Journal of Environmental Science and Health Part B-pesticides Food Contaminants and Agricultural Wastes最新文献

Insecticidal efficacy of green-synthesized copper nanoparticles and their impact on detoxification genes in the khapra beetle. 绿色合成纳米铜的杀虫效果及其对甲虫解毒基因的影响。

IF 1.4 4区农林科学

Journal of Environmental Science and Health Part B-pesticides Food Contaminants and Agricultural Wastes Pub Date : 2025-05-13 DOI: 10.1080/03601234.2025.2501355

Mohammed Lengichow Kadir, Asli Dageri, Tuğba Nur Aslan

{"title":"Insecticidal efficacy of green-synthesized copper nanoparticles and their impact on detoxification genes in the khapra beetle.","authors":"Mohammed Lengichow Kadir, Asli Dageri, Tuğba Nur Aslan","doi":"10.1080/03601234.2025.2501355","DOIUrl":"https://doi.org/10.1080/03601234.2025.2501355","url":null,"abstract":"The khapra beetle, Trogoderma granarium (Everts) (Coleoptera: Dermestidae), is a highly destructive and quarantine-significant pest of numerous stored grain products. Despite increasing resistance, its management still heavily relies on chemical insecticides. Green nanoparticles (NPs) have recently been extensively studied as promising alternatives for pest control. In this study, ultra-small copper NPs (Cu NPs) (6.59 ± 0.57 nm) were synthesized using Origanum sp. extract. The insecticidal efficacy of Cu NPs was evaluated, and the 300 ppm concentration exhibited the highest mortality (93.3%) in T. granarium adults. The LC50 and LC90 values were 203.3 ppm and 268.3 ppm, respectively, at 144 h. Due to their roles in detoxifying reactive oxygen species (ROS) and neurotransmission, the genes Superoxide dismutase (TgSOD), Catalase (TgCAT), Glutathione Peroxidase (TgGPX), and Acetylcholinesterase (TgACHE) were identified in the cDNA library of T. granarium for gene expression analysis. Remarkable abundance of the four genes was detected at 200 ppm after 48 h, suggesting that their upregulation may be associated with oxidative stress induced by Cu NPs. It can be inferred that green-synthesized Cu NPs may have an insecticidal effect on T. granarium and can be considered an alternative pest management tool.","PeriodicalId":15720,"journal":{"name":"Journal of Environmental Science and Health Part B-pesticides Food Contaminants and Agricultural Wastes","volume":" ","pages":"1-13"},"PeriodicalIF":1.4,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144028963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Environmental Risk Index of the main insecticides used In the state of Mato Grosso. 马托格罗索州主要杀虫剂的环境风险指数。

IF 1.4 4区农林科学

Journal of Environmental Science and Health Part B-pesticides Food Contaminants and Agricultural Wastes Pub Date : 2025-04-26 DOI: 10.1080/03601234.2025.2496064

Eliza Vitoria Marinho Viana, Marilza da Silva Costa, Jefferson Marcelo Arantes da Silva, Henrique Fonseca Goulart, Miriam Hiroko Inoue, Mônica Josene Barbosa Pereira

{"title":"Environmental Risk Index of the main insecticides used In the state of Mato Grosso.","authors":"Eliza Vitoria Marinho Viana, Marilza da Silva Costa, Jefferson Marcelo Arantes da Silva, Henrique Fonseca Goulart, Miriam Hiroko Inoue, Mônica Josene Barbosa Pereira","doi":"10.1080/03601234.2025.2496064","DOIUrl":"https://doi.org/10.1080/03601234.2025.2496064","url":null,"abstract":"Mato Grosso is the largest consumer of pesticides in Brazil, and although their role in phytosanitary control is evident, environmental contamination is a concern due to their intensive use. Therefore, identifying the behavior of pesticides in the environment can assist in risk management, and the Environmental Risk Index (ERI) is an indirect way of knowing the potential of these compounds. This study was aimed at evaluating the ERI of the most sold insecticides in Mato Grosso used for the control of lepidopteran pests. The parameters evaluated were persistence in the soil, leaching, volatility, toxicological profile and recommended dose. Our findings reported on 24 insecticides, which totaled an annual amount of 23,046,348 kg of active ingredients, with acephate at the top of the ranking with 8,974,413 kg sold in 2020. This insecticide, despite being widely used, had the lowest ERI due to low persistence, leaching and volatility, and its critical factor was animal toxicity. Malathion, methoxyphenozide, chlorantraniliprole, flubendiamide, and beta-cyfluthrin had the highest ERI, with toxicological profile and persistence in the environment as critical factors. In general, all compounds exhibited medium to very high levels of toxicity, indicating the need to manage risks associated with insecticide use and select those with lower impact, to minimize damage to agroecosystems.","PeriodicalId":15720,"journal":{"name":"Journal of Environmental Science and Health Part B-pesticides Food Contaminants and Agricultural Wastes","volume":" ","pages":"1-8"},"PeriodicalIF":1.4,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143999636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mixture of auxinic herbicides for the control of Conyza spp. and its phytotoxic effects on soybean sown in sequence. 混配抗氧化除草剂防治黄锈病及其对大豆顺序播种的毒性效应。

