• 생명과학회지
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• 제28권4호
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• pp.444-453
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• 2018

보리(Hordeum vulgare L.)는 Poaceae/Gramineae 과에 속하며 주위에 흔히 있는 곡물이지만 고대 이집트에서는 보리가 의약품으로 사용되어 왔으며 오랜 전부터 많은 나라에서 기능성 식품, 향료 및 맥주로 사용되는 중요한 곡물이다. 보리의 효능에는 항염증, 항암 및 항당뇨병에 효과가 있는 것으로 알려져 있다. 현재까지 보리에 관한 많은 연구가 진행되어왔지만 유산균 발효를 이용한 발효 보리에 대한 연구는 많이 진행되지 않았다. 본 연구에서는 유산균을 이용하여 발효 후 에탄올로 추출한 보리 씨앗의 효과에 대하여 조사 하였다. 이를 위해서 유산균으로 발효한 보리 씨앗과 발효하지 않은 보리의 총 폴리페놀 함량, 총 플라보노이드 함량, DPPH 라디칼 소거능, SOD 유사활성 및 타이로시나제 저해 활성을 분석하였다. 결과적으로 유산균으로 발효한 보리 씨앗이 발효하지 않은 보리 씨앗보다 더 효과적인 항산화 효과 및 미백 활성을 나타내는 것으로 보였다. 따라서 우리는 유산균으로 발효한 보리 씨앗이 건강 기능 식품 및 화장품 개발의 기초가 될 수 있음을 제안한다.

• 생명과학회지
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• 제22권5호
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• pp.627-633
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• 2012

본 연구에서는 해수로부터 난소화성 복합다당류를 분해하는 해양미생물 $Microbulbifer$ sp. AJ-3의 효소에 대한 기질 특이성을 분석하고 균주가 생산하는 효소를 이용하여 매생이의 효소분해산물을 조제하여 이에대한 생리활성을 분석하였다. 효소의 활성은 agar에 대한 상대적인 활성으로 나타내었는데 chitin 34.8%, fucoidan 36.8%로 비교적 낮은 활성을 보였고, starch 51.2%, agarose와 laminaran은 agar와 비슷한 수준인 115.6%, 103.1%의 활성을 나타내었다. 이 뿐만 아니라 alginic acid에 대해서는 agar의 2배가 넘는 239.3%의 활성을 나타내었다. 매생이 효소분해산물의 항산화능은 DPPH radical 소거능과 SOD 활성측정으로 분석하였는데 매생이 효소분해산물 2 mg/ml의 농도에서 DPPH 라디칼 소거능은 32%, SOD 활성은 93%로 나타났다. 매생이 효소분해산물의 아질산염 소거능은 pH 1.2에서 82%, pH 3.0에서 53%, pH 6.0에서 12%로 positive control인 비타민C와 유사한 활성을 보였다. 매생이 효소분해산물의 숙취해소 효능은 ADH 활성증진에 미치는 영향을 조사하였는데 효소분해산물 2 mg/ml 농도에서 30%의 증가된 알콜 분해능이 나타났다. 매생이 효소분해산물의 미백 효능에 대해서는 tyrosinase 저해능으로 분석하였으며 2 mg/ml에서 28%의 저해활성을 나타내었고 농도가 증가함에 따라 유의적으로 증가하는 경향을 나타내었다.

• 한국자원식물학회지
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• 제9권3호
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• pp.203-210
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• 1996

