• 한국응용과학기술학회지
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• 제22권2호
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• pp.157-167
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• 2005

The extraction yield of Corni fructus was about 47.5% by extract apparatus. This study was done to investigate the antidiabetic and antioxidative effects of Corni fructus in Streptozotocin (STZ)-induced diabetic rats. The contents of serum glucose, total cholesterol and hepatic lipid peroxide, glutathione were significantly decreaed (p<0.05) in Corni fructus treated group compared to the those of STZ-control group, also content of triglyceride (TG), atherogenic index (AI) and activity of catalase were decreased, but not statistically significant. High density lipoprotein (HDL)-cholesterol and HDL-cholesterol/total cholesterol ratio (HTR) were increased in Corni fructus treated group compared to the those of STZ-control group. The activities of glutathione-S-transferase (GST) and superoxide dismutase (SOD) were significantly decreaed (p<0.05) in Corni fructus treated group compared to the those of STZ-control group. The content of hepatic glycogen and activities of glucose-phosphate dehydrogenase (G-6 PDH), glucokin-ase were significantly increased, but activity of glucose-Grphosphatase (G-6 Pase)was decreased in Corni fructus treated group compared to the those of STZ-control group. Therefore, these results indicated that ethanol extract of Corni fructus would have antidiabetic and antioxidative effects in STZ-induced diabetic rats.

• Preventive Nutrition and Food Science
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• 제14권1호
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• pp.54-59
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• 2009

To improve the functional and organoleptic properties of the fermented soymilk with Bacillus subtilis 2829PNU015 which has chungkukjang like flavor, functional materials from the edible plant extracts with well-known health promoting effects were examined by fibrinolytic activity and sensory evaluation. Among five samples such as Corni fructus, garlic, purple sweet potato, aged garlic, and pumpanini were tested, Corni fructus showed the highest fibrinolytic activity. The appearance and taste of the fermented soymilk (FS) was varied to the amount of Corni fructus added, and the highest acceptability of FS was observed from FS containing 1% Corni fructus extracts ($10^{\circ}$Brix) in it. Best way of applying Corni fructus to the fermented soymilk (FFS) was found to be incubating the mixture of soymilk and Corni fructus with Bacillus subtilis. FFS demonstrated dose dependent radical scavenging activities and these activities were found to be higher than those of FS at designated concentration.

• 한국식품영양과학회지
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• 제35권7호
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• pp.891-896
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• 2006

산수유의 영양성분과 냉면육수 제조시 항균효과를 조사하여 식품소재로써 산수유의 이용성을 증대시키는 기초자료로 삼고자하였다. 산수유의 일반성분은 건량기준으로 탄화물 87.7%, 조단백질 3.2%, 조지방 4.5%, 회분 4.6%이었다. 산수유의 총아미노산 함량은 2,470 mg%로 나타났다. 아미노산 조성으로는 산성아미노산인 aspartic acid가 523 mg%, glutamic acid가 347mg%로 높게 나타났다. 지방산은 총 포화지방산 함량 30.8%, 총 불포화지방산 함량 69.2%로 다가불포화지방산의 함량이 높게 나타났다. 지방산 조성을 살펴보면 linoleic acid가 33.3%로 가장 높았고, 그 다음으로는 palmitic acid (25.1%), linolenic acid(21.6%), oleic acid(13.2%) 순이었다. 무기질 중 칼륨함량이 건물기준으로 2,067.5mg%로 가장 높았고 그 다음으로는 Ca 372.9 mg%, Mg 98.4 mg% 순이었다. 산수유의 유기산 함량은 gallic acid가 19,478 mg%로 가장 그 함량이 높았으며, 그 다음으로는 succinic acid(18,167mg%) 순이었다. 산수유 3 g을 첨가하여 제조한 냉면육수는 살균효과를 향상시켜줄 뿐 아니라 저장기간에도 균의 생육을 충분히 억제시켰다. 관능검사 결과는 산수유 1.5 g을 첨가하여 만든 육수가 색깔, 냄새, 맛 및 전체 기호도에서 좋은 영향을 미치는 것으로 나타났다.

