Ha, Yeong-L.;Kim, Young-S.;Ahn, Chae-R.;Kweon, Jung-M.;Park, Cherl-W.;Ha, Young-K.;Kim, Jeong-O.
Journal of Life Science
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v.20
no.1
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pp.133-141
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2010
The protective effect of a mixed powder from solid-cultured and liquid-cultured Lentinus edodes mycelia (2:1, w/w) (designate LED) on the carbon tetrachloride ($CCl_4$)- and ethanol-induced hepatotoxicity of male Sprague-Dawley (SD) rat was investigated. In the $CCl_4$-induced rat hepatotoxicity experiment, rats of 4 groups (6 rats/group) were administere with Normal (0.2 ml distilled water), Control (0.2 ml distilled water), LED (LED 200 mg/kg BW + 0.2 ml distilled water), and Silymarin (200 mg/kg BW + 0.2 ml distilled water), p.o., daily for 2 weeks. Afterwards, all groups except for the Normal group were subjected to abdominal injection with $CCl_4$ ($CCl_4$ : corn oil, 1:1 v/v; 0.5 ml/kg BW). For the ethanol- induced rat hepatotoxicity experiment, rats were divided into 5 groups (5 rats/group): Normal; Pair-fed control (PFC); Control (ethanol); LED (ethanol + LED 200 mg/kg BW); and Silymarin (ethanol + silymarin 200 mg/kg BW). Rats of the Normal and PFC groups were fed a basal liquid diet, and rats of the Control, LED, and Silymarin groups were fed a liquid ethanol diet containing LED or Silymarin. Eight weeks later, blood and liver samples were collected to analyze biomarkers. In $CCl_4$-induced SD rats, LED elevated hepatic superoxide dismutase (SOD), catalase, and glutathione peroxidase (GSH peroxidase) activities and thiobarbituric reactive substances (TBARS) were reduced, resulting in the reduction of glutamate-oxalate transaminase (GOT), glutamate-pyruvate transaminase (GPT) and lactic dehydrogenase (LDH) activities in plasma. Similar results of these enzymes and biochemical markers in both liver tissues and plasma were seen in ethanol-induced hepatotoxicity of SD rats. In addition, elevated alcohol dehydrogenase (ADH) activity and reduced expression of cytochrome p450 mixed monooxygenase enzyme (CYP2E1) were seen in liver tissues from ethanol-treated rats by LED treatment. These effects of LED were similar to those of Silymarin. In in vitro experiments, LED showed antioxidant activity in a 2,2-diphenyl-1-picrylhydrazyl (DPPH) system and mouse liver mitochondria system induced by NADPH/$Fe^{2+}$ and cumine hydroperoxide (CuOOH). These results indicate that LED protected SD rat hepatotoxicity, induced by $CCl_4$ and ethanol, through its antioxidative activity and might be useful as a material for protection from hepatoxicity in humans.
Physiological activities of hot water extracts of 10 commercial instant curry powders and 6 spices, were investigated. All spice extracts except ginger showed significant antioxidant activities on the autoxidation of linoleic curry acid (p<0.01). Antioxidant activities of clove and fennel were significantly higher than ${\alpha}-tocopherol$, instant curry powders, and other spices, Red pepper $(52.8{\pm}2.13%)$, clove, and coriander showed significant inhibitory activities against angiotensin-I-converting enzyme (p<0.001). Cytotoxic effects of instant curry powder and spices against human cancer cell lines were examined through MTT assay. Black pepper $(29.31{\pm}2.21%\;cytotoxic\;rate)$ and cardamon $(19.41{\pm}3.92%)$ were effective against MCF-7 (p<0.01), Clove $(42.92{\pm}5.57%)$ against HeLa (p<0.01). Ginger $(34.21{\pm}1.11%)$, cardamon, and black pepper against A172 (p<0.001), garlic $(82.88{\pm}0.53%)$ against SN12C (p<0.001), garlic $(71.63{\pm}0.38%)$, red pepper, ginger, fenugreek, SPC, cumin, and MPC against SNU-638 (p<0.001), and cassia $(82.84{\pm}16.92%)$ against A549 (p<0.001).
