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Makiura T, Matsutani M, Tseng HC, Fujimoto N, Ohnishi A. Succinate-mediated symbiosis between Dialister hominis and an uncharacterized Segatella-like pectinophile. Anaerobe 2024; 89:102883. [PMID: 39038530 DOI: 10.1016/j.anaerobe.2024.102883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2024] [Revised: 06/27/2024] [Accepted: 07/12/2024] [Indexed: 07/24/2024]
Abstract
OBJECTIVES Syntrophy has been documented between pectinophiles and methanol-utilizing bacteria, along with instances of cross-feeding between pectinophiles and methanogens. However, studies on the ecology of pectinophiles in anaerobic digestion (AD) are lacking. Therefore, in this study, we aimed to elucidate the ecology of pectinophiles by isolating novel pectinophile forms and conducting a comprehensive analysis of their physiology and ecology. METHODS Complex microbial communities from AD systems were enriched in a pectin-containing medium; subsequently, specific strains were isolated using a pectinophile isolation method. The carbon source assimilation and growth ability of the isolates, along with their symbiotic relationships, were evaluated using batch tests. RESULTS Strain LPYR103-Pre exhibited 16S rRNA gene sequence similarity and average nucleotide identity values of 94.3 % and 77.9 %, respectively, compared to its closest related species, Segatella cerevisiae. Strain LPYR103-Pre demonstrated attenuated growth in the presence of eight common sugars but exhibited remarkably high growth in the presence of pectin, d-galacturonate, and d-glucuronate, with succinate being identified as a primary metabolite. Accumulation of succinate inhibited the growth of strain LPYR103-Pre. However, this growth impediment was alleviated by Dialister hominis LPYG114-Dih, whose growth required succinate. CONCLUSIONS Our results elucidate the specific carbon source requirements of the Segatella-like strain LPYR103-Pre and succinate-mediated symbiosis involving D. hominis. These findings provide new insights into the degradation of pectin and its degradation products during AD, contributing to the identification of unknown pectinophiles.
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Affiliation(s)
- Tomoki Makiura
- Department of Fermentation Science, Faculty of Applied Bioscience, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya, Tokyo, 156-8502, Japan
| | - Minenosuke Matsutani
- NODAI Genome Research Center, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya, Tokyo, 156-8502, Japan
| | - Hou-Chia Tseng
- Department of Fermentation Science, Faculty of Applied Bioscience, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya, Tokyo, 156-8502, Japan
| | - Naoshi Fujimoto
- Department of Fermentation Science, Faculty of Applied Bioscience, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya, Tokyo, 156-8502, Japan
| | - Akihiro Ohnishi
- Department of Fermentation Science, Faculty of Applied Bioscience, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya, Tokyo, 156-8502, Japan.
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Manasa V, Appaiah KAA. Indigenous fungal strains isolation and molecular identification from coffee pulp for the production of pectic oligosaccharides. 3 Biotech 2023; 13:410. [PMID: 37997596 PMCID: PMC10663428 DOI: 10.1007/s13205-023-03811-9] [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: 02/25/2023] [Accepted: 10/07/2023] [Indexed: 11/25/2023] Open
Abstract
Coffee pulp (CP) is a significant agro-industrial waste generated during coffee bean processing, which possess substantial environmental contamination and is rich in pectin. The primary objective of this study was to investigate the conversion of pectin extracted from coffee pulp into pectic oligosaccharides (POS) using native microbial strains. The study aimed to optimize the growing conditions, including temperature, time, and pectin concentration, to assess the productivity of pectinase. Two fungal strains that exhibited the highest growth on CP were isolated and subsequently identified as Aspergillus fumigatus P-1007 and A. fumigatus HA1, employing 5.8S rRNA gene sequencing. The optimization of temperature for the organism was carried out between 25 and 45 °C; compared to the other temperatures at 45 °C the productivity of pectinase was high; the exact temperature was used for the time experiment where we found that compared to the A. fumigatus P-1007, A. fumigates HA1 was showed high enzyme productivity on 6th day. Hence, the highest productivity of endo-pectinase was seen at a temperature of 45 °C on the 6th day using isolated A. fumigates HA1 in the CP with 1% of coffee pectin. Additionally, the produced POS were screened and confirmed through TLC and HPLC analysis. The antioxidant activity of the POS derived from the separated CP demonstrated an effective concentration (EC50) of 400 µg/ml. The study indicates that the efficient utilization of CP waste for producing potentially valuable functional food ingredients, such as POS, holds promise for commercial development. Supplementary Information The online version contains supplementary material available at 10.1007/s13205-023-03811-9.
