• 문화기술의 융합
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• 제6권4호
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• pp.45-52
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• 2020

이 연구는 회화 및 울금으로 단독 염색한 견직물 그리고 쪽과 회화 및 쪽과 울금으로 복합 염색한 견직물의 염색성 및 항균성에 대하여 검토한 것이다. 회화 및 울금으로 단독 염색한 견직물의 Munsell 표색계의 색상은 각각 5.0Y 및 0.6Y로 노란색 계열을, 쪽과 회화 그리고 쪽과 울금 추출액으로 복합 염색한 견직물의 색상은 각각 2.6BG 및 1.5BG로 청록색 계열을 나타내었다. 쪽과 회화로 복합 염색한 견직물의 일광견뢰도는 3등급으로 비교적 양호하였고, 드라이클리닝견뢰도 및 마찰견뢰도의 경우, 네 종류의 염색 견직물 모두 4~5등급으로 우수하게 나타났다. 회화 추출액으로 염색한 견직물의 Staphylococcus aureus에 대한 항균활성은 99.5% 그리고 나머지 세 종류의 염색 견직물은 99.9%의 뛰어난 항균성을 나타내었다. 또한 Klebsiella pneumonia에 대한 항균활성에 있어서도 회화 추출액으로 염색한 견직물은 99.6%, 그 나머지 세 종류의 염색 견직물은 99.9%의 우수한 항균성을 나타내었다.

• 대한한의학회지
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• 제40권3호
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• pp.35-58
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• 2019

Objectives: The aim of this study was to investigate the anti-inflammatory effects of Curcuma longa rhizoma extract in an experimental rat model of osteoarthritis. Methods: Osteoarthritis was induced in rats by injecting monosodium iodoacetate (MIA) into the knee joint cavity of rats. The rats were divided into 5 groups (Normal, Control, positive comparison, low (CL) and high (CH) concentration groups). Rats in the low concentration (CL) group had MIA-induced osteoarthritis; they were treated with Curcuma longa rhizoma extract at a dose of 50mg/kg body weight. Rats in the high concentration (CH) group had MIA-induced osteoarthritis; they were treated with Curcuma longa rhizoma extract at a dose of 100mg/kg body weight. Hind paw weight distribution and ROS levels were measured. At the end of all treatments, changes in alanine aminotransferase (ALT), aspartate aminotransferase (AST), blood urea nitrogen (BUN), and creatinine levels were analyzed. In addition, inflammatory protein levels were evaluated by western blot analysis. Results: In this study, hind paw weight distribution significantly improved in the CL and CH groups, while. Reactive oxygen species (ROS) production significantly decreased in both. The levels of ALT, AST, BUN, and creatinine did not significantly change in either group. The production of nicotinamide adenine dinucleotide phosphate oxidase 4 (NOX4), $p47^{phox}$, and Ras-related C3 botulinum toxin substrate 1 (RAC1) decreased in both. Catalase, heme oxygenase-1 (HO-1) and superoxide dismutase (SOD) significantly increased in the CL and CH groups, respectively. Nuclear factor erythroid 2 (Nrf2) increased, but there were no significant differences between the experimental and control groups. Inflammatory cytokines, including nuclear factor-kappa Bp65 (NF-${\kappa}Bp65$), interleukin-1beta (IL-$1{\beta}$), and tumor necrosis factor-alpha (TNF-${\alpha}$), decreased significantly in both the CL and CH groups. Conclusions: Our results showed that Curcuma longa rhizoma extract has anti-inflammatory effects. Anti-inflammatory activity is regulated by the inhibition of inflammatory cytokines and mediators, such as NF-${\kappa}B$, therefore, it suppresses cartilage damage as well.

• 한국식품저장유통학회지
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• 제18권2호
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• pp.219-225
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• 2011

