Journal of Stored Products Research最新文献_第4页

Occurrence of aflatoxins and effect of preventive practices to inhibit fungal growth and aflatoxin production in leftover flat bread/chapati used as animal feed and stored in Pakistani dairy farms

IF 2.7 2区农林科学 Q1 ENTOMOLOGY

Journal of Stored Products Research

Pub Date : 2025-01-10 DOI: 10.1016/j.jspr.2025.102544

Mavra Amin , Amir Ismail , Iqra Naeem , Usama Nasir , Muhammad Riaz , Yun Yun Gong , Sher Ali , Michael N. Routledge , Amna Iqbal , Asifa Saif , Carlos Augusto Fernandes Oliveira

Mycotoxins, particularly aflatoxins (AFs), pose significant health risks to humans and animals. Leftover flat bread/chapati is a traditional staple food commonly consumed by the people of South Asian region. AFs-contaminated leftover flat bread/chapatis are usually turned into animal feed, which warrant concern about the secondary effects of AFs in humans. In this study, the prevalence of AFs in 21 samples of leftover flat bread/chapati samples from different dairy farms of South Punjab, Pakistan was evaluated. Furthermore, the impact of different preventive practices on fungal growth and aflatoxin levels in leftover flat bread/chapati during 21-day storage was investigated. Eighteen samples (86%) of leftover flat bread/chapati collected from the dairy farms were found to be contaminated with total AFs at mean levels ranging from 1.65 to 37.20 μg/kg, among which 29% were found to have total AFs higher than the maximum permitted levels adopted in the European Union and the United States (20 μg/kg). Traditional, open-air storage practice leftover flat bread/chapati led to the highest fungal growth, while hermetic sealing (HS) in low density polyethylene (LDPE) bags effectively minimized fungal growth. HS combined with the addition of neem leaves and silica beads inside LDPE bags at percentage inclusions of 5–10% showed the most significant protective practice against fungal proliferation and AFs production. These data highlight the need for proper storage practices to avoid fungal contamination and AF production in leftover flat bread/chapati in dairy farms. Further research should be conducted to optimize HS methods in combination with selected medicinal plants and chemical compounds to ensure the safety and regulatory compliance of leftover flat bread/chapati during storage.

{"title":"Occurrence of aflatoxins and effect of preventive practices to inhibit fungal growth and aflatoxin production in leftover flat bread/chapati used as animal feed and stored in Pakistani dairy farms","authors":"Mavra Amin , Amir Ismail , Iqra Naeem , Usama Nasir , Muhammad Riaz , Yun Yun Gong , Sher Ali , Michael N. Routledge , Amna Iqbal , Asifa Saif , Carlos Augusto Fernandes Oliveira","doi":"10.1016/j.jspr.2025.102544","DOIUrl":"10.1016/j.jspr.2025.102544","url":null,"abstract":"<div><div>Mycotoxins, particularly aflatoxins (AFs), pose significant health risks to humans and animals. Leftover flat bread/<em>chapati</em> is a traditional staple food commonly consumed by the people of South Asian region. AFs-contaminated leftover flat bread/<em>chapatis</em> are usually turned into animal feed, which warrant concern about the secondary effects of AFs in humans. In this study, the prevalence of AFs in 21 samples of leftover flat bread/<em>chapati</em> samples from different dairy farms of South Punjab, Pakistan was evaluated. Furthermore, the impact of different preventive practices on fungal growth and aflatoxin levels in leftover flat bread/<em>chapati</em> during 21-day storage was investigated. Eighteen samples (86%) of leftover flat bread/<em>chapati</em> collected from the dairy farms were found to be contaminated with total AFs at mean levels ranging from 1.65 to 37.20 μg/kg, among which 29% were found to have total AFs higher than the maximum permitted levels adopted in the European Union and the United States (20 μg/kg). Traditional, open-air storage practice leftover flat bread/<em>chapati</em> led to the highest fungal growth, while hermetic sealing (HS) in low density polyethylene (LDPE) bags effectively minimized fungal growth. HS combined with the addition of neem leaves and silica beads inside LDPE bags at percentage inclusions of 5–10% showed the most significant protective practice against fungal proliferation and AFs production. These data highlight the need for proper storage practices to avoid fungal contamination and AF production in leftover flat bread/<em>chapati</em> in dairy farms. Further research should be conducted to optimize HS methods in combination with selected medicinal plants and chemical compounds to ensure the safety and regulatory compliance of leftover flat bread/<em>chapati</em> during storage.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"111 ","pages":"Article 102544"},"PeriodicalIF":2.7,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143105048","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}

