authors |
Santos, SAO; Freire, CSR; Domingues, MRM; Silvestre, AJD; Neto, CP |
nationality |
International |
journal |
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY |
author keywords |
Eucalyptus globulus Labill.; bark; phenolic compounds; flavonoids; HPLC-ESI-MS; tandem mass spectrometry |
keywords |
MOLECULAR-WEIGHT POLYPHENOLS; E-RUDIS; HYDROLYZABLE TANNINS; STEM BARK; ACID; CAMALDULENSIS; FLAVONOL; LEAVES; WOOD; AGLYCONES |
abstract |
High-performance liquid chromatography electrospray ionization mass spectrometry (HPLC-ESI-MS) and tandem mass spectrometry (MS") were used to investigate the phenolic constituents in methanol, water, and methanol/water extracts of Eucalyptus globulus Labill. bark. Twenty-nine phenolic compounds were identified, 16 of them referenced for the first time as constituents of E. globulus bark, namely, quinic, dihydroxyphenylacetic, and caffeic acids, bis(hexahydroxydiphenoyl (HHDP))-glucose, galloyl-bis(HHDP)-glucose, galloyl-HHDP-glucose, isorhamentin-hexoside, quercetin-hexoside, methylellagic acid (EA) pentose conjugate, myricetin-rhamnoside, isorhamnetin-rhamnoside, mearnsetin, phloridzin, mearnsetin-hexoside, luteolin, and a proanthocyanidin B-type dimer. Digalloylglucose was identified as the major compound in the methanol and methanol/water extracts, followed by isorhamnetin-rhamnoside in the methanol extract and by catechin in the methanol/water extract, whereas in the water extract catechin and galloyl- HHDP-glucose were identified as the predominant components. The methanol/water extract was shown be the most efficient to isolate phenolic compounds identified in E. globulus bark. |
publisher |
AMER CHEMICAL SOC |
issn |
0021-8561 |
year published |
2011 |
volume |
59 |
issue |
17 |
beginning page |
9386 |
ending page |
9393 |
digital object identifier (doi) |
10.1021/jf201801q |
web of science category |
Agriculture, Multidisciplinary; Chemistry, Applied; Food Science & Technology |
subject category |
Agriculture; Chemistry; Food Science & Technology |
unique article identifier |
WOS:000294585100043
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ciceco authors
impact metrics
journal analysis (jcr 2019):
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journal impact factor |
4.192 |
5 year journal impact factor |
4.289 |
category normalized journal impact factor percentile |
86.265 |
dimensions (citation analysis):
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altmetrics (social interaction):
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