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Batinić P, Jovanović A, Stojković D, Čutović N, Cvijetić I, Gašić U, Carević T, Zengin G, Marinković A, Marković T. A novel source of biologically active compounds - The leaves of Serbian herbaceous peonies. Saudi Pharm J 2024; 32:102090. [PMID: 38766273 PMCID: PMC11101739 DOI: 10.1016/j.jsps.2024.102090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 04/26/2024] [Indexed: 05/22/2024] Open
Abstract
In order to gain further insight into how various extraction techniques (maceration, microwave-, and ultrasound-assisted extractions) affect the chemical profile and biological activities of leaf extracts from Paeonia tenuifolia L., Paeonia peregrina Mill., and Paeonia officinalis L., this research was performed. The targeted chemical characterization of the extracts was achieved using the Ultra-High-Performance-Liquid-Chromatography-Linear-Trap-Mass-Spectrometry OrbiTrap instrumental technique, while Fourier Transform Infrared Spectroscopy was conducted to investigate the structural properties of the examined leaf extracts. According to the results, the species P. officinalis, Božurna locality as the origin of the plant material, and microwave-assisted extraction produced the maximum polyphenol yield, (491.9 ± 2.7 mg gallic acid equivalent (GAE)/mL). The ethanolic extracts exhibited moderate antioxidant activity as evaluated by DPPH (2,2-diphenyl-1-picrylhydrazyl) and phosphomolybdenum tests. With MIC values of 0.125 mg/mL, the leaf extracts produced by ultrasound-assisted extraction and maceration (Deliblato sands and Bogovo gumno) had the best antibacterial activity against Pseudomonas aeruginosa and Salmonella Typhimurium. Ultrasound-assisted extraction has proven to produce the most effective antimicrobial agents. Inhibitory potential towards glucosidase, amylase, cholinesterases, and tyrosinase was evaluated in enzyme inhibition assays and molecular docking simulations. Results show that leaves of P. tenuifolia L. obtained by ultrasound-assisted extraction had the highest acetylcholinesterase and butyrylcholinesterase inhibitory activity. Namely, the complexity of the polyphenol structures, the extraction method, the used locality, and the different mechanisms of the reactions between bioactives from leaf extracts and other components (free radicals, microorganisms, and enzymes) are the main factors that influence the results of the antioxidant tests, as well as the antibacterial and enzyme-inhibitory activities of the extracts. Hydroxymethyl-phenyl pentosyl-hexoside and acetyl-hydroxyphenyl-hexoside were the first time identified in the leaf extract of the Paeonia species. Due to their proven biological activities and the confirmed existence of bioactive compounds, leaf extracts may find use in foodstuffs, functional foods, and pharmaceutical products.
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Affiliation(s)
- Petar Batinić
- Institute for Medicinal Plant Research, ''Dr. Josif Pančić'', Tadeuša Košćuška 1 11000, Belgrade, Serbia
| | - Aleksandra Jovanović
- University of Belgrade, Institute for the Application of Nuclear Energy INEP, Banatska 31b 11080, Belgrade – Zemun, Serbia
| | - Dejan Stojković
- University of Belgrade, Institute for Biological Research “Siniša Stanković”, National Institute of the Republic of Serbia, Bulevar Despota Stefana 142 11060, Belgrade, Serbia
| | - Natalija Čutović
- Institute for Medicinal Plant Research, ''Dr. Josif Pančić'', Tadeuša Košćuška 1 11000, Belgrade, Serbia
| | - Ilija Cvijetić
- University of Belgrade, Faculty of Chemistry, Students Square 10-13 11000, Belgrade, Serbia
| | - Uroš Gašić
- University of Belgrade, Institute for Biological Research “Siniša Stanković”, National Institute of the Republic of Serbia, Bulevar Despota Stefana 142 11060, Belgrade, Serbia
| | - Tamara Carević
- University of Belgrade, Institute for Biological Research “Siniša Stanković”, National Institute of the Republic of Serbia, Bulevar Despota Stefana 142 11060, Belgrade, Serbia
| | - Gökhan Zengin
- Selcuk University, Science Faculty, Department of Biology, 42130, Konya, Turkey
| | - Aleksandar Marinković
- University of Belgrade, Faculty of Technology and Metallurgy, Karnegijeva 4 11060, Belgrade, Serbia
| | - Tatjana Marković
- Institute for Medicinal Plant Research, ''Dr. Josif Pančić'', Tadeuša Košćuška 1 11000, Belgrade, Serbia
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Yameen M, Asghar F, Adeel S, Haider MZ, Özomay M, Aftab M, Mia R. Enhancing wool dyeing with clove bud ( Syzygium aromaticum) based natural dye via microwave treatment using a central composite design. Sci Prog 2023; 106:368504231215593. [PMID: 37993993 PMCID: PMC10666708 DOI: 10.1177/00368504231215593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2023]
Abstract
This research investigates the viability of using Syzygium aromaticum (clove) as a natural dye for wool yarn through the application of microwave treatment and optimization using central composite design (CCD). As concerns grow over the environmental impact of synthetic dyes and their detrimental disposal in water bodies, the search for eco-friendly alternatives becomes imperative to revolutionize the textile industry. Microwave-assisted extraction of the colorant from clove powder is explored as an efficient and sustainable method, minimizing solvent usage and energy consumption compared to conventional techniques. To enhance colorfastness properties while eliminating the need for toxic mordants, green alternatives such as Al, Fe, and tannic acid, combined with plant phenolics from red sumac, pomegranate rind, and weld, are employed. According to the analysis of CCD, the higher color strength value 18.1653 was achieved using pH = 3, time = 50 min, temperature = 70 °C, and salt concentration = 1.5 g/100 mL. The optimized dyeing conditions also showed a maximum level of colorfastness properties of 5 for light, 5 for wash, 5 for dry rubbing, and 4 for wet rubbing. The findings from Fourier-transform infrared spectroscopy and scanning electron microscopy analyses provide valuable insights into the chemical and morphological changes induced by microwave treatment and dyeing with clove extract. The results affirm the presence of eugenol as a potential active molecule responsible for the captivating color of clove flower buds, validating its suitability as a natural dye source for wool. This study highlights the promising potential of microwave-assisted extraction and plant-based biomolecules as innovative and environmentally friendly approaches in natural dyeing, paving the way for a more sustainable future in the textile industry. Embracing these eco-friendly practices allows the textile sector to reduce its ecological footprint and contribute to a cleaner and greener environment. Further research and implementation of these techniques can foster a more harmonious coexistence with nature, ensuring a healthier ecosystem for all.
