Industrial Crops and Products最新文献

{"title":"Modulation of improved lignin structure for conversion of iron oxides on the metal artifact","authors":"Liyana Syafawati Osman ,&nbsp;Nur Hanani Hazirah Elias ,&nbsp;Mokhtar Saidin ,&nbsp;Shaiful Shahidan ,&nbsp;Ahmad Fadly Jusoh ,&nbsp;Nicolas Brosse ,&nbsp;Isabelle Ziegler-Devin ,&nbsp;Mohamad Nasir Mohamad Ibrahim ,&nbsp;Pandian Bothi Raja ,&nbsp;Djalal Trache ,&nbsp;M. Hazwan Hussin","doi":"10.1016/j.indcrop.2024.120015","DOIUrl":"10.1016/j.indcrop.2024.120015","url":null,"abstract":"<div><div>This research reveals the structural analysis and antioxidant properties of unmodified ethanol organosolv lignin (AH EOL) and modified ethanol organosolv lignin (AHD EOL and AHPB EOL) upon incorporation with 1,5-dihydroxy naphthalene and <em>p</em>-benzoquinone, respectively. The extracted lignin derived from OPF was then evaluated with FTIR NMR, GPC, thermal analyses (TGA and DSC), solubility test, and antioxidant activity. Modified ethanol organosolv lignin incorporated with <em>p</em>-benzoquinone (AHPB EOL) exhibited the smallest lignin matrix, which leads to the highest water solubility and antioxidant activity compared to other ethanol organosolv lignin (EOL) samples (D% _{AHPB EOL}: 24.25 ± 0.13 % &gt; D% _{AHD EOL}: 22.50 ± 0.16 % &gt; D% _{AH EOL}: 20.50 ± 0.22 %). The extracted EOL samples derived from OPF were then utilized in a preliminary rust conversion study of a metal artifact, which indicated that 7 wt% AHPB EOL possessed the highest RT% with 88.81 ± 0.14 %. The XRD and surface analysis of the treated rust also showed that it had transformed the archeological rust into an amorphous phase.</div></div>","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":"222 ","pages":"Article 120015"},"PeriodicalIF":5.6,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142653853","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Improvement of the properties of essential oil-starch film with whey protein isolated fibril and sodium caseinate","authors":"Qianwen Yang ,&nbsp;Furun Zheng ,&nbsp;Yue Cheng ,&nbsp;Ruoxuan Xu ,&nbsp;Chao Yuan ,&nbsp;Zhengzong Wu ,&nbsp;Die Dong ,&nbsp;Haibo Zhao ,&nbsp;Katsuyoshi Nishinari ,&nbsp;Meng Zhao ,&nbsp;Bo Cui","doi":"10.1016/j.indcrop.2024.119975","DOIUrl":"10.1016/j.indcrop.2024.119975","url":null,"abstract":"<div><div>Essential oil-starch films are important bioactive films, but their properties are not good enough and need improved. In this work, sodium caseinate (CAS) was utilized to improve the distribution and release of <em>Cinnamon</em> essential oils (CEO), and whey protein isolate fibril (WPIF) of different loadings (0 %, 4 %, 8 % and 12 %, w/w) in starch basis was added to enhance the mechanical properties of starch films. Physical, mechanical, thermal, structural, antibacterial properties, and essential oil release in the films were investigated. CAS-CEO nanoemulsion (190.7±9.4 nm) promoted the compatibility between starch and WPIF. The addition of CAS-CEO nanoemulsion and WPIF synergistically enhanced the tensile strength, stiffness, crystallinity and antibacterial effects, reduced the water vapor permeability of films, and especially delayed the release of essential oil from the films. The starch film composited with CAS-CEO nanoemulsion and appropriate loading of WPIF (8 %) significantly improved the film properties, but the addition of 12 % WPIF disrupted the properties, which might be attributed to the excessive aggregation of WPIF. The work provided useful information for improving the properties of CEO films via adding the emulsifier of CAS and the texture booster of WPIF, which could help to improve the film properties containing oil-soluble bioactive agents.</div></div>","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":"222 ","pages":"Article 119975"},"PeriodicalIF":5.6,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142661197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Carboxylation of lignin by oxidation with hydrogen peroxide and its use as emulsion stabilizer","authors":"Jost Ruwoldt ,&nbsp;Robert Skunde ,&nbsp;Mihaela Tanase-Opedal ,&nbsp;Kristin Syverud","doi":"10.1016/j.indcrop.2024.120019","DOIUrl":"10.1016/j.indcrop.2024.120019","url":null,"abstract":"<div><div>This article studied the carboxylation of technical lignin and subsequent use as emulsion stabilizer. Oxidation was conducted with hydrogen peroxide under alkaline conditions. As both titration and