Total Polyphenol Content and Antioxidative Activity of Wild Grape (Vitis coignetiae) Extracts Depending on Ethanol Concentrations

정현진,; 박선빈,; 김선아,; 김현구,

doi:10.3746/jkfn.2007.36.12.1491

Cited by 43 publications

(7 citation statements)

References 16 publications

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“…The results indicated that 50% ethanol extracts exhibited slightly greater DPPH radical scavenging activities than the water, 70 and 95% ethanol extracts. Earlier research showed that the electron donating ability of wild grape extracts is the highest with 50% ethanol extracts followed by water and 100% ethanol extracts (29). Kim and Kim (11) reported that DPPH radical scavenging activity is affected by the quercetin level in onion.…”

Section: Resultsmentioning

confidence: 98%

Antioxidative properties of onion peel extracts against lipid oxidation in raw ground pork

Shim

Choi

Kim

et al. 2012

Food Sci Biotechnol

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Onion peels extracted with various concentrations of ethanol were examined for their extraction yield, total phenolic content, DPPH scavenging activity, and reducing power. Onion peel extracted with 50% ethanol exhibited higher extraction yields, total phenolic content, and DPPH scavenging activity than extracts from distilled water, 70 or 95% ethanol. Thus, the antioxidative efficiency to inhibit lipid oxidation of ascorbic acid (0.05%) and 50% ethanol extract of onion peel (0.05, 0.1, and 0.2%) in raw ground pork was investigated during chilled storage (16 days). The pH of the samples decreased considerably during storage (p<0.05). Addition of ethanol onion peel extract significantly improved the thiobarbituric acid reactive substances and peroxide values in raw ground pork meat (p<0.05). Therefore, onion peel extract by 50% ethanol is a very effective inhibitor of lipid oxidation and has potential as a natural antioxidant in raw ground pork.

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Section: Resultsmentioning

confidence: 98%

Antioxidative properties of onion peel extracts against lipid oxidation in raw ground pork

Shim

Choi

Kim

et al. 2012

Food Sci Biotechnol

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“…열매에는 phenolic acids, flavonoids와 같은 페놀 화합물과 플라보노이드, 안토시 아닌 등의 기능성 색소가 다량 함유되어 있다 (Kim, 1996). 과피 및 종자 추출물은 항산화 Park, 2011a;Park, 2011b;Bing et al, 2015;Won, 2009;Jeong et al, 2007;Choi et al, 2006a;Choi et al, 2006b), 항균 (Won & Kim, 2012), 항돌연변이 및 항암효과 (Kim & Jang, 2005 The absorbance was measured at 540 nm using a spectrophotometer. Hair dyeing was increased in dye intake (K/S) with increased dyeing temperature and time.…”

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confidence: 99%

Hair Dyeing and Colorfastness Using Extracts of Blueberry

Seo¹,

Park²

2017

Asian J Beauty Cosmetol

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Purpose: The purpose of this study is to examine the possibility of using anthocyanin pigments from wild grapes. Methods: Anthocyanin concentration was determined by measuring the absorbency of anthocyanin in wild grapes at 540 nm. Color changes were observed according to changes in temperature, time, and pH by color measurement. Results: The most effective conditions for hair dyeing using anthocyanin pigments was at 25℃ for 40 min. Unmordanted hair increased the dye intake (K/S) with increased dyeing temperature, and hair color changed from dark to bright red. Anthocyanin pigments are especially sensitive to pH, and dye intake decreased with increased pH. Higher acidity generally led to a stronger reddish tint, while higher alkalinity led to a decrease in red coloration and a stronger yellow tint. When dyeing hair, pre-, simultaneous-, and post-mordanting should be selected with consideration of the characteristics of the mordants themselves (dye intake, lightless, chroma, and color). Based on K/S only, pre-mordanting was effective for FeSO 4 , MgSO 4 , Na 2 CO 3 , MnSO 4 , and Co(NO 3 ) 2 ; simultaneous mordanting was effective for CuSO 4 , CH 3 COOH, and CaCO 3 ; and post-mordanting was effective for AlK(SO 4 ) 2 . The rate of colorfastness decreased with repeated shampooing. Conclusion: Extracts from wild grapes may be useful as a hair dye.

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“…Our study showed the antioxidant and anti-aging effects on ROS production of UMH extracts contain a lot of phytochemicals such as phenolic compounds. Phenolic compounds have been reported to have antioxidant, anti-aging, anti-tumor, and inhibition of hyperlipidemia as a mechanism for receiving the electrons within the phenolic hydroxyl groups in molecule [ 16 , 17 ]. In this study, UMH extract is confirmed to contain high levels of phenolic compounds and antioxidant activity.…”

Section: Discussionmentioning

confidence: 99%

Ulmus macrocarpa Hance Extracts Attenuated H2O2 and UVB-Induced Skin Photo-Aging by Activating Antioxidant Enzymes and Inhibiting MAPK Pathways

Choi

Lee

Kim

et al. 2017

IJMS

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To protect from reactive oxygen species (ROS) damages, skin cells have evolved to have antioxidant enzymes, such as copper and zinc-dependent superoxide dismutase (SOD1), mitochondrial manganese-dependent superoxide dismutase (SOD2), catalase (CAT), glutathione peroxidase (GPX), and glutathione reductase (GR), and suppressed the expression of matrix metalloproteinases (MMPs) through the mitogen-activated protein kinase (MAPK) signaling pathways, such as c-Jun N-terminal kinase (JNK) and p38. Bioactive compounds analyses were performed using a high-performance liquid chromatography-photodiode array detector (HPLC-PDA) system. The antioxidant activity of Ulmus macrocarpa Hance (UMH) extracts was estimated in vitro. The anti-aging activity of UMH extracts was estimated in vivo using the SKH-1 hairless mice. The UMH extracts reduced the H2O2-induced intracellular ROS production and the cell damages in human dermal fibroblasts (HDFs). Moreover, the H2O2-induced phosphorylation of JNK and p38 was detected in HDF and UMH extracts blocked the phosphorylation. These results suggest that UMH extracts can reduce the expression of MMPs and the reduced MMPs lead to the inhibition of collagen degradation. In addition, oral administration of the UMH extracts decreased the depth, thickness, and length of wrinkles on UVB exposed hairless mice. Therefore, UMH extracts play an advantage of the functional materials in antioxidant and anti-aging of skin.

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Total Polyphenol Content and Antioxidative Activity of Wild Grape (Vitis coignetiae) Extracts Depending on Ethanol Concentrations

Cited by 43 publications

References 16 publications

Antioxidative properties of onion peel extracts against lipid oxidation in raw ground pork

Antioxidative properties of onion peel extracts against lipid oxidation in raw ground pork

Hair Dyeing and Colorfastness Using Extracts of Blueberry

Ulmus macrocarpa Hance Extracts Attenuated H2O2 and UVB-Induced Skin Photo-Aging by Activating Antioxidant Enzymes and Inhibiting MAPK Pathways

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