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Park S, Shin Y, Kim JM, Kim MS, Jung S. Rhizobial oxidized 3-hydroxylbutanoyl glycan-based gelatin hydrogels with enhanced physiochemical properties for pH-responsive drug delivery. Int J Biol Macromol 2024; 264:130538. [PMID: 38432278 DOI: 10.1016/j.ijbiomac.2024.130538] [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: 01/07/2024] [Revised: 02/22/2024] [Accepted: 02/27/2024] [Indexed: 03/05/2024]
Abstract
Rhizobial exopolysaccharide (EPS) is an acidic polysaccharide involved in nitrogen fixation-related signal transduction in the rhizosphere, serving as a structural support for biofilms, and protecting against various external environmental stresses. Rhizobial EPS as a hydrogel biomaterial was used for a pH-responsive drug delivery system combing with gelatins. Pure gelatin (GA) hydrogels have limited practical applications due to their poor mechanical strength and poor thermal stability. We developed new GA hydrogels using oxidized 3-hydroxylbutanoyl glycan (OHbG) as a polymer cross-linking agent to overcome these limitations. OHbG was synthesized from sodium periodate oxidation of 3-hydroxylbutanoyl glycan directly isolated from Rhizobium leguminosarum bv. viciae VF39. The newly fabricated OHbG/GA hydrogels exhibited 21-fold higher compressive stress and 4.7-fold higher storage modulus (G') than GA at the same strain. This result suggested that OHbG provided mechanical improvement. In addition, these OHbG/GA hydrogels showed effective pH-controlled drug release for 5-fluorouracil, self-healable, and self-antioxidant capacity by uronic acids of OHbG. Cell viability tests using HEK-293 cells in vitro also showed that the OHbG/GA hydrogels were non-toxic. This suggests that the new OHbG/GA hydrogels can be used as a potentially novel biomaterial for drug delivery based on its self-healing ability, antioxidant capacity, and pH-responsive drug delivery.
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Affiliation(s)
- Sohyun Park
- Department of Bioscience and Biotechnology, Microbial Carbohydrate Resource Bank (MCRB), Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, South Korea
| | - Younghyun Shin
- Department of Bioscience and Biotechnology, Microbial Carbohydrate Resource Bank (MCRB), Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, South Korea
| | - Jin-Mo Kim
- Convergence Technology Laboratory, Kolmar Korea, 61, Heolleung-ro-8-gil, Seocho-gu, Seoul 06792, South Korea
| | - Moo Sung Kim
- Macrocare, 32 Gangni 1-gil, Cheongju 28126, South Korea
| | - Seunho Jung
- Department of Bioscience and Biotechnology, Microbial Carbohydrate Resource Bank (MCRB), Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, South Korea; Department of Systems Biotechnology, Microbial Carbohydrate Resource Bank (MCRB), Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, South Korea.
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2
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Shin Y, Hu Y, Park S, Jung S. Novel succinoglycan dialdehyde/aminoethylcarbamoyl-β-cyclodextrin hydrogels for pH-responsive delivery of hydrophobic drugs. Carbohydr Polym 2023; 305:120568. [PMID: 36737206 DOI: 10.1016/j.carbpol.2023.120568] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 01/04/2023] [Accepted: 01/04/2023] [Indexed: 01/15/2023]
Abstract
β-Cyclodextrin cross-linked succinoglycan dialdehyde hydrogels was prepared for hydrophobic drug delivery. Succinoglycan dialdehyde (SGDA) was synthesized from sodium periodate oxidation of succinoglycan isolated from Sinorhizobium meliloti Rm1021. Aminoethylcarbamoyl-β-cyclodextrin (ACD) was crosslinked with SGDA to form a succinoglycan dialdehyde/aminoethylcarbamoyl-β-cyclodextrin (SGDA/ACD) hydrogels. The SGDA/ACD hydrogels exhibited a 65.7 % improvement in storage modulus (G') and a 5.7-fold higher compressive strain than the SGDA/poly(ethylene glycol) diamine (PEG) hydrogels as controls. A hardly soluble drug, baicalein was used for the drug loading and release properties of SGDA/ACD hydrogels. Baicalein was released about 98 % within 48 h at pH 7.4, but not completely released even after 48 h at pH 2.0. In addition, at pH 7.4, only about 56 % of the baicalein loaded on the SGDA/PEG hydrogels was released within 48 h, while about 98 % of the baicalein loaded on the SGDA/ACD hydrogels was released within 48 h. It indicates that ACD significantly improved the solubilization efficacy of the baicalein. In vitro testing of cell viability using HEK-293 cells also showed that the SGDA/ACD hydrogels were suitable for the cells. In conclusion, SGDA/ACD hydrogels significantly enhance the utilization of baicalein and provide potential applications in drug delivery systems for hardly soluble drugs.
