanol. Bifidobacterium bifidum 8 VKPM AC-2136 and Staphylococcus aureus ATCC 43300 strains were applied to estimate the synbiotic effect. The growth of bifidobacteria and staphylococci in monocultures and cocultures in broths with glucose, commercial prebiotics, as well as isolated fructans were studied. The minimum inhibitory concentrations (MICs) of lactic and acetic acids for the Staphylococcus strain were determined. A quantitative model joining the formation of organic acids by probiotics as antagonism factors and the MICs of pathogens (as the measure of their inhibition) was tested in cocultures and showed a high predictive value (R2 ≥ 0.86). The synbiotic factor obtained from the model was calculated based on the experimental data and obtained constants. Fructans precipitated with 20% ethanol and Bifidobacterium bifidum have the greater synergism against Staphylococcus.
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Affiliation(s)
- Svetlana A. Evdokimova
- Department of Biotechnology, Faculty of Biotechnology and Industrial Ecology, D. Mendeleev University of Chemical Technology, Miusskaya Sq., 9, 125047 Moscow, Russia; (S.A.E.); (V.S.N.); (N.V.K.); (V.D.G.); (I.V.S.); (V.I.P.)
| | - Vera S. Nokhaeva
- Department of Biotechnology, Faculty of Biotechnology and Industrial Ecology, D. Mendeleev University of Chemical Technology, Miusskaya Sq., 9, 125047 Moscow, Russia; (S.A.E.); (V.S.N.); (N.V.K.); (V.D.G.); (I.V.S.); (V.I.P.)
| | - Boris A. Karetkin
- Department of Biotechnology, Faculty of Biotechnology and Industrial Ecology, D. Mendeleev University of Chemical Technology, Miusskaya Sq., 9, 125047 Moscow, Russia; (S.A.E.); (V.S.N.); (N.V.K.); (V.D.G.); (I.V.S.); (V.I.P.)
| | - Elena V. Guseva
- Department of Cybernetics of Chemical Technological Processes, Faculty of Digital Technologies and Chemical Engineering, D. Mendeleev University of Chemical Technology, Miusskaya Sq., 9, 125047 Moscow, Russia; (E.V.G.); (N.V.M.)
| | - Natalia V. Khabibulina
- Department of Biotechnology, Faculty of Biotechnology and Industrial Ecology, D. Mendeleev University of Chemical Technology, Miusskaya Sq., 9, 125047 Moscow, Russia; (S.A.E.); (V.S.N.); (N.V.K.); (V.D.G.); (I.V.S.); (V.I.P.)
| | - Maria A. Kornienko
- Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, 119435 Moscow, Russia;
| | - Veronika D. Grosheva
- Department of Biotechnology, Faculty of Biotechnology and Industrial Ecology, D. Mendeleev University of Chemical Technology, Miusskaya Sq., 9, 125047 Moscow, Russia; (S.A.E.); (V.S.N.); (N.V.K.); (V.D.G.); (I.V.S.); (V.I.P.)
| | - Natalia V. Menshutina
- Department of Cybernetics of Chemical Technological Processes, Faculty of Digital Technologies and Chemical Engineering, D. Mendeleev University of Chemical Technology, Miusskaya Sq., 9, 125047 Moscow, Russia; (E.V.G.); (N.V.M.)
| | - Irina V. Shakir
- Department of Biotechnology, Faculty of Biotechnology and Industrial Ecology, D. Mendeleev University of Chemical Technology, Miusskaya Sq., 9, 125047 Moscow, Russia; (S.A.E.); (V.S.N.); (N.V.K.); (V.D.G.); (I.V.S.); (V.I.P.)
| | - Victor I. Panfilov
- Department of Biotechnology, Faculty of Biotechnology and Industrial Ecology, D. Mendeleev University of Chemical Technology, Miusskaya Sq., 9, 125047 Moscow, Russia; (S.A.E.); (V.S.N.); (N.V.K.); (V.D.G.); (I.V.S.); (V.I.P.)
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A novel inulin-type fructan from Asparagus cochinchinensis and its beneficial impact on human intestinal microbiota. Carbohydr Polym 2020; 247:116761. [DOI: 10.1016/j.carbpol.2020.116761] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 07/10/2020] [Accepted: 07/10/2020] [Indexed: 12/19/2022]
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11
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Haddar A, Hamed M, Bouallegue A, Bastos R, Coelho E, Coimbra MA. Structural elucidation and interfacial properties of a levan isolated from Bacillus mojavensis. Food Chem 2020; 343:128456. [PMID: 33139122 DOI: 10.1016/j.foodchem.2020.128456] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 09/26/2020] [Accepted: 10/19/2020] [Indexed: 02/06/2023]
Abstract
A strain with high exopolysaccharide (EPS) production was isolated from soil and identified as Bacillus mojavensis based on the 16S rRNA gene sequencing and biochemical properties. The EPS produced simultaneously with the growth phase reached a maximum of 22 g/L after attaining a stationary phase with sucrose used as sole carbon source. B. mojavensis EPS (BM-EPS) was recovered, fractionated by ethanol precipitation and analysed by NMR and methylation analyses. The BM-EPS was found to be composed of (β2 → 6)-Fruf residues, characteristic of a levan, with an average molecular weight of 2.3 MDa. A homogeneous micro-porous and rough structure matrix was observed by SEM of the freeze-dried powdered sample. A concentration-dependent water-soluble nature was observed, with good water (5.3 g/g) and oil (36 g/g) holding capacities. The levan displayed good emulsification activity with excellent stability against food grade oil, thus favoring it as a promising emulsifying agent to food industries.
