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Tesfaye M, Gonfa Y, Tadesse G, Temesgen T, Periyasamy S. Green synthesis of silver nanoparticles using Vernonia amygdalina plant extract and its antimicrobial activities. Heliyon 2023; 9:e17356. [PMID: 37383214 PMCID: PMC10293723 DOI: 10.1016/j.heliyon.2023.e17356] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 06/14/2023] [Accepted: 06/14/2023] [Indexed: 06/30/2023] Open
Abstract
The green nanoparticles synthesis method from leaves extract revealed full an economical, sustainable and eco-friendly method. In this study, the leaf extract of Vernonia amygdalina was as a reducing and capping agent for the synthesis of silver nanoparticles (AgNPs). M/DW binary solvent was selected for its relatively better extraction performance than methanol, ethanol, distilled water and ethanol/distilled water. Furthermore, the effect of solvent ratio of M/DW, precursor concentration, ratio of silver nitrate (AgNO3) to plant extract, temperature, time and pH on the synthesis of AgNPs was carried out. Greenly synthesized Agents was confirmed using UV-Vis spectroscopy and characterized by XRD and FT-IR. Besides, its antimicrobial activities were also evaluated using agar diffusion techniques. The UV-Vis spectra showed specific Surface Plasmon Resonance (SPR) absorption peaks between 411 nm and 430 nm which revealed the formation of AgNPs during the synthesis. The nanoparticle synthesis was further confirmed by XRD analysis. Phytochemical screening test and FT-IR analysis of V. amygdalina leaves extract revealed the existence of phenolic, Tannin, saponins and flavonoid groups, which capped the nanoparticles during the synthesis. The antibacterial activities of the synthesized AgNPs were evaluated against Gram-positive bacteria (S. pyogenes and S. aureus) and Gram-negative bacteria (E. coli and P. aeruginosa) and higher inhibition zones were observed.
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Crugeira PJL, Almeida HHS, Teixeira LG, Barreiro MF. Photodynamic inactivation of Staphylococcus aureus by ecological antibacterial solutions associating LED (ʎ 450 ± 10 nm) with curcumin and olive leaf extracts. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2023; 238:112626. [PMID: 36512898 DOI: 10.1016/j.jphotobiol.2022.112626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 11/03/2022] [Accepted: 12/07/2022] [Indexed: 12/14/2022]
Abstract
Antimicrobial resistance is a problem in contemporary society, with Staphylococcus aureus standing out as a threat due to its ability to colonize, its pathogenicity, and its expression of several virulence factors. In this context, antimicrobial photodynamic inactivation (aPDI) emerges as an alternative to conventional microbicidal or microbiostatic systems, enabling numerous and successive applications without developing side effects and microbial resistance. In this context, an aPDI system against cultures of S. aureus based on a water-in-oil (W/O) emulsion incorporating curcumin as the photosensitizer (PS), with and without olive leaf extract (OLE), was developed and the antibacterial efficacy evaluated under LED activation (ʎ450 ± 10 nm) by depositing an energy density of 14 J/cm2. The produced emulsified systems showed no significant differences in the droplet size and morphology, remaining stable along the tested period of 30 days. The bacterial reduction achieved after the first aPDI application for the emulsions added with curcumin and curcumin combined with the OLE was 5 log10 CFU.mL-1 and 6 log10 CFU.mL-1, respectively, revealing a significant difference between the two groups (p < 0.0001). After the second aPDI application, an increased microbial reduction (7 log10 CFU.mL-1) was observed for both studied groups even with a low significant difference (p < 0.05). The PS loading through an emulsified system for aPDI obtained a bactericidal action against S. aureus, increased by applying two aPDI, showing a significant synergy between photodynamic inactivation, OLE delivery and antibacterial activity. In addition, the developed solutions were produced using natural products by an ecologically correct process.
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Affiliation(s)
- Pedro J L Crugeira
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal; Laboratório Associado para a Sustentabilidade e Tecnologia em Regiões de Montanha (SusTEC), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal.
| | - Heloísa H S Almeida
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal; Laboratório Associado para a Sustentabilidade e Tecnologia em Regiões de Montanha (SusTEC), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal.
| | - Liandra G Teixeira
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal; Laboratório Associado para a Sustentabilidade e Tecnologia em Regiões de Montanha (SusTEC), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal.
| | - M Filomena Barreiro
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal; Laboratório Associado para a Sustentabilidade e Tecnologia em Regiões de Montanha (SusTEC), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal.
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Musolino V, Macrì R, Cardamone A, Serra M, Coppoletta AR, Tucci L, Maiuolo J, Lupia C, Scarano F, Carresi C, Nucera S, Bava I, Marrelli M, Palma E, Gliozzi M, Mollace V. Nocellara Del Belice ( Olea europaea L. Cultivar): Leaf Extract Concentrated in Phenolic Compounds and Its Anti-Inflammatory and Radical Scavenging Activity. PLANTS (BASEL, SWITZERLAND) 2022; 12:27. [PMID: 36616158 PMCID: PMC9824270 DOI: 10.3390/plants12010027] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/07/2022] [Accepted: 12/19/2022] [Indexed: 06/17/2023]
Abstract
Olea europaea L. is a plant belonging to the Oleaceae family, widely grown around the Mediterranean Basin and its leaves are a source of phenolic compounds with antioxidant and anti-inflammatory capacity. Among these, oleuropein and luteolin-7-O-glucoside represent two major polyphenolic compounds in olive-leaf extract. Herein, a polystyrene resin was used to recover the polyphenolic fraction from the acetone-water leaf extract from Nocellara del Belice cultivar, which showed the higher level of analysed bioactive compounds, compared to Carolea cultivar. The antioxidant activity of the extract concentrated in phenolic compounds (OLECp) was evaluated through a classical assay and electron paramagnetic resonance (EPR) for DPPH and hydroxyl radicals scavenging. Thus, the anti-inflammatory activity and the potential beneficial effects in reducing lipid accumulation in an in vitro model of NAFLD using McA-RH7777 cells exposed to oleic acid (OA) were evaluated. Nile Red and Oil Red O have been used to stain the lipid accumulation, while the inflammatory status was assessed by Cytokines Bioplex Assay. OLECp (TPC: 92.93 ± 9.35 mg GAE/g, TFC: 728.12 ± 16.04 mg RE/g; 1 g of extract contains 315.250 mg of oleuropein and 17.44 mg of luteolin-7-O-glucoside) exerted a good radical scavenging capability (IC50: 2.30 ± 0.18 mg/mL) with a neutralizing power against DPPH and hydroxyl radicals, as confirmed by the decreased signal area of the EPR spectra. Moreover, OLECp at concentration of 25, 50 and 100 μg/mL counteracted the intracellular inflammatory status, as result of decreased intracellular lipid content. Our results highlighted the multiple properties and applications of an O. europaea extract concentrated in polyphenols, and the possibility to formulate novel nutraceuticals with antioxidant properties, destined to ameliorate human health.