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Affiliation(s)
- Younghyun Shin
- Department of Bioscience and Biotechnology, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, South Korea
| | - Yiluo Hu
- Department of Bioscience and Biotechnology, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, South Korea
| | - Sohyun Park
- Department of Bioscience and Biotechnology, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, South Korea
| | - Seunho Jung
- Department of Bioscience and Biotechnology, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, South Korea; Department of Systems Biotechnology, Microbial Carbohydrate Resource Bank (MCRB), Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, South Korea.
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Zhang G, Sun H, Xu Z, Tan Z, Xiao L, He M, Shang J, Tsapieva AN, Zhang L. Screening of Bifidobacteria with Probiotic Potential from Healthy Infant Feces by Using 2'-Fucosyllactose. Foods 2023; 12:foods12040858. [PMID: 36832933 PMCID: PMC9957139 DOI: 10.3390/foods12040858] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/14/2023] [Accepted: 02/14/2023] [Indexed: 02/19/2023] Open
Abstract
Using 2'-fucosyllactose (2'-FL) as the sole carbon source can be an efficient way to screen bifidobacteria with superior probiotic capabilities since 2'-FL is a key element in promoting the growth of intestinal bifidobacteria in newborns. This approach was used in this work to screen eight bifidobacteria strains, including one strain of Bifidobacterium longum subsp. infantis BI_Y46 and seven strains of Bifidobacterium bifidum (BB_Y10, BB_Y30, BB_Y39, BB_S40, BB_H4, BB_H5 and BB_H22). Studies on their probiotic properties showed that BI_Y46 had a unique morphology with pilus-like structure, a high resistance to bile salt stimulation and a potent inhibitory action on Escherichia coli ATCC 25922. Similarly, BB_H5 and BB_H22 produced more extracellular polysaccharides and had a higher protein content than other strains. In contrast, BB_Y22 displayed considerable auto-aggregation activity and a high resistance to bile salt stimulation. Interestingly, BB_Y39 with weak self-aggregation ability and acid resistance had very excellent bile salt tolerance, extracellular polysaccharides (EPS) production and bacteriostatic ability. In conclusion, 2'-FL was used as sole carbon source to identify eight bifidobacteria with excellent probiotic properties.
