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Xu E, Yu H, Wu W, Ji B, Feng X, Xu H, Zhong Y, Wang B, Mao Z. Preparation of high antioxidant nanolignin and its application in cosmetics. Int J Biol Macromol 2024; 272:132635. [PMID: 38797295 DOI: 10.1016/j.ijbiomac.2024.132635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 04/17/2024] [Accepted: 05/23/2024] [Indexed: 05/29/2024]
Abstract
Lignin, as a natural polyphenol, displays anti-oxidant activity by trapping and binding free radicals through its free phenolic hydroxyl groups. However, the most accessible form, industrial lignins, generally has low phenolic hydroxyl content, which severely limits their application value and scenarios. Herein, we showed that potassium-glycerate deep eutectic solvent (PG-DES) treatment can be combined with laccase oxidation to afford prepared high antioxidant lignin nanoparticles (HA-LNPs) with notably improved anti-oxidant activities benefiting from both the enhanced phenolic hydroxyl content 170.8 % and reduced average particle size (59.0 nm). At concentrations as low as 60 μg/mL, HA-LNPs showed favorable effects in promoting collagen formation. When HA-LNPs were used as an active ingredient in the anti-aging mask formulation, the reactive oxygen species (ROS) scavenging activity of mask samples containing 0.4 % HA-LNPs reached 37.2 %. The data suggest great promise of HA-LNPs as a natural antioxidant for formulating in anti-aging skin care products.
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Affiliation(s)
- Enhui Xu
- College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, China
| | - Hainan Yu
- College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, China
| | - Wei Wu
- College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, China
| | - Bolin Ji
- College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, China
| | - Xueling Feng
- College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, China; Innovation Center for Textile Science and Technology of Donghua University, Shanghai 201620, China
| | - Hong Xu
- College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, China
| | - Yi Zhong
- College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, China
| | - Bijia Wang
- College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, China; Innovation Center for Textile Science and Technology of Donghua University, Shanghai 201620, China.
| | - Zhiping Mao
- College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, China; Innovation Center for Textile Science and Technology of Donghua University, Shanghai 201620, China; National Dyeing and Finishing Engineering Technology Research Center, Donghua University, Shanghai 201620, China.
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2
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Wu X, Qi Z, Li X, Wang H, Yang K, Cai H, Han X. Polymerizable deep eutectic solvent treated lignocellulose: Green strategy for synergetic production of tough strain sensing elastomers and nanocellulose. Int J Biol Macromol 2024; 264:130670. [PMID: 38453108 DOI: 10.1016/j.ijbiomac.2024.130670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 01/28/2024] [Accepted: 03/04/2024] [Indexed: 03/09/2024]
Abstract
Liquid free ion-conductive elastomers (ICEs) have demonstrated promising potential in various advanced application scenarios including sensor, artificial skin, and human-machine interface. However, ICEs that synchronously possess toughness, adhesiveness, stability, and anti-bacterial capability are still difficult to achieve yet highly demanded. Here, a one-pot green and sustainable strategy was proposed to fabricate multifunctional ICEs by extracting non-cellulose components (mainly lignin and hemicellulose) from lignocellulose with polymerizable deep eutectic solvents (PDES) and the subsequent in-situ photo-polymerization process. Ascribing to the uniform dispersion of non-cellulose components in PDES, the resultant ICEs demonstrated promising mechanical strength (a tensile strength of ~1200 kPa), high toughness (~9.1 MJ m-3), favorable adhesion (a lap-shear strength up to ~61.5 kPa toward metal), conducive stabilities, and anti-bacterial capabilities. With the help of such advantages, the ICEs exhibited sensitive (a gauge factor of ~23.5) and stable (~4000 cycles) performances in human motion and physiological signal detection even under sub-zero temperatures (e.g., -20 °C). Besides, the residue cellulose can be mechanically isolated into nanoscale fibers, which matched the idea of green chemistry.
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Affiliation(s)
- Xiaoxue Wu
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, 255000, China; Shandong Research Center of Engineering and Technology for Clean Energy, Zibo, 255000, China
| | - Zhiqiang Qi
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, 255000, China; Shandong Research Center of Engineering and Technology for Clean Energy, Zibo, 255000, China
| | - Xinyi Li
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, 255000, China; Shandong Research Center of Engineering and Technology for Clean Energy, Zibo, 255000, China
| | - Hao Wang
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, 255000, China; Shandong Research Center of Engineering and Technology for Clean Energy, Zibo, 255000, China
| | - Keyan Yang
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, 255000, China; Shandong Research Center of Engineering and Technology for Clean Energy, Zibo, 255000, China
| | - Hongzhen Cai
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, 255000, China; Shandong Research Center of Engineering and Technology for Clean Energy, Zibo, 255000, China.
| | - Xiangsheng Han
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, 255000, China; Shandong Research Center of Engineering and Technology for Clean Energy, Zibo, 255000, China.
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3
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Mazar A, Paleologou M. Comparison of the effects of three drying methods on lignin properties. Int J Biol Macromol 2024; 258:128974. [PMID: 38154716 DOI: 10.1016/j.ijbiomac.2023.128974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 11/28/2023] [Accepted: 12/20/2023] [Indexed: 12/30/2023]
Abstract
In the last few years, a serious effort has been initiated to develop standard methods for lignin characterization at the national and international levels. Thus, several Canadian and ISO standards were recently developed. The current results were generated in an effort to assist the ISO/TC6 Committee come up with a reliable standard method for the measurement of the dry solids content of lignins. In particular, this work investigated the drying of lignin using three different drying methods: conduction oven drying (105 °C), vacuum oven drying at (60 °C), and freeze drying. Ten different lignins were used in this study including wet and air-dried softwood and hardwood kraft lignins in the acid and base forms from the industrial LignoForce™ process and hydrolysis lignin from the TMP-Bio™ process. The results showed that 7 h, 48 h and 24 h were sufficient to reach a constant solids content in the case of all lignins when oven drying, vacuum oven drying under negative pressure (150 mbar), and freeze drying (25 mT) were used, respectively. Kraft lignins in the base form showed higher sensitivity to degradation compared to lignins in the acid form. The total hydroxyl group content of air-dried and wet hardwood lignins in the base form decreased by more than 50 % after vacuum oven-drying for 71.5 h or oven-drying for 16 h compared to freeze-drying for 68 h. The decrease in the total hydroxyl groups was more pronounced (70 %) when the wet softwood lignin in the base form was dried in the oven compared to freeze drying for 68 h.
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Affiliation(s)
- Adil Mazar
- African Sustainable Agriculture Research Institute (ASARI), Mohammed VI Polytechnic University (UM6P), Laayoune 70000, Morocco; FPInnovations, 570 Boulevard Saint-Jean, Pointe Claire, Quebec H9R 3J9, Canada.
| | - Michael Paleologou
- FPInnovations, 570 Boulevard Saint-Jean, Pointe Claire, Quebec H9R 3J9, Canada.
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Mota IF, Antunes F, Fangueiro JF, Costa CAE, Rodrigues AE, Pintado ME, Costa PS. Sugarcane Light-Colored Lignin: A Renewable Resource for Sustainable Beauty. Int J Mol Sci 2023; 24:15941. [PMID: 37958924 PMCID: PMC10648998 DOI: 10.3390/ijms242115941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 10/25/2023] [Accepted: 10/28/2023] [Indexed: 11/15/2023] Open
Abstract
Lignin has emerged as a promising eco-friendly multifunctional ingredient for cosmetic applications, due to its ability to protect against ultraviolet radiation and its antioxidant and antimicrobial properties. However, its typical dark color and low water solubility limit its application in cosmetics. This study presents a simple process for obtaining light-colored lignin (LCLig) from sugarcane bagasse (SCB) alkaline black liquor, involving an oxidation treatment with hydrogen peroxide, followed by precipitation with sulfuric acid. The physico-chemical characterization, antioxidant and emulsifying potential of LCLig, and determination of its safety and stability in an oil-in-water emulsion were performed. A high-purity lignin (81.6%) with improved water solubility was obtained, as a result of the balance between the total aromatic phenolic units and the carboxylic acids. In addition, the antioxidant and emulsifying capacities of the obtained LCLig were demonstrated. The color reduction treatment did not compromise the safety of lignin for topical cosmetic applications. The emulsion was stable in terms of organoleptic properties (color, pH, and viscosity) and antioxidant activity over 3 months at 4, 25, and 40 °C.
