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Cashew Nut Quality as Influenced by Microwave Heating Used for Stored Grain Insect Control

The objective of this work is to investigate the effect of microwave power levels (240, 360, and 480 W) and exposure time (30, 60, 90, 120, 180, and 240 s) on various properties of cashew nuts being used for disinfestation. The nuts were analyzed for moisture content, temperature rise, colour, free...

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Detalles Bibliográficos
Autores principales: Das, Ipsita, Shah, Narendra G., Kumar, Girish
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi Publishing Corporation 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4745550/
https://www.ncbi.nlm.nih.gov/pubmed/26904638
http://dx.doi.org/10.1155/2014/516702
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author Das, Ipsita
Shah, Narendra G.
Kumar, Girish
author_facet Das, Ipsita
Shah, Narendra G.
Kumar, Girish
author_sort Das, Ipsita
collection PubMed
description The objective of this work is to investigate the effect of microwave power levels (240, 360, and 480 W) and exposure time (30, 60, 90, 120, 180, and 240 s) on various properties of cashew nuts being used for disinfestation. The nuts were analyzed for moisture content, temperature rise, colour, free fatty acid (FFA) and peroxide value (PV). Experiments were conducted according to the response surface methodology. Increase in microwave power level and exposure time caused a decrease in moisture content, increase in temperature, and change in colour. Microwave treatment to target temperatures of 50–55°C (unfavorable for insect survival) made the PV of cashew nut decrease to 1.10 to 1.66 meq O(2)/Kg (from an initial value of 2.08 ± 0.05) and FFA value to 0.11 to 0.51% (from an initial value of 0.68 ± 0.03). Though PV and FFA values of microwave treated cashew nut were found to increase after 6 months of storage at room conditions, the values were within the limits for acceptable quality. Microwave treated cashew nuts were free from infestation and rancidity even after 6 months of storage while the untreated nuts were found to be heavily infested at the end of 1 month of storage.
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spelling pubmed-47455502016-02-22 Cashew Nut Quality as Influenced by Microwave Heating Used for Stored Grain Insect Control Das, Ipsita Shah, Narendra G. Kumar, Girish Int J Food Sci Research Article The objective of this work is to investigate the effect of microwave power levels (240, 360, and 480 W) and exposure time (30, 60, 90, 120, 180, and 240 s) on various properties of cashew nuts being used for disinfestation. The nuts were analyzed for moisture content, temperature rise, colour, free fatty acid (FFA) and peroxide value (PV). Experiments were conducted according to the response surface methodology. Increase in microwave power level and exposure time caused a decrease in moisture content, increase in temperature, and change in colour. Microwave treatment to target temperatures of 50–55°C (unfavorable for insect survival) made the PV of cashew nut decrease to 1.10 to 1.66 meq O(2)/Kg (from an initial value of 2.08 ± 0.05) and FFA value to 0.11 to 0.51% (from an initial value of 0.68 ± 0.03). Though PV and FFA values of microwave treated cashew nut were found to increase after 6 months of storage at room conditions, the values were within the limits for acceptable quality. Microwave treated cashew nuts were free from infestation and rancidity even after 6 months of storage while the untreated nuts were found to be heavily infested at the end of 1 month of storage. Hindawi Publishing Corporation 2014 2014-10-09 /pmc/articles/PMC4745550/ /pubmed/26904638 http://dx.doi.org/10.1155/2014/516702 Text en Copyright © 2014 Ipsita Das et al. https://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Das, Ipsita
Shah, Narendra G.
Kumar, Girish
Cashew Nut Quality as Influenced by Microwave Heating Used for Stored Grain Insect Control
title Cashew Nut Quality as Influenced by Microwave Heating Used for Stored Grain Insect Control
title_full Cashew Nut Quality as Influenced by Microwave Heating Used for Stored Grain Insect Control
title_fullStr Cashew Nut Quality as Influenced by Microwave Heating Used for Stored Grain Insect Control
title_full_unstemmed Cashew Nut Quality as Influenced by Microwave Heating Used for Stored Grain Insect Control
title_short Cashew Nut Quality as Influenced by Microwave Heating Used for Stored Grain Insect Control
title_sort cashew nut quality as influenced by microwave heating used for stored grain insect control
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4745550/
https://www.ncbi.nlm.nih.gov/pubmed/26904638
http://dx.doi.org/10.1155/2014/516702
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