引用次数: 0

Prediction of damage characteristics of apple fruit based on test and finite element method

IF 2.7 2区农林科学 Q1 ENTOMOLOGY

Journal of Stored Products Research

Pub Date : 2025-01-10 DOI: 10.1016/j.jspr.2025.102543

Haobin Chen , Ting Guo , Linxuan Jin , Junbo Wang , Yi Zhu , Zhaojun Ban , Jing Di

Apples are highly nutritious, however, their thin peel and high crispness make them susceptible to various forms of damage during harvesting, transportation, storage, and grading. Mechanical damage significantly impacts both their edibility and commercial value. Therefore, it is crucial to predict and evaluate potential damage in fruit production and logistics. In this study, the effects of compressive damage on apple fruits were investigated. A multi-scale finite element analysis (FEA) model, incorporating both the peel and flesh, was developed to analyze the impact of compression distance and storage time (1, 3, 5 days) on internal stress variations within the fruit. The results indicate that, when compressed at displacements of 2 mm, 4 mm, and 6 mm, the maximum equivalent stress in the flesh and peel reached 0.31, 0.52, 0.68 MPa, and 0.19, 0.30, 0.49 MPa, respectively. The force-displacement curves from both experimental data and finite element method (FEM) simulations for apples stored over different durations showed high correlation coefficients of 0.9911, 0.9931, and 0.9955, respectively, confirming the model's ability to accurately simulate real compression scenarios. The integration of experimental results with finite element methods provides a more comprehensive understanding of the mechanical properties and damage relationships in apples, offering significant insights for predicting internal damage and developing new systems to prevent fruit damage.

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引用次数: 0

Resistance of some lentil cultivars against the cowpea beetle, Callosobruchus maculatus (F.) (Coleoptera: Chrysomelidae)

IF 2.7 2区农林科学 Q1 ENTOMOLOGY

Journal of Stored Products Research

Pub Date : 2025-01-09 DOI: 10.1016/j.jspr.2025.102546

Aryan Ebadi , Bahram Naseri , Behnam Amiri Besheli , Jabraeil Razmjou , Asgar Ebadollahi , Reza Farshbaf Pourabad , Maryam Elahi , Forough Afshari

The cowpea beetle, Callosobruchus maculatus (F.), is one of the detrimental insect pests of legume seeds in field and storage conditions. In the current study, the seeds of five lentil cultivars, Perkouz, Sana, Sepehr, Bileh-Savar, and Gachsaran, were evaluated for their resistance to C. maculatus based on life-table parameters, oviposition preference, and digestive function. The biochemical and physical features of studied cultivars were also evaluated to comprehend their potential correlations with examined pest parameters. In the free-choice experiment, the quantity of eggs deposited on Perkouz was highest, while it was lowest on Bileh-Savar. Developmental times on Bileh-Savar, Gachsaran, and Sepehr were longer than on Perkouz. The beetles fed with Bileh-Savar showed lowest net reproductive rate, intrinsic rate of population increase and finite rate of increase. Fourth-instar larvae exhibited lowest proteolytic and highest amylolytic activity on Bileh-Savar. Among the characteristics of lentil seeds, hardness index, moisture content, as well as starch and protein levels notably affect the population parameters of C. maculatus. Given the results of this investigation, Bileh-Savar is the most resistant cultivar for feeding and population increase of C. maculatus and can be considered in management strategies of this pest.

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引用次数: 0

Effect of hazelnut protein oxidation on O/W emulsion stability, interfacial properties and lipid oxidation based on hazelnut protein oxidation

IF 2.7 2区农林科学 Q1 ENTOMOLOGY

Journal of Stored Products Research

Pub Date : 2025-01-08 DOI: 10.1016/j.jspr.2024.102534

Ziyi Huang , Yanyan Wu , Le Chen , Hongyu Jiang , Chuan Tian , Miao Fu , Chunmao Lyu