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Affiliation(s)
- Inês F. Mota
- CBQF—Centro de Biotecnologia e Química Fina—Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal; (I.F.M.); (F.A.); (J.F.F.); (M.E.P.)
| | - Filipa Antunes
- CBQF—Centro de Biotecnologia e Química Fina—Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal; (I.F.M.); (F.A.); (J.F.F.); (M.E.P.)
- Amyris Bio Products Portugal Unipessoal Lda, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
| | - Joana F. Fangueiro
- CBQF—Centro de Biotecnologia e Química Fina—Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal; (I.F.M.); (F.A.); (J.F.F.); (M.E.P.)
| | - Carina A. E. Costa
- LSRE-LCM—Laboratory of Separation and Reaction Engineering—Laboratory of Catalysis and Materials, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal;
- ALiCE—Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Alírio E. Rodrigues
- LSRE-LCM—Laboratory of Separation and Reaction Engineering—Laboratory of Catalysis and Materials, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal;
- ALiCE—Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Manuela E. Pintado
- CBQF—Centro de Biotecnologia e Química Fina—Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal; (I.F.M.); (F.A.); (J.F.F.); (M.E.P.)
| | - Patrícia S. Costa
- CBQF—Centro de Biotecnologia e Química Fina—Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal; (I.F.M.); (F.A.); (J.F.F.); (M.E.P.)
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He H, Zhang R, Zhang P, Wang P, Chen N, Qian B, Zhang L, Yu J, Dai B. Functional Carbon from Nature: Biomass-Derived Carbon Materials and the Recent Progress of Their Applications. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2205557. [PMID: 36988448 DOI: 10.1002/advs.202205557] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 02/27/2023] [Indexed: 06/04/2023]
Abstract
Biomass is considered as a promising source to fabricate functional carbon materials for its sustainability, low cost, and high carbon content. Biomass-derived-carbon materials (BCMs) have been a thriving research field. Novel structures, diverse synthesis methods, and versatile applications of BCMs have been reported. However, there has been no recent review of the numerous studies of different aspects of BCMs-related research. Therefore, this paper presents a comprehensive review that summarizes the progress of BCMs related research. Herein, typical types of biomass used to prepare BCMs are introduced. Variable structures of BCMs are summarized as the performance and properties of BCMs are closely related to their structures. Representative synthesis strategies, including both their merits and drawbacks are reviewed comprehensively. Moreover, the influence of synthetic conditions on the structure of as-prepared carbon products is discussed, providing important information for the rational design of the fabrication process of BCMs. Recent progress in versatile applications of BCMs based on their morphologies and physicochemical properties is reported. Finally, the remaining challenges of BCMs, are highlighted. Overall, this review provides a valuable overview of current knowledge and recent progress of BCMs, and it outlines directions for future research development of BCMs.
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Affiliation(s)
- Hongzhe He
- Department of Chemical & Biological Engineering, Monash University, Wellington Road, Clayton, Victoria, 3800, Australia
- Energy & Environment Research Center, Monash Suzhou Research Institute, Suzhou Industry Park, Suzhou, 215123, China
| | - Ruoqun Zhang
- Department of Chemical & Biological Engineering, Monash University, Wellington Road, Clayton, Victoria, 3800, Australia
- Energy & Environment Research Center, Monash Suzhou Research Institute, Suzhou Industry Park, Suzhou, 215123, China
| | - Pengcheng Zhang
- Department of Chemical & Biological Engineering, Monash University, Wellington Road, Clayton, Victoria, 3800, Australia
- Energy & Environment Research Center, Monash Suzhou Research Institute, Suzhou Industry Park, Suzhou, 215123, China
| | - Ping Wang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, China
| | - Ning Chen
- College of Chemistry, Chemical Engineering and Materials Science, State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou, 215123, China
| | - Binbin Qian
- Department of Chemical & Biological Engineering, Monash University, Wellington Road, Clayton, Victoria, 3800, Australia
- Energy & Environment Research Center, Monash Suzhou Research Institute, Suzhou Industry Park, Suzhou, 215123, China
| | - Lian Zhang
- Department of Chemical & Biological Engineering, Monash University, Wellington Road, Clayton, Victoria, 3800, Australia
| | - Jianglong Yu
- Department of Chemical & Biological Engineering, Monash University, Wellington Road, Clayton, Victoria, 3800, Australia
- Energy & Environment Research Center, Monash Suzhou Research Institute, Suzhou Industry Park, Suzhou, 215123, China
| | - Baiqian Dai
- Department of Chemical & Biological Engineering, Monash University, Wellington Road, Clayton, Victoria, 3800, Australia
- Energy & Environment Research Center, Monash Suzhou Research Institute, Suzhou Industry Park, Suzhou, 215123, China
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6
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Antunes F, Mota IF, Fangueiro JF, Lopes G, Pintado M, Costa PS. From sugarcane to skin: Lignin as a multifunctional ingredient for cosmetic application. Int J Biol Macromol 2023; 234:123592. [PMID: 36773873 DOI: 10.1016/j.ijbiomac.2023.123592] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/18/2023] [Accepted: 02/05/2023] [Indexed: 02/12/2023]
Abstract
Lignin has been suggested as a promising candidate for cosmetic applications due to its remarkable potential to absorb ultraviolet rays and distinctive antioxidant activity. This study aims at evaluating the performance of lignin from sugarcane bagasse (SCB) as natural UV blocker, antioxidant, and pigment. Lignin was extracted from SCB, characterized and incorporated into a blemish balm (BB) cream. The biological potential, concretely, in vitro and in vivo sun protection factor (SPF) and in vitro UVA-PF, and safety were assessed. A high-purity SCB lignin (>92 %) was obtained by a mild alkaline extraction process. The results of cytotoxicity, mutagenicity, skin sensitization and in vivo acute cutaneous irritation demonstrated that SCB lignin is safe for topical applications. Lignin showed capacity to scavenge both ABTS and DPPH radicals, which were preserved after its incorporation into the cosmetic formulation. Notable results were achieved in terms of in vitro and in vivo SPF of 9.5 ± 2.9 and 9.6 ± 0.8, respectively. Furthermore, the tested lignin-based BB cream revealed a broad-spectrum UV protection (critical wavelength of 378 ± 0.5 nm). These results suggest SCB lignin as multifunctional and safe ingredient for use in cosmetic products.
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Affiliation(s)
- Filipa Antunes
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal; Amyris Bio Products Portugal Unipessoal Lda, Portugal
| | - Inês F Mota
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
| | - Joana F Fangueiro
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
| | - Graciliana Lopes
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
| | - Manuela Pintado
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
| | - Patrícia Santos Costa
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal.
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Dhara S, Samanta NS, Uppaluri R, Purkait MK. High-purity alkaline lignin extraction from Saccharum ravannae and optimization of lignin recovery through response surface methodology. Int J Biol Macromol 2023; 234:123594. [PMID: 36791942 DOI: 10.1016/j.ijbiomac.2023.123594] [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: 12/02/2022] [Revised: 01/17/2023] [Accepted: 02/05/2023] [Indexed: 02/15/2023]
Abstract
Saccharum ravannae, known as "Ekra" in the Northeast region of India, is an elephant grass species that abundantly grows in the natural habitat of Assam. This study aims to utilize this wild grass species and extract alkaline lignin of high purity through KOH-mediated alkaline hydrothermal pretreatment using the Oil bath process. Lignin recovery was optimized using RSM (response surface methodology) combined with a central composite model. Three process parameters, namely KOH concentration (1-3 %), reaction time (50-200 min), and solid loading (5-15 %), varied to optimize the combined effect of these parameters. RSM predicted a maximum lignin recovery of 15.38 g/100 g of raw biomass at optimum conditions (2.4 % KOH, 6.41 % solid loading, 176.57 min). Three experimental runs were performed at optimum conditions, and 15.81 ± 0.32 g/100 g lignin recovery was obtained, thus verifying the predicted result. Maximum 93.7 % purity of extracted lignin was achieved in a different operating condition (3 % KOH, 10 % solid loading, 125 min). The commercial and extracted alkaline lignin with maximum purity was characterized by Nuclear Magnetic Resonance (NMR), Fourier Transform Infrared Spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS). The extracted lignin shows higher phenolic content and more functional groups than commercial lignin and can be used for future applications.