• 한국식품저장유통학회지
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• 제6권1호
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• pp.99-103
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• 1999

Corni Fructus extracts were investigated for antimicrobial and antioxidative activities. In the methanol, ethanol, water extracts from Corni Fructus, antimicrobial activity of the water extract was stronger than the others. Antimicrobial activities were strong against microorganisms such as Streptococcus mutans, Bacillus subtilis, Pseudomonas aeruginosa, Salmonella typhimurium, Escherichia coli and Escherichia coli O-157, the activity against Escherichia coli O-157 was the strongest of all the microorganisms. The growth of all the microorganisms were completely inhibited to 48 hours in the 150${\mu}\ell$ per $m\ell$ of culture media. the shape of E. coli O-157 treated with Corni Fructus water extract was expended and its cellular surface was collapsed severely. When Corni Fructus water extract of 200${\mu}\ell$ was treated, hydrogen donating effect was more than 90%, and antioxidative activity using linoleic acid was similar to 0.1% BHT at the concentration of 50${\mu}\ell$.

• 한국생물공학회:학술대회논문집
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• 한국생물공학회 2003년도 생물공학의 동향(XIII)
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• pp.294-299
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• 2003

The growth of Bacteroides fragilis was inhibited by combination of natural products bearing antioxidative capacity and combined two, three and four kinds of them. Bacteroides fragilis was controlled by Paeonia Japonica, Corni Fructus, Theae Folium, Coptidis Rhizoma alone, and two mixed combinations of Paeonia japonica and Scutellaria Baicalensis George, Scutellaria Baicalensis George and Schizandrae Fructus, Schizandrae Fructus and Theae Folium, Schizandrae Fructus and Corni Fructus, Schizandrae Fructus and Crataegi Fructus, Paeonia japonica and Schizandrae Fructus, and three mixed combinations of Paeonia Japonica and Scutellaria Baicalensis George and Schizandrae Fructus, Paeonia Japonica and Scutellaria Baicalensis George and Crataegi Fructus, Paeonia Japonica and Scutellaria Baicalensis George and Corni Fructus, and four mixed combinations of Scutellaria Baicalensis George and Crataegi Fructus and Corni Fructus and Schizandrae Fructus, Scutellaria Baicalensis George and Crataegi Fructus and Corni Fructus and Theae Folium. As these combinations of natural products will activate some parts of body, theymay be applied to pharmaceutical applications, functional foods, antiaging tea, alsoexpected to control bacterial growth for fermentative beverage bearing multifunction.

• Toxicological Research
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• 제25권2호
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• pp.93-99
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• 2009

This study investigated the effect of Corni Fructus (Cornus officinalis Sieb. et Zucc.) extract on blood glucose and insulin resistance in db/db mice. Seven weeks old male mice were divided into normal control group (NC), diabetic control group (DC) and Corni Fructus treated diabetic group (DCF). Over an 8-week experimental period, Corni Fructus extract was administered orally at 500 mg/kg BW/day. Corni Fructus inhibited increase in blood glucose level during the OGTT (oral glucose tolerance test). At 8 weeks after beginning of the experiment, blood glucose level in the DCF group was significantly lower (p<0.01) than the DC group. Final fasting serum glucose and triglyceride in the DCF group were significantly lower (p<0.05) than the DC group by 32% and 41% respectively. Serum insulin did not differ among the NC, DC and DCF groups. The mRNA expression of adiponectin, GLUT 4 and PPAR-$\gamma$ in adipose tissue in the DC group were significantly lower than the NC group and they were higher in the DCF group than the DC group by 76%, 130% (p<0.05) and 43%, respectively. In conclusion, these results indicated that Corni Fructus would have antidiabetic effects via improving insulin resistance in favor of higher glucose utilization and reducing blood glucose level in db/db mice.

• 생약학회지
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• 제48권3호
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• pp.208-212
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• 2017

In this study, analysis of active compounds that are believed to be highly relevant to antioxidant activity was carried out on the methanol extract and its solvent fractions of Corni fructus. The DPPH radical scavenging activity for the comparison of antioxidant activity was higher in order of aqueous fraction > methanol extract > ethyl acetate fraction > n-hexane fraction. It is similar to the order of total polyphenol contents in the samples. As a result of LC-MS analysis, phenolic acid compounds such as caffeic acid, gallic acid and chlorogenic acid and lognin, which is known as a representative active ingredient of Corni fructus, were identified as active compounds. And the antioxidative activity and the total polyphenol content of the extracts and solvent fractions were found to be related to the contents of the compounds. Particularly, it was confirmed that phenolic acid such as caffeic acid contributes to the antioxidative activity of the aqueous fraction of Corni fructus methanol extract.