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Affiliation(s)
- Muhammad Yameen
- Department of Biochemistry, Government College University Faisalabad, Faisalabad, Pakistan
| | - Fariha Asghar
- Department of Biochemistry, Government College University Faisalabad, Faisalabad, Pakistan
| | - Shahid Adeel
- Department of Applied Chemistry, Government College University Faisalabad, Faisalabad, Pakistan
| | | | - Meral Özomay
- Department of Textile Engineering, Marmara University, Istanbul, Turkey
| | - Muhammad Aftab
- Department of Statistics, Government College University Faisalabad, Faisalabad, Pakistan
| | - Rony Mia
- Department of Textile Engineering, National Institute of Textile Engineering and Research, University of Dhaka, Dhaka, Bangladesh
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Optimization of Extraction of Natural Antimicrobial Pigments Using Supercritical Fluids: A Review. Processes (Basel) 2022. [DOI: 10.3390/pr10102111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
It has become increasingly popular to replace chemically synthesized compounds with natural counterparts mostly found in natural sources, such as natural pigments. The conventional extraction processes for these compounds are limited by the toxicity and flammability of the solvents. To obtain pure extracts, it is always a longer process that requires several steps. Supercritical fluid extraction (SFE) is a cutting-edge green technology that is continuously increasing and expanding its fields of application, with benefits such as no waste produced, shorter extraction time, automation, and lower solvent consumption. The SFE of natural pigments has high potential in food, textiles, cosmetics, and pharmaceuticals; there are a number of other applications that can benefit from the SFE technique of natural pigments. The pigments that are extracted via SFE have a high potential for application and sustainability because of their biological and antimicrobial properties as well as low environmental risk. This review provides an update on the SFE technique, specifically as it pertains to the optimization of health-promoting pigments. This review focuses on antimicrobial pigments and the high efficiency of SFE in extracting pure antimicrobial pigments. In addition, the optimal conditions, biological activities, and possible applications of each category are explained.
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Brudzyńska P, Sionkowska A, Grisel M. Plant-Derived Colorants for Food, Cosmetic and Textile Industries: A Review. MATERIALS (BASEL, SWITZERLAND) 2021; 14:3484. [PMID: 34201459 PMCID: PMC8269454 DOI: 10.3390/ma14133484] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/17/2021] [Accepted: 06/19/2021] [Indexed: 11/16/2022]
Abstract
This review provides a report on properties and recent research advances in the application of plant-derived colorants in food, cosmetics and textile materials. The following colorants are reviewed: Polyphenols (anthocyanins, flavonol-quercetin and curcumin), isoprenoids (iridoids, carotenoids and quinones), N-heterocyclic compounds (betalains and indigoids), melanins and tetrapyrroles with potential application in industry. Future aspects regarding applications of plant-derived colorants in the coloration of various materials are also discussed.
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Affiliation(s)
- Patrycja Brudzyńska
- Department of Biomaterials and Cosmetics Chemistry, Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarin 7 Street, 87-100 Torun, Poland;
| | - Alina Sionkowska
- Department of Biomaterials and Cosmetics Chemistry, Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarin 7 Street, 87-100 Torun, Poland;
| | - Michel Grisel
- Chemistry Department, UNILEHAVRE, FR 3038 CNRS, URCOM EA3221, Normandie University, 76600 Le Havre, France;
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Aziz SB, Nofal MM, Ghareeb HO, Dannoun EMA, Hussen SA, Hadi JM, Ahmed KK, Hussein AM. Characteristics of Poly(vinyl Alcohol) (PVA) Based Composites Integrated with Green Synthesized Al 3+-Metal Complex: Structural, Optical, and Localized Density of State Analysis. Polymers (Basel) 2021; 13:polym13081316. [PMID: 33923856 PMCID: PMC8073073 DOI: 10.3390/polym13081316] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 04/06/2021] [Accepted: 04/13/2021] [Indexed: 12/18/2022] Open
Abstract
The influence of dispersing Al-metal complex on the optical properties of PVA was investigated using UV–visible spectroscopy. Polymer composite films with various Al3+-complex amounts in the PVA matrix were arranged by solution casting technique by means of distilled water as a widespread solvent. The formation of Al3+-metal complex was verified through Ultraviolet–visible (UV-Vis) and Fourier-transform infrared spectroscopy (FTIR) examinations. The addition of Al-complex into the polymer matrix led to the recovery of the optical parameters such as dielectric constant (εr and εi) and refractive index (n). The variations of real and imaginary parts of complex dielectric constant as a function of photon wavelength were studied to calculate localized charge density values (N/m*), high-frequency dielectric constant, relaxation time, optical mobility, optical resistivity, and plasma angular frequency (ωp) of electrons. In proportion with Al3+-complex content, the N/m* values were amplified from 3.68 × 1055 kg−1 m−3 to 109 × 1055 kg−1 m−3. The study of optical parameters may find applications within optical instrument manufacturing. The optical band gap was determined from Tauc’s equation, and the type of electronic transition was specified. A remarkable drop in the optical band gap was observed. The dispersion of static refractive index (no) of the prepared composites was analyzed using the theoretical Wemple–DiDomenico single oscillator model. The average oscillator energy (Eo) and oscillator dispersion energy (Ed) parameters were estimated.
