Journal of Stored Products Research最新文献

{"title":"Influence of trona (sodium sesquicarbonate) concentrations and storage period on the physicochemical properties, antinutrients, micronutrients and sensory qualities of dried okra (Abelmoschus esculentus L.) powder","authors":"Fausat L. Kolawole ,&nbsp;Toluwanimi A. Alonge ,&nbsp;Sarafa A. Akeem ,&nbsp;Halimat O. Sanni-Olayiwola","doi":"10.1016/j.jspr.2024.102311","DOIUrl":"https://doi.org/10.1016/j.jspr.2024.102311","url":null,"abstract":"<div><p>The potential of trona (sodium sesquicarbonate) as a natural preservative in dried-okra powder was examined in this study. Fresh okra was dried at 55 °C and then ground to powder. It was mixed with ground trona at 2%, 4%, 6% and 10% concentrations and then stored at ambient temperature for six weeks. The functional, nutritional, antinutritional, physicochemical and sensory properties of the okra powder samples were examined every two weeks. Drying resulted in significant (p &lt; 0.05) loss of moisture (94%), pH, flavonoids (34%), tannin (4.63%), phytate (32.70%), oxalate (24.49%), β-carotene (43%) and ascorbic acid (53%) content of the okra. Color loss occurred in trona-treated samples and during storage but it was better retained at low trona concentration. Moisture (5.28–6.03%), viscosity (96.30–124.55 mpa.s) and pH (5.64–8.30) of the okra powder increased with increasing trona concentration and then decreased during storage. Trona mostly decreased the packed bulk density (0.84–0.72 g/mL), water absorption (686.28–423.22%), oil absorption capacity (188.07–124.54%) and water solubility index (12.12–10.27%) of the okra but they were mostly stable during storage. Trona decreased the flavonoids, tannin, calcium, potassium and phosphorus of the okra powder while the phytate, oxalate and sodium mostly increased. Antinutrients and minerals showed slight reduction during the storage period. Most of the trona-treated okra samples showed lower β-carotene and ascorbic acid content which were better retained during storage than in the control. All the soups prepared from fresh and stored okra powders were acceptable to the panelists. However, freshly-dried okra with 2–4% trona and okra stored with 4–6% trona for six weeks are recommended for preparing nutritious soups with high acceptability.</p></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140540674","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":"Hot air and infrared heating methods as alternative control methods against Tribolium castaneum (Herbst.) and their effect on the physiochemical properties of finger millet (Eleusine corocana) flour","authors":"Subhashini Manickam ,&nbsp;Loganathan Manickam ,&nbsp;Venkatachalapathy Natarajan ,&nbsp;Meenatchi Rajamani","doi":"10.1016/j.jspr.2024.102307","DOIUrl":"https://doi.org/10.1016/j.jspr.2024.102307","url":null,"abstract":"<div><p>Excessive use of synthetic insecticides has raised widespread environmental concerns. Synthetic fumigants such as methyl bromide and phosphine pose significant hazards causing severe environmental issues like ozone depletion, pollution toxicity to non-target organisms, pesticide residues and non-biodegradable properties. The study aims to employ alternate methods for chemical fumigants to disinfest stored pest, <em>T</em>. <em>castaneum</em> in finger millet flour using Hot air (HA) and Infrared (IR) heating methods. HA treatment at 65 <span><math><mrow><mo>°C</mo></mrow></math></span> for 10 min and IR heating at 1760 W for 9 min resulted in 100% mortality of all the life stages of the pest. The mortality (LT₅₀ and LT₉₉) was determined using probit analysis and the mortality data was subjected to generate a regression equation. Considering the properties of the treated flour, HA showed slight increase in bulk density as the temperature and time increased and IR exhibited significant effect on bulk density, influencing the flowability and compressibility of the flour. SEM images on the surface of HA treated flour was smooth, and IR treated flour with surface irregularities were noticed and the surface of untreated flour was coarse. HA and IR can be used for the disinfestation of millet flour thus maintaining the product quality. This research provides valuable insights for sustainable pest management and environment sustainability.