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- Publisher Website: 10.1021/jf980678m
- Scopus: eid_2-s2.0-0032913555
- PMID: 10564006
- WOS: WOS:000079899000034
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Article: Degradation of ginsenosides in American ginseng (Panax quinquefolium) extracts during microwave and conventional heating
Title | Degradation of ginsenosides in American ginseng (Panax quinquefolium) extracts during microwave and conventional heating |
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Authors | |
Keywords | Degradation Ginsenosides Heating Microwave Panax quinquefolium |
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. 4, p. 1501-1505 How to Cite? |
Abstract | The degradation of ginsenosides in American ginseng (Panax quinquefolium) extracts during microwave and water (oil) bath heating (conventional heating) was investigated. Both the 50% ethanol-water extracts and the aqueous extracts were boiled in a modified laboratory microwave oven and in a water (or oil) bath, respectively. The neutral ginsenosides (Rb 1, Rc, Rd, and Re) and malonyl ginsenosides (m-Rb 1, m-Rc, and m-Rd) were determined by reverse-phase high-performance liquid chromatography. The results showed that the degradation of ginsenosides in 50% ethanol-water extracts was a first-order reaction. The malonyl ginsenosides were much less stable than the corresponding neutral ginsenosides, with the rate constant value of the malonyl ginsenosides being 3-60 times that of the neutral ginsenosides. At the same temperature, the effect of microwave heating on the degradation of ginsenosides was the same as that of conventional heating. |
Persistent Identifier | http://hdl.handle.net/10722/178662 |
ISSN | 2023 Impact Factor: 5.7 2023 SCImago Journal Rankings: 1.114 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Ren, G | en_US |
dc.contributor.author | Chen, F | en_US |
dc.date.accessioned | 2012-12-19T09:49:00Z | - |
dc.date.available | 2012-12-19T09:49:00Z | - |
dc.date.issued | 1999 | en_US |
dc.identifier.citation | Journal Of Agricultural And Food Chemistry, 1999, v. 47 n. 4, p. 1501-1505 | en_US |
dc.identifier.issn | 0021-8561 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/178662 | - |
dc.description.abstract | The degradation of ginsenosides in American ginseng (Panax quinquefolium) extracts during microwave and water (oil) bath heating (conventional heating) was investigated. Both the 50% ethanol-water extracts and the aqueous extracts were boiled in a modified laboratory microwave oven and in a water (or oil) bath, respectively. The neutral ginsenosides (Rb 1, Rc, Rd, and Re) and malonyl ginsenosides (m-Rb 1, m-Rc, and m-Rd) were determined by reverse-phase high-performance liquid chromatography. The results showed that the degradation of ginsenosides in 50% ethanol-water extracts was a first-order reaction. The malonyl ginsenosides were much less stable than the corresponding neutral ginsenosides, with the rate constant value of the malonyl ginsenosides being 3-60 times that of the neutral ginsenosides. At the same temperature, the effect of microwave heating on the degradation of ginsenosides was the same as that of conventional heating. | 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 | Degradation | - |
dc.subject | Ginsenosides | - |
dc.subject | Heating | - |
dc.subject | Microwave | - |
dc.subject | Panax quinquefolium | - |
dc.subject.mesh | Cooking | en_US |
dc.subject.mesh | Ginsenosides | en_US |
dc.subject.mesh | Hot Temperature | en_US |
dc.subject.mesh | Microwaves | en_US |
dc.subject.mesh | Panax - Radiation Effects | en_US |
dc.subject.mesh | Plant Extracts | en_US |
dc.subject.mesh | Plants, Medicinal | en_US |
dc.subject.mesh | Saponins - Chemistry - Radiation Effects | en_US |
dc.title | Degradation of ginsenosides in American ginseng (Panax quinquefolium) extracts during microwave and conventional heating | en_US |
dc.type | Article | en_US |
dc.identifier.email | Chen, F: sfchen@hku.hk | en_US |
dc.identifier.authority | Chen, F=rp00672 | en_US |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.doi | 10.1021/jf980678m | en_US |
dc.identifier.pmid | 10564006 | - |
dc.identifier.scopus | eid_2-s2.0-0032913555 | en_US |
dc.identifier.hkuros | 45416 | - |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-0032913555&selection=ref&src=s&origin=recordpage | en_US |
dc.identifier.volume | 47 | en_US |
dc.identifier.issue | 4 | en_US |
dc.identifier.spage | 1501 | en_US |
dc.identifier.epage | 1505 | en_US |
dc.identifier.isi | WOS:000079899000034 | - |
dc.publisher.place | United States | en_US |
dc.identifier.scopusauthorid | Ren, G=36681498500 | en_US |
dc.identifier.scopusauthorid | Chen, F=7404907980 | en_US |
dc.identifier.issnl | 0021-8561 | - |