Fourier-transform infrared spectroscopy (FTIR) showed, phenolic units were converted to carboxyl groups by oxidation. The treatment was most effective for soda lignin from Arkansas/straw, but also had significant effect on the softwood kraft lignin and softwood soda lignin. An increase in molecular weight by size-exclusion chromatography was further noted, which was less pronounced for the Arkansas/straw lignin. It was argued that one contributing mechanism was the monolignol composition, as the lignin from annual plants also contained S-units in addition to the G-units that mostly made up the softwood lignin. Moreover, purification prior to oxidation, i.e., removal of inorganic components in the lignin, showed no significant effect on the carboxylation process. Emulsion stabilization was studied with respect to the pH using three oxidized kraft lignins. Here, lower pH yielded better emulsion stabilization, unless the lignin precipitated, which switched the stabilization mechanism from interfacial adsorption to particle stabilization. It was argued that the degree of ionization played a key role, as a lower degree of ionization corresponded with better emulsion stability at the same ionic strength. At last, measurements of interfacial tension and interfacial rheology found that oxidized lignin behaved similar to water-soluble lignosulfonates and created viscoelastic interface layers.</div></div>","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":"223 ","pages":"Article 120019"},"PeriodicalIF":5.6,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142597659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Method development and application for multi-phenolic components in the processing of Dendrobium officinale using UPLC coupled with mass spectrometry and chemometric analysis","authors":"Xinxin Yang ,&nbsp;Pengfei Liu ,&nbsp;Fengzhong Wang ,&nbsp;Tingting Zhang ,&nbsp;Nengbo Li ,&nbsp;Cong Lu ,&nbsp;Litao Tong ,&nbsp;Jiameng Liu ,&nbsp;Jing Sun ,&nbsp;Bei Fan","doi":"10.1016/j.indcrop.2024.120009","DOIUrl":"10.1016/j.indcrop.2024.120009","url":null,"abstract":"<div><div><em>Dendrobium officinale</em> (DO) is a perennial herb that has been utilized medicinal and edible purposes for thousands of years, often transforming into 'Fengdou' after drying. Despite its long-standing use, the specific phenolic components present during DO processing have remained elusive. This study established a method for the simultaneous and accurate quantification of 27 phenolic compounds during DO processing employing ultra-high performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS), with 8 reference-free components optimized through an online strategy. Furthermore, correlation analysis and molecular docking were conducted to further screened and validated 6 phenolics with α-glucosidase inhibitory activity, including vanillin, <em>p</em>-coumaric acid, 4-hydroxybenzaldehyde, resveratrol, coniferyl alcohol, and dihydropinosylvin. Notably, resveratrol exhibited the lowest binding energy at −7.7 kcal/mol among these compounds. These findings significantly contribute to the development of the deep-processing techniques for DO and the hypoglycaemic functional food industry by providing data that support the elucidation of medicinal substances in DO.</div></div>","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":"222 ","pages":"Article 120009"},"PeriodicalIF":5.6,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142653968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advances in engineered microbes for sustainable biofuel production: Current research and future outlook on lignocellulose utilization","authors":"R. Kamalesh,&nbsp;Alan Shaji,&nbsp;A. Saravanan,&nbsp;A.S. Vickram,&nbsp;P.R. Yaashikaa","doi":"10.1016/j.indcrop.2024.119988","DOIUrl":"10.1016/j.indcrop.2024.119988","url":null,"abstract":"<div><div>The upsurge in global warming, combined with the depletion of fossil fuels, has led researchers interested in other fuel sources. The search for alternative fossils moved towards the biological; degradation of waste biomass for the production of biofuels such as biohydrogen, biodiesel and bioethanol. The capability of biofuel production can be enhanced by the utilization of a model strain that holds the ability to operate at high substrate, transport sugar through deregulated pathways, and increase metabolic fluxes for improved production. Biofuel production by microorganisms