</p></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140540673","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":"Analysis of the diversity and differences among bacterial communities in Dermatophagoides farinae from two different habitats","authors":"Xiaoqian Zhou ,&nbsp;Shuya Zhou ,&nbsp;Zhewei Fan ,&nbsp;Ruohang Wang ,&nbsp;Xinyan Yang ,&nbsp;Yuzhe Yang ,&nbsp;Xianglin Tao ,&nbsp;Xiaoniu Tang ,&nbsp;Entao Sun","doi":"10.1016/j.jspr.2024.102300","DOIUrl":"https://doi.org/10.1016/j.jspr.2024.102300","url":null,"abstract":"<div><p>Endosymbiotic bacteria play a crucial role in the host processes of growth and development, material metabolism, and reproduction. <em>Dermatophagoides farinae</em>, as a common allergen, exists in a wide range of environments, including storage facilities and human living habitats. Since the bacterial communities of <em>D. farinae</em> in these two habitats are poorly characterized, this study investigated six <em>D. farinae</em> populations from two habitats using 16s rRNA gene amplicon sequencing technology. The results showed that the bacterial community composition was similar among <em>D. farinae</em> populations from the same habitat and was significantly different among <em>D. farinae</em> populations from different habitats, indicating that the bacterial community structure of <em>D. farinae</em> is related to the local environment. The bacterial communities of <em>D. farinae</em> from the two habitats may play important roles in the adaptation of <em>D. farinae</em>, and this study provides new ideas for integrated pest control.</p></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140350847","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":"Influence of single-species and species-species competitive interactions, in a food limited environment, among certain stored-grain beetles on population size and grain weight losses","authors":"Mohamed H. Bayoumy ,&nbsp;Marwa M. Ramadan ,&nbsp;Amira A.A. Abdel-Hady ,&nbsp;Mona M. Shalaby ,&nbsp;Hager S. Awadalla","doi":"10.1016/j.jspr.2024.102298","DOIUrl":"https://doi.org/10.1016/j.jspr.2024.102298","url":null,"abstract":"<div><p>Resource competition is a common biotic factor that affects progeny production and population size of stored-grain beetles. Larvae of the external feeding competitors, <em>Tribolium</em>, <em>Oryzaephilus</em>, and <em>Trogoderma</em> have almost identical habits, all developing and feeding <em>outside</em> grains <em>Trogoderma</em> larvae therefore are likely to face the competition of both competitors that share the same habitat, with the possibility of displacement of one or both of these species from the habitat. A series of trials of the single-, two-, and three-species competitive interactions among <em>Trogoderma granarium</em>, <em>Tribolium castaneum,</em> and <em>Oryzaephilus surinamensis</em> beetles were performed in 20g cracked-wheat grains at 30 ± 1 <span><math><mrow><mo>°C</mo></mrow></math></span> and 65 ± 5% r.h. Population sizes of living individuals, total populations (living + dead), and grain losses in all combinations were estimated after 30 and 60 days. This was to understand the role of external competitors in <em>T. granarium</em> establishment and vice versa. The population size of <em>Trogoderma</em> benefited more from coexisting with <em>Oryzaephilus</em> than with <em>Tribolium</em>, whereas that of <em>Oryzaephilus</em> did not benefit from coexisting with either species. Each of <em>Trogoderma</em> and <em>Tribolium</em> inhibited development of <em>Oryzaephilus</em> with more suffering in the treatment containing the two, which eventually led to greater collapse in <em>Oryzaephilus</em> populations. However, path analysis of the population growth rates of each species in pure and mixed infestations indicates coexistence is possible between all species and mixed infestations are more harmful to the grains than pure ones, since there are positive associations among them.</p></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140347943","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":"Synergistic impact of rotary vacuum evaporator-based conventional and microwave heating treatments on the quality characteristics of Cucumis melo juice","authors":"Shivansh Bhatt ,&nbsp;Paras Joshi ,&nbsp;Shubhangi Arora ,&nbsp;Vinod Kumar ,&nbsp;Waseem Ahmad ,&nbsp;Afzal Hussain ,&nbsp;Ankita Dobhal ,&nbsp;Nardev Singh ,&nbsp;Sanjay Kumar","doi":"10.1016/j.jspr.2024.102305","DOIUrl":"https://doi.org/10.1016/j.jspr.2024.102305","url":null,"abstract":"<div><p>Muskmelon or cantaloupe (<em>Cucumis melo</em> L.) juice receives consumer preference throughout the world due to its sweet taste and flavour. The present research was aimed at investigating the impact of rotary vacuum evaporator-based