{"title":"Oxygen propylation of cotton black liquor extract and preparation of polyurethane foam","authors":"Yixin Zheng, Mengqi Shi, Jianhui Sai, Sixuan Wang, Kaipeng Cheng, Zhengguang Li, Haowen Li, Di Cai, Jianbo Zhao","doi":"10.1016/j.indcrop.2025.122025","DOIUrl":"https://doi.org/10.1016/j.indcrop.2025.122025","url":null,"abstract":"Cotton black liquor extract was utilized as a raw material. Oxygen propylation was conducted using a micro-magnetic high-pressure reactor, followed by a one-step partial substitution of polyether polyol to prepare polyurethane foam (PUF). The characterization of PUF was conducted using FT-IR, SEM, TGA, CCT horizontal combustion, and degradation testing. The results showed that the phenolic hydroxyl conversion rate of cotton black liquor extract after oxygen propylation modification reached 45.5 % at 150℃. It exhibited good compatibility with isocyanates. The produced PUF presented a well-structured, uniform pore distribution. After combustion, a smooth, continuous carbon layer formed, leading to improved thermal stability. The total weight loss rate was reduced by 7 % compared to traditional polyurethane foam (PU0). The carbonization length in horizontal combustion tests decreased to 0.4 mm compared to PU0, and the degradation rate reached 66.7 %.In the CCT experiment, the pHRR value was reduced to 191.38 kW·m<sup>−2</sup>, and the pTHR was reduced to 4.52 MJ m<sup>2</sup>. The incorporation of cotton black liquor extract enhanced the thermal stability, flame retardancy, and degradability of the PUF. It provides a way of thinking for the treatment of cotton black liquor and provides a way of thinking for building flame retardant materials.","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":"11 1","pages":""},"PeriodicalIF":5.9,"publicationDate":"2025-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145247624","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}
Di Yang , Chengwei Song , Tingting Zhou , Yuanye Ping , Tongfei Niu , Xiaolei Ma , Guozhan Fu , Xiaogai Hou
{"title":"Effects of nitrogen application rate and harvest time on yield and quality of Artemisia argyi H. Lév. & Vanio at different stubble periods","authors":"Di Yang , Chengwei Song , Tingting Zhou , Yuanye Ping , Tongfei Niu , Xiaolei Ma , Guozhan Fu , Xiaogai Hou","doi":"10.1016/j.indcrop.2025.122021","DOIUrl":"10.1016/j.indcrop.2025.122021","url":null,"abstract":"<div><div><em>Artemisia argyi</em>, also known as silver wormwood or Chinese mugwort. To establish a nitrogen fertilizer application and harvesting management system for multiple harvests of <em>Artemisia argyi</em>, this study combined 3 stubble periods, 4 nitrogen application rates, and 3 harvest times, with 12 treatments for the first crop, 15 treatments for the second crop, and 21 treatments for the third crop, and systematically analyzed the yield and quality of <em>Artemisia argyi</em> leaves. The results showed that the yield of <em>Artemisia argyi</em> leaves in the three stubble periods was in the order of the first crop > the second crop > the third crop. The overall quality of the first crop leaves was the best; the second crop leaves had a higher output rate of moxa; and the third crop leaves had higher contents of chlorogenic acid, neochlorogenic acid, and cryptochlorogenic acid. Compared with the no-nitrogen application treatment, the “0.67 g·pot<sup>−1</sup> (268 kg·ha<sup>−1</sup>) nitrogen application in the first crop + 0.67 g·pot<sup>−1</sup> (268 kg·ha<sup>−1</sup>) nitrogen application in the second crop + no nitrogen application in the third crop” system increased the yield and quality of <em>Artemisia argyi</em> leaves in each stubble period and overall. Principal component analysis revealed that the first crop <em>Artemisia argyi</em> should be harvested 75 days after the sixth true-leaf stage. The optimal harvest time for the best quality under nitrogen application was 7 days earlier than that under no nitrogen application, and this harvest time significantly increased the yield and quality of <em>Artemisia argyi</em> leaves of the second and third crops (<em>P</em> < 0.05). Additionally, excessive nitrogen application would reduce the yield of <em>Artemisia argyi</em> leaves and affect their quality. In conclusion, optimizing the nitrogen application rates and harvest time for different stubble periods can effectively improve the quality and yield of <em>Artemisia argyi</em> leaves.