Journal of Stored Products Research最新文献

{"title":"The insecticidal activity and mechanism of the Cinnamomi ramulus (Lauraceae) essential oil against Tribolium confusum Jaquelin Du Val, 1868 (Coleoptera: Tenebrionidae): insights from transcriptomic and metabolomic profiles","authors":"Qianqian Lian,&nbsp;Jianji Zhao,&nbsp;Yiqing Li,&nbsp;Hui Tang,&nbsp;Yanping He,&nbsp;Qiuling Tang,&nbsp;Wei Zhang,&nbsp;Jie Bi","doi":"10.1016/j.jspr.2025.102926","DOIUrl":"10.1016/j.jspr.2025.102926","url":null,"abstract":"<div><div><em>Tribolium confusum</em> Jaquelin Du Val, 1868 (Coleoptera: Tenebrionidae) is a global pest of grain storage, primarily managed through chemical control methods such as phosphine fumigation. This approach adversely affects human health, contributes to pesticide resistance in pests, and leads to environmental pollution. Recently, the prevalence of botanical pesticides has surged, with plant essential oils (EOs) considered effective options for insecticide formulation. In this work, we selected <em>Cinnamomi ramulus</em> (Lauraceae) EO to evaluate the insecticidal activities and chemical composition on <em>T. confusum</em>. Utilizing gas chromatography-ion mobility spectrometry (GC-IMS) technology, 49 distinct volatile compounds were found in the EO of <em>C</em>. <em>ramulus</em>. The bioassay results indicated that at three concentrations (0.08, 0.16, 0.32 μL/cm²), the repellent of <em>C. ramulus</em> EO against <em>T. confusum</em> exceeded 90 %.</div><div>Furthermore, the median lethal concentration (LC₅₀) of <em>C. ramulus</em> EO for the fumigation of <em>T. confusum</em> is 42.63 mg/L at 24 h post-exposure. Meanwhile, we employed transcriptomic and metabolomic approaches to further investigate the mechanism of action of <em>C. ramulus</em> EO on <em>T. confusum</em>. We found that a total of 95 genes were elevated, while 277 genes were reduced. EO-treated and control <em>T. confusum</em> showed altered expression of seven genes, according to RT-qPCR. These genes were associated with the cytochrome P450 system and insect cuticle protein. The metabolomics analysis identified 1084 differential metabolites, enriched in pathways including cytochrome P450 xenobiotic metabolism, tyrosine metabolism and tryptophan metabolism. Therefore, <em>Cinnamomi ramulus</em> EO may be a viable, environmentally friendly candidate to manage grain-related pests.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"116 ","pages":"Article 102926"},"PeriodicalIF":2.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145797560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mycotoxin contamination and its impact on the nutritional and germination quality of on-farm stored sorghum grain in Tigray, Ethiopia","authors":"Samuel Alemayehu ,&nbsp;Fetien Abay Abera ,&nbsp;Kiros Meles Ayimut ,&nbsp;Jagger Harvey","doi":"10.1016/j.jspr.2026.102980","DOIUrl":"10.1016/j.jspr.2026.102980","url":null,"abstract":"<div><div>Mycotoxin contamination of on-farm stored sorghum poses a critical yet often overlooked threat to food safety, nutrition, and seed security in Tigray, northern Ethiopia. This study assessed the occurrence of four major mycotoxins: total aflatoxins (AFT), fumonisins (FUM), deoxynivalenol (DON), and ochratoxin A (OTA), and their relationships with storage conditions, nutritional composition, and germination in 360 sorghum samples from six districts. Aflatoxins, fumonisins, deoxynivalenol, and ochratoxin A were detected in 80.3%, 82.2%, 63.3%, and 77.5% of samples, respectively, with 41.7–63.3% of positive samples exceeding Ethiopian or European regulatory limits. Contamination increased with storage duration, peaking in grain stored for 10–12 months in traditional structures (underground pits, Gombisa, Godo), which were warmer and more humid than polypropylene bags. Melkam, Kodem, Meko, and Dengele varieties accumulated more mycotoxins than Aba'are and Dekeba. Total aflatoxin concentrations varied by location, storage duration, and storage type (p &lt; 0.001), with the highest level recorded in Alamata (19.6 ± 1.3 μg/kg), and followed by Endamehoni and Hintalo Wajirat. The lowest concentrations were found in Ofla, Raya Azebo, and Wukro, with levels statistically similar among these three locations. Higher mycotoxin levels and kernel infection were associated with elevated temperature, relative humidity, and grain moisture, along with declines in protein, fat, and starch contents and significant reductions in germination. By 12 months of storage, sorghum showed marked deterioration in nutritional quality and seed viability, implying that grain retained for both food and planting becomes progressively compromised. These results indicate that multi-mycotoxin contamination in on-farm stored sorghum is widespread in Tigray and warrants integrated mitigation. Based on the findings, safer sorghum storage in Ethiopia should prioritize rapid drying to safe moisture before storage, avoiding high-humidity traditional structures where feasible, using improved storage options, and promoting lower-risk varieties as part of local seed and food safety strategies.