Critical Reviews in Environmental Science and Technology, Год журнала: 2024, Номер unknown, С. 1 - 23
Опубликована: Сен. 12, 2024
Язык: Английский
Critical Reviews in Environmental Science and Technology, Год журнала: 2024, Номер unknown, С. 1 - 23
Опубликована: Сен. 12, 2024
Язык: Английский
Journal of Cleaner Production, Год журнала: 2024, Номер 469, С. 143151 - 143151
Опубликована: Июль 14, 2024
Язык: Английский
Процитировано
15Chemical and Biological Technologies in Agriculture, Год журнала: 2024, Номер 11(1)
Опубликована: Янв. 4, 2024
Abstract Background Steam explosion pretreatment has been proven to be an effective treatment for breaking down the recalcitrant character of lignin–carbohydrate complexes (LCC) in lignocellulosic biomass. This study investigated production lignin-derived products from steam-exploded palm oil mill biomass waste (POMLBW), that is, empty fruit bunches (EFB), kernel shells (KS), and fibers (KF), also known as mesocarp fibers. explosions cause lignin depolymerization, which forms various polyphenols. The low average molecular weight their antioxidant activities could potentially enhance antimicrobial activities. Methods POMLBW was with degrees severity factors ( R 0 : 4.03, 4.91, 5.12, 5.35, 5.65). Steam-exploded produces such low-molecular-weight (LML) water-soluble (WSL). Antioxidant activity evaluated using 0.5 mM 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging assay. Polyphenol content Folin–Ciocalteu method. agar diffusion assay Gram-positive Gram-negative bacteria, thermal characteristics were differential scanning calorimetry thermogravimetric analysis. Results WSL LML resulted high (RSA) approximately 95% 80%, 0.25 g/L EC50, where polyphenol amount 242–448 mg/g (catechin eq.) 20–117 under all conditions, respectively. had 1589–2832 Da, this condition, including RSA amounts, responsible against both Salmonella enterica, Pseudomonas aeruginosa, Escherichia coli ) Staphylococcus aureus bacteria. Additionally, properties investigations revealed glass transition temperature 80–90 °C T g), melting m 338–362 °C, start 101–128 at beginning mass loss. Conclusions These results show product potential (LML WSL) applications good resistance. Graphical
Язык: Английский
Процитировано
13Renewable Energy, Год журнала: 2024, Номер 224, С. 120124 - 120124
Опубликована: Фев. 13, 2024
Язык: Английский
Процитировано
10International Journal of Biological Macromolecules, Год журнала: 2023, Номер 243, С. 125031 - 125031
Опубликована: Май 25, 2023
Язык: Английский
Процитировано
22Industrial Crops and Products, Год журнала: 2023, Номер 206, С. 117696 - 117696
Опубликована: Окт. 29, 2023
Язык: Английский
Процитировано
20Macromolecular Materials and Engineering, Год журнала: 2023, Номер 308(10)
Опубликована: Май 12, 2023
Abstract When optimizing the process parameters of acidic ethanolic organosolv process, aim is usually to maximize delignification and/or lignin purity. However, such as temperature, time, ethanol and catalyst concentration, respectively, can also be used vary structural properties obtained lignin, including molecular weight ratio aliphatic versus phenolic hydroxyl groups, among others. This review particularly focuses on these influencing factors establishes a trend analysis between variation effect structure. Especially when larger data sets are available, for temperature correlations distribution depolymerization condensation reactions found, which allow direct conclusions proportion lignin's features, independent diversity biomass used. The newfound insights gained from this tailor lignins isolated specific application.
Язык: Английский
Процитировано
18ACS Sustainable Chemistry & Engineering, Год журнала: 2024, Номер 12(20), С. 7813 - 7830
Опубликована: Май 9, 2024
Lignin, due to its availability, molecular structure, reported barrier properties, and chemical modification prospects, is gaining increasing attention for potential in biobased functional coatings. Herein, softwood kraft lignin (KL) was surface functionalized (phosphorylated), yielding phosphate (KLP) engineer a pigment assessing inhibitory properties epoxy-based anticorrosive The aim emulate the conventional inhibitive mechanism of zinc by introducing partial solubility KLP. This facilitates formation passivation layer (iron phosphate), which prerequisite inhibition at interface between metal coating when it exposed corrosive conditions. Therefore, utilization KLP as signifies an innovative approach field synthesized reacting KL with phosphorus pentoxide (P2O5) characterized using Fourier Transform Infrared Spectroscopy (FTIR) Nuclear Magnetic Resonance (NMR) spectroscopy. Subsequently, incorporated into amine-cured Bisphenol-A (BPA) epoxy (KLP-EA) dry film thickness 80 μm evaluated per industrial salt spray testing coatings (ISO 9227:2017). Furthermore, corrosion resistance KLP-EA against commercially available phosphate-based (C-EA) unmodified lignin-based (KL-EA), recognized solely mechanism. polarization test demonstrated that effectively inhibited corrosion, resulting lower Icorr values. EIS results showed higher impedance modulus (|Z|0.01 > 108 Ω·cm2), signifying exception properties. from after 1000 h exposure exhibited on par performance compared C-EA significantly superior KL-EA. Based analysis rust creep 12944–9:2018), value 1.7 ± 0.2 mm, 2.3 mm based KL-EA 1.8 C-EA. Additionally, underfilm products were analyzed X-ray Photoelectron (XPS), verified existence iron (passivating film), replicating phosphate. current research findings thus provide zinc-free alternative domain
Язык: Английский
Процитировано
7Industrial Crops and Products, Год журнала: 2023, Номер 205, С. 117480 - 117480
Опубликована: Сен. 14, 2023
Язык: Английский
Процитировано
15Data in Brief, Год журнала: 2023, Номер 51, С. 109781 - 109781
Опубликована: Ноя. 7, 2023
Coffee husks are an abundant and underutilized biomass waste released from coffee production. Experimental analysis showed that consisted of 39.2 ± 0.2 wt% cellulose, 12.6 0.1 hemicellulose, 23.3 Klason lignin, 2.9 0.4 acid-soluble 8.7 extractives, 9.5 ash. Moreover, different minor elements, including K, Ca, Mg, Al, Fe, Ti, S, Si, were found. Subsequently, used for the extraction lignin using alkaline treatment. As a result, microparticles formed with relatively uniform size 0.55 0.11 mm. Altogether, current article provided useful data valorization primary properties further use.
Язык: Английский
Процитировано
13ACS Omega, Год журнала: 2024, Номер 9(39), С. 40956 - 40969
Опубликована: Сен. 19, 2024
Deep eutectic solvents (DESs) composed of choline chloride as hydrogen bond acceptors (HBAs) and six organic acids donors (HBDs) were used to extract lignin from bamboo (
Язык: Английский
Процитировано
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