• Korean Journal of Human Ecology
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• v.6 no.2
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• pp.57-65
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• 2003

To investigate quality characteristics of kimchi prepared for the winter around Chonnam area, home made kimchi samples collected from 22 area, and they were stored at -1${\pm}$1$^{\circ}C$. The results were as follows : The pH and acidity of kimchi samples were 4.75 and 0.84%. respectively. Salt concentration was 3.50% and in Redox potential measurement, Eh value was -134.08mV. Ascorbic acid and reducing sugar contents were 10.l8mg% and 13.25mg%, respectively, In color measurement, L value was 52.29 and a and b values were 19.68 and 27.69, respectively. Total viable count was 5.5${\times}$10$\^$6/ and lactic acid bacteria count and yeast were 4.6${\times}$10$\^$5/ and 8.8${\times}$10$\^$5/. respectively. Properties of hardness of kimchi measured instrumentally was 9.26kgf. Alcohol insoluble solids(AIS) content was 5.53% and hot water soluble pectin(HWSP) content and sodium hexametaphosphate soluble pectin(NaSP) content were 17.35% and 29.65%, respectively, also hydrochloric acid soluble pectin(HClSP) content was 53.0%.

• Korean Journal of Breeding Science
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• v.50 no.4
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• pp.497-503
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• 2018

A strawberry variety 'Arihyang' was derived as an artificial cross between 'Tochiotome' and 'Seolhyang' in 2014. The seedling and line selections were conducted from 2014 to 2015. Preliminary and advanced yield trials of '14-5-5,' which was the final selected line, were conducted from 2015 to 2017. 'Arihyang' is suitable for forced cultivation and has strong plant vigor, uniformly large-sized fruit, and a high yield compared to those of the check variety, 'Seolhyang' and 'Maehyang.' Especially, vitamin C was at a significant level, which was approximately 15% higher than that of 'Seolhyang.' The average number of flowers per first flower cluster was 10.5, which could reduce the labor of thinning fruit. Its fruit has a conical shape, dark red color, and glossy skin. The fruit was of good quality but has recommendations for harvest at the fully ripened stage. 'Arihyang' has intermediate resistant to phytophthora crown rot, but is susceptible to powdery mildew, gray mold, anthracnose, and fusarium wilt. It is reguired to manage major diseases and pests using optimum cultivation techniques and chemical control.

• Culinary science and hospitality research
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• v.22 no.3
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• pp.108-120
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• 2016

This study investigated the quality characteristics of jelly containing peach powder, which is well known for its various functions and biological activity. The feasibility of incorporating peach powder as a value-added food ingredient, using a model food system of jelly, was investigated. Peach powder was incorporated into jelly at 0, 5, 10, 15, and 20% levels. To analyze quality characteristics, pH of the jelly, spread factor, moisture content, color(L, a, b), hardness, DPPH radical scavenging activity, and sensory properties were measured. Qualities, such as pH content, color, hardness, and consumer preferences were determined. Lightness decreased, but redness and yellowness increased significantly (p<0.001). The antioxidative activity measured by DPPH (2,2-diphenyl-1-picrylhydrazyl) radical scavenging activity of the jelly increased as the concentrations of peach powder increased. Lastly, the consumer acceptance test indicated that the highest level of incorporation (15%) had a considerable adverse effect on consumer preferences in all attributes. The jelly with 15% peach powder is recommended (with respect to overall preference score) for taking advantage of the functional properties of peach powder without sacrificing consumer acceptability.

