ACS agricultural science & technology最新文献

{"title":"Eco-friendly TiO2–Halloysite Supported Fluopyram Nanopesticide Formulation for Aquatic Safety without Compromising Efficacy","authors":"Li Man,&nbsp;Huayao Chen*,&nbsp;Xiang Liao,&nbsp;Jinhao Zhao,&nbsp;Hongjun Zhou,&nbsp;Li Hao and Xinhua Zhou*,&nbsp;","doi":"10.1021/acsagscitech.4c0057610.1021/acsagscitech.4c00576","DOIUrl":"https://doi.org/10.1021/acsagscitech.4c00576https://doi.org/10.1021/acsagscitech.4c00576","url":null,"abstract":"<p >The low utilization rate of pesticide leads to the pollution of soil and environment, which ultimately endangers human health. In this study, TiO₂ nanoparticles were synthesized and loaded with fluopyram (Flu) on halloysite (Ha) via sol–gel methods which was named Flu@THa. Thermogravimetric analysis (TGA), Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) were used to characterize the structure of all samples, and then the performances of zeta potential, fungistatic ability, antileaching behavior, and biosafety were tested. The results showed that anatase-phase TiO₂ was synthesized on halloysite with a particle size of ∼10 nm. Under neutral conditions (pH 7), the cumulative rate of pesticide release from Flu@THa was three times higher than that under acidic and alkaline conditions in 24 h. Flu@THa was evenly distributed in the soil and slowed the loss of pesticides. In addition, Flu@THa can promote germination and growth of peanut seeds and had good biocompatibility with low toxicity to zebrafish. This study is expected to be able to provide implications for environmentally friendly nanopesticides.</p>","PeriodicalId":93846,"journal":{"name":"ACS agricultural science & technology","volume":"5 1","pages":"84–93 84–93"},"PeriodicalIF":2.3,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143084750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of CuO Nanoparticle Size on Inhibition of Fusarium graminearum","authors":"Mengmeng Kong,&nbsp;Hairong Jing,&nbsp;Fuli Wang,&nbsp;Hui Huang,&nbsp;Hui Lian Xu*,&nbsp;Chuanxin Ma,&nbsp;Yu Shen*,&nbsp;Wade H. Elmer and Jason C. White,&nbsp;","doi":"10.1021/acsagscitech.4c0050110.1021/acsagscitech.4c00501","DOIUrl":"https://doi.org/10.1021/acsagscitech.4c00501https://doi.org/10.1021/acsagscitech.4c00501","url":null,"abstract":"<p >The application of nanoparticles (NPs) in agriculture has increased remarkably in recent years as a promising strategy for sustainable crop protection. Strategies involving the foliar use of NPs can significantly improve plant resistance to soilborne fungal diseases. NPs have been shown to be transported from leaves to roots, with potential release to the rhizosphere, although the precise mechanisms for reduced infection and damage from soilborne pathogens are complex, likely varying with disease system, nanoparticle type, and growth conditions. In this study, we investigated 100 ppm of CuO NPs of different sizes [sCuO NPs, 20–50 nm and lCuO NPs, 100 nm], along with 200 ppm of CuSO₄, for potential ability to inhibit <i>Fusarium graminearum</i> PH-1 in an <i>in vitro</i> leaf bioassay, as well as an <i>in vivo</i> assay on wheat leaves. Three days after treatment, the Cu salt and NPs (20–50 nm) both restricted fungal growth on wheat leaves <i>in vitro</i>. Laser scanning confocal microscopic observations revealed that the CuO NPs (20–50 nm) inhibited <i>F. graminearum</i> growth by direct effects on the hyphae, spores, and conidial spore germination. Reactive oxygen species (ROS) were significantly (<i>p</i> ≤ 0.05) increased by 214.84 and 191.55 J/cm² in the hyphae and conidia when treated with CuO NPs (20–50 nm), respectively; intracellular ROS content also increased with the treatment of the CuO NPs (100 nm), although inhibition on the conidial spore germination was limited. CuO NPs also compressed the membrane, which was different than the CuO ions-induced ROS caused cell membrane damage and apoptosis. We observed the smaller NP size (20–50 nm) had greater toxicity than the larger size (100 nm). The study demonstrates that size-dependent CuO NPs offer a promising approach for sustainable crop protection, with multiple mechanisms of pathogen control that may provide greater versatility than conventional CuO products. These findings have important implications for developing more effective and environmentally sustainable strategies to combat fungal diseases in agricultural systems, particularly for managing <i>Fusarium</i> head blight in wheat production.