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Affiliation(s)
- Vincenzo Musolino
- Laboratory of Pharmaceutical Biology, Department of Health Sciences, Institute of Research for Food Safety & Health IRC-FSH, University “Magna Græcia” of Catanzaro, 88100 Catanzaro, Italy
- Department of Health Sciences, Institute of Research for Food Safety & Health IRC-FSH, University “Magna Græcia” of Catanzaro, 88100 Catanzaro, Italy
| | - Roberta Macrì
- Laboratory of Pharmaceutical Biology, Department of Health Sciences, Institute of Research for Food Safety & Health IRC-FSH, University “Magna Græcia” of Catanzaro, 88100 Catanzaro, Italy
- Department of Health Sciences, Institute of Research for Food Safety & Health IRC-FSH, University “Magna Græcia” of Catanzaro, 88100 Catanzaro, Italy
| | - Antonio Cardamone
- Department of Health Sciences, Institute of Research for Food Safety & Health IRC-FSH, University “Magna Græcia” of Catanzaro, 88100 Catanzaro, Italy
| | - Maria Serra
- Department of Health Sciences, Institute of Research for Food Safety & Health IRC-FSH, University “Magna Græcia” of Catanzaro, 88100 Catanzaro, Italy
| | - Anna Rita Coppoletta
- Department of Health Sciences, Institute of Research for Food Safety & Health IRC-FSH, University “Magna Græcia” of Catanzaro, 88100 Catanzaro, Italy
| | - Luigi Tucci
- Department of Health Sciences, Institute of Research for Food Safety & Health IRC-FSH, University “Magna Græcia” of Catanzaro, 88100 Catanzaro, Italy
| | - Jessica Maiuolo
- Laboratory of Pharmaceutical Biology, Department of Health Sciences, Institute of Research for Food Safety & Health IRC-FSH, University “Magna Græcia” of Catanzaro, 88100 Catanzaro, Italy
- Department of Health Sciences, Institute of Research for Food Safety & Health IRC-FSH, University “Magna Græcia” of Catanzaro, 88100 Catanzaro, Italy
| | - Carmine Lupia
- Department of Health Sciences, Institute of Research for Food Safety & Health IRC-FSH, University “Magna Græcia” of Catanzaro, 88100 Catanzaro, Italy
| | - Federica Scarano
- Department of Health Sciences, Institute of Research for Food Safety & Health IRC-FSH, University “Magna Græcia” of Catanzaro, 88100 Catanzaro, Italy
| | - Cristina Carresi
- Department of Health Sciences, Institute of Research for Food Safety & Health IRC-FSH, University “Magna Græcia” of Catanzaro, 88100 Catanzaro, Italy
| | - Saverio Nucera
- Department of Health Sciences, Institute of Research for Food Safety & Health IRC-FSH, University “Magna Græcia” of Catanzaro, 88100 Catanzaro, Italy
| | - Irene Bava
- Department of Health Sciences, Institute of Research for Food Safety & Health IRC-FSH, University “Magna Græcia” of Catanzaro, 88100 Catanzaro, Italy
| | - Mariangela Marrelli
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, Italy
| | - Ernesto Palma
- Department of Health Sciences, Institute of Research for Food Safety & Health IRC-FSH, University “Magna Græcia” of Catanzaro, 88100 Catanzaro, Italy
| | - Micaela Gliozzi
- Department of Health Sciences, Institute of Research for Food Safety & Health IRC-FSH, University “Magna Græcia” of Catanzaro, 88100 Catanzaro, Italy
| | - Vincenzo Mollace
- Department of Health Sciences, Institute of Research for Food Safety & Health IRC-FSH, University “Magna Græcia” of Catanzaro, 88100 Catanzaro, Italy
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Adsorption Behavior of the L-Theanine onto Cation Exchange Resin ZGSPC106Na and D001SD. Foods 2022; 11:foods11223625. [PMID: 36429218 PMCID: PMC9689365 DOI: 10.3390/foods11223625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 11/09/2022] [Accepted: 11/10/2022] [Indexed: 11/16/2022] Open
Abstract
Adsorption is an important technology for the separation of different tea components. The adsorption behavior of L-theanine onto adsorbents was comprehensively studied in this paper. Among tested adsorbents, cation exchange resin ZGSPC106Na and D001SD were suitable for separating L-theanine, PVPP and PA-6 for catechins and macroporous resin HPD-400 for caffeine. Adsorption of L-theanine onto the cation resins was significantly influenced by the acidity, contact time and temperature. The adsorption behavior could be described by the pseudo-second-order rate equation and fitted to Langmuir and Freundlich models. ZGSPC106Na exhibited higher adsorption capacity, while D001SD showed higher adsorption selectivity. These might be attributed to the distinctive structure of the two resins and different ionization of the adsorbates. A method for simultaneous preparation of decaffeinated polyphenols, caffeine-enriched extract and decaffeinated L-theanine was established through successive separation on the columns fulfilled with PA-6, HPD-400 and D001SD, respectively.
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Antifungal activity of "HO21-F", a formulation based on Olea europaea plant extract, in honey bees infected with Nosema ceranae. J Invertebr Pathol 2022; 193:107801. [PMID: 35863438 DOI: 10.1016/j.jip.2022.107801] [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: 03/03/2022] [Revised: 06/28/2022] [Accepted: 07/15/2022] [Indexed: 11/23/2022]
Abstract
Nosema ceranae is a microsporidium parasite that silently affects honey bees, causing a disease called nosemosis. This parasite produces resistant spores and germinates in the midgut of honey bees, extrudes a polar tubule that injects an infective sporoplasm in the host cell epithelium, proliferates, and produces intestinal disorders that shorten honey bee lifespan. The rapid extension of this disease has been reported to be widespread among adult bees, and treatments are less effective and counterproductive weakening colonies. This work aimed to evaluate the antifungal activity of a prototype formulation based on a non-toxic plant extract (HO21-F) against N. ceranae. In laboratory, honey bees were infected artificially, kept in cages for 17 days and samples were taken at 7 and 14 days post infection (dpi). At the same time, in field conditions we evaluated the therapeutic effect of HO21-F for 28 days in naturally infected colonies. The effectiveness of the treatment has been demonstrated by a reduction of 83.6 % of the infection levels observed in laboratory conditions at concentrations of 0.5 and 1 g/L without affecting the survival rate. Besides, in-field conditions we reported a reduction of 88 % of the infection level at a concentration of 2.5 g/L, obtaining better antifungal effectiveness in comparison to other commercially available treatments. As a result, we observed that the use of HO21-F led to an increase in population size and honey production, both parameters associated with colony strength. The reported antifungal activity of HO21-F against N. ceranae, with a significant control of spore proliferation in worker bees, suggests the promising commercial application use of this product against nosemosis, and it will encourage new research studies to understand the mechanism of action, whether related to the spore-inhibition effect and/or a stimulating effect in natural response of colonies to counteract the disease.
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Purification and Identification of Flavonoid Molecules from Rosa setate x Rosa rugosa Waste Extracts and Evaluation of Antioxidant, Antiproliferative and Antimicrobial Activities. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27144379. [PMID: 35889252 PMCID: PMC9323010 DOI: 10.3390/molecules27144379] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 06/30/2022] [Accepted: 07/06/2022] [Indexed: 11/24/2022]
Abstract
Rosa setate x Rosa rugosa is widely used in the essential oil industry and generates large amounts of waste annually. The purpose of this research is the recycling of bioactive flavonoids from rose waste biomass to develop high-value products. Resin screening and adsorption/desorption dynamic analysis showed that HP20 resin was suitable to purify the flavonoids from R. setate x R. rugosa waste extracts. Under the optimal enrichment process, the product had a 10.7-fold higher purity of flavonoids with a satisfactory recovery of 82.02%. In total, 14 flavonoids were identified in the sample after purification by UHPLC-QTOF-MS. Moreover, the DPPH and ABTS assays revealed that the flavonoids-purified extracts exhibited higher antioxidant activities than the crude extracts. Meanwhile, the purified extracts presented stronger antiproliferative activity against HepG2, Caco-2, MCF-7 and A549 cell lines. The bacteriostatic effects of the purified extracts against four bacteria (Staphylococcus aureus (S. aureus), Escherichia coli (E. coli), Staphylococcus epidermidis (S. epidermidis), Pseudomonas aeruginosa (P. aeruginosa)) and yeast (Candida albicans (C. albicans)) were stronger compared with the crude extracts. It was concluded that flavonoids-enriched extracts from R. setate x R. rugosa waste had the potential to be applied in functional food and pharmaceutical industries.
