This study was conducted to investigate the effect of manufacturing temperature on curcuminoid contents and the antioxidant activity of turmeric (Curcuma aromatica Salab.) powder-enhanced nurungji. Two different processes employed turmeric powder (2%): AR (added after rice cooked) and BR (added before rice cooked). AR and BR nurungji samples were prepared by heating cooked rice at 180oC, 200oC, and 220oC for 3 minutes. As a result of the HPLC analysis, the contents of curcumin, demethoxycurcumin, and bisdemethoxycurcumin decreased as the heating temperature increased. Moreover, AR samples showed higher curcuminoids than BR samples. The total polyphenol contents, DPPH, and ABTS radical scavenging ability proportionally increased with the increase of the manufacturing temperature. On the other hand, flavonoid contents were decreased with increasing temperature. These results suggest that the preparation of turmeric powder-enhanced nurungji by AR process at 200oC is preferable to preserving curcuminoid contents and antioxidative activity.

본 연구에서는 인터넷 쇼핑몰에서 유통되는 컬러푸드 중 블랙푸드 76건을 대상으로 폴리페놀 17종 및 안토시아닌 5종을 동일한 전처리 방법으로 HPLC, HPLC-MS/MS 분석하여 정량 및 정성시험을 실시하였다. 분석대상 폴리페 놀은 gallic acid, protocatechuic acid, chlorogenic acid, vanillic acid, caffeic acid, syringic acid, p-coumaric acid, t-ferulic acid, t-cinnamic acid 등 9종의 phenolic acid와 (+)catechin, syringic aldehyde, rutin, epicatechin gallate, naringin, luteolin, naringenin, kaempferol 등 8종의 flavonoid 로 총 17종의 폴리페놀을 동시분석 하였고, 안토시아닌은 delphinidin-3-glucoside, delphinidin-3-rutinoside, cyanidin- 3-galactoside, cyanidin-3-glucoside, cyanidin-3-arabinoside 등 5종을 동시분석 하였다. 폴리페놀 17종의 총 함량은 서 리태 255.1 ± 7.5 μg/g, 서목태 275.8 ± 5.3 μg/g, 흑미 78.5 ± 4.6 μg/g, 흑임자 75.8 ± 3.2 μg/g, 블루베리 143.3 ± 5.5 μg/ g, 아로니아 195.2 ± 4.9 μg/g, 블랙커런트 131.6 ± 3.2 μg/g 로 나타나 서목태 > 서리태 > 아로니아 > 블루베리 > 블랙 커런트 > 흑미 > 흑임자 순으로 높은 함량을 나타냈다. 안 토시아닌 5종의 총 함량은 서리태 82.4 ± 17.2 μg/g, 서목 태 95.2 ± 6.1 μg/g, 흑미 74.1 ± 9.7 μg/g, 흑임자 불검출, 블 루베리 110.8 ± 1.9 μg/g, 아로니아 218.9 ± 6.1 μg/g, 블랙커 런트 209.7 ± 4.0 μg/g로 나타나 아로니아 > 블랙커런트 >블 루베리 > 서목태 > 서리태 > 흑미 순으로 높은 함량을 나타 났다. 본 실험결과 폴리페놀은 서목태, 안토시아닌은 아로니아가 가장 높은 함량을 나타내었으며 향후 유색 농산물 을 활용한 기능식품 개발이 필요한 것으로 판단된다.

