Antioxidant activity and principles of Vietnam bitter tea Ilex kudingcha

Thương, Phương Thiện; Su, Nguyen Duy; Ngoc, Tran Minh; Hung, Tran Manh; Dang, Nguyen Hai; Thuan, Nguyen Duy; Bae, KiHwan; Oh, Won Keun

doi:10.1016/j.foodchem.2008.07.041

Cited by 48 publications

(45 citation statements)

References 21 publications

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“…The possible reason may be that Ku Ding tea was able to scavenge superoxide and free radicals and inhibit lipid peroxidation, so that the concentration of MDA was at a relatively low level, and SOD enzyme activity at the lower level could maintain the normal antioxidant status of the body. Some researchers have also demonstrated that Ku Ding tea or its extracts markedly exhibited antioxidant potency in scavenging free radicals and prevented RBC from hemolysis in in vitro or in vivo tests (Lau et al 2002, Liu et al 2009, Thuong et al 2009. The results of this study further supported that Ku Ding tea had antioxidation effect.…”

Section: Resultssupporting

confidence: 78%

Milk powder induced lipid peroxidation reduction using Ku Ding tea (Lactuca taiwaniana Maxim) in rats

et al. 2010

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The effects of Ku Ding tea (Lactuca taiwaniana Maxim) and milk powder on biochemical and immunological parameters of Sprague-Dawley rats were investigated and the possibility of use of Ku Ding tea to reduce physiological discomfort of drinking milk powder was assessed. Eighty rats were randomly assigned to four treatments: basal diet (control), basal diet plus whole milk powder (WM), basal diet plus Ku Ding tea (KD) and basal diet plus whole milk powder and Ku Ding tea (MK). Data was collected on animals' final body weight, hematological values, blood biochemical parameters, antioxidation parameters and immune organ weight index. Results showed that final body weight of male KD was significantly lower than that of WM. White blood cell count, monocyte count and granulocyte count of KD rats were significantly lower than those of WM. Compared to the control, single milk powder supplementation numerically increased plasma malondialdehyde. The malondialdehyde in the male KD and MK rats were lower than those in WM and control, although the differences were not significant. No significant differences were found in Na + K + -adenosine triphosphatase activity, spleen and thymus index in each group. Consumption of Ku Ding tea appeared to lower lipid peroxidation that was induced by milk powder in the rats.

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Section: Resultssupporting

confidence: 78%

Milk powder induced lipid peroxidation reduction using Ku Ding tea (Lactuca taiwaniana Maxim) in rats

et al. 2010

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“…The Folin-Ciocalteau method is simple and can be used in characterising botanical samples, for example sorghum (Awika, Rooney, & Waniska, 2004), soybean (Takahashi et al, 2005), white and black sesame seed (Shahidi, Liyana-Pathirana, & Wall, 2006). The result showed PKS extract contained high phenolic content compared with some other plants, such as black soybean seed (Astadi, Astuti, Santoso, & Nugraheni, 2009), bayberry (Zhou et al, 2009) and Vietnam bitter tea (Thuong, Nguyen, Ngo, et al, 2009). PKS was a nice potential antioxidant plant.…”

Section: Total Phenolic Contentmentioning

confidence: 99%

In vitro and in vivo antioxidant activity of Pinus koraiensis seed extract containing phenolic compounds

2009

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“…It is traditionally applied for treating obesity, hypertension, cardiovascular disease, hyperlipidemia and various other diseases [1]. Meanwhile, the different extracts and active components from Kuding tea, including triterpenes, triterpenoid saponins and chlorogenic acids (CGAs), have been reported to possess significant antioxidative [2,3], antiobesity [4], antidiabetic [5,6], anti-inflammatory [7], anti-atherosclerotic [8] and anticancer activities [9] in vitro or in vivo. CGAs are a large family of esters formed between quinic acid and one to four residues of certain cinnamic acids, most commonly caffeic, p-coumaric and ferulic [10,11].…”

Section: Introductionmentioning

confidence: 99%

“…The distinctive characteristic of CGAs is that they usually have many isomers owing to the different substituted positions of cinnamic acids on quinic acid. In the previous work, the isolation and structural identification of only 13 phenolic acids from Kuding tea have been reported [3]. A high-performance liquid chromatography (HPLC) method with DAD has also been developed for the simultaneous determination of 6 CGA derivatives [12].…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Qualitation and Quantitation of Chlorogenic Acids in Kuding Tea Using Ultra-High-Performance Liquid Chromatography–Diode Array Detection Coupled with Linear Ion Trap–Orbitrap Mass Spectrometer

et al. 2016

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Kuding tea, the leaves of Ilex Kudingcha C.J. Tseng, has been applied for treating obesity, hypertension, cardiovascular disease, hyperlipidemia, and so on. The chlorogenic acids (CGAs) in Kuding tea have shown excellent antioxidative, antiobesity, anti-atherosclerotic and anticancer activities. Nevertheless, the chemical profiles of CGAs in Kuding tea have not been comprehensively studied yet, which hinders further quality control. In the present study, a sensitive ultra-high-performance liquid chromatography-diode array detection coupled with a linear ion trap-Orbitrap (UHPLC-DAD-LTQ-Orbitrap) method was established to screen and identify CGAs in Kuding tea. Six CGA standards were first analyzed in negative ion mode with a CID-MS/MS experiment and then the diagnostic product ions (DPIs) were summarized. According to the retention behavior in the RP-ODS column, accurate mass measurement, DPIs and relevant bibliography data, a total of 68 CGA candidates attributed to 12 categories were unambiguously or preliminarily screened and characterized within 18 min of chromatographic time. This was the first systematic report on the distribution of CGAs in Kuding tea. Meanwhile, the contents of 6 major CGAs in Kuding tea were also determined by the UHPLC-DAD method. All the results indicated that the established analytical method could be employed as an effective technique for the comprehensive and systematic characterization of CGAs and quality control of the botanic extracts or Chinese medicinal formulas that contain various CGAs.

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Antioxidant activity and principles of Vietnam bitter tea Ilex kudingcha

Cited by 48 publications

References 21 publications

Milk powder induced lipid peroxidation reduction using Ku Ding tea (Lactuca taiwaniana Maxim) in rats

Milk powder induced lipid peroxidation reduction using Ku Ding tea (Lactuca taiwaniana Maxim) in rats

In vitro and in vivo antioxidant activity of Pinus koraiensis seed extract containing phenolic compounds

Simultaneous Qualitation and Quantitation of Chlorogenic Acids in Kuding Tea Using Ultra-High-Performance Liquid Chromatography–Diode Array Detection Coupled with Linear Ion Trap–Orbitrap Mass Spectrometer

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