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Özçelik G, Kurtulbaş Şahin E, Şahin S. Effect of ionic strength on methylene blue sorption onto macroporous resins: a comprehensive study. J DISPER SCI TECHNOL 2022. [DOI: 10.1080/01932691.2020.1844742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Gülsüm Özçelik
- Engineering Faculty, Department of Chemical Engineering, Istanbul University-Cerrahpaşa, Istanbul, Turkey
| | - Ebru Kurtulbaş Şahin
- Engineering Faculty, Department of Chemical Engineering, Istanbul University-Cerrahpaşa, Istanbul, Turkey
| | - Selin Şahin
- Engineering Faculty, Department of Chemical Engineering, Istanbul University-Cerrahpaşa, Istanbul, Turkey
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Extraction, Purification and In Vitro Antioxidant Activity Evaluation of Phenolic Compounds in California Olive Pomace. Foods 2022; 11:foods11020174. [PMID: 35053909 PMCID: PMC8775219 DOI: 10.3390/foods11020174] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 01/04/2022] [Accepted: 01/05/2022] [Indexed: 01/04/2023] Open
Abstract
Olive pomace (OP) is a valuable food byproduct that contains natural phenolic compounds with health benefits related to their antioxidant activities. Few investigations have been conducted on OP from the United States while many studies on European OP have been reported. OP of Arbequina, the most common cultivar from California, was collected and extracted by water, 70% methanol and 70% ethanol, followed by purification using macroporous absorbing resin. Results showed that the extractable total phenolic content (TPC) was 36–43 mg gallic acid equivalents (GAE)/g in pitted, drum-dried defatted olive pomace (DOP), with major contributions from hydroxytyrosol, oleuropein, rutin, verbascoside, 4-hydroxyphenyl acetic acid, hydroxytyrosol-glucoside and tyrosol-glucoside. Macroporous resin purification increased TPC by 4.6 times the ethanol crude extracts of DOP, while removing 37.33% total sugar. The antioxidant activities increased 3.7 times Trolox equivalents (TrE) by DPPH and 4.7 times TrE by ferric reducing antioxidant power (FRAP) in the resin purified extracts compared to the ethanol crude extracts. This study provided a new understanding of the extraction of the bioactive compounds from OP which could lead to practical applications as natural antioxidants, preservatives and antimicrobials in clean-label foods in the US.
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Wang N, Pei D, Liu Y, Wei J, Huang X, Di D. Preparation of highly purified oleuropein by combinative technology off line of HSCCC-PHPLC based on dual wavelength. J Food Sci 2021; 86:4457-4465. [PMID: 34519046 DOI: 10.1111/1750-3841.15903] [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: 03/26/2021] [Revised: 07/18/2021] [Accepted: 08/12/2021] [Indexed: 11/30/2022]
Abstract
Oleuropein is the main active substance in foods or functional foods produced from olive (Olea europaea L.) leaves. In the present study, the combinative technology off line of HSCCC-PHPLC based on dual wavelength was used to separate highly purified oleuropein from oleuropein extract. Response surface methodology was used to optimize the conditions of HSCCC. Furthermore, a large amount of higher purified oleuropein was obtained through HSCCC at the wavelength of 254 nm, and oleuropein with the purity greater than 98.5% was obtained by PHPLC at the wavelength of 300 nm. Finally, the purity and structure identification of highly purified oleuropein were determined by various methods and its stability was investigated. As a result, oleuropein was stable in solution, and had good stability under the condition of dark storage at 4°C within a week or under the condition of dark storage at -20°C within one year. PRACTICAL APPLICATION: In this study, an efficient method for purification and refining of oleuropein by combinative technology off line of HSCCC-PHPLC based on dual wavelength was established. Oleuropein with the purity greater than 98.5% was macro-obtained via the technology. The highly purified oleuropein could be used to control the quality of olive products.
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Affiliation(s)
- Ningli Wang
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, Gansu, P. R. China.,Qingdao Center of Resource Chemistry & New Materials, Qingdao, Shandong, P. R. China
| | - Dong Pei
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, Gansu, P. R. China.,Qingdao Center of Resource Chemistry & New Materials, Qingdao, Shandong, P. R. China
| | - Yewei Liu
- Institute of Nutrition and Food Hygiene, School of Public Health, Lanzhou University, Lanzhou, Gansu, P. R. China
| | - Jianteng Wei
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, Gansu, P. R. China.,Qingdao Center of Resource Chemistry & New Materials, Qingdao, Shandong, P. R. China
| | - Xinyi Huang
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, Gansu, P. R. China.,Qingdao Center of Resource Chemistry & New Materials, Qingdao, Shandong, P. R. China
| | - Duolong Di
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, Gansu, P. R. China.,Qingdao Center of Resource Chemistry & New Materials, Qingdao, Shandong, P. R. China
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Guerras L, Sengupta D, Martín M, El-Halwagi MM. Multilayer Approach for Product Portfolio Optimization: Waste to Added-Value Products. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2021; 9:6410-6426. [PMID: 34796044 PMCID: PMC8592024 DOI: 10.1021/acssuschemeng.1c01284] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 04/14/2021] [Indexed: 06/13/2023]
Abstract
A multistage multilayer systematic procedure has been developed for the selection of the optimal product portfolio from waste biomass as feedstock for systems involving water-energy-food nexus. It consists of a hybrid heuristic, metric-based, and optimization methodology that evaluates the economic and environmental performance of added-value products from a particular raw material. The first stage preselects the promising products. Next, a superstructure optimization problem is formulated to valorize or transform waste into the optimal set of products. The methodology has been applied within the waste to power and chemicals initiative to evaluate the best use of the biomass residue from the olive oil industry toward food, chemicals, and energy. The heuristic stage is based on the literature review to analyze the feasible products and techniques. Next, simple metrics have been developed and used to preselect products that are promising. Finally, a superstructure optimization approach is used to design the facility that processes leaves, wood chips, and olives into final products. The best technique to recover phenols from "alperujo", a wet solid waste/byproduct of the process, consists of the use of membranes, while the adsorption technique is used for the recovery of phenols from olive leaves and branches. The investment required to process waste adds up to €110.2 million for a 100 kt/yr for the olive production facility, while the profit depends on the level of integration. If the facility is attached to an olive oil production, the generated profit ranges between 14.5 MM €/yr (when the waste is purchased at prices of €249 per ton of alperujo and €6 per ton of olive leaves and branches) and 34.3 MM €/yr when the waste material is obtained for free.