The objective of this study was to examine the impact of hazelnut proteins with varying levels of oxidation (0, 45, 90, 135, 180, and 225 d of storage) on the stability of O/W emulsions. The results demonstrated that hazelnut proteins with varying degrees of oxidation exhibited distinct effects on the stability of O/W emulsions. Mild and moderate oxidation resulted in an increase in the absolute ζ-potential, surface hydrophobicity, endogenous fluorescence intensity, centrifugal stability, emulsification index, adsorbed protein content, and viscosity of the emulsions, it caused a decrease in particle size and turbidity, ultimately leading to an improvement in the physical stability of hazelnut protein emulsions. Electrophoresis results demonstrate that proteins with moderate oxidation exhibit increased flexibility, which contributes to the development of a more compact interfacial structure and improved stability of emulsions. The decrease in viscosity as the shear rate increases suggests that hazelnut protein emulsions are characteristic of shear-thinning systems. Additionally, frequency scans reveal that all emulsions display an improved elastic structure in both the mid-and high-frequency ranges. Oil oxidation is an unavoidable process that occurs over extended periods of storage. However, emulsions containing a moderate level of protein oxidation exhibit reduced levels of oil oxidation products in comparison to other emulsions. This characteristic contributes to the stabilization of oil-in-water (O/W) emulsions. In conclusion, hazelnut proteins that have undergone moderate oxidation exhibit beneficial effects on emulsion stability, interfacial properties, and lipid oxidation.

{"title":"Effect of hazelnut protein oxidation on O/W emulsion stability, interfacial properties and lipid oxidation based on hazelnut protein oxidation","authors":"Ziyi Huang , Yanyan Wu , Le Chen , Hongyu Jiang , Chuan Tian , Miao Fu , Chunmao Lyu","doi":"10.1016/j.jspr.2024.102534","DOIUrl":"10.1016/j.jspr.2024.102534","url":null,"abstract":"<div><div>The objective of this study was to examine the impact of hazelnut proteins with varying levels of oxidation (0, 45, 90, 135, 180, and 225 d of storage) on the stability of O/W emulsions. The results demonstrated that hazelnut proteins with varying degrees of oxidation exhibited distinct effects on the stability of O/W emulsions. Mild and moderate oxidation resulted in an increase in the absolute ζ-potential, surface hydrophobicity, endogenous fluorescence intensity, centrifugal stability, emulsification index, adsorbed protein content, and viscosity of the emulsions, it caused a decrease in particle size and turbidity, ultimately leading to an improvement in the physical stability of hazelnut protein emulsions. Electrophoresis results demonstrate that proteins with moderate oxidation exhibit increased flexibility, which contributes to the development of a more compact interfacial structure and improved stability of emulsions. The decrease in viscosity as the shear rate increases suggests that hazelnut protein emulsions are characteristic of shear-thinning systems. Additionally, frequency scans reveal that all emulsions display an improved elastic structure in both the mid-and high-frequency ranges. Oil oxidation is an unavoidable process that occurs over extended periods of storage. However, emulsions containing a moderate level of protein oxidation exhibit reduced levels of oil oxidation products in comparison to other emulsions. This characteristic contributes to the stabilization of oil-in-water (O/W) emulsions. In conclusion, hazelnut proteins that have undergone moderate oxidation exhibit beneficial effects on emulsion stability, interfacial properties, and lipid oxidation.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"111 ","pages":"Article 102534"},"PeriodicalIF":2.7,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143105372","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}

引用次数: 0

Investigating UV-C radiation as a non-chemical method to prevent quality loss in the pea seed during storage

IF 2.7 2区农林科学 Q1 ENTOMOLOGY

Journal of Stored Products Research

Pub Date : 2025-01-06 DOI: 10.1016/j.jspr.2024.102532

Yasemin Tekin Kumaş, Hakan Kibar, Hakkı Ekrem Soydemir

This research investigates the impact of ultraviolet-C (UV-C) radiation exposure (5, 10, and 20 min) on the quality and storability characteristics of pea (Pisum sativum L.) seeds, focusing on technological properties (moisture content, bulk density and thousand grains weight), color stability (L∗, a∗, b∗, chroma and hue angle), ash content, and mineral composition (calcium, potassium, magnesium, phosphorus, and zinc). Seeds were stored at three different temperatures (15 °C, 20 °C, and 25 °C) for periods ranging from 0 to 360 days, with assessments conducted at 90-day intervals. The results demonstrate that UV-C treatment plays a significant role in maintaining seed quality throughout storage. Seeds exposed to 20 min of UV-C radiation and stored at 15 °C retained the highest moisture content and showed the least color degradation, particularly in terms of lightness (L∗) and chroma values. In addition, UV-C exposure positively influenced the mineral composition, particularly calcium and potassium content, which showed increased levels under UV-C treatments. However, magnesium and zinc levels were more variable, with some reductions observed over extended storage durations. The optimal conditions for preserving seed quality were found to be 20 min of UV-C exposure combined with storage at 15 °C for up to 270 days. These findings suggest that UV-C radiation, combined with controlled storage conditions, can effectively enhance the long-term quality of pea seeds, offering a sustainable, non-chemical method for the agricultural industry.