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"116 ","pages":"Article 102980"},"PeriodicalIF":2.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146188057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing drying efficiency and quality retention of Pleurotus eryngii through microwave- hot air synergy: Insights into hydrothermal dynamics, moisture migration, and dielectric behavior","authors":"Yongzheng Li ,&nbsp;Kaili Liu ,&nbsp;Dianbin Su ,&nbsp;Weiqiao Lv ,&nbsp;Yemin Guo ,&nbsp;Xia Sun","doi":"10.1016/j.jspr.2026.102952","DOIUrl":"10.1016/j.jspr.2026.102952","url":null,"abstract":"<div><div>Improving drying efficiency while maintaining product quality is a key challenge in microwave-hot air (M-H) food processing. Despite its wide application, the hydrothermal mechanisms driving moisture migration and quality changes remain poorly understood. To clarify the hydrothermal mechanisms involved in microwave-hot air drying, this study employed a novel microwave-infrared hot air rolling bed dryer (MIHRBD) to systematically evaluate the effects of M-H on moisture migration, dielectric properties, microstructure, and quality characteristics of <em>Pleurotus eryngii</em>. An integrated approach combining drying kinetics, low-field nuclear magnetic resonance (LF-NMR), dielectric analysis, and comprehensive quality evaluations was used to obtain a multi-scale understanding of the drying process. The results showed that M-H significantly enhanced drying efficiency compared to single-mode drying, with improvements ranging from 20 % to 72.32 %, the maximum achieved under the M0.5-H60 condition. Meanwhile, the maximum effective moisture diffusivity increased by 237.33 % and 370.26 %, respectively. LF-NMR analysis revealed that M-H effectively promoted internal moisture redistribution. This was reflected in the dielectric constant and dielectric loss factor, both of which first increased and then decreased, jointly regulated by moisture content and temperature. Moreover, this intrinsic regulation was manifested in the improvement of <em>P. eryngii</em> quality attributes. Under the M0.3-H50 condition, the retention of phenolics, flavonoids, organic acids, and polysaccharides was optimal. SEM observations further confirmed a more intact microstructure with fewer loss channels. These findings provide new insights for the establishment and optimization of M-H food processing systems and offer a feasible technical approach for the efficient processing of <em>P. eryngii</em>.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"116 ","pages":"Article 102952"},"PeriodicalIF":2.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146034552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multi-gas monitoring system with enhanced chemical resilience for intelligent grain management","authors":"Xuemei Jiang ,&nbsp;Yiao Zou ,&nbsp;Haojie Li ,&nbsp;Ting Guan ,&nbsp;Mincheng Bai ,&nbsp;Yufeng chen ,&nbsp;Lanyue Huang ,&nbsp;Hao Feng ,&nbsp;Bingzhao Zheng ,&nbsp;Zhaolin Gu ,&nbsp;Zhongke Qu","doi":"10.1016/j.jspr.2026.102957","DOIUrl":"10.1016/j.jspr.2026.102957","url":null,"abstract":"<div><div>Real-time monitoring of key gases (O₂, CO₂, PH₃) is essential for ensuring food security and intelligent grain management. However, conventional offline methods are labor-intensive, lack the precision, and cannot provide timely data on deep grain conditions. Furthermore, the long-term stability of gas sensors is challenged by the highly corrosive conditions in grain silos, such as those during phosphine fumigation. This study develops and validates a multi-gas analyzer designed for automated, multi-point, and high-precision online monitoring under these adverse conditions. We develops a modular online gas analysis system featuring an 11-channel automatic sampler with solenoid valves, a precision pneumatic circuit, and a single-block computer numerical control machined flow manifold. Its core detection unit uses a hybrid sensing strategy, combining optimized techniques for each gas to achieve accuracies of ≤2 % Full Scale (F.S.) for O₂, ≤3 % F.S. for CO₂, and ≤3 % F.S. for PH₃. We calibrated the system and compared the chemical robustness of our deposition-based oxygen sensor against a traditional electrochemical sensor under harsh conditions, including 1017 ppm phosphine and a complex mixture of volatiles from construction materials. Calibration confirmed high analytical precision (R² = 0.99) for O₂, CO₂, and PH₃. In corrosion resistance testing, a conventional electrochemical oxygen sensor failed within 1 h under 1017 ppm PH₃. In contrast, our deposition-based sensor demonstrated exceptional resilience, maintaining 96.5 % of its initial sensitivity after 5 h of continuous exposure. Furthermore, the system's sensor also exhibited a significantly slower performance degradation rate than its electrochemical counterpart when exposed to complex volatiles from construction materials. Our study successfully demonstrates a multi-gas analyzer capable of providing long-term, stable, and automated monitoring in the harsh, corrosive environments typical of grain storage. The system represents a robust technological foundation for enabling truly intelligent grain management.