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Affiliation(s)
- Anissa Haddar
- Laboratory of Plants Improvement and Valorization of Agroressources, National School of Engineering of Sfax (ENIS), University of Sfax, Sfax 3038, Tunisia.
| | - Mariem Hamed
- Laboratory of Plants Improvement and Valorization of Agroressources, National School of Engineering of Sfax (ENIS), University of Sfax, Sfax 3038, Tunisia
| | - Amir Bouallegue
- Common Service Unit of Bioreactor Coupled with an Ultrafilter, National School of Engineering of Sfax (ENIS), University of Sfax, Sfax 3038, Tunisia
| | - Rita Bastos
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Elisabete Coelho
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Manuel A Coimbra
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
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Chaves PFP, Adami ER, Acco A, Iacomini M, Cordeiro LMC. Chemical characterization of polysaccharides from Baccharis trimera (Less.) DC. infusion and its hepatoprotective effects. Food Res Int 2020; 136:109510. [PMID: 32846588 DOI: 10.1016/j.foodres.2020.109510] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 06/25/2020] [Accepted: 06/28/2020] [Indexed: 12/13/2022]
Abstract
Baccharis trimera is a native medicinal plant from South America popularly known as "carqueja". Its infusion is traditionally ingested for the treatment and prevention of hepatic disorders. Up to now, only the crude aqueous extract or hydroethanolic fractions, containing the secondary metabolites, have been studied and correlated with their biological action on the liver. Here we report that an inulin type fructan is present in the B. trimera infusion and contributes to the hepatoprotective effect of the species. In vitro, inulin at 300 μg/mL, was able to scavenger 97% of the DPPH radicals. In vivo experiments showed that it protected the liver against CCl4-induced injuries. The administration of inulin at low dose of 1 mg/kg significantly reduced the blood levels of ALT, AST and ALP, reduced the lipid peroxidation and increased the catalase activity and the levels of reduced glutathione in the liver of CCl4-treated mice. Moreover, the administration of inulin at 100 mg/kg increased GSH levels in the liver of Naïve mice. No signs of toxicity were observed. Thus, inulin present in B. trimera infusion protects the liver from the oxidative stress caused by CCl4 administration and can corroborate with the hepatoprotective effects presented by the species infusion.
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Affiliation(s)
- Pedro Felipe Pereira Chaves
- Biochemistry and Molecular Biology Department, Federal University of Paraná, CP 19.046, CEP 81.531-980 Curitiba, PR, Brazil
| | - Eliana Rezende Adami
- Pharmacology Department, Federal University of Paraná, CEP 81.531-980 Curitiba, PR, Brazil
| | - Alexandra Acco
- Pharmacology Department, Federal University of Paraná, CEP 81.531-980 Curitiba, PR, Brazil
| | - Marcello Iacomini
- Biochemistry and Molecular Biology Department, Federal University of Paraná, CP 19.046, CEP 81.531-980 Curitiba, PR, Brazil
| | - Lucimara Mach Côrtes Cordeiro
- Biochemistry and Molecular Biology Department, Federal University of Paraná, CP 19.046, CEP 81.531-980 Curitiba, PR, Brazil.
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Zhang X, Hu P, Zhang X, Li X. Chemical structure elucidation of an inulin-type fructan isolated from Lobelia chinensis lour with anti-obesity activity on diet-induced mice. Carbohydr Polym 2020; 240:116357. [DOI: 10.1016/j.carbpol.2020.116357] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 04/20/2020] [Accepted: 04/20/2020] [Indexed: 12/28/2022]
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Li J, Wang Y, Zhang X, Cao L, Ji J, Zheng Q, Gao J. Isolation and structural identification of a novel fructan from Radix Codonopsis. J Carbohydr Chem 2020. [DOI: 10.1080/07328303.2020.1772278] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Jiankuan Li
- School of Pharmaceutical Science, Shanxi Medical University, Taiyuan, China
| | - Yan Wang
- School of Pharmaceutical Science, Shanxi Medical University, Taiyuan, China
| | - Xia Zhang
- School of Pharmaceutical Science, Shanxi Medical University, Taiyuan, China
| | - Lingya Cao
- School of Pharmaceutical Science, Shanxi Medical University, Taiyuan, China
- School of Basic Medical Science, Shanxi Medical University, Taiyuan, China
| | - Jiaojiao Ji
- School of Pharmaceutical Science, Shanxi Medical University, Taiyuan, China
| | - Qinghong Zheng
- School of Pharmaceutical Science, Shanxi Medical University, Taiyuan, China
| | - Jianping Gao
- School of Pharmaceutical Science, Shanxi Medical University, Taiyuan, China
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Non thermal plasma in liquid media: Effect on inulin depolymerization and functionalization. Carbohydr Polym 2020; 231:115704. [PMID: 31888804 DOI: 10.1016/j.carbpol.2019.115704] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 11/13/2019] [Accepted: 12/02/2019] [Indexed: 11/23/2022]
Abstract
We report the complete conversion of inulin in gas/liquid media by a dielectric barrier discharge plasma at atmospheric pressure. Depending on the plasma treatment time (from 1 to 30 min) and the chemical nature of the gases (air, oxygen, nitrogen), it was possible to depolymerize inulin into fructo-oligosaccharides with a degree of polymerization under 5 or to achieve a total conversion of inulin into its two monomeric constituents, fructose and glucose in 20 min, without any degradation products. Combined results from liquid chromatography (HPLC), solid state Nuclear Magnetic Resonance (ssNMR) and mass spectroscopy revealed that the breakage of the β 1-4-bridged oxygen occurs by an acidic attack, following the oxidation of the polymer. Infrared spectroscopy revealed the oxidation and breakage of the polymer and also adsorption of nitrate species. Non thermal plasma treatment appears as a promising technology for the efficient production of mono and oligosaccharides from various sources for the added value molecules in food and pharmaceutical application domains.