{"title":"Investigating UV-C radiation as a non-chemical method to prevent quality loss in the pea seed during storage","authors":"Yasemin Tekin Kumaş, Hakan Kibar, Hakkı Ekrem Soydemir","doi":"10.1016/j.jspr.2024.102532","DOIUrl":"10.1016/j.jspr.2024.102532","url":null,"abstract":"<div><div>This research investigates the impact of ultraviolet-C (UV-C) radiation exposure (5, 10, and 20 min) on the quality and storability characteristics of pea (<em>Pisum sativum</em> L.) seeds, focusing on technological properties (moisture content, bulk density and thousand grains weight), color stability (<em>L∗, a∗, b∗</em>, chroma and hue angle), ash content, and mineral composition (calcium, potassium, magnesium, phosphorus, and zinc). Seeds were stored at three different temperatures (15 °C, 20 °C, and 25 °C) for periods ranging from 0 to 360 days, with assessments conducted at 90-day intervals. The results demonstrate that UV-C treatment plays a significant role in maintaining seed quality throughout storage. Seeds exposed to 20 min of UV-C radiation and stored at 15 °C retained the highest moisture content and showed the least color degradation, particularly in terms of lightness (<em>L∗</em>) and chroma values. In addition, UV-C exposure positively influenced the mineral composition, particularly calcium and potassium content, which showed increased levels under UV-C treatments. However, magnesium and zinc levels were more variable, with some reductions observed over extended storage durations. The optimal conditions for preserving seed quality were found to be 20 min of UV-C exposure combined with storage at 15 °C for up to 270 days. These findings suggest that UV-C radiation, combined with controlled storage conditions, can effectively enhance the long-term quality of pea seeds, offering a sustainable, non-chemical method for the agricultural industry.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"111 ","pages":"Article 102532"},"PeriodicalIF":2.7,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143105047","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}

引用次数: 0

Sorption, desorption, and residue analysis of the fumigant ethyl formate in date fruits using cooled methanol extraction and GC-MS

IF 2.7 2区农林科学 Q1 ENTOMOLOGY

Journal of Stored Products Research

Pub Date : 2025-01-06 DOI: 10.1016/j.jspr.2024.102540

Gomaa R.M. Ramadan , Yasser H. Hegazi , Mohamed S. Shawir , Mohamed E.I. Badawy , Thomas W. Phillips , Mahmoud M. Abo-El-Saad

Ethyl formate (EF) exhibited promising activity against pests of stored date fruits, showing its potential as an alternative fumigant to replace phosphine and methyl bromide (MB). However, the information related to sorption, desorption and residues in date fruits is lacking. Therefore, the present study explored the sorption and desorption of EF at application doses of 70 and 140 mg/L in dry dates (Ghazali) and semi-dry dates (Elwadi-I). Moreover, the study developed and validated a method to determine the actual residues of EF in both date varieties using cooled methanol for extraction and analyzed by gas chromatography-mass spectrometry in selected ion monitoring. The actual amounts of EF residues in both date varieties fumigated at 70 and 140 mg/L for 24 h were quantified. The initial doses applied decreased by 71.5 and 52.9% at 70 mg/L and by 72.5 and 48.0% at 140 mg/L for Ghazali and Elwadi-I, respectively, after 24 h of fumigation. There was a notable desorption of EF from both date varieties, with about 20.0% released from the initial doses applied after 24 h of resealing. Sorption rates of EF in Ghazali and Elwadi-I were 237.71 and 185.17 mg/kg at 70 mg/L and 482.6 and 336.75 mg/kg at 140 mg/L, respectively. The developed method achieved a high level of precision and selectivity, with an acceptable recovery between 80.22 and 92.35% and a relative standard deviation <20.0%. The limit of detection (LOD) and limit of quantitation (LOQ) were 0.01 and 0.1 mg/kg, respectively. The initial amounts of EF residues in Ghazali and Elwadi-I date fruits after 0 h (15 min) of aeration were 48.24 and 30.08 mg/kg following the fumigation at 70 mg/L and were 95.95 and 81.74 mg/kg when fumigated at 140 mg/L, respectively. However, EF residues were undetectable after 72 h of aeration. These findings are important for the implementation of EF as a stored date protectant agent.