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"116 ","pages":"Article 102957"},"PeriodicalIF":2.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146034555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Feeding preference of Sitophilus oryzae (L) (Coleoptera: Curculionidae) on dried noodles stored at varied temperature and humidity: The perspective of volatile components","authors":"Qianqian Zhang,&nbsp;Lei Shen,&nbsp;Shuyi Liu,&nbsp;Yajing Qi,&nbsp;Wenshen He,&nbsp;Liming Yue,&nbsp;Bin Xu","doi":"10.1016/j.jspr.2025.102899","DOIUrl":"10.1016/j.jspr.2025.102899","url":null,"abstract":"<div><div>Dried noodles, as typical cereal-based foods, are susceptible to insect infestation during storage, such as <em>Sitophilus oryzae</em> (L.) (Coleoptera: Curculionidae), which could cause deterioration of food quality and may endanger public health. This study investigated the relationship between the volatile components of dried noodles under different temperature and humidity conditions and the feeding preference of <em>S. oryzae</em>. <em>S. oryzae</em> showed a greater preference for dried noodles from low-refined white flour (N3). Changes in the volatile compounds of dried noodles, caused by temperature and humidity, affected the feeding preference of <em>S. oryzae</em>. The attraction of dried noodles to <em>S. oryzae</em> was mitigated under 20 °C storage conditions, and dried noodles stored at 32 °C, 55 % RH, and 65 % RH even exhibited repellent effects against the <em>S. oryzae</em> during the later stages of storage. The content of volatile components was the highest in dried noodles stored at 75 %RH. Humidity had a greater effect than temperature on the content of volatile components in dried noodles. 2,8,8-trimethyldecane and eicosane were the key components in the feeding preference of <em>S. oryzae</em>. <em>S. oryzae</em> showed negative behavioural responses to 2-methyloctan-1-ol, 2-ethylhexyl N-propyl carbamate, 9-octylheptadecane, and hexadecyl nonyl ether‌. The results showed that keeping the ambient temperature below 20 °C and 55 % RH can reduce the exogenous infestation of <em>S. oryzae</em> in dried noodles. These findings provide a new idea for the precise control of pests during the storage of dried noodles and other cereal products, as well as the application of food volatiles as potential attractants or repellents.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"116 ","pages":"Article 102899"},"PeriodicalIF":2.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145623245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chemical characterization of Cantharellus cibarius and Lactarius piperatus methanolic extracts – potential supplements in laboratory rearing of Plodia interpunctella (Lepidoptera: Pyralidae)","authors":"Dragana Z. Predojević ,&nbsp;Nevena N. Petrović ,&nbsp;Tomislav B. Tosti ,&nbsp;Filip N. Vukajlović ,&nbsp;Marijana M. Kosanić ,&nbsp;Snežana B. Pešić","doi":"10.1016/j.jspr.2025.102903","DOIUrl":"10.1016/j.jspr.2025.102903","url":null,"abstract":"<div><div>Dietary supplements are concentrated sources of vitamins, minerals, or other substances with nutritional or physiological effects intended to supplement the regular diet. The aim of this study was the chemical characterization of methanolic extracts from two edible mushrooms, <em>Cantharellus cibarius</em> Fr. (1821) (Cantharellaceae) and <em>Lactarius piperatus</em> (L.) Roussel (1806) (Russulaceae), and the investigation of their potential use as dietary supplements in the rearing of <em>Plodia interpunctella</em> (Hübner, 1813) (Lepidoptera: Pyralidae) laboratory populations. This was examined by assessing the effect of the extracts on survival rate and life history parameters of <em>P. interpunctella</em>: mean developmental duration (MDD), adult emergence dynamics, longevity and fecundity on maize kernels. The attractant potential of the mushroom extracts was also investigated, by examining their influence on the oviposition preference of mated females. The highest number of emerged adults was recorded with 1 % <em>L. piperatus</em> extract (46.5 ± 5.27). Significantly shorter MDD was observed with 5 % <em>C. cibarius</em> (32.48 ± 0.53) and 5 % <em>L. piperatus</em> (32.73 ± 0.41) extract treatments, compared to the control. Adult emergence lasted significantly longer in the treatments (15.75 ± 0.25), compared to the control. The highest fecundity was observed with 5 % <em>L. piperatus</em> extract treatment (163.38 ± 10.21). The oviposition preference test confirmed that treatments with 2 % <em>C. cibarius</em> extracts are attractant, while <em>L. piperatus</em> extracts have no attractant potential. Chemical analysis of both extracts was performed, including qualitative and quantitative analysis of polyphenols, analysis of mineral elements, and determination of anions of organic acids, sugars and sugar alcohols, confirming a high nutrient content.