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Affiliation(s)
- Shujahadeen B. Aziz
- Hameed Majid Advanced Polymeric Materials Research Lab., Physics Department, College of Science, University of Sulaimani, Qlyasan Street, Sulaimani 46001, Iraq; (S.A.H.); (K.K.A.); (A.M.H.)
- Department of Civil Engineering, College of Engineering, Komar University of Science and Technology, Sulaimani 46001, Iraq
- Correspondence:
| | - Muaffaq M. Nofal
- Department of Mathematics and General Sciences, Prince Sultan University, P.O. Box 66833, Riyadh 11586, Saudi Arabia;
| | - Hewa O. Ghareeb
- Chemistry Department, College of Science, University of Sulaimani, Qlyasan Street, Sulaimani 46001, Iraq;
| | - Elham M. A. Dannoun
- Associate Director of General Science Department, Woman Campus, Prince Sultan University, P.O. Box 66833, Riyadh 11586, Saudi Arabia;
| | - Sarkawt A. Hussen
- Hameed Majid Advanced Polymeric Materials Research Lab., Physics Department, College of Science, University of Sulaimani, Qlyasan Street, Sulaimani 46001, Iraq; (S.A.H.); (K.K.A.); (A.M.H.)
| | - Jihad M. Hadi
- Department of Medical Laboratory of Science, College of Health Sciences, University of Human Development, Sulaimani 46001, Iraq;
| | - Khayal K. Ahmed
- Hameed Majid Advanced Polymeric Materials Research Lab., Physics Department, College of Science, University of Sulaimani, Qlyasan Street, Sulaimani 46001, Iraq; (S.A.H.); (K.K.A.); (A.M.H.)
| | - Ahang M. Hussein
- Hameed Majid Advanced Polymeric Materials Research Lab., Physics Department, College of Science, University of Sulaimani, Qlyasan Street, Sulaimani 46001, Iraq; (S.A.H.); (K.K.A.); (A.M.H.)
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UV protection and antibacterial treatment of cellulosic fibre (cotton) using chitosan and onion skin dye. Carbohydr Polym 2021; 257:117612. [PMID: 33541643 DOI: 10.1016/j.carbpol.2020.117612] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 12/28/2020] [Accepted: 12/30/2020] [Indexed: 11/17/2022]
Abstract
Interest in environment-friendly textile processing techniques has been augmenting in recent years. Natural dyes are environment friendly, low toxic and less allergenic owing to the existence of large number of structurally diverse active compounds which makes natural colourants promising options for the development of antimicrobial and ultra-violet (UV) protective textiles. The purpose of the present study was to investigate the effect of biopolymer and dyeing treatment with natural dye on the functional properties (antibacterial and UV protection) of cotton fabric and the assessment was done using standard test method. It was found that the chitosan treated onion skin dyed cotton fabric showed 97.20 percent and 98.03 % reduction in the growth of E. coli and S. aureus bacteria respectively. The chitosan treated dyed cotton fabric showed the higher ultra-violet protection factor (UPF) value (84.80) as compared to alum treated dyed cotton fabric (66.70) depicting that the chitosan treated dyed cotton fabric provided more ultraviolet protection than the alum treated dyed fabric.
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Brza MA, Aziz SB, Anuar H, Ali F, Dannoun EMA, Mohammed SJ, Abdulwahid RT, Al-Zangana S. Tea from the drinking to the synthesis of metal complexes and fabrication of PVA based polymer composites with controlled optical band gap. Sci Rep 2020; 10:18108. [PMID: 33093604 PMCID: PMC7581529 DOI: 10.1038/s41598-020-75138-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 10/12/2020] [Indexed: 02/07/2023] Open
Abstract
In the present study black tea extract (BTE) solution which is familiar for drinking was used to prepare cerium metal-complexes (Ce(III)-complex). The prepared Ce(III)-complex was characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and UV–Vis spectroscopy. The results indicate that BTE solution is a novel green coordination chemistry approach for the synthesis of metal complexes. The outcomes signify that coordination occurs between cerium cations and polyphenols. The synthesis of metal-complexes with superior absorption performance in the visible region is a challenge for optoelectronic device applications. The suspended Ce(III)-complex in distilled water was mixed with poly (vinyl alcohol) (PVA) polymer to fabricate PVA/ Ce(III)-complex composites with controlled optical properties. The PVA/Ce(III)-complexes composite films were characterized by FTIR, XRD, and UV–Vis spectroscopy. The XRD findings confirms the amorphous structure for the synthesized Ce(III)-complexes. The addition of Ce(III)-complex into the PVA host polymer led to the growth of polymer composites with controllable small optical band gaps. It is shown by the FTIR spectra of the composite films that the functional groups of the host PVA have a vigorous interaction with the Ce(III)-complex. The XRD deconvolution on PVA composites reveals the amorphous phase enlargement with increasing Ce(III)-complex concentration. It is indicated in the atomic force microscopy (AFM) that the surface roughness in the doped PVA films increases with the increase of the Ce(III)-complex. There is a decrease in absorption edge from 5.7 to 1.7 eV. It becomes possible to recognize the type of electron transition by studying both the Tauc's model and optical dielectric loss (ɛi) parameter.