</p>","PeriodicalId":93846,"journal":{"name":"ACS agricultural science & technology","volume":"4 12","pages":"1301–1312 1301–1312"},"PeriodicalIF":2.3,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142850916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Discovery and Mechanism of 1,4-Dichloropyrido[3,4-d]pyridazine as a Potential Nematicidal Candidate","authors":"Qingfeng Cai,&nbsp;Siyu Lu,&nbsp;Sheng Wang,&nbsp;Hongyi Song and Jixiang Chen*,&nbsp;","doi":"10.1021/acsagscitech.4c0053610.1021/acsagscitech.4c00536","DOIUrl":"https://doi.org/10.1021/acsagscitech.4c00536https://doi.org/10.1021/acsagscitech.4c00536","url":null,"abstract":"<p >Plant nematode disease management is still a difficult problem in agricultural production. To develop novel green nematicides, pyridazine compounds with nematicidal activities against <i>Ditylenchus destructor</i> (<i>D. destructor</i>), <i>Bursaphelenchus xylophilus</i> (<i>B. xylophilus</i>), <i>Aphelenchoides besseyi</i> (<i>A. besseyi</i>), and <i>Meloidogyne incognita</i> (<i>M. incognita</i>) were discovered. The LC₅₀ values of compound <b>C2</b> were 7.1 and 3.4 mg/L against <i>D. destructor</i> and <i>A. besseyi</i>, respectively. Compound <b>C2</b> not only caused an adverse oxidative stress response of nematodes, resulting in intestinal damage, but also significantly inhibited egg hatching of <i>D. destructor</i>. Compound <b>C2</b> may lead to decreased cellular tolerance and antioxidant function of <i>D. destructor</i> by significantly downregulating the differential gene of the heat shock 70 kDa protein, thereby accelerating the cell litter process and ultimately leading to the death of the nematode. Compound <b>C2</b> can serve as a potential novel nematicide worthy of further study in the future.</p>","PeriodicalId":93846,"journal":{"name":"ACS agricultural science & technology","volume":"4 12","pages":"1313–1320 1313–1320"},"PeriodicalIF":2.3,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142843400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Residue Dissipation Dynamics and Dietary Risk Assessment of Kasugamycin, Oxine-Copper, Dimethomorph, and Pyraclostrobin in Cucumber","authors":"Yujuan Liu,&nbsp;Xinyue Jiang,&nbsp;Fanxin Bu,&nbsp;Haixiu Bai,&nbsp;Yingying Qin,&nbsp;Lingtao Meng,&nbsp;Kai Wang,&nbsp;Wen-xing Han,&nbsp;Nan Zou,&nbsp;Wei Mu and Beixing Li*,&nbsp;","doi":"10.1021/acsagscitech.4c0043510.1021/acsagscitech.4c00435","DOIUrl":"https://doi.org/10.1021/acsagscitech.4c00435https://doi.org/10.1021/acsagscitech.4c00435","url":null,"abstract":"<p >In recent years, pesticides have been overapplied to prevent and control cucumber diseases, and high pesticide residues on cucumbers have become a growing concern. Therefore, the establishment of a rapid and reliable method for the detection of pesticide residues is particularly required to ensure the health of humans and livestock. This study optimized the determination method of pesticide residues in cucumber using a QuEchERS pretreatment combined with an ultrahigh performance liquid chromatography-tandem mass spectrometry. The optimized method achieved a spike recovery rate of 79.1–103.3% for the kasugamycin, oxine-copper, dimethomorph, and pyraclostrobin in cucumber, and the limit of quantification was 0.01 mg/kg. The optimized method was used to detect there residues in 12 regions. The dissipation half-lives of oxine-copper, dimethomorph, and pyraclostrobin were 1.64–2.19, 1.15, and 1.20–1.27 days, respectively. The final residue levels of these pesticides were all below the maximum residue limit. The dietary risk assessment showed that the daily intake of kasugamycin, oxine-copper, dimethomorph, and pyraclostrobin accounted for 0.7, 35.7, 23.7, and 20.5% of the daily allowable intake, respectively, which were all within acceptable ranges. This indicates that under the ecological conditions in China, these pesticides are safe under good agricultural practices. This study provides guidance for the comprehensive evaluation and scientific use of fungicide residues in the cultivation of vegetables cash crops such as cucumber.