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Babich O, Ivanova S, Michaud P, Budenkova E, Kashirskikh E, Anokhova V, Sukhikh S. Synthesis of polysaccharides by microalgae Chlorella sp. BIORESOURCE TECHNOLOGY 2024; 406:131043. [PMID: 38936677 DOI: 10.1016/j.biortech.2024.131043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 06/24/2024] [Accepted: 06/24/2024] [Indexed: 06/29/2024]
Abstract
Microalgae are known to be the richest natural source of polysaccharides. The study aimed to evaluate the ability of microalgae from the Chlorella sp. genus to synthesize polysaccharides. Brody & Emerson max medium proved to be the most effective; the average cell content in the culture fluid at the beginning and at the end of cultivation for IPPAS Chlorella pyrenoidosa Chick was 1.23 ± 0.03 g/L and 1.71 ± 0.20 g/L, respectively. With a high average dry weight of IPPAS Chlorella pyrenoidosa Chick (4.45 ± 0.10 g/L), it produced the least amount of neutral sugars (0.75 ± 0.02 g/L) and uronic acids (0.14 ± 0.01 mg/L). The microalga IPPAS Chlorella vulgaris with the lowest average dry weight (1.18 ± 0.03 g/L) produced 0.80 ± 0.02 g/L of neutral sugars and 0.17 ± 0.01 mg/L of uronic acids. Microalgal polysaccharides have the potential to be used as a source for biologically active food additives, as they contain various types of polysaccharides that can be beneficial to human health.
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Affiliation(s)
- Olga Babich
- SEC «Applied Biotechnologies», Immanuel Kant BFU, Kaliningrad 236016, Russia
| | - Svetlana Ivanova
- Institute of NBICS-technologies, Kemerovo State University, Kemerovo 650043, Russia; Department of TNSMD Theory and Methods, Kemerovo State University, Kemerovo 650043, Russia.
| | - Philippe Michaud
- Institut Pascal, Université Clermont Auvergne, CNRS, Clermont Auvergne INP, F-63000 Clermont-Ferrand, France
| | - Ekaterina Budenkova
- SEC «Applied Biotechnologies», Immanuel Kant BFU, Kaliningrad 236016, Russia
| | - Egor Kashirskikh
- SEC «Applied Biotechnologies», Immanuel Kant BFU, Kaliningrad 236016, Russia
| | - Veronika Anokhova
- SEC «Applied Biotechnologies», Immanuel Kant BFU, Kaliningrad 236016, Russia
| | - Stanislav Sukhikh
- SEC «Applied Biotechnologies», Immanuel Kant BFU, Kaliningrad 236016, Russia
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Wang H, Qin L, Qi W, Elshobary M, Wang W, Feng P, Wang Z, Zhu S. Harmony in detoxification: Microalgae unleashing the potential of lignocellulosic pretreatment wastewater for resource utilization. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 927:171888. [PMID: 38531442 DOI: 10.1016/j.scitotenv.2024.171888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 02/28/2024] [Accepted: 03/20/2024] [Indexed: 03/28/2024]
Abstract
Lignocellulosic biomass is a pivotal renewable resource in biorefinery process, requiring pretreatment, primarily chemical pretreatment, for effective depolymerization and subsequent transformation. This process yields solid residue for saccharification and lignocellulosic pretreatment wastewater (LPW), which comprises sugars and inhibitors such as phenols and furans. This study explored the microalgal capacity to treat LPW, focusing on two key hydrolysate inhibitors: furfural and vanillin, which impact the growth of six green microalgae. Chlorella sorokiniana exhibited higher tolerance to furfural and vanillin. However, both inhibitors hindered the growth of C. sorokiniana and disrupted algal photosynthetic system, with vanillin displaying superior inhibition. A synergistic inhibitory effect (Q < 0.85) was observed with furfural and vanillin on algal growth. Furfural transformation to low-toxic furfuryl alcohol was rapid, yet the addition of vanillin hindered this process. Vanillin stimulated carbohydrate accumulation, with 50.48 % observed in the 0.1 g/L furfural + 0.1 g/L vanillin group. Additionally, vanillin enhanced the accumulation of C16: 0 and C18: 2, reaching 21.71 % and 40.36 %, respectively, with 0.1 g/L vanillin. This study proposed a microalgae-based detoxification and resource utilization approach for LPW, enhancing the comprehensive utilization of lignocellulosic components. The observed biomass modifications also suggested potential applications for biofuel production, contributing to the evolving landscape of sustainable biorefinery processes.