본 연구에서는 울금의 품종별 생리활성을 확인하기 위하여 우리나라에서 재배되고 있는 울금, 강황 및 보라울금의 근경을 실험재료로 하여 total polyphenol 함량, 항균활성, 항균물질의 열안정성 및 pH안정성과 항산화활성을 측정하였다. 울금 품종별 total polyphenol 함량은 울금과 강황에서 보라울금에 비하여 높은 함량을 나타내었다. 울금의 추출 용매에 따른 항균활성은 ethanol 추출물이 15.4~16.3 mm로 가장 강한 항균활성을 나타내었으며 ethylacetate, ether, hexane 순으로 높은 활성을 나타내었다. 품종별로는 울금 ethanol 추출물의 항균활성이 다른 품종에 비하여 높게 나타났으나 E coli와 젖산균 2종, 효모 2종에서는 항균활성이 나타나지 않았다. 울금 ethanol 추출물은 열 및 pH변화에 안정함을 확인하였다. 추출물별 울금의 전자공여능은 ethanol 추출물에서 74.2%로 높은 항산화성을 보였고 ethyl acetate, ether, water, hexane 추출물 순으로 나타났다. 품종별 울금의 전자공여능을 ethanol 추출물에서 비교했을 때 울금 74.2%, 강황 43.98%, 보라울금 43.05%로 나타나 울금에서 강한 항산화성을 보였다. 대조구로 사용한 vitamin C와 BHA는 각각 95%와 96.1%의 높은 전자공여능을 나타내었다. 울금 품종별 항산화성은 울금이 강황과 보라울금에 비하여 월등히 높음을 확인하였다.

• 한국식품저장유통학회지
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• 제20권1호
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• pp.1-6
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• 2013

본 실험은 Curcuma longa L.의 비만, 인슐린 저항성 효과에 대해 알아보기 위하여 C. longa 를 50% 에탄올로 추출물을 제조한 다음 실험동물을 통하여 알아보았다. 실험동물로는 정상동물인 SD계 랫트와 2형 당뇨 모델인 db/db 마우스를 사용하였고 식이로는 고지방식이(15%fat diet)를 사용하였고 C. longa는 식이에 넣어 제공하였다. SD rat 에서 체중, 총지방량은 1.5% 울금식이군이 대조군보다 유의적으로 감소하였다. 혈청에서 인슐린, HOMA-IR, TG는 1.5% 울금식이군이 대조군보다 유의적으로 감소하는 것을 관찰할 수 있었다. db/db 마우스에서 체중은 1.5% 울금식이군이 대조군보다 감소하는 경향을 보였으나 유의적이지는 않았고 총지방량은 1.5% 울금식이군이 대조군보다 유의적으로 감소하는 것을 관찰 할 수 있었다. 본 실험에서 공복 시 혈당은 2주마다 측정하였는데 1.5% 울금식이군이 대조군보다 유의적으로 감소하였고 hemoglobin A1c도 유의적으로 감소하는 것을 관찰 할 수 있었다. 공복 시 혈당과 hemoglobin의 유의적인 감소로 인하여 혈청에서 측정한 insulin, HOMA-IR이 감소하는 경향을 보인 것으로 사료된다. 이상의 결과로 보아 C. longa 추출물은 체중조절 및 혈당조절에 도움이 되는 천연약물로서의 기능성이 입증되었다고 사료된다.

• Journal of Applied Biological Chemistry
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• 제66권
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• pp.338-344
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• 2023

Curcuma longa is a plant belonging to the genus Curcuma and is distributed across various Asian regions. This plant is widely known for its rhizomes, which possess a variety of pharmacological properties. However, although the leaves and stems of this plant also contain several health-promoting secondary metabolites, very few studies have characterized these compounds. Therefore, our study sought to quantify the secondary metabolites from the leaves and stems of Curcuma longa L. (LSCL) using liquid chromatography-electrospray ionization-mass spectrometry (LC-ESI-MS) and high-performance liquid chromatography (HPLC). Our LC-ESI-MS analyses detected twenty-one phenolic compounds in the LSCL, among which fifteen compounds were detected via HPLC analysis. Four compounds, namely vanillic acid (0.129 mg/g), p-coumaric acid (0.431 mg/g), 4-methylcatechol (0.199 mg/g), and afzelin (0.074 mg/g) were then quantified. These findings suggest that LSCL is rich in secondary metabolites and holds potential as a valuable resource for the development of functional and nutritional supplements in the future.

• Bulletin of the Korean Chemical Society
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• 제30권10호
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• pp.2287-2293
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• 2009

Gas Chromatography-Mass Spectrometry (GC-MS) fingerprint analysis, Principle Components Analysis (PCA), and Hierarchical Cluster Analysis (HCA) were introduced for quality assessment of Curcuma longa L. (C. longa). The GC-MS fingerprint method was developed and validated by analyzing 33 batches of samples of C. longa from different geographic locations. 18 chromatographic peaks were selected as characteristic peaks and their relative peak areas (RPA) were calculated for quantitative expression. Two principal components (PCs) were extracted by PCA. C. longa collected from Guizhou and Fujian were separated from other samples by PC1, capturing 71.83% of variance. While, PC2 contributed for their further separation, capturing 11.13% of variance. HCA confirmed the result of PCA analysis. Therefore, GC-MS fingerprint study with chemometric techniques provides a very flexible and reliable method for quality assessment of C. longa.