shares similar properties with petroleum-based fuels. Achieving a sufficiently high yield of fuel necessitates the practical use of engineered microbes. The purpose of this review is to provide a comprehensive overview of the sources, pretreatment strategies, and production technologies involving metabolic engineering for biofuel generation. The lignocellulosic biomass has been identified as the major sources of biomass with physical treatment reported to be the most followed pre-treatment strategy. Metabolic engineering of microbes is preferred over other production techniques due to its higher efficiency, optimization of metabolic pathways, increased enzyme production and reduced by-product formation. The recent advances in engineered microbes focus on the optimization of metabolic pathways, CRISPR/Cas9, Gene Editing and modular engineering. This review also focuses on the economic and environmental concerns of biofuel production on feedstock utilization, management practices, and production scale. Finally, this paper highlights the future endeavours of the implantation of effective low-cost technologies for biofuel production in advancing culture conditions and genetic modification of biofuel-generating microbial species.</div></div>","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":"222 ","pages":"Article 119988"},"PeriodicalIF":5.6,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142653865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multifunctional-structural integrated wood cellulose‑based composite with Magpie’s Nest-shaped enhance flame retardancy and electromagnetic interference shielding","authors":"Qiang Guo ,&nbsp;Shuaiqi Hu ,&nbsp;Yanfei Pan ,&nbsp;Xiaohe Jiang ,&nbsp;Zhenhua Xue ,&nbsp;Jintian Huang","doi":"10.1016/j.indcrop.2024.119989","DOIUrl":"10.1016/j.indcrop.2024.119989","url":null,"abstract":"<div><div>The construction of multifunctional hydrophobic wood with electromagnetic interference shielding effectiveness had attracted great interest, at the same time, the problem of wood flammability must also be solved. In this study, the effectiveness of DOPO-based P and Zn complexes in improving wood flame retardancy and electromagnetic interference shielding effectiveness, and the outstanding contribution of lignocellulose skeleton and multi-interface to shielding effectiveness was demonstrated. DOPO-based P and Zn complexes with “Needle-punched” structure and much functional groups were loaded on the wood surface, and then micro-nano metal Ni particles were deposited. Through the optimization of the wood surface and itself structure, and the construction of a complete conductive network. Wood/ZnP/Ni composites electromagnetic interference shielding effectiveness couold reach 65.04 dB in the X-band. It was worth noting that the lignocellulose skeleton prepared by the top-down method and multi-interface structure increase electromagnetic interference shielding effectiveness by 10.71 % and 33.89 %, respectively. In addition, the synergistic effect of DOPO-based P and Zn complexes and the introduction of PDMS layer improved the flame retardancy (limiting oxygen index was 35.3 %) and hydrophobicity (contact angle was 133.07°), which avoided the wood poor durability problem in use. There was no doubt that it provided a new strategy for the preparation of novel materials with low-cost and extremely excellent electromagnetic interference shielding properties.</div></div>","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":"222 ","pages":"Article 119989"},"PeriodicalIF":5.6,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142653852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ecological impacts of diversified agroforestry on soil nutrients and bacterial communities in Pinus massoniana plantations in the southern subtropics","authors":"Saif Ullah ,&nbsp;Xiaomei Han ,&nbsp;Izhar Ali ,&nbsp;Wannian Li ,&nbsp;Tong Wu ,&nbsp;Yuanyuan Xu ,&nbsp;Mei Yang","doi":"10.1016/j.indcrop.2024.119933","DOIUrl":"10.1016/j.indcrop.2024.119933","url":null,"abstract":"<div><div>Converting forests from single-species to mixed-species planting affects soil chemical and biological properties, yet its impacts within medicinal plant-based agroforestry systems remain largely unexamined. This research assessed the soil nutrient spectrum and bacterial community composition in a monoculture <em>Pinus massoniana</em> (CK) and various agroforestry models: (M1) <em>Pinus