Antioxidant-Enriched Leaf Water Extracts of Cinnamomum osmophloeum from Eleven Provenances and their Bioactive Flavonoid Glycosides
Chi-Lin Wu,Hui-Ting Chang,Yen-Ray Hsui,Yu-Wen Hsu,Ju-Yun Liu,Sheng-Yang Wang,Shang-Tzen Chang +6 more
TLDR
In this paper, the authors investigated the antioxidant properties of water extracts of C. osmophloeum leaves from eleven provenances (CO1-CO11) and their bioactive phytochemicals.Abstract:
The study was designed to investigate the antioxidant activities of water extracts of C. osmophloeum leaves from eleven provenances (CO1-CO11) and their bioactive phytochemicals. Results revealed that leaf water extracts contained antioxidant phytochemicals and showed efficacy as antioxidants. Among varied leaf water extracts, water extract of CO4 showed the highest total phenolic content (160.9 mg/g) and superior free radical scavenging ability with the IC50 values of 10.3 and 16.9 μg/mL for DPPH and superoxide radical scavenging assays, respectively. It was also found to exhibit the best metal chelating ability and reducing power. According to the multiple spectral analyses, bioactive phytochemicals of leaf water extracts were flavonoid glycosides, including kaempferol-7-O-rhamnoside and kaempferol-3,7-O-dirhamnoside. Leaf water extracts of C. osmophloeum with high performance of antioxidant efficacy have great potential as a natural daily supplement.read more
Citations
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Thermal Degradation of Linalool-Chemotype Cinnamomum osmophloeum Leaf Essential Oil and Its Stabilization by Microencapsulation with β-Cyclodextrin.
TL;DR: In this paper, the thermal degradation of linalool-chemotype Cinnamomum osmophloeum leaf essential oil and the stability effect of microencapsulation of leaf essential oils with β-cyclodextrin were studied.
Journal ArticleDOI
Chemical constituents from the leaves of Cinnamomum parthenoxylon (Jack) Meisn. (Lauraceae)
Xuan Wei,Guo-Hui Li,Xiao-Ling Wang,Ji-Xiang He,Xiao-Ning Wang,Dong-Mei Ren,Hong-Xiang Lou,Tao Shen +7 more
TL;DR: All of the isolated compounds 1–8 are reported for the first time in the species C. parthenoxylon, firstly isolated from genus Cinnamomum.
Journal ArticleDOI
Inhibitory effect of Cinnamomum osmophloeum Kanehira ethanol extracts on melanin synthesis via repression of tyrosinase expression.
Shih-Chieh Lee,Chun-Hao Chen,Chih-Wen Yu,Hsiao Ling Chen,Wei-Tung Huang,Yun-Shiang Chang,Shu-Hsien Hung,Tai-Lin Lee +7 more
TL;DR: C. osmophloeum Kanehira neutralized the IBMX-induced increase in melanin content in B16-F10 cells by inhibiting tyrosinase gene expression at the level of transcription, and the results demonstrate that the ethanol extracts protect cells from UV exposure.
Journal ArticleDOI
Xanthine Oxidase Inhibitory Activity and Thermostability of Cinnamaldehyde-Chemotype Leaf Oil of Cinnamomum osmophloeum Microencapsulated with β-Cyclodextrin.
TL;DR: It is concluded that the lifetime of C. osmophloeum leaf oil can be effectively improved by microencapsulation, and leaf oil microcapsules possess superior xanthine oxidase inhibitory activity.
Journal ArticleDOI
Evaluation of Antioxidant, Anticholinesterase and Antityrosinase Activities of Malaysian Cinnamomum Species
TL;DR: These bioactivities indicate that some Cinnamomum species have therapeutic potential in medicinal research and development of new drugs candidates.
References
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