GRL paste viscosity indicator for rapid determination of alpha-amylase in Canadian Red Spring Wheat

An instrument called the paste viscosity indicator (PVI) has been developed at the Grain Research laboratory (GRL) for measuring the paste viscosity of a heated ground grain-water slurry. Increased resistance offered to the stirring device upon heating a ground grain-water slurry is reflected in a v...

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Veröffentlicht in:	Canadian journal of plant science 1989-10, Vol.69 (4), p.1093-1100
Hauptverfasser:	Kilborn, R.H, Kruger, J.E, Tipples, K.H
Format:	Artikel
Sprache:	eng
Schlagworte:	alpha-amylase grain sprouting grains measurement monitoring pastes quality quality controls slurries spring wheat viscometers viscosity
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container_title	Canadian journal of plant science
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creator	Kilborn, R.H Kruger, J.E Tipples, K.H
description	An instrument called the paste viscosity indicator (PVI) has been developed at the Grain Research laboratory (GRL) for measuring the paste viscosity of a heated ground grain-water slurry. Increased resistance offered to the stirring device upon heating a ground grain-water slurry is reflected in a voltage signal representing the current requirements of a small DC motor. Paste viscosity decreases with increasing α-amylase levels in the ground grain. The viscosity is measured by a digital panel meter which retains its reading after a testing period of 3 or 3.5 min. The machine is portable (8.8 kg) and does not require a running water source. Operation is in simple steps and sample containers are low cost and disposable. The method correlates well with Falling Number method over the range of 65 – 425 s for Canadian Western Red Spring wheat. As such, it may be well-suited for implementation into a carlot or cargo monitoring program for assessment of preharvest sprout-damage.Key words: Amylase, wheat, control, sprout-damage
doi_str_mv	10.4141/cjps89-132
format	Article
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Increased resistance offered to the stirring device upon heating a ground grain-water slurry is reflected in a voltage signal representing the current requirements of a small DC motor. Paste viscosity decreases with increasing α-amylase levels in the ground grain. The viscosity is measured by a digital panel meter which retains its reading after a testing period of 3 or 3.5 min. The machine is portable (8.8 kg) and does not require a running water source. Operation is in simple steps and sample containers are low cost and disposable. The method correlates well with Falling Number method over the range of 65 – 425 s for Canadian Western Red Spring wheat. 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As such, it may be well-suited for implementation into a carlot or cargo monitoring program for assessment of preharvest sprout-damage.Key words: Amylase, wheat, control, sprout-damage</description><subject>alpha-amylase</subject><subject>grain sprouting</subject><subject>grains</subject><subject>measurement</subject><subject>monitoring</subject><subject>pastes</subject><subject>quality</subject><subject>quality controls</subject><subject>slurries</subject><subject>spring wheat</subject><subject>viscometers</subject><subject>viscosity</subject><issn>0008-4220</issn><issn>1918-1833</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1989</creationdate><recordtype>article</recordtype><recordid>eNotkFFLwzAUhYMoOKcv_gHzLFRzkzRJH2XoFArC5vAx3DbJlrG1JSnC_r2V-XA4HDjncvkIuQf2JEHCc7sfsqkKEPyCzKACU4AR4pLMGGOmkJyza3KT836KGgybkXa5qumAefT0J-a2z3E80di52OLYJxomJRyio86PPh1jh2PsO9oHiodhhwUeTwfMfprQBXboInZ05R1dDyl2W_q98zjekquAh-zv_n1ONm-vX4v3ov5cfixe6qIFU45FaZTS3DSoDJa8ciVWlfCiKYOohOINaK0aKTUalE4F72QQykgIwHWjgYs5eTzfbVOfc_LBTk8cMZ0sMPuHx57x2AnPVH44lwP2FrcpZrtZcwaCcaU451L8ApxKYdI</recordid><startdate>19891001</startdate><enddate>19891001</enddate><creator>Kilborn, R.H</creator><creator>Kruger, J.E</creator><creator>Tipples, K.H</creator><scope>FBQ</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>19891001</creationdate><title>GRL paste viscosity indicator for rapid determination of alpha-amylase in Canadian Red Spring Wheat</title><author>Kilborn, R.H ; Kruger, J.E ; Tipples, K.H</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c185t-5866728ba68a529d5a993e3b5f39362b1776b447a8a4d6fed4f36841f127b7123</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1989</creationdate><topic>alpha-amylase</topic><topic>grain sprouting</topic><topic>grains</topic><topic>measurement</topic><topic>monitoring</topic><topic>pastes</topic><topic>quality</topic><topic>quality controls</topic><topic>slurries</topic><topic>spring wheat</topic><topic>viscometers</topic><topic>viscosity</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kilborn, R.H</creatorcontrib><creatorcontrib>Kruger, J.E</creatorcontrib><creatorcontrib>Tipples, K.H</creatorcontrib><collection>AGRIS</collection><collection>CrossRef</collection><jtitle>Canadian journal of plant science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kilborn, R.H</au><au>Kruger, J.E</au><au>Tipples, K.H</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>GRL paste viscosity indicator for rapid determination of alpha-amylase in Canadian Red Spring Wheat</atitle><jtitle>Canadian journal of plant science</jtitle><date>1989-10-01</date><risdate>1989</risdate><volume>69</volume><issue>4</issue><spage>1093</spage><epage>1100</epage><pages>1093-1100</pages><issn>0008-4220</issn><eissn>1918-1833</eissn><abstract>An instrument called the paste viscosity indicator (PVI) has been developed at the Grain Research laboratory (GRL) for measuring the paste viscosity of a heated ground grain-water slurry. 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language	eng
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source	EZB-FREE-00999 freely available EZB journals
subjects	alpha-amylase grain sprouting grains measurement monitoring pastes quality quality controls slurries spring wheat viscometers viscosity
title	GRL paste viscosity indicator for rapid determination of alpha-amylase in Canadian Red Spring Wheat
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