INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
·
2023
·
IF 2.6
Yanli Bian,Gang Guo,Fengmao Liu,Xiaohan Li
The residue behaviours of difenoconazole, bifenthrin, thiamethoxam and its metabolite clothianidin on representative crops such as cucumber, bitter gourd, loofah, zucchini, tomato, cherry tomato, eggplant, cowpea, kidney bean, celery, and fennel were investigated. The effects of factors such as fruit size, property of epidermis, leaf size and others on pesticide residues were studied, and then analysed whether these crops are suitable for the same group. Results indicated residue extrapolation could be made between the different crop groups or subgroups. It could be extrapolated from high-risk residue crops to the low-risk residue crops. Cherry tomato or eggplant could be extrapolated to tomato, and bitter gourd or loofah could be extrapolated to cucumber or zucchini, and the reverse was unacceptable. For these four vegetable groups, the different edible parts led to a significant difference in pesticide residues, celery and fennel had higher residue risk because the edible parts were whole plants including the leaves. The residue difference in the same edible parts of the different crop groups was not obvious, such as the Fruiting vegetables, Cucurbits group and the Fruiting vegetables, other than Cucurbit group. The processing factor (PF) extrapolation was more reasonable because crop varieties had no significant effect on pesticide residues in processed commodities. From the perspective of pesticide residues, representative crops were proposed and the rationality of crop classification and residue extrapolation was analysed. These results could promote the process of pesticide registration and the settlement of Maximum Residue Limit (MRL) standards, and further solve the missing of MRL for minor crops.
研究领域:
植物保护
·
食品安全
✓ 已验证
产品关联
DOI
高影响因子
FOOD CHEMISTRY
·
2025
·
IF 9.8
Litao Hao,Yangchun Han,Shixi Zhang,Yingjie Luo,Kunli Luo
Trace elements in crops can affect the bioavailability of Se. To investigate the effect of trace element on Se bioavailability, trace element concentrations and Se bioavailability in crops from Se-rich area (Langao County, China) were analyzed using the physiologically-based extraction test (PBET) digestion model. Vegetables (rapes, radishes, and potatoes) had higher concentrations of total and bioavailable Se compared to grains (corn, rice, and sweet potatoes), suggesting they are more effective for Se supplementation. The bioavailability of Se was higher in the intestinal phase than in the gastric phase. Trace elements were positively correlated with the increased bioavailability of Se in corn, potato, and rape. Fe was a key element in increased bioavailability of Se in the gut model. Therefore, trace elements, particularly Fe, in crop can enhance Se bioavailability, suggesting their potential use in Se supplementation. The findings of this study provide valuable insights for dietary interventions to Se deficiencies.
研究领域:
营养学
·
植物学
✓ 已验证
DOI
PubMed
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2025
·
IF 6.2
Majid Ali Mangi,Benwang Li,Peigao Duan,Changqing Cao
In this study, a green and effective method for the production of acetic acid from crop residues via a two-step process (hydrolysis followed by oxidation) in subcritical water was proposed. For the first step, CO 2 is used to catalyze the hydrolysis of crop residues to obtain intermediates. Next, the intermediates were oxidized in the presence of O 2 to obtain acetic acid. The effects of crop residue type on the yield of acetic acid were first studied. Among all the crop residues selected, the corn cobs provided the highest acetic acid yield, which reached 16.70 wt% at 270 °C for 20 min; 0.11 mol CO 2 /corn cob (g) was added for the first step, and 250 °C was added for 50 min, with 0.15 mol O 2 /corn cob (g) added for the second step. By employing corn cobs as feedstock, the effects of the corn cob/water mass ratio, temperature, time, and CO 2 loading in the first step and the effects of temperature, time, and O 2 loading in the second step on the yield of acetic acid were examined. Among all the parameters examined, the corn cob/water mass ratio had the greatest influence on the acetic acid yield. The highest acetic acid yield of 25.80 wt% was obtained at a corn cob/water mass ratio of 0.0016:1. Under fixed reaction conditions, recycling the product mixture can increase the concentration of acetic acid in the final product and reduce the cost of subsequent separation and purification.