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Dobrange E, Peshev D, Loedolff B, Van den Ende W. Fructans as Immunomodulatory and Antiviral Agents: The Case of Echinacea. Biomolecules 2019; 9:E615. [PMID: 31623122 PMCID: PMC6843407 DOI: 10.3390/biom9100615] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 10/11/2019] [Accepted: 10/14/2019] [Indexed: 12/19/2022] Open
Abstract
Throughout history, medicinal purposes of plants have been studied, documented, and acknowledged as an integral part of human healthcare systems. The development of modern medicine still relies largely on this historical knowledge of the use and preparation of plants and their extracts. Further research into the human microbiome highlights the interaction between immunomodulatory responses and plant-derived, prebiotic compounds. One such group of compounds includes the inulin-type fructans (ITFs), which may also act as signaling molecules and antioxidants. These multifunctional compounds occur in a small proportion of plants, many of which have recognized medicinal properties. Echinacea is a well-known medicinal plant and products derived from it are sold globally for its cold- and flu-preventative and general health-promoting properties. Despite the well-documented phytochemical profile of Echinacea plants and products, little research has looked into the possible role of ITFs in these products. This review aims to highlight the occurrence of ITFs in Echinacea derived formulations and the potential role they play in immunomodulation.
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Affiliation(s)
- Erin Dobrange
- Laboratory of Molecular Plant Biology, KU Leuven, 3001 Leuven, Belgium.
| | - Darin Peshev
- Laboratory of Molecular Plant Biology, KU Leuven, 3001 Leuven, Belgium.
| | - Bianke Loedolff
- Institute for Plant Biotechnology, Department of Genetics, Faculty of AgriSciences, Stellenbosch University, Matieland 7602, South Africa.
| | - Wim Van den Ende
- Laboratory of Molecular Plant Biology, KU Leuven, 3001 Leuven, Belgium.
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Inulin-Like Fructosan Content in the Below-Ground Organs of Echinacea purpurea and Its Processing Products. Pharm Chem J 2018. [DOI: 10.1007/s11094-018-1871-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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18
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Bruni R, Brighenti V, Caesar LK, Bertelli D, Cech NB, Pellati F. Analytical methods for the study of bioactive compounds from medicinally used Echinacea species. J Pharm Biomed Anal 2018; 160:443-477. [DOI: 10.1016/j.jpba.2018.07.044] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 07/20/2018] [Accepted: 07/21/2018] [Indexed: 12/19/2022]
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19
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Kralj S, Leeflang C, Sierra EI, Kempiński B, Alkan V, Kolkman M. Synthesis of fructooligosaccharides (FosA) and inulin (InuO) by GH68 fructosyltransferases from Bacillus agaradhaerens strain WDG185. Carbohydr Polym 2018; 179:350-359. [DOI: 10.1016/j.carbpol.2017.09.069] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 09/21/2017] [Accepted: 09/22/2017] [Indexed: 10/18/2022]
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Reynoso-Ponce H, Grajales-Lagunes A, Castillo-Andrade A, González-García R, Ruiz-Cabrera MA. Integration of nanofiltration and spray drying processes for enhancing the purity of powdered fructans from Agave salmiana juice. POWDER TECHNOL 2017. [DOI: 10.1016/j.powtec.2017.09.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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21
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Moreno-Vilet L, Bostyn S, Flores-Montaño JL, Camacho-Ruiz RM. Size-exclusion chromatography (HPLC-SEC) technique optimization by simplex method to estimate molecular weight distribution of agave fructans. Food Chem 2017; 237:833-840. [DOI: 10.1016/j.foodchem.2017.06.020] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 06/04/2017] [Accepted: 06/05/2017] [Indexed: 10/19/2022]
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Akbari-Alavijeh S, Soleimanian-Zad S, Sheikh-Zeinoddin M, Hashmi S. Pistachio hull water-soluble polysaccharides as a novel prebiotic agent. Int J Biol Macromol 2017; 107:808-816. [PMID: 28928068 DOI: 10.1016/j.ijbiomac.2017.09.049] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 09/07/2017] [Accepted: 09/15/2017] [Indexed: 12/11/2022]
Abstract
We isolated and characterized pistachio hull polysaccharides (PHP). The PHP was a heteropolysaccharide mainly contained 75.50% (w/w) total sugar and 9.51% (w/w) uronic acid. As determined by GPC analysis, the polysaccharide with a molecular weight of 3.71×106 D (83.2%) was the most dominant fraction. Moreover, HPLC analysis indicated that PHP was predominantly composed of xylose, glucose, arabinose, and fructose with a molar ratio of 1.00:2.50:19.67:28.81. FT-IR and NMR analysis also confirmed the results obtained by HPLC and characterized preliminary structure features of the PHP. Functional properties of the PHP including water holding capacity (WHC: 2.44±0.05g water/g DM), and oil holding capacity (OHC: 11.53±0.04g oil/g DM) were significant compared to inulin used as reference prebiotic (p<0.01). Furthermore, the PHP remained 94.37% undigested in the simulated digestion process and stimulated the growth of L. plantarum PTCC 1896 and L. rhamnosus GG and increased the acetate, propionate and butyrate production over inulin in vitro. Totally, the PHP showed a considerable prebiotic capability and high WHC, OHC suggesting that the PHP is a potent pharmaceutical with good technological properties which can be used in food and drug industries.