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Affiliation(s)
- M A Brza
- Department of Manufacturing and Materials Engineering, Faculty of Engineering, International Islamic University of Malaysia, Kuala Lumpur, Gombak, Malaysia
| | - Shujahadeen B Aziz
- Prof. Hameeds Advanced Polymeric Materials Research Lab, Department of Physics, College of Science, University of Sulaimani, Qlyasan Street, Sulaimani, Kurdistan Regional Government, Iraq. .,Department of Civil Engineering, College of Engineering, Komar University of Science and Technology, Sulaimani, 46001, Kurdistan Regional Government, Iraq.
| | - H Anuar
- Department of Manufacturing and Materials Engineering, Faculty of Engineering, International Islamic University of Malaysia, Kuala Lumpur, Gombak, Malaysia
| | - Fathilah Ali
- Department of Biotechnology Engineering, Faculty of Engineering, International Islamic University of Malaysia, 53100, Kuala Lumpur, Gombak, Malaysia
| | - Elham M A Dannoun
- General Science Department, Woman Campus, Prince Sultan University, P. O. Box 66833, Riyadh, 11586, Saudi Arabia
| | - Sewara J Mohammed
- Department of Chemistry, College of Science, University of Sulaimani, Qlyasan Street, Sulaimani, Kurdistan Regional Government, Iraq
| | - Rebar T Abdulwahid
- Prof. Hameeds Advanced Polymeric Materials Research Lab, Department of Physics, College of Science, University of Sulaimani, Qlyasan Street, Sulaimani, Kurdistan Regional Government, Iraq.,Department of Physics, College of Education, University of Sulaimani, Old Campus, Sulaimani, 46001, Kurdistan Regional Government, Iraq
| | - Shakhawan Al-Zangana
- Department of Physics, College of Education, University of Garmian, Kalar, 46021, Kurdistan Regional Government, Iraq
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Wang J, Tang B, Bai W, Lu X, Liu Y, Wang X. Deodorizing for fiber and fabric: Adsorption, catalysis, source control and masking. Adv Colloid Interface Sci 2020; 283:102243. [PMID: 32854016 DOI: 10.1016/j.cis.2020.102243] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 08/13/2020] [Accepted: 08/14/2020] [Indexed: 01/27/2023]
Abstract
Textile with deodorizing properties not only keeps the clothing smell fresh, but also is beneficial toward improving the level of indoor air quality, especially when the fibrous materials are used for buildings and furniture. This review summarizes and discusses the recent progress in developing smart textile with deodorizing property. In particular, the key deodorizing methods including enhanced adsorption, catalytic decomposition, source control and masking are brought to light. The theoretical concepts, mechanisms and the latest fabrication methods along with the deodorizing efficiency are discussed. Moreover, the current limitations of these methods are underlined and some recommendations for future research strategies in terms of deodorizing performance, textile engineering, fiber types and treatment impact on fiber mechanical properties are proposed. This review provides the latest state-of-the-art achievements in the field of deodorizing methods of textile, which will be a valuable platform for researchers and decision makers to design and develop novel functional textile products.
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Affiliation(s)
- Jinfeng Wang
- Deakin University, Institute for Frontier Materials, Geelong/Melbourne, Victoria 3216, Australia; National Engineering Laboratory for Advanced Yarn and Fabric Formation and Clean Production, Wuhan Textile University, Wuhan 430073, China
| | - Bin Tang
- Deakin University, Institute for Frontier Materials, Geelong/Melbourne, Victoria 3216, Australia; National Engineering Laboratory for Advanced Yarn and Fabric Formation and Clean Production, Wuhan Textile University, Wuhan 430073, China.
| | - Wenli Bai
- Deakin University, Institute for Frontier Materials, Geelong/Melbourne, Victoria 3216, Australia
| | - Xi Lu
- School of Chemistry and Pharmaceutial Engineering, Qilu University of Technology, Jinan 250353, China
| | - Yu'an Liu
- Jiangsu Bohn Environmental Engineering Complete Equipment Co Ltd, Nanjing 210017, China
| | - Xungai Wang
- Deakin University, Institute for Frontier Materials, Geelong/Melbourne, Victoria 3216, Australia; National Engineering Laboratory for Advanced Yarn and Fabric Formation and Clean Production, Wuhan Textile University, Wuhan 430073, China.
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Green Dyeing and Antibacterial Treatment of Hemp Fabrics Using Punica granatum Peel Extracts. INT J POLYM SCI 2020. [DOI: 10.1155/2020/6084127] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In this study, the dyeing performance and antibacterial properties of pomegranate (Punica granatum) peel extracts were investigated, when applied to hemp fabric. A tannin-rich natural dye was extracted using water at 100°C. As the antibacterial agent was sensitive to temperature, it was extracted using Soxhlet apparatus with methanol at 55°C. The color strength (K/S) values were investigated and found to increase in line with the dye concentration, dyeing time, and temperature. Optimal dyeing of the hemp fabric was achieved when applying 6% w/v of extract at 80°C for 60 min. This produced a yellowish-brown appearance. The dyed fabrics were rated as good to excellent for color fastness against washing, water, sea water, and perspiration. The dyed fabrics were next finished with the antibacterial agent extracted from the peel and tested for activity against Staphylococcus aureus (Gram positive) and Klebsiella pneumoniae (Gram negative), using the AATCC-100 (percentage reduction) test. The fabric was demonstrated to be 99.99% effective against Staphylococcus aureus, and this was conserved across 20 wash cycles.
