• Korean Journal of Food Science and Technology
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• v.44 no.4
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• pp.441-446
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• 2012

We investigated the chemical properties and antioxidant activities of sword bean (SWB) and compared it to soybean (SB) and black soybean (seoritae, BSB). The value of vitamin C, vitamin A, crude fat, and crude protein in SWB was 25.5, 0.37 mg/kg, 1.2, and 25.6%, respectively. The crude fat content (1.2%) in SWB was very low in comparison with those of SB (16.5%) and BSB (16.1%). In 16 free amino acids investigated, the histidine content (9.2%) was high in SWB, followed by SB (3.0%) and BSB (2.9%). Total flavonoid content of SWB (493.2 mg/100 g) was significantly higher than those of SB (71.8 mg/100 g) and BSB (97.5 mg/100 g). Total polyphenol content of SWB (1,152.0 mg/100 g) was not significantly different from that of SB (1,165.7 mg/100 g) but lower than that of BSB (1,298.6 mg/100 g). DPPH radical scavenging activity ($SC_{50}$, 50% scavenging concentration) of SWB was 13.1 ${\mu}g/mL$, whereas that of positive control (${\alpha}$-tocopherol) was 8.3 ${\mu}g/mL$.

• Korean Chemical Engineering Research
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• v.43 no.5
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• pp.641-645
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• 2005

Using aqueous solution of 60% ethanol, the isoflavones contained in the Soybean (Chungsun, Korea), Tawon (Suwon, Korea), Jackbean (Hongsung, Korea), Soybean (Jilin, China), Black Soybean (Jilin, China), Kidneybean (Jilin, China) and Soybean (California, U.S.A.) were extracted. In this work, the pretreatment step was composed of agitation extraction, filtration, concentration, ultracentrifuge, and membrane filtration. The analysis by $C_{18}$ column was performed, and the mobile phase applied was linearly changed with A/B of 85/15-65/35 vol% for 50 min (A water/acetic acid, 99.9/0.1 vol%, B acetonitrile/acetic acid, 99.9/0.1 vol%). Among the soybeans tested, the total amounts of the four isoflavones (daidzin, genistin, daidzein, and genistein) extracted by the soybeans from Korea, China and U.S.A. were 1.37, 1.60, and 2.25 mg/g, respectively. It was also found that the total amount of aglycone of daidzein and genistein from soybean (American California) was $144{\mu}g/g$, which was the largest for the soybeans experimented.

• Journal of Life Science
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• v.19 no.8
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• pp.1104-1111
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• 2009

This study was conducted to evaluate the effect of Sikhe made by medicinal herb on the functional level of liver. Water extract I (12.9% W/W) and II (25.8% W/W) were obtained from medicinal materials: Caragana Sinica, Glycyrrhiza uralensis, Atractylodes rhizoma alba, Atractylodes rhizoma alba, Crataegus pinnatifida, Paeonia lactiflora Pasll., Hordeum vulgare Linne, Oryza sativa Linne, ginger, peer and jujube. Experimental groups were divided into the control diet group (C), high fat diet group (HF), high fat diet treated with 5% extract I group (HFE I ) and high fat diet treated with 5% extract II group (HFE II). In sensory evaluation, overall quality scores associated with color, aroma, flavor and taste were significantly higher in water extract II than in water extract 1. After investigating functional and lipid levels of livers in rats, we found that the administration of water extract I or water extract II to the high fat diet group (HF) did not affect the gain of body weight but mildly reduced GOT or GPT activity in the high diet group. Moreover, administration of these medicinal herbal extracts significantly decreased the levels of total lipid, triglyceride and total cholesterol in the high fat diet group (HF). However, administration of these medicinal herbal extracts did not affect the level of phospholipid. In conclusion, as Sikhe made by medicinal herb slightly decreased the activity of GOT or GPT and amount of lipid in liver, prevention against high fat diet is thought to be important for liver protection.