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Affiliation(s)
- Gongsheng Zhang
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Hui Sun
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Zihe Xu
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Ze Tan
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Lihong Xiao
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Mingxue He
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Jiaqi Shang
- Key Laboratory of Bionic Engineering, Ministry of Education, College of Biological and Agricultural Engineering, Jilin University, Changchun 130022, China
| | - Anna N. Tsapieva
- Department of Molecular Microbiology, FSBSI Institute of Experimental Medicine, Acad. Pavlov Street, 12, 197376 St. Petersburg, Russia
| | - Lili Zhang
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin 150030, China
- Correspondence: ; Tel.: +86-451-5519-0675
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Kim Y, Hu Y, Jeong JP, Jung S. Injectable, self-healable and adhesive hydrogels using oxidized Succinoglycan/chitosan for pH-responsive drug delivery. Carbohydr Polym 2022; 284:119195. [DOI: 10.1016/j.carbpol.2022.119195] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 01/24/2022] [Accepted: 01/26/2022] [Indexed: 12/12/2022]
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Shin Y, Kim D, Hu Y, Kim Y, Hong IK, Kim MS, Jung S. pH-Responsive Succinoglycan-Carboxymethyl Cellulose Hydrogels with Highly Improved Mechanical Strength for Controlled Drug Delivery Systems. Polymers (Basel) 2021; 13:3197. [PMID: 34578098 PMCID: PMC8467855 DOI: 10.3390/polym13183197] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/13/2021] [Accepted: 09/17/2021] [Indexed: 12/13/2022] Open
Abstract
Carboxymethyl cellulose (CMC)-based hydrogels are generally superabsorbent and biocompatible, but their low mechanical strength limits their application. To overcome these drawbacks, we used bacterial succinoglycan (SG), a biocompatible natural polysaccharide, as a double crosslinking strategy to produce novel interpenetrating polymer network (IPN) hydrogels in a non-bead form. These new SG/CMC-based IPN hydrogels significantly increased the mechanical strength while maintaining the characteristic superabsorbent property of CMC-based hydrogels. The SG/CMC gels exhibited an 8.5-fold improvement in compressive stress and up to a 6.5-fold higher storage modulus (G') at the same strain compared to the CMC alone gels. Furthermore, SG/CMC gels not only showed pH-controlled drug release for 5-fluorouracil but also did not show any cytotoxicity to HEK-293 cells. This suggests that SG/CMC hydrogels could be used as future biomedical biomaterials for drug delivery.
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Affiliation(s)
- Younghyun Shin
- Center for Biotechnology Research in UBITA (CBRU), Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Korea; (Y.S.); (D.K.); (Y.H.); (Y.K.)
| | - Dajung Kim
- Center for Biotechnology Research in UBITA (CBRU), Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Korea; (Y.S.); (D.K.); (Y.H.); (Y.K.)
| | - Yiluo Hu
- Center for Biotechnology Research in UBITA (CBRU), Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Korea; (Y.S.); (D.K.); (Y.H.); (Y.K.)
| | - Yohan Kim
- Center for Biotechnology Research in UBITA (CBRU), Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Korea; (Y.S.); (D.K.); (Y.H.); (Y.K.)
| | - In Ki Hong
- Covergence Technology Laboratory, Kolmar Korea, 61, Heolleung-ro-8-gil, Seocho-gu, Seoul 06800, Korea;
| | - Moo Sung Kim
- Macrocare, 32 Gangni 1-gil, Cheongju 28126, Korea;
| | - Seunho Jung
- Center for Biotechnology Research in UBITA (CBRU), Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Korea; (Y.S.); (D.K.); (Y.H.); (Y.K.)
- Center for Biotechnology Research in UBITA (CBRU), Department of Systems Biotechnology & Institute for Ubiquitous Information Technology and Applications (UBITA), Konkuk University, Seoul 05029, Korea
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Fabrication of Flexible pH-Responsive Agarose/Succinoglycan Hydrogels for Controlled Drug Release. Polymers (Basel) 2021; 13:polym13132049. [PMID: 34206692 PMCID: PMC8272162 DOI: 10.3390/polym13132049] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/21/2021] [Accepted: 06/21/2021] [Indexed: 01/09/2023] Open
Abstract
Agarose/succinoglycan hydrogels were prepared as pH-responsive drug delivery systems with significantly improved flexibility, thermostability, and porosity compared to agarose gels alone. Agarose/succinoglycan hydrogels were made using agarose and succinoglycan, a polysaccharide directly isolated from Sinorhizobium meliloti. Mechanical and physical properties of agarose/succinoglycan hydrogels were investigated using various instrumental methods such as rheological measurements, attenuated total reflection–Fourier transform infrared (ATR-FTIR) spectroscopic analysis, X-ray diffraction (XRD), and field-emission scanning electron microscopy (FE-SEM). The results showed that the agarose/succinoglycan hydrogels became flexible and stable network gels with an improved swelling pattern in basic solution compared to the hard and brittle agarose gel alone. In addition, these hydrogels showed a pH-responsive delivery of ciprofloxacin (CPFX), with a cumulative release of ~41% within 35 h at pH 1.2 and complete release at pH 7.4. Agarose/succinoglycan hydrogels also proved to be non-toxic as a result of the cell cytotoxicity test, suggesting that these hydrogels would be a potential natural biomaterial for biomedical applications such as various drug delivery system and cell culture scaffolds.
