• Weed & Turfgrass Science
• /
• 제3권2호
• /
• pp.102-109
• /
• 2014

율무밭에 발생하는 잡초발생양상과 잡초로 인한 피해정도를 파악하여 율무밭 잡초방제의 기초자료로 활용하기 위하여 2013년 5월부터 9월까지 3회 조사하였다. 율무밭에 발생하는 잡초는 33과 98종으로 일년생잡초가 58종(59.2%), 월년생잡초 21종(21.4%) 그리고 다년생잡초가 19종(19.4%)이었다. 이 중 외래잡초는 31종이나 덩굴성 외래잡초인 둥근잎유홍초, 미국나팔꽃, 둥근잎나팔꽃 등의 발생이 많았다. 우점도가 높은 잡초로는 바랭이, 깨풀, 돌피, 쇠비름, 미국가막사리 등이었으며, PCA 분석한 결과, 3개 그룹(미국개기장 군락, 돌피-털진득찰 군락, 깨풀 군락)으로 나눌 수 있었다. 잡초방임구에서 율무의 수량감소는 잡초관리구에 비하여 60% 감소하였다.

• 한국작물학회지
• /
• 제42권6호
• /
• pp.778-782
• /
• 1997

율무 뿌리의 수분 적성 및 생육 단계별 한발피해 정도를 구명하기 위해 실시한 시험결과를 요약하면 다음과 같다. 1. 율무 종자의 발아는 산소가 부족한 혐기조건하에서는 극히 부량하였으나 발아이후에는 해를 받지 않는 작물이었다. 2. 율무 뿌리의 횡단면 세포배열은 세포간극이 큰 직열구조로 되어 있었고 담수하에 놓이면 피층(통기구조) 면적이 점차 확대됨을 알 수 있었다. 3. 담수상태하의 율무는 지주근 및 기근이 상위절에서 많이 발생되었을 뿐만 아니라 엽고병 발병이 억제되었고 등숙이 양호하였다. 4. 율무의 생육 단계별 한발피해는 출수기 한발처리에서 가장 피해가 컸다.

• 한국약용작물학회지
• /
• 제8권3호
• /
• pp.259-265
• /
• 2000

본 연구는 율무 종자소독제인 Fludioxonail 10% 종자처리 액상수화제의 침종기간이 발아율 및 병발생에 미치는 효과를 구명하기 위해 수행된 결과를 요약하면 아래와 같다. 시내 실험에 있어 율무종자를 3일간 종자소독 후 3일 침종처리시 발아율이 93.8%로 기타 처리구에 비해 높았으며, 부패율은 침종기간이 길수록 높아지는 경향이었다. 폿트 및 포장시험에서 율무종자를 3일간 종자소독 후 3일 침종처리시 출현율이 기타 처리구에 비해 높았으며, 입고병은 침종기간이 길수록 심해지는 경향 이었다. 포장재배에서 생육상황은 약제처리간 큰 차이가 없었으며, 10a당 조곡 수량은 무처리 194kg에 비해 3일간 종자소독 후 3일 침종처리구와 6일 종자소독구에서 $26%{\sim}27%$ 증수하였다. 이상의 실험결과를 종합하여 볼 때 율무의 출현율향상 및 병발생을 줄이기 위해서는 3일간 종자소독 후 3알 침종처리 또는 6일 종자소독이 적당하다고 여겨진다.

• 대한본초학회지
• /
• 제35권6호
• /
• pp.21-28
• /
• 2020

Objectives : The objective of this study was to investigate the improvement effect of Sprout of Coix lacryma-jobi var. mayuen Stapf water extract (SC) on the dextran sulfate sodium (DSS)-induced ulcerative colitis mice. Methods : The antioxidant activity of SC was measured through total polyphenol and total flavonoid content in vitro. The experiment was conducted with seven-week-old male Balb/c mice. After 1 week adaptation, acute colitis was induced by oral administration of 5% DSS dissolved in drinking water, for 7 days. And normal mice received drinking water without DSS throughout the entire experimental period. For each experiment, the mice were divided into 4 groups and 24 colitis mice were arbitrarily allocated into 3 groups (n = 8/group); Normal group, Control group, SC 100 mg/kg treated group (SCL), SC 200 mg/kg treated group (SCH). Serum and colon tissues were collected after one weeks of drug administration. Results : ROS levels, ONOO^- levels, AST, and ALT in serum were decreased in SC treated groups compared to the control group. Western blotting measurements of Nrf2, HO-1, SOD, catalase, GPx-1/2, IL-4, IL-10, and Bcl2 showed that the SC treated groups was increased compared to the Control group. Also, western blot measurements of NF-κBp65, p-IκBα, COX-2, iNOS, TNF-α, IL-1β, Bax, and Caspase-3 showed that the SC treated groups was reduced compared to the Control group. Conclusion : Taken together, these results suggest that SC treatment can attenuate the DSS-induced colitis though inhibiting NF-κB pathway and enhancing Nrf2 pathway. Therefore, SC was the potential to be used as a natural therapeutic drug.