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Affiliation(s)
- Lidia
S. Guerras
- Department
of Chemical Engineering, University of Salamanca, Plz. Caídos 1-5, 37008 Salamanca, Spain
| | - Debalina Sengupta
- Gas
and Fuels Research Center, Texas A&M
Engineering Experiment Station, 7607 Eastmark Drive, College
Station, Texas 77840, United States
| | - Mariano Martín
- Department
of Chemical Engineering, University of Salamanca, Plz. Caídos 1-5, 37008 Salamanca, Spain
| | - Mahmoud M. El-Halwagi
- Gas
and Fuels Research Center, Texas A&M
Engineering Experiment Station, 7607 Eastmark Drive, College
Station, Texas 77840, United States
- Artie
McFerrin Department of Chemical Engineering, Texas A&M University, 3122 TAMU, 100 Spence Street, College Station, Texas 77843, United States
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A facile macroporous resin-based method for separation of yellow and orange Monascus pigments. Food Sci Biotechnol 2021; 30:545-553. [PMID: 33936846 DOI: 10.1007/s10068-021-00892-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 01/28/2021] [Accepted: 02/15/2021] [Indexed: 11/27/2022] Open
Abstract
The yellow Monascus pigments (YMPs) named monascin and ankaflavin and the orange Monascus pigments (OMPs) named rubropunctatin and monascorubrin are two groups of bioactive components in a mixture state in the Monascus fermented products. In order to separate these two groups of bioactive pigments, a facile macroporous resin-based method was developed. The weak-polar resin CAD-40 was selected from the seven tested macroporous resins as it revealed better properties for the adsorption and desorption of the YMPs and OMPs. Then, CAD-40 resin was used for column-chromatographic separation. After eluted by 4 bed volumes of ethanol, the yellow group (monascin and ankaflavin) and the orange group (rubropunctatin and monascorubrin) were successfully separated and purified, with an increased content from 49.3% and 44.2% in the crude pigment extract to 85.2% and 83.0% in the final products, respectively. This method would be helpful for the large-scale separation and purification of Monascus pigment products with specific bioactivity.
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Liang J, Min K, Long P, Weng X, Huang Q, Chen B, Ma M. Selective adsorption of flavonoids on cerium-doped ferroferric oxide magnetic particles. J Chromatogr A 2021; 1648:462189. [PMID: 33975082 DOI: 10.1016/j.chroma.2021.462189] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 04/18/2021] [Accepted: 04/20/2021] [Indexed: 11/19/2022]
Abstract
Ce-doped Fe3O4 magnetic particles (Ce-Fe3O4 MPs) were synthesized by co-precipitation method. The coordination and adsorption properties of Ce-Fe3O4 MPs to different natural products were investigated. The results verified that the "catechol-like","maltol-like" and "acetylacetone-like" donor sets of flavonoids were the binding sites with Ce-Fe3O4 MPs. The adsorption was conformed to be pseudo-second-order model and single-layer adsorption after being characterized by adsorption kinetics and adsorption thermodynamics. The adsorption and desorption conditions were optimized. It was found that different components adsorbed on the Ce-Fe3O4 MPs surface can be selective desorbed in different solvents, which was helpful for the selective separation to adsorbed components. The Ce-Fe3O4 MPs were successfully applied to selective adsorption of compounds containing "catechol-like", "maltol-like" and "acetylacetone-like" donor sets in the crude extract of Scutellaria baicalensis Georgi and Rheum palmatum L. The results demonstrated that the magnetic solid phase extraction (MSPE) method based on Ce-Fe3O4 MPs has the advantages of high structural selectivity, high efficiency and low consumption, and can be used for efficient separation of flavonoids with specific structures from natural products.
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Affiliation(s)
- Jing Liang
- Key Laboratory of Phytochemical R&D of Hunan Province and Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research of Ministry of Education, Hunan Normal University, Changsha, 410081, China
| | - Ke Min
- Key Laboratory of Phytochemical R&D of Hunan Province and Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research of Ministry of Education, Hunan Normal University, Changsha, 410081, China
| | - Piao Long
- Key Laboratory of Phytochemical R&D of Hunan Province and Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research of Ministry of Education, Hunan Normal University, Changsha, 410081, China
| | - Xuqian Weng
- Key Laboratory of Phytochemical R&D of Hunan Province and Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research of Ministry of Education, Hunan Normal University, Changsha, 410081, China
| | - Qun Huang
- Key Laboratory of Phytochemical R&D of Hunan Province and Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research of Ministry of Education, Hunan Normal University, Changsha, 410081, China
| | - Bo Chen
- Key Laboratory of Phytochemical R&D of Hunan Province and Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research of Ministry of Education, Hunan Normal University, Changsha, 410081, China.
| | - Ming Ma
- Key Laboratory of Phytochemical R&D of Hunan Province and Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research of Ministry of Education, Hunan Normal University, Changsha, 410081, China
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13
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Affiliation(s)
- Yi Liu
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Lanzhou, PR China
| | - Yongfeng Liu
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Lanzhou, PR China
| | - Duolong Di
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Lanzhou, PR China
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14
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Tian J, Wang X, Shi Q, Xiang X, Su C, Xie Y, Jin S, Huang R, Song C. Isolation and Purification of Kudinosides from Kuding Tea by Semi-Preparative HPLC Combined with MCI-GEL Resin. CURR ANAL CHEM 2020. [DOI: 10.2174/1573411015666191031153352] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Kuding tea, a Traditional Chinese drink, has a history of thousands of years
in China. Triterpenoid saponins in Kuding tea are regarded as one of the major functional ingredients.
Objective:
The aim of this paper was to establish separation progress for the isolation and purification
of five triterpenoid saponins (kudinoside A, C, D, F, G) from Kuding tea.
Methods:
Nine types of resins, including seven macroporous resins and two MCI-GEL resins, were
firstly used for purifying triterpenoid saponins by the adsorption and desorption tests. Further dynamic
adsorption/desorption experiments were carried out to obtain the optimal parameters for the five
targeted saponins. Then the purification of five triterpenoid saponins (kudinoside A, C, D, F, G) was
completed by semi-preparative high-performance liquid chromatography (semi-pHPLC).
Results:
As of optimized results, the HP20SS MCI-GEL was selected as the optimal one. The data
also showed that 65.24 mg of refined extract including 7.04 mg kudinoside A, 3.52 mg kudinoside C,
4.04 mg kudinoside D, 4.13 mg kudinoside F, and 34.45 mg kudinoside G, could be isolated and purified
from 645.90 mg of crude extract in which the content of five saponins was 81.51% and the average
recovery reached 69.76%. The final contents of five saponins increased 6.91-fold as compared
to the crude extract.
Conclusion:
The established separation progress was highly efficient, making it a potential approach
for the large-scale production in the laboratory and providing several markers of triterpenoid saponins
for quality control of Kuding tea or its processing products.
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Affiliation(s)
- Ji Tian
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, Hubei, China
| | - Xuanyuan Wang
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, Hubei, China
| | - Qingxin Shi
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, Hubei, China
| | - Xingliang Xiang
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, Hubei, China
| | - Chao Su
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, Hubei, China
| | - Yun Xie
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, Hubei, China
| | - Shuna Jin
- Key Laboratory of Environment and Health, Ministry of Education and Ministry of Environmental Protection; and State Key Laboratory of Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Rongzeng Huang
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, Hubei, China
| | - Chengwu Song
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, Hubei, China
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15
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Che Zain MS, Lee SY, Teo CY, Shaari K. Adsorption and Desorption Properties of Total Flavonoids from Oil Palm ( Elaeis guineensis Jacq.) Mature Leaf on Macroporous Adsorption Resins. Molecules 2020; 25:molecules25040778. [PMID: 32054137 PMCID: PMC7070522 DOI: 10.3390/molecules25040778] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Revised: 12/29/2019] [Accepted: 01/08/2020] [Indexed: 12/31/2022] Open
Abstract
Three different macroporous resins (XAD7HP, DAX-8, and XAD4) were evaluated for their adsorption and desorption properties in preparing flavonoid-enriched oil palm (Elaeis guineensis Jacq.) leaf extract. The influences of initial concentration, solution pH, contact time, and desorption solvent (ethanol) concentration were determined by static sorption/desorption methods. The optimal condition for adsorption of flavonoids was achieved when the solution of the extract was adjusted to pH 7, reaching equilibrium after 1440 min at 298 K. The adsorption process was well described by a pseudo-second-order kinetics model, while the adsorption isotherm data fitted well with a Freundlich model. The adsorption by each resin was via an exothermic and physical adsorption process. Based on the static experiment results, XAD7HP was found to be the most appropriate adsorbent, while 80% ethanol was the best solvent for desorbent. Further evaluation of its dynamic adsorption and desorption characteristics on a packed glass column showed that XAD7HP could enrich the OPL total flavonoid content by a 3.57-fold increment. Moreover, UHPLC–UV/PDA and UHPLC–MS/MS analysis revealed that apigenin and luteolin derivatives were selectively adsorbed by XAD7HP. Additionally, both the crude OPL extract and the flavonoid-enriched fraction have good DPPH and NO free radical scavenging activities. Multiple interactions between the flavonoids and cross-linked polymeric XAD7HP resin through van der Waals forces and hydrogen bonding described the sorption processes. Therefore, by utilizing this method, the flavonoid-enriched fraction from crude OPL extract could be used as a potential bioactive ingredient in nutraceutical and pharmaceutical applications at minimum cost with optimum efficiency.