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Zhao Z, Cai W, Song L, Mu X, Hu Y. Comprehensive Property Investigation of Mold Inhibitor Treated Raw Cotton and Ramie Fabric. MATERIALS 2020; 13:ma13051105. [PMID: 32121662 PMCID: PMC7085025 DOI: 10.3390/ma13051105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 02/10/2020] [Accepted: 02/27/2020] [Indexed: 12/17/2022]
Abstract
At present, research rarely focuses on side effects of the use of mold inhibitors on raw cotton and ramie fabric. Four different mold inhibitors (dimethyl fumarate (DMF), ethyl p-hydroxybenzoate (EHB), propyl p-hydroxybenzoate (PHB), and calcium sorbate (CS)) were used to treat raw cotton and ramie fabric through a dipping method. The optical properties, wettability, thermal conductivity, thermal stability, and combustion properties of treated cotton and ramie samples have been investigated. The reflectance of UV light was improved by the addition of mold inhibitors. In addition, the presence of EHB, PHB, and CS improved the wettability of raw cotton and ramie fabric. It was found that thermal conductivity was slightly increased, influencing the heat insulation effect of the fabrics. Since the additives are flammable, the presence of DMF, EHB, and PHB caused an increase in pHRR and THR for combustion of cotton samples. This addition of CS caused a decrease in pHRR and THR of cotton due to the flame retardancy of CS. This comprehensive investigation of the properties of raw cotton and ramie fabrics treated with these materials should provide a basis for the choice of mold inhibitors.
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Affiliation(s)
- Zhixin Zhao
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China; (W.C.); (L.S.)
- School of Chemistry and Materials Science, University of Science and Technology of China, 96 Jinzhai Road, Hefei 230026, China;
| | - Wei Cai
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China; (W.C.); (L.S.)
| | - Lei Song
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China; (W.C.); (L.S.)
| | - Xiaowei Mu
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China; (W.C.); (L.S.)
- Correspondence: (X.M.); (Y.H.)
| | - Yuan Hu
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China; (W.C.); (L.S.)
- Correspondence: (X.M.); (Y.H.)
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Assessment of the Use of Natural Extracted Dyes and Pancreatin Enzyme for Dyeing of Four Natural Textiles: HPLC Analysis of Phytochemicals. Processes (Basel) 2020. [DOI: 10.3390/pr8010059] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
In the present study, four natural textiles (cotton, linen, wool, and silk) were dyed with 14 naturally extracted dyes, and pancreatin enzyme was used in the dyeing process. The effects of pancreatin enzyme and its buffer on naturally dyed textile samples were evaluated. Two concentrations of pancreatin enzyme and buffer were used as pretreatments for dyed textiles. Proteinic fabrics showed the highest relative color strength (RCS) values of 137.23% and 132.2% when the pancreatin enzyme was applied on wool and silk dyed with pomegranate skin and bloodroot at concentrations A and B, respectively. Linen fiber dyed with catechu tree showed the highest total color difference (TCD) values with buffer (6.83) and pancreatin enzyme A (5.7) and B (6.3). This shows that there were no side effects of the pancreatin enzyme on the studied dyed textiles. By high-performance liquid chromatography (HPLC) analysis, the root extract from madder showed the presence of salicylic acid (1758.91 mg/kg extract), quercetin (844.23 mg/kg extract), ellagic acid (784.86 mg/kg extract) and benzoic acid (582.68 mg/kg extract) as main compounds. In cochineal extract the main compounds were rutin (37.732 mg/kg extract), kampherol (1915.98 mg/kg extract), myricetin (809.97 mg/kg extract), quercetin (496.76 mg/kg extract) and salicylic acid (193.87 mg/kg extract).
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Chitosan/gallnut tannins composite fiber with improved tensile, antibacterial and fluorescence properties. Carbohydr Polym 2019; 226:115311. [DOI: 10.1016/j.carbpol.2019.115311] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 07/17/2019] [Accepted: 09/09/2019] [Indexed: 12/20/2022]
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13
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Brza MA, Aziz SB, Anuar H, Al Hazza MHF. From Green Remediation to Polymer Hybrid Fabrication with Improved Optical Band Gaps. Int J Mol Sci 2019; 20:E3910. [PMID: 31405255 PMCID: PMC6721056 DOI: 10.3390/ijms20163910] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Revised: 08/04/2019] [Accepted: 08/08/2019] [Indexed: 11/17/2022] Open
Abstract
The present work proposed a novel approach for transferring high-risk heavy metals tometal complexes via green chemistry remediation. The method of remediation of heavy metals developed in the present work is a great challenge for global environmental sciences and engineering because it is a totally environmentally friendly procedure in which black tea extract solution is used. The FTIR study indicates that black tea contains enough functional groups (OH and NH), polyphenols and conjugated double bonds. The synthesis of copper complex was confirmed by the UV-vis, XRD and FTIR spectroscopic studies. The XRD and FTIR analysis reveals the formation of complexation between Cu metal complexes and Poly (Vinyl Alcohol) (PVA) host matrix. The study of optical parameters indicates that PVA-based hybrids exhibit a small optical band gap, which is close to inorganic-based materials. It was noted that the absorption edge shifted to lower photon energy. When Cu metal complexes were added to PVA polymer, the refractive index was significantly tuned. The band gap shifts from 6.2 eV to 1.4 eV for PVA incorporated with 45 mL of Cu metal complexes. The nature of the electronic transition in hybrid materials was examined based on the Taucs model, while a close inspection of the optical dielectric loss was also performed in order to estimate the optical band gap. The obtained band gaps of the present work reveal that polymer hybrids with sufficient film-forming capability could be useful to overcome the drawbacks associated with conjugated polymers. Based on the XRD results and band gap values, the structure-property relationships were discussed in detail.