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Affiliation(s)
- Simons Dhara
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Niladri Shekhar Samanta
- Centre for the Environment, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - R Uppaluri
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - M K Purkait
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India.
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Mota IF, da Silva Burgal J, Antunes F, Pintado ME, Costa PS. High value-added lignin extracts from sugarcane by-products. Int J Biol Macromol 2023; 230:123144. [PMID: 36610579 DOI: 10.1016/j.ijbiomac.2023.123144] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 11/21/2022] [Accepted: 01/01/2023] [Indexed: 01/06/2023]
Abstract
This study evaluates the production of lignin bioactive extracts from sugarcane bagasse (SCB) and straw (SCS) alkaline black liquors using greener precipitating agents (methane sulfonic acid (MSA), formic acid (FA) and lactic acid (LA)) as replacers of sulfuric acid (SA), the most common one used in industry. Results showed that the highest precipitation yield was achieved by LA when applied to SCB (14.5 g extract/100 g SCB). Lignin SCB extracts were similar in composition in terms of total carbohydrates (61-70 %), lignin (22-30 %) and inorganics (1.6-2.6 %). Regarding the SCS extracts, similar yields were obtained among all extracts, however, differences in composition were observed between SA and greener precipitating agents, particularly in terms of sugar content. All extracts exhibited radical scavenging activity; overall the extracts were more effective in the scavenging of ABTS radical. FA was the most promising alternative to SA to recover lignin bioactive extracts. This work suggests organic acids as good candidates for obtaining valuable extracts from alkaline pulping of SCB and SCS instead of the conventional sulfuric acid.
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Affiliation(s)
- Inês F Mota
- Universidade Católica Portuguesa, CBQF-Centro de Biotecnologia e Química Fina, Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal.
| | - João da Silva Burgal
- Universidade Católica Portuguesa, CBQF-Centro de Biotecnologia e Química Fina, Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
| | | | - Manuela E Pintado
- Universidade Católica Portuguesa, CBQF-Centro de Biotecnologia e Química Fina, Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
| | - Patrícia S Costa
- Universidade Católica Portuguesa, CBQF-Centro de Biotecnologia e Química Fina, Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
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Fernandes C, Medronho B, Alves L, Rasteiro MG. On Hair Care Physicochemistry: From Structure and Degradation to Novel Biobased Conditioning Agents. Polymers (Basel) 2023; 15:polym15030608. [PMID: 36771909 PMCID: PMC9921463 DOI: 10.3390/polym15030608] [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: 11/18/2022] [Revised: 01/17/2023] [Accepted: 01/20/2023] [Indexed: 01/26/2023] Open
Abstract
Hair is constantly exposed to various adverse external stimuli, such as mechanical or thermal factors, that may cause damage or cause it to lose its shine and smooth appearance. These undesirable effects can be minimized by using hair conditioners, which repair the hair and restore the smooth effect desired by the consumer. Some of the currently used conditioning agents present low biodegradability and high toxicity to aquatic organisms. Consumers are also becoming more aware of environmental issues and shifting their preferences toward natural-based products. Therefore, developing novel, sustainable, natural-based derivatives that can act as conditioning agents in hair care products and thus compete with the traditional systems obtained from non-renewable sources is highly appealing. This paper presents the key physicochemical aspects of the hair conditioning process, including hair structure and degradation, and reviews some of the new alternative conditioning agents obtained from natural resources.
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Affiliation(s)
- Catarina Fernandes
- University of Coimbra, CIEPQPF, Department of Chemical Engineering, R. Sílvio Lima, 3030-790 Coimbra, Portugal
- MED–Mediterranean Institute for Agriculture, Environment and Development, Universidade do Algarve, Faculdade de Ciências e Tecnologia, Campus de Gambelas, Ed. 8, 8005-139 Faro, Portugal
- Correspondence: (C.F.); (M.G.R.)
| | - Bruno Medronho
- MED–Mediterranean Institute for Agriculture, Environment and Development, Universidade do Algarve, Faculdade de Ciências e Tecnologia, Campus de Gambelas, Ed. 8, 8005-139 Faro, Portugal
- FSCN, Surface and Colloid Engineering, Mid Sweden University, SE-851 70 Sundsvall, Sweden
| | - Luís Alves
- University of Coimbra, CIEPQPF, Department of Chemical Engineering, R. Sílvio Lima, 3030-790 Coimbra, Portugal
| | - Maria Graça Rasteiro
- University of Coimbra, CIEPQPF, Department of Chemical Engineering, R. Sílvio Lima, 3030-790 Coimbra, Portugal
- Correspondence: (C.F.); (M.G.R.)
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10
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Enzyme-Catalyzed Polymerization of Kraft Lignin from Eucalyptus globulus: Comparison of Bacterial and Fungal Laccases Efficacy. Polymers (Basel) 2023; 15:polym15030513. [PMID: 36771814 PMCID: PMC9920240 DOI: 10.3390/polym15030513] [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: 12/20/2022] [Revised: 01/11/2023] [Accepted: 01/13/2023] [Indexed: 01/21/2023] Open
Abstract
Kraft lignin, a side-stream from the pulp and paper industry, can be modified by laccases for the synthesis of high added-value products. This work aims to study different laccase sources, including a bacterial laccase from Streptomyces ipomoeae (SiLA) and a fungal laccase from Myceliophthora thermophila (MtL), for kraft lignin polymerization. To study the influence of some variables in these processes, a central composite design (CCD) with two continuous variables (enzyme concentration and reaction time) and three levels for each variable was used. The prediction of the behavior of the output variables (phenolic content and molecular weight of lignins) were modelled by means of response surface methodology (RSM). Moreover, characterization of lignins was performed by Fourier-transform infrared (FTIR) spectroscopy and different nuclear magnetic resonance (NMR) spectroscopy techniques. In addition, antioxidant activity was also analyzed. Results showed that lignin polymerization (referring to polymerization as lower phenolic content and higher molecular weight) occurred by the action of both laccases. The enzyme concentration was the most influential variable in the lignin polymerization reaction within the range studied for SiLA laccase, while the most influential variable for MtL laccase was the reaction time. FTIR and NMR characterization analysis corroborated lignin polymerization results obtained from the RSM.
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11
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Piccinino D, Capecchi E, Trifero V, Tomaino E, Marconi C, Del Giudice A, Galantini L, Poponi S, Ruggieri A, Saladino R. Lignin Nanoparticles as Sustainable Photoprotective Carriers for Sunscreen Filters. ACS OMEGA 2022; 7:37070-37077. [PMID: 36312404 PMCID: PMC9608391 DOI: 10.1021/acsomega.2c02133] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 08/09/2022] [Indexed: 06/01/2023]
Abstract
Sunscreen filters may be degraded after prolonged UV exposure with loss of their shielding property and generation of harmful radical species. They are contained in cosmetic formulations in high concentrations, so the improvement of photostability is of relevance for safety concerns. We report here that lignin nanoparticles are sustainable carriers and photostabilizers of two common UV chemical filters, namely, avobenzone and octyl methoxycinnamate. These compounds have been encapsulated by nanoprecipitation into kraft lignin nanoparticles using eco-certified dimethyl isosorbide as a primary solvent and deionized water as an antisolvent. After the encapsulation, both compounds significantly prolonged the half-life stability against UV irradiation. The stabilizing properties of lignin nanoparticles were further improved by coencapsulation of avobenzone and octyl methoxycinnamate with hydroxytyrosol, a natural phenol with antioxidant activity recovered from olive oil wastes and characterized by skin regenerative properties.