{"title":"Sorption, desorption, and residue analysis of the fumigant ethyl formate in date fruits using cooled methanol extraction and GC-MS","authors":"Gomaa R.M. Ramadan , Yasser H. Hegazi , Mohamed S. Shawir , Mohamed E.I. Badawy , Thomas W. Phillips , Mahmoud M. Abo-El-Saad","doi":"10.1016/j.jspr.2024.102540","DOIUrl":"10.1016/j.jspr.2024.102540","url":null,"abstract":"<div><div>Ethyl formate (EF) exhibited promising activity against pests of stored date fruits, showing its potential as an alternative fumigant to replace phosphine and methyl bromide (MB). However, the information related to sorption, desorption and residues in date fruits is lacking. Therefore, the present study explored the sorption and desorption of EF at application doses of 70 and 140 mg/L in dry dates (Ghazali) and semi-dry dates (Elwadi-I). Moreover, the study developed and validated a method to determine the actual residues of EF in both date varieties using cooled methanol for extraction and analyzed by gas chromatography-mass spectrometry in selected ion monitoring. The actual amounts of EF residues in both date varieties fumigated at 70 and 140 mg/L for 24 h were quantified. The initial doses applied decreased by 71.5 and 52.9% at 70 mg/L and by 72.5 and 48.0% at 140 mg/L for Ghazali and Elwadi-I, respectively, after 24 h of fumigation. There was a notable desorption of EF from both date varieties, with about 20.0% released from the initial doses applied after 24 h of resealing. Sorption rates of EF in Ghazali and Elwadi-I were 237.71 and 185.17 mg/kg at 70 mg/L and 482.6 and 336.75 mg/kg at 140 mg/L, respectively. The developed method achieved a high level of precision and selectivity, with an acceptable recovery between 80.22 and 92.35% and a relative standard deviation <20.0%. The limit of detection (LOD) and limit of quantitation (LOQ) were 0.01 and 0.1 mg/kg, respectively. The initial amounts of EF residues in Ghazali and Elwadi-I date fruits after 0 h (15 min) of aeration were 48.24 and 30.08 mg/kg following the fumigation at 70 mg/L and were 95.95 and 81.74 mg/kg when fumigated at 140 mg/L, respectively. However, EF residues were undetectable after 72 h of aeration. These findings are important for the implementation of EF as a stored date protectant agent.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"111 ","pages":"Article 102540"},"PeriodicalIF":2.7,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143105371","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}

引用次数: 0

Essential oils in grain storage: A comprehensive review of insecticidal and antimicrobial constituents, mechanisms, and applications for grain security

IF 2.7 2区农林科学 Q1 ENTOMOLOGY

Journal of Stored Products Research

Pub Date : 2025-01-06 DOI: 10.1016/j.jspr.2024.102537

Hui Li , Sheng Qiao , Shuaibing Zhang

Traditional pesticides are facing increasing limitations due to concerns about global food security. Essential oils (EOs), as natural plant-derived alternatives, have gained attention for their insecticidal and antimicrobial properties. This review highlights the key constituents of EOs, including terpenes, aldehydes, alcohols, ketones, and alkaloids, and evaluates their effectiveness against grain storage pests and microorganisms. We discuss various extraction methods, highlighting their advantages and disadvantages. EOs are shown to act through fumigation, contact, and behavioral disruption, although their precise mechanisms of action require further study. Their applications extend to pest eradication, mold prevention, and weed control, enhancing the effectiveness of pesticides. The role of microencapsulation and nanotechnology in stabilizing EOs for broader use in grain preservation is also explored, emphasizing their potential to enhance stored grain safety. Balancing the discussion on essential oils' utility, this review emphasizes the necessity for continuous research and innovation in sustainable pest management strategies.