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Affiliation(s)
- Huiying Wang
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, PR China; CAS Key Laboratory of Renewable Energy, Guangzhou 510640, PR China; Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, PR China; University of Science and Technology of China, Hefei 230026, PR China
| | - Lei Qin
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, PR China; CAS Key Laboratory of Renewable Energy, Guangzhou 510640, PR China; Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, PR China.
| | - Wei Qi
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, PR China; CAS Key Laboratory of Renewable Energy, Guangzhou 510640, PR China; Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, PR China
| | - Mostafa Elshobary
- Botany and Microbiology Department, Faculty of Science, Tanta University, Tanta 31527, Egypt
| | - Wen Wang
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, PR China; CAS Key Laboratory of Renewable Energy, Guangzhou 510640, PR China; Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, PR China
| | - Pingzhong Feng
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, PR China; CAS Key Laboratory of Renewable Energy, Guangzhou 510640, PR China; Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, PR China
| | - Zhongming Wang
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, PR China; CAS Key Laboratory of Renewable Energy, Guangzhou 510640, PR China; Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, PR China
| | - Shunni Zhu
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, PR China; CAS Key Laboratory of Renewable Energy, Guangzhou 510640, PR China; Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, PR China.
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Elkaliny NE, Alzamel NM, Moussa SH, Elodamy NI, Madkor EA, Ibrahim EM, Elshobary ME, Ismail GA. Macroalgae Bioplastics: A Sustainable Shift to Mitigate the Ecological Impact of Petroleum-Based Plastics. Polymers (Basel) 2024; 16:1246. [PMID: 38732716 PMCID: PMC11085313 DOI: 10.3390/polym16091246] [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: 03/16/2024] [Revised: 04/17/2024] [Accepted: 04/26/2024] [Indexed: 05/13/2024] Open
Abstract
The surge in global utilization of petroleum-based plastics, which notably heightened during the COVID-19 pandemic, has substantially increased its harm to ecosystems. Considering the escalating environmental impact, a pivotal shift towards bioplastics usage is imperative. Exploring and implementing bioplastics as a viable alternative could mitigate the ecological burden posed by traditional plastics. Macroalgae is a potential feedstock for the production of bioplastics due to its abundance, fast growth, and high cellulose and sugar content. Researchers have recently explored various methods for extracting and converting macroalgae into bioplastic. Some of the key challenges in the production of macroalgae bioplastics are the high costs of large-scale production and the need to optimize the extraction and conversion processes to obtain high-quality bioplastics. However, the potential benefits of using macroalgae for bioplastic production include reducing plastic waste and greenhouse gas emissions, using healthier materials in various life practices, and developing a promising area for future research and development. Also, bioplastic provides job opportunities in free enterprise and contributes to various applications such as packaging, medical devices, electronics, textiles, and cosmetics. The presented review aims to discuss the problem of petroleum-based plastic, bioplastic extraction from macroalgae, bioplastic properties, biodegradability, its various applications, and its production challenges.