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Affiliation(s)
- Davide Piccinino
- Department
of Ecological and Biological Sciences, University
of Tuscia, Via San Camillo de Lellis, 01100Viterbo, Italy
| | - Eliana Capecchi
- Department
of Ecological and Biological Sciences, University
of Tuscia, Via San Camillo de Lellis, 01100Viterbo, Italy
| | - Valentina Trifero
- Department
of Ecological and Biological Sciences, University
of Tuscia, Via San Camillo de Lellis, 01100Viterbo, Italy
| | - Elisabetta Tomaino
- Department
of Ecological and Biological Sciences, University
of Tuscia, Via San Camillo de Lellis, 01100Viterbo, Italy
| | - Claudia Marconi
- Department
of Chemistry, University of Rome La Sapienza, P.le A. Moro 5, 00185Rome, Italy
| | - Alessandra Del Giudice
- Department
of Chemistry, University of Rome La Sapienza, P.le A. Moro 5, 00185Rome, Italy
| | - Luciano Galantini
- Department
of Chemistry, University of Rome La Sapienza, P.le A. Moro 5, 00185Rome, Italy
| | - Stefano Poponi
- Department
of Economics, Engineering, Society, and Enterprise, University of Tuscia, Via del Paradiso 47, 01100Viterbo, Italy
| | - Alessandro Ruggieri
- Department
of Economics, Engineering, Society, and Enterprise, University of Tuscia, Via del Paradiso 47, 01100Viterbo, Italy
| | - Raffaele Saladino
- Department
of Ecological and Biological Sciences, University
of Tuscia, Via San Camillo de Lellis, 01100Viterbo, Italy
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12
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Cassoni AC, Costa P, Vasconcelos MW, Pintado M. Systematic review on lignin valorization in the agro-food system: From sources to applications. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 317:115258. [PMID: 35751227 DOI: 10.1016/j.jenvman.2022.115258] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 05/02/2022] [Accepted: 05/06/2022] [Indexed: 06/15/2023]
Abstract
Lignocellulosic biomass is the most abundant renewable resource on earth and currently most of this biomass is considered a low-value waste. Specifically, lignin is an underrated bioresource that is mostly burned for energy production and few value-added products have been created. Since the agro-food industry produces large amounts of wastes that can be potential sources of high-quality lignin, scientific efforts should be directed to this industry. Thus, this review provides a systematic overview of the trends and evolution of research on agro-food system-derived lignin (from 2010 to 2020), including the extraction of lignin from various agro-food sources and emergent applications of lignin in the agro-food chain. Crops with the highest average production/year (n = 26) were selected as potential lignin sources. The extraction process efficiency (yield) and lignin purity were used as indicators of the raw material potential. Overall, it is notable that research interest on agro-food lignin has increased exponentially over the years, both as source (567%) and application (128%). Wheat, sugarcane, and maize are the most studied sources and are the ones that render the highest lignin yields. As for the extraction methods used, alkaline and organosolv methods are the most employed (∼50%). The main reported applications are related to lignin incorporation in polymers (∼55%) and as antioxidant (∼24%). Studies on agro-food system-derived lignin is of most importance since there are numerous possible sources that are yet to be fully valorized and many promising applications that need to be further developed.
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Affiliation(s)
- Ana C Cassoni
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005, Porto, Portugal
| | - Patrícia Costa
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005, Porto, Portugal
| | - Marta W Vasconcelos
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005, Porto, Portugal
| | - Manuela Pintado
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005, Porto, Portugal.
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13
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Silva VTF, Ruschoni UCM, Ferraz A, Milagres AMF. Xylan, Xylooligosaccharides, and Aromatic Structures With Antioxidant Activity Released by Xylanase Treatment of Alkaline-Sulfite–Pretreated Sugarcane Bagasse. Front Bioeng Biotechnol 2022; 10:940712. [PMID: 35898646 PMCID: PMC9313595 DOI: 10.3389/fbioe.2022.940712] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 06/09/2022] [Indexed: 11/29/2022] Open
Abstract
Xylanase enzymes are useful to fractionate plant biomass, producing xylan, xylooligosaccharides (XOS), and antioxidant-derived XOS. In a biorefinery, pretreated biomass can be digested with xylanase prior to cellulose saccharification, enhancing the product portfolio in the process. With this vision, this study highlighted a wide range of new products attainable from alkaline-sulfite–pretreated sugarcane bagasse by treatments with endo-xylanase under controlled conditions. The developed process provided a crude extract corresponding to 29.7% (w/w) of pretreated sugarcane bagasse. The crude extract included a relatively polymeric glucuronoarabinoxylan fraction, DP2-DP6 xylooligosaccharides, and aromatic compounds. The enzymatically produced extract was fractionated with increasing ethanol concentrations [up to 90% (v/v)], providing precipitation of varied polymeric xylan fractions (48% (w/w) of the crude extract) with average molar masses ranging from 28 kDa to 3.6 kDa. The fraction soluble in 90% ethanol was subjected to adsorption on 4% (w/v) activated charcoal and eluted with an ethanol gradient from 10% to 70% (v/v), thus providing xylooligosaccharides and aromatic fractions. Most of the xylooligosaccharides (74% of the eluted sugars) were washed out in 10%–30% ethanol. DP2 and DP3 structures predominated in the 10% ethanol fraction, while DP5 structures were significantly enriched in the 30% ethanol fraction. Higher ethanol concentrations desorbed xylooligosaccharides associated with higher amounts of aromatic compounds. Total aromatics, phenolic structures, and p-hydroxycinnamates predominated in the fractions desorbed with 60% and 70% ethanol. The antioxidant activity of produced fractions correlated with their phenolic contents. Compiled results indicate that a wide variety of products can be prepared from pretreated biomass using xylanase-aided extraction procedures. Recovered fractions presented different features and specific application prospects. Beyond polymeric xylan with low lignin contamination, xylooligosaccharides or even lignin-carbohydrate complexes with antioxidant activity can be included in the biorefinery portfolio based on the currently developed fractionation studies.
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14
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Fan J, Yu Q, Li M, Chen J, Wang Y, Zhang Y, Li G, Ma X, Zhong H, Yu Y. Optimization of ethanol-extracted lignin from palm fiber by response surface methodology and preparation of activated carbon fiber for dehumidification. BIORESOUR BIOPROCESS 2022; 9:61. [PMID: 38647770 PMCID: PMC10992789 DOI: 10.1186/s40643-022-00549-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 05/12/2022] [Indexed: 11/10/2022] Open
Abstract
Lignin is a renewable bioresource that can be used for a variety of value-added applications. However, the effective separation of lignin from lignocellulosic biomass remains an ongoing challenge. In this study, lignin was extracted from waste palm fiber and successfully converted into a dehumidifying material. The following four process parameters of lignin extraction from palm fiber were optimized systematically and comprehensively using the response surface methodology: reaction time, extraction temperature, ethanol concentration and solid/liquid ratio. The results revealed that under the optimum processing conditions (111 min of extraction at 174 °C using 73% ethanol at 1/16 g/mL solid/liquid ratio), the extraction yield of lignin was 56.2%. The recovery of ethanol solvent was as high as 91.8%. Further, the lignin could be directly used without purification to produce lignin-based activated carbon fibers (LACFs) with specific surface area and total pore volume of 1375 m2/g and 0.881 cm3/g, respectively. Compared with the commercial pitch-based activated carbon fiber, the LACF has a higher specific area and superior pore structure parameters. This work provides a feasible route for extracting lignin from natural palm fiber and demonstrates its use in the preparation of activated carbon fiber with a remarkable performance as a solid dehumidification agent.