In the present study, four edible mushrooms, Lentinula edodes, Agaricus bisporus, Pleurotus ostreatus, and Pleurotus eryngii, were air-dried or freeze-dried for a certain period of time. After finely ground the materials, their beta-glucan contents were measured. Beta-glucan is a polysaccharide of plant and fungal cell wall and also a dietary fiber. It has an effect on stimulating immune cells and decreasing cholesterol. In the mushroom materials used in this study, beta-glucan contents were measured as 11-16%. Among them, P. ostreatus represented the highest contents, 16%. The authors also examined the contents of polyphenol, which is a phenolic compound known to have antioxidant activity. The polyphenol concentrations of the selected mushrooms were measured in 1 mg/ml of each sample prepared by hot-air drying and freeze-drying, respectively. As a result, 28-32 mg/ml of polyphenol was measured in hot air dried samples of P. ostreatus. In P. eryngii, air-dried samples had 6 mg/ml more polyphenols than freeze-dried ones, while in P. ostreatus, the former had 10 mg/ml more than the latter, indicating that the polyphenol contents in mushrooms can be changed by the different drying treatments. In other words, for P. eryngii and P. ostreatus, hot-air drying is more suitable processing method than freeze-drying in the light of physiological activity.

사우디아라비아 북부지역에서 수집된 홍화 총 100자원에 대 한 총폴리페놀 함량 및 항산화 활성을 평가하여 항산화활성이 높은 홍화자원을 선발하고자 연구를 수행하였으며 그 결과는 다음과 같다. 1. 총 100자원의 홍화유전자원에 대한 총폴리페놀 함량은 14.2 ± 0.41 μg GAE mg−1dw에서 81.6 ± 1.56μg GAEmg−1dw 까지 분포하였다. DPPH 라디컬 소거능은 1.6 ± 0.07 μg ASC mg−1 dw에서 14.1 ± 0.23 μg ASCmg−1 dw까지 활성을 나 타냈다. ABTS 활성은 34.5 ± 0.70 μg Trolox mg−1 dw에서 156.5 ± 3.06 μg Trolox mg−1 dw까지 평가되었다. 항산화활성 을 측정한 DPPH와 ABTS 활성간에는 상당한 유의성(r = 0.954**)을 보였다. 2. 홍화자원 100자원의 총폴리페놀 함량 및 항산화활성 결 과값에 대한 상호관계를 분석하여 활성이 높은 그룹(Group1)을 얻었다. Group1에 포함된 8개의 홍화자원은 나머지 그룹에 속한 자원들에 비해 항산화활성이 높았으며, 이중 K185841, K185879, K185863은 Group1내의 다른 자원들보다도 항산화 활성이 상당히 높아 홍화육종이나 기능성물질연구에 좋은 소 재가 될 것으로 사료된다.

느타리버섯은 한국사람들에게 인기있는 버섯이며 새송 이버섯, 팽이버섯과 더불어 대부분 많이 재배되어지는 버 섯이다. 느타리버섯의 항산화 효능과 폴리페놀 함량을 비 교 분석하였다. 항산화 효능을 분석한 결과 열수추출에서 는 ASI 2099가 가장 높게 나타났으며, 주정과 메탄올 추 출물에서는 ASI 2122가 가장 높게 나타났다. 폴리페놀 성분은 대부분 7~10 mg/g 이었으며, 추출용매별 함량차 이는 크지 않았다.

The antioxidant, xanthine oxidase, tyrosinase inhibitory activities and polyphenol contents of the fruiting bodies of Pleurotus cornucopae extracted with acetone, hot water and methanol (hereinafter referred to Fr. Ace, Fr. HW and Fr. MeOH). The antioxidant activities in the Fr. Ace, Fr. HW and Fr. MeOH were 93.23%, 89.55% and 92.58%, respectively at the concentration of 2.0 mg/ml. Xanthine oxidase inhibition activity in the Fr. Ace, Fr. HW and Fr. MeOH were 45.84%, 46.50% and 45.60%, respectively at the concentration of 5 mg/ml. Tyrosinase inhibition activity in the Fr. Ace, Fr. HW and Fr. MeOH were 52.11%, 50.12% and 55.81%, respectively at the concentration of 1.0 mg/ml. Total polyphenol contents in the Fr. Ace, Fr. HW and Fr. MeOH were 18.99 mgGAEs/ g, 16.73 mgGAEs/g and 18.66 mgGAEs/g. These experimental results suggested that fruiting bodies of P. cornucopae contained good physio-chemical substances for promoting human health.