conventional heating (CH) and microwave heating (MH) on the quality characteristics, i.e., pH, TSS (°Brix), TA (%), conductivity (ms), water evaporation rate (g/min), colour index, and total phenolic content (TPC mg GAE/mL) of <em>Cucumis melo</em> juice. The processing conditions for CH were temperature (50 °C, 70 °C, and 90 °C) and time (1 min, 1.5 min, and 2 min), whereas for MH, the processing conditions were microwave power (450 W, 600 W, and 900 W) and time (1 min, 1.5 min, and 2 min). The results illustrated that CH and MH affected the quality characteristics of <em>Cucumis melo</em> juice significantly. Among all the treatments, the water evaporation rate and TPC were the highest at 900 W for 2 min. Additionally, TCD among all the treatments was found to be minimum (0.56) when <em>Cucumis melo</em> juice was treated at 450 W for 1.5 min. Thus, MH treatment can be considered as an alternative to CH treatment. Overall, the present research provides insight into the treatment process of <em>Cucumis melo</em> juice, which can further enhance its quality characteristics and impact the global market.</p></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140343814","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":"Optimization of fermentation parameters and their impact on the final properties of the cereal-legume-based fermented product","authors":"Deepti Singh ,&nbsp;Khan Chand ,&nbsp;Anjali Sahal ,&nbsp;Sanjay Kumar ,&nbsp;Afzal Hussain","doi":"10.1016/j.jspr.2024.102302","DOIUrl":"https://doi.org/10.1016/j.jspr.2024.102302","url":null,"abstract":"<div><p>The enhancement of food diversification through the utilization of underutilized crops is imperative at both national and household levels due to their inherent high nutritional value. Employing fermentation technology stands out as a promising approach for processing these crops at the household scale. Fermented foods exhibit attributes conducive to maintaining a healthy dietary regimen, as they are abundant in nutrients, cost-effective, easy to produce, and serve as potent sources of proteins and other essential dietary components for alleviating protein malnutrition, particularly in children. In the current study, experiments were conducted to standardise the process for formulating idli batter using blends of barnyard millet, black gram, and black soybean, employing fermentation technology. The experimental design followed the Box-Behnken approach, encompassing three levels of predicted variables: particle size (400, 500, and 600 μ), temperature (28, 32, and 36 °C), and fermentation time (8, 10, and 12 h). Various properties of the resultant idli batter influenced by fermentation parameters, including batter volume, pH, titratable acidity, and density, were meticulously examined. The observed batter volume ranged from 1 to 67 mL, pH from 5.7 to 4.58, titratable acidity from 0.36 to 0.67%, and density from 1.09 to 0.63 g/cm³. The optimal particle size of 400 μ, coupled with a fermentation temperature of 34.5 °C and a fermentation time of 12 h, yielded maximal expansion in batter volume, thereby contributing to the preparation of idli of superior quality. Additionally, the fermentation kinetics of the optimized batter were investigated to elucidate the growth patterns of microorganisms involved in the fermentation process.</p></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140338924","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":"Transcriptomic analysis of cold stress-response in Anisopteromalus calandrae (Howard) (Hymenoptera: Pteromalidae)","authors":"Yafei Guo ,&nbsp;Jianhua Lü ,&nbsp;Chunqi Bai ,&nbsp;Chao Guo ,&nbsp;Jizhen Song ,&nbsp;Jiaqin Xi","doi":"10.1016/j.jspr.2024.102303","DOIUrl":"https://doi.org/10.1016/j.jspr.2024.102303","url":null,"abstract":"<div><p><em>Anisopteromalus calandrae</em> (Howard) (Hymenoptera: Pteromalidae) is a solitary ectoparasitoid that parasitizes several stored product beetles. Implementing an effective cold storage program can extend the shelf life of parasitoids for large scale applications in biological control. To explore the low temperature adaptation mechanisms of <em>A. calandrae</em>, the survival, longevity, parasitism rate, fecundity, and transcriptome of cold-treated <em>A. calandrae</em> adults were investigated. Storing <em>A. calandrae</em> adult wasps at 15 °C and 10 °C for 1 week had no significant difference in terms of adult longevity, parasitism rate, and progeny compared with the control. By analysing the gene expression patterns and comparing the whole transcriptome