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Affiliation(s)
- Mohamad Shazeli Che Zain
- Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia; (M.S.C.Z.); (S.Y.L.)
| | - Soo Yee Lee
- Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia; (M.S.C.Z.); (S.Y.L.)
| | - Chian Ying Teo
- Department of Pharmaceutical Chemistry, School of Pharmacy, International Medical University, 57000 Kuala Lumpur, Malaysia
- Correspondence: (C.Y.T.); (K.S.); Tel.: +60-3-27317742 (C.Y.T.); +60-3-8942148 (K.S.)
| | - Khozirah Shaari
- Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia; (M.S.C.Z.); (S.Y.L.)
- Correspondence: (C.Y.T.); (K.S.); Tel.: +60-3-27317742 (C.Y.T.); +60-3-8942148 (K.S.)
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16
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Cavaca LA, López-Coca IM, Silvero G, Afonso CA. The olive-tree leaves as a source of high-added value molecules: Oleuropein. BIOACTIVE NATURAL PRODUCTS 2020. [DOI: 10.1016/b978-0-12-817903-1.00005-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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17
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Recovery of polyphenols from water using Zr-based metal-organic frameworks and their nanocomposites with graphene nanoplatelets. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2019.06.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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18
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19
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Li D, Zhuo Y, Zhang Q, Zhang L, Zhang S, Lv Y, Li C, Cui L, Guan X, Yang L, Wang X. Purification of 3, 4-dihydroxyphenylethyl alcohol glycoside from Sargentodoxa cuneata (Oliv.) Rehd. et Wils. and its protective effects against DSS-induced colitis. Sci Rep 2019; 9:3222. [PMID: 30824734 PMCID: PMC6397144 DOI: 10.1038/s41598-019-38926-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 01/10/2019] [Indexed: 12/26/2022] Open
Abstract
Sargentodoxa cuneata is a tropical plant used in traditional Chinese medicine to treat intestinal inflammation. In this study, 3, 4-dihydroxyphenylethyl alcohol glycoside (DAG) was purified from the stem of S. cuneata using macroporous resins and its bioactivity was also investigated. The adsorption/desorption of DAG on macroporous resins was investigated systematically. HPD300 resin was selected as the most suitable medium for DAG purification. Further dynamic absorption/desorption experiments on the HPD300 column were conducted to obtain the optimal parameters. To obtain more than 95% DAG, a second stage procedure was developed to purify the DAG using SiliaSphere C18 with 8% v/v acetonitrile through elution at low pressure. Further investigation showed that DAG pretreatment significantly reversed the shortening of colon length, the increase in the disease activity index (DAI) scores and histological damage in the colon. Moreover, DAG greatly increased SOD and GPx activities, significantly decreased MPO and MDA activities and reduced the levels of pro-inflammatory cytokines in the colon. Free radical scavenging activities of DAG were assessed using DPPH, with an IC50 value of 17.03 ug/mL. Additionally, DAG suppressed ROS and proinflammatory cytokine production in LPS-stimulated RAW 264.7 macrophages by suppressing activation of the ERK1/2 and NF-κB pathways. The results were indicative of the antioxidant and anti-inflammatory properties of DAG. When viewed together, these findings indicated that DAG can be used to expand future pharmacological research and to potentially treat colitis.
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Affiliation(s)
- Dihua Li
- Tianjin Institute of Acute Abdominal Diseases of Integrated Traditional Chinese and Western Medicine, Tianjin, 300100, China
| | - Yuzhen Zhuo
- Tianjin Institute of Acute Abdominal Diseases of Integrated Traditional Chinese and Western Medicine, Tianjin, 300100, China
| | - Qi Zhang
- Tianjin Institute of Acute Abdominal Diseases of Integrated Traditional Chinese and Western Medicine, Tianjin, 300100, China
| | - Lanqiu Zhang
- Tianjin Institute of Acute Abdominal Diseases of Integrated Traditional Chinese and Western Medicine, Tianjin, 300100, China
| | - Shukun Zhang
- Tianjin Institute of Acute Abdominal Diseases of Integrated Traditional Chinese and Western Medicine, Tianjin, 300100, China
| | - Yuanshan Lv
- Tianjin Institute of Acute Abdominal Diseases of Integrated Traditional Chinese and Western Medicine, Tianjin, 300100, China
| | - Caixia Li
- Tianjin Institute of Acute Abdominal Diseases of Integrated Traditional Chinese and Western Medicine, Tianjin, 300100, China
| | - Lihua Cui
- Tianjin Institute of Acute Abdominal Diseases of Integrated Traditional Chinese and Western Medicine, Tianjin, 300100, China
| | - Xin Guan
- Tianjin Institute of Acute Abdominal Diseases of Integrated Traditional Chinese and Western Medicine, Tianjin, 300100, China
| | - Lei Yang
- Tianjin Institute of Acute Abdominal Diseases of Integrated Traditional Chinese and Western Medicine, Tianjin, 300100, China.
| | - Ximo Wang
- Tianjin Institute of Acute Abdominal Diseases of Integrated Traditional Chinese and Western Medicine, Tianjin, 300100, China. .,Department of Surgery, Tianjin Nankai Hospital, Tianjin, 300100, China.
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20
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Zagklis DP, Paraskeva CA. Isolation of organic compounds with high added values from agro-industrial solid wastes. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2018; 216:183-191. [PMID: 28476307 DOI: 10.1016/j.jenvman.2017.04.083] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Revised: 03/31/2017] [Accepted: 04/25/2017] [Indexed: 06/07/2023]
Abstract
Phenols are organic compounds with high antioxidant activity. Occurring mainly in plants, where they act as pigments or even as part of defense mechanisms against insects and herbivores. Given the positive impact on on human health, their isolation and purification from agricultural products is of particular interest for the production of nutritional, pharmaceutical and cosmetics supplements. In our study different materials rich in phenolic compounds were used, in order to separate the phenolic content and maximum condensation using physicochemical methods such as solvent extraction, filtration through membranes, adsorption/desorption on resins and vacuum distillation. The materials tested were solid wastes from winery, cocoa residuals, olive leaves, etc. The first step for the treatment was the extraction of phenolic content using water-ethanol solutions which was initially optimized. Then, sequential membrane filtration of the extracts by Ultrafiltration membranes, Nanofiltration and Reverse Osmosis was performed to separate the contained compounds, based on their molecular weight. To remove non-polar compounds, with similar molecular weights with phenols, methods of adsorption/desorption on specific resins were developed, in order final ethanolic solutions rich in phenolic compounds to be obtained. Finally, the ethanol was removed by vacuum evaporation at low temperatures. The purification of olive leaf phenols is illustrated in details in the present work. The final obtained concentrate, was a rich phenolic concentrate and contained 98 g/L phenols in gallic acid equivalents. This technique, after modification, can be applied to a variety of phenol-rich byproducts, allowing the operation of phenol separation plant adjustable to local agricultural activities.
