Residue levels, processing factors and risk assessment of pesticides in ginger from market to table

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 470, P. 134268 - 134268

Published: April 9, 2024

Language: Английский

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Fluorometric detection of copper and imidacloprid using nitrogen‐doped graphitic carbon dots: A promising method for environmental monitoring

Luminescence, Journal Year: 2024, Volume and Issue: 39(8)

Published: Aug. 1, 2024

Abstract Pesticides in environmental samples pose significant risks to ecosystems and human health since they require precise efficient detection methods. Imidacloprid (IMI), a widely used neonicotinoid insecticide, exemplifies these hazards due its potential toxicity. This study addresses the urgent need for improved monitoring of such contaminants by introducing novel fluorometric method detecting IMI using nitrogen‐doped graphite carbon dots (N‐GCDs). The sensor operates quenching fluorescence through interaction Cu 2+ ions with N‐GCDs. Subsequently, binds imidazole group, chelates , restores alternating behavior allows accurate identification both IMI. exhibits linear ranges 20–100 nM 10–140 μg/L IMI, limits 18 1.2 μg/L, respectively. high sensitivity this enables real‐world samples, which underscores practical use agricultural safety.

Language: Английский

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The Impact of Digital Literacy on Farmers’ Green Production Behavior: Mediating Effects Based on Ecological Cognition

Sustainability, Journal Year: 2024, Volume and Issue: 16(17), P. 7507 - 7507

Published: Aug. 30, 2024

Farmers’ green production behavior is one of the main determinants sustainability agricultural economy. In this study, Ordered Logit, OLS, and 2SLS models were conducted to evaluate impact digital literacy on farmers’ behavior. On basis, Propensity Score Matching (PSM) method was deal with endogeneity bias that may result from sample self-selection problem. We also adopt mediation effect model test mediating mechanism ecological cognition between The results showed three different types significantly improved found by 19.87%, 15.92%, 24.16% through learning, social, transaction literacy. Meanwhile, improves increasing cognition. demonstrate Therefore, policies increase among farmers should be further promote

Language: Английский

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Thermal Desorption and Extraction Coupled With Gas Chromatography and Mass Spectrometry for the Quantification of Polystyrene Nanoplastic in Pak Choi

Rapid Communications in Mass Spectrometry, Journal Year: 2025, Volume and Issue: 39(14)

Published: April 14, 2025

ABSTRACT Rationale It has been demonstrated that microplastics and nanoplastics (MNPs) can be found in soil MNPs taken up by plants. In order to conduct a risk assessment for human consumption, it is necessary have an estimate of the mass concentration plastics crops. A new thermal extraction desorption coupled with gas chromatography spectrometry (TED‐GC/MS) method developed analysis polystyrene (PS) pak choi. Methods this study, thermogravimetric analyser (TGA) equipped absorption unit (TAU), was GC system (TDU2), (5%‐phenyl)‐methylpolysiloxane column GC/MSD single quadrupole spectrometer. The systems were connected via MultiPurposeSampler (MPS). Samples pyrolyzed TGA; pyrolysis products trapped on PDMS polymer bar, desorbed TDU, separated analysed GC/MS system. Results purpose study investigate qualitative quantitative detection PS determined limit (LOD) 0.09 μg, quantification (LOQ) 0.28 μg absolute. Plants treated 100 nm particles 19.0 ± 6.7 μg/g DM plants 500 64.1 8.6 found. Conclusions This first use TED‐GC/MS different sizes choi thus provides important basis determination vegetables.

Language: Английский

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Physiological and nutritional responses of two pakchoi (Brassica chinensis) cultivars to different red-blue light ratios in controlled environment

Frontiers in Sustainable Food Systems, Journal Year: 2025, Volume and Issue: 9

Published: April 16, 2025

There is a growing interest in cultivating pakchoi under controlled environment agriculture. However, research on establishing the ideal environmental conditions for plant factories remains insufficient. Therefore, this study, we investigated optimal red-to-blue light ratio enhancing plants’ nutritional quality and growth. Five treatments (B, R 2 B 1 , 4 8 R) were employed our while white (W) provided by fluorescent lamps was served as control. The cultivars used ‘Jingguan No. 1′, green pakchoi, ‘Ziguan red pakchoi. After 20 days of treatment application, observed significant improvements dry weight leaf area plants R. Specifically, increased 14.8% 26.7% 41.8% 81.1% compared to control treatment. Additionally, promoted net photosynthetic rate (P n ) enhanced stomatal conductance (G s ), intercellular CO concentration (C i transpiration (T r both varieties. Treatment facilitated accumulation pigments cultivars. On other hand, found be more conducive glucosinolate (GSc) Notably, concentrations vitamin C (V c soluble sugar 78.5 31.4%, respectively, with those Similarly, Vc, sugar, anthocyanin 31.6, 177.8, 114.4%, These findings indicate that different varieties exhibit distinct responses light-quality combinations.

Language: Английский

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Laboratory Assessment of the Efficacy of Some Biopesticides on Aspects of the Life Performance of the Callsobruchus maculates

European Journal of Theoretical and Applied Sciences, Journal Year: 2024, Volume and Issue: 2(4), P. 649 - 656

Published: July 1, 2024

Callosobruchus maculatus, the Southern Cowpea Beetle, is one of most damaging pests that feeds on stored seeds, severely reducing their nutritional content by compromising quality and marketability. It critical to identify a viable substitute for chemical pesticides, which not only have high costs but also numerous detrimental effects both humans environment, as result beetles' development resistance them. Therefore, goal current study was employ various biopesticides made from entomopathogenic fungus, are fungi feed insects, investigate potential these pesticides life performance C. significant nutrition economy. The aimed find promising alternative using derived fungi. results laboratory showed effect two biopesticides, L. lecanii M. anisopliae, in increasing mortality rate eggs adult stages maculatus. After 9 days exposure biopesticide, anisopliae produced maximum adults at concentration 5x10⁷ g/L. lecani iwere exposed had lowest death day later. Based study's findings, it can be said help control Beetle lessen need pesticides.

Language: Английский

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Occupational Exposure to Pesticides, Personal Protection, and Willingness to Reduce Chemical Sprayings Among Iranian Greenhouse Farmers

Journal of Agromedicine, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 13

Published: Oct. 8, 2024

The level of greenhouse farmers' personal protection in pesticide use and the possibility environmental through willingness to reduce chemical sprayings were assessed Khuzestan Province, Iran.

Language: Английский

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