• 한국약용작물학회:학술대회논문집
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• 한국약용작물학회 2012년도 심포지엄 및 춘계학술발표회
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• pp.251-252
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• 2012

• 양봉협회회보
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• 통권347호
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• pp.47-47
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• 2009

• 한국자원식물학회지
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• 제32권6호
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• pp.723-729
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• 2019

Fagopyrum esculentum (Buckwheat) is a globally used alternative crop that contains several useful substances with various effects; however, many of these substances (rutin, quercetin, etc.) are water insoluble. To extract these substances, alcohols is required, which is inconvenient because these solvents cause diverse problems. Many studies are underway to achieve effective extraction of these substances with water. Among of these studies, microwave assisted water extraction (MAE) has been performed extensively. In this study, we performed the extraction in various solvents and/or microwave from Fagopyrum esculentum. The analysis of the content of useful substances and the bioactivity were performed and shown to increase in MAE. Liquid chromatography-mass was performed in order to identify of the useful water-insoluble substances. Catechin, quercetin, and rutin, which are all insoluble in water, were hardly extracted with water even on heating (4.4 ppb, 3.9 ppb and 60.3 ppb, respectively). However, MAE was found to extract much more of these substances than water (1204 ppb, 110.8 ppb and 2946 ppb, respectively). Although less efficient than alcohols, MAE showed much higher efficiency than simple water extraction. These results indicate that water extraction using microwave technology is effective in cases where it is difficult to extract useful substances using water.

• 대한화장품학회지
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• 제40권2호
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• pp.179-186
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• 2014

본 연구는 쓴메밀 추출물(FTE)의 미백 효과를 검증하기 위해 DPPH 라디칼 소거능, ABTS 라디칼 소거능, 타이로시나아제 활성 저해 효과 및 세포내 멜라닌 합성 억제 효과를 측정하였고, 단메밀 추출물(FEE)과 그 효능 비교를 하였다. 그 결과로 쓴메밀 추출물은 단메밀 추출물보다 항산화 효과 및 타이로시나아제 활성 저해, 세포내 멜라닌 합성 억제 효과가 높음을 확인하였다. 또한 인체 적용 실험에서 자외선 조사에 의한 인공 색소침착을 유발한 후, 쓴메밀 추출물을 함유한 크림을 제조하여 도포하였고, 8주 경과 후 피부 밝기를 측정한 결과 통계적으로 유의한 수준의 피부 미백 효과를 나타내었다. 이러한 결과들로 쓴메밀 추출물은 미백 개선을 위한 화장품 소재로 이용 가능성이 높을 것으로 기대된다.

• Asian Pacific Journal of Cancer Prevention
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• 제13권5호
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• pp.2409-2414
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• 2012

Objective: Traditional Chinese herbal medicines have a very long history. Rosa roxburghii Tratt and Fagopyrum cymosum are two examples of plants which are reputed to have benefits in improving immune responses, enhancing digestive ability and demonstrating anti-aging effects. Some evidence indicates that herbal medicine soups containing extracts from the two in combination have efficacy in treating malignant tumors. However, the underlying mechanisms are far from well understood. The present study was therefore undertaken to evaluate anticancer effects and explore molecular mechanisms in vitro. Methods: Proliferation and apoptosis were assessed with three carcinoma cell lines (human esophageal squamous carcinoma CaEs-17, human gastric carcinoma SGC-7901 and pulmonary carcinoma A549) by MTT assay and flow cytometry, respectively, after exposure to extract from Rosa roxburghii Tratt (CL) and extract from Fagopyrum cymosum (FR). $IC_{30}$ of CL and FR were obtained by MTT assay. Tumor cells were divided into four groups : control with no exposure to CL or FR; CL with $IC_{30}$ CL; FR with $IC_{30}$ FR; CL+FR group with 1/2 ($IC_{30}$ CL + $IC_{30}$ FR). RT-PCR and Western blot analysis were used to detect the expression of Ki-67, Bax and Bcl-2 at mRNA and protein levels. Results: Compared with the CL or FR groups, the combination of CL+FR showed significant inhibition of cell growth and increase in apoptosis; the mRNA and protein expression levels of Ki-67 and Bcl-2 in CL+FR group were all greatly decreased, while the expression of Bax was markedly increased. Conclusions: These results indicate that the synergistic antitumor effects of combination of CL and FR are related to inhibition of proliferation and induction of apoptosis.