</div></div>","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":"236 ","pages":"Article 122021"},"PeriodicalIF":6.2,"publicationDate":"2025-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145247623","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}
Shiya Shen, Yining Xie, Zijian Hu, Weiqian Wu, Yi Li, Weiwei Shen, Jie Wu, Yushuang Song, Xi Zhang, Jinxing Lin
{"title":"Complete mitochondrial and chloroplast genomes of Haematoxylum campechianum L. reveal insights into gene transfer and RNA editing events","authors":"Shiya Shen, Yining Xie, Zijian Hu, Weiqian Wu, Yi Li, Weiwei Shen, Jie Wu, Yushuang Song, Xi Zhang, Jinxing Lin","doi":"10.1016/j.indcrop.2025.122050","DOIUrl":"https://doi.org/10.1016/j.indcrop.2025.122050","url":null,"abstract":"Logwood (<em>Haematoxylum campechianum</em> L.) is an economically valuable tree species with diverse medicinal properties. However, the organelle genomes of logwood have not yet been elucidated, thereby hindering phylogenetic studies and comparative analyses within the Caesalpinioideae subfamily as well as limiting genetic investigations of its bioactive metabolite biosynthesis pathways. In this study, the mitochondrial genome (mitogenome) and chloroplast genome of <em>H. campechianum</em> were assembled and annotated successfully. The results demonstrated that the logwood mitogenome spanned 672,957 bp, including 36 protein-coding genes (PCGs), 23 tRNAs, and 3 rRNAs. In comparison, the chloroplast genome of logwood was 157,156 bp long and contained 79 PCGs, 28 tRNA genes, and 4 rRNA genes. In addition, phylogenetic reconstruction revealed topological discordance between mitogenome- and chloroplast-based trees, attributable to mitochondrial mutation rate acceleration. Furthermore, 16 mitochondrial plastid DNA segments were identified, evidencing inter-organellar gene transfer, along with 286 predicted RNA editing sites showing the 87.23 % validation rate. Taken together, this study provided the valuable organelle genome resources for the Caesalpinioideae subfamily, elucidated the phylogenetic relationships, and supplied essential resources for probing the evolution of logwood.","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":"56 1","pages":""},"PeriodicalIF":5.9,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145241741","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}
Zepeng Cheng , Zhiwen Chen , Mingfeng Wang , Yongzhi Ren , Ke Zhang
{"title":"Kinetics analysis and numerical simulation of eucalyptus sawdust pyrolysis","authors":"Zepeng Cheng , Zhiwen Chen , Mingfeng Wang , Yongzhi Ren , Ke Zhang","doi":"10.1016/j.indcrop.2025.122045","DOIUrl":"10.1016/j.indcrop.2025.122045","url":null,"abstract":"<div><div>In this study, thermogravimetric analysis (TGA) was employed to investigate the thermal decomposition characteristics and kinetic parameters of eucalyptus sawdust at heating rates of 5, 10, 15, 20, and 30 ℃/min (20–900℃) under a nitrogen atmosphere (99.99 %, 30 mL/min). The pyrolysis process of eucalyptus sawdust was divided into three stages: drying and preheating (DH), fast weight-losing pyrolysis (FP) and carbon growing (CG). Mechanism function fitting determined that the DH and FP stages followed follow n-order reaction and Jander-type 3D diffusion, respectively. The activation energy (<em>E</em>), pre-exponential factor logarithm (lg<em>A</em>) and reaction order (<em>n</em>) of the DH and FP stages are 82.42 and 143.40 kJ/mol, 10.77 and 9.00 s<sup>−1</sup>, and 2.58 and 2.00, respectively. The results are highly consistent with