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Affiliation(s)
- Safoura Akbari-Alavijeh
- Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology, Isfahan 84156-83111, Iran; Laboratory of Developmental Biology, Center for Vector Biology, Rutgers University,180 Jones Avenue, New Brunswick, NJ 08901, USA
| | - Sabihe Soleimanian-Zad
- Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology, Isfahan 84156-83111, Iran; Research Institute for Biotechnology and Bioengineering, Isfahan University of Technology, Isfahan 84156-83111, Iran.
| | - Mahmoud Sheikh-Zeinoddin
- Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Sarwar Hashmi
- Laboratory of Developmental Biology, Center for Vector Biology, Rutgers University,180 Jones Avenue, New Brunswick, NJ 08901, USA; Rutgers Center for Lipid Research, New Jersey Institute for Food, Nutrition, & Health, Rutgers University, New Brunswick, NJ 08901, USA
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23
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Pontes AGO, Silva KL, Fonseca SGDC, Soares AA, Feitosa JPDA, Braz-Filho R, Romero NR, Bandeira MAM. Identification and determination of the inulin content in the roots of the Northeast Brazilian species Pombalia calceolaria L. Carbohydr Polym 2016; 149:391-8. [DOI: 10.1016/j.carbpol.2016.04.108] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 03/31/2016] [Accepted: 04/24/2016] [Indexed: 11/27/2022]
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24
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Flores-Girón E, Salazar-Montoya JA, Ramos-Ramírez EG. Application of a Box-Behnken design for optimizing the extraction process of agave fructans (Agave tequilana Weber var. Azul). JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2016; 96:3860-3866. [PMID: 26689429 DOI: 10.1002/jsfa.7582] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Revised: 11/12/2015] [Accepted: 12/11/2015] [Indexed: 06/05/2023]
Abstract
BACKGROUND Agave (Agave tequilana Weber var. Azul) is an industrially important crop in México since it is the only raw material appropriate to produce tequila, an alcoholic beverage. Nowadays, however, these plants have also a nutritional interest as a source of functional food ingredients, owing to the prebiotic potential of agave fructans. In this study, a Box-Behnken design was employed to determine the influence of temperature, liquid:solid ratio and time in a maceration process for agave fructan extraction and optimization. RESULTS The developed regression model indicates that the selected study variables were statistical determinants for the extraction yield, and the optimal conditions for maximum extraction were a temperature of 60 °C, a liquid:solid ratio of 10:1 (v/w) and a time of 26.7 min, corresponding to a predicted extraction yield of 37.84%. Through selective separation via precipitation with ethanol, fructans with a degree of polymerization of 29.1 were obtained. CONCLUSION Box-Behnken designs are useful statistical methods for optimizing the extraction process of agave fructans. A mixture of carbohydrates was obtained from agave powder. This optimized method can be used to obtain fructans for use as prebiotics or as raw material for obtaining functional oligosaccharides. © 2015 Society of Chemical Industry.
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Affiliation(s)
- Emmanuel Flores-Girón
- Biotechnology and Bioengineering Department, CINVESTAV-IPN, Av. IPN 2508, Col. San Pedro Zacatenco, C. P. 07360 México, DF
| | - Juan Alfredo Salazar-Montoya
- Biotechnology and Bioengineering Department, CINVESTAV-IPN, Av. IPN 2508, Col. San Pedro Zacatenco, C. P. 07360 México, DF
| | - Emma Gloria Ramos-Ramírez
- Biotechnology and Bioengineering Department, CINVESTAV-IPN, Av. IPN 2508, Col. San Pedro Zacatenco, C. P. 07360 México, DF
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25
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Structural Modifications of Fructans in Aloe barbadensis Miller (Aloe Vera) Grown under Water Stress. PLoS One 2016; 11:e0159819. [PMID: 27454873 PMCID: PMC4959688 DOI: 10.1371/journal.pone.0159819] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Accepted: 07/09/2016] [Indexed: 11/19/2022] Open
Abstract
Aloe barbadensis Miller (Aloe vera) has a Crassulaceae acid metabolism which grants the plant great tolerance to water restrictions. Carbohydrates such as acemannans and fructans are among the molecules responsible for tolerating water deficit in other plant species. Nevertheless, fructans, which are prebiotic compounds, have not been described nor studied in Aloe vera, whose leaf gel is known to possess beneficial pharmaceutical, nutritional and cosmetic properties. As Aloe vera is frequently cultivated in semi-arid conditions, like those found in northern Chile, we investigated the effect of water deficit on fructan composition and structure. For this, plants were subjected to different irrigation regimes of 100%, 75%, 50% and 25% field capacity (FC). There was a significant increase in the total sugars, soluble sugars and oligo and polyfructans in plants subjected to water deficit, compared to the control condition (100% FC) in both leaf tips and bases. The amounts of fructans were also greater in the bases compared to the leaf tips in all water treatments. Fructans also increase in degree of polymerization with increasing water deficit. Glycosidic linkage analyses by GC-MS, led to the conclusion that there are structural differences between the fructans present in the leaves of control plants with respect to plants irrigated with 50% and 25% FC. Therefore, in non-stressed plants, the inulin, neo-inulin and neo-levan type of fructans predominate, while in the most stressful conditions for the plant, Aloe vera also synthesizes fructans with a more branched structure, the neofructans. To our knowledge, the synthesis and the protective role of neo-fructans under extreme water deficit has not been previously reported.
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26
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Structural characterization and anti-tumor effects of an inulin-type fructan from Atractylodes chinensis. Int J Biol Macromol 2015; 82:765-71. [PMID: 26522246 DOI: 10.1016/j.ijbiomac.2015.10.082] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Revised: 10/22/2015] [Accepted: 10/27/2015] [Indexed: 11/23/2022]
Abstract
A fructan (ACPS-1) with a molecular weight of 11.2 kDa was isolated from Atractylodes chinensis rhizome and characterized by chemical derivatization, HPLC, GC-MS, FT-IR, and NMR. Structural analyses revealed that ACPS-1 is predominately composed of fructose and a small amount of glucose and a polymerization degree of about 53. The fructan was deduced to be an inulin-type fructan containing a linear backbone composed of (2→1)-linked β-d-Fruf residues. The in vitro antitumor activity of ACPS-1 was evaluated on four human cancer cell lines, including a cervical cancer cell line (Hela), two liver hepatocellular carcinoma cell lines (HepG2 and 7721), and an ovarian carcinoma cell line (Skov3). Results showed that ACPS-1 could significantly inhibit Hela, HepG2, and 7721 cell proliferation, especially HepG2, for which the fructan showed a proliferative inhibition rate as high as 87.40%. This result suggests that ACPS-1 may have anticancer potentiality against hepatocellular carcinoma and warrants further investigation.