研究领域:
化学工程
·
可再生能源
✓ 已验证
产品关联
DOI
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2025
·
IF 6.2
Mengyao Cai,Xiaofeng Wang,Na Zhu,Wanjin Hu,Shuxiao Zhang,Shuishi Tan,Chunhua Zhang,Sijie Zhou,Lixin Du,Liangjun Xia
The excessive use of antibiotics and subsequent release into the aquatic environment causes deleterious effects on organisms. Using easily separable catalysts to remove antibiotics from aquatic environments is an effective strategy to release the burden of the aquatic ecosystem. Herein, as the natural porous cellulose fiber, Juncus effusus (JE) exhibits distinctive designability on the functional materials. The JE-based W-doped Bi 2 S 3 photocatalysts (W-Bi 2 S 3 -JE) were obtained by in-situ coating on the surface of JE fibers to improve the photodegradation performance of tetracycline (TC) antibiotic pollutants. Owing to the natural porous net-working structure of JE fiber, the aggregation of particles is reduced, promoting adsorption and photocatalysis. Under the condition of pH = 3.0 and mass of photocatalyst is 100 mg, the photodegradation efficiency is 98 % under irradiation for 180 min and the photodegradation efficiency could maintain 78 % after five cycles. Finally, the cultivation of crops was conducted to investigate the purification property of the solution after photocatalytic degradation. Compared with the solution before photodegradation, mung bean seeds can take root and germinate well irrigated by the solution after photodegradation and the growth is as strong as that of agricultural irrigation water. The W-Bi 2 S 3 -JE photocatalyst provides an attractive approach to restore the aquatic ecosystem polluted by antibiotics of TC, improving the application potential in environmental remediation.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
·
2021
·Vol. 102
·期 4
·1640-1650
·
IF 3.639
Zongming Sui,Jie Yin,Jianguo Huang,Ling Yuan
BACKGROUND Some soil microorganisms can mobilize unavailable phosphorus (P) in soils for plant use and increase P fertilizer efficiency. Thus, an abiotic P solubilization experiment and fungal incubation in solution and soil were conducted to investigate the mobilization of various P compounds by a new white-rot fungus Ceriporia lacerata HG2011. The crop agronomic performances were then evaluated in the winter barley–summer maize–winter wheat rotation field. RESULTS Ceriporia lacerata HG2011 had a wide P mobilization spectrum and mobilized P by different mechanisms depending on P sources supplied in liquid culture. The chief mechanism employed by this fungus was the production of protons in mobilizing Ca 3 (PO 4 ) 2 , low-molecular-weight organic acids and other unknown substances in FePO 4 and AlPO 4 , phytase (an inducible enzyme in the presence of phytate) in phytate, and phosphatase in lecithin and ribonucleic acid, respectively. As a result of the large fungal biomass, P accumulated in the hypha should also be considered in the assessment of the fungal P mobilization, and not just only soluble inorganic P. As C. lacerata HG2011 colonized on and in the test soil, phosphatase and phytase activities were enhanced but pH decreased in the soil, leading to P mobilization. The application of this fungus mobilized soil P, increased crop P uptake and yields, and consecutively reduced P fertilizer use without yield sacrifices in the multiple crop rotation field. CONCLUSION C. lacerata HG2011 showed a new use with respect to mobilizing soil P and reducing P fertilizer input in modern agriculture beyond medical purposes, environmental protection and biofuel production. © 2021 Society of Chemical Industry.
研究领域:
农业科学
·
微生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Crop & Pasture Science
·
2023
·Vol. 74
·期 12
·1318-1333
·
IF 1.9
Jackson Nkoh Nkoh,Peng Guan,Ren-yong Shi,Ru-hai Wang,Jiu-yu Li,Ren-kou Xu
Context Carbon (C) and nitrogen (N) transformation processes in soils play an important role in the fluctuation of soil pH. Incorporation of chitosan and crop straws, byproducts from fishery and agriculture, into acidic soils can increase soil pH through decarboxylation, decomposition, N immobilisation and ammonification.Aims The study was designed to evaluate the transformation of organic N and C from chitosan and/or crop straws and their effects on soil physicochemical properties.Methods Chitosan, rice straw and maize straw were incubated with two acidic Ultisols from Langxi (Soil 1) and Yingtan (Soil 2) differing in initial pH. Six treatments were prepared in triplicate: control (no amendment), 4% chitosan, 4% rice straw, 4% maize straw, 2% chitosan+2% rice straw, and 2% chitosan+2% maize straw. Soil pH, N transformation and CO2 evolution were estimated at different time intervals.Key results After 40days of incubation, control soil pH decreased by 0.35 and 0.32 units for Soils 1 and 2, respectively. Rice straw, maize straw, chitosan, rice straw–chitosan and maize straw–chitosan significantly increased soil pH by 0.51, 0.17, 2.27, 1.78 and 2.02 units for Soil 1, and 0.71, 0.16, 0.67, 0.49 and 0.68 units for Soil 2 (P<0.01). The respective treatments decreased exchangeable acidity by 62%, 51%, 95%, 95% and 95% for Soil 1 and 75%, 69%, 88%, 88% and 87% for Soil 2. In treatments containing chitosan, the pH increase resulted from ammonification of organic N and mineralisation of organic C, with the effect higher in Soil 1 than Soil 2.Conclusions Amending acidic soils with chitosan and crop residues can effectively increase soil pH and slow soil acidification rate.Implications This study provides useful information for amelioration of acidic soils.