IF 1.4 4区农林科学

Journal of Environmental Science and Health Part B-pesticides Food Contaminants and Agricultural Wastes Pub Date : 2025-01-01 Epub Date: 2025-01-23 DOI: 10.1080/03601234.2025.2455328

Rafael Pessoni Pereira Nascimento Borges, Paulo Vinicius da Silva, Elias Silva de Medeiros, Bruna Ferrari Schedenffeldt, Elaine Facco Celin, Caio Haruo Pauluzi Shingu, Lucas Maraus Marostica, Nayane Soares França, Luiz Pedro Lemos Cervo, Munir Mauad, Pedro Antônio Vougodo Salmazo, Patricia Andrea Monquero

{"title":"Mixture of auxinic herbicides for the control of Conyza spp. and its phytotoxic effects on soybean sown in sequence.","authors":"Rafael Pessoni Pereira Nascimento Borges, Paulo Vinicius da Silva, Elias Silva de Medeiros, Bruna Ferrari Schedenffeldt, Elaine Facco Celin, Caio Haruo Pauluzi Shingu, Lucas Maraus Marostica, Nayane Soares França, Luiz Pedro Lemos Cervo, Munir Mauad, Pedro Antônio Vougodo Salmazo, Patricia Andrea Monquero","doi":"10.1080/03601234.2025.2455328","DOIUrl":"10.1080/03601234.2025.2455328","url":null,"abstract":"The combination of auxin-mimicking herbicides from different chemical groups offers an alternative for controlling fleabane (Conyza spp.) in soybean pre-sowing, but care is needed to avoid phytotoxicity. This study evaluated the effectiveness of auxinic herbicide mixtures in controlling Conyza spp. and their residual effects on soybean plants. A randomized block field experiment tested 13 combinations of auxinic herbicides with glyphosate, followed by glufosinate 14 days after application (DAA). At 42 DAA, all the treatments provided satisfactory control, with triclopyr + halauxifen + diclosulan achieving 100% effectiveness, while the 2,4-D combinations were controlled at 80-90%. Aminopyralid caused the highest phytotoxicity (50-75%), while dicamba caused less than 25% phytotoxicity. Aminopyralid also significantly reduced yield and thousand-grain weight to nearly zero, whereas the other treatments maintained yields of approximately 2,500 kg ha-1. These results demonstrate the efficacy of auxinic herbicide combinations for managing Conyza spp., provided that the phytotoxic risks to soybean are carefully managed.","PeriodicalId":15720,"journal":{"name":"Journal of Environmental Science and Health Part B-pesticides Food Contaminants and Agricultural Wastes","volume":" ","pages":"91-101"},"PeriodicalIF":1.4,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143028966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effective approach for removing antibiotic residues from wastewater using Bi₂O₃@C₃N₄ photocatalyst. Bi2O3@C3N4光催化剂去除废水中抗生素残留的有效方法。

IF 1.4 4区农林科学

Journal of Environmental Science and Health Part B-pesticides Food Contaminants and Agricultural Wastes Pub Date : 2025-01-01 Epub Date: 2025-02-06 DOI: 10.1080/03601234.2025.2459996

Minh Viet Nguyen, Phong Nguyen Thanh, Minh Phuong Nguyen, Huong Pham Thi, Nhat Minh Dang