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27
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Alma DOC, Gerardo AM, Gerardo GS, Olga MRQ, Javier LM, Nicolas OSC. Characterization of fructans from Agave durangensis. ACTA ACUST UNITED AC 2015. [DOI: 10.5897/ajps2013.1007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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28
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Lv GP, Hu DJ, Cheong KL, Li ZY, Qing XM, Zhao J, Li SP. Decoding glycome of Astragalus membranaceus based on pressurized liquid extraction, microwave-assisted hydrolysis and chromatographic analysis. J Chromatogr A 2015. [PMID: 26209192 DOI: 10.1016/j.chroma.2015.07.058] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Carbohydrates in herbs are a relatively untapped source of new drugs and health beneficial ingredients. Their analysis has been developed as a novel aspect in quality control and herbal glycomics. In this study, glycome of Astragalus membranaceus was decoded based on optimized pressurized liquid extraction (PLE), microwave-assisted acidic hydrolysis (MAAH) and comprehensive chromatographic approaches. Twelve saccharides including sucrose, galacturonic acid, mannitol, fructose, rhamnose, ribose, arabinose, fucose, xylose, mannose, glucose and galactose were quantitatively analyzed by GC-MS and HPLC-CAD (charged aerosol detectors). Different columns, including Prevail Carbohydrate ES, XBridge Amide and CARBOSep CHO-820 CA for HPLC-CAD analysis, were compared for evaluation of oligosaccharides. The polysaccharides in water extract of Astragalus membranaceus were characterized by high performance size exclusive chromatography (HPSEC) combined with multiple angle light scattering detection (MALSD) and refractive index detection (RID). The results showed that A. membranaceus contained more than 108.5mgg(-1) free sucrose and small amounts of glucose 9.6-26.0mgg(-1) and fructose 8.7-22.9mgg(-1). While its polymeric carbohydrates were composed of glucose 71.0-162.3mgg(-1), galacturonic acid 52.0-113.4mgg(-1), arabinose 22.8-54.4mgg(-1) and small amounts of galactose, rhamnose, xylose and mannose. CARBOSep CHO-820 CA showed its potential in simultaneously analyzing oligosaccharides and uronic acid, especially only the environment-friendly water mobile phase was used. HPSEC-MALSD-RID showed that there were three different molecular weight distributions of polysaccharides in A. membranaceus and the average molecular weight were 21901.1, 2038.5, and 353.4kDa. Hierarchical clustering analysis and principal component analysis demonstrated that A. membranaceus from different regions showed variations both in free and polymeric carbohydrates, which indicated that carbohydrates should be evaluated for the proper quality control of A. membranaceus. Rha, Ara, Xyl, Man and Gal were found to be the main elements for quality evaluation of polymeric carbohydrates in A. membranaceus by factor analysis. The strategy for decoding the glycome based on chromatographic approaches including GC-MS, HPLC-CAD and HPSEC-MALSD-RID after pressurized liquid extraction and microwave-assisted hydrolysis could be applied for carbohydrates profiling in herbs and beneficial for their quality control.
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Affiliation(s)
- G P Lv
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR, China
| | - D J Hu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR, China
| | - K L Cheong
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR, China
| | - Z Y Li
- Modern Research Center for Traditional Chinese Medicine, Shanxi University, Taiyuan, China
| | - X M Qing
- Modern Research Center for Traditional Chinese Medicine, Shanxi University, Taiyuan, China
| | - J Zhao
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR, China.
| | - S P Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR, China.
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29
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Dong CX, Zhang LJ, Xu R, Zhang G, Zhou YB, Han XQ, Zhang Y, Sun YX. Structural characterization and immunostimulating activity of a levan-type fructan from Curcuma kwangsiensis. Int J Biol Macromol 2015; 77:99-104. [DOI: 10.1016/j.ijbiomac.2015.03.009] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Revised: 02/22/2015] [Accepted: 03/09/2015] [Indexed: 11/26/2022]
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30
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Srinameb BO, Nuchadomrong S, Jogloy S, Patanothai A, Srijaranai S. Preparation of Inulin Powder from Jerusalem Artichoke (Helianthus tuberosus L.) Tuber. PLANT FOODS FOR HUMAN NUTRITION (DORDRECHT, NETHERLANDS) 2015; 70:221-226. [PMID: 25804251 DOI: 10.1007/s11130-015-0480-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The complete procedure for the production of inulin powder from Jerusalem artichoke tubers (JAT) was investigated. The procedure consists of isolation of inulin from JAT, elimination of color from the inulin extract and solidification. Washed tubers were first sliced, dried in a 60 °C oven for 10 h and then milled and sieved into a powder. Inulin was isolated from the JAT powder by hot water extraction using an accelerated solvent extractor (ASE). The effects of temperature and time for the extraction were investigated. The highest extraction efficiency was obtained at the extraction temperature of 80 °C for 20 min. The color of the extract was eliminated using ion exchange process with diethylaminoethyl cellulose as the sorbent. The inulin powder was subsequently obtained by freeze drying. Inulin content and inulin profiles were monitored to evaluate the efficiencies of the complete procedure. The inulin content was indirectly determined by spectrophotometry from free and total fructose measurements using potassium iodide. The inulin profile was monitored using high performance anion exchange chromatography equipped with integrated pulse amperometric detection (HPAEC-PAD). The proposed method provided the inulin production yield of 92.5%. The present procedure is fast, simple and effective for production of inulin powder from JAT. In addition, infrared spectra and some physico-chemical properties of the obtained inulin powder were determined and compared with the standard inulin.