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Kim S, Jung S. Biocompatible and self-recoverable succinoglycan dialdehyde-crosslinked alginate hydrogels for pH-controlled drug delivery. Carbohydr Polym 2020; 250:116934. [PMID: 33049846 DOI: 10.1016/j.carbpol.2020.116934] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 07/21/2020] [Accepted: 08/10/2020] [Indexed: 01/19/2023]
Abstract
We fabricated polysaccharide-based hydrogels, which are biocompatible, self-recoverable and pH-sensitive. Succinoglycan dialdehyde (SGDA) was first synthesized from bacterial succinoglycan directly isolated from Sinorhizobium meliloti and then hydrazine-functionalized alginate (HZ-Alg) was prepared to form SGDA-crosslinked alginate hydrogels (SGDA/HZ-Alg) without any catalyst. Due to structural characteristics of SGDA, SGDA/HZ-Alg were effectively obtained in a short time even at low concentrations (0.94-1.57 wt%) where they exhibited self-recoverable and tunable rheological properties corresponding to efficiency of recovery from 93.2%-97.9%. Moreover, SGDA/HZ-Alg showed the pH-responsive degradation as well as pH-controlled release behavior for 5-fluorouracil. 5-Fluorouracil was released approximately 98 % at pH 2.0 within 12 h, but not completely released even after 24 h at pH 7.4. The WST-8 assay results also demonstrated that SGDA/HZ-Alg did not show any cytotoxicity against HEK-293 cells. Since the suggested hydrogels are biocompatible, rheologically self-recoverable and tunable, and pH-controllable, they would be potential biomaterials for the hydrogel-based drug delivery systems.
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Affiliation(s)
- Seonmok Kim
- Department of Bioscience and Biotechnology, Microbial Carbohydrate Resource Bank (MCRB), Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, South Korea
| | - Seunho Jung
- Department of Bioscience and Biotechnology, Microbial Carbohydrate Resource Bank (MCRB), Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, South Korea; Department of Systems Biotechnology, Microbial Carbohydrate Resource Bank (MCRB), Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, South Korea.
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8
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Gao H, Yang L, Tian J, Huang L, Huang D, Zhang W, Xie F, Niu Y, Jin M, Jia C, Zou C, Huang J, Chang Z, Yang X, Jiang D. Characterization and rheological properties analysis of the succinoglycan produced by a high-yield mutant of Rhizobium radiobacter ATCC 19358. Int J Biol Macromol 2020; 166:61-70. [PMID: 33096177 DOI: 10.1016/j.ijbiomac.2020.10.087] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 10/11/2020] [Accepted: 10/12/2020] [Indexed: 12/14/2022]
Abstract
Succinoglycan is an industrially important exopolysaccharide biosynthesized by bacteria. In this study, mutant strain 18052 N-11 was obtained from the wild type strain Rhizobium radiobacter ATCC 19358 by NTG mutagenesis. It has a high yield succinoglycan of 32.5 g/L cultured in a 15 L-fementer for 72 h. Succinoglycan SG-A from the wild type strain has two components, and the molecular weights were 1.55 × 107 Da and 1.26 × 106 Da, respectively. While, succinoglycan SG-N from the mutant strain was a homogeneous polysaccharide, and the molecular weight was 1.01 × 107 Da. The molecular weight of both succinoglycan was higher than those reported in literatures. DSC thermogram of SG-A showed a higher endothermic peak than that of SG-N due to the higher crystallinity of SG-A. The dynamic frequency sweep test of SG-A and SG-N showed that the elastic modulus G' and viscosity modulus G" curves intersected at 65 °C, indicating the thermally induced order-disorder conformation. The results of effect of concentrations (2.5-15%) and temperatures (25-75 °C) on apparent viscosity of SG-A and SG-N showed that the succinoglycan solutions exhibited non-Newtonian, shear-thinning behavior. Both SG-A and SG-N showed an excellent emulsification activity. The characterizations and rheological properties make SG-A and SG-N prominent candidates in food, cosmetics, pharmaceutical and petroleum industries.