• Proceedings of the Korean Society for Agricultural Machinery Conference
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• 2017.04a
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• pp.141-141
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• 2017

장미과(Rosaceae)에 속하는 딸기(Fragaria ananassa Duch.)는 비타민 C가 풍부하고 독특한 향기를 갖는 과채류로서 겨울에서 봄까지의 기간 동안 대부분 생식으로 소비되고 있다. 국내에서 재배되는 품종으로는 설향, 매향, 장희 등이 있으며 품종에 따라 성분과 함량이 다양하지만 일반적으로 유기산이 많아서 신맛과 단맛이 조화로운 특징이 있다. 소비자들이 딸기를 구입할 때 딸기가 포장된 상자에 모양이 일정하고 붉은 색상이 선명한 딸기에 호감을 갖게 된다. 딸기는 품종에 따라 기준이 되는 모양이 다르기 때문에 숙련된 선별사에 의해서 대부분 육안으로 선별되고 있는 실정이다. 하지만 개인적인 선별 능력의 차이와 주관적인 판단으로 인해 규격을 벗어난 딸기가 혼입되어 전체적인 품질 등급을 떨어뜨리는 경우가 종종 발생하기도 한다. 따라서 본 연구에서는 품종별로 기준이 되는 표준 형상과 비정상적인 모양의 기형 딸기를 객관적으로 판별하여 선별할 수 있는 영상 시스템을 구축하기 위해 수행되었으며 표준이 되는 딸기의 3차원 형상을 구축하기 위해 2차원 레이저 변위 센서를 이용하여 딸기의 입체 영상을 구축하고자 하였다. 실험을 위해 사용된 딸기는 시중에서 구입한 설향 품종이었으며 2차원 레이저 변위 센서는 라인 스캔 방식으로 1회 프로파일 스캔에 1,280개의 데이터 포인터를 획득할 수 있으며 분해능은 0.095~0.17 mm이었다. 상부에 부착된 2차원 레이저 변위 센서와 하부에 놓인 딸기의 거리는 100 mm였다. 획득한 딸기의 2차원 영상은 높이 차이를 이용하여 색상 농도로 표현하였으며 이 영상을 다시 3차원 영상으로 구축하였다.

• Journal of the East Asian Society of Dietary Life
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• v.7 no.4
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• pp.460-467
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• 1997

The purpose of this study was to diagnose nutritional status of vitamin A in female university students. Total of 59 female students in Korea National University of Education, Home Economics Education department were recruited for this study. Retinol and :t major carotenoids in serum($\beta$-carotene, u-carotene, lycopene and lutein) were analyzed by HPLC. The isocratic separation was performed in a $\mu$ Bondapak$^{TM}$ $C_{18}$ stainless steel column with a solvent system of acetonitrile : methanol=85:15. The results of analysis were as follows: The average retinol concentration of 59 female students was 25.9$\mu\textrm{g}$/100$m\ell$. According to biochemical criteria for the assessment of vitamin A status, 18 of them belong to well-nourished and 6 students belong to adequate status. On the other hand, 8 students, 3 freshmen and 5 sophomore, were in critical vitamin A status. Retinol concentrations of junior and senior students were higher than those of freshmen and sophomore (P＜0.001). The average concentrations of serum $\beta$-carotene, lycopene, and lutein were 1.9, 5.4, and 41.4$\mu\textrm{g}$/100$m\ell$, respectively. Serum $\beta$-carotene concentration of senior was significant. higher than those of freshman, sophomore and junior(p＜0.001). Lycopene concentration of freshman was significant. lower than those of the other grades and that of senior was sig, higher than those of the other grades(p＜0.05). Lutein concentrations of junior and senior were significant. higher than those of freshman and sophomore(p＜0.001). The serum $\alpha$-carotene concentrations of the students were too low to analyze.e.

• Journal of the Korean Society of Food Science and Nutrition
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• v.45 no.4
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• pp.518-523
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• 2016

This study investigated the nutritional components and antioxidant activity of dry bitter melon (Momordica charantia L.). The moisture, crude protein, crude fat, crude ash, carbohydrate, and ascorbic acid contents of dry bitter melon were 6.10%, 3.31%, 1.08%, 2.31%, 87.20%, and 908.84 mg/100 g, respectively. Potassium was the most abundant mineral, followed by Mg, P, Na, Ca, Zn, Cu, and Mn, which means dry bitter melon was an alkali material. Regarding amino acid contents, dry bitter melon was rich in arginine, urea, asparagine, ${\gamma}-aminobutyric$ acid, and alanine. Total polyphenol and total flavonoid contents of dry bitter melon extract were 36.08 mg gallic acid equivalents/extract g and 15.66 mg tannic acid equivalents/extract g, respectively. The $IC_{50}$ value for 2,2-diphenyl-1-picrylhydrazyl radical scavenging activity was 9.81 mg/mL for dry bitter melon ethanol extracts.