• Applied Biological Chemistry
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• v.26 no.1
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• pp.8-18
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• 1983

The effects of fat-solvents was investigated on the yield. brown color intensity, UV absorbance patterns, reducing and antioxidant activities, and variation of fatty acid composition of the extracts from white and red ginseng. The yield and intensity of brown color of extracts were generally greater as the polarity of the solvent used became stronger. The intensity of the brown color of extract of red ginseng was greater than that of white ginseng. The orders of reducing and antioxidant activities of extracts of red ginseng was similar that of white ginseng, resulting in decreasing order of: ethanol>methanol>ethyl acetate, acetone>ether>chloroform>benzene, hexane. The ethanol, methanol, and ethyl acetate extracts of red ginseng showed stronger UV absorption than the corresponding extracts of white ginseng. The former also possessed stronger reducing and antioxidant activities than the latter. The composition of the major unsaturated fatty acids (linoleic, linolenic, and nervonic acid) in the ethanol and ethyl acetate extracts from both white and red ginseng did not change appreciably for 60 days at $45^{\circ}C$. In case of the hexane extracts which had shown the weakest reducing and antioxidant activities among the extracts, linolenic acid disappeared almost under the same condition.

• Annual Conference of KIPS
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• 2017.04a
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• pp.812-815
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• 2017

소셜 미디어를 이용하는 사용자의 수가 증가함에 따라 소셜 미디어에서 공유되고 있는 유해 정보(불법, 음란)의 심각성의 대두되고 있다. 기존의 단어 DB기반의 유해 사이트 판별 방법은 단어 DB의 갱신 문제점과 유해 정보와 낮은 연관성을 가진 단어가 DB에 저장되는 문제점을 가지고 있었다. 또한 링크 주소를 짧게 해주는 Short URL 서비스를 고려하지 않아 잘못된 웹 문서를 판별 대상으로 삼을 수 있는 문제점이 있다. 본 논문에서 제안하는 유해 사이트 판별 방법은 기 구축한 유해 단어 DB에서 유해 단어를 추출하고, 추출된 단어를 포함하는 소셜 미디어상의 유해 게시물을 조회한다. 유해 단어 DB를 구축하는 방법으로, 유해 게시물 조회시 내용에 포함되는 해시태그를 저장하는 방법을 사용하여 게시물 수집과 동시에 유해 단어 DB를 갱신시킨다. 또한 유해 게시물 내용에 있는 URL 링크의 웹 문서를 문자열로 치환하여, 해당 문자열내의 유해 단어 DB에 있는 유해 단어의 등장 빈도 수를 계산하고 이를 기준치와 비교하여 유해도를 판단한다. Short URL을 사용한 URL 링크인 경우 HTTP 응답 메시지의 헤더 부에 존재하는 실제 목적지 URL 주소를 가져와 유해도 검사를 실시한다.

• Korean Journal of Food Science and Technology
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• v.34 no.6
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• pp.941-946
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• 2002

Propolis was extracted using various concentrations of ethanol at different solvent-sample ratios. Volatile flavor components of propolis were detected by GC/MS, and the principal components were analysed. The content of total flavonoids (TF) in propolis extract increased 2 to 14% with increasing concentration of ethanol in the extraction solvent from 20 to 50%, but deceased slightly between of 60 and 70%. The 70% ethanol extract of propolis had the strongest antimicrobial activities to E. coli, L. plantarum and S. cerevisiae. Propolis ethanol extracts (2 to 14%) showed higher antioxidative activities when added oil to soybean oil during storage at $37^{\circ}C$.

• Food Science and Preservation
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• v.9 no.2
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• pp.212-220
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• 2002

Spray drying was used a means for microencapsulation of Aster scaber and Aster glehni. The optimum conditions of spray drying were found to be 210$^{\circ}C$ for the inlet temperature and 5 $m\ell$/min for the feeding rate. The color difference decreased by 12∼25 % far the herb extracts depending on storage temperatures. With an increase in storage temperature, color of the control changed considerably compared to microencapsulated powders. This is due to the fact that wall materials minimized effect of oxygen on the herb extracts. Microencapsulated powders in the amounts of 50 ppm and 250 ppm added to hydrogenated soybean oils led to lower acid values and conjugated diene values during 6 day storage. Compared to the control, the herb extracts displayed 16∼48% increase in antioxidation effect, while the microencapsulated powders exhibited 46∼88% increase. Extracts also showed lower conjugated dienoic acid contents than those of the control. Although antioxidation effect of the microencapsulated powders did not prevail on the significant level in the early stage of storage of oils tested, it became predominant after one week of storage as wall materials were gradually degraded under the high temperature thereby releasing core material from the microcapsule.