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Affiliation(s)
- Dimitris P Zagklis
- Institute of Chemical Engineering Sciences, Foundation for Research and Technology, Hellas (FORTH/ICE-HT), Stadiou Str., Platani, GR26504, Patras, Greece; Department of Chemical Engineering, University of Patras, GR 26504, Rion, Patras, Greece
| | - Christakis A Paraskeva
- Institute of Chemical Engineering Sciences, Foundation for Research and Technology, Hellas (FORTH/ICE-HT), Stadiou Str., Platani, GR26504, Patras, Greece; Department of Chemical Engineering, University of Patras, GR 26504, Rion, Patras, Greece.
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21
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Liu L, Ren J, Zhang Y, Liu X, Ouyang J. Simultaneously separation of xylo-oligosaccharide and lignosulfonate from wheat straw magnesium bisulfite pretreatment spent liquor using ion exchange resin. BIORESOURCE TECHNOLOGY 2018; 249:189-195. [PMID: 29040854 DOI: 10.1016/j.biortech.2017.09.207] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2017] [Revised: 09/28/2017] [Accepted: 09/30/2017] [Indexed: 06/07/2023]
Abstract
For wheat straw, an ideal bio-refinery process is that all three major components of biomass could be efficiently utilized to make high value chemicals, MBSP could directly convert the hemicelluloses and lignin into xylo-oligosaccharides and lignosulfonate. However, these value-added compounds still present in spent liquor and thus should be isolated as an individual product. In present work, a simple and efficient ion exchange process was developed for separating xylo-oligosaccharides and lignosulfonate simultaneously from spent liquor. D354 resin was selected for its high adsorption capacity of magnesium lignosulfonate and remarkable selectivity. 93.09% of XOS and 98.03% of lignosulfonate were recovered from the treated spent liquor in a fixed bed column with D354 resin. Overall, 1 L of MBSP spent liquor could coproduce 9.5 g XOS and 74 g lignosulfonate. These results offer an opportunity for complete and effective utilization of biomass by a novel integrated process coupling of MBSP and ion-exchange process.
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Affiliation(s)
- Lei Liu
- College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, People's Republic of China; School of Biology and Environment, Nanjing Polytechnic Institute, Nanjing 210048, People's Republic of China
| | - Jiwei Ren
- College of Forestry, Nanjing Forestry University, Nanjing 210037, People's Republic of China
| | - Yitong Zhang
- College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, People's Republic of China
| | - Xinlu Liu
- College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, People's Republic of China
| | - Jia Ouyang
- College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, People's Republic of China; Key Laboratory of Forest Genetics and Biotechnology of the Ministry of Education, Nanjing Forestry University, Nanjing 210037, China.
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22
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Khemakhem I, Abdelhedi O, Trigui I, Ayadi MA, Bouaziz M. Structural, antioxidant and antibacterial activities of polysaccharides extracted from olive leaves. Int J Biol Macromol 2018; 106:425-432. [DOI: 10.1016/j.ijbiomac.2017.08.037] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 07/18/2017] [Accepted: 08/04/2017] [Indexed: 12/28/2022]
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23
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Cavaca LAS, Afonso CAM. Oleuropein: A Valuable Bio-Renewable Synthetic Building Block. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701136] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Lídia A. S. Cavaca
- Research Institute for Medicines (iMed.ULisboa); Faculty of Pharmacy; Universidade de Lisboa; Av. Prof. Gama Pinto 1649-003 Lisboa Portugal
| | - Carlos A. M. Afonso
- Research Institute for Medicines (iMed.ULisboa); Faculty of Pharmacy; Universidade de Lisboa; Av. Prof. Gama Pinto 1649-003 Lisboa Portugal
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24
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Highly efficient recovery of biophenols onto graphene oxide nanosheets: Valorisation of a biomass. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.09.046] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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25
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Şahin S, Bilgin M. Selective adsorption of oleuropein from olive (Olea europaea) leaf extract using macroporous resin. CHEM ENG COMMUN 2017. [DOI: 10.1080/00986445.2017.1365062] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Selin Şahin
- Department of Chemical Engineering, Faculty of Engineering, Istanbul University, Istanbul, Turkey
| | - Mehmet Bilgin
- Department of Chemical Engineering, Faculty of Engineering, Istanbul University, Istanbul, Turkey
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26
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27
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Processing, Valorization and Application of Bio-Waste Derived Compounds from Potato, Tomato, Olive and Cereals: A Review. SUSTAINABILITY 2017. [DOI: 10.3390/su9081492] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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28
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Deka H, Saikia MD, Srivastava HK. Adsorption of Various Monoterpenoids on the Surface of Graphene and Nitrogen-Doped Graphene: A DFT Based Study. ChemistrySelect 2017. [DOI: 10.1002/slct.201700844] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hemen Deka
- Department of Chemistry; Arya Vidyapeeth College; Guwahati 781 016, Assam India
| | - Monali D. Saikia
- Department of Chemistry; Arya Vidyapeeth College; Guwahati 781 016, Assam India
| | - Hemant K. Srivastava
- Department of Chemistry; Indian Institute of Technology Guwahati; Guwahati- 781039, Assam India
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29
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Khemakhem I, Ahmad-Qasem MH, Catalán EB, Micol V, García-Pérez JV, Ayadi MA, Bouaziz M. Kinetic improvement of olive leaves' bioactive compounds extraction by using power ultrasound in a wide temperature range. ULTRASONICS SONOCHEMISTRY 2017; 34:466-473. [PMID: 27773270 DOI: 10.1016/j.ultsonch.2016.06.010] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 05/20/2016] [Accepted: 06/10/2016] [Indexed: 05/22/2023]
Abstract
In this study, the effect of temperature and ultrasonic application on extraction kinetics of polyphenols from dried olive leaf was investigated. Conventional (CVE) and ultrasonic-assisted extraction (UAE) were performed at 10, 20, 30, 50 and 70°C using water as solvent. Extracts were characterized by measuring the total phenolic content, the antioxidant capacity and the oleuropein content (HPLC-DAD/MS-MS). Moreover, Naik's model was used to mathematically describe the extraction kinetics. The experimental results showed that phenolic extraction was faster in UAE (ultrasonic-assisted extraction) than in CVE (conventional extraction), being extraction kinetics satisfactorily described using Naik model (include VAR>98%). Besides, the total phenolic content, the antioxidant capacity and the oleuropein content were significantly (p<0.05) improved by increasing the temperature in both CVE and UAE. Oleuropein content reached 6.57±0.18 being extracted approximately 88% in the first minute for UAE experiments.
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Affiliation(s)
- Ibtihel Khemakhem
- Laboratoire d'analyses, valorisations et sécurités alimentaires, Ecole Nationale d'Ingénieurs de Sfax (ENIS), Université de Sfax, BP 1173, 3038 Sfax, Tunisia; Laboratoire d'Electrochimie et Environnement, Ecole Nationale d'Ingénieurs de Sfax (ENIS), Université de Sfax, BP 1173, 3038 Sfax, Tunisia
| | - Margarita Hussam Ahmad-Qasem
- Grupo de Análisis y Simulación de Procesos Agroalimentarios (ASPA), Departamento de Tecnología de Alimentos, Universitat Politècnica de València, Valencia 46022, Spain
| | | | - Vicente Micol
- Instituto de Biología Molecular y Celular, Universidad Miguel Hernández, Elche 03202, Spain
| | - Jose Vicente García-Pérez
- Grupo de Análisis y Simulación de Procesos Agroalimentarios (ASPA), Departamento de Tecnología de Alimentos, Universitat Politècnica de València, Valencia 46022, Spain
| | - Mohamed Ali Ayadi
- Laboratoire d'analyses, valorisations et sécurités alimentaires, Ecole Nationale d'Ingénieurs de Sfax (ENIS), Université de Sfax, BP 1173, 3038 Sfax, Tunisia
| | - Mohamed Bouaziz
- Laboratoire d'Electrochimie et Environnement, Ecole Nationale d'Ingénieurs de Sfax (ENIS), Université de Sfax, BP 1173, 3038 Sfax, Tunisia.