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Affiliation(s)
- Bang-orn Srinameb
- Materials Chemistry Research Center, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen, 40002, Thailand
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31
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Lopes SM, Krausová G, Rada V, Gonçalves JE, Gonçalves RA, de Oliveira AJ. Isolation and characterization of inulin with a high degree of polymerization from roots of Stevia rebaudiana (Bert.) Bertoni. Carbohydr Res 2015; 411:15-21. [DOI: 10.1016/j.carres.2015.03.018] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Revised: 03/26/2015] [Accepted: 03/27/2015] [Indexed: 10/23/2022]
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32
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Structural characterization and gastroprotective property of a novel glucofructan from Allium ampeloprasum var. porrum. Carbohydr Res 2014; 402:44-9. [PMID: 25498008 DOI: 10.1016/j.carres.2014.10.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Revised: 10/18/2014] [Accepted: 10/23/2014] [Indexed: 11/23/2022]
Abstract
A new polysaccharide with an estimated weight-average molar mass of 2.6×10(3) was isolated from Allium ampeloprasum var. porrum by hot water extraction, and purified by Sephacryl S-300 HR high-resolution chromatography. It was composed of D-fructose and D-glucose in 10:6 molar ratio, respectively. The structure of the glucofructan was investigated by chemical and spectroscopic methods, including methylation analysis, nuclear magnetic resonance, and electrospray mass spectrometry (ES-MS). The results permitted the structure of the glucofructan to be written as α-D-Glcp-(1→1)-β-D-Fruf-(2→1)-{[α-D-Glcp-(1→6)-β-D-Fruf-(2→6)]-β-D-Fruf-(2→1)}4-β-D-Fruf-(2↔1)-α-D-Glcp. Results of the present study indicated that this new glucofructan exhibited significant gastroprotective property, using in vivo experimental models.
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López M, Huazano-García A, García-Pérez M, García-Vieyra M. Agave Fiber Structure Complexity and Its Impact on Health. POLYSACCHARIDES 2014. [DOI: 10.1201/b17121-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Moreno-Vilet L, Bonnin-Paris J, Bostyn S, Ruiz-Cabrera M, Moscosa-Santillán M. Assessment of sugars separation from a model carbohydrates solution by nanofiltration using a design of experiments (DoE) methodology. Sep Purif Technol 2014. [DOI: 10.1016/j.seppur.2014.04.040] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Ortiz-Cerda IE, Bonnin J, Bostyn S, Ruiz-Cabrera MA, Moscosa-Santillán M. Experimental and CFD Modeling Study of Inulin-Type Fructan Purification from a Model Solution by Diafiltration on a Pilot-Scale Unit. SEP SCI TECHNOL 2014. [DOI: 10.1080/01496395.2014.880929] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Li W, Ji J, Tang W, Rui X, Chen X, Jiang M, Dong M. Characterization of an antiproliferative exopolysaccharide (LHEPS-2) from Lactobacillus helveticus MB2-1. Carbohydr Polym 2014; 105:334-40. [DOI: 10.1016/j.carbpol.2014.01.093] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Revised: 01/24/2014] [Accepted: 01/28/2014] [Indexed: 10/25/2022]
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In vitro assessment of agave fructans (Agave salmiana) as prebiotics and immune system activators. Int J Biol Macromol 2014; 63:181-7. [DOI: 10.1016/j.ijbiomac.2013.10.039] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2013] [Revised: 10/20/2013] [Accepted: 10/26/2013] [Indexed: 01/18/2023]
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Benkeblia N. Fructooligosaccharides and fructans analysis in plants and food crops. J Chromatogr A 2013; 1313:54-61. [DOI: 10.1016/j.chroma.2013.08.013] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Revised: 07/28/2013] [Accepted: 08/03/2013] [Indexed: 12/30/2022]
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Li J, Kim IH. Effects of levan-type fructan supplementation on growth performance, digestibility, blood profile, fecal microbiota, and immune responses after lipopolysaccharide challenge in growing pigs. J Anim Sci 2013; 91:5336-43. [PMID: 24045486 DOI: 10.2527/jas.2013-6665] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
In Exp. 1, 80 growing pigs (27.1±0.7 kg) were used in a 42-d experiment to evaluate the effect of levan-type fructan on growth performance, digestibility, blood profile, and fecal microbiota. Pigs were randomly allocated to 1 of 4 treatments, according to initial BW and gender, with 5 replicate pens per treatment and 2 barrows and 2 gilts per pen. Treatments were corn-soybean meal-based diets supplemented with 0%, 0.05%, 0.10%, or 0.20% levan-type fructan. Average daily gain and G:F increased (quadratic, P<0.05), as dietary levan-type fructan increased from 0 to 0.2%. Similarly, the apparent total tract digestibility of N and GE increased (quadratic, P<0.05), as dietary supplementation of levan-type fructan increased. Dietary levan-type fructan supplementation increased fecal Lactobacillus counts linearly (P<0.05). In Exp. 2, 20 individually housed barrows (26.2±0.6 kg) were used to evaluate immune responses after an Escherichia coli lipopolysaccharide (LPS) challenge. Pigs were fed corn-soybean meal-based diets supplemented with 0% or 0.10% levan-type fructan for 42 d. At d 42, 5 pigs from each treatment were injected with E. coli LPS (0.01% of BW) and the other 5 pigs with sterile saline solution, resulting in a 2×2 factorial arrangement of treatments. Blood was taken 0, 2, 4, 6, and 8 h after challenge. Challenge with LPS decreased blood lymphocyte percentage and had an interactive effect with levan-type fructan inclusion at 4, 6, and 8 h (P<0.01). Levan-type fructan supplementation increased (P<0.05) white blood cells at 6 and 8 h, and increased (P<0.05) lymphocyte percentage at 8 h after the challenge. Lipopolysaccharide injection increased (P<0.05) rectal temperature at 2 and 4 h, and had an interactive effect (P<0.05) with levan-type fructan supplementation at 4 h after the challenge. At 2, 4, 6, and 8 h, serum cortisol, tumor necrosis factor-α, and IL-6 concentration increased (P<0.05) by LPS challenge, and there was an interactive effect between LPS challenge and the inclusion of levan-type fructan (P<0.05). Dietary levan-type fructan supplementation decreased serum cortisol concentration at 8 h, tumor necrosis factor-α concentration at 4, 6, and 8 h, and IL-6 concentration at 6 and 8 h after the challenge (P<0.05). In conclusion, dietary supplementation with 0.10% levan-type fructan can improve growth performance, digestibility, and fecal Lactobacillus counts, and has a beneficial effect on the immune response during an inflammatory challenge in growing pigs.