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Affiliation(s)
- M A Brza
- Department of Manufacturing and Materials Engineering, Faculty of Engineering, International Islamic University of Malaysia, Kuala Lumpur, Gombak 53100, Malaysia
- Advanced Polymeric Materials Research Lab., Department of Physics, College of Science, University of Sulaimani, Qlyasan Street, Sulaimani 46001, Iraq
| | - Shujahadeen B Aziz
- Advanced Polymeric Materials Research Lab., Department of Physics, College of Science, University of Sulaimani, Qlyasan Street, Sulaimani 46001, Iraq.
- Komar Research Center (KRC), Komar University of Science and Technology, Sulaimani 46001, Iraq.
| | - H Anuar
- Department of Manufacturing and Materials Engineering, Faculty of Engineering, International Islamic University of Malaysia, Kuala Lumpur, Gombak 53100, Malaysia
| | - Muataz Hazza F Al Hazza
- Department of Manufacturing and Materials Engineering, Faculty of Engineering, International Islamic University of Malaysia, Kuala Lumpur, Gombak 53100, Malaysia
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14
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Nam C, Xiang C. Natural dyeing application of used coffee grounds as a potential resource. ACTA ACUST UNITED AC 2019. [DOI: 10.1080/17543266.2019.1640291] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Changhyun Nam
- Apparel, Merchandising, and Design Program, Department of Apparel, Events, and Hospitality Management, Iowa State University,Ames, USA
| | - Chunhui Xiang
- Apparel, Merchandising, and Design Program, Department of Apparel, Events, and Hospitality Management, Iowa State University,Ames, USA
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15
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Kim JE, Kang MJ, Choi JY, Park JJ, Lee MR, Song BR, Kim HR, Park JW, Choi HJ, Bae SJ, Hwang DY. Regulation of gastrointestinal hormones during laxative activity of gallotannin-enriched extract isolated from Galla Rhois in loperamide-induced constipation of SD rats. Lab Anim Res 2018; 34:223-231. [PMID: 30671109 PMCID: PMC6333618 DOI: 10.5625/lar.2018.34.4.223] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 12/03/2018] [Accepted: 12/04/2018] [Indexed: 11/22/2022] Open
Abstract
Regulation of gastrointestinal hormones have been reported in animal models for constipation undergoing laxative therapy when administered herbal products. We undertook to investigate whether the laxative activity of gallotannin-enriched extracts isolated from Galla Rhois (GEGR) affects the regulation of gastrointestinal hormones, by examining the concentration of four hormones and the activation of their receptors in the loperamide (Lop)-induced constipation model. Stool parameters, including number, weight and water content, were significantly recovered in the Lop+GEGR treated group, relative to the Lop+vehicle treated group; however, food intake and water consumption were maintained at a constant level. Also, a similar recovery was detected for thickness of mucosa, muscle and flat luminal surface in the Lop+GEGR treated group. Furthermore, concentration of the four gastrointestinal hormones evaluated, namely, cholecystokinin (CCK), gastrin (GAS), somatostatin (SS) and motilin (MTL), were lower in the Lop+vehicle treated group than the No treated group, but were remarkably enhanced in the Lop+GEGR treated group. Moreover, the downstream signaling pathway of MTL and SS receptors were recovered after GEGR administration. Results of the present study therefore indicate that the laxative effects of GEGR treatment may be tightly related with the regulation of gastrointestinal hormones in the Lop-induced constipation model.
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Affiliation(s)
- Ji Eun Kim
- Department of Biomaterials Science, College of Natural Resources & Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang, Korea
| | - Mi Ju Kang
- Department of Biomaterials Science, College of Natural Resources & Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang, Korea
| | - Jun Young Choi
- Department of Biomaterials Science, College of Natural Resources & Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang, Korea
| | - Jin Ju Park
- Department of Biomaterials Science, College of Natural Resources & Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang, Korea
| | - Mi Rim Lee
- Department of Biomaterials Science, College of Natural Resources & Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang, Korea
| | - Bo Ram Song
- Department of Biomaterials Science, College of Natural Resources & Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang, Korea
| | - Hye Ryeong Kim
- Department of Biomaterials Science, College of Natural Resources & Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang, Korea
| | - Ji Won Park
- Department of Biomaterials Science, College of Natural Resources & Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang, Korea
| | - Hyeon Jun Choi
- Department of Biomaterials Science, College of Natural Resources & Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang, Korea
| | - Su Ji Bae
- Department of Biomaterials Science, College of Natural Resources & Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang, Korea
| | - Dae Youn Hwang
- Department of Biomaterials Science, College of Natural Resources & Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang, Korea
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16
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Yang SB, Kim EH, Kim SH, Kim YH, Oh W, Lee JT, Jang YA, Sabina Y, Ji BC, Yeum JH. Electrospinning Fabrication of Poly(vinyl alcohol)/ Coptis chinensis Extract Nanofibers for Antimicrobial Exploits. NANOMATERIALS (BASEL, SWITZERLAND) 2018; 8:E734. [PMID: 30227671 PMCID: PMC6164458 DOI: 10.3390/nano8090734] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 09/13/2018] [Accepted: 09/14/2018] [Indexed: 11/16/2022]
Abstract
Coptis chinensis (CC) is used in conventional Chinese medicine. The main active components of CC are isoquinoline alkaloids, including berberine, coptisine, palmatine, and magnoflorine; all these are known to have several pharmacological properties. Poly(vinyl alcohol) (PVA) is a well-known synthetic biocompatible polymer suitable for a range of pharmaceutical uses; it can be used as a matrix for the incorporation of functional materials and has a wide range of applications in the cosmetics, food, pharmaceutical, and packaging industries. In this study, PVA-based electrospun nanofibers containing CC extract were successfully fabricated. Furthermore, the effects of different CC extract contents on the morphologies, and antimicrobial and antifungal properties of PVA/CC extract nanofibers were investigated. Morphological changes were observed using different molecular weights of PVA. For characterization, field-emission scanning electron microscopy, thermogravimetric analysis, and Fourier transform infrared analysis were performed. The effectiveness of these nanofibers has been demonstrated by evaluating the thermal stability against Staphylococcus aureus, antimicrobial activity against Staphylococcus aureus and Staphylococcus epidermidis, and the antifungal activity against the fungi Aureobasidium pullulans and Penicillium pinophilum. The PVA/CC extract nanofibers were found to have excellent antibacterial and antifungal activity and thermal stability; hence, their use in medicinal sectors is highly recommended.