massoniana</em> and <em>Alpina oxyphylla</em>, (M2) <em>Pinus massoniana</em> and <em>Ficus simplicissima</em>, (M3) <em>Pinus massoniana</em> and <em>Amomum villosum</em>, and (M4) <em>Pinus massoniana</em> and <em>Curcuma longa</em>, within both field soil and rhizosphere environments. Results showed significant (<em>p &lt;</em> 0.05) improvements in soil pH and cation exchange capacity (CEC) in agroforestry systems. Agroforestry models exhibited greater variability in soil macronutrient distribution, including nitrogen, potassium, calcium, magnesium, and sulfur (N, K, Ca, Mg, S), compared to monocultures. Specifically, <em>Curcuma longa</em> (M4C.RS) had 46.12 % higher total N content than monoculture <em>Pinus massoniana</em>. Micronutrients were higher in agroforestry rhizospheres, except for total zinc, which was higher in monoculture <em>Pinus massoniana</em>. Bacterial community analysis revealed dominant phyla including Acidobacteriota, Proteobacteria, Actinobacteria, and Chloroflexi. Agroforestry models had higher abundance of Proteobacteria, while monoculture had higher Acidobacteriota. Alpha diversity metrics, including Chao1 and Shannon indices, indicated higher species richness and evenness in agroforestry models, particularly in the rhizosphere of <em>Amomum villosum</em> (M3A.RS) and <em>Curcuma longa</em> (M4C.RS). Phylogenetic analysis indicated greater genetic diversity in agroforestry models, in terms of species richness and phylogenetic variation especially for Proteobacteria. Cluster analysis and NMDS revealed close grouping of agroforestry models, with dbRDA showing significant associations between environmental variables (pH, CEC, and nutrient profile), emphasizing their critical role in shaping bacterial community composition, supported by Spearman correlation. Functional prediction (PICRUSt2) indicated metabolism as the predominant functional category. Therefore, transition from monoculture to agroforestry, especially with <em>Curcuma longa</em> (M4), significantly enhanced soil fertility and ecosystem sustainability.</div></div>","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":"222 ","pages":"Article 119933"},"PeriodicalIF":5.6,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142661201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Diversity of chemical compounds in lily fragrance and identification of key sensory markers","authors":"Yiwei Zhou ,&nbsp;Fang Wang ,&nbsp;Qin Wang ,&nbsp;Yiwei Chen ,&nbsp;Jinfeng Dong ,&nbsp;Yuanjun Ye ,&nbsp;Genfa Zhu ,&nbsp;Yanping Fan ,&nbsp;Yechun Xu","doi":"10.1016/j.indcrop.2024.120034","DOIUrl":"10.1016/j.indcrop.2024.120034","url":null,"abstract":"<div><div>Lilies are economically significant crops, and their fragrance is a crucial trait for cut flowers. Different lily varieties exhibit a rich diversity of fragrance profiles. To identify chemical markers associated with sensory attributes, this study screened 36 popular cut lily varieties with varying fragrances. Sensory analysis and HS–SPME–GC–MS were used to evaluate their fragrance characteristics. The aroma intensity evaluation showed that OT and O varieties had stronger fragrances, while LA and L varieties had lower fragrance intensities. LO, L, and LA varieties were preferred by evaluators over O, OA, and OT varieties. However, there was no significant correlation between aroma intensity and hedonic tone. A total of 73 VOCs were detected. Methyl benzoate, <em>β</em>-myrcene, (<em>E</em>)-<em>β</em>-ocimene, allo-ocimene, ethyl benzoate, and (<em>Z</em>)-caryophyllene were present in the fragrances of most varieties. PCA and HCA analyses indicated that the relative emission of volatile organic compounds (VOCs) could effectively distinguish the fragrance characteristics of LO, O, and OT varieties, while the proportion of VOCs emissions could differentiate LA, LO, and OT varieties. PLS regression and jackknife analyses identified that the relative emission and proportion of terpinolene, eugenol, and (<em>E</em>)-isoeugenol were positively correlated with aroma intensity. Linalool (proportion) and cyclopentene, 3-isopropenyl-5,5-dimethyl- were positively correlated with hedonic tone, while methyl salicylate (proportion) was negatively correlated with hedonic tone. These findings provide potential chemical markers for the efficient evaluation of cut lily fragrances and offer references for selecting raw materials for lily fragrance oils and hydrosols.