Respiration of Rhyzopertha dominica (F.) at reduced oxygen concentrations

Emekçi, Mevlüt; Navarro, S.; Donahaye, E.; Rindner, Miriam; Azrieli, A.

doi:10.1016/s0022-474x(02)00076-0

Cited by 63 publications

(32 citation statements)

References 15 publications

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“…Detection of pest infestation in food commodities and in their storage premises is essential to ensure wholesome and acceptable produce for human consumption, for regulatory compliance, for diagnosis of incipient infestation and to ascertain the success of the control measures such as fumigants (Rajendran 1999). Application of thermal imaging for the detection of all insect post-embryonic stages is based on the temperature difference due to heat production by respiration compared to grain temperature (Emekci et al 2002(Emekci et al , 2004. This temperature difference due to infestation inside a kernel can be detected by thermal imaging.…”

Section: Grain Qualitymentioning

confidence: 99%

Measurement techniques and application of electrical properties for nondestructive quality evaluation of foods—a review

et al. 2011

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Non-destructive systems are recent trends for quality evaluation of fruits and vegetables. Information on post-harvest variations in electrical properties is needed to develop new instruments for this purpose. Electrical properties are finding increasing application in agriculture and food processing industries. Knowledge of dielectric properties of foods as a function of moisture content and temperature is essential in the design and control of drying systems. As simple, rapid and non-destructive measuring techniques, dielectric spectroscopy provides information about the dielectric response of materials to electromagnetic field. Electrical properties of agricultural materials have been of interest for many years. The interest in dielectric properties of materials has historically been associated with the design of electrical equipment. This review paper covers theoretical aspects of different electrical properties, their measurement techniques, applications of dielectric properties in agriculture/food processing sector and potential applications of thermal imaging (TI) for quality and safety assessment in food processing. The values of dielectric properties of a number of products including food grains, fruits and vegetables, and meat and meat products are presented in table form. This comprehensive coverage will be useful for academic, scientific and industrial community in treating and applying the facts in developing/testing new processes and products based on electromagnetic energy application.Keywords Electrical properties . Non-destructive . Measuring techniques . Dielectric constant . Loss factor . Thermal imaging technique . Food quality evaluationThe material investigation and moisture measurement using electromagnetic waves in wide spectrum serve for quality control and improvement in many branches like industry, forest and wood-working industry, civil engineering, agriculture, commerce and also foods e.g. for quality evaluation of meat, fruits, coffee etc (Hlavacova 2003; Venkatesh and Raghavan 2004). Non-destructive evaluation of quality based on constituents of fruits and vegetables has been successfully used (Chen et al. 1999;Jha et al. 2001;Kawano 1998). Electrical characteristics of agricultural materials have been of interest for many years (Nelson 2006) and are utilized in many areas of human activities. Techniques for non-destructive determination of quality and related characteristics of agricultural products are helpful to producers, handlers and processors . Permittivity and moisture can be closely correlated when water content is high. Knowledge of dielectric properties in partially frozen material is critical in determining the rates and uniformity of heating in microwave thawing. Electrical properties are important in processing foods with pulsed electric fields, ohmic heating, induction heating, radio frequency, and microwave heating. These properties are also useful in the detection of processing conditions or the quality of foods (Barbosa-Canovas et al. 2006). Considering ...

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Section: Grain Qualitymentioning

confidence: 99%

Measurement techniques and application of electrical properties for nondestructive quality evaluation of foods—a review

et al. 2011

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“…Emekci et al (2002) observaram que a taxa respiratória de ovos, larvas jovens e velhas, pupas e adultos de T. castaneum a 30°C, e sob condições normais de ar atmosférico, foi de 0,32; 29,08; 3,33; 0,59 e 2,37 µl CO 2 mg inseto h -1 , respectivamente. Diferentes padrões respiratórios também foram observados entre os estágios de desenvolvimento de Rhyzopertha dominica (F.) (Coleoptera: Bostrichidae) (Emekci et al, 2004) que, por sua vez, teve a taxa respiratória para os estágios de ovo, larva jovem e velha, pupa e adulto a 30°C, sob condições normais de ar atmosférico, de 0,14; 4,83; 1,98; 0,64 e 2,58 µl CO 2 mg -1 inseto h -1 , respectivamente.…”

Section: Resultsunclassified

Toxicidade da combinação de dióxido de carbono e fosfina sob diferentes temperaturas para Tribolium castaneum

Aguiar¹,

Faroni²,

Guedes³

et al. 2010

Rev. bras. eng. agríc. ambient.