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Affiliation(s)
- Hongliang Gao
- School of Life Sciences, East China Normal University, Shanghai 200241, People's Republic of China
| | - Li Yang
- School of Life Sciences, East China Normal University, Shanghai 200241, People's Republic of China
| | - Jiangtao Tian
- School of Life Sciences, East China Normal University, Shanghai 200241, People's Republic of China
| | - Lingling Huang
- School of Life Sciences, East China Normal University, Shanghai 200241, People's Republic of China
| | - Dating Huang
- School of Life Sciences, East China Normal University, Shanghai 200241, People's Republic of China
| | - Wei Zhang
- School of Life Sciences, East China Normal University, Shanghai 200241, People's Republic of China
| | - Fangrui Xie
- School of Life Sciences, East China Normal University, Shanghai 200241, People's Republic of China
| | - Yanning Niu
- School of Life Sciences, East China Normal University, Shanghai 200241, People's Republic of China
| | - Mingfei Jin
- School of Life Sciences, East China Normal University, Shanghai 200241, People's Republic of China
| | - Caifeng Jia
- School of Life Sciences, East China Normal University, Shanghai 200241, People's Republic of China
| | - Chunjing Zou
- School of Life Sciences, East China Normal University, Shanghai 200241, People's Republic of China
| | - Jing Huang
- School of Life Sciences, East China Normal University, Shanghai 200241, People's Republic of China
| | - Zhongyi Chang
- School of Life Sciences, East China Normal University, Shanghai 200241, People's Republic of China
| | - Xuexia Yang
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China.
| | - Deming Jiang
- School of Life Sciences, East China Normal University, Shanghai 200241, People's Republic of China.
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Zhang L, Chichlowski M, Gross G, Holle MJ, Lbarra-Sánchez LA, Wang S, Miller MJ. Milk Fat Globule Membrane Protects Lactobacillus rhamnosus GG from Bile Stress by Regulating Exopolysaccharide Production and Biofilm Formation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:6646-6655. [PMID: 32396007 DOI: 10.1021/acs.jafc.0c02267] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The milk fat globule membrane (MFGM) is a complex, highly conserved structure surrounding fat droplets secreted into mammalian milk. This study evaluated the impact of MFGM on Lactobacillus rhamnosus GG (LGG). MFGM-10 (2.5 g/L, 5 g/L, and 10 g/L) did not affect LGG growth in MRS medium but enhanced the ability of LGG to survive in the presence of 0.5% porcine bile. In the presence of MFGM-10 (5 g/L) and bile (0.5%), there were less complex polysaccharides in the media and less capsular polysaccharides associated with the LGG cells compared to the bile exposure alone (p < 0.05). The expression of four EPS genes was modulated by bile stress and MFGM. Biofilm thickness was increased (p < 0.05) during bile stress with MFGM compared to other treatments. Furthermore, MFGM increased LGG survival during transit in the murine GI tract. Future experiments will determine the impact of MFGM on LGG probiotic functionality.