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Affiliation(s)
- Nehal E. Elkaliny
- Botany and Microbiology Department, Faculty of Science, Tanta University, Tanta 31527, Egypt
| | - Nurah M. Alzamel
- Department of Biology, College of Science and Humanities, Shaqra University, Shaqra 11961, Saudi Arabia
| | - Shaaban H. Moussa
- Department of Biology, College of Science and Humanities, Shaqra University, Shaqra 11961, Saudi Arabia
| | - Nour I. Elodamy
- Botany and Microbiology Department, Faculty of Science, Tanta University, Tanta 31527, Egypt
| | - Engy A. Madkor
- Botany and Microbiology Department, Faculty of Science, Tanta University, Tanta 31527, Egypt
| | - Esraa M. Ibrahim
- Botany and Microbiology Department, Faculty of Science, Tanta University, Tanta 31527, Egypt
| | - Mostafa E. Elshobary
- Botany and Microbiology Department, Faculty of Science, Tanta University, Tanta 31527, Egypt
| | - Gehan A. Ismail
- Botany and Microbiology Department, Faculty of Science, Tanta University, Tanta 31527, Egypt
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El-Sayed AIM, El-Sheekh MM, Abo-Neima SE. Mycosynthesis of selenium nanoparticles using Penicillium tardochrysogenum as a therapeutic agent and their combination with infrared irradiation against Ehrlich carcinoma. Sci Rep 2024; 14:2547. [PMID: 38291218 PMCID: PMC10827740 DOI: 10.1038/s41598-024-52982-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Accepted: 01/25/2024] [Indexed: 02/01/2024] Open
Abstract
Over the past years, the assessment of myco-fabricated selenium nanoparticles (SeNPs) properties, is still in its infancy. Herein, we have highly stable myco-synthesized SeNPs using molecularly identified soil-isolated fungus; Penicillium tardochrysogenum OR059437; (PeSeNPs) were clarified via TEM, EDX, UV-Vis spectrophotometer, FTIR and zeta potential. The therapeutic efficacy profile will be determined, these crystalline PeSeNPs were examined for antioxidant, antimicrobial, MIC, and anticancer potentials, indicating that, PeSeNPs have antioxidant activity of (IC50, 109.11 μg/mL) using DPPH free radical scavenging assay. Also, PeSeNPs possess antimicrobial potential against Penicillium italicum RCMB 001,018 (1) IMI 193,019, Methicillin-Resistant Staphylococcus aureus (MRSA) ATCC 4330 and Porphyromonas gingivalis RCMB 022,001 (1) EMCC 1699; with I.Z. diameters and MIC; 16 ± 0.5 mm and MIC 500 µg/ml, 11.9 ± 0.6 mm, 500 µg/ml and 15.9±0.6 mm, 1000 µg/ml, respectively. Additionally, TEM micrographs were taken for P. italicum treated with PeSeNPs, demonstrating the destruction of hyphal membrane and internal organelles integrity, pores formation, and cell death. PeSeNP alone in vivo and combined with a near-infrared physiotherapy lamp with an energy intensity of 140 mW/cm2 showed a strong therapeutic effect against cancer cells. Thus, PeSeNPs represent anticancer agents and a suitable photothermal option for treating different kinds of cancer cells with lower toxicity and higher efficiency than normal cells. The combination therapy showed a very large and significant reduction in tumor volume, the tumor cells showed large necrosis, shrank, and disappeared. There was also improvement in liver ultrastructure, liver enzymes, and histology, as well as renal function, urea, and creatinine.
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Affiliation(s)
- Abeer I M El-Sayed
- Botany and Microbiology Department, Faculty of Science, Damanhour University, Damanhour, 22511, Egypt
| | - Mostafa M El-Sheekh
- Botany Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt.