</div></div>","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":"222 ","pages":"Article 120034"},"PeriodicalIF":5.6,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142653869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Microbial community succession patterns and metabolite profiles in cigar tobacco during different mildew stages","authors":"Guanglong Wu ,&nbsp;Mingzhu Zhang ,&nbsp;Ping Han ,&nbsp;Dongfeng Guo ,&nbsp;Yaqi Shi ,&nbsp;Dongdong Mu ,&nbsp;Xingjiang Li ,&nbsp;Xuefeng Wu","doi":"10.1016/j.indcrop.2024.120005","DOIUrl":"10.1016/j.indcrop.2024.120005","url":null,"abstract":"<div><div>Mildew in cigar tobacco leaves (CTLs) degrades both quality and market value. This research systematically examines dynamic changes in key metabolic compounds and microbial community succession throughout the mildew process, categorized into three stages: un-mildew (d0), early-mildew (d4 and d8), and late-mildew (d12 and d16). As mildew progresses, carbohydrates decrease, nitrogen metabolism is hindered, the carbon-nitrogen ratio (C/N) declines, and pH rises, making the tobacco weakly alkaline. The total amount of volatile flavor compounds (VFCs) increases, with the proportion of nitrogen-containing compounds such as nicotine rising, while neophytadiene, ketones, and alcohols decrease, leading to a disruption in the coordination of various aroma substances. Microbial diversity declines, with shifts in populations of <em>Staphylococcus</em>, <em>Pseudomonas</em>, <em>Aspergillus</em>, and <em>Sampaiozyma</em>. Six fungal and five bacterial genera are the characteristic dominate microorganisms at different stages. Co-occurrence network analysis shows that complexity decreases and stability declines, while microbial diversity peaks at the early-mold stage and is severely compromised at the late-mold stage in terms of stability and functional diversity. Two-way Orthogonal Partial Least Squares (O2PLS) identified 12 fungal and 3 bacterial genera as key drivers of metabolic changes. Partial Least Squares Structural Equation Modeling (PLS-SEM) emphasized the role of fungi in CTL degradation and the impact of C/N ratio on fungal metabolism. This study, for the first time, elucidates the complex relationship between microbial succession and metabolite compounds during mildew process, providing a reference for dynamic monitoring of fermented tobacco quality.</div></div>","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":"222 ","pages":"Article 120005"},"PeriodicalIF":5.6,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142661244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fabrication of highly stable and durable wood materials by modification of polyacrylamide (PAM)-glyoxal (GLY)","authors":"Yuxin He ,&nbsp;Guijun Xie ,&nbsp;Xingwei Li ,&nbsp;Qiaoguang Li ,&nbsp;Wanju Li","doi":"10.1016/j.indcrop.2024.120033","DOIUrl":"10.1016/j.indcrop.2024.120033","url":null,"abstract":"<div><div>Facile and efficient protection strategies to improve wood dimensional stability and resistance to mold and termite are urgently needed in the architectural constructional materials market. In this study, polyacrylamide (PAM)-glyoxal (GLY) system impregnation and thermal curing were used to modify Scots pine wood. The results showed that the average anti-swelling efficacy (ASE) of 160-AGE, 160-AGEP, and 200-AGE modified wood was 36.09 %, 26.67 % and 19.00 % in volume, respectively. Compared with the untreated wood, the modified wood exhibited better mold resistance. Furthermore, the modified wood samples show higher termite mortality and lower mass losses, indicating good termite resistance. Among them, the anti-mold efficacy in 200-AGE was 91.10 %, and the termite resistance rating in 160-AGE was 9.2. The modulus of elasticity (MOE) of the modified wood sample was 16–25 % higher than that of the untreated wood. Obtained by infrared spectrum and electron microscope analysis, the acrylamide polymer penetrates into the wood cell cavities and forms polyacrylamide, which is crosslinked to wood cell wall -OH by glyoxal. This study can prove that the polyacrylamide-glyoxal system modifier has great potential as a modifier to improve the mold resistance and dimensional stability of wood.</div></div>","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":"222 ","pages":"Article 120033"},"PeriodicalIF":5.6,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142653992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}