{"title":"Effective approach for removing antibiotic residues from wastewater using Bi2O3@C3N4 photocatalyst.","authors":"Minh Viet Nguyen, Phong Nguyen Thanh, Minh Phuong Nguyen, Huong Pham Thi, Nhat Minh Dang","doi":"10.1080/03601234.2025.2459996","DOIUrl":"10.1080/03601234.2025.2459996","url":null,"abstract":"This study explores the photocatalytic decomposition of antibiotic residues, including tetracycline (TCR) and amoxicillin (AMR), from wastewater using Bi2O3@C3N4 photocatalyst. The characterization findings revealed that Bi2O3@C3N4 exhibited significantly improved light absorption properties and enhanced charge separation efficiency. According to the experimental results, Bi2O3@C3N4 exhibited high degradation efficiencies of 77.6% for TCR and 83.2% for AMR in wastewater samples. It also displayed excellent reusability, with the removal efficiencies of TCR and AMR remaining at 71.3 and 78.8%, respectively, after five cycles. Additionally, the photodegradation of TCR and AMR using Bi2O3@C3N4 is suggested to follow the Z-scheme pathway. The results of this study could be utilized for removing antibiotic pollutants from wastewater, thereby reducing their impact on human health and the environment.","PeriodicalId":15720,"journal":{"name":"Journal of Environmental Science and Health Part B-pesticides Food Contaminants and Agricultural Wastes","volume":" ","pages":"121-128"},"PeriodicalIF":1.4,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143364804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Selectivity of herbicides applied in the post-emergence of industrial hemp (Cannabis sativa L.). 工业大麻苗期除草剂的选择性研究。

IF 1.4 4区农林科学

Journal of Environmental Science and Health Part B-pesticides Food Contaminants and Agricultural Wastes Pub Date : 2025-01-01 Epub Date: 2025-03-07 DOI: 10.1080/03601234.2025.2475647

José Carlos Fernandes Júnior, Maura Gabriela da Silva Brochado, Sergio Barbosa Ferreira Rocha, Kassio Ferreira Mendes

{"title":"Selectivity of herbicides applied in the post-emergence of industrial hemp (Cannabis sativa L.).","authors":"José Carlos Fernandes Júnior, Maura Gabriela da Silva Brochado, Sergio Barbosa Ferreira Rocha, Kassio Ferreira Mendes","doi":"10.1080/03601234.2025.2475647","DOIUrl":"10.1080/03601234.2025.2475647","url":null,"abstract":"The objective of this study was to evaluate the selectivity of four post-emergence herbicides in the cultivation of industrial hemp. Hemp was grown in 3.5 L pots with inert substrate in the absence of weeds throughout the crop cycle. The experimental design adopted was a randomized, complete block design with five treatments and four replications. The herbicides atrazine (2.500 g a.i./ha), clethodim (96 g a.i./ha), fomesafen (250 g a.i./ha), and nicosulfuron (54 g a.i./ha) were applied when the plants were approximately 35 days after cutting. Visual assessments of herbicide-induced injury symptoms were conducted, along with measurements of the number of leaves, plant height, stem diameter, and total aerial part dry mass. When nicosulfuron was applied after emergence, it caused 60.0% damage 21 days after application (DAA), which changed the number of leaves, height, stem diameter, and total aerial part dry mass of hemp plants in a big way. Fomesafen caused 42.5% injury at 5 DAA, and atrazine caused 42.5% injury at 21 DAA, which may compromise the final yield. Therefore, it is recommended to use only clethodim, a selective herbicide for broadleaf plants such as hemp, as it did not cause significant injuries during the evaluation period.","PeriodicalId":15720,"journal":{"name":"Journal of Environmental Science and Health Part B-pesticides Food Contaminants and Agricultural Wastes","volume":" ","pages":"148-160"},"PeriodicalIF":1.4,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143585938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Construction of Fe₂O₃/g-C₃N₅ heterojunction and photocatalytic degradation of antibiotics and mechanism analysis. Fe2O3/g-C3N5异质结的构建及其光催化降解抗生素的机理分析

IF 1.4 4区农林科学

Journal of Environmental Science and Health Part B-pesticides Food Contaminants and Agricultural Wastes Pub Date : 2025-01-01 Epub Date: 2025-01-23 DOI: 10.1080/03601234.2025.2455303