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"116 ","pages":"Article 102903"},"PeriodicalIF":2.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145623248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Lipidomic profile in cocoa (Theobroma cacao L.) beans with different clones and postharvest conditions","authors":"Simon Perrez Akoa ,&nbsp;Matilde Tura ,&nbsp;Pierre Effa Onomo ,&nbsp;Mara Mandrioli ,&nbsp;Jude Manga Ndjaga ,&nbsp;Marietta Solange Soupi Keutcha ,&nbsp;Keriane Carissa Makoukam Wochie ,&nbsp;Pierre Francois Djocgoue ,&nbsp;Tullia Gallina Toschi","doi":"10.1016/j.jspr.2025.102919","DOIUrl":"10.1016/j.jspr.2025.102919","url":null,"abstract":"<div><div>This study aimed to assess both fat content and fatty acid composition of the most common cocoa clones cultivated in Cameroon under the influence of different postharvest practices. The cocoa clones were selected from Mengang (3°53′ NL, 12°03′ EL), Center region of Cameroon and subjected to four postharvested conditions namely: fresh, fermented, unfermented dried and fermented dried cocoa beans. Physicochemical parameters (pH, cut-test, and fermentation index) of all samples were assessed. Total fat content was estimated by differentiating the nonfatty and fatty fractions. Gas chromatographic (GC-FID) analysis was applied to cocoa butter to determine lipid classes and fatty acids methyl esters (FAMEs). Stistical analysis (two-way ANOVA, HeatMap and ACP) were carried out. Total fat content was clone-dependent, ranging from 47 to 56 % of bean weight, and varied with postharvest practices. Lipidograms highlighted that cocoa butter accounts for over 97 % triacylglyrols. On the other hand, the descending order of fatty acids based on their fat content is stearic, oleic, palmitic and linoleic acids. This order is the same for all clones for fresh beans but changes depending on postharvest practice. The Lipid relative abundance and composition are correlated to each genotype. Statistical analysis shown that different cocoa in different postharvest practices can have the same fat content and a relatively similar composition. Therefore, the relative abundance of fats and their composition could be used to describe cocoa variety and posthavest stage.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"116 ","pages":"Article 102919"},"PeriodicalIF":2.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145748795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Leveraging green synthesis of ZnO-NPs for improved potato resistance against Phthorimaea operculella","authors":"Mozhgan Mardani-Talaee,&nbsp;Jabraeil Razmjou","doi":"10.1016/j.jspr.2025.102916","DOIUrl":"10.1016/j.jspr.2025.102916","url":null,"abstract":"<div><div>Nanotechnology offers innovative solutions for enhancing agricultural sustainability, with zinc oxide nanoparticles (ZnO-NPs) emerging as particularly promising agents for improving crop resilience and pest management. However, their potential specifically against <em>Phthorimaea operculella</em> a devastating pest causing significant pre- and post-harvest losses in potato cultivation remains underexplored. This study investigates the efficacy of <em>Sargassum ilicifolium</em>-synthesized ZnO-NPs as a dual-function agent to improve potato tuber quality and manage the destructive pest <em>P. operculella</em>. Tubers treated with 50 and 100 ppm exhibited significantly enhanced quality, with peak hardness (90.10 and 89.56 %) and elevated levels of total phenolics (282.6 and 271.5 mg GAE/g). The 50 ppm treatment yielded the highest flavonoid content and antioxidant activity (93.06 mg QE/g and 91.73 %), significantly exceeding control values (84.61 mg QE/g and 43.48 %, respectively). The most pronounced effects were observed at 100 ppm, which extended egg development duration to 7.55 days, reduced female fecundity to 34.18 eggs, and suppressed the intrinsic rate of increase (<em>r</em>) to 0.067 day⁻¹, compared to control values of 3.47 days, 146.7 eggs, and 0.128 day⁻¹, respectively. Furthermore, the 100 ppm induced severe morphological deformities in 51.4 % of emerging adults, predominantly manifesting as crumpled wings and eclosion failure. Our study confirms the dual efficacy of bio-synthesized ZnO-NPs (50–100 ppm) in potato cultivation, where they simultaneously function as a tuber quality enhancer and a potent bio-fertilizer against moth. This nanotechnology provides a sustainable IPM solution that enhances post-harvest quality and controls pests, effectively reducing economic losses while minimizing environmental impact through decreased pesticide reliance.