더덕 뿌리 내에 함유되어 있는 항산화효소를 생육환경에 따라 조사하기 위하여 경북 서벽지역의 1 2년생 밭더덕, 야생더덕 및 논에서 재배되는 1 2년생 더덕을 채취하여 사용하였고, 부위별 비교는 각 더덕 뿌리를 upper, middle, low로 나누어서 사용하였다. 이들을 O radical caseade인 SOD, POD, CAT activity를 조사하여 다음과 같은 결과를 얻었다. 1. SOD 활성은 밭재배조건의 경우 1년생보다는 2년생이, 논재배시는 1년생이 2년생보다는 높은 활성을 나타내었으며, 야생종의 비활성이 96069u/mg protein으로 가장 높은 활성을 나타내었다. 부위별로 비교해보면 재배종은 upper>middle>lower 순으로 논재배시는 low>upper>middle 순으로 야생종은 middle>lower, upper 순으로 생육환경에 따라 차이를 나타내었다. 2. POD 비활성(u/mg protein)은 년근수가 높을수록 활성은 증가하며, 야생지역이 68 u/mg protein로 가장 높은 활성을 나타내었다. 부위별로는 middle>lower>upper 순으로 활성이 나타났으며, 서벽야생의 middle 부분이 85 u/mg protein를 나타내었다. 3. CAT 활성은 POD 활성과는 달리 년근수가 낮을수록 높게 나타났으며 밭재배지와 야생지의 활성은 비슷하며 논재배지는 상대적으로 그 활성이 낮았다. 부위별로는 upper>low>middle 순으로 upper 부위가 상당히 높은 활성을 나타내며, 서벽재배 1년생의 upper가 53.59 u/mg protein으로 가장 높게 나타났다. 4. MS1D(MS+2.4-D 1ppm)에 배양한 배양세포의 항산화효소의 활성은 CAT는 1564, POD는 30, SOD는 22200 u/mg protein로 생체에 비해 낮은 활성을 나타내었다.

• 대한한방내과학회지
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• 제31권1호
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• pp.153-165
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• 2010

Objectives : The aims of this study were to investigate the cytoprotective, antioxidative and inflammation genes inhibitory effects of Patriniae Radix on the mouse LLC-$PK_1$ cells (renal epithelial cells). Methods : The cytoprotective effect of Patriniae Radix was evaluated by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. The antioxidative effect was measured in terms of generation amount of superoxide anion radical (${\cdot}{O_2}^-$) by 2',7'-dichlorodihydrofluorescein diacetate (DCFDA), nitric oxide (NO) by 4,5-diaminofluorescein (DAF-2), peroxynitrite ($ONOO^-$) by dihyldrorhodamine 123 (DHR 123) and prostaglandin $E_2$ ($PGE_2$) by $PGE_2$ immunoassay on $H_2O_2$-treated LLC-$PK_1$ cells. For measuring of inflammation genes inhibitory effects, western blot was performed to detect IKK-$\alpha$, phospho-$I{\kappa}B-\alpha$, NF-${\kappa}B$ (p50, p65), COX-2, iNOS, IL-$1{\beta}$ and VCAM-1 protein level in cytosol fractions from LLC-$PK_1$ cells. Results : Patriniae Radix extract reduced the $H_2O_2$-induced cell death and inhibited the amount of $H_2O_2$-induced ${\cdot}{O_2}^-$, NO, $ONOO^-$, $PGE_2$ generation dose-dependently on the mouse LLC-$PK_1$ cells in vitro. Also Patriniae Radix extract inhibited the expression of IKK-$\alpha$, phospho-$I{\kappa}B-\alpha$, COX-2, iNOS, IL-$1\beta$ and VCAM-1 genes dose-dependently by means of decreasing activation of NF-${\kappa}B$. Conclusions : According to above results, it was identified that Patriniae Radix had the cytoprotective, antioxidative and inflammation genes inhibitory effects. So it was suggested that Patriniae Radix would be effective to the treatment for the inflammatory process and inflammation-related diseases.

• Journal of Nutrition and Health
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• 제44권5호
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• pp.366-377
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• 2011

