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- Publisher Website: 10.1021/jf980432h
- Scopus: eid_2-s2.0-0032939403
- PMID: 10552375
- WOS: WOS:000079227300006
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Article: Accurate estimation of sweetpotato amylase activity by flour viscosity analysis
Title | Accurate estimation of sweetpotato amylase activity by flour viscosity analysis |
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Authors | |
Keywords | Amylase activity Ipomoea batatas Peak viscosity Rapid Visco-Analyzer Sweetpotato Swelling volume Viscoamylograph |
Issue Date | 1999 |
Publisher | American Chemical Society. The Journal's web site is located at http://pubs.acs.org/journal/jafcau |
Citation | Journal Of Agricultural And Food Chemistry, 1999, v. 47 n. 3, p. 832-835 How to Cite? |
Abstract | Sweetpotato flour (SPF), prepared from 44 genotypes adapted to Philippine conditions, showed wide variation in Rapid Visco-Analyzer (RVA) pasting characteristics due to its variation in composition and endogenous amylase activity. The RVA pasting parameters of peak viscosity determined in water (PV1) and that determined in 0.05 mM AgNO 3 (used as an amylase inhibitor) (PV2) were successfully used to estimate α-amylase activity. The correlation of the ratio (PV2-PV1)/PV1 to α-amylase activity was 0.96 (p < 0.01, N = 44). Swelling volume measurements were not found to be suitable for prediction of α-amylase activity. |
Persistent Identifier | http://hdl.handle.net/10722/178664 |
ISSN | 2023 Impact Factor: 5.7 2023 SCImago Journal Rankings: 1.114 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Collado, LS | en_US |
dc.contributor.author | Corke, H | en_US |
dc.date.accessioned | 2012-12-19T09:49:01Z | - |
dc.date.available | 2012-12-19T09:49:01Z | - |
dc.date.issued | 1999 | en_US |
dc.identifier.citation | Journal Of Agricultural And Food Chemistry, 1999, v. 47 n. 3, p. 832-835 | en_US |
dc.identifier.issn | 0021-8561 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/178664 | - |
dc.description.abstract | Sweetpotato flour (SPF), prepared from 44 genotypes adapted to Philippine conditions, showed wide variation in Rapid Visco-Analyzer (RVA) pasting characteristics due to its variation in composition and endogenous amylase activity. The RVA pasting parameters of peak viscosity determined in water (PV1) and that determined in 0.05 mM AgNO 3 (used as an amylase inhibitor) (PV2) were successfully used to estimate α-amylase activity. The correlation of the ratio (PV2-PV1)/PV1 to α-amylase activity was 0.96 (p < 0.01, N = 44). Swelling volume measurements were not found to be suitable for prediction of α-amylase activity. | en_US |
dc.language | eng | en_US |
dc.publisher | American Chemical Society. The Journal's web site is located at http://pubs.acs.org/journal/jafcau | en_US |
dc.relation.ispartof | Journal of Agricultural and Food Chemistry | en_US |
dc.subject | Amylase activity | - |
dc.subject | Ipomoea batatas | - |
dc.subject | Peak viscosity | - |
dc.subject | Rapid Visco-Analyzer | - |
dc.subject | Sweetpotato | - |
dc.subject | Swelling volume | - |
dc.subject | Viscoamylograph | - |
dc.subject.mesh | Amylases - Metabolism | en_US |
dc.subject.mesh | Flour | en_US |
dc.subject.mesh | Solanaceae - Enzymology | en_US |
dc.subject.mesh | Vegetables - Enzymology | en_US |
dc.subject.mesh | Viscosity | en_US |
dc.title | Accurate estimation of sweetpotato amylase activity by flour viscosity analysis | en_US |
dc.type | Article | en_US |
dc.identifier.email | Corke, H: harold@hku.hk | en_US |
dc.identifier.authority | Corke, H=rp00688 | en_US |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.doi | 10.1021/jf980432h | en_US |
dc.identifier.pmid | 10552375 | - |
dc.identifier.scopus | eid_2-s2.0-0032939403 | en_US |
dc.identifier.hkuros | 40575 | - |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-0032939403&selection=ref&src=s&origin=recordpage | en_US |
dc.identifier.volume | 47 | en_US |
dc.identifier.issue | 3 | en_US |
dc.identifier.spage | 832 | en_US |
dc.identifier.epage | 835 | en_US |
dc.identifier.isi | WOS:000079227300006 | - |
dc.publisher.place | United States | en_US |
dc.identifier.scopusauthorid | Collado, LS=6603767372 | en_US |
dc.identifier.scopusauthorid | Corke, H=7007102942 | en_US |
dc.identifier.issnl | 0021-8561 | - |