• 동의생리병리학회지
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• 제23권3호
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• pp.695-699
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• 2009

UV irradiation causes skin-aging involving coarse wrinkles, thickening, dyspigmentation, and rough skin surface. This study was carried out to develop health & functional food by using Korean red ginsneg and Fagopyrum esculentum extract mixture (RGFE) for prevention of skin wrinkles. The RGFE-treated group showed the more effective collagenase inhibition rate than the red ginseng (RG)-treated group. To investigate photo protective effects of RGFE on UV-induced damaged skin, SKH hairless male mice were orally administerd RGFE and regional treatment and irradiated with UV for up to 8 weeks. In RGFE-treated group, better skin, and less wrinkle formation were observed compared with UV group. Epidermal thickness of hairless mouse was significantly decreased in RGFE, RG, and Fagopyrum esculentum (FE) groups compared with UV group. These results demonstrate RGFE have photo-protective effects on UV-damaged hairless mouse skin.

• 한국자원식물학회지
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• 제18권2호
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• pp.246-250
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• 2005

아시아 지역에서 수집한 야생 쓴메밀의 종자 및 식물체 내의 루틴함량을 조사하였다. 쓴메밀은 종자 및 식물 전체부위에서 숙근메밀이나 단메밀보다 높은 루틴 함량을 나타냈다. 특히, 꽃은 숙근메밀의 2.2배, 단메밀의 9.5배, 줄기는 각각 3.1배와 24.9배, 종자는 3.2와 65배나 높았다. 3종에 대한 식물체 부위별 루틴함량은 모두 꽃>잎>종자>줄기>뿌리의 순으로 높았다. 종피색에 따른 루틴함량은 암회색>검은색>갈색, 회갈색 순의 경향을 나타냈으며, 종자의 형태는 Slender>Notched>Round 순으로 루틴함량이 높았다. 재배종은 야생종에 비해 루틴함량이 잎은 1.3배, 줄기가 1.4배, 종자가 1.2배의 높은 경향을 보였다. 부탄지역 수집품종은 잎, 줄기, 종자의 루틴함량이 다른 지역보다 높은 경향을 보였고, 슬로베니아 및 파키스탄지역 수집품종은 잎, 줄기에서, 인도 및 네팔지역 수집품종은 종자에서 가장 낮은 루틴함량의 경향을 보였다.

• 대한한의학방제학회지
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• 제17권1호
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• pp.153-162
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• 2009

Panax ginseng C.A. Meyer, Korean herb medicine, has been widely used in China and Japan for fatigue and enhancement of resistance to many diseases. In this study, we investigated the synergistic effect of Korean red ginseng and Fagopyrum esculentum extracts (RGFE) on dermal bioactive properties. RGFE treatment significantly increased electron donating ability, nitrite scavenging activity and collagenase inhibitory activity compared to red ginseng-treated group. Superoxide dismutase (SOD) activity in RGFE-treated group was similar to that of red ginseng. However, tyrosinase activity as indicator of melanin synthesis was not affected by RGFE or red ginseng. The results indicate that RGFE has anti-oxidative property and inhibitory effect of collagenase, and it may serve as a effective ingredient for beauty food.