Methanol and hot water extracts of Daedalea bien-nis were investigated for its antioxidant activity, poly- phenol content and tyrosinase inhibitory effect. The antioxidant activity was evaluated using 1, 1-diphenyl -2-picrylhydrazyl (DPPH) scavenging assay. The antioxidant activities of hot water and 80% methanol extracts of Daedalea biennis fruiting body were 52.06%. and 92.62% at 1.5mg/ml concentration. Total polyphenol content of hot water and 80% methanol extracts were 12.26㎍ GAEs/mg and 13.69㎍ GAEs/mg. Tyrosinase inhibitory activity of water extract was 19.70% while 80% methanol extract was 15.75% at 1mg/ml concentration.

Methanol and hot water extracts of Suillus granulatus were investigated for its antioxidant activity, polyphenol content and tyrosinase inhibitory effect. The antioxidant activity was evaluated using 1, 1- dipheny l-2-picrylhydrazyl (DPPH) scavenging assay. The antioxidant activities of hot water and 80% methanol extracts of Suillus granulatus fruiting body were 51.49%. and 90.58% at 1.5mg/ml concentration. Total polyphenol content of hot water and 80% methanol extracts were 33.21㎍ GAEs/mg and 27.97㎍ GAEs/mg. Tyrosinase inhibitory activity of water extract was 7.8% while 80% methanol extract was 20.88% at 1mg/ml concentration.

Background : Invitro antioxidant activity, polyphenol and flavonoid aglycone contents in black and green tea products of balloon flower leaves were investigated to provide valuable information for the further development and utilization of resources of Platycodon grandiflorum. Methods and Results : Flavonoid aglycone contents were investigated using HPLC (SHIMADZU, Japan) with a hypersil ODS column (125 mm × 4 mm, 5-μm particle, HP). DPPH and ABTS radical scavenging activities were measured by method of Lee & Lee (2004) with slight modification. Antioxidant activity, polyphenol and flavonoid contents in green tea were significantly higher than these in black tea. PC analysis indicated that first principal components explained 79.9% of the total variability for five traits investigated. PC2 explained 19.7% of the variation. Conclusion : It can be concluded from these results that these characteristics can reveal the active compound variation of black and green tea products of balloon flower leaves. These results provide scientific evidence for the utilization of balloon flower leaves.

The purpose of this study was to determine the content of phenolics and various anthocyanin compounds, and antioxidant and anticancer activities of the extracts from pomergranates, which were produced in two different regions including Goheung, Korea and California, USA. These pomergrantes were divided into juice, pericarp, and seed parts and each part was extracted with 95% methanol. Content of total phenolics [mg chlorogenic acid equivalents/kg DW] was highest in pericarp, followed by juice and seeds from pomergrantes in both regions. The anthocyanins identified in pomegranate fruit were cyanidin-3,5-diglucoside chloride (Cy3,5G), cyanidin-3-O-glucoside chloride (Cy3G), delphini din-3,5-di-O-glucoside chloride (Dp3,5G), delphinidin-3-O-glucoside chloride (Dp3G), pelargonidin- 3,5-di-glucoside chloride (Pg3,5G), and pelargonidin-3-glucoside chloride (Pg3G). Among these, cyanidin-3, 5-diglucoside chloride (Cy3,5G) was the major anthocyanin in California pomegranate fruit juice and Goheung pomegranate fruit pericarp. DPPH (1,1-diphenyl-2-picryl hydrazyl radical) free radical scavenging activity was dose-dependently increased, and was higher in pericarp part than juice or seed parts from pomergrantes in both regions. By MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide) assay, pericarp extracts from pomergrantes in both regions showed the highest anticancer activity, which was higher on Calu-6 for human pulmonary carcinoma than SNU-601 for human gastric carcinoma. Correlation between polyphenols and anticancer activity on Calu-6 was determined to be in the range of r2=0.8904 to 0.9706.