Glutathione S-transferase (GST) is a multigene family of phase II detoxifying enzymes that metabolize a wide range of exogenous and endogenous electrophilic compounds. GSTM1 and GSTT1 gene polymorphisms may account for inter-individual variability in coping with oxidative stress. We investigated the relationships between the level of lymphocyte DNA and antioxidative parameters and the effect on GST genotypes. GSTM1 and GSTT1 were characterized in 301 young healthy Korean adults and compared with oxidative stress parameters such as the level of lymphocyte DNA, plasma antioxidant vitamins, and erythrocyte antioxidant enzymes in smokers and non smokers. GST genotype, degree of DNA damage in lymphocytes, erythrocyte activities of superoxide dismutase, catalase, and glutathione peroxidase (GSH-Px), and plasma concentrations of total radical-trapping antioxidant potential (TRAP), vitamin C, ${\alpha}$- and ${\gamma}$-tocopherol, ${\alpha}$- and ${\beta}$-carotene, and cryptoxanthin were analyzed. Lymphocyte DNA damage assessed by the comet assay was higher in smokers than that in non-smokers, but the levels of plasma vitamin C, ${\beta}$-carotene, TRAP, erythrocyte catalase, and GSH-Px were lower than those of non-smokers (p < 0.05). Lymphocyte DNA damage was higher in subjects with the GSTM1- or GSTT1-present genotype than those with the GSTM1-present or GSTT1- genotype. No difference in erythrocyte antioxidant enzyme activities, plasma TRAP, or vitamin levels was observed in subjects with the GSTM1 or GSTT1 genotypes, except ${\beta}$-carotene. Significant negative correlations were observed between lymphocyte DNA damage and plasma levels of TRAP and erythrocyte activities of catalase and GSH-Px after adjusting for smoking pack-years. Negative correlations were observed between plasma vitamin C and lymphocyte DNA damage only in individuals with the GSTM1-present or GSTT1- genotype. The interesting finding was the significant positive correlations between lymphocyte DNA damage and plasma levels of ${\alpha}$-carotene, ${\beta}$-carotene, and cryptoxanthin. In conclusion, the GSTM1- and GSTT1-present genotypes as well as smoking aggravated antioxidant status through lymphocyte DNA damage. This finding confirms that GST polymorphisms could be important determinants of antioxidant status in young smoking and non-smoking adults. Consequently, the protective effect of supplemental antioxidants on DNA damage in individuals carrying the GSTM1- or GSTT1-present genotypes might show significantly higher values than expected.

• Preventive Nutrition and Food Science
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• 제5권4호
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• pp.213-218
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• 2000

The purpose of the study was to investigate the effects of dietary green tea catechin and vitamin E on the phospholipse {TEX}$A_{2}${/TEX} activity and th antioxidative defense system in streptozotocin (STZ)-induced diabetic rats. Sprague-Dawley male rats weighing 100$\pm$10 gm were randomly assigned to one normal and five STZ-induced diabetic groups. The diabetic groups were assigned either a catechin-free diet (DM group), 0.5% catechin diet (DM-0.5C group), 1% catechin diet (DM-1C group), vitamin E-free diet (DM-0E group), and 400 mg vitamin E per kg diet (DM-400E group) according to the levels of dietary catechin or vitamin E supplementation. The vitamin E levels of the normal, DM, DM-0.5C, and DM-1C groups were 40 mg per kg diet. Diabetes was experimentally induced by an intravenous injection of streptozotocin after 4 weeks of feeding the five experimental diets. The animals were sacrificed on the 6th day of he diabetic state. The body weight gains were lower in all five diabetic groups after the STZ injection. The platelet phospholipase {TEX}$A_{2}${/TEX}({TEX}$PLA_{2}${/TEX}) activity in the diabetic groups was higher than that in the normal group. However, the enzyme activity in the DM-0.5C, DM-1C, and DM-400E groups was lower than that in the DM and DM-0E groups. The cytochrome {TEX}$P_{450}${/TEX} and cytochrome {TEX}$b_{5}${/TEX} content and NADPH-cytochrome {TEX}$P_{450}${/TEX} reductase activity were about 50~110% higher in the DM and DM-0E groups than in the normal group, yet significantly reduced by either catechin or vitamin E supplementation. The superoxide dismutase (SOD) content in the liver did not differ significantly in any of the groups. However, the glutathione peroxidase (GSHpx) activity was generally lower in the diabetic groups, compared with the normal group, whereas that of the DM-0.5C, DM-1C, and DM-400E groups was significantly higher compared with that of the DM and DM-0E groups. The levels of thiobarbituric acid reactive substances (TBARS) in the liver tissue were 148% and 201% higher in the DM and DM-0E groups, respectively, compared with the normal group, however, these levels were reduced by either catechin or vitamin E supplementation (DM-0.5, DM-1C and DM-400E). Accordingly, the present results indicate that STZ-induced diabetic rats exhibited an imbalance between free radical generation and scavenger systems in the liver which led to the acceleration of lipid peroxidation. However, these abnormalities were reduced and the antioxidative defense system was restored by either dietary catechin or vitamin E supplementation. In conclusion, the effects of dietary catechin or vitamin E in streptozotocin-induced diabetic rats would appear to inhibit lipid peroxidation as an anti-oxidant by regulating the activity of {TEX}$PLA_{2}${/TEX}.