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Affiliation(s)
- Jie Fan
- Solar Energy Research Institute, Yunnan Normal University, Kunming, 650500, China
- Key Laboratory of Solar Heating and Cooling Technology of Yunnan Provincial Universities, Kunming, 650500, China
| | - Qiongfen Yu
- Solar Energy Research Institute, Yunnan Normal University, Kunming, 650500, China.
- Key Laboratory of Solar Heating and Cooling Technology of Yunnan Provincial Universities, Kunming, 650500, China.
| | - Ming Li
- Solar Energy Research Institute, Yunnan Normal University, Kunming, 650500, China
- Key Laboratory of Solar Heating and Cooling Technology of Yunnan Provincial Universities, Kunming, 650500, China
| | - Jie Chen
- Solar Energy Research Institute, Yunnan Normal University, Kunming, 650500, China
- Key Laboratory of Solar Heating and Cooling Technology of Yunnan Provincial Universities, Kunming, 650500, China
| | - Yunfeng Wang
- Solar Energy Research Institute, Yunnan Normal University, Kunming, 650500, China
- Key Laboratory of Solar Heating and Cooling Technology of Yunnan Provincial Universities, Kunming, 650500, China
| | - Ying Zhang
- Solar Energy Research Institute, Yunnan Normal University, Kunming, 650500, China
- Key Laboratory of Solar Heating and Cooling Technology of Yunnan Provincial Universities, Kunming, 650500, China
| | - Guoliang Li
- Solar Energy Research Institute, Yunnan Normal University, Kunming, 650500, China
- Key Laboratory of Solar Heating and Cooling Technology of Yunnan Provincial Universities, Kunming, 650500, China
| | - Xun Ma
- Solar Energy Research Institute, Yunnan Normal University, Kunming, 650500, China
- Key Laboratory of Solar Heating and Cooling Technology of Yunnan Provincial Universities, Kunming, 650500, China
| | - Hao Zhong
- Solar Energy Research Institute, Yunnan Normal University, Kunming, 650500, China
- Key Laboratory of Solar Heating and Cooling Technology of Yunnan Provincial Universities, Kunming, 650500, China
| | - Yamei Yu
- Solar Energy Research Institute, Yunnan Normal University, Kunming, 650500, China
- Key Laboratory of Solar Heating and Cooling Technology of Yunnan Provincial Universities, Kunming, 650500, China
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15
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Puițel AC, Suditu GD, Danu M, Ailiesei GL, Nechita MT. An Experimental Study on the Hot Alkali Extraction of Xylan-Based Hemicelluloses from Wheat Straw and Corn Stalks and Optimization Methods. Polymers (Basel) 2022; 14:polym14091662. [PMID: 35566831 PMCID: PMC9102963 DOI: 10.3390/polym14091662] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 04/18/2022] [Accepted: 04/19/2022] [Indexed: 02/07/2023] Open
Abstract
In this paper, we describe an experimental study on the hot alkali extraction of hemicelluloses from wheat straw and corn stalks, two of the most common lignocellulosic biomass constituents in Romania. The chemical compositions of the raw materials were determined analytically, and the relevant chemical components were cellulose, hemicelluloses, lignin, and ash. Using the response surface methodology, the optimum values of the hot alkaline extraction parameters, i.e., time, temperature, and NaOH concentration, were identified and experimentally validated. The physicochemical characterization of the isolated hemicelluloses was performed using HPLC, FTIR, TG, DTG, and 1H-NMR spectroscopy. The main hemicellulose components identified experimentally were xylan, arabinan, and glucan. The study emphasizes that both corn stalks and wheat straw are suitable as raw materials for hemicellulose extraction, highlighting the advantages of alkaline pretreatments and showing that optimization methods can further improve the process efficiency.
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Affiliation(s)
- Adrian Cătălin Puițel
- Faculty of Chemical Engineering and Environmental Protection “Cristofor Simionescu”, “Gheorghe Asachi” Technical University of Iasi, No. 73, 700050 Iaşi, Romania; (A.C.P.); (G.D.S.); (M.D.)
| | - Gabriel Dan Suditu
- Faculty of Chemical Engineering and Environmental Protection “Cristofor Simionescu”, “Gheorghe Asachi” Technical University of Iasi, No. 73, 700050 Iaşi, Romania; (A.C.P.); (G.D.S.); (M.D.)
| | - Maricel Danu
- Faculty of Chemical Engineering and Environmental Protection “Cristofor Simionescu”, “Gheorghe Asachi” Technical University of Iasi, No. 73, 700050 Iaşi, Romania; (A.C.P.); (G.D.S.); (M.D.)
- “Petru Poni” Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iași, Romania;
| | - Gabriela-Liliana Ailiesei
- “Petru Poni” Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iași, Romania;
| | - Mircea Teodor Nechita
- Faculty of Chemical Engineering and Environmental Protection “Cristofor Simionescu”, “Gheorghe Asachi” Technical University of Iasi, No. 73, 700050 Iaşi, Romania; (A.C.P.); (G.D.S.); (M.D.)
- Correspondence:
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16
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Marques FP, Colares AS, Cavalcante MN, Almeida JS, Lomonaco D, Silva LMA, de Freitas Rosa M, Leitão RC. Optimization by Response Surface Methodology of Ethanosolv Lignin Recovery from Coconut Fiber, Oil Palm Mesocarp Fiber, and Sugarcane Bagasse. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c04362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Francisco P. Marques
- Departament of Organic and Inorganic Chemistry, Federal University of Ceará, 60440-900, Fortaleza-CE, Brazil
| | - Aldo S. Colares
- Embrapa Agroindústria Tropical, Rua Dra. Sara Mesquita, 2270, 60511-110, Fortaleza-CE, Brazil
| | - Maria N. Cavalcante
- Embrapa Agroindústria Tropical, Rua Dra. Sara Mesquita, 2270, 60511-110, Fortaleza-CE, Brazil
| | - Jessica S. Almeida
- Chemical Engineering Department, Federal University of Ceará, 60455-760, Fortaleza-CE, Brazil
| | - Diego Lomonaco
- Departament of Organic and Inorganic Chemistry, Federal University of Ceará, 60440-900, Fortaleza-CE, Brazil
| | - Lorena M. A. Silva
- Embrapa Agroindústria Tropical, Rua Dra. Sara Mesquita, 2270, 60511-110, Fortaleza-CE, Brazil
| | | | - Renato C. Leitão
- Embrapa Agroindústria Tropical, Rua Dra. Sara Mesquita, 2270, 60511-110, Fortaleza-CE, Brazil
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17
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Yu M, He D, Zhang Y, He D, Wang X, Zhou J. Characterization of lignin extracted from Acanthopanax senticosus residue using different methods on UV-resistant behavior. Int J Biol Macromol 2021; 192:498-505. [PMID: 34619280 DOI: 10.1016/j.ijbiomac.2021.09.182] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 09/19/2021] [Accepted: 09/26/2021] [Indexed: 12/30/2022]
Abstract
Acanthopanax senticosus has been used to extract active products. However, abundant Acanthopanax senticosus residues (ASR), which contain plenty of lignin are discarded after extraction. An appropriate extraction method should be chosen to obtain the lignin with such desirable properties. Thus, this study investigated the effect of alkali, milled wood, deep eutectic solvent and ethanol methods on the lignin. Lignin obtained from different extraction methods were characterized, yields, chemical structure, thermal behavior, molecular weight and phenolic content were evaluated. The results show that the process of lignin acquisition has a great influence on the properties of lignin. Moreover, the multifarious functional groups exist in lignin macromolecules, such as phenolic, ether groups and other chromophores, conferred good UV resistance to lignin. Among them, the lignin from alkali method has the most phenolic-OH groups and smallest molecular weight result in a good UV-resistant, the SPF value achieves 2.39 at 1% AL content, the alkali method was the best way to make sunscreen blended with cream take various factors into consideration. This study used lignin as a bioactive ingredient to provide UV-resistant property to sunscreen formulations. Furthermore, lignin extracted from Acanthopanax senticosus residue provides a new application for the treatment of herb residue waste.