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30
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Preparative Separation and Purification of the Total Flavonoids in Scorzonera austriaca with Macroporous Resins. Molecules 2016; 21:molecules21060768. [PMID: 27304948 PMCID: PMC6273629 DOI: 10.3390/molecules21060768] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2016] [Revised: 06/05/2016] [Accepted: 06/08/2016] [Indexed: 11/18/2022] Open
Abstract
The use of macroporous resins for the separation and purification of total flavonoids to obtain high-purity total flavonoids from Scorzonera austriaca was studied. The optimal conditions for separation and purification of total flavonoids in S. austriaca with macroporous resins were as follows: D4020 resin columns were loaded with crude flavonoid extract solution, and after reaching adsorptive saturation, the columns were eluted successively with 5 bed volumes (BV) of water, 5 BV of 5% (v/v) aqueous ethanol and 5 BV of 30% (v/v) aqueous ethanol at an elute flow rate of 2 BV·h−1. Total flavonoids were obtained from the 30% aqueous ethanol eluate by vacuum distillation recovery. The content of flavonoid compounds in the total flavonoids was 93.5%, which represents an improvement by about 150%. In addition, five flavonoid compounds in the product were identified as 2″-O-β-d-xylopyranosyl isoorientin, 6-C-α-l-arabipyranosyl orientin, orientin, isoorientin and vitexin by LC-ESI-MS analysis and internal standard methods. The results in this study could represent a method for the large-scale production of total flavonoids from S. austriaca.
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31
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Jiang X, Yang W, Zhou C, Lu K, Lin C. Separation and Purification of Polyphenols from Pericarpium Granati Using Macroporous Resins and Evaluation of its Anti-Streptococcus mutans Activity in vitro. ACTA ACUST UNITED AC 2016. [DOI: 10.3923/biotech.2016.86.95] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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32
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Li H, Liu Y, Jin H, Liu S, Fang S, Wang C, Xia C. Separation of vitexin-4″-O-glucoside and vitexin-2″-O-rhamnoside from hawthorn leaves extracts using macroporous resins. J Chromatogr B Analyt Technol Biomed Life Sci 2015; 1007:23-9. [DOI: 10.1016/j.jchromb.2015.10.043] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Revised: 10/23/2015] [Accepted: 10/24/2015] [Indexed: 12/11/2022]
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Preparative Purification of Liriodendrin from Sargentodoxa cuneata by Macroporous Resin. BIOMED RESEARCH INTERNATIONAL 2015; 2015:861256. [PMID: 26236742 PMCID: PMC4508389 DOI: 10.1155/2015/861256] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Revised: 06/23/2015] [Accepted: 06/24/2015] [Indexed: 11/17/2022]
Abstract
The preparative purification of liriodendrin from Sargentodoxa cuneata using macroporous resin combined with crystallization process was evaluated. The properties of adsorption/desorption of liriodendrin on eight macroporous resins were investigated systematically. X-5 resin was selected as the most suitable medium for liriodendrin purification. The adsorption of liriodendrin on X-5 resin fitted well with the pseudo-second-order kinetic model and Langmuir isotherm model. Dynamic adsorption/desorption tests were performed using a glass column packed with X-5 resin to optimize the separation process of liriodendrin. After one treatment with X-5 resin, the content of liriodendrin in the product was increased 48.73-fold, from 0.85% to 41.42%, with a recovery yield of 88.9%. 97.48% liriodendrin was obtained by further crystallization and determined by HPLC. The purified product possessed strong antioxidant activity. In conclusion, purification of liriodendrin might expend its further pharmacological researches and further applications in pharmacy.
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Adsorption behaviors for oleuropein from olive leaves extracts by porous materials with carbon nanotubes. Colloid Polym Sci 2015. [DOI: 10.1007/s00396-015-3643-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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35
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Recovery of (−)-epigallocatechingallate (EGCG) from aqueous solution by selective adsorption onto spent coffee grounds. Eur Food Res Technol 2015. [DOI: 10.1007/s00217-015-2472-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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36
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Bioactivity-guided systematic extraction and purification supported by multitechniques for sugarcane flavonoids and anthocyanins. FOOD AND BIOPRODUCTS PROCESSING 2015. [DOI: 10.1016/j.fbp.2014.08.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Deka H, Saikia MD. Structural and thermodynamic factors on adsorptive interaction of certain flavonoids onto polymeric resins and activated carbon. Colloids Surf A Physicochem Eng Asp 2015. [DOI: 10.1016/j.colsurfa.2015.01.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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38
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Yang P, Zhou M, Zhou C, Wang Q, Zhang F, Chen J. Separation and purification of both tea seed polysaccharide and saponin from camellia cake extract using macroporous resin. J Sep Sci 2015; 38:656-62. [PMID: 25491912 DOI: 10.1002/jssc.201401123] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2014] [Revised: 11/30/2014] [Accepted: 11/30/2014] [Indexed: 11/11/2022]
Abstract
A novel method to separate and purify tea seed polysaccharide and tea seed saponin from camellia cake extract by macroporous resin was developed. Among four kinds of resins (AB-8, NKA-9, XDA-6, and D4020) tested, AB-8 macroporous resin possessed optimal separating capacity for the two substances and thus was selected for the separation, in which deionized water was used to elute tea seed polysaccharide, 0.25% NaOH solution to remove the undesired pigments, and 90% ethanol to elute tea seed saponin. Further dynamic adsorption/desorption experiments on AB-8 resin-based column chromatography were conducted to obtain the optimal parameters. Under optimal dynamic adsorption and desorption conditions, 18.7 and 11.8% yield of tea seed polysaccharide and tea seed saponin were obtained with purities of 89.2 and 96.0%, respectively. The developed method provides a potential approach for the large-scale production of tea seed polysaccharide and tea seed saponin from camellia cake.
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Affiliation(s)
- Pengjie Yang
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan, China
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Liu Y, Liu Y, Huo T, Wu X, Wei J, Pei D, Di D, Wang J, Sun Y. Effect of the ionic liquid group in novel interpenetrating polymer networks on the adsorption properties for oleuropein from aqueous solutions. NEW J CHEM 2015. [DOI: 10.1039/c5nj01475a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Combining the advantages of ionic liquids with interpenetrating polymer networks, a novel ionic liquid modified adsorbent (PS/PVIm) was prepared and then used to enrich oleuropein to investigate the interactive forces between the adsorbent and oleuropein.
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Affiliation(s)
- Yi Liu
- Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- P. R. China
| | - Yongfeng Liu
- Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- P. R. China
| | - Ting Huo
- State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials
- Lanzhou University of Technology and School of Material Science and Engineering
- Lanzhou University of Technology
- Lanzhou 730050
- P. R. China
| | - Xiaoyu Wu
- Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- P. R. China
| | - Jianteng Wei
- Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- P. R. China
| | - Dong Pei
- Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- P. R. China
| | - Duolong Di
- Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- P. R. China
| | - Jianxiong Wang
- Department of Pharmacy
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Yanjun Sun
- Department of Pharmacy
- Lanzhou University
- Lanzhou 730000
- P. R. China
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Zhang J, Huang X, Sun X, Pei D, Di D. Efficient method for the screening and identification of anti-diabetic components in the leaves of Olea europaea L. NEW J CHEM 2014. [DOI: 10.1039/c4nj00074a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This paper proposes a novel strategy for screening anti-diabetic compounds, using HSCCC coupled with post-column on-line α-amylase evaluation.