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RESUMOO objetivo deste trabalho foi avaliar o efeito da temperatura sobre a toxicidade da combinação de dióxido de carbono e fosfina, para os estágios de desenvolvimento de Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae). A toxicidade da combinação de 5% de dióxido de carbono e 1 g m -3 de fosfina para os estágios de ovo, larvas de 5, 10 e 15 dias, pupa e adulto de T. castaneum, foi estudada nas temperaturas de 25, 30, 35, 40 e 45°C, por meio de estimativas dos tempos de exposição letais para 50 e 95% dos insetos (TL 50 e TL 95 ). Curvas tempo-resposta foram estabelecidas mediante bioensaios com períodos crescentes de exposição à combinação do dióxido de carbono com a fosfina. Observou-se que os TL 50 e TL 95 reduziram com a elevação da temperatura em todos os estágios de T. castaneum avaliados. O estágio de larva de cinco dias foi a mais susceptível à combinação de dióxido de carbono e fosfina. De acordo com os resultados, a combinação do dióxido de carbono com a fosfina é alternativa potencial para diminuir a quantidade de fosfina aplicada em produtos armazenados, por apresentar alta toxicidade para todos os estágios de T. castaneum sob diferentes temperaturas.Palavras-chave: armazenamento, fumigação, atmosfera modificada, inseto-praga Toxicity of the carbon dioxide and phosphine combination to Tribolium castaneum under different temperatures ABSTRACTThe objective of this work was to assess the effect of temperature on the toxicity of the carbon dioxide-phosphine combination for the developmental stages of Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae). The toxicity of combination of 5% carbon dioxide and 1 g m -3 phosphine in the developmental stages of egg, larvae of 5, 10 and 15 days, pupae and adult of T. castaneum was studied under the temperatures of 25, 30, 35, 40 and 45°C, through the estimation of lethal insect exposure times of 50 and 95% (LT 50 and LT 95 ). For that, time-response curves were established through bioassays with increasing periods of exposure to the combination of carbon dioxide and phosphine. A reduction of LT 50 and LT 95 was observed with temperature increase in all developmental stages of T. castaneum evaluated. The 5-day old larva was the developmental stage most susceptible to the combination of carbon dioxide and phosphine. According to the results, the combination of carbon dioxide with phosphine is a potential alternative to reduce the amount of phosphine applied on stored products, due to high toxicity in all developmental stages of T. castaneum under different temperatures.

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“…Relatively few studies have been done on insecticidal activity or fumigant toxicity of caryophyllene oxide. Its high toxicity may result from the inhibition of the mitochondrial electron transport system because changes in the concentration of oxygen or carbon dioxide may affect respiration rate of insect, thus eliciting fumigant toxicity effects [42,43]. Several reports indicate that essential oils and monoterpenoids cause insect mortality by inhibiting acetylcholinesterase enzyme (AChE) activity.…”

Section: Mode Of Action Of Essential Oilsmentioning

confidence: 99%

Review Study on Larvicidal and Mosquito Repellent Activity of Volatile Oils Isolated from Medicinal Plants

Prabakaran¹,

Sivasubramanian²,

Veeramani³

et al. 2017

IJEAB

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Respiration of Rhyzopertha dominica (F.) at reduced oxygen concentrations

Cited by 63 publications

References 15 publications

Measurement techniques and application of electrical properties for nondestructive quality evaluation of foods—a review

Measurement techniques and application of electrical properties for nondestructive quality evaluation of foods—a review

Toxicidade da combinação de dióxido de carbono e fosfina sob diferentes temperaturas para Tribolium castaneum

Review Study on Larvicidal and Mosquito Repellent Activity of Volatile Oils Isolated from Medicinal Plants

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