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Affiliation(s)
- J Li
- Department of Animal Resource and Science, Dankook University, Cheonan, Choongnam, South Korea 330-714
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Moreno-Vilet L, Moscosa-Santillán M, Grajales-Lagunes A, González-Chávez M, Bonnin-Paris J, Bostyn S, Ruiz-Cabrera M. Sugars and Fructans Separation by Nanofiltration from Model Sugar Solution and Comparative Study with Natural Agave Juice. SEP SCI TECHNOL 2013. [DOI: 10.1080/01496395.2013.786729] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Hu N, Yuan B, Sun J, Wang SA, Li FL. Thermotolerant Kluyveromyces marxianus and Saccharomyces cerevisiae strains representing potentials for bioethanol production from Jerusalem artichoke by consolidated bioprocessing. Appl Microbiol Biotechnol 2012; 95:1359-68. [PMID: 22760784 DOI: 10.1007/s00253-012-4240-8] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2012] [Revised: 06/12/2012] [Accepted: 06/14/2012] [Indexed: 11/24/2022]
Abstract
Thermotolerant inulin-utilizing yeast strains are desirable for ethanol production from Jerusalem artichoke tubers by consolidated bioprocessing (CBP). To obtain such strains, 21 naturally occurring yeast strains isolated by using an enrichment method and 65 previously isolated Saccharomyces cerevisiae strains were investigated in inulin utilization, extracellular inulinase activity, and ethanol fermentation from inulin and Jerusalem artichoke tuber flour at 40 °C. The strains Kluyveromyces marxianus PT-1 (CGMCC AS2.4515) and S. cerevisiae JZ1C (CGMCC AS2.3878) presented the highest extracellular inulinase activity and ethanol yield in this study. The highest ethanol concentration in Jerusalem artichoke tuber flour fermentation (200 g L(-1)) at 40 °C achieved by K. marxianus PT-1 and S. cerevisiae JZ1C was 73.6 and 65.2 g L(-1), which corresponded to the theoretical ethanol yield of 90.0 and 79.7 %, respectively. In the range of 30 to 40 °C, temperature did not have a significant effect on ethanol production for both strains. This study displayed the distinctive superiority of K. marxianus PT-1 and S. cerevisiae JZ1C in the thermotolerance and utilization of inulin-type oligosaccharides reserved in Jerusalem artichoke tubers. It is proposed that both K. marxianus and S. cerevisiae have considerable potential in ethanol production from Jerusalem artichoke tubers by a high temperature CBP.
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Affiliation(s)
- Nan Hu
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, Shandong, 266109, China
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Michel-Cuello C, Ortiz-Cerda I, Moreno-Vilet L, Grajales-Lagunes A, Moscosa-Santillán M, Bonnin J, González-Chávez MM, Ruiz-Cabrera M. Study of enzymatic hydrolysis of fructans from Agave salmiana characterization and kinetic assessment. ScientificWorldJournal 2012; 2012:863432. [PMID: 22629216 PMCID: PMC3354743 DOI: 10.1100/2012/863432] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2011] [Accepted: 01/18/2012] [Indexed: 12/30/2022] Open
Abstract
Fructans were extracted from Agave salmiana juice, characterized and subjected to hydrolysis process using a commercial inulinase preparation acting freely. To compare the performance of the enzymatic preparation, a batch of experiments were also conducted with chicory inulin (reference). Hydrolysis was performed for 6 h at two temperatures (50, 60 °C) and two substrate concentrations (40, 60 mg/ml). Hydrolysis process was monitored by measuring the sugars released and residual substrate by HPLC. A mathematical model which describes the kinetics of substrate degradation as well as fructose production was proposed to analyze the hydrolysis assessment. It was found that kinetics were significantly influenced by temperature, substrate concentration, and type of substrate (P < 0.01). The extent of substrate hydrolysis varied from 82 to 99%. Hydrolysis product was mainly constituted of fructose, obtaining from 77 to 96.4% of total reducing sugars.