• 한국약용작물학회지
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• 제19권1호
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• pp.54-65
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• 2011

This study was performed to investigate the enhancement of cosmeceutical activities of Berberis koreana bark by different extraction processes. The extracts are WE (water extract at $100^{\circ}C$, control), USE (ultrasonification for 1 hours at $60^{\circ}C$ with water), HPE (high pressure for 5 minutes at $60^{\circ}C$ with water) and USE + HPE (ultrasonification process for 1 hours after high pressure for 5 minutes at $60^{\circ}C$ with water), respectively. The cytotoxicity of the extracts was in the range of 24.02~26.94% at 1.0 mg/ml concentration. The USE + HPE showed the lowest cytotoxicity. Compared to the WE, total phenolic and flavonoid contents in the USE + HPE increased to 121.5% and 154.2%. The USE + HPE showed the highest activity at 1.0 mg/ml concentration in 1,1-diphenyl-2-picryl-hydrazyl (DPPH) radical scavenging, inhibition activity of xanthine oxidase and superoxide dismutase (SOD)-like test, respectively. Tyrosinase inhibition of WE, USE, HPE and USE + HPE at 1.0 mg/ml concentration was measured as 17.72, 19.62, 22.83 and 24.16%, respectively. Hyaluronidase inhibition activities of the USE + HPE were higher than 20.8%~29.5% of the WE. Our results suggested that the extracts from ultrasonification process after high pressure extraction has relatively high cosmeceutical activities, and that the bark of Berberis koreana could be considered as a candidate of new functional cosmetic agents.

• 한국식품영양과학회지
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• 제36권6호
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• pp.683-688
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• 2007

본 실험은 성숙시기별 복분자딸기 과실부(미숙과 및 중간숙과, 완숙과)를 70% ethanol로 추출하여 항산화 원인 물질로 여겨지는 여러 유효 성분들을 조사한 후 천연 항산화제로서의 개발 가능성을 탐색하고자 하였다. 복분자딸기 100 g당 함유되어 있는 총 폴리페놀 화합물 함량은 완숙과가 4.50g으로 미숙과(2.84 g)와 중간숙과(1.55 g)에 비하여 약 2배정도 함량이 많았으며, DPPH 라디칼 소거능도 복분자딸기 과실이 성숙할수록 높은 활성을 나타냈다. SOD 유사활성도 복분자딸기가 중간숙과 80.05%, 완숙과 95.03%로 과실이 미성숙했던 시기보다 높은 활성을 가지는 것을 알 수 있었다. 100 g당 함유되어 있는 복분자딸기의 비타민 A 함량은 미숙과가 2.37 mg으로 중간숙과와 완숙과에 비하여 높았지만, 비타민 E는 완숙과가 0.9 mg으로 미숙과 0.2 mg에 비하여 높은 함량을 가진 것으로 나타났다. 복분자딸기의 비타민C 함량은 미숙과 28.55 mg, 중간숙과 23.06 mg, 완숙과 30.79 mg으로 과실의 성숙정도와 관계없이 전체적으로 높은 함량을 가지고 있었다. 플라보노이드 함량은 복분자딸기 완숙과가 $49{\mu}m/mg$로 중간숙과($16.4{\mu}m/mg$)와 미숙과($15.4{\mu}m/mg)$에 비하여 과실이 성숙할수록 함량이 크게 증가하였다. 또한 색소성분으로 여러 기능적 역할을 수행하는 안토시아닌은 미숙과일 때 7.89 mg%에 불과하였던 것이 완숙과일때 394.50 mg%로 함량이 크게 증가하였다.