• 한국약용작물학회지
• /
• 제27권5호
• /
• pp.339-347
• /
• 2019

Background: Adlay (Coix lacryma-jobi L. var. ma-yuen Stapf.) is an important medicinal and cereal crop that contains high levels of protein, fatty acids and crude fiber, as well as calcium, phosphorus, zinc, minerals, and essential amino acids. Despite its economic significance, little is known about biological activity in adlay sprouts. This study investigated the total free sugar, polyphenol and flavonoid content, and antioxidative activity in adlay sprouts at different growth stages. Methods and Results: The total free sugar and coixol content of germinated adlay sprouts were analyzed by high performance liquid chromatography. The total phenolic content was measured by the Folin and Denis, and flavonoid content by the Davis method. Antioxidative activity was tested by the 2,2-diphenyl-1-picryl hydrazyl method. All measured component, including total phenolic and coixol content ($2.71{\pm}0.02mg/g$ and $59.70{\pm}0.01mg/g$), and antioxidant capacity ($IC_{50}$; $453.93{\mu}g/m{\ell}$) were highest in 3 day old adlay sprouts. In contrast, total free sugar and flavonoid content (3.02% and $0.60{\pm}0.02mg/g$) were highest in sprouts at 5 days after sowing. In addition, there was a strong positive correlation between antioxidative activity and total polyphenol content (r = 0.902, p < 0.001). Conclusions: Adlay sprouts between 3 days and 5 days following germination contain high levels of functional components and free sugar. This study therefore suggests that adlay sprouts can be developed as a valuable health-promoting food and a good source of natural antioxidants.

• 대한본초학회지
• /
• 제36권5호
• /
• pp.109-115
• /
• 2021

Objectives : 'Johyun' yulmoo which is a new variety of Coix lacryma-jobi var. ma-yuen Stapf sprout was developed and registered by Rural development administration in 2004. This variety was derived from the cross between single cross of Suwon-6 and Okayama and UCN300-25 as F1. It is characterized by early maturity, short plant height, a strong resistance, and a superior yield and is suitable for the central and northern regions. Accordingly, we were performed and evaluated single oral dose toxicity test of 'Johyun' yulmoo sprout (JYS) in Sprague-Dawley (SD) rats. Methods : Single oral dose toxicity test was performed using with male and female rats. Rats were divided into two groups: Group 1, vehicle-treated rats (Control); Group 2, JYS 5000 mg/kg-treated rats. JYS was orally administered to male and female rats at dose levels of 5000 mg/kg. Animals were monitored on the mortality, clinical signs, body weight changes, and necropsy findings for 14 days. groups : Group 1, vehicle-treated rats (Control); Group 2, JYS 5000 mg/kg-treated rats. JYS was orally administered to male and female rats at dose levels of 5000 mg/kg. Animals were monitored on the mortality, clinical signs, body weight changes, and necropsy findings for 14 days. Results : After oral treatment of JYS, we could not find any mortality at 5000 mg/kg. Compared with the control group, there were also no significant differences in clinical sign, weight changes, weight gain, and gross abnormalities in JYS 5000 mg/kg-treated group. Conclusions : Taken together, these results suggest that approximate lethal dose of JYS was considered as over 5000 mg/kg. Results from this study provide scientific evidence for the safety of JYS. Moreover, this study could be used as a basis for dose-setting data of the repeated dose 13-week oral toxicity test of JYS.

• 대한본초학회지
• /
• 제36권6호
• /
• pp.39-46
• /
• 2021

Objectives : AMP-activated protein kinase (AMPK) is a key metabolic regulator that reduces lipogenesis. AMPK is mainly activated via phosphorylation of liver kinase B (LKB) 1 under energy stress. Here, we highlighted the anti-obesity effect and underlying mechanism of Coix lacryma-jobi var. mayuen Stapf sprout water extract (CSW) sprout extract in connection with the LKB1/AMPK signaling pathway. Methods : C57BL/6 mice (20~25 g) fed HFD to induce obesity and at the same time administered CSW 100 mg/kg (CSWL; (CSWL; CSW low concentration) or CSW 200 mg/kg (CSWH; CSW high concentration) or Garcinia extract (Garcinia) 200 mg/kg orally for 6 weeks. Body weight and food intake were measured at the same time each day. After 6 weeks of CSW administration, liver tissue and serum were obtained through an autopsy. After the end of the experiment, biochemical analysis (triglycerides (TG), total cholesterol (TC), HDL-cholesterol, and LDL-cholesterol) was performed on the serum. And then, protein levels related to TG and TC synthesis were measured through western blot analysis in liver tissue. Results : As a result, serum TG, TC, and LDL-cholesterol levels were significantly increased in the control group and significantly decreased in the CSW administration group. On the other hand, the HDL-cholesterol level was increased in the CSW-administered group. And as a result of Western blot analysis, CSW significantly increased the phosphorylation of LKB1 & AMPK, and remarkably decreased the expression of factors related to TG and TC synthesis. Conclusions : Our findings suggest that CSW influences the TG and TC synthesis to positively affect HFD-induced obesity in C57BL/6 mice.