the <em>E</em> and lg<em>A</em> values estimated by FWO and Friedman methods in the conversion rate (<em>α</em>) range of 0.2–0.8. For the CG stage, a new reaction process fitting equation (<span><math><mrow><mi>α</mi><mo>=</mo><mn>0.8695</mn><msup><mrow><mi>β</mi></mrow><mrow><mn>0.1319</mn></mrow></msup><mspace></mspace><mi>ln</mi><mspace></mspace><mi>T</mi><mo>−</mo><mn>5.0275</mn><msup><mrow><mi>β</mi></mrow><mrow><mn>0.1442</mn></mrow></msup></mrow></math></span>) was developed by numerical simulation of fitting <em>α</em>, temperature (<em>T</em>) and heating rate <em>(β</em>). The high coefficient of determination (R<sup>2</sup>>0.9700) confirms the equation's reliability. This study provides crucial theoretical support for optimizing the pyrolysis process of eucalyptus sawdust and guiding the reactor design.</div></div>","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":"236 ","pages":"Article 122045"},"PeriodicalIF":6.2,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145241386","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}
Guanxian Qiu, Ce Sun, Dingyuan Zheng, Jie Zhang, Jianfeng Zhan, Min Jin, Haiyan Tan, Yanhua Zhang
{"title":"Highly resilient PBAT foams fabricated by bamboo powder limiting strategy using supercritical CO2 foaming","authors":"Guanxian Qiu, Ce Sun, Dingyuan Zheng, Jie Zhang, Jianfeng Zhan, Min Jin, Haiyan Tan, Yanhua Zhang","doi":"10.1016/j.indcrop.2025.122056","DOIUrl":"https://doi.org/10.1016/j.indcrop.2025.122056","url":null,"abstract":"High-performance Poly (butylene adipate-co-butylene terephthalate) (PBAT) foam holds significant potential for application in packaging, construction and other sectors, but it has the problems of high shrinkage rate and poor resilience. In this study, highly resilient PBAT/bamboo powder (BP) foams were produced using the supercritical carbon dioxide (scCO<sub>2</sub>) foaming technique, with BP as the reinforcement material. A systematic investigation was conducted to assess the effects of BP content and foaming conditions on foam properties. In addition, the mechanism of enhancement of foam's resistance to shrinkage using BP limiting strategy were elucidated. When the content of BP was 15 wt%, the foaming temperature was 100 ℃, and the foaming pressure was 12 MPa, the foaming ratio of the foam was 10.11 times, the density was 0.13 g/cm³ , and the shrinkage rate was significantly reduced from 68.57 % of pure PBAT to 5.24 % (a substantial reduction of 92.36 %). BP enhances the melt strength of PBAT and acts as the heterogeneous nucleation site to increase cell density, achieving synergistic resistance for foam shrinkage. The PBAT/BP foams exhibited outstanding resilience (can recover the original state after being folded, twisted, or compressed). Additionally, the prepared PBAT/BP foams showed similar thermal conductivity 28.85 mW/(m·K) to commercial polyurethane (PU) and polystyrene (PS) foams, offering ideal substitutes for fossil-based foams. This study offers a broadly applicable strategy for the production of shrinkage-resistant, heat insulating, and resilient biodegradable polyester foams.","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":"9 1","pages":""},"PeriodicalIF":5.9,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145241477","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":"Impact of different agricultural biomass residues on the performance of continuous solar-steam gasification","authors":"Srirat Chuayboon , Stéphane Abanades","doi":"10.1016/j.indcrop.2025.122048","DOIUrl":"10.1016/j.indcrop.2025.122048","url":null,"abstract":"<div><div>Solar-driven biomass gasification represents a promising avenue for sustainable carbon-neutral fuel production. Nevertheless, the types of raw biomass materials play a vital role in continuous solar gasification performance. In this study, continuous solar-steam gasification with various agricultural crop residues was experimentally carried out in a 1.5 kW<sub>th</sub> solar gasifier to investigate