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Affiliation(s)
- Mengtian Yu
- Liaoning Key Laboratory of Lignocellulose Chemistry and Biomaterials, Dalian Polytechnic University, Dalian, Liaoning 116034, China
| | - Dongpo He
- Liaoning Key Laboratory of Lignocellulose Chemistry and Biomaterials, Dalian Polytechnic University, Dalian, Liaoning 116034, China
| | - Yuhang Zhang
- Pharmacy College of Changchun University of Traditional Chinese Medicine, Changchun 130117, China
| | - Dahao He
- Liaoning Key Laboratory of Lignocellulose Chemistry and Biomaterials, Dalian Polytechnic University, Dalian, Liaoning 116034, China
| | - Xing Wang
- Liaoning Key Laboratory of Lignocellulose Chemistry and Biomaterials, Dalian Polytechnic University, Dalian, Liaoning 116034, China.
| | - Jinghui Zhou
- Liaoning Key Laboratory of Lignocellulose Chemistry and Biomaterials, Dalian Polytechnic University, Dalian, Liaoning 116034, China
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18
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Yang W, Xu F, Ma X, Guo J, Li C, Shen S, Puglia D, Chen J, Xu P, Kenny J, Ma P. Highly-toughened PVA/nanocellulose hydrogels with anti-oxidative and antibacterial properties triggered by lignin-Ag nanoparticles. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 129:112385. [PMID: 34579904 DOI: 10.1016/j.msec.2021.112385] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 08/01/2021] [Accepted: 08/18/2021] [Indexed: 10/20/2022]
Abstract
In this study, Ag nanoparticles were firstly reduced on the surface of lignin nanoparticles (LNPAg) by direct reaction of silver nitrate without the use of a catalyst. Thermogravimetric analysis, Zeta potential and transmission electron microscopy measurements were performed to give evidence of the effectiveness of the reaction. After that, glutaraldehyde crosslinked PVA hydrogels, were produced by addition of unmodified LNP and Ag loaded LNP (LNPAg) in presence of cellulose nanocrystals (CNC). Thermal, mechanical, rheological, microstructural and biological anti-oxidative and anti-bacterial properties of the resulted hydrogels were investigated. It was proved that all the three nanofillers were homogeneously dispersed in PVA, and the pore diameter of the hydrogels was in the range of 0.5-2.0 μm. Nevertheless, the hydrogels showed high toughness, long-term and repeatable adhesiveness to a variety of substrates. In particular, composite hydrogels containing LNPAg nanoparticles showed excellent radical scavenging and antibacterial activities. Consequently, the effects of PVA-2CNC-2LNPAg on wound healing in mice model of full-thickness skin resection were evaluated by hematoxylin and eosin staining, taking as a reference the PVA-2CNC-2LNP system. The results showed that the wound healing time of PVA-2CNC-2LNPAg group was faster than that of neat PVA and PVA-2CNC, highlighting the role of LNPAg in enhancing the contact-active anti-oxidative and antibacterial activities mechanism in composite hydrogels. We expected that PVA hydrogels incorporating LNPAg could be used as green and efficient biomedical wound dressing materials.
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Affiliation(s)
- Weijun Yang
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, Jiangnan University, Wuxi, China.
| | - Fei Xu
- Department of Basic Medicine, Wuxi Medical School, Jiangnan University, Wuxi, China
| | - Xinyu Ma
- Department of Basic Medicine, Wuxi Medical School, Jiangnan University, Wuxi, China
| | - Jiaqi Guo
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources and Joint International Research Lab of Lignocellulosic Functional Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Chengcheng Li
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources and Joint International Research Lab of Lignocellulosic Functional Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Sudan Shen
- State Key Laboratory of Chemical Engineering, Zhejiang University, Hangzhou, China
| | - Debora Puglia
- Civil and Environmental Engineering Department, Materials Engineering Center, Perugia University, UdR INSTM, Terni, Italy
| | - Jiwei Chen
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, Jiangnan University, Wuxi, China
| | - Pengwu Xu
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, Jiangnan University, Wuxi, China
| | - Jose Kenny
- Civil and Environmental Engineering Department, Materials Engineering Center, Perugia University, UdR INSTM, Terni, Italy
| | - Piming Ma
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, Jiangnan University, Wuxi, China.
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19
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Meng S, Liu Z, Zhao X, Fan B, Liu H, Guo M, Hao H. Efficient corrosion inhibition by sugarcane purple rind extract for carbon steel in HCl solution: mechanism analyses by experimental and in silico insights. RSC Adv 2021; 11:31693-31711. [PMID: 35496830 PMCID: PMC9041445 DOI: 10.1039/d1ra04976c] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 09/12/2021] [Indexed: 12/29/2022] Open
Abstract
Sugarcane purple rind ethanolic extract (SPRE) was evaluated as an efficient corrosion inhibitor for carbon steel (C-steel) in 1 M HCl solution. Dynamic weight loss, potentiodynamic polarization, electrochemical impedance spectroscopy (EIS) and frequency modulation (EFM) measurements were employed to evaluate the anticorrosive efficiency of SPRE, which was further validated by morphological and wettability analyses. The results of the weight loss tests showed that the inhibition efficiency (ηw) for C-steel in HCl solution increased with an increase in the concentration of SPRE. An increase in temperature moderately impaired the anticorrosive efficacy of SPRE. The maximum ηw of 96.2% was attained for C-steel in the inhibition system with 800 mg L−1 SPRE at 298 K. The polarization curves indicated that SPRE simultaneously suppressed the anodic and cathodic reactions for C-steel in HCl solution, which can be categorized as a mixed-type corrosion inhibitor with a predominant anodic effect. The corrosion current density (icorr-P) was monotonously reduced with an increase in the concentration of SPRE. The charge transfer resistance (Rct) was enhanced for C-steel in the inhibition solution with a restrained capacitive property due to the adsorption of SPRE. A high temperature caused partial desorption of SPRE on the C-steel surface and a slight increase in icorr-P and decrease in Rct. However, SPRE still fully maintained its morphology and wettability at 328 K. The electrochemical kinetics of C-steel in HCl solution without and with SPRE was also supported by EFM spectra. The adsorption of SPRE conformed to the Langmuir isotherm and increased the corrosion activation energy of C-steel. Complementing the experimental observations, calculations based on density functional theory indicated that the hydroxyl-substituted pyran moiety on the carthamin (CTM) and anthocyanin (ATC) constituents in SPRE hardly contributed to its reactive activity due to their adsorption processes. Therefore, CTM and ATC exhibited imperfect parallel adsorption on the Fe (100) plane according to the molecular dynamics simulation, while anthoxanthin (ATA) and catechinic acid (CCA) constituents exhibited a flat orientation on the iron surface. The anticorrosive mechanism of extracted components from sugarcane purple rind for carbon steel in HCl solution is clarified by weight loss, electrochemical and theoretical (novel DFT calculation and molecular dynamics simulation) analyses.![]()
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Affiliation(s)
- Siguang Meng
- College of Chemistry and Materials Engineering, Beijing Technology and Business University Beijing 100048 China
| | - Zining Liu
- College of Chemistry and Materials Engineering, Beijing Technology and Business University Beijing 100048 China
| | - Xiaoqi Zhao
- College of Chemistry and Materials Engineering, Beijing Technology and Business University Beijing 100048 China
| | - Baomin Fan
- College of Chemistry and Materials Engineering, Beijing Technology and Business University Beijing 100048 China
| | - Hao Liu
- College of Chemistry and Materials Engineering, Beijing Technology and Business University Beijing 100048 China
| | - Mao Guo
- College of Chemistry and Materials Engineering, Beijing Technology and Business University Beijing 100048 China
| | - Hua Hao
- Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
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20
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Eugenio ME, Martín-Sampedro R, Santos JI, Wicklein B, Ibarra D. Chemical, Thermal and Antioxidant Properties of Lignins Solubilized during Soda/AQ Pulping of Orange and Olive Tree Pruning Residues. Molecules 2021; 26:3819. [PMID: 34201524 PMCID: PMC8270295 DOI: 10.3390/molecules26133819] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/18/2021] [Accepted: 06/18/2021] [Indexed: 11/20/2022] Open
Abstract
Some agroforestry residues such as orange and olive tree pruning have been extensively evaluated for their valorization due to its high carbohydrates content. However, lignin-enriched residues generated during carbohydrates valorization are normally incinerated to produce energy. In order to find alternative high added-value applications for these lignins, a depth characterization of them is required. In this study, lignins isolated from the black liquors produced during soda/anthraquinone (soda/AQ) pulping of orange and olive tree pruning residues were analyzed by analytical standard methods and Fourier-transform infrared spectroscopy (FTIR), nuclear magnetic resonance (solid state 13C NMR and 2D NMR) and size exclusion chromatography (SEC). Thermal analysis (thermogravimetric analysis (TGA), differential scanning calorimetry (DSC)) and antioxidant capacity (Trolox equivalent antioxidant capacity) were also evaluated. Both lignins showed a high OH phenolic content as consequence of a wide breakdown of β-aryl ether linkages. This extensive degradation yielded lignins with low molecular weights and polydispersity values. Moreover, both lignins exhibited an enrichment of syringyl units together with different native as well as soda/AQ lignin derived units. Based on these chemical properties, orange and olive lignins showed relatively high thermal stability and good antioxidant activities. These results make them potential additives to enhance the thermo-oxidation stability of synthetic polymers.