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Affiliation(s)
- Lili Zhang
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, China
- Department of Food Science and Human Nutrition, University of Illinois Urbana-Champaign, 905 South Goodwin Avenue, Urbana, Illinois 61801, United States
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Maciej Chichlowski
- Mead Johnson Nutrition, Evansville, Indiana 47721, United States
- Mead Johnson Nutrition, Nijmegen 6545 CJ, The Netherlands
| | - Gabriele Gross
- Mead Johnson Nutrition, Evansville, Indiana 47721, United States
- Mead Johnson Nutrition, Nijmegen 6545 CJ, The Netherlands
| | - Maxwell J Holle
- Department of Food Science and Human Nutrition, University of Illinois Urbana-Champaign, 905 South Goodwin Avenue, Urbana, Illinois 61801, United States
| | - Luis A Lbarra-Sánchez
- Department of Food Science and Human Nutrition, University of Illinois Urbana-Champaign, 905 South Goodwin Avenue, Urbana, Illinois 61801, United States
| | - Shumei Wang
- Department of Food Science and Human Nutrition, University of Illinois Urbana-Champaign, 905 South Goodwin Avenue, Urbana, Illinois 61801, United States
| | - Michael J Miller
- Department of Food Science and Human Nutrition, University of Illinois Urbana-Champaign, 905 South Goodwin Avenue, Urbana, Illinois 61801, United States
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Han M, Xu JZ, Liu ZM, Qian H, Zhang WG. Co-production of microbial oil and exopolysaccharide by the oleaginous yeastSporidiobolus pararoseusgrown in fed-batch culture. RSC Adv 2018; 8:3348-3356. [PMID: 35541180 PMCID: PMC9077544 DOI: 10.1039/c7ra12813d] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Accepted: 01/03/2018] [Indexed: 11/21/2022] Open
Abstract
The production cost of microbial oil was reduced by improving the exopolysaccharide (EPS) production to share the production cost using Sporidiobolus pararoseus JD-2. Batch fermentation demonstrated that S. pararoseus JD-2 has the potential to co-produce oil and EPS with 120 g L−1 glucose, 20 g L−1 corn steep liquor and 10 g L−1 yeast extract as carbon and nitrogen sources. Using fed-batch fermentation for 72 h resulted in oil and EPS production of 41.6 ± 2.5 g L−1 and 13.1 ± 0.6 g L−1 with the productivity of 0.58 g L−1 h−1 and 0.182 g L−1 h−1, respectively. The fat soluble nutrients in the oil were studied, indicating that it was constituted of 79.19% unsaturated fatty acids and contained 505 mg per kg-oil of carotenoids. Moreover, the EPS contained only one type of polysaccharide; the main monosaccharide compositions were galactose, glucose and mannose in a proportion of 16 : 8 : 1. These results implied that EPS produced by S. pararoseus JD-2 was a new type of EPS. The production cost of microbial oil was reduced by improving the exopolysaccharide (EPS) production to share the production cost using Sporidiobolus pararoseus JD-2.![]()
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Affiliation(s)
- Mei Han
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology
- Ministry of Education
- School of Biotechnology
- Jiangnan University
- WuXi 214122
| | - Jian-Zhong Xu
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology
- Ministry of Education
- School of Biotechnology
- Jiangnan University
- WuXi 214122
| | - Zhen-Min Liu
- State Key Laboratory of Dairy Biotechnology
- Technology Center Bright Dairy & Food Co., Ltd
- Shanghai 200436
- China
| | - He Qian
- School of Food Science and Technology
- Jiangnan University
- Wuxi-214122
- China
| | - Wei-Guo Zhang
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology
- Ministry of Education
- School of Biotechnology
- Jiangnan University
- WuXi 214122
