• Journal of the Korean Society of Food Science and Nutrition
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• v.33 no.8
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• pp.1268-1272
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• 2004

The 70% ethanol extract from cactus Chounnyouncho (Opuntia humifusa) was fractionated subsequently by hexan, chloroform, ethyl acetate, buthanol and water. The ethyl acetate fraction exhibited strong antimicrobial activities by paper disk diffusion method on the five strains of food born bacteria Bacillus subtilis, Staphylococcus aureus subsp. aureus, Escherichia coli, Salmonella typhimurium and Pseudomonas fluorescens. It has a heat resistance to show inhibitory effect after heat treatment at 11$0^{\circ}C$ for 1 hr. The ethyl acetate fraction showed almost perfect growth inhibition at over 700 ppm on the tested strains.

• Journal of the Korean Society of Food Science and Nutrition
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• v.38 no.12
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• pp.1679-1684
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• 2009

Opuntia humifusa, widely distributed in the southern regions of the Korean peninsula, is known to have bioactive functions and medicinal benefits for treating various diseases such as arteriosclerosis, diabetes mellitus, gastritis, and hyperglycemia. In this study total polyphenol and flavonoid contents of fruit and its anticarcinogenic effects on human breast cancer were investigated. As expected, O. humifusa showed high concentrations of total polyphenol as well as flavonoid as compared to other kinds of cactus. Effects of the water extracts of O. humifusa on the proliferation, G1 arrest and apoptosis of the MCF-7 human breast cancer cells were also examined using the MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assays, and G1 cycle arrest and apoptotic effect of O. humifusa were analyzed by flow cytometry. When MCF-7 cells were treated with different concentrations of hexane, ethyl acetate and water extracts of O. humifusa, water extracts of the fruit significantly decreased viable cell numbers in a concentration dependent manner. A G1 arrest in MCF-7 cells was induced as well. The overall results indicate that water extracts of fruit of O. humifusa would inhibit MCF-7 human breast cancer cell proliferation and induce G1 arrest.

• The Journal of the Korea Contents Association
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• v.14 no.9
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• pp.93-101
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• 2014

My artwork, '1000 years', in the form of an animation film has been exhibited in the '2011 Haein Art project' of a special exhibition at the Haeinsa monastery compound. The '1000 years' represents the marvels of sacredness and Buddhist symbols using the surrealist expression of computer animation. This paper would argue how Buddhist idea can be explored by the surrealist expression of 3D computer animation. In the light of this, animation and surrealist expression will be reviewed by the epistemological approach and based on this, I would attempt to reveal how this computer animation film represents the meaning of Buddhist symbols which exist in the monastery compound. This research is processed by the case study related to my artwork as the form of art practice based research.

• 한국약용작물학회:학술대회논문집
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• 2007.05a
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• pp.274-276
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• 2007

• Proceedings of the Korean Society of Crop Science Conference
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• 2006.04a
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• pp.566-567
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• 2006

• Food Science and Preservation
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• v.22 no.6
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• pp.838-844
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• 2015

The purpose of this study was to perform a functional components analysis and investigate the physical properties of powders made from the stems or fruit of freeze-dried Cheonnyuncho cactus (Opuntia humifusa). The functional components analysis showed that the stem and fruit powders han vitamin C levels of 42.14 mg and 105.21 mg, respectively. The stems powder contained more lutein than the fruit powder. The fruit powder contained more vitamin C than the stem powder. The SDF (soluble dietary fiber) and IDF (insoluble dietary fiber) in the stem powder were 45.24% and 22.15%, respectively, which were higher then the values for the fruit powder. The stem and fruit powders contained 19.30 mg/g and 25.10 mg/g of crude saponin, respectively. The pH of the stem and fruit powders was 5.34 and 5.07, respectively, both indicating low acidity. The L, a and b values of the stem powder color were 78.28, -3.71, and 19.19, respectively. The L, a and b values of the fruit powder color were 55.56, 24.84, and -3.18, respectively. The stems powder had a higher bulk density, water holding capacity, and swelling power than those of the fruit powder, but water-retaining capacity of the stem powder was lower than that of the fruit powder. In addition, the stems powder had a higher viscous material content and water uptake compared to the fruit powder. Based on the above results, we determined that Cheonnyuncho (Opuntia humifusa) powder had potentially useful functional components and physical properties.