研究领域:
土壤学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Nano Materials
·
2024
·
IF 5.3
Barbara Ting Wei Ang,Yin Mei Fong,Chew Beng Soh,Szu-Cheng Chien,Hui An,Ryan Hong Soon Tay
Tropical urban greenhouses are prone to heat trapping due to higher daily temperatures compared to temperate climates, and a high energy cost is required to maintain optimal growth conditions. Lanthanide-based nanoparticles are known for their capability of performing upconversion, a process where lower energy photons are absorbed and converted to a single photon of higher energy. These upconversion nanoparticles (UCNPs) possess the innate ability to convert infrared energy to visible light, thereby facilitating efficient heat removal while simultaneously providing upconverted visible light. Consequently, the incorporation of such material into greenhouse façades presents an attractive zero-energy alternative to commonly used greenhouse cooling technologies. In this study, NaYF4:Yb3+/Er3+ UCNPs were synthesized and coated onto a simulated greenhouse enclosure with Pak Choi plants to observe the effect of such a film coating on actual crop growth. A reduction of the interior temperature, increased sunlight diffusion, and improved crop yield were demonstrated in this work, showing promising results for future urban greenhouse façade applications.
研究领域:
农业科学
·
材料科学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
WASTE MANAGEMENT
·
2021
·
IF 7.145
Xuehua Shen,Feng Yan,Zhen Zhang,Chunyan Li,Shiyin Zhao,Zuotai Zhang
Syngas production from biomass gasification is a promising technology, which is widely used in the chemical industry. Crop straw and red mud are typical agricultural and industrial wastes, respectively, which are cheap and widespread; however, they cause serious environmental pollution due to the open burning of straw and the toxicity and alkalinity of red mud. In the present work, we converted crop straw into syngas by chemical looping gasification using red mud as a sinter-resistant oxygen carrier. The reactivity of red mud, the syngas yields, and the air pollutant emissions under different conditions were systematically investigated through a thermo-gravimetric analyzer and mass spectrometer. Compared with pure Fe 2 O 3 , red mud can promote the syngas yields from crop straw gasification owing to the presence of inert Al 2 O 3 and SiO 2 . Red mud can effectively reduce the emission of air pollutants owing to the presence of alkaline components such as CaO and Na 2 O. As the Fe 2 O 3 /fuel mass ratio increases, the syngas yield increases and the air pollutant emissions simultaneously reduce; whereas the syngas yield and the air pollutant emissions decrease with increasing heating rate. After calcination at high temperature, the structure of red mud remains stable with slight agglomeration, and can be easily regenerated. Therefore, the promising results provide a breakthrough for efficient utilization and disposal of both crop straw and red mud.