• Toxicological Research
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• 제27권1호
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• pp.37-41
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• 2011

This study investigated the antioxidative action of Corni Fructus aqueous extract on kidneys of diabetic mice. The electron donating abilities of Corni Fructus aqueous extract and its antioxidant activities (XO, SOD, CAT, GST, eNOS) in kidneys of C57BL/6 or db/db mice were evaluated. For in vivo study, seven week-old male mice were divided into normal control group (NC, C57BL/6 mice), diabetic control group (DC, db/db mice) and Corni Fructus (500 mg/kg/day for 8 weeks) treated diabetic group (DCF, db/db mice). The electron donating abilities of Corni Fructus aqueous extract exhibited 7%, 24.4%, and 42.7% at concentrations of 100, 500, and $1000\;{\mu}g/ml$, respectively. The activity of XO in the DCF group was significantly lower than the DC group by 35% (p < 0.05). The SOD activity was significantly higher in the DCF group than the DC group by 26% (p < 0.05). The activities of CAT and GST were lowered in the DCF group than the DC group by 26% (p < 0.05) and 7.6%, respectively. The mRNA expression of eNOS in kidneys was lower in the DCF group than the DC group by 24%. These results indicate that Corni Fructus reduced oxidation stress as evidenced by the restoration of the enzymatic antioxidative defense system in renal tissues of db/db mice. It is suggested that these antioxidative actions of Corni Fructus on renal tissues in db/db mice could contribute to its renoprotective effects on diabetic nephropathy.

• 대한의생명과학회지
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• 제15권2호
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• pp.119-126
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• 2009

This study investigated the effect of Corni Fructus(Cornus officinalis Sieb. et Zucc.) extract on hyperglycemia and renal function in streptozotocin-induced diabetic rats. Male Sprague-Dawley rats were divided into three groups including normal control(NC), diabetic control(DC), and diabetic treatment with Corni Fructus(DCF). Over a 4-week experimental period, Corni Fructus aqueous extract was administered orally at 500 mg/kg BW/day. The final fasting serum glucose, serum urea nitrogen, triglyceride, urinary total protein level, and relative weight of the left kidney in the DCF group were significantly lower than the DC group. Serum insulin level in the DCF group was higher than the DC group by 23%. The renal xanthine oxidase and superoxide dismutase activities in the DCF group were significantly lower than the DC group. The renal catalase activity in the DCF group was significantly higher than the DC group. In conclusion, these results indicated that Corni Fructus can reduce glucose level and prevent or retard the development of diabetic complication via its antioxidative effect and protecting against diabetic renal damage in streptozotocin-induced diabetic rats.

• 한국식품조리과학회지
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• 제30권6호
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• pp.726-734
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• 2014

The purpose of this study was to examine the qualities of muffins made with 0, 2, 4, 6, and 8% Corni fructus powder. The height of the muffins did not significantly differ between the sample groups; however, the weight of the control group was higher than that of the test samples containing Corni fructus powder. The volume and specific loaf volume of muffins decreased with the addition of Corni fructus powder. The baking loss of the samples containing Corni fructus powder was also higher than that of the control group. The moisture content of the control group was 19.88%, whereas that of the test samples ranged from 16.72~21.01%. The pH of batters and muffins of the test samples were lower than those of the control group. For DPPH radical scavenging activity, the control group measured 11.46%, whereas the test samples ranged from 22.63~53.33%. The L and b values of the crust and crumbs decreased, but the a value was increased significantly by the addition of Corni fructus powder. Examination of the textural properties revealed the hardness, gumminess and brittleness of muffins containing Corni fructus powder were significantly higher than those of the control group. In term of overall preference, the sensory evaluation scores of groups containing 2% and 4% of Corni fructus powder did not show significant differences compared to the control group. Based on the above results, using Corni fructus powder at less than 4% would be appropriate for making muffins.