• The Science & Technology
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• v.32 no.9 s.364
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• pp.78-80
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• 1999

원시 인간들은 깊은 계곡이나 내륙 들판에만 살다가 약 8천년 전인 신석기 초부터 바다에 접근하여 바다를 이용하면서 살기 시작했다. 바닷물은 왜 짜고 바닷물은 왜 줄지 않는가. 17세기에 이르러 해양지배의 중요성이 인식되기 시작했고 1662년 영국 학술원이 창립되면서부터 해양의 특성을 관측하기 시작했다. 19세기 중반들어 바다의 신비가 풀리면서부터 정규 해양학이 탄생한 것이다.

• Korean journal of food and cookery science
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• v.27 no.5
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• pp.523-530
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• 2011

This study was conducted to investigate antimicrobial, antioxidant and anticancer activities of Opuntia humifusa (OH) petal extracts. The methanol and hexane extracts of OH petals showed their highest antimicrobial activity against Clostridium perfringens. The OH petal butanol fraction had the best antioxidative peroxynitrite scavenging activity among OH petal extracts. The DPPH scavenging activity of OH petals was lower than the peroxynitrite scavenging effect. The hexane and methanol fractions at a concentration of 200 ${\mu}g$/mL inhibited proliferation >80% in four kinds of human cervical cancer cells(B16F10, HepG2, HT-29 and MCF-7). In particular, the anticancer effect against B16F10 human skin cancer cells at the same concentration was higher than that in the other cancer cells.

• Korean journal of food and cookery science
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• v.25 no.4
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• pp.415-420
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• 2009

This study was undertaken to investigate the effect of Opuntia humifusa on the improvement of quality properties of Korean Jeolpyun. Chemical and mechanical properties of unsupplemented Jeolpyun and Jeolpyun supplemented with 1%-4% O. humifusa. Also, a sensory evaluation by a trained panel was conducted. Concerning color difference, the L value decreased, but a and b values increased as O. humifusa content increased. Texture analysis revealed that hardness, cohesiveness and adhesiveness were the highest in the unsupplemented control group. The texture parameters decreased as the O. humifusa addition ratio increased. In sensory evaluation, color and taste scores were highest score in 2% O. humifusa supplemented samples, with no difference in flavor being evident. Chewiness and adhesiveness scores were highest score in 4%-supplemented O. humifusa samples. Overall quality score was highest in the 2% O. humifusa samples. The addition of $2{\sim}3%$ O. humifusa optimizes Korean Jeolpyun.

• Journal of Life Science
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• v.27 no.6
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• pp.680-687
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• 2017

Recently, there has been a marked increase in the use of bioactive products resulting from the fermentation of natural substances by microorganisms. In this study, Opuntia humifusa (OH) was fermented using Lactobacillus plantarum (fermented Opuntia humifusa; fOH). We then examined the anti-obesity effect of fOH in mice fed a 45% Kcal high fat diet (HFD). In this study, mice were treated with fOH concentrations of 100, 200, and 400 mg/kg. The mice in the control group were treated with OH at a concentration of 400 mg/kg based on previous animal experiments. All of the mice given a continuous HFD showed an increase in their weight, the density of abdominal fat, and the accumulated periovaric and abdominal fat. All of these obesity-linked factors, however, were significantly decreased in the groups treated with fOH at concentrations of 200 and 400 mg/kg. Mice treated with fOH at 100 mg/kg did not show a significant decrease in these obesity-linked factors compared to the control group. It appears that fOH fermented by L. plantarum has a greater anti-obesity effect in HFD-supplied mice compared to unfermented OH. While further studies of fOH are needed to examine its effect on obesity, hyperlipidemia, hepatic steatosis, renal function, and type II diabetes with its relevant complications, fOH may have significant therapeutic potential in the treatment of metabolic syndrome.