| | - Sahar E Abo-Neima
- Physics Department, Faculty of Science, Damanhour University, Damanhour, 22511, Egypt
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Babich O, Ivanova S, Tupitsyn A, Vladimirov A, Nikolaeva E, Tiwari A, Budenkova E, Kashirskikh E, Anokhova V, Michaud P, Sukhikh S. Study of the polysaccharide production by the microalgae C-1509 Nannochloris sp. Naumann. BIOTECHNOLOGY REPORTS (AMSTERDAM, NETHERLANDS) 2023; 40:e00818. [PMID: 38020727 PMCID: PMC10656214 DOI: 10.1016/j.btre.2023.e00818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 10/06/2023] [Accepted: 10/27/2023] [Indexed: 12/01/2023]
Abstract
Biologically active compounds, including polysaccharides isolated from microalgae, have various properties. Although Nannochloropsis spp. have the potential to produce secondary metabolites important for biotechnology, only a small part of the research on these microalgae has focused on their ability to produce polysaccharide fractions. This study aims to evaluate the physicochemical growth factors of Nannochloropsis spp. microalgae, which ensure the maximum accumulation of polysaccharides, as well as to optimize the parameters of polysaccharide extraction. The optimal nutrient medium composition was selected to maximize biomass and polysaccharide accumulation. The significance of selecting the extraction module and extraction temperature regime, as well as the cultivation conditions (temperature and active acidity value) is emphasized. Important chemical components of polysaccharides responsible for their biological activity were identified.
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Affiliation(s)
- Olga Babich
- Research and Education Center, Industrial Biotechnologies, Immanuel Kant BFU, A. Nevsky Street, 14, Kaliningrad, Russia
| | - Svetlana Ivanova
- Natural Nutraceutical Biotesting Laboratory, Kemerovo State University, Krasnaya Street 6, Kemerovo 650043, Russia
- Department of TNSMD Theory and Methods, Kemerovo State University, Krasnaya Street, 6, Kemerovo 650043, Russia
| | - Aleksandr Tupitsyn
- Laboratory of Carbon Nanomaterials, R&D Department, Kemerovo State University, Krasnaya Street, 6, Kemerovo 650043, Russia
| | - Aleksandr Vladimirov
- P.A. Chikhachev House of Scientific Collaboration, Kemerovo State University, Krasnaya Street, 6, Kemerovo 650043, Russia
| | - Elena Nikolaeva
- P.A. Chikhachev House of Scientific Collaboration, Kemerovo State University, Krasnaya Street, 6, Kemerovo 650043, Russia
| | - Archana Tiwari
- Diatom Research Laboratory, Amity Institute of Biotechnology, Amity University, Noida 201301, India
| | - Ekaterina Budenkova
- Research and Education Center, Industrial Biotechnologies, Immanuel Kant BFU, A. Nevsky Street, 14, Kaliningrad, Russia
| | - Egor Kashirskikh
- Research and Education Center, Industrial Biotechnologies, Immanuel Kant BFU, A. Nevsky Street, 14, Kaliningrad, Russia
| | - Veronika Anokhova
- Research and Education Center, Industrial Biotechnologies, Immanuel Kant BFU, A. Nevsky Street, 14, Kaliningrad, Russia
| | - Philippe Michaud
- Institut Pascal, Université Clermont Auvergne, CNRS, Clermont Auvergne INP, Clermont-Ferrand F-63000, France
| | - Stanislav Sukhikh
- Research and Education Center, Industrial Biotechnologies, Immanuel Kant BFU, A. Nevsky Street, 14, Kaliningrad, Russia
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Osman MEH, Abo-Shady AM, Gheda SF, Desoki SM, Elshobary ME. Unlocking the potential of microalgae cultivated on wastewater combined with salinity stress to improve biodiesel production. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:114610-114624. [PMID: 37863854 PMCID: PMC10663198 DOI: 10.1007/s11356-023-30370-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 10/06/2023] [Indexed: 10/22/2023]
Abstract