• Natural Product Sciences
• /
• 제16권4호
• /
• pp.291-294
• /
• 2010

In obesity, adipocytes undergo abnormal growth characterized by increased cell numbers and differentiation. Thus, inhibition of mitogenesis of preadipocytes and their differentiation to adipocytes would be beneficial for the prevention and progression of obesity. In the present study, we attempted to evaluate antiadipogenic activity of adlay (Coix seed, the seed of Coix lacryma-jobi L. var. ma-yuen Stapf) employing preadipocytes cell line, 3T3-L1 as an in vitro assay system. Because several varieties of adlay are in use in Korea, anti-adipogenic activity of three varieties of adlay such as Sang-Gang, Jo-Hyun and Yulmu-Ilho was evaluated. All the three varieties of adlay showed significant inhibitory activity on adipocyte differentiation as assessed by measuring fat accumulation using Oil Red O staining. Adlay, however, showed little effects on adipocyte proliferation. Further studies with interval treatment demonstrated that adlay exerted inhibitory activity on adipocyte differentiation via acting on early stage of adipogenesis. Taken together, adlay might be useful in the prevention of obesity.

• 한국버섯학회지
• /
• 제18권1호
• /
• pp.20-28
• /
• 2020

노루궁뎅이균사로 발효한 율무 열수추출물의 항산화, NO 생성저해, tyrosinase 합성 억제, melanin 생성 저해 및 유용성분 분석을 수행하였다. 노루궁뎅이균사발효율무열수추출물의 ergosterol 함량은 740.2 mg%으로 나타났으며, 원료로 사용한 율무 열수추출물에서는 검출되지 않았다. 노루궁뎅이균사발효율무 열수추출물의 β-glucan 함량은 245.3 ± 5.1 mg%으로 나타났다. 노루궁뎅이균사발효율무 열수추출물은 100%, 104.1%, 107.2%, 105.3%, 102.1%, 101.3%, 100.4%의 세포생존율이 측정되어, 율무열수추출물보다 노루궁뎅이균사발효율무 열수추출물의 세포생존율이 더 높게 나타났다. B16F10 cell 500 ug/mL 농도로 처리했을 때, 노루궁뎅이균사발효율무 열수추출물은 8.9 μM의 NO 생성율을 보여, 율무 추출물(10.6 uM)의 NO생성율 보다 낮은 NO 생성율을 나타내었다. 10, 30, 50, 100, 200, 300 및 500 mg/mL 모든 농도에서 율무 열수추출물보다 노루궁뎅이균사발효율무 열수추출물이 유의적으로 tyrosinase 및 melanin 생성을 억제함을 확인 할 수 있었다. 노루궁뎅이균사발효에 따른 DPPH radical 및 ABTS radical 소거활성 측정결과 노루궁뎅이 균사발효 율무열수추출물이 율무 열수추출물보다 항산화 효과가 높음을 확인하였다. 따라서 추가적인 연구를 통해 노루궁뎅이균사발효 율무열수추출물은 기능성식품 원료와 식품 첨가물, 화장품 산업에 이용될 수 있을 것으로 생각된다.

• 한국유기농업학회지
• /
• 제22권2호
• /
• pp.321-334
• /
• 2014

국내 식물자원 및 약용식물들의 식물 생장촉진 효과를 조사하기 위하여 64종 65점의 추출물 시료를 조제하여 벼(Oryza sativa) 유묘 생장에 미치는 영향을 평가하였다. 그 결과, 11종 12점의 쑥(Artemisia princeps) 경엽, 엉겅퀴(Cirsium japonicum var. maackii) 전초, 진달래(Rhododendron mucronulatum) 가지와 잎, 갈대(Phragmites communis) 줄기, 율무(Coix lacrymajobi var. mayuen) 전초, 싸리(Lespedeza bicolor) 가지와 잎, 산수국(Hydrangea serrata f. acuminata) 전초, 속단(Phlomis umbrosa) 전초, 감초(Glycyrrhiza uralensis) 근경, 감초(G. uralensis) 경엽, 당귀(Angelica gigas) 뿌리 및 천궁(Cnidium officinale) 근경 추출물은 벼 유묘 생장을 촉진시키는 것으로 나타났다. 본 결과에 따라 상기 식물 종의 부위들은 식물 생장촉진용 농가 자가제조 액비 개발을 위한 소재로써 활용가능성이 있는 것으로 판명되었다.