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Affiliation(s)
- María E. Eugenio
- Forest Research Center (INIA, CSIC), Ctra. de la Coruña Km 7.5, 28040 Madrid, Spain; (M.E.E.); (R.M.-S.)
| | - Raquel Martín-Sampedro
- Forest Research Center (INIA, CSIC), Ctra. de la Coruña Km 7.5, 28040 Madrid, Spain; (M.E.E.); (R.M.-S.)
| | - José I. Santos
- NMR of Facility of Research (SGIker), University of the Basque Country (UPV/EHU), Avenida Tolosa 72, 20018 Donostia-San Sebastián, Spain;
| | - Bernd Wicklein
- Materials Science Institute of Madrid (ICMM), Consejo Superior de Investigaciones Científicas (CSIC), Sor Juana Inés de la Cruz 3, 28049 Madrid, Spain;
| | - David Ibarra
- Forest Research Center (INIA, CSIC), Ctra. de la Coruña Km 7.5, 28040 Madrid, Spain; (M.E.E.); (R.M.-S.)
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21
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Yang W, Ding H, Qi G, Guo J, Xu F, Li C, Puglia D, Kenny J, Ma P. Enhancing the Radical Scavenging Activity and UV Resistance of Lignin Nanoparticles via Surface Mannich Amination toward a Biobased Antioxidant. Biomacromolecules 2021; 22:2693-2701. [PMID: 34077181 DOI: 10.1021/acs.biomac.1c00387] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
In recent years, lignin specific activities, such as antioxidation and antibacterial and anti-ultraviolet performance, have drawn more and more attention. Nevertheless, the insufficient radical scavenging (antioxidation) activity has become one of the main drawbacks that limits its high-value application. In this study, lignin nanoparticles (LNPs) were prepared via a facile acid treatment strategy. Subsequently, surface amination of LNPs (a-LNPs) was carried out through the Mannich reaction. Specifically, the antioxidant behavior of LNPs and modified LNPs was evaluated by DPPH/DMPO radical scavenging and in vitro HeLa cell reactive oxygen species (ROS) scavenging tests, which demonstrated that the antioxidation activity of a-LNPs was more evident than that of both LNPs and butylated hydroxytoluene (BHT) commercial antioxidant. The mechanism of the radical scavenging ability of aminated LNPs was elucidated and proved to be related to the bond dissociation enthalpy of Ar-O···H, determined by the electron-donating effect of the substituted groups in the ortho-position. Meanwhile, the morphologies, solubilities, and UV-absorbing and antibacterial behavior of LNPs and a-LNPs were also studied, and the results showed that a-LNP sample exhibited higher UV resistance performance than LNPs. We expected that the modified LNPs with high antioxidation activity can serve as a safe and lower-cost biobased antioxidant.
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Affiliation(s)
- Weijun Yang
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, Jiangnan University, Wuxi 214122, China
| | - Hui Ding
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, Jiangnan University, Wuxi 214122, China
| | - Guochuang Qi
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, Jiangnan University, Wuxi 214122, China
| | - Jiaqi Guo
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources and Joint International Research Lab of Lignocellulosic Functional Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Fei Xu
- Department of Basic Medicine, Wuxi Medical School, Jiangnan University, Wuxi, Jiangsu 214122, PR China
| | - Chengcheng Li
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources and Joint International Research Lab of Lignocellulosic Functional Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Debora Puglia
- Perugia University, Civil and Environmental Engineering Department, Materials Engineering Center, UdR INSTM, Terni 05100, Italy
| | - Jose Kenny
- Perugia University, Civil and Environmental Engineering Department, Materials Engineering Center, UdR INSTM, Terni 05100, Italy
| | - Piming Ma
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, Jiangnan University, Wuxi 214122, China
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22
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Piccinino D, Capecchi E, Tomaino E, Gabellone S, Gigli V, Avitabile D, Saladino R. Nano-Structured Lignin as Green Antioxidant and UV Shielding Ingredient for Sunscreen Applications. Antioxidants (Basel) 2021; 10:274. [PMID: 33578879 PMCID: PMC7916605 DOI: 10.3390/antiox10020274] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 02/02/2021] [Accepted: 02/02/2021] [Indexed: 02/07/2023] Open
Abstract
Green, biocompatible, and biodegradable antioxidants represent a milestone in cosmetic and cosmeceutical applications. Lignin is the most abundant polyphenol in nature, recovered as a low-cost waste from the pulp and paper industry and biorefinery. This polymer is characterized by beneficial physical and chemical properties which are improved at the nanoscale level due to the emergence of antioxidant and UV shielding activities. Here we review the use of lignin nanoparticles in cosmetic and cosmeceutical applications, focusing on sunscreen and antiaging formulations. Advances in the technology for the preparation of lignin nanoparticles are described highlighting structure activity relationships.
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Affiliation(s)
- Davide Piccinino
- Department of Ecology and Biology, University of Tuscia, San Camillo De Lellis, 01100 Viterbo, Italy; (E.C.); (E.T.); (S.G.); (V.G.)
| | - Eliana Capecchi
- Department of Ecology and Biology, University of Tuscia, San Camillo De Lellis, 01100 Viterbo, Italy; (E.C.); (E.T.); (S.G.); (V.G.)
| | - Elisabetta Tomaino
- Department of Ecology and Biology, University of Tuscia, San Camillo De Lellis, 01100 Viterbo, Italy; (E.C.); (E.T.); (S.G.); (V.G.)
| | - Sofia Gabellone
- Department of Ecology and Biology, University of Tuscia, San Camillo De Lellis, 01100 Viterbo, Italy; (E.C.); (E.T.); (S.G.); (V.G.)
| | - Valeria Gigli
- Department of Ecology and Biology, University of Tuscia, San Camillo De Lellis, 01100 Viterbo, Italy; (E.C.); (E.T.); (S.G.); (V.G.)
| | - Daniele Avitabile
- IDI Farmaceutici, Via dei Castelli Romani 73/75, 00071 Pomezia, Italy;
| | - Raffaele Saladino
- Department of Ecology and Biology, University of Tuscia, San Camillo De Lellis, 01100 Viterbo, Italy; (E.C.); (E.T.); (S.G.); (V.G.)
