Abstract：
:Cinnamomum osmophloeum Kaneh. is an indigenous tree species in Taiwan. In this study, phytochemical characteristics and antioxidant activities of ethanolic extracts from the twigs of C. osmophloeum were investigated for the first time. The extracts were obtained successively using liquid-liquid partition to yield n-hexane (Hex), ethyl acetate (EtOAc), n-butanol (BuOH) and water fractions. The antioxidant activities of C. osmophloeum twig extracts were examined using various antioxidant assays, such as DPPH, NBT, reducing power, lipid peroxidation using mouse brain homogenates, metal chelating ability, and photochemiluminescence (PCL). In addition, total phenolic contents were also determined. Results revealed that the BuOH fraction exhibited the best performance in DPPH assay, NBT assay, reducing power assay and lipid peroxidation using mouse brain homogenates assay. Furthermore, the BuOH fraction has the highest total phenolic contents (496.7 mg of GAE/g). Consequently, kaempferol-7-O-rhamnoside was also isolated from the antioxidative BuOH fraction and its activity was also confirmed. These results demonstrated that ethanolic extracts of C. osmophloeum twigs have excellent antioxidant activities and thus it has great potential as a source for natural health products.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Chua MT,Tung YT,Chang STdoi
10.1016/j.biortech.2007.03.020subject
Has Abstractpub_date
2008-04-01 00:00:00pages
1918-25issue
6eissn
0960-8524issn
1873-2976pii
S0960-8524(07)00260-Xjournal_volume
99pub_type
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journal_title：Bioresource technology
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更新日期：2010-10-01 00:00:00
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pub_type： 杂志文章
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更新日期：2012-01-01 00:00:00
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更新日期：2003-08-01 00:00:00
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更新日期：2011-06-01 00:00:00
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pub_type： 杂志文章
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更新日期：2013-01-01 00:00:00
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pub_type： 杂志文章
doi：10.1016/j.biortech.2007.02.047
更新日期：2008-04-01 00:00:00
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doi：10.1016/j.biortech.2008.10.054
更新日期：2009-04-01 00:00:00
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journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2009.11.104
更新日期：2010-04-01 00:00:00
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pub_type： 杂志文章,评审
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更新日期：2020-03-01 00:00:00
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pub_type： 杂志文章
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更新日期：2001-12-01 00:00:00
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更新日期：2012-06-01 00:00:00
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更新日期：2011-10-01 00:00:00
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pub_type： 杂志文章,评审
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更新日期：2016-03-01 00:00:00
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更新日期：2013-08-01 00:00:00
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更新日期：2013-03-01 00:00:00
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更新日期：2017-01-01 00:00:00
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更新日期：2013-05-01 00:00:00
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更新日期：2015-09-01 00:00:00
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更新日期：2011-07-01 00:00:00
abstract：:A time-course analysis was conducted of thermophilic anaerobic digestion of dairy manure and wheat distillery thin stillage. Sequencing of chaperonin targets provided a phylogenetic survey of both bacteria and archaea in the digestate, along with an appraisal of the diversity of the reactor microbiome. A total of 1129...
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更新日期：2014-01-01 00:00:00
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