Na, Hwan Sik;Kim, Jin Young;Park, Jong Soo;Choi, Gyeong Cheol;Yang, Soo In;Lee, Ji Heon;Cho, Jeong Young;Ma, Seung Jin
Food Science and Preservation
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v.21
no.1
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pp.62-68
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2014
This study was performed in order to investigate the functional components of 5 kinds of marine algae. We have collected 5 samples of marine algae, such as the sea mustard (Undaria pinnatifida), sea tangle (Laminaria iaponice), sea weed fusiforme (Hizikia fusiforme), green laver (Entetomotpha), laver (Phophyratenera), which have been harvested in Jeollanam-do. In order to examine the functional effects, 5 kinds of marine algae were extracted with hot water ($80^{\circ}C$, 4 hr), ethanol and methanol (R.T., 4 hr), and subcritical water extract (SWE, 3 MPa, $90^{\circ}C$, $150^{\circ}C$, $210^{\circ}C$). A higher yield of extract was obtained through SWE method (3 MPa, $210^{\circ}C$) in all of the samples obtained. The highest total sugar content was 427.4 mg/g in green laver extracted with SWE (3 MPa, $210^{\circ}C$). The content of the SWE total phenolic compounds was higher than that of the water and solvent (methanol, ethanol) extracts. The anti-oxidative activities of the extracts from 5 kinds of marine algae were examined through the DPPH radical scavenging activity test. The SWE (3 MPa, $150^{\circ}C$ and $210^{\circ}C$) of the marine algae was the highest among all of the extracts. As per the results, the SWE of the marine algae contained more functional components and it had a higher antioxidant activity than those of the other extracts. The $IC_{50}$ value of tyrosinase in seaweed fusiforme and laver were higher than those of the other samples. These results strongly support the possible use of marine algae as functional materials.
This study examined the effect of Momordica charantia L. (bitter melon: BM) on lipid and hepatic antioxidative enzyme levels in diabetic rats. Diabetes mellitus was induced in male Sprague-Dawley rats by injection of streptozotocin (STZ), and rats were fed for 4 weeks with experimental groups divided into four groups: a normal control group, STZ-control and STZ-BM 5% & STZ-BM 10% treated groups. Levels of free fatty acids (FFA), high-density lipoprotein cholesterol (HDL-chol), triglycerides (TG) in plasma and malondialdehyde (MDA) & protein in liver, catalase (CAT), superoxide dismutase (SOD), glutathione-S-transferase (GST), and xanthine oxidase (XOD) were measured in liver cytosol. Level of HDL-chol significantly increased in the STZ-BM 5% diabetic group. TG & FFA levels were significantly higher in all diabetic groups compared to the control group. MDA and protein levels were significantly higher in the STZ-BM 5% group compared to all other experimental group. CAT level was higher in the supplementary group with BM compared to the STZ-control group, although the difference was not significantly different. SOD level was not significant in any experimental groups. GST level was significantly higher in the BM-treated groups compared to the STZ-control group. XOD level was significantly lower in the BM 5% group and significantly decreased in all experimental groups. These results show that supplementation of BM fruit powder may have beneficial effects on diabetic complications and damage caused by oxidative stress.
This study investigated acetic acid fermentation properties and antioxidant activity of vinegar by addition of lemon grass to develop high quality vinegar by using lemongreass. Traditional brown rice wine contained 5% lemongrass powder and had an alcohol content of 7.2%. The wine was fermented by Acetobacter. sp. RIC-V and made into lemongrass vinegar (LV). The pH and total acidity of the LV were 3.13% and 7.21%, respectively. Fructose was detected whereas glucose, sucrose, and maltose were not detected. Among organic acids, acetic acid was highest at 3658.6 mg%; trace amounts of lactic acid, citric acid, malic acid, tartaric acid, and oxalic aicd were detected. Of the 17 free amino acids, glutamic acid, histidine, alanine, and proline were mainly detected. To conduct total polyphenol content and ABTS radical scavenging activity, 3% and 5% lemongrass powder (P3LV, P5LV) and 1%, 2%, and 3% of lemongrass extract (E1LV, E2LV, E3LV) were added to LV, respectively. Total phenolics increased as the added lemongrass powder and extract increased. Total phenolics were 490.9, 559.4, and $895.7{\mu}g$ gallic acid equivalents/mL in brown rice vinegar, LV, P5LV. ABTS radical scavenging activities were 43.2%, 58.0%, and 91.0% in brown rice vinegar, LV, P5LV, respectively. These results show that lemongrass vinegar has considerable potential as a high quality functional vinegar with antioxidative effects.