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23
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Removal efficiency optimization of Pb2+ in a nanofiltration process by MLP-ANN and RSM. KOREAN J CHEM ENG 2021. [DOI: 10.1007/s11814-020-0698-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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24
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Xu J, Xu JJ, Lin Q, Jiang L, Zhang D, Li Z, Ma B, Zhang C, Li L, Kai D, Yu HD, Loh XJ. Lignin-Incorporated Nanogel Serving As an Antioxidant Biomaterial for Wound Healing. ACS APPLIED BIO MATERIALS 2021; 4:3-13. [PMID: 35014273 DOI: 10.1021/acsabm.0c00858] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Oxidative phosphorylation is an important biological process in the body to produce energy, during which oxygen free radicals are generated as byproduct. Excessive oxygen free radicals cause cell death and reduce the rate of tissue regeneration and healing in a wound. Lignin is a natural antioxidant derived from plants, but its biomedical application is restricted because of the uncertain biocompatibility. In this work, we developed a lignin-incorporated nanogel and explored its application for wound healing. Lignin was extracted from coconut husks and determined to have strong antioxidant activity (IC50 = 25.7 ppm). Various amounts of lignin were incorporated into thermoresponsive nanogels, which were produced from polyurethane copolymers of polyethylene glycol (PEG), polypropylene glycol (PPG), and polydimethylsiloxane (PDMS). It was shown that the addition of lignin had minimal effects on the gelation and rheological properties of the nanogel but slightly increased the critical micelle concentration (CMC) of poly(PEG/PPG/PDMS urethane) copolymer from 3.38 × 10-4 g mL-1 to 4.61 × 10-4 g mL-1. The lignin-incorporated nanogels did not display detectable cytotoxicity. The lignin-incorporated nanogel possessed antioxidant activity, as it reduced the active oxygen level, protecting the LO2 cells from apoptosis caused by oxidative stress. More importantly, in vivo studies demonstrated that the lignin-incorporated nanogels accelerated the healing of burn wounds in mice as proved by the increased expression of Ki67, one marker of cell proliferation. The present work demonstrates that lignin-incorporated nanogel could serve as an antioxidant wound-dressing material and facilitate the wound healing.
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Affiliation(s)
- Jia Xu
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (Nanjing Tech), 30 South Puzhu Road, Nanjing, 211816, P.R. China
| | - Jia Jia Xu
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (Nanjing Tech), 30 South Puzhu Road, Nanjing, 211816, P.R. China
| | - Qianyu Lin
- Institute of Materials Research and Engineering (IMRE), A*STAR, 2 Fusionopolis Way, #08-03 Innovis, Singapore 138634
| | - Lu Jiang
- Institute of Materials Research and Engineering (IMRE), A*STAR, 2 Fusionopolis Way, #08-03 Innovis, Singapore 138634
| | - Duoteng Zhang
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (Nanjing Tech), 30 South Puzhu Road, Nanjing, 211816, P.R. China
| | - Zibiao Li
- Institute of Materials Research and Engineering (IMRE), A*STAR, 2 Fusionopolis Way, #08-03 Innovis, Singapore 138634
| | - Bo Ma
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (Nanjing Tech), 30 South Puzhu Road, Nanjing, 211816, P.R. China
| | - Chengwu Zhang
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (Nanjing Tech), 30 South Puzhu Road, Nanjing, 211816, P.R. China
| | - Lin Li
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (Nanjing Tech), 30 South Puzhu Road, Nanjing, 211816, P.R. China
| | - Dan Kai
- Institute of Materials Research and Engineering (IMRE), A*STAR, 2 Fusionopolis Way, #08-03 Innovis, Singapore 138634
| | - Hai-Dong Yu
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (Nanjing Tech), 30 South Puzhu Road, Nanjing, 211816, P.R. China.,Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, P. R. China
| | - Xian Jun Loh
- Institute of Materials Research and Engineering (IMRE), A*STAR, 2 Fusionopolis Way, #08-03 Innovis, Singapore 138634
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25
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Natural components in sunscreens: Topical formulations with sun protection factor (SPF). Biomed Pharmacother 2020; 134:111161. [PMID: 33360043 DOI: 10.1016/j.biopha.2020.111161] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 12/07/2020] [Accepted: 12/14/2020] [Indexed: 02/05/2023] Open
Abstract
Artificial sunscreens are already gaining traction in order to protect the skin from sunburns, photoaging and photocarcinogenesis. However, the efficacy and safety of most artificial sunscreen constituents are hindered by their photostability, toxicity and damage to marine ecosystems. Natural selection and evolution have ensured that plants and animals have developed effective protective mechanisms against the deleterious side effects of oxidative stress and ultraviolet radiation (UV). Hence, natural antioxidants such as sun blockers are drawing considerable attention. The exact mechanism by which natural components act as sunscreen molecules has not been clearly established. However, conjugated π system is reported to play an important role in protecting the vital genetic material within the organism. Compared to artificial sunscreens, natural sunscreens with strong UV absorptive capacities are largely limited by low specific extinction value and by their inability to spread in large-scale sunscreen cosmetic applications. Previous studies have documented that natural components exert their photoprotective effects (such as improved skin elasticity and hydration, skin texture, and wrinkles) through their antioxidant effects, and through the regulation of UV-induced skin inflammation, barrier impairment and aging. This review focuses on natural antioxidant topical formulations with sun protection factor (SPF). Lignin, melanin, silymarin and other ingredients have been added to high sun protection nature sunscreens without any physical or chemical UV filters. This paper also provides a reference for adopting novel technical measures (extracting high content components, changing the type of solution, optimizing formulation, applying Nano technology, et al) to design and prepare nature sunscreen formulations equated with commercial sunscreen formulations. Another strategy is to add natural antioxidants from plants, animals, microorganisms and marine organisms as special enhancer or modifier ingredients to reinforce SPF values. Although the photoprotective effects of natural components have been established, their deleterious side effects have not been elucidated.
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26
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Abstract
This review covers the latest developments and challenges in the field of broad-spectrum sunscreens and how sunscreens based on lignin address their requirements in terms of sunlight protection, antioxidants, and preservatives.
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27
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Wang B, Yang G, Chen J, Fang G. Green Synthesis and Characterization of Gold Nanoparticles Using Lignin Nanoparticles. NANOMATERIALS 2020; 10:nano10091869. [PMID: 32961968 PMCID: PMC7558301 DOI: 10.3390/nano10091869] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 09/08/2020] [Accepted: 09/16/2020] [Indexed: 01/17/2023]
Abstract
With the development of nanotechnology, gold nanoparticles (Au NPs) have attracted enormous attention due to their special properties. The green synthesis of Au NPs from lignin would inspire the utilization of lignin and its related functional materials. In this study, a rapid preparation process of Au NPs was investigated by utilizing lignin nanoparticles (LNPs) under room temperature without chemical addition. The LNPs acted as a reducing agent, stabilizing agent, and template for the preparation of LNPs@AuNPs. The obtained LNPs@AuNPs were characterized by UV-Vis spectrum, Transmission Electron Microscope (TEM), and X-ray photoelectron spectroscopy (XPS). The possible mechanism was illustrated by Fourier Transform Infrared Spectroscopy (FT-IR), 31P, XPS, and UV analyses. The abundant hydroxyl groups (24.96 mmol/g) favored the preparation of Au NPs. Au NPs diameters of 10–30 nm were well dispersed in the LNPs. The optimal reaction conditions were a ratio of 10 mg of LNPs to 0.05 mmol HAuCl4, room temperature, and a reaction time of 30 min. The LNPs@AuNPs exhibited excellent stability in the suspension for more than seven days. The reduction process could be related to the disruption of side chains of lignin, hydroxyl group oxidation, and hydroquinones and quinones from the comproportionation reaction. The LNPs@AuNPs would open a door for the design of Au NP/lignin-derived novel functional materials.
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Affiliation(s)
- Baobin Wang
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; (B.W.); (J.C.)
| | - Guihua Yang
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; (B.W.); (J.C.)
- Correspondence: (G.Y.); (G.F.)
| | - Jiachuan Chen
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; (B.W.); (J.C.)
| | - Guigan Fang
- Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Nanjing 210042, China
- Correspondence: (G.Y.); (G.F.)
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