of cold-treated <em>A. calandrae</em> adults (adults after cold storage at 15, 10, or 5 °C for 1 week, referred to as T2, T3, and T4, respectively, and adults without experiencing cold storage referred to as T1), a total of 1376, 9799, and 7745 differentially expressed genes (DEGs) were respectively identified (T1 vs T2, T1 vs T3, T1 vs T4). A total of 196 commonly up-regulated genes and 100 commonly down-regulated genes in T1 vs T2, T1 vs T3, and T1 vs T4 treatments were identified. A total of 6 modules composed of differentially co-expressed genes were identified by weighted gene co-expression network analysis (WGCNA). The Mebrown module was extremely associated with the T4 sample. Mebrown module of genes was found to be highly correlated with the metabolic process (217 genes), cell part (148 genes), and catalytic activity (225 genes). Four transcription factor genes, <em>LOC111691805</em>, <em>LOC126386779</em>, <em>LOC108733382</em>, and <em>LOC108906572</em> were presented in Mebrown module as hub genes. The changes in gene expression indicated that <em>A. calandrae</em> can significantly upregulate the expression levels of abiotic related genes, such as the heat shock protein (Hsp 90) gene, cytochrome P450, and calnexin gene, etc., to cope with cold stress. The current results provide the molecular mechanisms and identify the key genes that may explain the adaptation of <em>A. calandrae</em> to cold stress.</p></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140339512","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":"Cowpea storage: Can small farmers use polyethylene terephthalate bottles and wood ash as an alternative to avoid damage caused by Callosobruchus maculatus?","authors":"Stênio Pereira Martins ,&nbsp;Gutierres Nelson Silva ,&nbsp;Adalberto Hipólito de Sousa ,&nbsp;Douglas Rafael e Silva Barbosa ,&nbsp;Rafael Azevedo da Silva ,&nbsp;Karina Renostro Ducatti ,&nbsp;Mateus Augusto Donegá ,&nbsp;Elcio Ferreira dos Santos ,&nbsp;Marcela Silva Carvalho ,&nbsp;Marcos Vinnicius Braga Machado de Queiroz","doi":"10.1016/j.jspr.2024.102301","DOIUrl":"https://doi.org/10.1016/j.jspr.2024.102301","url":null,"abstract":"<div><p>The aim of this study was to investigate the effectiveness of the combination of Polyethylene terephthalate (PET) bottles and ash in controlling <em>Csllosobruchus maculatus</em> and maintaining the quality of grains of cowpea cultivars. The following storage structures were used: PET bottle in airtight conditions and glass jars in non-airtight condition (control). The wood ash used in this research came from the burning process of eucalyptus (<em>Eucalyptus grandis</em>) wood. The experiment was carried out in a 2 × 2 × 4 factorial scheme, with two cowpea cultivars (BRS Tumucumaque and BRS Guariba), two forms of storage (PET bottle – airtight and glass jars – non-airtight) and four doses of eucalyptus wood ash (0.0; 1.0; 2.0 and 4.0 kg t⁻¹), in a completely randomized design with three replications. Each plot contained 500 g of cowpea. The effectiveness of treatments was measured by the instantaneous population growth rate (r_i) of C. maculatus. In r_i, 35 adult, non-sexed insects were used. Adult progenies were counted after 60 days of storage. For qualitative grain evaluation the following characteristics were analyzed: water content, germination, apparent specific mass and electrical conductivity. The results obtained in this study confirm for the first time that the combined use of PET and ash do not affect grain quality and it is efficient in the management of <em>C. maculatus</em> in cowpea cultivars. In the present study, a significant reduction in the emergence of <em>C. maculatus</em> was observed in the BRS Tumucumaque, making it possible that this cultivar has some potential for resistance to bruchid.</p></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140339513","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":"Mathematical modeling for management of stored-grain ecosystems: Approaches, opportunities, and research needs","authors":"T. Anukiruthika ,&nbsp;D.S. Jayas","doi":"10.1016/j.jspr.2024.102304","DOIUrl":"https://doi.org/10.1016/j.jspr.2024.102304","url":null,"abstract":"<div><p>Cereal grains, oilseeds, and pulses (collectively referred to as grains) form a major portion of daily intake for humans and domesticated animals and hold greater economic value for producers and grain industry. Often grain losses (qualitative and quantitative) occur due to improper management of grains during storage. Grain storage comprises of