DryCard<sup>TM</sup> — A Low-Cost Dryness Indicator for Dried Products

Mycotoxin contamination of food and feed is a significant health hazard in humid areas of the world. Fungal development can be halted if the water activity of dried products is kept below 0.65. This preliminary study evaluates the color response and response time of a low-cost humidity indicator tha...

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Main Authors:	James F. Thompson, Michael S. Reid, Lucia Felix, Irwin Donis-Gonzalez, Bertha Mjawa, and Jane Ambuko
Format:	Article
Language:	English
Published:	AIMS Press 2017-10-01
Series:	AIMS Agriculture and Food
Subjects:	Aflatoxin water activity equilibrium relative humidity grains dried food
Online Access:	http://www.aimspress.com/agriculture/article/1641/fulltext.html

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spelling	doaj-d677d8ed511c49faaa7fa335d968a1bc2020-11-25T00:20:40ZengAIMS PressAIMS Agriculture and Food2471-20862017-10-012433934410.3934/agrfood.2017.4.339agrfood-02-00339DryCard<sup>TM</sup> — A Low-Cost Dryness Indicator for Dried ProductsJames F. Thompson0Michael S. Reid1Lucia Felix2Irwin Donis-Gonzalez3Bertha Mjawa4and Jane Ambuko5Department of Biological & Agricultural Engineering, University of California, Davis, One Shields Ave, Davis, CA 95616, USA.Department of Plant Sciences, University of California, Davis, One Shields Ave, Davis, CA 95616, USA.Department of Biological & Agricultural Engineering, University of California, Davis, One Shields Ave, Davis, CA 95616, USA.Department of Biological & Agricultural Engineering, University of California, Davis, One Shields Ave, Davis, CA 95616, USA.Prime Minister’s Office, Marketing Infrastructure, Value Addition and Rural Finance Support Programme, P.O. Box 14416, Arusha, TanzaniaDepartment of Plant Science and Crop Protection, University of Nairobi, University Way, Nairobi, Kenya.Mycotoxin contamination of food and feed is a significant health hazard in humid areas of the world. Fungal development can be halted if the water activity of dried products is kept below 0.65. This preliminary study evaluates the color response and response time of a low-cost humidity indicator that estimates water activity. The DryCard<sup>TM</sup> has a consistent color response to relative humidity and its response time is fast enough to be used in practical situations for estimating water activity. The card comes with use instructions and it can be reused many times. It is a crucial tool to assist smallholder farmers and traders in ensuring their crops have been adequately dried.http://www.aimspress.com/agriculture/article/1641/fulltext.htmlAflatoxinwater activityequilibrium relative humiditygrainsdried food
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	James F. Thompson Michael S. Reid Lucia Felix Irwin Donis-Gonzalez Bertha Mjawa and Jane Ambuko
spellingShingle	James F. Thompson Michael S. Reid Lucia Felix Irwin Donis-Gonzalez Bertha Mjawa and Jane Ambuko DryCard<sup>TM</sup> — A Low-Cost Dryness Indicator for Dried Products AIMS Agriculture and Food Aflatoxin water activity equilibrium relative humidity grains dried food
author_facet	James F. Thompson Michael S. Reid Lucia Felix Irwin Donis-Gonzalez Bertha Mjawa and Jane Ambuko
author_sort	James F. Thompson
title	DryCard<sup>TM</sup> — A Low-Cost Dryness Indicator for Dried Products
title_short	DryCard<sup>TM</sup> — A Low-Cost Dryness Indicator for Dried Products
title_full	DryCard<sup>TM</sup> — A Low-Cost Dryness Indicator for Dried Products
title_fullStr	DryCard<sup>TM</sup> — A Low-Cost Dryness Indicator for Dried Products
title_full_unstemmed	DryCard<sup>TM</sup> — A Low-Cost Dryness Indicator for Dried Products
title_sort	drycard<sup>tm</sup> — a low-cost dryness indicator for dried products
publisher	AIMS Press
series	AIMS Agriculture and Food
issn	2471-2086
publishDate	2017-10-01
description	Mycotoxin contamination of food and feed is a significant health hazard in humid areas of the world. Fungal development can be halted if the water activity of dried products is kept below 0.65. This preliminary study evaluates the color response and response time of a low-cost humidity indicator that estimates water activity. The DryCard<sup>TM</sup> has a consistent color response to relative humidity and its response time is fast enough to be used in practical situations for estimating water activity. The card comes with use instructions and it can be reused many times. It is a crucial tool to assist smallholder farmers and traders in ensuring their crops have been adequately dried.
topic	Aflatoxin water activity equilibrium relative humidity grains dried food
url	http://www.aimspress.com/agriculture/article/1641/fulltext.html
work_keys_str_mv	AT jamesfthompson drycardsuptmsupalowcostdrynessindicatorfordriedproducts AT michaelsreid drycardsuptmsupalowcostdrynessindicatorfordriedproducts AT luciafelix drycardsuptmsupalowcostdrynessindicatorfordriedproducts AT irwindonisgonzalez drycardsuptmsupalowcostdrynessindicatorfordriedproducts AT berthamjawa drycardsuptmsupalowcostdrynessindicatorfordriedproducts AT andjaneambuko drycardsuptmsupalowcostdrynessindicatorfordriedproducts
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DryCard<sup>TM</sup> — A Low-Cost Dryness Indicator for Dried Products

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