</p>","PeriodicalId":93846,"journal":{"name":"ACS agricultural science & technology","volume":"4 12","pages":"1284–1291 1284–1291"},"PeriodicalIF":2.3,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142842749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dissipation Pattern, Terminal Residues, and Risk Assessment of Flutriafol and Cyflufenamid in Grapes under Egyptian Field Conditions","authors":"Farag Malhat,&nbsp;Ayman N. Saber*,&nbsp;Anwar Hegazy and Elsayed Saber,&nbsp;","doi":"10.1021/acsagscitech.4c0049310.1021/acsagscitech.4c00493","DOIUrl":"https://doi.org/10.1021/acsagscitech.4c00493https://doi.org/10.1021/acsagscitech.4c00493","url":null,"abstract":"<p >This study evaluated the dissipation and terminal residue levels of flutriafol and cyflufenamid in grape berries and leaves under Egyptian field conditions. Using an optimized LC-MS/MS method, both fungicides were quantified with high recovery rates (97.65–104.34%) and low detection limits (0.001 mg·kg^–1). The dissipation half-lives of flutriafol were 3.25 days in berries and 1.95 days in leaves, while cyflufenamid exhibited half-lives were 4.1 days in berries and 3.31 days in leaves. Terminal residues for flutriafol ranged from 0.087 to 0.785 mg·kg^–1, and for cyflufenamid, they ranged from 0.010 to 0.085 mg·kg^–1, both below Codex MRLs. Based on terminal residues, the dietary risk assessment revealed risk quotients (RQs) below 1, indicating minimal consumer risk. A preharvest interval (PHI) of 3–10 days for flutriafol and 1–3 days for cyflufenamid is recommended. This study provides crucial data to ensure the safe use of these fungicides in grape production.</p>","PeriodicalId":93846,"journal":{"name":"ACS agricultural science & technology","volume":"4 12","pages":"1292–1300 1292–1300"},"PeriodicalIF":2.3,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsagscitech.4c00493","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142843085","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Spray-Drying Microencapsulation of Bacillus megaterium in PVA/Cationic Starch/Zinc Oxide for Promoting Growth and Zinc Availability in Soybean Plants","authors":"Ludimila Araújo Lodi,&nbsp;Roger Borges,&nbsp;Marina Momesso Lopes,&nbsp;Vanessa Araújo Graciano,&nbsp;Ricardo Bortoletto-Santos,&nbsp;Hernane S. Barud,&nbsp;Christiane Abreu de Oliveira-Paiva,&nbsp;Caue Ribeiro and Cristiane Sanchez Farinas*,&nbsp;","doi":"10.1021/acsagscitech.4c0047610.1021/acsagscitech.4c00476","DOIUrl":"https://doi.org/10.1021/acsagscitech.4c00476https://doi.org/10.1021/acsagscitech.4c00476","url":null,"abstract":"<p >Zinc (Zn) is essential for plant development and its deficiency can reduce agricultural productivity. Nutrient-solubilizing microorganisms offer a promising solution to enhance the zinc availability for plants. However, directly applying these microorganisms in the field presents challenges such as cell viability loss. Here, we developed a formulation using poly(vinyl alcohol) (PVA), cationic starch (CS), and zinc oxide (ZnO) for microencapsulating <i>Bacillus megaterium</i> via spray drying. Our results showed that <i>B. megaterium</i> effectively solubilizes zinc oxide. The PVACS-ZnO matrix provided a favorable environment for the growth and development of <i>B. megaterium</i>, releasing cells in quantities exceeding initial inoculation (10 log₁₀ CFU/g). Additionally, it protected the cells against adverse field conditions, maintaining bacterial viability after heat (50 °C/48 h), UV light (95% after 180 min), and fungicide/insecticide exposure (99% after 2 h), unlike free bacteria. Accelerated shelf life tests indicated prolonged stability of PVACS-ZnO microspheres, with double the estimated shelf life (14 months) compared to free bacteria (6 months). In greenhouse experiments, the formulation increased aerial and root biomass of soybean plants, and enhanced phosphorus and zinc absorption. These findings indicate that PVASC-ZnO formulations offer a promising strategy for encapsulating microorganisms and enhancing zinc availability, resulting in an effective and environmentally friendly biofertilizer product.