several interactions among biotic and abiotic factors that makes understanding of ecosystem quite complex. Over the years, mathematical modeling has emerged as a powerful tool for assessment, prediction, and simulation of real-time storage conditions. This manuscript presents a comprehensive review on various modeling approaches that are used for solving grain storage problems. Different solution techniques of mathematical formulations using analytical and numerical approaches (finite element, finite difference, finite volume, and discrete element modeling) are explained. The testing and validation are critical steps and must be considered during model development process. Reports are available for the prediction of temperature, moisture, and gas diffusion profiles in grain bins for different storage conditions. Similarly, works have been attempted for determination of spatial temporal distribution of stored products insect in grain bulks as well as models to predict development of fungi in grains have been reported. However, a comprehensive grain storage model through coupling of physical models (thermal, moisture, and gas diffusion) with biological models (population dynamics and dispersal) as well as economic models is needed. The advancements in information technology would aid in analyzing the available data from laboratory and field studies for forming an online database. Appropriate global cooperation and coordination of available data could help in accessing information about stored grains and level of infestation or infection at any given time. Early prediction of storage conditions in grain bins are possible through mathematical modeling approach that should help in establishing better grain management protocols.</p></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0022474X24000614/pdfft?md5=da74abd6da13f5e92967025561edf9f0&pid=1-s2.0-S0022474X24000614-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140339484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Physicochemical and repellent properties of chitosan films loaded with essential oils for producing an active packaging effective against the food pest Sitophilus oryzae","authors":"Tasnim Djebbi ,&nbsp;Roberta Ascrizzi ,&nbsp;Stefano Bedini ,&nbsp;Priscilla Farina ,&nbsp;Chiara Sanmartin ,&nbsp;Jouda Mediouni Ben Jemâa ,&nbsp;Maria Francesca Bozzini ,&nbsp;Guido Flamini ,&nbsp;Barbara Conti","doi":"10.1016/j.jspr.2024.102297","DOIUrl":"https://doi.org/10.1016/j.jspr.2024.102297","url":null,"abstract":"<div><p><em>Sitophilus oryzae</em> (L.) (Coleoptera: Dryophtoridae) represents one of the most important pests of stored products. The adults are considered very effective packaging penetrators, causing serious economic losses. Hence, the development of new food packaging technologies is crucial to prevent its infestations. In this study, <em>Citrus × aurantium</em> L., <em>Elettaria cardamomum</em> (L.) Maton, <em>Ocimum basilicum</em> L., and <em>Piper nigrum</em> L. essential oils (EOs) were analyzed by GC-EIMS and then used to produce aromatized chitosan (CHT)-based films. The spontaneous volatile emissions of these films were evaluated by headspace solid phase micro-extraction (HS-SPME) to assess the chemical composition of the vapors released from the CHT matrix after 2, 5, 7, 9, 12, and 14 days. The thickness, moisture content, swelling properties, total soluble matter, water vapor transmission rate, color, and transmission and transparency of light of all the CHT films after 1, 7, 14, 21, 28, and 35 days were also assessed. Furthermore, the repellency of the EO-loaded CHT films was tested daily against <em>S. oryzae</em> adults for 28 days.</p><p>Overall, adding the different EOs to the CHT films had a good impact on their physical and chemical properties. In particular, the <em>C. × aurantium</em> EO-loaded CHT film was characterized by the lowest swelling ratio, solubility, and water vapor transmission rate, besides having the lowest impact on the film transparency and opacity among the four EOs involved and a pleasant, lemon-like odor. The same <em>C. × aurantium</em> EO-loaded film was also the most effective as a repellent against <em>S. oryzae</em>, with a long-lasting effect for up to 28 days on the pest and a median repellency time (RT₅₀) of 7.184 days.</p></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0022474X24000547/pdfft?md5=78d8651050187d09cddbb6731cdcbf5d&pid=1-s2.0-S0022474X24000547-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140328262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}