Microalgae have the potential as a source of biofuels due to their high biomass productivity and ability to grow in a wide range of conditions, including wastewater. This study investigated cultivating two microalgae species, Oocystis pusilla and Chlorococcus infusionum, in wastewater for biodiesel production. Compared to Kühl medium, KC medium resulted in a significant fold increase in cellular dry weight production for both O. pusilla and C. infusionum, with an increase of 1.66 and 1.39, respectively. A concentration of 100% wastewater resulted in the highest growth for O. pusilla, with an increase in biomass and lipid content compared to the KC medium. C. infusionum could not survive in these conditions. For further increase in biomass and lipid yield of O. pusilla, different total dissolved solids (TDS) levels were used. Maximum biomass and lipid productivities were achieved at 3000 ppm TDS, resulting in a 28% increase in biomass (2.50 g/L) and a 158% increase in lipid yield (536.88 mg/g) compared to KC medium. The fatty acid profile of O. pusilla cultivated on aerated wastewater at 3000 ppm TDS showed a high proportion of desirable saturated fatty acids (SFA) and monounsaturated fatty acids (MUFA) for biodiesel production. Cultivating microalgae in wastewater for biodiesel production can be cost-effective, especially for microalgae adapted to harsh conditions. It could be concluded that O. pusilla is a promising candidate for biodiesel production using wastewater as a growth medium, as it has high biomass productivity and lipid yield, and its fatty acid profile meets the standard values of American and European biodiesel standards. This approach offers a sustainable and environmentally friendly solution for producing biofuels while reducing the environmental impact of wastewater disposal.
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Affiliation(s)
- Mohamed E H Osman
- Botany Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Atef M Abo-Shady
- Botany Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Saly F Gheda
- Botany Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Samy M Desoki
- Botany Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Mostafa E Elshobary
- Botany Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt.
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Wang F, Yang R, Guo Y, Zhang C. Isolation, Characterization and Immunomodulatory Activity Evaluation of Chrysolaminarin from the Filamentous Microalga Tribonema aequale. Mar Drugs 2022; 21:md21010013. [PMID: 36662186 PMCID: PMC9861882 DOI: 10.3390/md21010013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 12/19/2022] [Accepted: 12/22/2022] [Indexed: 12/28/2022] Open
Abstract
The aim of this study is to investigate the differences in the accumulation capacity of chrysolaminarin among six Tribonema species and to isolate this polysaccharide for immunomodulatory activity evaluation. The results showed that T. aequale was the most productive strain with the highest content and productivity of chrysolaminarin, which were 17.20% (% of dry weight) and 50.91 mg/L/d, respectively. Chrysolaminarin was then extracted and isolated from this alga, and its monosaccharide composition was mainly composed of a glucose (61.39%), linked by β-D-(1→3) (main chain) and β-D-(1→6) (branch chain) glycosidic bonds, with a molecular weight of less than 6 kDa. In vitro immunomodulatory assays showed that it could activate RAW264.7 cells at a certain concentration (1000 μg/mL), as evidenced by the increased phagocytic activity and upregulated mRNA expression levels of IL-1β, IL6, TNF-α and Nos2. Moreover, Western blot revealed that this polysaccharide stimulated the phosphorylation of p-65, p-38 and JNK in NF-κB and MAPK signaling pathways. Overall, these findings provide a reference for the further development and utilization of algae-based chrysolaminarin, while also offering an in-depth understanding of the immunoregulatory mechanism.