• 한국자원식물학회지
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• 제11권3호
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• pp.335-344
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• 1998

Percicarp anatomy of Fagophrum was examined on the basis of 12 species and two subspecies to contribute to a better understanding of specific phylogenetic relationship within genus. Examined species have a similar mature pericarp structure, but differences among the species are found with respect to whether or not sclerotic cells are present, and what kind of is the sclerotic cell shape in theexocarp. By the comparisons with pericarp anatomical structure, they are classified into three groups. First clade is composed of F. esculentum , F. esculentum ssp. ancestralis and F. homotropicum ; second clade is consisted of F. tataricum, F. tataricum ssp. potanini and Fl cymosum ; third clade is composed of f. callianthum,F. capillatum, F. gracilipes, F. leptopodum, F.lineare, F. pleioramosum, F.statice and F.urophyllum. The phylogey based on pericarp characters was considerably consistent with ones proposed by previous authors. It also suggested that pericarp characters are useful informatino for deduceing phylogenetic phylogenetic realtionship within geneus Fagopyrum. On the other hand, morphological character evolution indicated that there are tow synapomorphies in genus. There,it was suggested that these species having selfing and homostylous characters are evolved form heterostylous and ourcrossing species.

• 대한화장품학회지
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• 제34권2호
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• pp.83-92
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• 2008

본 연구에서는 기능성 화장품에의 응용하기 위하여, 메밀 추출물의 항산화, 미백 및 항주름 효능을 측정하고, 그 추출물의 성분 분석을 실시하였다. 씨앗 부분의 껍질과 껍질을 제거한 속으로 나누어 실험하였다. 항산화 효능은 1,1-diphenyl-2-picrylhydrazyl radical(DPPH)을 이용한 free radical 소거 활성 측정, luminol-의존성 화학발광법을 이용한 $Fe^{3+}-EDTA/H_2O$ 계에서 생성된 활성산소종(ROS)의 소거 활성 측정, rose-bengal과 빛으로 유도된 사람 적혈구의 용혈에 대한 세포보호 효과를 측정하였다. 미백과 항주름 효능으로는 tyrosinase와 elastase의 활성 저해 능력을 측정하였다. 항산화 및 항노화 효능 측정 결과, 대부분 메밀 속 50% ethanol 추출물을 제외한 나머지 분획 및 추출물에서 효과가 크게 나타났다. Free radical 소거활성($FSC_{50}$)과 총항산화능($OSC_{50}$)은 각각 메밀 껍질의 aglycone 분획($3.5{\pm}0.0{\mu}g/mL$)과 ethyl acetate 분획($0.2{\pm}0.1{\mu}g/mL$)이 가장 높은 것으로 나타났으며, 세포보호활성(${\tau}_{50}$)은 메밀 껍질의 ethyl acetate 분획이 10 ${\mu}g/mL$에서 $771.7{\pm}9.9$ min으로 $^1O_2$으로 유도된 세포손상에 대한 보호작용이 가장 크게 나타났다. Tyrosinase 활성 저해 능력($IC_{50}$)은 메밀 껍질과 속의 aglycone 분획이 각각 $53.6{\pm}0.5{\mu}g/mL,\;35.6{\pm}0.4{\mu}g/mL$으로 arbutin보다 효과가 좋은 것으로 나타났다. Elastase 활성 저해 능력($IC_{50}$) 또한 메밀 껍질과 속의 aglycone 분획이 각각 $3.7{\pm}0.4{\mu}g/mL,\;6.0{\pm}0.7{\mu}g/mL$으로 나타났다. 이러한 항산화 및 항노화 활성을 나타내는 메밀의 성분을 분석한 결과, 메밀 속의 ethyl acetate 분획에는 (+)-catechin, (-)-epicatechin이 함유되어 있었고, 껍질에는 hyperin의 함량이 가장 많은 것으로 나타났으며, 이외에도 quercetin, rutin 등의 많은 플라보노이드 성분들이 함유되어 있는 것으로 나타났다. 이상의 결과들은 메밀 속 및 껍질 추출물이 $^1O_2$ 혹은 다른 ROS를 소광시키거나 소거함으로써 그리고 ROS에 대항하여 세포막을 보호함으로써 생체계, 특히, 태양 자외선에 노출된 피부에서 항산화제로서 작용할 수 있음을 가리킨다. 또한 태양 자외선으로 인한 기미, 주근깨 과형성 및 주름 생성에 있어 상당한 저해 효과를 나타낼 수 있음을 시사한다.