• Food Science and Biotechnology
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• v.17 no.6
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• pp.1235-1239
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• 2008

To study the health promoting effects of medicinal plants, 30 medicinal plants commonly available in Korea have been evaluated for their antioxidant compounds and antioxidant and antiproliferative activities. Total polyphenolics and flavonoids in the methanolic extracts were measured by spectrophotometric methods and 1,1-diphenyl-2-picrylhydrazyl (DPPH) and 2,2-azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid (ABTS) radical scavenging activities and chelating effects have been determined for antioxidant activities. Moreover, the effects of medicinal plants on cell proliferation of intestinal (Caco-2) and pituitary (GH3) tumor cells were investigated using thiazolyl blue terazolium bromide (MIT) assay. The methanolic extracts of Pueraria thunbergiana and Artemisiae asiatria contained the highest total polyphenolic and flavonoid contents, respectively. P. thunbergiana exhibited the highest antioxidant activities. A. asiatria showed the strongest antiproliferative activity against Caco-2 and Ponciruc trifoliata Rafin and Lophathrum gracile Bronghiart exhibited the highest activities against GH3. Although there was positive correlation between ABTS radical scavenging activity and polyphenolic contents ($R^2=8189$), no relationship was found between antiproliferative and antioxidant activities.

• Food Science and Preservation
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• v.6 no.1
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• pp.110-114
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• 1999

In order to study the natural preservation of food, sixteen kinds of medicinal plants were extracted by 80% methanol and then antimicrobial activity of the extracts was investigated against various kinds of microorganisms. The extracts of medicinal plants showed good effects of antimicrobial activity against bacteria except Bacillus cereus, Escherichia coli O-157. Especially, the extracts of Artemisia annua, Aster scaber, Solidago virganrea shower good inhibitory effects on the growth of bacteria to the cooling preservation foods, and Artemisia annua was decreased of the TMA(Trimethylamine) test. the result thus indicate that Artemisia annua, Aster scaber, Solidago fischeri extract inhibitory effects on cooling preservation foods, so that it may be potential as a natural preservatives.

• Food Industry And Nutrition
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• v.18 no.2
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• pp.1-6
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• 2013

• Preventive Nutrition and Food Science
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• v.8 no.3
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• pp.289-293
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• 2003

Antioxidant activity and nicotine degradation activity (NDA) of 21 medicinal herbs were determined by using a 1,1-diphenol-2-picrylhydrazyl (DPPH) method and a PLC/PRF5 human liver cell line method, respectively, to develop an anti-smoking aid. The highest and lowest antioxidant activities represented by $IC_{50}$/ value were 30 $\mu$g/mL of Eugenia caryophyllus and 3,270 $\mu$g/mL of Panax ginseng C. A. Meyer, respectively. Antioxidant activity of Eugenia caryophyllus was equal to 38.0$\pm$1.2 mg VCEAC(vitamin C equivalent antioxidant capacity)/ g herb. The highest and lowest NDA values were 1.81 of Astrgalus membranaceus Bunge and 1.01 of Raphani seed and Lespedeza tomentosa Sieb, respectively. Eleven medicinal herbs with high antioxidant activity and/or NDA were selected to make an herbal tea. The herbal tea had high antioxidant activity (50 $\mu$g/mL $IC_{50}$/ and 22.4$\pm$1.4 mgVCEAC/g) and NDA (1.243). The medicinal herb tea could help smokers quitting smoking by degrading and exhausting nicotine accumulated in body and removing reactive oxygen species.

• Korean Journal of Food Science and Technology
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• v.33 no.5
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• pp.514-520
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• 2001

Naturally occurring sulfur dioxide in medicinal herbs(crude drug materials) and its origin was investigated. Sulfur dioxide content in 28 kinds (101 samples) of medicinal herbs was studied by two different methods, Monnier-Williams and acid-distillation ion chromatography. Generally, less than 5 ppm of sulfur dioxide was found from the tested herbs. In some herbs, Monnier-Williams method showed higher level of sulfur dioxide than acid-distillation ion chromatography probably due to the presence of volatile organic acid presence in herbs. Naturally occurring sulfur dioxide measured in medicinal herbs may be derived from sulfur compounds of medicinal herbs.

• The Korean Journal of Food And Nutrition
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• v.23 no.2
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• pp.285-290
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• 2010

How to appropriately apply the theories of oriental diet therapy in terms of direction and development are pressing concerns. To address these concerns, this study was performed to provide basic ideas to further the understanding oriental medicinal cuisine(Yack-Sun) and aid its application. Presently, basic data on the nutritional composition and oriental diet therapy area approach of Reajerksodo-tang was acquired to predict the usefulness of Reajerksodo-tang as an edema-related diuretic to promotes urination, drains heat and leaches out dampness. Reajerksodo-tang energy was 67.3 kcal per 100 g, crude protein was 77.2 g, crude fat was 5.7 g, crude ash was 0.6 g and carbohydrate was 16.5 g per 100 g. This basic data could help guide the application of oriental medicinal resources into other foods and serve as a stepping-stone for use of Reajerksodo-tang in the burgeoning field of function foods. Lastly, the scientific effects of oriental medicinal foods developed according to oriental medicinal theory. It is believed to be essential for government policy development concerning validation of medicinal effects and assessment, with the aim of fostering systematic development and providing guidance to food development in the interest of national health.

• 한국약용작물학회:학술대회논문집
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• 2008.11a
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• pp.402-403
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• 2008

• Journal of Physiology & Pathology in Korean Medicine
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• v.20 no.2
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• pp.449-454
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• 2006

This research was planned and executed to evaluate how the nutritional composition and antioxidants contents and antioxidative activity of Hongsambak. Also, can effect health conditions of people who are suffering from diet-related disease like obesity and hyperlipidemia by taking healthy foods with Hongsambak in a form of nutritional supplement with our daily meals. With this observation, we found out that Hongsambak has high content of dietary fiber and effect on antioxidative activity. We concluded that we could apply the components in a form of various foods. The information we received from this conclusion will be a basic information on how we can apply oriental medicinal resources into other foods and in the field of functional food research, which already draes sizable attention world-wide.

• 한국약용작물학회:학술대회논문집
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• 2009.05a
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• pp.243-244
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• 2009

• Korean Journal of Environmental Agriculture
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• v.34 no.4
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• pp.282-287
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• 2015

BACKGROUND: The current study was carried out to investigate Cd, Hg, Pb and As contaminations in 222 commercial medicinal plants and to estimate the potential health risk through dietary intake of commercial medicinal plants in Korea.METHODS AND RESULTS: The Cd, Hg, Pb, and As in medicinal plants were analyzed by ICP/MS and mercury analyzer.The potential health risk was estimated using risk assessment tools. Total amount of Cd in medicinal plants with 29% samples exceeded the standard limit legislated in 'Pharmaceutical Affairs Act' while all plant samples were lower than the standard limit value for As, Hg, and Pb. However, when applying the standard limit for root vegetable (fresh weight) in the Food Sanitation Act, four samples exceeded the standard limit of Pb. For health risk assessment, the values of cancer risk probability were 0.3~5.9×10^-7which were less than the acceptable cancer risk of 10^-6~10^-4for regulatory purpose. Also, Hazard quotientvalues were lower than 1.0.CONCLUSION: Therefore, these results demonstrated that human exposure to Cd, Hg, Pb, and As through dietary intake of commercial medicinal plants might notcause adverse health effects although some medicinal plants were higher than the standard limit values for Cd and Pb.