개똥쑥(Artemisia annua L.)은 국화과 (Compositae)에 속하는 일년생 초본으로 예로부터 진 통, 안면마비 등의 신경계 질환과 위염, 호흡기 등의 질병치료 목적으로 이용되는 식물로 알려져 있다. 개똥쑥을 열수 및 70% 에탄올로 추출하여 추출용매에 따른 추출물의 농도별로 항산화 활성 및 항염증 효과에 미치는 영향을 검토하고자 실시하였다. 총 polyphenol의 함량은 개똥쑥 70% 에탄올 추출물에서 열수 추출물에 비하여 유의적으로 높게 나타났으나, 총 flavonoid 함량은 개똥쑥 열수 추출물과 70% 에 탄올 추출물에서 유의적 차이는 보이지 않았다. DPPH radical 소거능력과 ABTS radical 소거능력은은 62.5∼500 μg/mL 농도에서는 비타민 C 처리구에서 가장 높게 나타났고 그 다음으로는 70% 에탄올 추출물, 열수 추출물 순으로 높게 나타났다. 125 ∼ 500 μg/mL에서 NO 생성 억제효과를 측정한 결 과 열수 추출물에서는 500 μg/mL 농도에서 강한 NO 생성 억제를 보이며, 농도의존적으로 NO 생성 억제를 나타났다. 70% 에탄올 추출물에서는 NO 생성 억제 뿐 아니라 염증성 싸이토카인 발현을 현저 히 억제하는 결과를 보이며, 농도의존적인 억제 효과를 나타났다. 개똥쑥은 항산화효과 및 염증성 싸이 토카인의 발현을 현저히 감소시키는 효과를 보이므로 염증성 질환 치료 및 개선에 널리 사용될 수 있으 리라 사료된다.
본 연구에서는 α-glucosidase 저해활성이 우수한 천연 자원을 개발하기 위하여 개똥쑥으로부터 천연 물질을 분리·동정하고 분리된 물질에 대하여 α-glucosidase 저해활성을 측정하였다. 개똥쑥 잎과 줄 기의 chloroform층과 ethyl acetate층으로부터 각각 6개와 5개의 화합물을 분리하였다. 분리한 화합물 중 chloroform층으로부터 분리된 ArteCA(M.W. 316g/mol, C16H12O7)는 isorhamnetin, ArteCB(M.W. 360g/mol, C18H16O8)는 chrysosplenol D, ArteCC(M.W. 316 g/mol, C16H12O7)는 rhamnetin, ArteCD (M.W. 374g/mol, C18H16O8)는 chrysosplenetin, ArteCE(M.W. 284g/mol, C21H20O12)는 acacetin 그리 고 ArteCF(M.W. 270g/mol, C16H14O4)는 imperatorin으로 확인되었다. 한편 EtOAc층으로부터 분리된 ArteEAA(M.W. 178g/mol, C9H6O4)는 6,7-dihydroxy coumarin, ArteEAB (M.W. 192g/mol, C10H8O4) 는 scopoletin, ArteEAC (M.W. 448g/mol, C21H20O11)는 kaempferol-3-O-b-D-glucoside, ArteEAD (M.W. 464 g/mol, C21H20O12)는 quercetin-3-O-b-D-glucoside 및 ArteEAE(M.W. 318g/mol, C15H10O8)는 myricetin으로 확인되었다. 이 중에서 ArteEAE(myricetin)는 α-glucosidase에 대하여 97.3%의 높은 저해활성을 가지고 있었으므로, 혈당조절용 건강식품 또는 치료제 개발을 위한 물질로 활용될 수 있을 것으로 판단되었다.
This study was conducted to investigate the effects of addition of Artemisia annua L. powder in jeonbyeong. Contents of crude ash increased as the amount of Artemisia annua L. powder increased, whereas crude fat contents decreased. According to increasing contents of Artemisia annua L. powder, total amino acid contents significantly increased. Hunter’s L value increased as contents of Artemisia annua L. powder increased, whereas total free sugar contents decreased. Addition of Artemisia annua L. powder to jeonbyeong increased dietary fiber contents. The sensory score of jeonbyeong containing 100 g of Artemisia annua L. powder was the highest of all jeonbyeong tested. According to the results, addition of Artemisia annua L. powder could improve the quality and sensory characteristics of jeonbyeong.