{"title":"Essential oils in grain storage: A comprehensive review of insecticidal and antimicrobial constituents, mechanisms, and applications for grain security","authors":"Hui Li , Sheng Qiao , Shuaibing Zhang","doi":"10.1016/j.jspr.2024.102537","DOIUrl":"10.1016/j.jspr.2024.102537","url":null,"abstract":"<div><div>Traditional pesticides are facing increasing limitations due to concerns about global food security. Essential oils (EOs), as natural plant-derived alternatives, have gained attention for their insecticidal and antimicrobial properties. This review highlights the key constituents of EOs, including terpenes, aldehydes, alcohols, ketones, and alkaloids, and evaluates their effectiveness against grain storage pests and microorganisms. We discuss various extraction methods, highlighting their advantages and disadvantages. EOs are shown to act through fumigation, contact, and behavioral disruption, although their precise mechanisms of action require further study. Their applications extend to pest eradication, mold prevention, and weed control, enhancing the effectiveness of pesticides. The role of microencapsulation and nanotechnology in stabilizing EOs for broader use in grain preservation is also explored, emphasizing their potential to enhance stored grain safety. Balancing the discussion on essential oils' utility, this review emphasizes the necessity for continuous research and innovation in sustainable pest management strategies.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"111 ","pages":"Article 102537"},"PeriodicalIF":2.7,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143180510","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}

引用次数: 0

Effect of temperature and relative humidity on the development of Oryzaephilus surinamensis L. (coleoptera: Silvanidae) reared on dried noodles

IF 2.7 2区农林科学 Q1 ENTOMOLOGY

Journal of Stored Products Research

Pub Date : 2025-01-04 DOI: 10.1016/j.jspr.2024.102541

Qianqian Zhang, Jingjing Lu, Zahoor Ahmed, Song Jiang, Bin Xu

The saw-toothed grain beetle, Oryzaephilus surinamensis (L.) (Coleoptera: Silvanidae), is a secondary pest of stored products, previous studies have focused on grains and ignored their growth characteristics in packaged commodities. This study aimed to investigate the developmental and reproductive biology of O.surinamensis at 20–36 °C and 65%–85% relative humidity (RH) reared on dried noodles. The optimum temperature and humidity of O. surinamensis reared on dried noodles were 28 °C/85% RH, the index of population control was 0.24, the generation period was 49.86d, and the generation survival rate was 40%, the highest fecundity was 7.83 eggs. The temperature was more affected than relative humidity on the generation period, fecundity, and survival rate of O. surinamensis. The development of O. surinamensis was all completed in the range of 28–36 °C except 20 °C; the larval and pupal stages were more affected than the egg stage at 65%∼85% RH. Under the experimental conditions of temperature and humidity, the intrinsic rate of increase, and doubling time of the population were negative, and the population trend index was less than 1; the reproductive parameters of O. surinamensis decreased slightly as temperature (28–36 °C) increased or humidity decreased. Simulating different temperature and humidity conditions in dried noodles packaging, the O. surinamensis did not complete the generation development. The survival rate of O. surinamensis of each developmental stage and fecundity was highest at 28 °C/60% RH, followed by 36 °C/60% RH. The results showed that the ambient temperature below 20 °C and RH below 65% were beneficial to the prevention of O. surinamensis and its prevention in dried noodles is focused on the invasion of adults and eggs.

{"title":"Effect of temperature and relative humidity on the development of Oryzaephilus surinamensis L. (coleoptera: Silvanidae) reared on dried noodles","authors":"Qianqian Zhang, Jingjing Lu, Zahoor Ahmed, Song Jiang, Bin Xu","doi":"10.1016/j.jspr.2024.102541","DOIUrl":"10.1016/j.jspr.2024.102541","url":null,"abstract":"<div><div>The saw-toothed grain beetle, <em>Oryzaephilus surinamensis</em> (L.) (Coleoptera: Silvanidae), is a secondary pest of stored products, previous studies have focused on grains and ignored their growth characteristics in packaged commodities. This study aimed to investigate the developmental and reproductive biology of <em>O</em>.<em>surinamensis</em> at 20–36 °C and 65%–85% relative humidity (RH) reared on dried noodles. The optimum temperature and humidity of <em>O. surinamensis</em> reared on dried noodles were 28 °C/85% RH, the index of population control was 0.24, the generation period was 49.86d, and the generation survival rate was 40%, the highest fecundity was 7.83 eggs. The temperature was more affected than relative humidity on the generation period, fecundity, and survival rate of <em>O. surinamensis.</em> The development of <em>O. surinamensis</em> was all completed in the range of 28–36 °C except 20 °C; the larval and pupal stages were more affected than the egg stage at 65%∼85% RH. Under the experimental conditions of temperature and humidity, the intrinsic rate of increase, and doubling time of the population were negative, and the population trend index was less than 1; the reproductive parameters of <em>O. surinamensis</em> decreased slightly as temperature (28–36 °C) increased or humidity decreased. Simulating different temperature and humidity conditions in dried noodles packaging, the <em>O. surinamensis</em> did not complete the generation development. The survival rate of <em>O. surinamensis</em> of each developmental stage and fecundity was highest at 28 °C/60% RH, followed by 36 °C/60% RH. The results showed that the ambient temperature below 20 °C and RH below 65% were beneficial to the prevention of <em>O. surinamensis</em> and its prevention in dried noodles is focused on the invasion of adults and eggs.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"111 ","pages":"Article 102541"},"PeriodicalIF":2.7,"publicationDate":"2025-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143105370","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}