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Affiliation(s)
- Christian Michel-Cuello
- Programa Multidisciplinario de Posgrado en Ciencias Ambientales, Universidad Autónoma de San Luis Potosí, Avenida Dr Manuel Nava No 6, Zona Universitaria, 78210 San Luis Potosí, Mexico
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Barclay T, Ginic-Markovic M, Johnston MR, Cooper PD, Petrovsky N. Analysis of the hydrolysis of inulin using real time 1H NMR spectroscopy. Carbohydr Res 2012; 352:117-25. [PMID: 22464225 PMCID: PMC3324600 DOI: 10.1016/j.carres.2012.03.001] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2012] [Revised: 02/28/2012] [Accepted: 03/02/2012] [Indexed: 12/27/2022]
Abstract
The hydrolysis of various carbohydrates was investigated under acidic conditions in real time by (1)H NMR spectroscopy, with a focus on the polysaccharide inulin. Sucrose was used as a model compound to illustrate the applicability of this technique. The hydrolysis of sucrose was shown to follow pseudo first order kinetics and have an activation energy of 107.0 kJ mol(-1) (SD 1.7 kJ mol(-1)). Inulin, pullulan and glycogen also all followed pseudo first order kinetics, but had an initiation phase at least partially generated by the protonation of the glycosidic bonds. It was also demonstrated that polysaccharide chain length has an effect on the hydrolysis of inulin. For short chain inulin (DPn 18, SD 0.70) the activation energy calculated for the hydrolytic cleavage of glucose was similar to sucrose at 108.5 kJ mol(-1) (SD 0.60). For long chain inulin (DPn 30, SD 1.3) the activation energy for the hydrolytic cleavage of glucose was reduced to 80.5 kJ mol(-1) (SD 2.3 kJ mol(-1)). This anomaly has been attributed to varied conformations for the two different lengths of inulin chain in solution.
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Affiliation(s)
- Thomas Barclay
- School of Chemical and Physical Sciences, Flinders University, Adelaide, Australia 5042
| | - Milena Ginic-Markovic
- School of Chemical and Physical Sciences, Flinders University, Adelaide, Australia 5042
| | - Martin R. Johnston
- School of Chemical and Physical Sciences, Flinders University, Adelaide, Australia 5042
| | - Peter D. Cooper
- Cancer Research Laboratory, ANU Medical School at The Canberra Hospital, Australian National University, Canberra, Australia 2605
- Vaxine Pty Ltd, Flinders Medical Centre, Adelaide Australia 5042
| | - Nikolai Petrovsky
- Vaxine Pty Ltd, Flinders Medical Centre, Adelaide Australia 5042
- Department of Endocrinology, Flinders Medical Centre, Adelaide, Australia 5042
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de Oliveira AJB, Gonçalves RAC, Chierrito TPC, dos Santos MM, de Souza LM, Gorin PAJ, Sassaki GL, Iacomini M. Structure and degree of polymerisation of fructooligosaccharides present in roots and leaves of Stevia rebaudiana (Bert.) Bertoni. Food Chem 2011; 129:305-311. [DOI: 10.1016/j.foodchem.2011.04.057] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2011] [Revised: 04/18/2011] [Accepted: 04/21/2011] [Indexed: 11/25/2022]
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Saengkanuk A, Nuchadomrong S, Jogloy S, Patanothai A, Srijaranai S. A simplified spectrophotometric method for the determination of inulin in Jerusalem artichoke (Helianthus tuberosus L.) tubers. Eur Food Res Technol 2011. [DOI: 10.1007/s00217-011-1552-3] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Medium optimization and structural characterization of exopolysaccharides from endophytic bacterium Paenibacillus polymyxa EJS-3. Carbohydr Polym 2010. [DOI: 10.1016/j.carbpol.2009.07.055] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Liu J, Luo J, Ye H, Sun Y, Lu Z, Zeng X. Production, characterization and antioxidant activities in vitro of exopolysaccharides from endophytic bacterium Paenibacillus polymyxa EJS-3. Carbohydr Polym 2009. [DOI: 10.1016/j.carbpol.2009.03.046] [Citation(s) in RCA: 146] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Ravenscroft N, Cescutti P, Hearshaw MA, Ramsout R, Rizzo R, Timme EM. Structural analysis of fructans from Agave americana grown in South Africa for spirit production. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2009; 57:3995-4003. [PMID: 19348427 DOI: 10.1021/jf8039389] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Fructans isolated from Agave americana grown in South Africa are currently used for spirit production. Structural studies on water-soluble fructans were performed to facilitate the development of other applications including its use as a prebiotic. Acid hydrolysis followed by HPAEC-PAD analysis confirmed that the fructan was composed of glucose and fructose, and size analysis by HPAEC-PAD and size exclusion chromatography indicated that the saccharides have a DP range from 6 to 50. An average DP of 14 was estimated by (1)H NMR analysis. Linkage analysis and ESI-MS studies suggest that A. americana has a neofructan structure consisting of a central sucrose to which (2 → 1)- and (2 → 6)-linked β-D-Fruf chains are attached. The (2 → 1)-linked units extend from C-1 of Fru and C-6 of glucose, whereas the (2 → 6)-linked β-D-Fruf units are attached to C-6 of the central Fru. This structure accounts for the presence of equimolar amounts of 1,6-linked Glu and 1,2,6-linked Fru found in linkage analysis and the multiplicity of the NMR signals observed. Detailed ESI-MS studies were performed on fructan fractions: native, periodate oxidized/reduced, and permethylated oligomers. These derivatizations introduced mass differences between Glc and Fru following oxidation and between 1,2-, 1,6-, 2,6-, and 1,2,6-linked units after methylation. Thus, ESI-MS showed the presence of a single Glc per fructan chain and that it is predominantly internal, rather than terminal as found in inulin. These structural features were confirmed by the use of 1D and 2D NMR experiments.
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Affiliation(s)
- Neil Ravenscroft
- Bioanalytical and Vaccine Research, Department of Chemistry, University of Cape Town, Rondebosch 7701, South Africa.
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Kato N, Mizuno M, Nakai Y, Nozaki K, Suga H, Kanda T, Yamanaka S, Amano Y. Structural Analysis of the Water-soluble Carbohydrate from Asaia bogorensis by NMR Spectroscopy. J Appl Glycosci (1999) 2007. [DOI: 10.5458/jag.54.231] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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