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Article: Chemical components and antioxidant activity of the volatile oil from Cassia tora L. seed prepared by supercritical fluid extraction

TitleChemical components and antioxidant activity of the volatile oil from Cassia tora L. seed prepared by supercritical fluid extraction
Authors
Issue Date2007
PublisherBlackwell Publishing, Inc.
Citation
Journal Of Food Lipids, 2007, v. 14 n. 4, p. 411-423 How to Cite?
AbstractThe seed of Cassia tora L. has been used as a traditional Chinese medicine for a long time and it is also an herbal tea in China. In this research, its volatile oil was recovered by employing supercritical fluid extraction using carbon dioxide and analyzed by gas chromatography (GC) and GC-mass spectrometry. The main components of the volatile oil were elucidated as (Z,Z)-9,12- octadecadienoic acid (26.74%), oleic acid (24.15%), n-hexadecanoic acid (13.99%), chrysophanol (7.26%), (E)-9-octadecenoic acid (4.52%) and octadecanoic acid (4.44%). This volatile oil was characterized by a high content of aliphatic acids (75.90%) and anthraquinones (7.26%). In the antioxidant assays, the volatile oil from C. tora L. seed demonstrated 2,2′-diphenyl-1- picryhydrazyl radical-scavenging activity in the concentration range from 20 to 500 g/mL, with the 50% inhibitory concentration (IC 50) value at 137 g/mL; it also showed a significant inhibitory effect against hydroxyl radicals with an IC 50 value of 67 g/mL, lower than that of quercetin (IC 50 = 8.15 g/mL), but superior to that of 4-terpineol (IC 50 = 87.5 g/mL). The observed antioxidant activity of this volatile oil is probably caused by the presence of high levels of chrysophanol and, possibly, (Z,Z)-9,12-octadecadienoic acid. © 2007, Blackwell Publishing.
Persistent Identifierhttp://hdl.handle.net/10722/89223
ISSN
2011 Impact Factor: 1.273
2012 SCImago Journal Rankings: 0.430
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorZhang, Yen_HK
dc.contributor.authorWei, Den_HK
dc.contributor.authorGuo, Sen_HK
dc.contributor.authorZhang, Xen_HK
dc.contributor.authorWang, Men_HK
dc.contributor.authorChen, Fen_HK
dc.date.accessioned2010-09-06T09:54:06Z-
dc.date.available2010-09-06T09:54:06Z-
dc.date.issued2007en_HK
dc.identifier.citationJournal Of Food Lipids, 2007, v. 14 n. 4, p. 411-423en_HK
dc.identifier.issn1065-7258en_HK
dc.identifier.urihttp://hdl.handle.net/10722/89223-
dc.description.abstractThe seed of Cassia tora L. has been used as a traditional Chinese medicine for a long time and it is also an herbal tea in China. In this research, its volatile oil was recovered by employing supercritical fluid extraction using carbon dioxide and analyzed by gas chromatography (GC) and GC-mass spectrometry. The main components of the volatile oil were elucidated as (Z,Z)-9,12- octadecadienoic acid (26.74%), oleic acid (24.15%), n-hexadecanoic acid (13.99%), chrysophanol (7.26%), (E)-9-octadecenoic acid (4.52%) and octadecanoic acid (4.44%). This volatile oil was characterized by a high content of aliphatic acids (75.90%) and anthraquinones (7.26%). In the antioxidant assays, the volatile oil from C. tora L. seed demonstrated 2,2′-diphenyl-1- picryhydrazyl radical-scavenging activity in the concentration range from 20 to 500 g/mL, with the 50% inhibitory concentration (IC 50) value at 137 g/mL; it also showed a significant inhibitory effect against hydroxyl radicals with an IC 50 value of 67 g/mL, lower than that of quercetin (IC 50 = 8.15 g/mL), but superior to that of 4-terpineol (IC 50 = 87.5 g/mL). The observed antioxidant activity of this volatile oil is probably caused by the presence of high levels of chrysophanol and, possibly, (Z,Z)-9,12-octadecadienoic acid. © 2007, Blackwell Publishing.en_HK
dc.languageengen_HK
dc.publisherBlackwell Publishing, Inc.en_HK
dc.relation.ispartofJournal of Food Lipidsen_HK
dc.titleChemical components and antioxidant activity of the volatile oil from Cassia tora L. seed prepared by supercritical fluid extractionen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1065-7258&volume=14&spage=411&epage=423&date=2007&atitle=Chemical+Components+and+Antioxidant+Activity+of+the+Volatile+Oil+from+Cassia+tora+L.+Seed+Prepared+by+Supercritical+Fluid+Extractionen_HK
dc.identifier.emailWang, M: mfwang@hku.hken_HK
dc.identifier.emailChen, F: sfchen@hku.hken_HK
dc.identifier.authorityWang, M=rp00800en_HK
dc.identifier.authorityChen, F=rp00672en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1111/j.1745-4522.2007.00096.xen_HK
dc.identifier.scopuseid_2-s2.0-36448949051en_HK
dc.identifier.hkuros142348en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-36448949051&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume14en_HK
dc.identifier.issue4en_HK
dc.identifier.spage411en_HK
dc.identifier.epage423en_HK
dc.identifier.isiWOS:000251193900007-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridZhang, Y=37046394000en_HK
dc.identifier.scopusauthoridWei, D=24472144100en_HK
dc.identifier.scopusauthoridGuo, S=8514940700en_HK
dc.identifier.scopusauthoridZhang, X=35243719200en_HK
dc.identifier.scopusauthoridWang, M=7406691844en_HK
dc.identifier.scopusauthoridChen, F=7404907980en_HK
dc.identifier.citeulike1977714-

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