• Environmental Mutagens and Carcinogens
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• v.23 no.1
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• pp.1-6
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• 2003

The purpose of this study was to evaluate whether the MTHFR variants, folate and vitamin $B_{12}$ deficiencies increase the risk of hyperhomocysteinaemia and adverse pregnancy outcome such as short gestational age or reduced birth weight. Healthy pregnant women (n=136; 24-28 gestational weeks; 20-40 years old), who visited Ewha Womans University Hospital for prenatal care, participated in this study. At the time of delivery, trained nurses recorded the pregnancy outcome from medical chart. We determined maternal MTHFR polymorphisms (C to T subsitution at nucleotide 677) and measured serum homocyteine, vitamin $B_{12}$, and folate concentrations. We compared serum homocysteine level by MTHFR genotype, serum folate and serum vitamin B12 levels using ANOVA. To evaluate the association between serum homocysteine level and pregnancy outcome, we compared the gestational age and birth weight by serum homocysteine levels using multiple regression analysis, adjusting for other potential predictors. Mean level of serum homocysteine was highest among pregnant women of the MTHFR variants with low levels of serum folate and vitamin $B_{12}$. Regarding association with birth outcome, we found the relationship between homocysteine levels and increased gestational age (p=0.03) and reduced birth outcome (p>0.05). Our data demonstrates that serum level of folate and vitamin $B_{12}$ among pregnant women affects significantly serum homocysteine levels, and the genetic polymorphism of MTHFR modulates the relationship between them. However, we did not have conclusive evidence of association between high homocysteine level and adverse pregnancy outcome such as preterm or low birth weight.

• Archives of Plastic Surgery
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• v.35 no.5
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• pp.507-513
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• 2008

Purpose: Interest in the augmentation of hair growth for functional and aesthetic purpose has increased dramatically in recent years. Many hair growth products have been released, but most of these have not been proven scientifically. This study aims to measure the hair growth effect of azelaic acid and vitamin $B_6$, which have been known as hair growth materials, in animal models. Methods: Six weeks old C57BL/6 mice were used in this study and hair of mice were removed by topical treatment. The mice were divided into five experimental groups according to the testing material such as saline (negative control), propylene glycol(vehicle control), azelaic acid, vitamin B6 and azelaic acid plus vitamin B6 in combination. Hair growth was documented photographically and histologically, and then analysed by the high quality hair analysis program system. The quantity of endocrine factors, IGF-I and TGF-${\beta}1$ in the skin of mice was measured by PCR analysis. Results: The topical treatment of azelaic acid and vitamin B6 in combination for 2 weeks to dorsal skin accelerated hair regrowth more than other groups. The azelaic acid and vitamin $B_6$-combined treatment also promoted hair follicle elongation and thickness compared to the others. Histologic studies showed increased number of basal cells in azelaic acid and vitamin $B_6$-combined treatment. Furthermore, the azelaic acid and vitamin $B_6$-combined group significantly increased the expression of IGF-I but decreased the expression of TGF-${\beta}1$ in the skin of mice compared to other groups. Conclusion: These results suggest that azelaic acid and vitamin $B_6$, when used together, have an additive effect and might be used as hair growth materials.