</p>","PeriodicalId":93846,"journal":{"name":"ACS agricultural science & technology","volume":"4 12","pages":"1271–1283 1271–1283"},"PeriodicalIF":2.3,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsagscitech.4c00476","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142850284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Encapsulation in Silica Nanoparticles Increases the Phytotoxicity of Essential Oil from Thymus vulgaris in a Weed Species","authors":"Rym Boukhalfa*,&nbsp;Christian O. Dimkpa*,&nbsp;Chaoyi Deng,&nbsp;Yi Wang,&nbsp;Claudia Ruta,&nbsp;Generosa J. Calabrese,&nbsp;Saida Messgo-Moumene,&nbsp;Anuja Bharadwaj,&nbsp;Raja Muthuramalingam,&nbsp;Jason C. White and Giuseppe De Mastro,&nbsp;","doi":"10.1021/acsagscitech.4c0058010.1021/acsagscitech.4c00580","DOIUrl":"https://doi.org/10.1021/acsagscitech.4c00580https://doi.org/10.1021/acsagscitech.4c00580","url":null,"abstract":"<p >Weed control poses a significant challenge to agriculture, warranting the development of effective but environmentally safe herbicides. Encapsulation of plant essential oils (EOs) with herbicidal properties in nanoscale polymers can offer high loading capacity as well as controlled and tunable agrochemical delivery. This study investigated the use of encapsulated thyme EO against redroot pigweed (<i>Amaranthus retroflexus</i> L.), a difficult-to-control weed resistant to multiple herbicides. Three volumes of thyme EO (500, 750, and 1000 μL) were encapsulated in a silica nanoparticle (SiNP) suspension to achieve 250 μL/mL (hereinafter “500”), 375 μL/mL (hereinafter “750”), and 500 μL/mL (hereinafter “1000”) EO concentrations. The efficacies of these preparations were compared to that of pristine EO. The loading efficiencies were 26, 42, and 64% for the “500”, “750”, and “1000” EO preparations, respectively. Transmission electron microscopy (TEM) revealed spherical and regular SiNPs with a size range of 220–300 nm. Fourier transform infrared (FT-IR) spectroscopy confirmed EO loading by the presence of characteristic peaks of isoprenoids and isomeric compounds. Herbicidal bioassays with pristine thyme EO in postemergence treatments on <i>A. retroflexus</i> seedlings exhibited a significant (<i>p</i> ≤ 0.05) concentration-dependent herbicidal activity, reducing shoot biomass by 85% at the highest tested concentration (“1000”), compared to the control (Tween 20). Encapsulation with SiNPs further enhanced the herbicidal efficacy compared to the control, reaching 96% at the highest concentration. Compared to the pristine EO, EO-SiNPs induced significant ROS production at the highest concentration, leading to cell membrane damage and an imbalanced antioxidant system, as demonstrated by the increased shoot malondialdehyde content (40%) and activities of the antioxidant enzymes ascorbate peroxidase (APX) (65%), catalase (CAT) (52%), and superoxide dismutase (SOD) (36%). These results suggest significant potential for developing an effective nanobioherbicide using thyme EO encapsulated in SiNPs.</p>","PeriodicalId":93846,"journal":{"name":"ACS agricultural science & technology","volume":"4 12","pages":"1321–1331 1321–1331"},"PeriodicalIF":2.3,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142850285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Time-to-Failure Approach for Estimating the Shelf Life of Freeze-Dried Carotenoid-Enriched Apples: Forecasting the Deterioration of Quality Properties for Different Packaging Types and Storage Conditions","authors":"Julio E. González-Pérez,&nbsp;Oscar Jiménez-González,&nbsp;Aarón Romo-Hernández,&nbsp;Aurelio López-Malo and Nelly Ramírez-Corona*,&nbsp;","doi":"10.1021/acsagscitech.4c0046510.1021/acsagscitech.4c00465","DOIUrl":"https://doi.org/10.1021/acsagscitech.4c00465https://doi.org/10.1021/acsagscitech.4c00465","url":null,"abstract":"<p >This study focused on incorporating total carotenoids (TC) into Pink Lady apples using vacuum-impregnation with carrot juice at 20, 30, 40, and 50°Brix and then assessing the shelf life of the impregnated apples after freeze-drying. The highest TC (12.30 ± 0.48 mg β-carotene/100 g) and minimal shrinkage were achieved using 20°Brix juice (20CJ). The freeze-drying of vacuum-impregnated apples with 20CJ reduced the time to reach equilibrium conditions compared with fresh apples. The shelf life of the freeze-dried impregnated samples was determined using time-to-fail models (TTF) at different conditions of package permeability (<i>P</i> = 2.17 × 10^–15 and 1.04 × 10^–6 g/s × Pa × m), temperature (<i>T</i> = 15, 25, and 35 °C), and relative humidity (RH = 0, 35, and 75%). TTF predictions indicate a T-independent shelf life, exceeding 105 days for P evaluated at RH &lt; 35%. Sensory evaluation indicates that consumers preferred impregnated freeze-dried apples with intermediate hardness textures (above 18.14 N) and TC &gt; 0.81 mg β-carotene/100 g in dried apples stored at RH = 35% and <i>T</i> = 15 °C.