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"116 ","pages":"Article 102916"},"PeriodicalIF":2.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145691727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Insecticidal effect of deltamethrin, pyrethrin, and spinosad on metal and concrete surfaces on six species of stored product insects","authors":"Deanna S. Scheff,&nbsp;Codi Mueller,&nbsp;Alexus Delaney,&nbsp;William R. Morrison III","doi":"10.1016/j.jspr.2025.102902","DOIUrl":"10.1016/j.jspr.2025.102902","url":null,"abstract":"<div><div>Contact insecticides are one of the most used control and prevention methods for managing stored product insects however, the efficacy of organic or natural insecticides across multiple surfaces is limited. The objective of this study was to evaluate a deltamethrin, pyrethrin, and spinosad insecticide formulations applied to metal and concrete surfaces to control adults of six species of stored product insects. Metal and concrete arenas were treated with an insecticide, and ten adults of each species, including <em>Tribolium castaneum</em> (Herbst), <em>Rhyzopertha dominica</em> (F.), <em>Cryptolestes ferrugineus</em> (Stephens), <em>Tribolium confusum</em> Jacquelin du Val, <em>Sitophilus zeamais</em> Motschulsky, or <em>Oryzaephilus surinamensis</em> (L.), were added to treated arenas and evaluated for survival at 1, 3, or 7 days after exposure. Insect survival was significantly lower on metal (nonabsorbent) compared to concrete surfaces (absorbent). Among all species, insect survival was &lt;5 % on metal surfaces treated at the high label rate of pyrethrin. <em>Tribolium castaneum</em> and <em>T. confusum</em> were the two most tolerant species. <em>Tribolium</em> spp. survival ranged from 40 to 100 % on metal and concrete arenas treated with deltamethrin and spinosad. Overall, all the insecticides were more effective on metal surfaces. Results of this study demonstrate the broad-spectrum efficacy of three different formulations of contact insecticides, however their efficacy depends on the surface substrate. Thus it is imperative that the species and surface properties be considered before application of a contact insecticide to provide a more targeted application treatment in processing facilities, storage areas, or as a pre-bin treatment.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"116 ","pages":"Article 102902"},"PeriodicalIF":2.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145691731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Postharvest quality losses in hazelnuts: Effects of the Indian meal moth Plodia interpunctella infestation on the chemical quality and nutritional profile","authors":"Yunus Emre Altunç ,&nbsp;Emre Turan ,&nbsp;Atilla Şimşek ,&nbsp;Ali Güncan","doi":"10.1016/j.jspr.2025.102896","DOIUrl":"10.1016/j.jspr.2025.102896","url":null,"abstract":"<div><div>Insect pests significantly degrade the physical and chemical quality of stored agricultural commodities, including nuts. This study investigated the impact of the Indian meal moth, <em>Plodia interpunctella</em> (Hübner) (Lepidoptera: Pyralidae), infestations on the quality of hazelnuts from four premium cultivars of Türkiye: ‘Çakıldak’, ‘Mincane’, ‘Palaz’, and ‘Tombul’. Raw hazelnuts were infested with <em>P. interpunctella</em> larvae under controlled laboratory conditions. Quality parameters, including proximate composition, fatty acid profile, amino acid composition, and oxidative stability, were analyzed. The results revealed significant reductions in antioxidant activity (DPPH-RSA, TPC) and increases in free fatty acid (FFA) levels and peroxide values (PV) across all hazelnut cultivars. Çakıldak cultivar exhibited the greatest lipid degradation among them. Protein content and tocopherol levels varied across cultivar, indicating a differential susceptibility to infestation. An increase in saturated fatty acids and a change in the ratio of PUFA/SFA were observed in the fatty acid profile. Additionally, feeding the moth with hazelnuts led to a rise in free fatty acids (FFAs) due to hydrolytic and enzymatic degradation, an increase in lipid oxidation and in free amino acid (FAA) levels resulting from protein degradation. These processes significantly altered the chemical composition and nutritional quality of the hazelnuts.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"116 ","pages":"Article 102896"},"PeriodicalIF":2.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145691729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}