• Journal of the Korean Society of Clothing and Textiles
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• v.21 no.5
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• pp.903-910
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• 1997

Vit. D3 was measured which was produced by UVB irradiation to provit. D3, 7-d ehyd rock o 1 cst or of (7-DH Cl Measuring the amount of vie. D3 when it was irradiated to the fabrics which had different UV8 transmittance, production of vile. Ds by UVB(Ultraviolet B) and inhibition from formation of vile. D3 by fabrics were absorbed and followings are the results. As the amount of irradiated compared UVB increased, the amount of the production of vile. D3 produced by UVB irradiation from 7-DHC was increased. After treatment of 7-DHC by UVB irradiation and incubated respectively for 24hr, 48hr and 72hr at 36.5$^{\circ}C$ The amount of lit. D3 was increased as incubating time passed. When irradiated UVB on 7-DHC, intermediate of vile. D3, lumisterol, tachysterol and previt. D were showed and those materials were seemed to be changed to vile. D3 as incubation time passed. The amount of vile. D3 which was produced by irradiation 7-DHC showed close relation with UVB transmittance rate of summer fabrics (r= 0.987). Clothes, hats, and sun screen cream reduce the amount of vile. D3 Produced naturally in human skin and it result the decrease of calcium in blood which is absorbed through vit. D. Those all can cause or worsen osteomalacia especially to women and the aged people. Therefore, it is necessary to research and to develop function oriented clothing which can transmit UV which produce vile. D3 at the same time which can protect toxical UVB.

• Proceedings of the KAIS Fall Conference
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• 2010.11b
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• pp.1014-1016
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• 2010

우리나라 쌀 생산량은 해마다 증가되고 있으나, 1인당 쌀 소비량은 급격히 감소되고 있는 수급 불균형을 이루고 있다. 특히 충청남도는 최근 6년간 전국 쌀 생산량 1위를 차지해 오고 있어서 쌀 소비의 확대방안이 더욱 절실히 요구되고 있는 지역적 특성을 지니고 있다. 취반용 쌀 소비량 확대만으로는 쌀 소비량 증대에 한계점이 있으므로, 소비자의 요구에 맞는 고 기능성, 간편식으로 다양한 기호성을 지닌 쌀 가공식품 형태의 개발이 필요하게 되었다. 이러한 요구에 적합한 제품개발로 쌀을 이용한 쌀국수를 개발하고자 하였으며, 이러한 쌀국수 제품개발은 쌀을 이용한 제품개발은 또다른 시도가 되어 쌀 소비촉진이 향상될 것으로 기대된다. 기능성 쌀국수 개발을 위하여 천연물 중 연잎 소재를 첨가하였다. 연잎은 차와 사찰음식을 대표하는 소재중 하나이다. 연잎에는 비타민 C와 섬유소가 매우 풍부하다. 이러한 성분은 미용식품으로써의 응용이 가능하며, 식이 섬유소는 배변작용에도 도움이 될 수 있다. 또한 항산화제인 quercetin이 다량 함유되어 있다. 이 quercetin은 플라보이드 배당체이며, 우리 몸의 세포의 노화를 유발하는 유해 활성 산소를 제거하는 기능을 가지고 있다. 따라서 이러한 유해 활성산소를 억제하는 것이 항산화 활성이 높은 연잎을 이용하여 고 기능성 쌀가공품 제품 개발이 가능할 것으로 기대한다. 쌀가루 50%를 기준으로하여 연잎가루는 3% 첨가하였으며, 전분의 종류를 달리하여 최종 제품을 개발한 결과, texture analyser로 물성을 측정한 결과 타피오카 전분과 쌀가루 혼한 쌀국수의 물성이 좋은 결과를 나타내었다. 관능검사 결과도 타피오카 전분과 쌀가루 혼합 쌀국수가 소비자들의 기호도가 높은 선호도를 나타내었고, 감자전분과 밀가루는 다소 낮은 선호도를 나타내었다. 본 연구를 기초로 하여 쌀제품 개발시 쌀의 가공적성 및 기능성 소재의 첨가 비율 확립하고, 연잎과 같은 쌀국수에 첨가 가능한 다양한 기능성 소재 발굴 및 첨가 가능성을 제시하고자 하였다.