Chenxi Zhang, Jingyi Wang, Sile Liu, Yue Han, Jinyu Wang, Hailong Wang

{"title":"Construction of Fe2O3/g-C3N5 heterojunction and photocatalytic degradation of antibiotics and mechanism analysis.","authors":"Chenxi Zhang, Jingyi Wang, Sile Liu, Yue Han, Jinyu Wang, Hailong Wang","doi":"10.1080/03601234.2025.2455303","DOIUrl":"10.1080/03601234.2025.2455303","url":null,"abstract":"The widespread use of antibiotics has led to significant water pollution. Photocatalysis can effectively degrade antibiotics, but the performance is greatly limited by the photogenerated carrier recombination in the photocatalytic material g-C3N5. Constructing heterojunctions can enhance interfacial charge transfer, leading to more stable and efficient photocatalysis. This study synthesized a Fe2O3/g-C3N5 heterojunction using the solvothermal method. The Z-scheme charge transfer mechanism facilitated efficient separation of photogenerated carriers, preserving photoelectrons and holes with high redox activity. This process generated a substantial amount of highly reactive free radicals such as ·O2- and ·OH, enabling the efficient degradation of tetracycline (TC). Under the optimal conditions of initial concentration of TC was 200 mg/L, the quality ratio of Fe2O3 and g-C3N5 was 1:2, the catalyst dosage was 50 mg and pH = 7.0, the TC degradation rate reached 92.46% within 60 min of visible light irradiation. The photocatalytic activity's enhancement was attributed to broad spectral absorption and effective photogenerated carrier separation. Furthermore, the photocatalytic performance can be affected by the presence of inorganic salt ions such as HCO3- and CO32-.","PeriodicalId":15720,"journal":{"name":"Journal of Environmental Science and Health Part B-pesticides Food Contaminants and Agricultural Wastes","volume":" ","pages":"79-90"},"PeriodicalIF":1.4,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143028964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Laboratory assessment of Lantana camara L. extracts for selective inhibition of rice weeds: phytotoxicity, crop response, and phenolic composition. 植物毒性、作物反应和酚类成分对水稻杂草选择性抑制的实验室评价。

IF 1.4 4区农林科学

Journal of Environmental Science and Health Part B-pesticides Food Contaminants and Agricultural Wastes Pub Date : 2025-01-01 Epub Date: 2025-04-23 DOI: 10.1080/03601234.2025.2494190

Ho Le Thi, Nguyen Thi Thuy Trang, Nguyen Gia Huy, Nguyen Thi Ngan, Nguyen The Cuong

{"title":"Laboratory assessment of Lantana camara L. extracts for selective inhibition of rice weeds: phytotoxicity, crop response, and phenolic composition.","authors":"Ho Le Thi, Nguyen Thi Thuy Trang, Nguyen Gia Huy, Nguyen Thi Ngan, Nguyen The Cuong","doi":"10.1080/03601234.2025.2494190","DOIUrl":"https://doi.org/10.1080/03601234.2025.2494190","url":null,"abstract":"Weeds significantly reduce rice (Oryza sativa L.) yield and grain quality, highlighting the need for sustainable weed management strategies. This study evaluated the bioherbicidal potential of methanolic extracts from Lantana camara L. (LC) against dominant rice field weeds Echinochloa crus-galli (BY), Leptochloa chinensis (RS), and Fimbristylis miliacea (GF), and examined the recovery responses of rice varieties OM18 and OM5451. At 0.48 g/mL, LC extract markedly suppressed shoot and root growth in RS, and GF, with root inhibition reaching 95.14-100%. BY was less sensitive, especially in shoot growth (24.21% inhibition). Interestingly, low concentrations (0.01-0.06 g/mL) promoted early rice growth, suggesting hormetic stimulation. IC90 values confirmed differential sensitivity: GF was most susceptible (0.129 g/mL), while BY was highly resistant (2.658 g/mL). OM5451 showed greater recovery after 168 h. HPLC analysis identified major phenolic compounds as veratric acid (5.605 µg/mL), p-coumaric acid (1.533 µg/mL), vanillic, salicylic, and gallic acids likely contributing to LC's phytotoxicity. While the findings underscore that LC may be potent as a selective natural herbicide, this laboratory-based study remains exploratory. Field-scale validation, ecological impact assessments, and formulation refinement are essential next steps. Nevertheless, this work highlights LC's dual role, as both an invasive species and a possible bioresource for eco-friendly weed control.","PeriodicalId":15720,"journal":{"name":"Journal of Environmental Science and Health Part B-pesticides Food Contaminants and Agricultural Wastes","volume":"60 5","pages":"208-218"},"PeriodicalIF":1.4,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144026686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An approach for the treatment of chlorpyrifos and atrazine pesticides using graphitic carbon nitride photocatalyst. 氮化石墨碳光催化剂处理毒死蜱和莠去津农药的研究。

