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Rosliuk D, Jakstas V, Ivanauskas L, Liudvinaviciute D, Coma V, Rutkaite R. Investigation of Bioactive Complexes of Chitosan and Green Coffee Bean or Artichoke Extracts. Molecules 2023; 28:5356. [PMID: 37513230 PMCID: PMC10385370 DOI: 10.3390/molecules28145356] [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: 06/02/2023] [Revised: 07/04/2023] [Accepted: 07/08/2023] [Indexed: 07/30/2023] Open
Abstract
The formation of water-insoluble complexes between chitosan (ChS) and caffeoylquinic acid (CQ) derivatives present in artichoke (AE) and green coffee bean (GCBE) extracts was investigated by the equilibrium adsorption method. The UPLC/HPLC analysis revealed that the phenolic compounds accounted for 8.1% and 74.6% of AE and GCBE respectively, and CQ derivatives were the predominant compounds. According to the applied Langmuir adsorption model, anionic compounds present in natural extracts were adsorbed onto the active centers of ChS, i.e., primary amino groups. The driving forces of adsorption were electrostatic interactions between cationic groups of ChS and anionic compounds of natural extracts. Chromatographic analysis revealed that not only CQ derivatives, but also other phenolic compounds of natural extracts were attached to ChS. The release of adsorbed compounds into different media as well as the bioactive properties of complexes were also studied. With the immobilization of bioactives onto ChS, increased and prolonged ABTS•+ radical scavenging activity and decreased antifungal activity against Fusarium graminearum and Botrytis cinerea were observed compared to those of ChS. The findings of the current study highlight that the adsorption approach could be used to successfully prepare water-insoluble complexes of ChS and components of natural extracts with prolonged antioxidant activity.
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Affiliation(s)
- Deimante Rosliuk
- Department of Polymer Chemistry and Technology, Kaunas University of Technology, Radvilenu Rd. 19, LT-50254 Kaunas, Lithuania
| | - Valdas Jakstas
- Department of Pharmacognosy, Lithuanian University of Health Sciences, Sukileliu Ave. 13, LT-50162 Kaunas, Lithuania
- Institute of Pharmaceutical Technologies, Lithuanian University of Health Sciences, Sukileliu Ave. 13, LT-50162 Kaunas, Lithuania
| | - Liudas Ivanauskas
- Department of Analytical and Toxicological Chemistry, Lithuanian University of Health Sciences, Sukileliu Ave. 13, LT-50162 Kaunas, Lithuania
| | - Dovile Liudvinaviciute
- Department of Polymer Chemistry and Technology, Kaunas University of Technology, Radvilenu Rd. 19, LT-50254 Kaunas, Lithuania
| | - Veronique Coma
- Laboratoire de Chimie des Polymères Organiques, Université de Bordeaux, CNRS, Bordeaux INP, UMR 5629, 16 Avenue Pey-Berland, F-33600 Pessac, France
| | - Ramune Rutkaite
- Department of Polymer Chemistry and Technology, Kaunas University of Technology, Radvilenu Rd. 19, LT-50254 Kaunas, Lithuania
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Lekniute-Kyzike E, Bendoraitiene J, Navikaite-Snipaitiene V, Peciulyte L, Rutkaite R. Production of Cationic Starch-Based Flocculants and Their Application in Thickening and Dewatering of the Municipal Sewage Sludge. MATERIALS (BASEL, SWITZERLAND) 2023; 16:2621. [PMID: 37048915 PMCID: PMC10095371 DOI: 10.3390/ma16072621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 03/17/2023] [Accepted: 03/23/2023] [Indexed: 06/19/2023]
Abstract
Polymer flocculants are used to promote solid-liquid separation processes in wastewater treatment technologies, and bio-based flocculants possess many advantages over conventional synthetic polymers. Potato starch microgranules were chemically modified and mechanically sheared to produce modified starch flocculants. The effectiveness of produced cationic starch (CS) and cross-linked cationic starch (CCS) flocculants in the thickening and dewatering of surplus activated sewage sludge was evaluated and compared with that of synthetic cationic flocculants (SCFs) The flocculation efficiency of SCF, CS, and CCS in sludge thickening was determined by measuring the filtration rate of treated surplus activated sludge. Comparing the optimal dose of SCFs and CCS flocculants needed for thickening, the CCS dose was more than 10 times higher, but a wide flocculation window was determined. The impact of used flocculants on the dewatering performance of surplus activated sludge at optimal dose conditions was investigated by measuring capillary suction time. The filtration efficiencies (dewaterability) of surplus activated sludge using SCF, CS, and CCS were 69, 67, and 72%, respectively. The study results imply that mechanically processed cross-linked cationic starch has a great potential to be used as an alternative green flocculant in surplus activated sludge thickening and dewatering operations in municipal sewage sludge treatment processes.