</p>","PeriodicalId":93846,"journal":{"name":"ACS agricultural science & technology","volume":"4 11","pages":"1241–1249 1241–1249"},"PeriodicalIF":2.3,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsagscitech.4c00465","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142665689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Photo- and Thermo-Chemical Properties and Biological Activities of Saclipins, UV-Absorbing Compounds Derived from the Cyanobacterium Aphanothece sacrum","authors":"Yoshie Uchida,&nbsp;Masaki Honda,&nbsp;Rungaroon Waditee-Sirisattha and Hakuto Kageyama*,&nbsp;","doi":"10.1021/acsagscitech.4c0057110.1021/acsagscitech.4c00571","DOIUrl":"https://doi.org/10.1021/acsagscitech.4c00571https://doi.org/10.1021/acsagscitech.4c00571","url":null,"abstract":"<p >Saclipins A and B, which accumulate in the edible cyanobacterial strain <i>Aphanothece sacrum</i> in response to desiccation stress, are natural compounds with absorption maxima in the ultraviolet (UV)-A and UV-B regions. Saclipins are promising natural products for use in skincare cosmetics and oral supplements, but their chemical properties and biological activities remain largely unknown. In this study, we found that saclipins were highly stable compounds when treated with light and heat and that they have important biological activities in terms of skin antiaging and whitening. Furthermore, we revealed that saclipin-containing extracts prepared from dried <i>A. sacrum</i> exhibited the same or enhanced activity compared with purified saclipins. Specifically, purified saclipins and saclipin-containing extracts showed remarkable activity in inhibiting elastase activity and promoting collagen and hyaluronic acid production in human fibroblasts. Our findings will be useful for the formulation of saclipins in skincare cosmetics and oral supplements.</p>","PeriodicalId":93846,"journal":{"name":"ACS agricultural science & technology","volume":"4 11","pages":"1260–1270 1260–1270"},"PeriodicalIF":2.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142671143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigating the Effect of Oxygen, Carbon Dioxide, and Ethylene Gases on Khasi Mandarin’ Orange Fruit during Storage","authors":"Raj Singh,&nbsp;C. Nickhil*,&nbsp;R. Nisha,&nbsp;Konga Upendar and Sankar Chandra Deka,&nbsp;","doi":"10.1021/acsagscitech.4c0037510.1021/acsagscitech.4c00375","DOIUrl":"https://doi.org/10.1021/acsagscitech.4c00375https://doi.org/10.1021/acsagscitech.4c00375","url":null,"abstract":"<p >This study presents on predicting the shelf life of’Khasi mandarin’ oranges stored under specific conditions through the analysis of their respiration rate and ripeness levels. By employing a finely tuned deep convolutional neural network (CNN) trained on 1284 images of’Khasi mandarin’ oranges, the research classifies the fruit into four ripeness categories: unripe, partially ripe, ripe, and over-ripe. Stored at temperature (26.39 ± 3.07 °C) and humidity level between 60 and 80%, the CO₂ respiration rate (<i>RR</i>_CO2) was calculated based on enzyme kinetics principles to correlate with these ripeness levels, indicating a shift toward anaerobic respiration as the fruit undergoes ripening and metabolic changes. Moreover, ethylene release, initially at 0.43 ± 0.017 mL/kg/h on day 0, precipitously increased to 6.943 ± 0.0296 mL/kg/h by day 17, reflecting the ripening process. A support vector regression model predicts shelf life and ripeness levels, creating an AI-based soft sensor applicable to various fruits. This approach enables dynamic decision-making in pricing, logistics, and storage conditions, reducing fruit waste and economic losses. Integrating AI-driven solutions into postharvest handling enhances efficiency and sustainability in fruit distribution and storage, benefiting agricultural and retail industries.</p>","PeriodicalId":93846,"journal":{"name":"ACS agricultural science & technology","volume":"4 11","pages":"1206–1215 1206–1215"},"PeriodicalIF":2.3,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142665673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}