개똥쑥 추출물의 항산화 활성 및 그 유효물질의 함량을 최적화할 수 있는 추출 조건을 확립코져 반응표면 분석법에 의한 중심합성계획에 따라 15가지의 추출 조건(온도: 50∼90℃, 시간: 3∼15 hr, 에탄올 농도: 0∼100%)에서 실험하였다. 개똥쑥 추출물의 DPPH, ABTS 라디칼 소거활성 및 환원력은 J 조건(90℃, 9 hr, 50%의 에탄올 농도)에서 가장 높았으며, NO 라디칼 소거활성은 H 조건(80℃, 12 hr, 75%의 에탄올 농도)에서 가장 높았다. 총 페놀 화합물 및 플라보노이드 함량은 J 조건에서 가장 많았으며, 다음으로 H 조건의 추출물이었다. 반응표면분석 결과 개똥쑥의 최적 추출조건은 평균 89.37℃, 8.55 hr 및 56.77% 의 에탄올 농도인 것으로 나타났으며, 실측값은 예상값의 89.88∼115.54%에 해당되었다.
This study was conducted to compare the volatile flavor compounds of Artemisia annua L. after extraction by simultaneous steam distillation extraction (SDE) and solid-phase micro extraction (SPME) followed by gas chromatography-mass spectrometry (GC-MS) analysis. Via SDE and SPME processes, 79 (1,254.00 mg/kg) and 39 (488.74 mg/kg) compounds were identified respectively. The compounds extracted by SDE included 27 alcohols, 13 aldehydes, 22 hydrocarbons, 3 esters, 12 ketones, 1 oxide and 1 N-containing compound, on the other hand, using the SPME method, 7 alcohols, 5 aldehydes, 1 ester, 18 hydrocarbons, 7 ketones, and 1 oxide were extracted. The major volatile flavor compounds of Artemisia annua L. isolated by the two methods were caryophyllene oxide, -caryophyllene, camphor, -selinene, -muurolene, 1,8-cineol, (E)-pinocarveol and pinocarvone. β β γ The sesquiterpene named caryophyllene oxide was the most abundant volatile flavor compound with relative contents of 234.16 mg/kg and 195.44 mg/kg obtained by the SDE and SPME methods, respectively. Among the identified volatiles, sabinene, β-pinene, α-terpinene, γ-terpinene, yomogi alcohol, myrtenol, (Z)-nerolidol, p-cymen-8-ol and eugenol were detected by the SDE method only while (E)-anethole and α-cubebene were detected by the SPME method only. This study confirmed that the composition and contents of the volatile flavor compounds vary between different extraction methods. More volatile flavor compounds were identified using the SDE method than the SPME method.
The purpose of this study was to determine the optimum amount of Artemisia annua L. powder for adding rice flour. The A. annua powder was added to the rice flour at ratios of 1% (30 g/3 kg), 2% (60 g/3 kg), 3% (90 g/3 kg, w/w). As the amount of A. annua powder in rice cake dough increased, carbohydrate, ash content, total amino acid, and dietary fiber contents increased whereas the moisture content decreased. Hunter’s L value decreased as A. annua powder content increased. On the contrary, the a- and b values increased. The sensory score of the rice cakes containing 30 g of A. annua powder was the highest of all the rice cakes tested. Based on these results, adding A. annua powder could improve the quality and sensory characteristics of rice cake.
This study was conducted to obtain the basic data for using the Artemisia anuua as a new economic crop,thus Artemisia anuua was investigated their cultivation characteristics, yield, and variation of artemisinin contents by plantingdensity and harvesting times. Seed characteristics of A. anuua have observed micro-size, and their germination optimumtemperature was at 15 to 20 celsius degree. Planting density on the yield of A. anuua was increased high density better thanlow density. The highest yield was planted in the space of 30×10㎝. Moreover, optimum harvesting time of A. anuua wasinvestigated in early september and a periods of most highly detected artemisinin was time of before and after bloomingof A. anuua.Key Words : Art
In order to development medicinal Artemisia herbs of high quality, Korean A. annua L. were investigated with its ecological and morphological characteristics, and basic statistical data of agronomic characteristics. This species, which is annual herb, is mainly distributed to marginal land, riverside, roadside, grassland. Ecological niche is low species in competition of the others. Its pollination is basically anemogamous, but is frequency pollinated by insects. This species is characterized as tap root, 1~3 pinnate compound leaf of ovate or narrowly ovate, stem is green, erect and solitary. Inflorescence is paniculate, receptacle is not hair. Capitulum, consist of ray floret and disk floret, is subglobose shape. Additionally, this species could be easily discriminated from related Artemisia herbs by the capitulum size. Ray floret is female, disk floret is bisexual. Flowering season is from August to October. Seed is achene unattached hair. Stem length ranged from 179 cm to 225 cm, and stem diameter and number of branch were 17.14 ± 1.68 mm, 2.43 ± 0.51 mm, respectively. Length and width of leaf were 14.5 ± 0.5 cm, 15.0 ± 1.0 cm, and leaf number of main stem were 48.06 ± 10.57 cm, respectively. Fresh weight of aerial parts and root were 364.7 ± 14.1 g, 32.6 ± 5.1 g, and its dry weight were 136.6 ± 10.0 g, 14.9 ± 2.34 g, respectively.