the influence of biomass types on performance and efficiency under different operating temperatures up to 1400 °C. Seven agricultural residues were used as feedstocks, including oil palm wastes (palm mesocarp fiber, palm empty fruit bunch, and palm kernel shell), bagasse, betel nut, coconut fiber, and rice husks. Results demonstrated that the system can effectively perform with all biomass types with high-quantity and high-quality syngas production. The process revealed exceptional performance and efficiency, including the total maximum syngas yield range of 67.9–81.5 mmol/g<sub>dry biomass</sub>, reaching 81.4–95.2 % of the theoretical total syngas yields, maximum energy upgrade factor (1.05–1.35), reaching 94.2–97.3 % of the theoretical values, and maximum carbon conversion (87.2–96.9 %). The feedstock types showed a significant influence on gasification outcomes. Palm oil empty fruit bunch, betel nut, and palm mesocarp fiber were promising candidates for solar gasification with their high volatile content and significant decomposition potential, followed by coconut fiber and bagasse. Nevertheless, palm kernel shell and rice husk were found to be unsuitable biomasses for continuous solar-steam gasification because of the issues of reduced gasification activity and reaction rate limitations, due to a high density for palm kernel shell and a high ash content for rice husk. A temperature of 1300 °C was recommended to carry out continuous solar-steam gasification, leading to the maximum solar-to-fuel energy conversion efficiency in the range 13.7–18.9 %. This study provides insights into the influence of agricultural residue types on the solar-steam gasification process, while assisting in the proper biomass residue selection for efficient continuous solar gasification.</div></div>","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":"236 ","pages":"Article 122048"},"PeriodicalIF":6.2,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145241430","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}
Yue Li, Jingying Hei, Jiansong Peng, Xiaoyan Zhao, Rui Rui, Biao Wang, Xiahong He, Shu Wang
{"title":"Unveiling the molecular regulations of terpenoid biosynthesis in Sanqi flowers across two cultivation systems and flowering stages using multiomics approaches","authors":"Yue Li, Jingying Hei, Jiansong Peng, Xiaoyan Zhao, Rui Rui, Biao Wang, Xiahong He, Shu Wang","doi":"10.1016/j.indcrop.2025.122074","DOIUrl":"https://doi.org/10.1016/j.indcrop.2025.122074","url":null,"abstract":"The quality of Sanqi flowers is significantly influenced by the cultivation system of Sanqi. However, a comparison of the quality of Sanqi flowers during different flowering stages obtained from the <em>Pinus armandii</em>-Sanqi (PAS) and <em>Pinus yunnanensis</em>-Sanqi (PYS) agroforestry systems has hitherto not been conducted. Herein, a systematic analysis of the molecular mechanisms of terpenoid biosynthesis in the Sanqi flowers was performed using multiomics (GC-MS, LC-MS and transcriptomics) analyses. Totally, 41 and 42 types of volatile organic compounds (VOCs), predominantly classified as sesquiterpenoids, were present in Sanqi flowers from the PAS and PYS systems, respectively. Germacrene D was notably prominent in Sanqi flowers from the PAS system. Moreover, 154 metabolites of nonvolatile terpenoids were identified, which primarily included triterpenoid saponins (84.415 %) and triterpenoids (15.585 %). Cultivation system chiefly contributed to differences in the VOCs and non-VOCs of Sanqi flowers. A total of 45 and 49 differentially expressed metabolites were significantly upregulated in the early and full bloom stages, respectively, of Sanqi flowers from the PAS system. Furthermore, gypenoside XVII, gypenoside IX, notoginsenoside Fd, ginsenoside Rd, and chikusetsusaponin-FK1 were the major non-VOCs. Additionally, the <em>SQLE</em> and <em>GERD</em> genes directly regulated the biosynthesis of triterpenoids and sesquiterpenoids, respectively. The yeast one-hybrid system indicated that MYB61 transcription factor interacted with the <em>GERD</em> gene. Thus, Sanqi flowers of higher quality were obtained from the PAS system. Our results contribute to revealing the molecular mechanisms in terpenoid compounds in Sanqi flowers from the PAS systems, laying the foundation for the application of metabolites in the Sanqi flowers.","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":"128 1","pages":""},"PeriodicalIF":5.9,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145241431","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}