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Diaz-Baca JA, Fatehi P. Temperature responsive crosslinked starch-kraft lignin macromolecule. Carbohydr Polym 2023; 313:120846. [PMID: 37182932 DOI: 10.1016/j.carbpol.2023.120846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 03/15/2023] [Accepted: 03/21/2023] [Indexed: 03/30/2023]
Abstract
Starch is a natural polymer with a relatively simple structure and limited solubility in water. Kraft lignin (KL) is a complex biopolymer obtained as a by-product from the delignification of wood and grasses. The present work reports developing a temperature-responsive high molecular weight macromolecule from crosslinking KL and starch (KLS). The NMR and XPS analyses quantified the changes in the aromatic and anhydroglucose units of KL and starch, observing a higher content of C-O-C bonds, which confirms the presence of glycerol ether cross-linkages between starch and KL in KLS. The rheological analysis of KLS dispersions revealed the formation of a thermo-responsive structured network. The temperature-dependent water solubility and rheological characteristics of KLS were related to the presence of hydrophilic starch chains, crosslinking degree, and physicochemical characteristics of KL. The incorporation of KL and ether crosslinks increased the thermal stability of KLS. Because of its multiple functional groups and large molecular weight (3.6-4.2 × 105 g/mol) that was arranged in an extended globular shape, KLS-5 formed a gel-like structure after a heating-cooling treatment. Overall, the results confirmed that incorporating lignin in starch would fabricate sustainable materials with potentially altered applications, such as temperature-responsive hydrogels and films.
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Navikaite‐Snipaitiene V, Rosliuk D, Almonaityte K, Rutkaite R, Vaskeliene V, Raisutis R. Ultrasound‐activated Modified Starch Microgranules for Removal of Ibuprofen from Aqueous Media. STARCH-STARKE 2022. [DOI: 10.1002/star.202100261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Vesta Navikaite‐Snipaitiene
- Department of Polymer Chemistry and Technology Kaunas University of Technology Radvilenu Rd. 19 Kaunas LT‐50254 Lithuania
| | - Deimante Rosliuk
- Department of Polymer Chemistry and Technology Kaunas University of Technology Radvilenu Rd. 19 Kaunas LT‐50254 Lithuania
| | - Karolina Almonaityte
- Department of Polymer Chemistry and Technology Kaunas University of Technology Radvilenu Rd. 19 Kaunas LT‐50254 Lithuania
| | - Ramune Rutkaite
- Department of Polymer Chemistry and Technology Kaunas University of Technology Radvilenu Rd. 19 Kaunas LT‐50254 Lithuania
| | - Vaida Vaskeliene
- Prof. Kazimieras Barsauskas Ultrasound Research Institute Kaunas University of Technology K. Barsausko St. 59 Kaunas LT‐51423 Lithuania
| | - Renaldas Raisutis
- Prof. Kazimieras Barsauskas Ultrasound Research Institute Kaunas University of Technology K. Barsausko St. 59 Kaunas LT‐51423 Lithuania
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Rosliuk D, Rutkaite R, Ivanauskas L, Jakstas V. Interaction between cross-linked cationic starch microgranules and chlorogenic acid isomers in artichoke and green coffee bean aqueous extracts. J Chromatogr B Analyt Technol Biomed Life Sci 2020; 1160:122385. [PMID: 32971368 DOI: 10.1016/j.jchromb.2020.122385] [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: 03/30/2020] [Revised: 09/03/2020] [Accepted: 09/08/2020] [Indexed: 10/23/2022]
Abstract