• 동아시아식생활학회지
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• 제25권5호
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• pp.806-812
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• 2015

본 연구에서는 테스토스테론으로 전립선 비대를 유도한 래트에 울금(Curcuma longa L.)의 열수추출물을 다양한 농도로 급여하여 그에 따른 염증인자의 변화를 검토하였다. 조직학적 분석에서 울금 열수추출물(CL) 급여에 따라 전립선비대가 완화되는 것을 검토할 수 있었으며, 염증성 사이토카인인 TNF-${\alpha}$, IL-6 및 IL-$1{\beta}$이 전립선 비대 유도군에서 그 발현이 현저히 증가하였으나, 각 농도의 CL 군에서는 농도의존적으로 감소하였다. 또한, CL 급여에 따라 finasteride enzyme인 COX-2와 염증 전사인자인 NF-${\kappa}b$의 활성화의 감소를 확인하였다. 이와 같은 결과는 전립선 비대에서 울금 열수추출물이 항염증 효과로써 전립선 비대의 유발 및 발전을 억제시킬 수 있다는 것을 부분적으로나마 설명할 수 있는 기초 자료가 될 수 있다고 사료된다.

• Journal of Applied Biological Chemistry
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• 제52권4호
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• pp.212-215
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• 2009

The inhibitory effects of Curcuma longa rhizome-derived materials against nitric oxide (NO) production were assessed. The inhibitory effect (57%) on NO production was evidenced by the methanol extract of C. longa at $1\;{\mu}g/mL$. In the fractionation of the methanol extract, the ethyl acetate fraction evidenced an inhibitory effect greater than 62.1% at $1\;{\mu}g/mL$. The active constituent was identified as curcumin. Curcumin exerted potent inhibitory effects of 78.7 and 65.7% at concentrations of 1 and $0.5\;{\mu}g/mL$, respectively. Furthermore, the inhibitory effect of ar-turmerone was measured as 31.3 and 15.8% at 1 and $0.5\;{\mu}g/mL$, respectively. The iNOS expression-suppressive effects of curcumin were assessed via western blot analysis. Our results suggest that curcumin and ar-turmerone may prove useful in the development of new types of NO inhibitors.

• 셀메드
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• 제2권4호
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• pp.31.1-31.7
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• 2012

Curcuma longa belongs to the family Zingiberaceae and can be found in the tropical and subtropical regions of the world. It is widely used in Asiatic countries, especially India and South East Asia where it is cultivated commercially as a condiment. Its rhizomes exhibit anti-inflammatory, anti-human immunodeficiency virus, anti-bacterial, antioxidant effects, nematocidal activities, antiproliferative and antiangiogenic activities and are of pharmaceutical importance. Another relevant medicinal property exhibited by it is antidiabetic property which is reviewed here. Studies on the efficacy of crude C.longa extracts against type 2 diabetes in murine models reveal that it demonstrates a hypoglycemic effect by lowering the blood glucose levels under in vivo conditions. Clinical studies have revealed the safety of curucmin (major principle component exhibiting pharmaceutical properties from C.longa) on humans but with very low bioavailability. In view of its effective hypoglycemic effect and its low bioavailability, further studies are needed for the characterization of the bioactive principles and formulating the development of C.longa extracts as a novel anti-diabetic therapeutic agent.

• Journal of Applied Biological Chemistry
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• 제66권
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• pp.106-113
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• 2023

Plant extracts have been studied due to their potential as photoprotective agents against UV and blue light exposure. Previous studies have revealed that several plant extracts have photoprotection capacities and synergistic effects with synthetic products. However, such results for pu'er tea and Curcuma longa L. have not been reported yet for a cosmetic formulation. Thus, the objective of this study was to evaluate photoprotection capacities of pu'er tea and C. longa L. extracts for a sunscreen compound. The pu'er tea extract improved sun protection factor value of 2-ethyl-hexyl methoxycinnamate (a synthetic sunscreen compound) by 46% and showed a high antioxidant capability that could help skin recover from photo-induced damage. C. longa L. extract also showed a potential to protect skin from blue light-induced damage because it not only had a maximum absorption peak at the blue light range, but also protected human fibroblasts from blue light-induced damage. The addition of both extracts shifted the critical wavelength of 2-ethyl-hexyl methoxycinnamate from 350 nm to 386 nm, giving it a broad-spectrum feature. Thus, pu'er tea and C. longa L. extracts may enhance the photoprotection ability of synthetic sunscreen products.