The purpose of this experiment was designed to investigate the effects of medicinal herbs (MH) extracts on dementia induced by trimethyltin chloride (TMT) in rats. Six-week-old male Sprague-Dawley rats were randomly divided into five groups; normal group (group 1), control group (group 2), MH extracts group (250, 500 mg/kg) (group 3, group 4) and positive control group (tacrine group, group 5). In the control group to induce dementia, a 2.5 mg/kg of TMT intraperitoneal injection was used for 14 days (1 per day) in the rats. In the MH extracts group 250 mg/kg and 500 mg/kg of MH extracts were medicated in an oral inoculation for 20 days (1 per day). After 30 minutes, a 2.5 mg/kg of TMT intraperitoneal injection, which causes dementia, was used for 14 days (1 per day). In the positive control group (Tacrine group) 10 mg/kg of Tacrine, the dementia treatment, was medicated in an oral inoculation. After 30 mintues, 1 mg/kg of TMT intraperitoneal injection, which causes dementia, was used for 14 days (1 per day). The present author observed the passive avoidance performance test, and memory ability test (Y maze test), the values of MDA, acetlycholinesterase (AchE) activity in the brain and antioxidant enzyme in serum. MH extracts significantly improved memory of AD model rats in the Y-maze test, and also significantly improved memory of AD model rats in the passive avoidance test. MH extracts significantly reduced AChE activity, and significantly increased the SOD level, but not catalase and MDA. From the results above, MH extracts is thought to be effective in the improvement of antioxidant enzymes and memory ability.
Journal of the Korean Society of Food Science and Nutrition
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v.32
no.8
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pp.1310-1317
/
2003
Effects of dietary cholesterol and/or taurine supplementation on plasma and hepatic lipid peroxidation status and antioxidant enzyme activities were evaluated in rats fed one of the following semisynthetic diets for 5 weeks: control diet (CD, cholesterol-free and taurine-free diet); high cholesterol diet (HCD, CD+1.5% cholesterol): high taurine diet (HTD, CD+1.5% taurine): high cholesterol and high taurine diet (HCHTD, HCD + 1.5% taurine). Plasma malondialdehyde (MDA) level was not influenced by dietary cholesterol or taurine supplementation, while hepatic MDA level was 70% higher in rats fed HCD compared to the value for CD rats (p<0.05). Our observation that taurine supplementation significantly decreased the hepatic MDA level of rats fed HCD, but failed to decrease lipid peroxidation of rats fed CD indicates that the protective effect of taurine in the liver against lipid peroxidation is manifested only under the hypercholesterolemic environment. Plasma and hepatic glutathione peroxidase (GSH-Px) activities were not affected by dietary supplementation of cholesterol or taurine. However, hepatic superoxide dismutase (SOD) activity was significantly reduced by dietary taurine supplementation (p <0.05), and thus significantly lower in rats fed HTD compared to the value for CD (p<0.05). Plasma total cholesterol concentration was positively correlated with hepatic cholesterol concentration as expected (r=0.712, p<0.001). Plasma (r=0.399, p<0.05) and hepatic cholesterol levels (r=0.429, p<0.05) showed a significantly positive correlation with hepatic MDA concentration, respectively. Plasma taurine concentration was negatively correlated with hepatic SOD activity (r=-0.481, p<0.01), and tended to be negatively correlated with hepatic GSH-Px activity without showing statistical significance (r=-0.188, p<0.05). These results indicate an antioxidative effect of taurine in rats with elevated level of lipid Peroxidation due to high intake of dietary cholesterol. Future application of taurine as a safe candidate for a hypolipidemic agent without adversely affecting body's antioxidant defense system is speculated.
