Detection of Insect Infestation in Stored Foods

Rajendran, S.

doi:10.1016/s1043-4526(05)49005-1

Cited by 55 publications

(29 citation statements)

References 120 publications

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“…The differences in the spectral and temporal patterns of sounds produced by larvae and adults of A. obtectus correlate well with aspects of previous studies conducted on other postharvest insect pests that reported effects of insect size and stage on acoustic signal production (Rajendran 2005;Njoroge et al 2016). However, the results differ from numerous previous studies that found adult stages of insects to be producers of greater rates and louder sounds than the larvae.…”

Section: Spectral and Temporal Patterns Of Larval And Adult Signalssupporting

confidence: 76%

Detection of Adult Beetles Inside the Stored Wheat Mass Based on Their Acoustic Emissions

et al. 2015

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Section: Spectral and Temporal Patterns Of Larval And Adult Signalssupporting

confidence: 76%

Detection of Adult Beetles Inside the Stored Wheat Mass Based on Their Acoustic Emissions

et al. 2015

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“…However, these methods are not efficient and are time consuming (Neethirajan et al 2007) with poor accuracy for the developing life stages of pests. 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.…”

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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“…During storage, the quality and quantity of the produce is also affected by birds, rodents and microorganisms (Rajendran, 1999). Insect and microbial attack proceeds increase in moisture content (Multon, 1989) followed by some biochemical changes in the grain legumes (Mendki et al, 2001).…”

Section: (Ii) Insect Pestsmentioning

confidence: 99%

Plant metabolites: an alternative and sustainable approach towards post harvest pest management in pulses

Salunke

Prakash

Vishwakarma

et al. 2009

Physiol Mol Biol Plants

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Grain legumes are an important source of proteins in vegetarian diet besides their role in biological nitrogen fixation. They are prone to heavy pest infestation both on and off the field. Pest associated losses are an important contributing factor towards declining per capita availability of grain legumes. Synthetic chemical pesticides have played an important role in crop preservation, however their incessant use has posed several environmental and human health concerns. Methyl bromide and phosphine are commonly used for the post harvest preservation of grain legumes. However, the former has to be phased out by 2015 as per the Montreal protocol whereas the latter is showing development of resistance to it by the insects. In the light of this, alternative, safer and sustainable strategies are needed for crop protection. Plants can serve as a rich source of bioactive chemicals for this purpose. Both primary as well as secondary metabolites can be evaluated against the target pests. The paper reviews the status of research in the area of use of plant metabolites in post harvest pest management of grain legumes.

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Detection of Insect Infestation in Stored Foods

Cited by 55 publications

References 120 publications

Detection of Adult Beetles Inside the Stored Wheat Mass Based on Their Acoustic Emissions

Detection of Adult Beetles Inside the Stored Wheat Mass Based on Their Acoustic Emissions

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

Plant metabolites: an alternative and sustainable approach towards post harvest pest management in pulses

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