• Journal of the Korean Society of Food Science and Nutrition
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• v.23 no.6
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• pp.986-993
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• 1994

As a part of development of traditional foods, mugwort boogag and dry laver boogag were fried insoybean oil, and BHA or tocopherol-added soybean oil. They were wrapped up in opp vinyl film, and preserved at $4^{\circ}C(RH{\;}40{\pm}5%){\;}and{\;}25^{\circ}C(RH{\;}80{\pm}5%)$. During the storage of bobogags, acid value, peroxide value, and TBA value were investigated. Changes of sensory evaluation and texture profile were also examined. Boogags were manufactured by washing the raw materials. drying in the shade, mixing them with glutinous rice flour, and hot-air drying up it to 13 % of moisture contents after dryed it up to 80% of moisture contents on dry table for 23days, in order. These boogags were packaged to manufacture goods with dryed state or fried at $160^{\circ}C$ for 10 sec. Acid value, peroxide value, and TBA value of boogags which preserved at $4^{\circ}C$ generally appeared lower than at $25^{\circ}C$. As storage time goes by, moisture contents of bobogagas preserved at $25^{\circ}C$ increased and its quality were gradually deteriorated. When the boogags were fried in BHA(0.01%) and tocopherol (0.01%) added soybean oil, changes of acid value, peroxide value, TBA value were generally low. During the storage of bobogagas antioxidant effect of BHA was higher than that of tocopherol. Texture was inclined to decrease as storage time goes, by that of boogags preserved at $4^{\circ}C$ was a little more satisfactory. Hardness was also high.

• Journal of Life Science
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• v.20 no.3
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• pp.388-395
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• 2010

Cyclooxygenase (COX)-2 is generally known as an inducible enzyme, and it produces arachidonic acid to prostaglandin $E_2$ ($PGE_2$), which has been demonstrated to play a critical role in inflammation. In the present study, we investigated the effects of the extracts of fermented beans including soybean (FS), black agabean (FBA) and yellow agabean (FYA), on the expression of COXs and production of $PGE_2$ in U937 human promonocytic cells. Treatment of phorbol 12-myristate 13-acetate (PMA) significantly induced pro-inflammatory mediators such as COX-2 expression and $PGE_2$ production, whereas the levels of COX-1 remained unchanged. However, pre-treatment with FS, FBA and FYA significantly decreased PMA-induced COX-2 protein as well as mRNA, which is associated with inhibition of $PGE_2$ production. Moreover, FS, FBA and FYA markedly prevented the increase of nuclear translocation of nuclear factor kappa B (NF-${\kappa}B$) p65 by PMA. Our data indicate that the extracts of fermented beans exhibits anti-inflammatory properties by suppressing the transcription of pro-inflammatory cytokine genes through the NF-${\kappa}B$ signaling pathway.

• Korean Journal of Plant Resources
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• v.28 no.1
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• pp.9-15
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• 2015

Methicillin-resistant Staphylococcus aureus (MRSA) has been emerging worldwide as one of the most important hospital and community pathogens. At the same time, because of the difficulty in developing chemical synthetic drugs and because of their side-effects, scientists are making more efforts to search for new drugs from plant resources to combat clinical multidrug-resistant microbial infections. Cinnamomum camphora (C. camphora) is a plant of family Lauraceae, and grown Jeju island in South Korea that are used as a drug to treat neurasthenia, epilepsy, cystitis, pyelonephritis, digitalis, cancer, and diabetes mellitus in folk remedies. In this study, antibacterial activites of 80% ethanol extract of C. camphora leaves (CCE) were investigated in combination with antibiotics against clinical isolates of MRSA. The results showed that CCE was determined with MIC and MBC values ranging from 156 to 313 and 313 to $625{\mu}g/ml$, oxacillin from 128 to 256 and 128 to $512{\mu}g/ml$, ampicillin from 4 to 64 and 8 to $128{\mu}g/ml$. The combination of CCE with oxacillin or/and ampicillin were synergistic effect against MRSA 1, 6, 7, 8, 10, 11, 12, 13, and 15/ MRSA 1, 2, 6, and 7.