IF 1.4 4区农林科学

Journal of Environmental Science and Health Part B-pesticides Food Contaminants and Agricultural Wastes Pub Date : 2025-01-01 Epub Date: 2025-04-15 DOI: 10.1080/03601234.2025.2491190

Thi Thu Hien Chu, Tuan B H Nguyen, Pham Thi Huong

{"title":"An approach for the treatment of chlorpyrifos and atrazine pesticides using graphitic carbon nitride photocatalyst.","authors":"Thi Thu Hien Chu, Tuan B H Nguyen, Pham Thi Huong","doi":"10.1080/03601234.2025.2491190","DOIUrl":"https://doi.org/10.1080/03601234.2025.2491190","url":null,"abstract":"This study evaluated an effective approach for the removal of chlorpyrifos (Chp) and atrazine (Atz) pesticides using graphitic carbon nitride photocatalyst (g-CN). Experimental results showed that under solar light, g-CN was able to remove 82.4% of Chp and 73.6% of Atz at an initial concentration of 10 mg L-1. It also exhibited that the total organic carbon removal efficiency was 95.3% for Chp and 84.7% for Atz after 150 min. Besides, the removal of Chp and Atz is more effective under solar light, with a degradation efficiency of around 10% higher than that of visible light. The characterization results confirmed the high purity of the g-CN photocatalyst and its strong UV light absorption ability, with some extension into the visible region. In addition, recent methods used for the removal of Chp and Atz were discussed and evaluated. It showed that the photocatalytic process is the most widely used method for removing Chp and Atz compared to other techniques. However, the development of suitable photocatalytic materials based on g-CN should be further explored to enhance their efficiency under visible light.","PeriodicalId":15720,"journal":{"name":"Journal of Environmental Science and Health Part B-pesticides Food Contaminants and Agricultural Wastes","volume":"60 5","pages":"200-207"},"PeriodicalIF":1.4,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143988232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phytotoxic effects of leaf extract of Esenbeckia leiocarpa Engl. on germination and initial development of weeds. Esenbeckia leiocarpa Engl.叶提取物对杂草发芽和初期生长的植物毒性作用。

IF 1.4 4区农林科学

Journal of Environmental Science and Health Part B-pesticides Food Contaminants and Agricultural Wastes Pub Date : 2025-01-01 Epub Date: 2025-03-22 DOI: 10.1080/03601234.2025.2477852

Lucas Barbosa, João Paulo Bernardi Ferreira, Lucas Renan da Fonseca, Patricia Andrea Monquero, Victor Augusto Forti, Andreia Cristina Silva Hirata