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Affiliation(s)
- Seong Baek Yang
- Department of Advanced Organic Materials Science and Engineering, Kyungpook National University, Daegu 41566, Korea.
| | | | - Seung Hee Kim
- Korea Research Institute for Fashion Industry, Daegu 41028, Korea.
| | - Young Hun Kim
- Skin Science R&D Center, Gennolab Co., Ltd., Gyeongsan, Gyeongbuk 38541, Korea.
| | - Weontae Oh
- Division of Advanced Materials Engineering, Dong-Eui University, Busan 47340, Korea.
| | - Jin-Tae Lee
- Department of Cosmeceutical Science, Daegu Haany University, Gyeongsan, Gyeongbuk 38610, Korea.
| | - Young-Ah Jang
- Department of Cosmeceutical Science, Daegu Haany University, Gyeongsan, Gyeongbuk 38610, Korea.
| | - Yeasmin Sabina
- Department of Advanced Organic Materials Science and Engineering, Kyungpook National University, Daegu 41566, Korea.
| | - Byung Chul Ji
- Department of Advanced Organic Materials Science and Engineering, Kyungpook National University, Daegu 41566, Korea.
| | - Jeong Hyun Yeum
- Department of Advanced Organic Materials Science and Engineering, Kyungpook National University, Daegu 41566, Korea.
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17
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Aziz SB, Abdullah OG, Hussein AM, Ahmed HM. From Insulating PMMA Polymer to Conjugated Double Bond Behavior: Green Chemistry as a Novel Approach to Fabricate Small Band Gap Polymers. Polymers (Basel) 2017; 9:E626. [PMID: 30965928 PMCID: PMC6418793 DOI: 10.3390/polym9110626] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 11/05/2017] [Accepted: 11/14/2017] [Indexed: 11/29/2022] Open
Abstract
Dye-doped polymer films of Poly(methyl methacrylate) PMMA have been prepared with the use of the conventional solution cast technique. Natural dye has been extracted from environmentally friendly material of green tea (GT) leaves. Obvious Fourier transform infrared (FTIR) spectra for the GT extract were observed, showing absorption bands at 3401 cm-1, 1628 cm-1, and 1029 cm-1, corresponding to O⁻H/N⁻H, C=O, and C⁻O groups, respectively. The shift and decrease in the intensity of the FTIR bands in the doped PMMA sample have been investigated to confirm the complex formation between the GT dye and PMMA polymer. Different types of electronic transition could be seen in the absorption spectra of the dye-doped samples. For the PMMA sample incorporated with 28 mL of GT dye, distinguishable intense peak around 670 nm appeared, which opens new frontiers in the green chemistry field that are particularly suitable for laser technology and optoelectronic applications. The main result of this study showed that the doping of the PMMA polymer with green tea dye exhibited a strong absorption peak around 670 nm in the visible range. The absorption edge was found to be shifted towards the lower photon energy for the doped samples. Optical dielectric loss and Tauc's model were used to estimate the optical band gaps of the samples and to specify the transition types between the valence band (VB) and conduction band (CB), respectively. A small band gap of around 2.6 eV for the dye-doped PMMA films was observed. From the scientific and engineering viewpoints, this topic has been found to be very important and relevant. The amorphous nature of the doped samples was found and ascribed to the increase of Urbach energy. The Urbach energy has been correlated to the analysis of X-ray diffraction (XRD) to display the structure-properties relationships.
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Affiliation(s)
- Shujahadeen B Aziz
- Advanced Polymeric Materials Research Laboratory, Department of Physics, College of Science, University of Sulaimani, Qlyasan Street, Sulaymaniyah 46001, Kurdistan Regional Government, Iraq.
- Development Center for Research and Training (DCRT), University of Human Development, Qrga Street, Sulaymaniyah 46001, Kurdistan Regional Government, Iraq.
| | - Omed Gh Abdullah
- Advanced Polymeric Materials Research Laboratory, Department of Physics, College of Science, University of Sulaimani, Qlyasan Street, Sulaymaniyah 46001, Kurdistan Regional Government, Iraq.