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11
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Characterization and rheological behaviour analysis of the succinoglycan produced by Rhizobium radiobacter strain CAS from curd sample. Food Hydrocoll 2017. [DOI: 10.1016/j.foodhyd.2016.10.008] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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12
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Ruiz SP, Martinez CO, Noce AS, Sampaio AR, Baesso ML, Matioli G. Biosynthesis of succinoglycan by Agrobacterium radiobacter NBRC 12665 immobilized on loofa sponge and cultivated in sugar cane molasses. Structural and rheological characterization of biopolymer. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molcatb.2015.08.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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13
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Bakhtiyari M, Moosavi-Nasab M, Askari H. Optimization of succinoglycan hydrocolloid production by Agrobacterium radiobacter grown in sugar beet molasses and investigation of its physicochemical characteristics. Food Hydrocoll 2015. [DOI: 10.1016/j.foodhyd.2014.11.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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14
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Zhou F, Wu Z, Chen C, Han J, Ai L, Guo B. Exopolysaccharides produced by Rhizobium radiobacter S10 in whey and their rheological properties. Food Hydrocoll 2014. [DOI: 10.1016/j.foodhyd.2013.08.016] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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15
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Ben Salah R, Jaouadi B, Bouaziz A, Chaari K, Blecker C, Derrouane C, Attia H, Besbes S. Fermentation of date palm juice by curdlan gum production from Rhizobium radiobacter ATCC 6466™: Purification, rheological and physico-chemical characterization. Lebensm Wiss Technol 2011. [DOI: 10.1016/j.lwt.2010.11.023] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Im SA, Wang W, Lee CK, Lee YN. Activation of Macrophages by Exopolysaccharide Produced by MK1 Bacterial Strain Isolated from Neungee Mushroom, Sarcodon aspratus. Immune Netw 2010; 10:230-8. [PMID: 21286384 PMCID: PMC3026943 DOI: 10.4110/in.2010.10.6.230] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2010] [Revised: 11/19/2010] [Accepted: 11/24/2010] [Indexed: 12/03/2022] Open
Abstract
Background The MK1 strain, a novel bacterial isolate from soft-rotten tissue of the Neungee mushroom, produces copious amounts of exopolysaccharide (EPS) in a dextrose minimal medium. This study examined the molecular characteristics and immunomodulatory activity of MK1 EPS. Methods The EPS in the culture supernatant was purified by cold ethanol precipitation, and characterized by SDS-PAGE/silver staining and Bio-HPLC. The immunomodulatory activities of the EPS were examined using the mouse monocytic cell line, RAW 264.7 cells. Results The molecular weights of the purified EPS were rather heterogeneous, ranging from 10.6 to 55 kDa. The EPS was composed of glucose, rhamnose, mannose, galactose, and glucosamine at an approximate molar ratio of 1.00:0.8:0.71:0.29:0.21. EPS activated the RAW cells to produce cytokines, such as TNF-α and IL-1β, and nitric oxide (NO). EPS also induced the expression of co-stimulatory molecules, such as B7-1, B7-2 and ICAM-1, and increased the phagocytic activity. The macrophage-activating activity of EPS was not due to endotoxin contamination because the treatment of EPS with polymyin B did not reduce the macrophage-activating activity. Conclusion The EPS produced from the MK1 strain exerts macrophage-activating activity.