引用次数: 0

Life history parameters of the parasitoid wasp, Anisopteromalus calandrae (Hymenoptera: Pteromalidae) parasitizing cowpea beetle, Callosobruchus maculatus on six legumes species

IF 2.7 2区农林科学 Q1 ENTOMOLOGY

Journal of Stored Products Research

Pub Date : 2025-01-04 DOI: 10.1016/j.jspr.2024.102539

Ali Golizadeh, Mostafa Hamzei, Mahdi Hassanpour, Seyed Ali Asghar Fathi

Anisopteromalus calandrae (Howard) (Hymenoptera: Pteromalidae) is recognized as a highly efficient biological control agent for several stored-product pests, targeting the late-instar larvae or pupae of various beetle species. Host plant metabolites may significantly affect species at the third trophic level. The life history traits of A. calandrae parasitizing Callosobruchus maculatus, which were reared on seeds from six legume species (broad bean, cowpea, lentil, green gram, chickpea, and soybean), were evaluated under controlled conditions of 27 ± 2 °C, 60 ± 5 % relative humidity, and a photoperiod of 10:14 (L:D) h. The longest development duration was recorded for soybean (28.56 days), while the shortest was noted for cowpea (12.41 days) and green gram (13.24 days). The parasitoid had the maximum female adult longevity (19.80 days) and fecundity (86.78 eggs) when reared on cowpea, whereas it demonstrated the lowest longevity (5.08 days) and fecundity (13.51 eggs) on soybean. The elevated values of net reproductive rate (R₀), intrinsic rate (r), and finite rate (λ) of A. calandrae were documented for the cohort raised on cowpea, while diminished values were seen on soybean. The life cycle parameters of A. calandrae were associated with the biochemical properties of the examined legume species. The energy stores of fourth instar C. maculatus larvae reared on various legume grains influenced the parasitoid's life history features. The potential correlation between the host plant metabolites and fourth instar larvae's energy reserves of C. maculatus with the life history traits of A. calandrae is explored. The findings could have implications for C. maculatus biological control.

{"title":"Life history parameters of the parasitoid wasp, Anisopteromalus calandrae (Hymenoptera: Pteromalidae) parasitizing cowpea beetle, Callosobruchus maculatus on six legumes species","authors":"Ali Golizadeh, Mostafa Hamzei, Mahdi Hassanpour, Seyed Ali Asghar Fathi","doi":"10.1016/j.jspr.2024.102539","DOIUrl":"10.1016/j.jspr.2024.102539","url":null,"abstract":"<div><div><em>Anisopteromalus calandrae</em> (Howard) (Hymenoptera: Pteromalidae) is recognized as a highly efficient biological control agent for several stored-product pests, targeting the late-instar larvae or pupae of various beetle species. Host plant metabolites may significantly affect species at the third trophic level. The life history traits of <em>A. calandrae</em> parasitizing <em>Callosobruchus maculatus</em>, which were reared on seeds from six legume species (broad bean, cowpea, lentil, green gram, chickpea, and soybean), were evaluated under controlled conditions of 27 ± 2 °C, 60 ± 5 % relative humidity, and a photoperiod of 10:14 (L:D) h. The longest development duration was recorded for soybean (28.56 days), while the shortest was noted for cowpea (12.41 days) and green gram (13.24 days). The parasitoid had the maximum female adult longevity (19.80 days) and fecundity (86.78 eggs) when reared on cowpea, whereas it demonstrated the lowest longevity (5.08 days) and fecundity (13.51 eggs) on soybean. The elevated values of net reproductive rate (<em>R</em><sub><em>0</em></sub>), intrinsic rate (<em>r</em>), and finite rate (<em>λ</em>) of <em>A. calandrae</em> were documented for the cohort raised on cowpea, while diminished values were seen on soybean. The life cycle parameters of <em>A. calandrae</em> were associated with the biochemical properties of the examined legume species. The energy stores of fourth instar <em>C. maculatus</em> larvae reared on various legume grains influenced the parasitoid's life history features. The potential correlation between the host plant metabolites and fourth instar larvae's energy reserves of <em>C. maculatus</em> with the life history traits of <em>A. calandrae</em> is explored. The findings could have implications for <em>C. maculatus</em> biological control.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"111 ","pages":"Article 102539"},"PeriodicalIF":2.7,"publicationDate":"2025-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143105055","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}