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Affiliation(s)
- Vallamkondu Manasa
- Microbiology and Fermentation Technology, Council of Scientific and Industrial Research-Central Food Technological Research Institute, Mysore, 570020 India
| | - K. A. Anu Appaiah
- Microbiology and Fermentation Technology, Council of Scientific and Industrial Research-Central Food Technological Research Institute, Mysore, 570020 India
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Hassan M, Ejaz U, Rashid R, Moin SF, Gulzar S, Sohail M, Hasan KA, Alswat AS, El-Bahy ZM. Utilization of wild Cressa cretica biomass for pectinase production from a halo-thermotolerant bacterium. Biotechnol J 2023; 18:e2200477. [PMID: 37458688 DOI: 10.1002/biot.202200477] [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: 09/22/2022] [Revised: 06/05/2023] [Accepted: 07/13/2023] [Indexed: 07/27/2023]
Abstract
Halophytes are the native inhabitants of saline environment. Their biomass can be considered as a potential substrate for the production of microbial enzymes. This study was intended at feasible utilization of a halophytic biomass, Cressia cretica, for pectinase production using a halo- and thermo-tolerant bacterium, Bacillus vallismortis MH 10. The data from fractionation of the C. cretica biomass revealed presence of 17% pectin in this wild biomass. Seven different factors (temperature, agitation, pH, inoculum size, peptone concentration, substrate concentration, and incubation time) affecting pectinase production using C. cretica were assessed through a statistical tool, Plackett-Burman design. Consequently, two significant factors (incubation time and peptone concentration) were optimized using the central composite design. The strain produced 20 IU mL-1 of pectinase after 24 h under optimized conditions. The enzyme production kinetics data also confirmed that 24 h is the most suitable cultivation period for pectinase production. Fourier transform infrared spectroscopy and scanning electron microscopy of C. cretica biomass ascertained utilization of pectin and structural changes after fermentation. The purification of pectinase by using DEAE column yielded specific activity and purification fold of 88.26 IU mg-1 and 3.2, respectively. The purified pectinase had a molecular weight of >65 kDa. This study offers prospects of large-scale production of pectinase by halotolerant strain in the presence of economical and locally grown substrate that makes the enzyme valuable for various industrial operations.
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Affiliation(s)
- Masooma Hassan
- Department of Microbiology, University of Karachi, Karachi, Pakistan
| | - Uroosa Ejaz
- Department of Biosciences, Faculty of Life Sciences, Shaheed Zulfikar Ali Bhutto Institute of Science and Technology (SZABIST), Karachi, Pakistan
| | - Rozina Rashid
- Department of Microbiology, University of Balochistan, Balochistan, Pakistan
| | - Syed Faraz Moin
- Dr. Zafar H Zaidi Center for Proteomics (Formely National Center for Proteomics), University of Karachi, Karach, Pakistan
| | - Salman Gulzar
- Dr Muhammad Ajmal Khan Institute of Sustainable of Halophytes Utilization, University of Karachi, Karachi, Pakistan
| | - Muhammad Sohail
- Department of Microbiology, University of Karachi, Karachi, Pakistan
| | - Khwaja Ali Hasan
- Molecular and Structural Biology Research Unit, Department of Biochemistry, University of Karachi, Karachi, Pakistan
| | - Amal S Alswat
- Department of Biotechnology, College of Science, Taif University, Taif, Saudi Arabia
| | - Zeinhom M El-Bahy
- Department of Chemistry, Faculty of Science, Al-Azhar University, Nasr City, Cairo, Egypt
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Nazemi Z, Sahraro M, Janmohammadi M, Nourbakhsh MS, Savoji H. A review on tragacanth gum: A promising natural polysaccharide in drug delivery and cell therapy. Int J Biol Macromol 2023; 241:124343. [PMID: 37054856 DOI: 10.1016/j.ijbiomac.2023.124343] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 03/24/2023] [Accepted: 04/02/2023] [Indexed: 04/15/2023]
Abstract
Tragacanth is an abundant natural gum extracted from wounds created in some plants and is dried for use in various applications from industry to biomedicines. It is a cost-effective and easily accessible polysaccharide with desirable biocompatibility and biodegradability, drawing much attention for use in new biomedical applications such as wound healing and tissue engineering. Moreover, this anionic polysaccharide with a highly branched structure has been used as an emulsifier and thickening agent in pharmaceutical applications. In the following, this gum has been interested as an appealing biomaterial for producing engineering tools in drug delivery. Furthermore, the biological properties of tragacanth gum have made it a favorable biomaterial in cell therapies, especially for bone tissue engineering. This review aims to discuss the recent studies on this natural gum as a potential carrier for different drugs and cells.