Letícia Tamara Maleski , Mireli Trombin de Souza , Michele Trombin de Souza , Renan Reisdörfer Schorr , Rilton Alves de Freitas , Francisco de Assis Marques , Beatriz Helena Lameiro de Noronha Sales Maia , Joslaine Jacumazo , Maria Aparecida Cassilha Zawadneak , Joatan Machado da Rosa , Diones Krinski , Leandro do Prado Ribeiro , Daniel Bernardi
{"title":"Optimizing the performance of Piper mikanianum essential oils by developing a slow-release layer-by-layer self-assembly for Tetranychus urticae control with selectivity toward its natural enemy","authors":"Letícia Tamara Maleski , Mireli Trombin de Souza , Michele Trombin de Souza , Renan Reisdörfer Schorr , Rilton Alves de Freitas , Francisco de Assis Marques , Beatriz Helena Lameiro de Noronha Sales Maia , Joslaine Jacumazo , Maria Aparecida Cassilha Zawadneak , Joatan Machado da Rosa , Diones Krinski , Leandro do Prado Ribeiro , Daniel Bernardi","doi":"10.1016/j.indcrop.2025.122062","DOIUrl":"10.1016/j.indcrop.2025.122062","url":null,"abstract":"<div><div>Nanoformulations containing essential oils (EOs) with oppositely charged biopolymers have gained recognition in arthropod pest management due to their biocompatibility and biodegradability. In this study, we formulated nanoemulsions (NEs) and nanocapsules (NCs) containing EO from <em>Piper mikanianum</em> (PMEO) using the Layer-by-Layer (LbL) method, with alternating layers of chitosan (NCs–PMEO–LbL<sub>1</sub>) and sodium alginate (NCs–PMEO–LbL<sub>2</sub>), for use in the management of the two-spotted spider mite, <em>Tetranychus urticae</em>. The PMEO yield was 0.9 ± 0.3 %, with epicyclocolorenone, germacrone, and 4,6-dimethyl-5-vinyl-1,2-benzodioxane identified as major compounds. Apparent hydrodynamic diameters were 174 ± 86 nm for NCs–PMEO–LbL<sub>1</sub> and 170 ± 30 nm for NCs–PMEO–LbL<sub>2</sub>. Surface potential inversion of the NCs confirmed successful layer deposition, and the system demonstrated stability. Maximum incorporation efficiency ranged from 51.1 ± 6.0 % (NCs–PMEO–LbL<sub>2</sub>) to 36.6 ± 4.7 % (NCs–PMEO–LbL<sub>1</sub>). PMEO, NE-PMEO, and NCs–PMEO–LbL<sub>2</sub> exhibited topical toxicity to adults of <em>T. urticae</em>, achieving 89–97 % mortality. These formulations, including NCs–PMEO–LbL<sub>1</sub>, reduced the egg viability of <em>T. urticae</em> and induced mite repellency on treated strawberry leaflets. Additionally, NCs-PMEO minimized or prevented phytotoxicity in strawberries leaflets compared to free EO. Ecotoxicological assessments revealed NCs-PMEO selectivity with <em>Neoseiulus californicus</em>, a predator of <em>T. urticae</em>, in persistence assays of biological activity. This study presents a cost-effective, solvent- and synthetic polymer-free approach to producing NCs as an eco-friendly bioacaricide for <em>T. urticae</em> control, offering a promising alternative to conventional synthetic acaricides.</div></div>","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":"236 ","pages":"Article 122062"},"PeriodicalIF":6.2,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145241381","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}
Zhechen Liu, Yuan Zhong, Zhangjing Chen, Xiaotao Zhang, Ximing Wang