In the present study, the adsorption of phenolic compounds, first of all, chlorogenic acid isomers (chlorogenic, neo-chlorogenic and crypto-chlorogenic acids) predominant in the artichoke (AE) or green coffee bean (GCBE) extracts on cross-linked cationic starch having quaternary ammonium groups (CCS) has been investigated. The equilibrium adsorption studies showed that adsorption closely followed the Langmuir adsorption model, i.e. anionic substances of the extracts were interacting with quaternary ammonium groups of CCS. The UPLC-UV-MS/MS analysis showed that 8% and 17% of chlorogenic acid isomers of the total amount of adsorbed phenolics form AE and GCBE, respectively, were immobilized on CCS. The desorption study of phenolics from AE/CCS and GCBE/CCS complexes revealed that amount of desorbed AE or GCBE phenolics depended on the desorption medium. The antioxidant activity investigation showed that the immobilization of active components of extracts on CCS prevented the rapid loss of antioxidant activity. The results suppose that adsorption on modified starch technique can be successfully employed to remove important amounts of bioactive compounds from plant extracts by employing effective, sustainable and environmental friendly procedures.
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Affiliation(s)
- Deimante Rosliuk
- Department of Polymer Chemistry and Technology, Kaunas University of Technology, Radvilenu Rd. 19, LT-50254 Kaunas, Lithuania.
| | - Ramune Rutkaite
- Department of Polymer Chemistry and Technology, Kaunas University of Technology, Radvilenu Rd. 19, LT-50254 Kaunas, Lithuania
| | - Liudas Ivanauskas
- Department of Analytical and Toxicological Chemistry, Lithuanian University of Health Sciences, Sukileliu Ave. 13, LT-50162 Kaunas, Lithuania
| | - Valdas Jakstas
- Institute of Pharmaceutical Technologies, Lithuanian University of Health Sciences, Sukileliu Ave. 13, LT-50162 Kaunas, Lithuania
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Pestov A, Privar Y, Mekhaev A, Fedorets A, Ezhikova M, Kodess M, Bratskaya SY. A new approach to the green synthesis of imidazole-containing polymer ligands and cryogels. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.03.049] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Li X, Yang B, Feng L, Zheng H, Zeng G, Wu P. Research Progress of Natural Polymers in Wastewater Treatment. MINI-REV ORG CHEM 2019. [DOI: 10.2174/1570193x15666180326120151] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
With the development of industry, urbanization, increasingly stringent environmental protection
requirements, and strengthening of people’s environmental awareness, green treatment of pollutants
has become a research hotspot in the field of environmental protection. Accordingly, the study on natural
non-toxic polymers has received increasing attention from researchers. This paper aims to provide
the present research progress of natural polymers in environmental engineering, including the striking
characteristics and modification methods of the most well-known natural polymers, as well as their applications
in environmental protection field. Concluding remarks and future trends are also pointed out.
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Affiliation(s)
- Xiang Li
- School of Civil Engineering and Architecture, Chongqing University of Science and Technology, Chongqing 401331, China
| | - Baojun Yang
- Chongqing Huashu Robotics Co., Ltd., Chongqing 400714, China
| | - Li Feng
- School of Construction, Guangdong University of Technology,Guangzhou 510500, China
| | - Huaili Zheng
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing 400045, China
| | - Guoming Zeng
- School of Civil Engineering and Architecture, Chongqing University of Science and Technology, Chongqing 401331, China
| | - Pei Wu
- School of Civil Engineering and Architecture, Chongqing University of Science and Technology, Chongqing 401331, China
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Bendoraitiene J, Lekniute-Kyzike E, Rutkaite R. Biodegradation of cross-linked and cationic starches. Int J Biol Macromol 2018; 119:345-351. [DOI: 10.1016/j.ijbiomac.2018.07.155] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 07/23/2018] [Accepted: 07/24/2018] [Indexed: 10/28/2022]
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