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Affiliation(s)
- Zahra Nazemi
- Faculty of New Sciences and Technologies, Semnan University, P.O. Box 19111-35131, Semnan, Iran
| | - Maryam Sahraro
- Department of Polyurethane and Advanced Materials, Iran Polymer & Petrochemical Institute, P.O. Box 14965-115, Tehran, Iran.
| | - Mahsa Janmohammadi
- Faculty of New Sciences and Technologies, Semnan University, P.O. Box 19111-35131, Semnan, Iran
| | - Mohammad Sadegh Nourbakhsh
- Faculty of New Sciences and Technologies, Semnan University, P.O. Box 19111-35131, Semnan, Iran; Faculty of Materials and Metallurgical Engineering, Semnan University, P.O. Box 19111-35131, Semnan, Iran.
| | - Houman Savoji
- Institute of Biomedical Engineering, Department of Pharmacology and Physiology, Faculty of Medicine, University of Montreal, Montreal, QC H3T 1J4, Canada; Research Center, Centre Hospitalier Universitaire Sainte-Justine, Montreal, QC H3T 1C5, Canada; Montreal TransMedTech Institute, Montreal, QC H3T 1J4, Canada.
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Ashrafian B, Hosseini-Abari A. Investigation of bioactivity of unsaturated oligo‑galacturonic acids produced from apple waste by Alcaligenes faecalis AGS3 and Paenibacillus polymyxa S4 Pectinases. Sci Rep 2022; 12:15830. [PMID: 36138114 PMCID: PMC9500027 DOI: 10.1038/s41598-022-20011-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Accepted: 09/07/2022] [Indexed: 11/09/2022] Open
Abstract
Pectin is one of the main structural components in fruits and an indigestible fiber made of D-galacturonic acid units with α (1-4) linkage. This study investigates the microbial degradation of pectin in apple waste and the production of bioactive compounds. Firstly, pectin-degrading bacteria were isolated and identified, then pectinolytic activity was assessed by DNS. The products were evaluated by TLC and LC-MS-ESI. The antioxidative effects were investigated using DPPH and anti-cancer effects and cytotoxicity were analyzed by MTT and flow cytometry. In this study two new bacterial isolates, Alcaligenes faecalis AGS3 and Paenibacillus polymyxa S4 with the pectinolytic enzyme were introduced. Structure analysis showed that the products of enzymatic degradation include unsaturated mono, di, tri, and penta galacturonic acids with 74% and 69% RSA at 40 mg/mL for A. faecalis and P. polymyxa S4, respectively. The results of anti-tumor properties on MCF-7 cells by MTT assay, for products of AGS3 and S4 at 40 mg/mL after 48 h, showed 7% and 9% survival, respectively. In the flow cytometric assessment, the compounds of AGS3 at 40 mg/mL were 100% lethal in 48 h and regarding S4 isolate caused 98% death. Cytotoxicity evaluation on L-929 cells showed no significant toxicity on living cells.
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Affiliation(s)
- Behnam Ashrafian
- Department of Cell and Molecular Biology & Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, 8174673441, Iran
| | - Afrouzossadat Hosseini-Abari
- Department of Cell and Molecular Biology & Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, 8174673441, Iran.
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Hosseini Abari A, Amini Rourani H, Ghasemi SM, Kim H, Kim YG. Investigation of antioxidant and anticancer activities of unsaturated oligo-galacturonic acids produced by pectinase of Streptomyces hydrogenans YAM1. Sci Rep 2021; 11:8491. [PMID: 33875695 PMCID: PMC8055656 DOI: 10.1038/s41598-021-87804-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 04/05/2021] [Indexed: 11/19/2022] Open
Abstract
Pectin, a diverse carbohydrate polymer in plants consists of a core of α-1,4-linked D-galacturonic acid units, includes a vast portion of fruit and agricultural wastes. Using the wastes to produce beneficial compounds is a new approach to control the negative environmental impacts of the accumulated wastes. In the present study, we report a pectinase producing bacterium Streptomyces hydrogenans YAM1 and evaluate antioxidative and anticancer effects of the oligosaccharides obtained from pectin degradation. The production of oligosaccharides due to pectinase activity was detected by thin layer chromatography (TLC) and matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS). Our results revealed that S. hydrogenans YAM1 can degrade pectin to unsaturated pectic oligo-galacturonic acids (POS) with approximately 93% radical scavenging activity in 20 mg/mL which it is more than 50% of the same concentration of pectin. Flow cytometric analysis revealed that MCF-7 cells viability decreased more than 32 and 92% following treatment with 6 and 20 mg/mL POS after 24 h, respectively. It is suggested that pectin degradation by S. hydrogenans YAM1 is not only a new approach to produce highly active compounds from fruit wastes, but also is an effective method to remove fibrous pollutants from different environments.