{"title":"Efficient activation of peroxodisulfate by Cu-loaded carbon catalysts for the degradation of highly concentrated Congo red","authors":"Zhechen Liu, Yuan Zhong, Zhangjing Chen, Xiaotao Zhang, Ximing Wang","doi":"10.1016/j.indcrop.2025.122066","DOIUrl":"https://doi.org/10.1016/j.indcrop.2025.122066","url":null,"abstract":"Cu cluster-loaded carbon (CuC) catalysts were synthesized through a one-step pyrolysis process utilizing chlorophyllin sodium copper salt. The degradation efficiency of CuC<sub>700</sub>-activated peroxodisulfate (PDS) against high concentration Congo red (100 mg/L) was 90.69 % after 10 min. The degradation rates of Congo red after 600 min of dynamic degradation were 90.26 %. Increasing the heat treatment temperature enhances the crystallinity of Cu clusters. After heat treatment, the pyrrole nitrogen content in the blocky, low-porosity CuC catalyst increases, and Cu<sup>+</sup> species are generated. A neutral environment is most favorable for the degradation of Congo red; however, the presence of humic acid inhibits the degradation rate. During the Congo red degradation, it is primarily mediated by species such as <sup>1</sup>O<sub>2</sub> and •O<sub>2</sub><sup>−</sup>, with first-principles calculations indicating that Cu clusters loaded on carbon layers markedly enhance the adsorption energy of PDS, leading to an increase in the length of the O-O bond from 1.469 to 1.512 Å. Nitrogen doping and Cu cluster loading on carbon improve the adsorption and electron transport from CuC<sub>700</sub> to PDS. The N-N bond within the Congo red molecule as primary cleavage site, and quantitative structure-activity relationship analyses indicate a reduction in the collective toxicity of the resulting degradation intermediates. Finally, potential degradation pathways and mechanisms for Congo red are proposed.","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":"105 1","pages":""},"PeriodicalIF":5.9,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145241762","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}
Xiaoyu Lu , Shaofeng Peng , Yi'an Yin , Minhong Sun , Zelong Wu , Xiangyi Wu , Zhangtai Niu , Ze Li , Lingli Wu
{"title":"Mechanisms of exogenous ABA-induced drought tolerance in Idesia polycarpa seedlings revealed by integrated physiological, transcriptomic, and metabolomic analyses","authors":"Xiaoyu Lu , Shaofeng Peng , Yi'an Yin , Minhong Sun , Zelong Wu , Xiangyi Wu , Zhangtai Niu , Ze Li , Lingli Wu","doi":"10.1016/j.indcrop.2025.122030","DOIUrl":"10.1016/j.indcrop.2025.122030","url":null,"abstract":"<div><div><em>Idesia polycarpa</em> is an important woody oil crop widely used for edible and industrial oils, landscaping, bioenergy, medicine, and cosmetics. However, its drought tolerance remains poorly understood at the molecular level. This study investigated the effects of exogenous abscisic acid (ABA) on drought responses in <em>I. polycarpa</em> seedlings. Drought stress reduced chlorophyll content and thinned leaf tissues, whereas ABA treatment maintained chlorophyll levels and increased palisade tissue thickness. Physiologically, ABA enhanced leaf relative water content, promoted osmolyte accumulation, reduced electrolyte leakage, and increased antioxidant enzyme activities. Integrated transcriptomic and metabolomic analyses revealed that ABA activated the plant hormone signaling pathway and the ascorbate–aldarate metabolism pathway, regulating the expression of key genes including <em>PP2C51, TIFY10A, GID2, AUX22D, IAA27</em>, and <em>MIOX1</em>, <em>AKR4C9</em>, thereby maintaining internal hormonal balance. Consequently, ABA, IAA, and GA levels increased, whereas JA and SA levels decreased. These findings indicate that exogenous ABA enhances drought tolerance in <em>I. polycarpa</em> seedlings through coordinated morphological, physiological, and molecular responses, providing a theoretical basis for seedling management and the development of drought-resistant cultivars.</div></div>","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":"236 ","pages":"Article 122030"},"PeriodicalIF":6.2,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145241382","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}