Kim, Kyoung-Hee;Kim, Soo-Jeong;Yoon, Mi-Hyang;Byun, Myung-Woo;Jang, Soon-Ae;Yook, Hong-Sun
Journal of the Korean Society of Food Science and Nutrition
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v.40
no.3
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pp.335-342
/
2011
The purpose of this study was to investigate the effects of mugwort powder on the quality characteristics and antioxidant activity of Maejakgwa. Maejakgwa were prepared with mugwort powder at levels 0%, 1%, 3% and 5% ($60{\pm}1^{\circ}C$, 14 days). The lightness, redness, and yellowness values of Maejakgwa significantly reduced depending on mugwort powder. The hardness of Maejakgwa was decreased with the increase of storage period and increased with the increase of mugwort powder. In the sensory evaluations, the Maejakgwa prepared with 3% added mugwort powder received higher acceptance scores for the properties of color, taste, hardness, crispiness, adhesiveness and overall acceptability. As the mugwort powder content increased, acid value and peroxide value were decreased. With the increase of storage period, acid value and peroxide value of all sample increased but growth rate of these values decreased with the addition of the mugwort powder. DPPH (2,2-diphenyl-1-picrylhydrazyl) radical scavenging activity was improved significantly via the addition of mugwort powder and decreased as storage period increased. During storage period, Maejakgwa with mugwort powder showed a stronger antimicrobial effect in yeasts and molds than in total aerobic bacteria. Coliform bacteria were not detected in all samples. Also the antimicrobial activity was increased with the addition of the mugwort powder and decreased as storage period increased. The results show that addition of the mugwort powder to foods with fat such as Maejakgwa would be a useful way to enhance the antioxidant quality, sensory characteristics and shelf life.
Kim, Na-Mi;Koo, Bon-Suk;Lee, Seong-Kye;Hwang, Eui-Il;So, Seung-Ho;Do, Jae-Ho
Journal of Ginseng Research
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v.31
no.2
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pp.86-92
/
2007
This study was carried out to develop health & functional food by using Korean red ginseng for prevention of skin wrinkles. Effects of Korean red ginseng on the collagen biosynthesis and inhibition of matrix metalloproteinase-I (MMP-1) activity in human dermal fibroblast were investigated. Crude saponin contents of Korean red ginseng water extract (WE), Korean red ginseng ethanol extracts (EE) and Korean Red ginseng purified extracts (PE) were 72 mg/g, 107 mg/g and 220 mg/g, respectively. We incubated human fibroblast cell with Korean red ginseng component by addition of l ${\mu}g/ml$, 5 ${\mu}g/ml$, 10 ${\mu}g/ml$. Amount of collagen biosynthesis was 1.86 ng/ml in control sample and 2.85 ng/ml, 2.05 ng/ml and 2.58 ng/ml in retinoic acid, EE and PE respectively. Furthermore, $ginsenoside-Rg_1$ and $ginsenoside-Rb_1$ were shown 2.01 ng/ml and 3.07 ng/ml. MMP-l activities of EE, PE, $ginsenoside-Rg_1$ and $ginsenoside-Rb_1$ were decreased to 92%, 94%, 91% and 78% respectively as compared with control. Cell proliferation were showed 84-96% in the Korean red ginseng components. The antioxidative SOD activities of the Korean red ginseng components were showed 28-69%, however it was lower than that of Vitamin C. From this results, we conclude that Korean red ginseng have a anti-wrinkle effect and $ginsenoside-Rb_1$ may be considered as a more effective component.
In this study, the antioxidant effect of Chungkukjang supplementation against memory impairment and oxidative stress in scopolamine (2 mg/kg i.p)-injected mice was investigated. The experimental animals were divided into five groups and fed experimental diets for 12 weeks; normal diet group (C), scopolamine + normal diet group (S), scopolamine + 63.0% soybean Chungkukjang supplementation group (SS), scopolamine + 45.0% Yakkong Chungkukjang supplementation group (SY), and scopolamine + 50.0% black foods such as black rice, black sesame seeds, and sea tangle added Yakkong Chungkukjang group (SYB). For the results of food intake, body weight gain, and brain weights, levels of scopolamine-injected groups were lower than the levels of the control group. The reduced brain weight of the scopolamine-injected group (S) was regulated to control level by supplementation of three types Chungkukjang. In the oxidative stress indicator, nitric oxide and malondialdehyde levels in serum of scopolamine-injected mice were higher than those of other groups. However, supplementation of soybeans, Yakkong and black foods added Yakkong Chungkukjang was proven to regulate them. Antioxidant enzyme activities such as superoxide dismutase (SOD) and glutathione-S-transferase (GST) in serum showed no significant differences among the groups. The reduced levels of vitamin A and vitamin E in serum and brain tissue of scopolamine-injected mice were controlled by supplementation of three types of Chungkukjang. Total antioxidant capacity (TAC) of scopolamine-injected group was lower than those of other groups. However, TAC was significantly elevated by Chunggukjang supplementation. Therefore, antioxidative effects of soybeans, Yakkong, and black foods added Yakkong Chungkukjang supplementations against oxidative stress in scopolamine-injected in mice could expected.
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