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Affiliation(s)
- Sun-A Im
- College of Pharmacy, Chungbuk National University, Cheongju 361-763, Korea
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Structural and Rheological Properties of Succinoglycan Biogums Made from Low-Quality Date Syrup or Sucrose Using Agrobacterium radiobacter Inoculation. FOOD BIOPROCESS TECH 2010. [DOI: 10.1007/s11947-010-0407-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Yoon S, Kim MK, Lee IY, Yun M, Shin JEN. Production and structural features of a water-soluble polysaccharide from a mutant strain of Agrobacterium sp. J IND ENG CHEM 2008. [DOI: 10.1016/j.jiec.2008.06.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Ha SJ, Kim SY, Seo JH, Moon HJ, Lee KM, Lee JK. Controlling the sucrose concentration increases Coenzyme Q10 production in fed-batch culture of Agrobacterium tumefaciens. Appl Microbiol Biotechnol 2007; 76:109-16. [PMID: 17479258 DOI: 10.1007/s00253-007-0995-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2007] [Revised: 04/09/2007] [Accepted: 04/11/2007] [Indexed: 10/23/2022]
Abstract
The production yield of Coenzyme Q(10) (CoQ(10)) from the sucrose consumed by Agrobacterium tumefaciens KCCM 10413 decreased, and high levels of exopolysaccharide (EPS) accumulated after switching from batch culture to fed-batch culture. Therefore, we examined the effect of sucrose concentration on the fermentation profile by A. tumefaciens. In the continuous fed-batch culture with the sucrose concentration maintained constantly at 10, 20, 30, and 40 g l(-1), the dry cell weight (DCW), specific CoQ(10) content, CoQ(10) production, and the production yield of CoQ(10) from the sucrose consumed increased, whereas EPS production decreased as maintained sucrose concentration decreased. The pH-stat fed-batch culture system was adapted for CoQ(10) production to minimize the concentration of the carbon source and osmotic stress from sucrose. Using the pH-stat fed-batch culture system, the DCW, specific CoQ(10) content, CoQ(10) production, and the product yield of CoQ(10) from the sucrose consumed increased by 22.6, 13.7, 39.3, and 39.3%, respectively, whereas EPS production decreased by 30.7% compared to those of fed-batch culture in the previous report (Ha SJ, Kim SY, Seo JH, Oh DK, Lee JK, Appl Microbiol Biotechnol, 74:974-980, 2007). The pH-stat fed-batch culture system was scaled up to a pilot scale (300 l), and the CoQ(10) production results obtained (626.5 mg l(-1) of CoQ(10) and 9.25 mg g DCW(-1) of specific CoQ(10) content) were similar to those obtained at the laboratory scale. Thus, an efficient and highly competitive process for microbial CoQ(10) production is available.
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Affiliation(s)
- Suk-Jin Ha
- BioNgene Co., Ltd., 10-1 Myungryun-Dong Chongro-Ku, Seoul, 110-521, South Korea
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Dogsa I, Kriechbaum M, Stopar D, Laggner P. Structure of bacterial extracellular polymeric substances at different pH values as determined by SAXS. Biophys J 2005; 89:2711-20. [PMID: 16085763 PMCID: PMC1366772 DOI: 10.1529/biophysj.105.061648] [Citation(s) in RCA: 86] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2005] [Accepted: 07/21/2005] [Indexed: 11/18/2022] Open
Abstract
Extracellular polymeric substances (EPS) play an important role in cell aggregation, cell adhesion, and biofilm formation, and protect cells from a hostile environment. The EPS was isolated by trichloroacetic acid/ethanol extraction from broth culture of a marine bacterium isolate. The EPS was composed of glucose and galactose as determined by HPLC and TLC; the protein content was on average 15 +/- 5% of EPS dry mass. The solution structure of EPS at different values of pH was revealed by small-angle x-ray scattering. Scattering curves of EPS solutions (0.4%, w/v) consistently showed two nearly linear log-log regions with slopes a and b in the q-ranges from 0.06 nm(-1) to 0.26 nm(-1), and from 0.27 nm(-1) to 0.88 nm(-1), respectively. Slope a was sensitive to pH changes whereas slope b was not. The observed sensitivity to pH was not a consequence of ionic strength variation with pH, as checked by salt addition. The pH variation causes major rearrangements of EPS structure mainly at length scales above 24 nm. To get a better understanding of the pH effect on EPS structure, the original model proposed by Geissler was refined into a mathematical model that enabled fitting of the experimental scattering curves in the pH range from 0.7 to 11.0. The model describes EPS structure as a network of randomly coiled polymeric chains with denser domains of polymeric chains. The results obtained from the model indicate that dense domains increase in average size from 19 nm at pH 11.0 to 52 nm at pH 0.7. The average distance between the polysaccharide chains at pH 0.7 was 2.3 nm, which indicates a compact EPS structure. Swelling was found to be at a maximum around pH = 8.8, where the average distance between the chains was 4.8 nm.
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Affiliation(s)
- Iztok Dogsa
- Laboratory for Biophysics, Jozef Stefan Institute, Ljubljana, Slovenia
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