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Affiliation(s)
- Afrouzossadat Hosseini Abari
- Department of Cell and Molecular Biology & Microbiology, Faculty of Biological Sciences and Technology, University of Isfahan, Isfahan, Iran.
- Environmental Research Institute, University of Isfahan, Isfahan, Iran.
| | - Hamed Amini Rourani
- Department of Cell and Molecular Biology & Microbiology, Faculty of Biological Sciences and Technology, University of Isfahan, Isfahan, Iran
| | - Seyed Mahdi Ghasemi
- Department of Biotechnology, Faculty of Biological Sciences and Technology, Shahid Ashrafi Esfahani University, Isfahan, Iran
| | - Hyun Kim
- School of Chemical and Biological Engineering, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Yun-Gon Kim
- Department of Chemical Engineering, Soongsil University, Seoul, 06978, Republic of Korea
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Gum Tragacanth (GT): A Versatile Biocompatible Material beyond Borders. Molecules 2021; 26:molecules26061510. [PMID: 33802011 PMCID: PMC8000171 DOI: 10.3390/molecules26061510] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 03/06/2021] [Accepted: 03/08/2021] [Indexed: 01/18/2023] Open
Abstract
The use of naturally occurring materials in biomedicine has been increasingly attracting the researchers’ interest and, in this regard, gum tragacanth (GT) is recently showing great promise as a therapeutic substance in tissue engineering and regenerative medicine. As a polysaccharide, GT can be easily extracted from the stems and branches of various species of Astragalus. This anionic polymer is known to be a biodegradable, non-allergenic, non-toxic, and non-carcinogenic material. The stability against microbial, heat and acid degradation has made GT an attractive material not only in industrial settings (e.g., food packaging) but also in biomedical approaches (e.g., drug delivery). Over time, GT has been shown to be a useful reagent in the formation and stabilization of metal nanoparticles in the context of green chemistry. With the advent of tissue engineering, GT has also been utilized for the fabrication of three-dimensional (3D) scaffolds applied for both hard and soft tissue healing strategies. However, more research is needed for defining GT applicability in the future of biomedical engineering. On this object, the present review aims to provide a state-of-the-art overview of GT in biomedicine and tries to open new horizons in the field based on its inherent characteristics.
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Pozo MI, Mariën T, van Kemenade G, Wäckers F, Jacquemyn H. Effects of pollen and nectar inoculation by yeasts, bacteria or both on bumblebee colony development. Oecologia 2021; 195:689-703. [PMID: 33582870 DOI: 10.1007/s00442-021-04872-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 02/03/2021] [Indexed: 11/28/2022]
Abstract
It is increasingly recognized that gut microbiota have a major effect on the physiology, biology, ecology and evolution of their animal hosts. Because in social insects, the gut microbiota is acquired through the diet and by contact with nest provisions, it can be hypothesized that regular supplementation of microorganisms to the diet will have an impact on the fitness of the consumer and on the development of the whole colony. To test this hypothesis, we investigated how supplementation of bacteria, yeasts, and combinations of the two to either pollen or nectar affected colony development in the social bumblebee Bombus terrestris. Three yeasts and three bacterial species that live at the flower-insect interface were used in the experiments and the development of bumblebee colonies was monitored over a period of 10 weeks. The results showed that administration of microbes via pollen had a stronger positive impact on colony development than when provided via sugar water. Supplementation of bacteria led, in general, to a faster egg laying, higher brood size and increased production of workers during the first weeks, whereas yeasts or a combination of yeasts and bacteria had less impact on colony development. However, the results differed between microbial species, with Wickerhamiella bombiphila and Rosenbergiella nectarea showing the strongest increase in colony development. Torulaspora delbrueckii induced early male production, which is likely a fitness cost. We conclude that the tested bacteria-yeast consortia did not result in better colony development than the interacting species alone.
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Affiliation(s)
- María I Pozo
- Biology Department, Plant Conservation and Population Biology, KU Leuven, 3001, Heverlee, Belgium.
| | - Toon Mariën
- Biology Department, Plant Conservation and Population Biology, KU Leuven, 3001, Heverlee, Belgium
| | - Gaby van Kemenade
- Biology Department, Plant Conservation and Population Biology, KU Leuven, 3001, Heverlee, Belgium.,Biobest Group, Research and Development, 2260, Westerlo, Belgium
| | - Felix Wäckers
- Biobest Group, Research and Development, 2260, Westerlo, Belgium
| | - Hans Jacquemyn
- Biology Department, Plant Conservation and Population Biology, KU Leuven, 3001, Heverlee, Belgium
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