Modelling heat-disinfestation of dried fruits on “biological model” larvae Ephestia kuehniella (Zeller)

Ben-lalli, Ameziane; Méot, Jean–Michel; Collignan, Antoine; Bohuon, Philippe

doi:10.1016/j.foodres.2010.10.047

Cited by 18 publications

(13 citation statements)

References 43 publications

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“…150 Studies on heat disinfestations of dried fruits such as date fruits showed that the microwave heating was better than intensive conventional heating, since it retained the quality of the food products. 151 Microwave-assisted Cooking of Foodstuffs. Microwave heating found successful applications in cooking purposes such as cooking of bacon, baking of foods, and heating of baked dough products.…”

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confidence: 99%

Microwave material processing—a review

2011

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Microwave heating is caused by the ability of the materials to absorb microwave energy and convert it to heat. This article represents a review on fundamentals of microwave heating and their interaction with materials for various applications in a comprehensive manner. Experimental studies of single, multimode, and variable frequency microwave processing were reviewed along with their applications. Modeling of microwave heating based on Lambert's law and Maxwell's electromagnetic field equations have also been reviewed along with their applications. Modeling approaches were used to predict the effect of resonances on microwave power absorption, the role of supports for microwave heating, and to determine the nonuniformity on heating rates. Various industrial applications on thermal processing have been reviewed. There is tremendous scope for theoretical and experimental studies on the athermal effects of microwaves. Some of the unresolved problems are identified and directions for further research are also suggested.

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confidence: 99%

Microwave material processing—a review

2011

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“…For the Deglet‐Nour date variety, the nonenzymatic browning caused by heat treatment is just located on the surface (Ben‐Lalli et al . ). In addition, the advantage of using visual color was that it might be measured as an online quality parameter (Kara and Erçelebi ).…”

Section: Discussionmentioning

confidence: 97%

“…The modifications of the physicochemical properties of date during heat treatment mainly result in a nonenzymatic browning (Belarbi 2001). For the Deglet-Nour date variety, the nonenzymatic browning caused by heat treatment is just located on the surface (Ben-Lalli et al 2011). In addition, the advantage of using visual color was that it might be measured as an online quality parameter (Kara and Erçelebi 2013).…”

Section: Discussionmentioning

confidence: 99%

“…Air heating alone provided a satisfactory level of disinfestation of Zeller larvae inside dates while limiting quality damage (Ben‐Lalli et al . ).…”

Section: Introductionmentioning

confidence: 97%

“…Currently, it is widely used commercially for the quality control of fresh fruits (Ferguson et al 2000). Air heating alone provided a satisfactory level of disinfestation of Zeller larvae inside dates while limiting quality damage (Ben-Lalli et al 2011).…”

Section: Introductionmentioning

confidence: 99%

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Heat Resistances of Candida Apicola and Aspergillus Niger Spores Isolated From Date Fruit Surface

Belbahi

Bohuon

Leguérinel

et al. 2015

J Food Process Engineering

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Candida apicola and Aspergillus niger strains were isolated and identified from Deglet-Nour dates, and their loads were determined on the fruit surface. The thermal inactivation of their spores was evaluated between 42 and 70C. The estimated D values for C. apicola and A. niger were D50 = 2.3 ± 0.4 min and D50 = 22.1 ± 2.1 min, respectively. The zT values obtained were 9.4 ± 2.6 and 9.6 ± 1.0C for C. apicola and A. niger, respectively. The experimental survival spores obtained on the date surface during non-isothermal treatment were compared with the simulated data based on the Bigelow method and on pasteurization value calculations. C. apicola and A. niger spores can be inactivated by relatively low temperatures. Validation shows that this model and its parameters can be used to optimize pasteurization of these fungal spores on the surface of fruits using the temperature-time profile data. These thermal treatments can pasteurized date surface while minimizing the color date degradation. PRACTICAL APPLICATIONSThis study contributes to the design and control of an effective heat treatment against the fungi that cause particular safety and spoilage problems during the preservation and packaging of fragile fresh fruits such as fresh dates.

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Individual and combined effects of contact insecticides and high temperatures on Mediterranean flour moth,Ephestia kuehniellaZeller (Lepidoptera: Pyralidae)

et al. 2021

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BACKGROUND Mediterranean flour moth or mill moth Ephestia kuehniella Zeller (Lepidoptera: Pyralidae) is a common pest of cereals and flour throughout the world. In this study, eggs, third instar larvae, pupae and adults of E. kuehniella were exposed to five elevated temperatures at a range of 45 to 65 °C for 5, 8, 10, 14, 18, 23 and 30 min. The effect of cypermethrin and dichlorvos was assessed on third instar larvae. The larvae were exposed to the insecticides on glass and concrete arenas and their mortality was recorded 24 h after treatment. To determine combination effects, the third instar larvae were transferred into the Petri dishes treated with LC25 (lethal concentration that kills 25%) of each insecticide and exposed to high temperatures for the period of time equal to LTi25 values (time needed for killing 25% of tested insects). RESULTS Exposing the eggs, third instar larvae and adults of E. kuehniella to 55 °C for 30, 18 and 30 min respectively, resulted in 100% mortality. In the pupa, exposure to 65 °C caused 100% mortality after 23 min. Based on the LTe50 values (temperature needed to cause 50% mortality in the tested population), pupa was the most tolerant life stage to the temperatures tested. The LC50 values of cypermethrin and dichlorvos were 423.1 and 2608.5 mg active ingredient (a.i.) L−l on glass, and 2525.0 and 13502.8 mg a.i. L−l on concrete, respectively. The effect of cypermethrin was synergized by high temperatures. CONCLUSION High temperatures, cypermethrin and dichlorvos were effective against E. kuehniella. Exposure to combination of lower doses of cypermethrin and high temperatures at short time intervals may have potential in managing this pest. © 2021 Society of Chemical Industry.

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Modelling heat-disinfestation of dried fruits on “biological model” larvae Ephestia kuehniella (Zeller)

Cited by 18 publications

References 43 publications

Microwave material processing—a review

Microwave material processing—a review

Heat Resistances of Candida Apicola and Aspergillus Niger Spores Isolated From Date Fruit Surface

Individual and combined effects of contact insecticides and high temperatures on Mediterranean flour moth,Ephestia kuehniellaZeller (Lepidoptera: Pyralidae)

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