• Applied Biological Chemistry
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• v.38 no.6
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• pp.581-583
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• 1995

Anthocyanins in Korean pigmented rice(Oryza sativa var. Suwon 415) were analyzed to develop value-added natural pigment from rice. The pigment extracted with 1% HCl in methanol was determined as anthocyanins by characteristic absorption spectra in UV-visible ranges showing maximum absorbance at 280 nm and 530 nm. Two aglycones from acid-hydrolyzed anthocyanins were identified as cyanidin and malvidin by their $R_f$ values in several developing solvents, spectral properties, and $^1H-NMR$ analysis. Sugar moiety was determined as monoglucose by paper chromatography. The main anthocyanins in Korean pigmented rice were tentatively identified as cyanidin-3-glucoside and malvidin-3-glucoside.

• Journal of Industrial Technology
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• v.21 no.B
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• pp.11-20
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• 2001

This laboratory study examined the impact of free chlorine residual and pipe material on the formation of biofilm in drinking water distribution pipe surfaces. Result of heterotrophic plate counts(HPC) of the biofilm in the tap water-supplied reactor averaged $2.17{\times}10^5CFU/cm^2$ on PVC and $2.43{\times}10^5CFU/cm^2$ on STS 316, respectively. HPCs on the surface exposed to the tap water containing 0.2mg/L of free chlorinne residual averaged $4.24{\times}10^4CFU/cm^2$ on PVC and $6.54{\times}10^4CFU/cm^2$ on STS 316, respectively. Average of HPC/Total direct counts in the tap water-supplied reactor ranged from 1.08%(PVC) to 1.26%(STS 316) and from 0.38%(PVC) to 0.65%(STS 316) in the reactor supplemented with disinfectant, respectively. No correlation was observed between disinfectant addition and biofilm density. With regard to the biofilm formation, little difference existed between PVC and STS 316. Yellow and red pigmented bacteria were the dominant expressions in bulk fluid, whereas non-pigmented bacteria were found dominant in the biofilm. Pink/red pigmented bacteria were found to be facultative anaerobic, while yellow pigmented bacteria and non-pigmented bacteria were found to be obligate aerobic.

• Korean journal of food and cookery science
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• v.18 no.5
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• pp.529-533
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• 2002

Yukwa was prepared with the glutinous rice by the addition of different ratio of pigmented rice (0, 3, 5, 7, 10%) and were steeped for 7 days at 20$^{\circ}C$. No significant differences were found among the samples when the textural properties of Yukwa dough and base were measured using a texture analyzer. But the crispness was decreased with tile increase of the addition level of pigmented rice. The redness (a value) and yellowness (b value) of the dough and Yukwa base were increased and the lightness (L value) was decreased as the addition levels increased. The expansion rate of Yukwa was decreased with the increase of addition levels. The overall acceptability of Yukwa prepared with the addition of 7% pigmented rice was the best in the sensory evaluation.

• Food Science and Biotechnology
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• v.17 no.3
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• pp.457-463
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• 2008

The effects of dietary supplementation of the unrefined rice bran oil from 'Suwon 415' pigmented black rice (BRBO) on cholesterol metabolism and cellular antioxidant status were investigated in hypercholesterolemic rats. The significant reduction of total cholesterol (TC) and low density lipoprotein cholesterol (LDL-C) concentrations was observed in the plasma of rats fed BRBO. BRBO also decreased plasma and hepatic oxidative stress as a result of increased levels of hepatic thiobarbituric acid reactive substances (TBARS) levels associated with the elevations of hepatic superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GSH-Px) activities together with increased plasma level of tocopherol. This study indicates that dietary BRBO supplement can leads to the improvement of overall cholesterol metabolism and antioxidant status even more effectively than 'Chuchung' white rice (WRBO). Consumption of BRBO may also protect the liver from oxidative damage caused by lipid peroxidation.

• Journal of Korean Foot and Ankle Society
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• v.13 no.2
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• pp.211-213
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• 2009

Pigmented villonodular synovitis (PVNS) is a rare proliferative disorder that affects synovium, tendon sheath and bursa. Although the condition can present in any joint, knee joint is the most commonly affected site and only 2.5% of cases occur in foot and ankle joint. PVNS occurs in two types: localized and diffuse. Localized type is characterized by focal involvement of the synovium with either nodular or pedunculated masses, Diffuse type affects virtually the entire synovium. Diffuse type has reported more recurrence rate. We have experienced a patient who has diffuse type PVNS of ankle joint and report an optimal method of surgical treatment.