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Affiliation(s)
- Feifei Wang
- School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, China
| | - Rundong Yang
- School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China
| | - Yuhao Guo
- School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China
| | - Chengwu Zhang
- Department of Ecology and Research Center for Hydrobiology, Jinan University, Guangzhou 510632, China
- Correspondence: ; Tel./Fax: +86-20-8522-4366
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Barakat KM, Ismail MM, Abou El Hassayeb HE, El Sersy NA, Elshobary ME. Chemical characterization and biological activities of ulvan extracted from Ulva fasciata (Chlorophyta). RENDICONTI LINCEI. SCIENZE FISICHE E NATURALI 2022. [DOI: 10.1007/s12210-022-01103-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
AbstractUlvan is a sulfated heteropolysaccharide present in the cell wall of Ulva species with a unique structure and biological potential used in various fields. Chemical characterization was carried out to determine the structure of ulvan from Ulva fasciata Delile collected from Eastern Harbor, Alexandria coast, Egypt. Ulva contains 31.5% carbohydrate with a total ulvan content of 43.66% of total carbohydrate (13.75 g/100 g DW) and sulfate content of 20.45% of ulvan. FTIR spectrum presented signals of the sulfate ester (C–O–S) and sulfate groups (S=O), typical for ulvan. GC–MS revealed that ulvan was mainly composed of rhamnose and fucose. 1H-NMR spectra of ulvan showed identical behavior of monosaccharides nature with peaks characteristic of sulfated polysaccharides at 3.2–5.3 ppm region. Scanning electron micrographs (SEM) demonstrated amorphous architecture, and the sulfated nature of polysaccharides was emphasized by EDX analysis. The extracted ulvan showed significant antimicrobial activity against human and fish pathogens as well as antifouling bacteria with minimum inhibitory concentrations (MIC) of 8 µg/mL. The extracted ulvan exhibited potent antioxidant activity with a scavenging effect of 84.93% for 2,2-diphenyl-1-picrylhydrazy free radical (DPPH). Moreover, it showed anti-arthritic properties for the first time with a maximum inhibition of 86.04% with IC50 of 43.21%, indicating their potential value for the health and food industry.
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Polysaccharides of Chinese bayberry pomace wine: Structural characteristics, antioxidant activity and influence on the bayberry wine. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.102025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Li YR, Xu S, Zhang RY, Yang MX, Liu HM, Wang XD. Structural Characterization of Polysaccharides in Waste Liquor Produced by Wet Decortication of Sesame Seeds. Front Nutr 2022; 9:940442. [PMID: 35769381 PMCID: PMC9234482 DOI: 10.3389/fnut.2022.940442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 05/26/2022] [Indexed: 11/18/2022] Open
Abstract
The wet decortication of sesame seeds produces wastewater containing diverse minerals and organic pollutants that could be valuable resources for the food industry. This investigation aimed to reclaim, purify, and characterize the polysaccharides contained in the waste liquor from the sesame decortication industry. The purified polysaccharide fractions were characterized using monosaccharide analysis, GPC (high-performance gel permeation chromatography), FT-IR (Fourier-transform infrared) spectroscopy, methylation analysis, 1D and 2D Nucleai Magnetic Resonance (NMR) analysis, and thermal analysis. Four fractions were found (SSP-1,-2,-3, -4), of which SSP-2 was proportionately the largest and most interesting. The backbone of SSP-2 is mainly composed of (1→2,4)-β-D-Xylp residues with side chains connected to the O-4 position, with many T-β-D-Galp and (1→5)-α-L-Araf residues, and fewer (1→4)-α-D-Glcp, (1→2)-α-L-Rhap, T-α-L-Araf, and (1→2)-β-D-GlcpA residues. An efficient method for removing the polysaccharides would simplify wastewater treatment while finding a use for them would benefit the sesame, food, and pharmaceutical industries.
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Affiliation(s)
- Yao-Ran Li
- College of Food Science and Technology, Henan University of Technology, Zhengzhou, China
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Shuai Xu
- College of Food Science and Technology, Henan University of Technology, Zhengzhou, China
| | - Run-Yang Zhang
- College of Food Science and Technology, Henan University of Technology, Zhengzhou, China
| | - Ming-Xuan Yang
- College of Food Science and Technology, Henan University of Technology, Zhengzhou, China
| | - Hua-Min Liu
- College of Food Science and Technology, Henan University of Technology, Zhengzhou, China
- *Correspondence: Hua-Min Liu,
| | - Xue-De Wang
- College of Food Science and Technology, Henan University of Technology, Zhengzhou, China
- Xue-De Wang,
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