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Affiliation(s)
- Jia Zhang
- Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 73000, China
| | - Xinyi Huang
- Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 73000, China
| | - Xiaoming Sun
- Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 73000, China
| | - Dong Pei
- Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 73000, China
- Center of Resource Chemical and New Material
| | - Duolong Di
- Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 73000, China
- Center of Resource Chemical and New Material
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Ye H, Chen Z, Liu Y, Lou S, Di D. Comparison of the adsorption behavior of flavonoids on three macroporous adsorption resins modified with hydrogen-bond groups. J Appl Polym Sci 2013. [DOI: 10.1002/app.40188] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Helin Ye
- Key Laboratory of Chemistry of Northwestern Plant Resources; Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences; Lanzhou 730000 People's Republic of China
- Key Laboratory for Natural Medicine of Gansu Province; Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences; Lanzhou 730000 People's Republic of China
- Graduate University; Chinese Academy of Sciences; Beijing 100049 People's Republic of China
| | - Zhenbin Chen
- State Key Laboratory of Gansu Advanced Nonferrous Metal Materials; Lanzhou University of Technology; Lanzhou 730050 China
| | - Yongfeng Liu
- Key Laboratory of Chemistry of Northwestern Plant Resources; Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences; Lanzhou 730000 People's Republic of China
- Key Laboratory for Natural Medicine of Gansu Province; Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences; Lanzhou 730000 People's Republic of China
- Graduate University; Chinese Academy of Sciences; Beijing 100049 People's Republic of China
| | - Song Lou
- Key Laboratory of Chemistry of Northwestern Plant Resources; Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences; Lanzhou 730000 People's Republic of China
- Key Laboratory for Natural Medicine of Gansu Province; Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences; Lanzhou 730000 People's Republic of China
- Graduate University; Chinese Academy of Sciences; Beijing 100049 People's Republic of China
| | - Duolong Di
- Key Laboratory of Chemistry of Northwestern Plant Resources; Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences; Lanzhou 730000 People's Republic of China
- Key Laboratory for Natural Medicine of Gansu Province; Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences; Lanzhou 730000 People's Republic of China
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Liu Y, Bai Q, Liu Y, Di D, Guo M, Zhao L, Li J. Simultaneous purification of tea polyphenols and caffeine from discarded green tea by macroporous adsorption resins. Eur Food Res Technol 2013. [DOI: 10.1007/s00217-013-2073-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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43
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Peralbo-Molina Á, Luque de Castro MD. Potential of residues from the Mediterranean agriculture and agrifood industry. Trends Food Sci Technol 2013. [DOI: 10.1016/j.tifs.2013.03.007] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Ding P, Liao X, Shi B. Adsorption chromatography separation of the flavonols kaempferol, quercetin and myricetin using cross-linked collagen fibre as the stationary phase. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2013; 93:1575-1583. [PMID: 23152137 DOI: 10.1002/jsfa.5924] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2012] [Revised: 08/24/2012] [Accepted: 10/23/2012] [Indexed: 06/01/2023]
Abstract
BACKGROUND Kaempferol, quercetin and myricetin are typical flavonols that are most concentrated in many medicinal herbs. However, the separation of these flavonols is very challenging due to their similar molecular structures. In the present investigation, the chromatographic separation of the flavonols kaempferol, quercetin and myricetin was performed using glutaraldehyde cross-linked collagen fibre (GCF) as the stationary phase. RESULTS Kaempferol, quercetin and myricetin could be completely separated from each other by the GCF column by using gradient elution with different solutions of aqueous ethanol (100% to 70%) and 50% acetone. When the chromatographic separation was carried out at a flow rate of 0.75 bed volume h(-1) with a sample loading of 30 mg 7 g(-1) GCF, the purity of kaempferol, quercetin and myricetin was 98.17%, 93.81% and 81.76%, respectively. The separation resolution was influenced by column length, flow rate and sample loading amount. The separation efficiency of GCF was not obviously reduced after applications had been repeated five times. In the fifth repeated application, the purity of the recovered kaempferol, quercetin and myricetin was still higher than 97%, 94% and 78%, respectively. CONCLUSION GCF is a promising adsorbent for use as a stationary phase in the chromatographic separation of flavonols from their mixtures.
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Affiliation(s)
- Pingping Ding
- Department of Chemical Engineering, Sichuan University, Chengdu, 610065, China
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Lou S, Di D. Adsorption features of flavonoids on macroporous adsorption resins functionalized with ionic liquids. Chemphyschem 2012; 13:3330-9. [PMID: 22811393 DOI: 10.1002/cphc.201200238] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2012] [Revised: 06/09/2012] [Indexed: 11/08/2022]
Abstract
A series of macroporous adsorption resins (MARs) with novel structures is synthesized via Friedel-Crafts catalyzed reaction. The adsorption kinetics of the synthetic resins with respect to the purification effect is systematically investigated by means of the response surface methodology (RSM). The kinetic data cannot be fitted to the classical model because it does not take multicompartments and desorption rates into consideration. A new multicompartment louver-tide theory is thus developed considering that adsorption is an indefinite dynamic equilibrium process, which can be divided into innumerable ingredients with different desorption rates. This theory produces much better fits to the experimental data and provides a quantitative explanation with multicompartments and adsorption/desorption rates.
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Affiliation(s)
- Song Lou
- Key Laboratory of Chemistry of North-western, Plant Resources, Lanzhou Institute of Chemical Physics, Tianshui middle Road 18, 730000, Lanzhou, China
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Xynos N, Papaefstathiou G, Psychis M, Argyropoulou A, Aligiannis N, Skaltsounis AL. Development of a green extraction procedure with super/subcritical fluids to produce extracts enriched in oleuropein from olive leaves. J Supercrit Fluids 2012. [DOI: 10.1016/j.supflu.2012.03.014] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Enrichment and purification of deoxyschizandrin and γ-schizandrin from the extract of Schisandra chinensis fruit by macroporous resins. Molecules 2012; 17:3510-23. [PMID: 22430118 PMCID: PMC6268366 DOI: 10.3390/molecules17033510] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2012] [Revised: 03/07/2012] [Accepted: 03/12/2012] [Indexed: 12/20/2022] Open
Abstract
In present study, the performance and separation characteristics of 21 macroporous resins for the enrichment and purification of deoxyschizandrin and γ-schizandrin, the two major lignans from Schisandra chinensis extracts, were evaluated. According to our results, HPD5000, which adsorbs by the molecular tiers model, was the best macroporous resin, offering higher adsorption and desorption capacities and higher adsorption speed for deoxyschizandrin and γ-schizandrin than other resins. Columns packed with HPD5000 resin were used to perform dynamic adsorption and desorption tests to optimize the technical parameters of the separation process. The results showed that the best adsorption time is 4 h, the rate of adsorption is 0.85 mL/min (4 BV/h) and the rate of desorption is 0.43 mL/min (2 BV/h). After elution with 90% ethanol, the purity of deoxy-schizandrin increased 12.62-fold from 0.37% to 4.67%, the purity of γ-schizandrin increased 15.8-fold from 0.65% to 10.27%, and the recovery rate was more than 80%.
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