{"title":"Phytotoxic effects of leaf extract of Esenbeckia leiocarpa Engl. on germination and initial development of weeds.","authors":"Lucas Barbosa, João Paulo Bernardi Ferreira, Lucas Renan da Fonseca, Patricia Andrea Monquero, Victor Augusto Forti, Andreia Cristina Silva Hirata","doi":"10.1080/03601234.2025.2477852","DOIUrl":"10.1080/03601234.2025.2477852","url":null,"abstract":"Bioherbicides, including plant extracts, allelochemicals, and microbial agents, offer sustainable alternatives for weed control in agriculture. In Brazil, the native tree Esenbeckia leiocarpa (guarantã) shows potential phytotoxic effects in weeds species. This study evaluates aqueous extracts from its aerial parts as a substitute for herbicides, focusing on their impact on weed germination and initial growth. The experiment used a completely randomized 7 × 4 factorial design with seven extract concentrations (0, 5, 10, 20, 40, 80, and 100%) and four weed species (Amaranthus hybridus, Bidens pilosa, Euphorbia heterophylla, and Digitaria insularis), with four replicates per treatment. Germination and germination speed index dropped significantly even at 5%, nearly ceasing at 20% or higher. The results indicate a non-linear dose-response relationship, suggesting that increasing the extract concentration beyond 20% does not result in a proportional reduction in germination. Pre-germinated seeds showed reduced radicle length and fresh mass from 5%, with E. heterophylla least affected and D. insularis most sensitive. Phytotoxic effects increased with concentration, except for D. insularis, where phytotoxicity stabilized (90% phytotoxicity) at concentrations above 20%. When applied to leaves, phytotoxicity was minimal, ranging from 5 to 10%, and had negligible effect on reducing fresh mass. The findings indicate that the response to E. leiocarpa leaf extract varies among the weed species evaluated, primarily affecting germination with minimal impact when applied to leaves. Thus, E. leiocarpa demonstrates potential as a bioherbicide for pre-emergent applications against the species studied.","PeriodicalId":15720,"journal":{"name":"Journal of Environmental Science and Health Part B-pesticides Food Contaminants and Agricultural Wastes","volume":" ","pages":"170-178"},"PeriodicalIF":1.4,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143677087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fmoc-Pro-Phe-OMe dipeptide carbon sensor for simultaneous detection of chloramphenicol (CP) and furazolidone (FZ) toxic residues in food samples. 用于同时检测食品样品中氯霉素（CP）和呋喃唑酮（FZ）毒性残留的 Fmoc-Pro-Phe-OMe 二肽碳传感器。

IF 1.4 4区农林科学

Journal of Environmental Science and Health Part B-pesticides Food Contaminants and Agricultural Wastes Pub Date : 2025-01-01 Epub Date: 2024-12-13 DOI: 10.1080/03601234.2024.2437925

Raghavendra R B, Sathish Reddy, Dalli Kumari, Abhishek K J, Nagendra G, Gururaj K J, Nirajan E, Harish K N

{"title":"Fmoc-Pro-Phe-OMe dipeptide carbon sensor for simultaneous detection of chloramphenicol (CP) and furazolidone (FZ) toxic residues in food samples.","authors":"Raghavendra R B, Sathish Reddy, Dalli Kumari, Abhishek K J, Nagendra G, Gururaj K J, Nirajan E, Harish K N","doi":"10.1080/03601234.2024.2437925","DOIUrl":"10.1080/03601234.2024.2437925","url":null,"abstract":"In this work, we fabricated the Fmoc-Pro-Phe-OMe modified carbon paste electrode (FPPO/MCPE) and used it for electrochemical detection of CP and FZ in a 0.1 M phosphate buffer solution (pH = 7). We characterized the Fmoc-Pro-Phe-OMe and applied it for the electrochemical detection of CP and FZ. The Mass spectroscopy, 1HNMR, and FTIR measurements confirm the Fmoc-Pro-Phe-OMe chemical structure. Studying electrochemical sensor characteristics, variation of scan rate parameters, and electrode surface area is crucial for understanding and optimizing the performance of modified and unmodified carbon paste electrodes. The FPPO/MCPE-modified carbon paste electrode has better sensing capabilities than the unmodified bare carbon paste electrode (BCPE). The FPPO/MCPE sensor has two linear ranges: 50-450 μM (CP) with a detection limit of 0.014 μM and 50-450 μM (FZ) with a detection limit of 0.015 μM. The FPPO/MCPE sensor is highly sensitive, measuring 4.25 µA/µM/cm2 for CP and 4.1 µA/µM/cm2 for FZ. Scan rate and concentration tests demonstrate that the oxidation of CP and FZ is a diffusion-controlled electrode process. The FPPO/MCPE sensor also demonstrates excellent repeatability, reproducibility, stability, and selectivity for detection of CP and FZ. The use of FPPO/MCPE-sensor is demonstrated for the detection of FZ and CP in milk and honey samples.","PeriodicalId":15720,"journal":{"name":"Journal of Environmental Science and Health Part B-pesticides Food Contaminants and Agricultural Wastes","volume":" ","pages":"1-14"},"PeriodicalIF":1.4,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142822279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0