• Journal of the Korean Graphic Arts Communication Society
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• v.16 no.3
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• pp.61-80
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• 1998

To investigate in influence of photosensitizer used with benzophenone(BP) in the curing rate and physical properties of UV curable hard coating on plastic, we prepared UV curable clear and pigmented coatings with DEA, DMA, NPM and TEA as photosensitizer, respectively. The curing rate calculated from the decrease of the absorbance of acrylic double bond measured by FT-IR spectroscopy increased s follows; DEA>DMA>NPM>TEA. this order could be explained by the reactivity of diethylamino group of DEA and the ease of formation of activated complex between BP and photosensitizer during the curing process. In UV curable pigmented coatings, the order of curing rate increased as follows; DEA>DMA>TEA>NPM. It was found that the curing rate of the pigmented coating can be increased by light scattering of TiO$_2$. The hardness of coating film cured by photosensitization of DEA and DMA is higher than other photosensitizers due to the crosslinking reaction of DEA and DMA radical bound to polymer backbone.

• Journal of Fisheries and Marine Sciences Education
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• v.28 no.3
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• pp.841-847
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• 2016

To study the influence of background color and substratum on hypermelanosis of starry flounder, we compared the daily food intake (DFI), the feed efficiency (FE), the survival, the growth, the ratio of pigmented area on the blind side and the ratio of hypermelanic fish duplicately reared for 180 days in dark-green FRP aquarium (control), white FRP aquarium together with dark-green substratum. The ratio of pigmented area on the blind side was significantly higher at the dark-green group than at the white group. DFI, FE and growth were higher in the dark-green substratum. Pigmented area rate and ratio of hypermelanic fish were significantly higher at the dark green group than at the high dark-green substratum. The results suggest that bright tank color and substratum bottom could inhibit the hypermelanosis.

• Journal of Korean Neurosurgical Society
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• v.56 no.3
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• pp.272-277
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• 2014

Pigmented villonodular synovitis (PVNS) is a benign proliferative joint disease with an uncertain etiology that uncommonly involves the spine. We present a case of PVNS involving the lumbar spine. A 38-year-old male developed back pain and pain in both legs caused by a mass in the L4 region of the right lamina. After gross total tumor removal, the symptoms improved. The pathological finding was synovial hyperplasia with accumulation of hemosiderin-laden macrophages. He was diagnosed with PVNS and experienced no recurrence for up to 2 years after surgery. In this report, we review the previous literature and discuss etiology, clinical manifestations, diagnosis, and treatment.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.60 no.2
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• pp.153-166
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• 2015

Production of high quality pigmented rice contained with high content of anthocyanin, and polyphenol was significantly influenced by cultivation environments like transplanting date and cultivation location. This study was carried out to establish an optimum transplanting date and cultivation region to produce maximum content of anthocyanin, polyphenol and antioxidant activity of pigmented rice varieties (black, red colored). Three transplanting times (May 20, June 5, June 20) and four different sites (Miryang, Uiseong, Sangju, Bonghwa) were evaluated with five pigmented rice cultivars. Anthocyanin and total polyphenol index to average temperature during 30 days after heading (DAH) of black, red pigmented rice varieties showed that anthocyanin and total polyphenol contents were decreased by 10% and 9%, respectively, with increasing average temperature of $1^{\circ}C$. The optimum ripening temperature of the 30 DAH for the production of high anthocyanin and total polyphenol was 22 to $23^{\circ}C$ for early maturity black rice, 21 to $22^{\circ}C$ for mid-late maturity of black and red rices, respectively. On the other hand, an estimated heading date of pigmented rices in return according to the optimum ripening temperature of the 30 DAH was ranged Aug. 11 to 17 for early maturity black rice, Aug. 25 for mid-late maturity black, red rice variety in Jecheon, Aug. 27 to Sep. 2 for early maturity type, Sep. 3 to 6 for mid-late type in Daegu. It seemed that Jecheon, Boeun, Mungyeong, and Yeongju were optimum regions for cultivation of pigmented rices. The estimated sowing date of pigmented rices for high anthocyanin and total polyphenol production based on the optimum heading date was May 18 to 26 for early maturity black rice variety, April 11 for mid-late black, red variety in Jecheon, May 23 to 28 for early type, April 9 to 26 for mid-late type in Boeun, respectively.

• Journal of Korean Orthopaedic Sports Medicine
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• v.7 no.1
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• pp.37-44
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• 2008

Purpose: To purpose of this study was to review the long-term follow up results of surgical treatment of the localized pigmented villonodular synovitis in the knee. Materials and Methods: We evaluated and analyzed 6 patients (6 cases) who underwent arthroscopy and excisional biopsy as pigmented villonodular synovitis from March 1988 to June 2002. The clinical diagnosis was confirmed by pathologic findings. All patients had been managed with arthroscopic excision, but two patients underwent mini-open excision. The recurrence was evaluated by the loss of preoperative symptom and physical examination for range of motion, pain and finding of swelling. Results: According to the arthroscopic findings, all patients had localized form of pigmented villonodular synovitis. Three patients had pedunculated type (one of them had torsion) and the two patients had nodular type and one patient had mixed type. All patients had improvement in pain, swelling and range of motion and there was no evidence of recurrence. Conclusion: In terms of long term follow up results, precise preoperative diagnosis and the adequate surgical treatment, especially arthroscopic excision for the localized pigmented villonodular synovitis, would be considered one of the fundamental modality to expect the good results.