引用次数: 0

“Effect of various storage techniques on the physical, nutritional, and sensory properties of sorghum in Tigray, Ethiopia”

IF 2.7 2区农林科学 Q1 ENTOMOLOGY

Journal of Stored Products Research

Pub Date : 2025-01-04 DOI: 10.1016/j.jspr.2024.102530

Gebremedhin Teklay Abay , Sarah Tewoldeberhan , Teklebrhan Welday Atsbha , Fetien Abay Abera , Rizana Mahroof , Samuel Alemayehu

Sorghum, a crucial cereal crop for smallholder farmers in Ethiopia, serves as an essential source of food, income, and nutrition. The aim of this study was to evaluate the effects of five grain storage technologies: Purdue Improved Crop Storage (PICS) bags, ZeroFly bags, polypropylene bags, filter-cake-treated polypropylene bags, and underground pits on the physicochemical properties of sorghum grains and the sensory quality of injera prepared from stored grain. Using proximate composition analysis as per the Association of Official Analytical Chemists (AACC) standards, the results showed that after six months of storage, PICS bags preserved the highest germination energy (87.83%), whereas underground pits had the lowest (39.79%). PICS bags were the only technology maintaining germination viability above 85%. Moisture content increased across all storage technologies, with the most significant rise observed in underground pits (11.42%–17.48%). Nutrient losses, including reductions in protein, fiber, ash, and fat, were more pronounced in grains stored in filter-cake-treated bags, ZeroFly bags, polypropylene bags, and underground pits. However, minimum loss was recorded in the PICS bag. Sensory analysis demonstrated that injera made from sorghum stored in PICS bags received the highest preference scores. The findings highlight that PICS bags effectively preserve the physical, nutritional, and sensory quality of sorghum grains while mitigating storage losses. Consequently, PICS bags are recommended as a sustainable and eco-friendly solution for improving postharvest grain management in diverse agro-ecological settings in Tigray, Ethiopia.

{"title":"“Effect of various storage techniques on the physical, nutritional, and sensory properties of sorghum in Tigray, Ethiopia”","authors":"Gebremedhin Teklay Abay , Sarah Tewoldeberhan , Teklebrhan Welday Atsbha , Fetien Abay Abera , Rizana Mahroof , Samuel Alemayehu","doi":"10.1016/j.jspr.2024.102530","DOIUrl":"10.1016/j.jspr.2024.102530","url":null,"abstract":"<div><div>Sorghum, a crucial cereal crop for smallholder farmers in Ethiopia, serves as an essential source of food, income, and nutrition. The aim of this study was to evaluate the effects of five grain storage technologies: Purdue Improved Crop Storage (PICS) bags, ZeroFly bags, polypropylene bags, filter-cake-treated polypropylene bags, and underground pits on the physicochemical properties of sorghum grains and the sensory quality of injera prepared from stored grain. Using proximate composition analysis as per the Association of Official Analytical Chemists (AACC) standards, the results showed that after six months of storage, PICS bags preserved the highest germination energy (87.83%), whereas underground pits had the lowest (39.79%). PICS bags were the only technology maintaining germination viability above 85%. Moisture content increased across all storage technologies, with the most significant rise observed in underground pits (11.42%–17.48%). Nutrient losses, including reductions in protein, fiber, ash, and fat, were more pronounced in grains stored in filter-cake-treated bags, ZeroFly bags, polypropylene bags, and underground pits. However, minimum loss was recorded in the PICS bag. Sensory analysis demonstrated that injera made from sorghum stored in PICS bags received the highest preference scores. The findings highlight that PICS bags effectively preserve the physical, nutritional, and sensory quality of sorghum grains while mitigating storage losses. Consequently, PICS bags are recommended as a sustainable and eco-friendly solution for improving postharvest grain management in diverse agro-ecological settings in Tigray, Ethiopia.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"111 ","pages":"Article 102530"},"PeriodicalIF":2.7,"publicationDate":"2025-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143105054","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}

引用次数: 0