研究领域:
环境科学
·
能源工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Omega
·
2022
·
IF 4.132
Xia Wang,Wulan Zeng,Xiangjun Kong,Chunling Xin,Yani Dong,Xiude Hu,Qingjie Guo
To achieve the “double carbon” (carbon peak and carbon neutrality) target, low-cost CO2 capture at large CO2 emission points is of great importance, during which the development of low-cost CO2 sorbents will play a key role. Here, we chose peanut shells (P) from crop waste as the raw material and KOH and K2CO3 as activators to prepare porous carbons by a simple one-step activation method. Interestingly, the porous carbon showed a good adsorption capacity of 2.41 mmol/g for 15% CO2 when the mass ratio of K2CO3 to P and the activation time were only 0.5 and 0.5 h, respectively, and the adsorption capacity remained at 98.76% after 10 adsorption–desorption cycle regenerations. The characterization results suggested that the activated peanut shell-based porous carbons were mainly microporous and partly mesoporous, and hydroxyl (O–H), ether (C–O), and pyrrolic nitrogen (N-5) functional groups that promoted CO2 adsorption were formed during activation. In conclusion, KOH- and K2CO3-activated P, especially K2CO3-activated P, showed good CO2 adsorption and regeneration performance. In addition, not only the use of a small amount of the activator but also the raw material of crop waste reduces the sorbent preparation costs and CO2 capture costs.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
BIOSENSORS & BIOELECTRONICS
·
2017
·
IF 7.78
Hongfei Gao,Luke Wen,Yuhua Wu,Zhifeng Fu,Gang Wu
The development of genetically modified (GM) insect-resistant crops has aroused great public concern about the risks on the eco-environment resulting from a release of toxic Cry proteins (such as Cry1Ab) to the soil. Therefore, it is of crucial importance to measure the Cry proteins level and the GM crops content. Here, we have tested for the first time a method that uses novel carbon nanospheres (CNPs) label-free electrochemiluminescent (ECL) immunosensor for the ultrasensitive quantification of Cry1Ab and GM crops. In this work, novel CNPs were prepared from printer toner with a very facile approach, and linked with anti-Cry1Ab antibodies to modify a golden working electrode . The immunoreaction between Cry1Ab and its antibody formed an immunocomplex on the bioreceptor region of the sensor, which inhibited electron transfer between the electrode surface and the ECL substance, leading to a decrease of ECL response. Under the optimal conditions, the fabricated label-free ECL immunosensor determined Cry1Ab down to 3.0 pg mL −1 within a linear range of 0.010−1.0 ng mL −1 , showing significant improvement of sensitivity than that of most previous reports. Meanwhile, the proposed method was successfully applied for GM rice BT63 and GM maize MON810 detections down to 0.010% and 0.020%, respectively. Due to its outstanding advantages such as high sensitivity, ideal selectivity, simple fabrication, rapid detection, and low cost, the developed method can be considered as a powerful and pioneering tool for GM crops detection. Its use can also be extended to other toxin protein sensing in foods.
研究领域:
生物技术
·
环境科学
·
农业科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
·
2021
·
IF 4.556
Yue-Hong Pang,Yi-Ying Wang,Meng-Meng Sun,Xiao-Fang Shen
The cauliflower mosaicvirus 35S (CaMV35S), as the most common promoter, has a usage rate of 70 % in transgenic crops, especially in dicots. Herein, a visual detection method of rolling circle amplification (RCA) combined with DNAzyme technology was developed for the determination of CaMV35S gene. A template sequence of the G-quadruple gene was designed for combining with the target gene CaMV35S. When the target gene existed, the RCA reaction occurred through the action of the enzyme, and the product combined with hemin to generate DNAzyme, which catalyzed the color reaction of 2′-hydrazine-bis-3-ethylbenzothiazolin-6-sulfonic acid (ABTS). Under the optimal experimental conditions, the linear range is 1 × 10 −13 ∼1 × 10 -8 mol/L, and the detection limit is 3 × 10 -14 mol/L (S/N = 3). The method has been successfully applied to standard samples and practical samples (soybean and tofu). For verifying the feasibility and reliability, real-time fluorescent quantitative PCR method was used to detect the target gene CaMV35S, and the results were in good agreement with those of our method, indicating that our developed method can be used for the determination of actual samples.
研究领域:
分子生物学
·
基因工程
·
农业科学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Zixuan Liu,Junhui Li,Yongxu Liu,Qi Sun,Dengchao Liang,Xuan Yang,Wenwen Zhao,Yafang Zhang,Hong Liu,Jiebing Tang,Weijia Zhou,Guobin Xue
Saline soil remediating is crucial to enhance arable land and address the global food crisis. One of the great challenges is to develop low-cost and effective technology to directly extract salt from saline soil. Herein, we designed a biomimetic solar-driven salt extractor to extract the salt from saline soil with the fact that the salt will migrate along with water flow during evaporation process. A salt-resistant polyacrylic acid sodium hydrogel was used as the evaporator to ensure prolonged stable operation and salt was enriched in a cotton fabric beneath the evaporator. In one desalination cycle of 10 days under one solar irradiation, the soil salinity was reduced from 27 g kg −1 to 1.4 g kg −1 , thereby meeting the requirements for normal agricultural crops. Under outdoor conditions, similar salt extraction process could be reduced to 7 days with a desalination efficiency of 95.2 %, and the desalted soil could be used to plant ryegrass. We envisioned that such a high-efficiency solar-driven salt extraction strategy could have great potential application in saline land remediation.
研究领域:
环境科学
·
农学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）