This study was conducted to investigate the extraction characteristics including total polyphenol compound content (TPC) and the antioxidative effect of Rumex crispus root extract on commercial corn oil. Extraction yield was increased with extraction temperature but decreased with extraction ratio. No significant differences in aromatics content were found among the extracts prepared with various extraction conditions; extraction ratio, extraction temperature, extraction pH and composition of extractant. Total flavonoid content of the extract was increased with extraction temperature and extraction pH, and highest value of it was found when extractant composition of ethanol in water was 75%. Total polyphenol compound content (TPC) of the extract with 10 fold extraction ratio showed the highest value, but no significant difference in TPC was found with extraction temperature. Reducing power and DPPH (α,α-diphenyl-β-picrylhydrazyl) radical scavenging ability (RSA) of the extract in spectrophotometric absorbance were decreased with extraction ratio but increased with extraction temperature and showed 63.1%~98.4% and 67.6%~86.7% of those of ascorbic acid in reducing power and DPPH RSA, respectively. The antioxidative effects of the extract on corn oil were 84.8~93.0% of that of commercial butylated hydroxytoluene, the antioxidant index value was highest when the ethanol composition to water in extractant was equal ratio.

신안산 손바닥선인장 butanol 추출물과 methanol 추출물이 10균주 중 세균에 대하여 항균활성이 강하였으나, 젖산균 및 효모에 대해서는 항균활성이 나타나지 않았다. 부위별 항균활성은 줄기 추출물이 열매 추출물 보다 강한 활성을 나타내었다. 손바닥선인장의 butanol 추출물의 최소저해 농도는 세균은 100 mg/mL 이었고, 효모와 젖산균은 500 mg/mL이었다. 손바닥선인장 추출물의 열 안정성은 에서 30분 가열시에도 항균활성이 거의

Changes in the contents of total phenolic compounds in as Agrimonia pilosa well as their antioxidant capacity according to the havest time and positions were examined. The contents of the total phenolic compounds were determined by extraction with MeOH. Among havest times harvestry in July showed highest contents of the total phenolic compounds and harvestry in May showed lowest contents of the phenolic compounds. Among the 4 positions (root, branch, leaf, flower) of Agrimonia pilosa the root contained highest contents of the phenolic compounds. The antioxidant capacities of Agrimonia pilosa were increased roughly with increasing level of contents of phenolic compounds according to positions.

백지의 유용성분을 추출하기 위한 최적의 추출조건을 알아보고자 MAE 추출장치를 이용하여 물과 에탄올을 용매로 에너지 강도와 추출시간을 달리하여 백지 추출물의 수율, 총 폴리페놀의 함량 및 전자공여능과 SOD 유사활성능을 측정하였다. 추출수율은 물을 용매로 30분간 추출한 240 W 추출물이 11.77mg%이었으며, 120W 추출물에서도 11.42 mg%의 수율을 나타내었다. 총 폴리페놀은 240W 30분간 추출된 에탄을 추출물이 32.36mg/g

This study purposed to look for its uses by analyzing useful substances in kenaf (Hibiscus cannabin us L.) leaves based on the total polyphenol and flavonoid contents in the leaves, DPPH radical scavenging activity of leaf extract, SOD activity, etc. by different growth stage and variety. According to the results of experiment, the total polyphenol content was highest in Everglade-41 (27.9 mg/g dw.), the total flavonoid content was highest in Tainung-2 (42.3 mg/g dw.), and SOD activity was highest in Dowling (96.1 %). However, DPPH radical scavenging activity was similar among the three varieties.

싸리(L. bicolor)의 생리활성물질 탐색을 위한 연구의 일환으로 비타민 C와 총 폴리페놀의 함량 그리고 각 추출물의 xanthine oxidase 및 tyrosinase 저해 활성을 측정하였다. 싸리의 비타민 C 함량은 이었으며, 싸리 생체의 총 폴리페놀은 을 함유하였으며, 싸리 추출물의 폴리페놀은 RE에서 154.95 mg/g으로 가장 높은 폴리페놀 함량을 나타내었다. 각 추출물의 농도에 따른 xanthine oxidase 저해 활성을 측