- Development Center for Research and Training (DCRT), University of Human Development, Qrga Street, Sulaymaniyah 46001, Kurdistan Regional Government, Iraq.
| | - Ahang M Hussein
- Advanced Polymeric Materials Research Laboratory, Department of Physics, College of Science, University of Sulaimani, Qlyasan Street, Sulaymaniyah 46001, Kurdistan Regional Government, Iraq.
| | - Hameed M Ahmed
- Advanced Polymeric Materials Research Laboratory, Department of Physics, College of Science, University of Sulaimani, Qlyasan Street, Sulaymaniyah 46001, Kurdistan Regional Government, Iraq.
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18
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Bukhari MN, Shahid-ul-Islam, Shabbir M, Rather LJ, Shahid M, Singh U, Khan MA, Mohammad F. Dyeing studies and fastness properties of brown naphtoquinone colorant extracted from Juglans regia L on natural protein fiber using different metal salt mordants. ACTA ACUST UNITED AC 2017. [DOI: 10.1186/s40689-016-0025-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Kim JE, Go J, Koh EK, Song SH, Sung JE, Lee HA, Lee YH, Hong JT, Hwang DY. Gallotannin-Enriched Extract Isolated from Galla Rhois May Be a Functional Candidate with Laxative Effects for Treatment of Loperamide-Induced Constipation of SD Rats. PLoS One 2016; 11:e0161144. [PMID: 27618438 PMCID: PMC5019396 DOI: 10.1371/journal.pone.0161144] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Accepted: 08/01/2016] [Indexed: 11/19/2022] Open
Abstract
Several natural products containing tannins are used as traditional medicines for treatment of constipation; however, their pharmacological mechanism is not well understood. The laxative effects of gallotannin-enriched extract isolated from Galla Rhois (GEGR) were investigated using a constipation model induced by loperamide (Lop) injection. After analysis for antioxidant activity of GEGR, alterations in the excretion parameters, histological structure, mucin secretion, and related protein levels were measured in the transverse colon of Sprague Dawley (SD) rats with Lop-induced constipation following treatment with 250, 500 and 1,000 mg/ml of GEGR. The number and weight of feces increased significantly by 48–79% and 128–159%, respectively, in the Lop+GEGR treated group relative to the Lop+vehicle treated group, while food intake and water consumption were maintained at a constant level. The thickness of mucosa, muscle and flat luminal surface, as well as the number of goblet cells and crypt of lieberkuhn were enhanced in the Lop+GEGR treated group. Moreover, mucin secretion increased significantly in a dose dependent manner in the Lop+GEGR treated group. Furthermore, the downstream signaling pathway of the muscarinic acetylcholine receptors (mAChR) M2 and M3 was recovered by GEGR treatment, although the expression level varied. The levels of Gα expression and inositol triphosphate (IP3) concentration were also recovered in the Lop+GEGR treated group relative to the Lop+vehicle treated group. The results of the present study provide strong evidence that tannins distributed in various medicinal plants are important candidates for improving chronic constipation induced by Lop treatment in animal models.
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Affiliation(s)
- Ji Eun Kim
- Department of Biomaterials Science, College of Natural Resources & Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang, Korea
| | - Jun Go
- Department of Biomaterials Science, College of Natural Resources & Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang, Korea
| | - Eun Kyoung Koh
- Department of Biomaterials Science, College of Natural Resources & Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang, Korea
| | - Sung Hwa Song
- Department of Biomaterials Science, College of Natural Resources & Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang, Korea
| | - Ji Eun Sung
- Department of Biomaterials Science, College of Natural Resources & Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang, Korea
| | - Hyun Ah Lee
- Department of Biomaterials Science, College of Natural Resources & Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang, Korea
| | - Young Hee Lee
- Department of Organic Materials Science and Engineering, Pusan National University, Busan, Korea
| | - Jin Tae Hong
- College of Pharmacy, Chungbuk National University, Chungju, Korea
| | - Dae Youn Hwang
- Department of Biomaterials Science, College of Natural Resources & Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang, Korea
- * E-mail:
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20
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Zhou Y, Yang ZY, Tang RC. Bioactive and UV protective silk materials containing baicalin - The multifunctional plant extract from Scutellaria baicalensis Georgi. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 67:336-344. [PMID: 27287129 DOI: 10.1016/j.msec.2016.05.063] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2016] [Revised: 05/02/2016] [Accepted: 05/15/2016] [Indexed: 12/23/2022]
Abstract
There has been a phenomenal increase in the research and development of new health and hygiene-related textile products. This work reports a novel approach to develop antibacterial, antioxidant and UV-protective silk using an adsorption technique of baicalin (a bioactive ingredient from the root of Scutellaria baicalensis Georgi). Baicalin displayed high adsorption capability at pH2.75, contributing to the sufficient functionalities on silk. The equilibrium adsorption research showed that the Langmuir isotherm was able to describe the behavior of baicalin, indicating the electrostatic interactions between the ionized carboxyl groups in baicalin and the positively charged amino groups in silk. The treated silk with 2% owf (on the weight of fiber) baicalin exhibited excellent antioxidant activity, high antibacterial activities against Escherichia coli and Staphylococcus aureus, and very good ultraviolet protection ability comparable to that of the commercial benzotriazole ultraviolet absorber. The baicalin treatment had no obvious impact on the functional groups, crystal structure and surface morphology of silk. The functionalities of the treated silk obviously declined after first laundering cycle and slowly decreased in the following washing cycles. Encouraging results demonstrate that the baicalin-functionalized silk is a promising material for protective clothing and medical textiles.
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Affiliation(s)
- Yuyang Zhou
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, 199 Renai Road, Suzhou 215123, China
| | - Zhi-Yi Yang
- Lushan College, Guangxi University of Science and Technology, Liuzhou 545000, China
| | - Ren-Cheng Tang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, 199 Renai Road, Suzhou 215123, China.
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