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Article: Raman spectroscopic determination of the degree of cationic modification in waxy maize starches
Title | Raman spectroscopic determination of the degree of cationic modification in waxy maize starches |
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Authors | |
Keywords | Cationic modification FT Raman spectroscopy Modified starch |
Issue Date | 1999 |
Publisher | Taylor & Francis Inc. The Journal's web site is located at http://www.tandf.co.uk/journals/titles/00032719.asp |
Citation | Analytical Letters, 1999, v. 32 n. 15, p. 3049-3058 How to Cite? |
Abstract | Waxy (essentially amylose-free) maize starch was chemically modified to varying degrees by treatment with 3-chloro-2-hydroxypropyltrimethyl ammonium chloride (CHPTAC), and the degree of cationic modification was determined by a standard wet chemistry method. FT-Raman spectra of the modified starches were taken, and a characteristic Raman band ~761 cm -1 was found. This 761 cm -1 Raman band's intensity depended on the level of cationic modification of the starch. The ratio of intensity of the ~761 cm -1 band to a ~715 cm -1 C-C stretch Raman band (used as an internal standard) was plotted versus the amount of cationic modification derived by titration analysis, and a linear fit was obtained with a correlation of 0.998. The FT-Raman spectroscopy method presented here demonstrates a rapid non-destructive way to determine the level of cationic modification of waxy maize starch, and should be suitable for use with cationic modified starches of any amylose content. |
Persistent Identifier | http://hdl.handle.net/10722/68530 |
ISSN | 2023 Impact Factor: 1.6 2023 SCImago Journal Rankings: 0.351 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Phillips, DL | en_HK |
dc.contributor.author | Xing, J | en_HK |
dc.contributor.author | Liu, H | en_HK |
dc.contributor.author | Chong, CK | en_HK |
dc.contributor.author | Corke, H | en_HK |
dc.date.accessioned | 2010-09-06T06:05:26Z | - |
dc.date.available | 2010-09-06T06:05:26Z | - |
dc.date.issued | 1999 | en_HK |
dc.identifier.citation | Analytical Letters, 1999, v. 32 n. 15, p. 3049-3058 | en_HK |
dc.identifier.issn | 0003-2719 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/68530 | - |
dc.description.abstract | Waxy (essentially amylose-free) maize starch was chemically modified to varying degrees by treatment with 3-chloro-2-hydroxypropyltrimethyl ammonium chloride (CHPTAC), and the degree of cationic modification was determined by a standard wet chemistry method. FT-Raman spectra of the modified starches were taken, and a characteristic Raman band ~761 cm -1 was found. This 761 cm -1 Raman band's intensity depended on the level of cationic modification of the starch. The ratio of intensity of the ~761 cm -1 band to a ~715 cm -1 C-C stretch Raman band (used as an internal standard) was plotted versus the amount of cationic modification derived by titration analysis, and a linear fit was obtained with a correlation of 0.998. The FT-Raman spectroscopy method presented here demonstrates a rapid non-destructive way to determine the level of cationic modification of waxy maize starch, and should be suitable for use with cationic modified starches of any amylose content. | en_HK |
dc.language | eng | en_HK |
dc.publisher | Taylor & Francis Inc. The Journal's web site is located at http://www.tandf.co.uk/journals/titles/00032719.asp | en_HK |
dc.relation.ispartof | Analytical Letters | en_HK |
dc.subject | Cationic modification | en_HK |
dc.subject | FT Raman spectroscopy | en_HK |
dc.subject | Modified starch | en_HK |
dc.title | Raman spectroscopic determination of the degree of cationic modification in waxy maize starches | en_HK |
dc.type | Article | en_HK |
dc.identifier.openurl | http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0003-2719&volume=32&issue=15&spage=3049&epage=3058&date=1999&atitle=Raman+spectroscopic+determination+of+the+degree+of+cationic+modification+in+waxy+maize+starches | en_HK |
dc.identifier.email | Phillips, DL: phillips@hku.hk | en_HK |
dc.identifier.email | Corke, H: harold@hku.hk | en_HK |
dc.identifier.authority | Phillips, DL=rp00770 | en_HK |
dc.identifier.authority | Corke, H=rp00688 | en_HK |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1080/00032719908543026 | - |
dc.identifier.scopus | eid_2-s2.0-0032741612 | en_HK |
dc.identifier.hkuros | 50399 | en_HK |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-0032741612&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 32 | en_HK |
dc.identifier.issue | 15 | en_HK |
dc.identifier.spage | 3049 | en_HK |
dc.identifier.epage | 3058 | en_HK |
dc.identifier.isi | WOS:000084118900011 | - |
dc.publisher.place | United States | en_HK |
dc.identifier.scopusauthorid | Phillips, DL=7404519365 | en_HK |
dc.identifier.scopusauthorid | Xing, J=37162498100 | en_HK |
dc.identifier.scopusauthorid | Liu, H=7409750275 | en_HK |
dc.identifier.scopusauthorid | Chong, CK=7202196276 | en_HK |
dc.identifier.scopusauthorid | Corke, H=7007102942 | en_HK |
dc.identifier.issnl | 0003-2719 | - |