• 동의생리병리학회지
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• 제23권3호
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• pp.685-694
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• 2009

This experimental study was designed to investigate the inhibitory effects of ethanol extract of modified Yukgunja-tang(mYGJT) on high-fat diet-induced obesity and hyperlipidemia in Sprague-Dawley rats, Animals were divided into normal, control, mYGJT(100 mg/kg and 200 mg/kg) treated groups. Obesity with hyperlipidemia was induced by high fat diet treatment for 6 weeks. mYGJT was given to the amimals by oral gavage for 4 weeks, starting at the high-fat diet regimen, The effect of mYGJT on the differentiation of 3T3 L1 adipocytes in vitro and serological paramamters for obesity and hyperlipidemia in vivo were evaluated, mYGJT significnatly inhibited the differentiation of 3T3 L1 adipocytes in a concentration dependent manner. mYGJT treatment siginficantly reduced body weight, abdominal and epididymal fat weight, and FER(Food Efficiency Ratio) compared with control group in a dose dependent manner. It also signficantly inhibited the levels of serum total lipid, triglyceride, phospholipid, total cholesterol, LDL, AI(Atherosclerosis Index) and returned the serum HDL to normal. Total lipids, triglycerides and cholesterols in the liver, as well as malondialdehyde(MDA) and hydroxy radical in the serum were significantly reduced. However, superoxide dismutase(SOD) activity was significantly increased in mYGJT treated group compared with control group. Finally, mYGJT treatment signficantly decreased the MDA and protein carbonyl concentrations of the hepatic homogenate but signficantly increased the activities of SOD, GSH-Px and Catalase. Taken together, these results suggest that mYGJT can be clinically useful in inhibiting high-fat diet-induced obesity and hyperlipidemia.

• 생약학회지
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• 제36권4호통권143호
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• pp.318-323
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• 2005

The leaves (KPL) of Kalopanax pictus (KP) are used as a vegetable or a functional food in Korean society. The stem bark (Kalopanacis Cortex, KPS) has been traditionally used to treat neurotic pain, rheumatoid arthritis and diabetic disease. This research was undertaken to demonstrate that the leaf extract of KP (KPL) has also the antinociceptive and antiinflammatory effects like the extract (KPS) of Kalopanacis Cortex and to compare the activity levels of several extracts obtained from KP. Antinociceptive and antiinflammatory effects were measured against the extracts described as followings; KPL-1 (the MeOH extract obtained from the leaf shoot of KP collected on May), KPL-2 (the MeOH extract from KP collected on June), KPL-3 (the MeOH ectract from KP with no thorns), KPS-1 (MeOH extract from KPS of a Korean habitat), KPS-2 (MeOH extract from KPS of a Chinese habitat). The antimociceptive test undertaken by acetic acid-induced writhing, hot plate-, and tail-flick methods using mice. The anti-inflammatory test was also undertaken by measuring the edema in the carrageenan-induced test. The order of activity potency in the antinociceptive and antiinflammatory assays was commonly shown as followings: KPL-3>KPS>1>KPS-2>KPL-1>KPL-2. This order was also observed in acetic acid-induced vascular permeability test. The antiinflammatory activity in carrageenan-induced assay was also observed as the following order: KPL-3>KPS- 1>PS-2>KPL-1>KPL-2. In addition, adjuvant-induced rats were used for a model to assess the oxidative stress. Treatment of the rat with the extracts reduced serum thiobarbituric acid-reactive substances (TBARS), hydroxy radical(OH) and superoxide dismutase(SOD) activity caused by FCA together together with the inhibition of hepatic TBARS level and lipofuscin content. The above finding suggests that the leaf extract has the antinociceptive and antinflammatory activity. It is also suggested that KPL-3 with more potent activity than other tested extracts could be developed for a new available biomaterial.