• 한국식품조리과학회지
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• 제21권4호
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• pp.433-439
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• 2005

Soybean is an important plant as it is the source of protein and oil as well as various phytochemicals that are related with biological activity. Over the past decades, scientists have conducted considerable research on the physiological properties of soybeans, especially isoflavones, which are the characteristic components in soybeans. However, there is no research on the properties or the bio-functionality of soybean leaf. Jangachi and kimchi are two of the traditional special dishes of Gyungsang Province in Korea which we made from soybean leaves. Depending on the recipe, green or yellow soybean leaves are used for the preparation of these two side dishes. We compared the antioxidative activity and measured the contents of isoflavones, total phenol, chlorophylls, carotenoids, and vitamin C in the ingredients (green and yellow soybean leaf) and the final side dishes (jangachi and kimchi). We Int report that isoflavones were contained in soybean leaf and that jangachi had the highest isoflavone contents among the samples. Yellow soybean leaf contained higher isoflavones than green soybean lear and kimchi. From the TEAC assay results, the sequence or antioxidative activities was yellow soybean leaf > soybean leaf jangachi > green soybean leaf > soybean leaf kimchi. The sequence was the same with total phenol contents, indicating that antioxidative activity is highly related with total phenol level. Chlorophylls, carotenoids and vitamin C existed abundantly in green soybean leaf. In conclusion, soybean leaf could be a good material for health due to the presence of isoflavones and the other useful antioxidants mentioned above.

• 한국식품영양학회지
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• 제23권2호
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• pp.226-232
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• 2010

새로운 항치매성 건강식품을 개발하기 위해 아세틸콜린에스터레이즈(AChE)를 강력하게 저해하는 추출물을 곡류와 두류의 다양한 추출물로부터 선발한 후 최적 추출 조건을 조사하였다. 추출물 중 수수 메탄올 추출물이 63.4%의 가장 높은 AChE 저해 활성을 보였다. 수수를 80% 메탄올로 $40^{\circ}C$에서 12시간 추출했을 때 최대의 AChE 저해 활성을 나타내었다. AChE를 저해하는 수수 메탄올 추출물의 영양성과 생리 기능성을 조사하였다. 메탄올 추출물은 유리당으로 고형물 100 g당 4.78 g의 포도당과 4.13 g의 자당 및 0.97 g의 과당을 함유하였다. 또한, 수수 메탄올 추출물의 고형물 100 g에 linoleic acid 273.82 mg, oleic acid 215.65 mg, palmitic acid 122.03 mg, stearic acid 4.96 mg을 함유하고 있었고, 주요 유기산으로 주석산 27.45 mg, 말론산 15.43 mg, 사과산 9.94 mg이 메탄올 추출물 1 g에 함유되어 있었다. 수수 메탄올 추출물은 항치매 활성 외에도 콜레스테롤 합성을 저해하는 HMG-CoA reductase 저해 활성이 50.2%이었고, 항산화 활성은 56.1%를 보였다.

• 한국식품영양학회지
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• 제28권4호
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• pp.635-642
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• 2015

This study was performed to investigate the physiological functionality of jerusalem artichokes and to define its antioxidant potential. The study also evaluated mook prepared with jerusalem artichokes powder as a new functional food for ameliorating Diabetes Mellitus. Regarding the chromaticity of mook prepared with jerusalem artichoke, lightness decreased as the amount of jerusalem artichoke increased (p < 0.05), while the redness and yellowness values increased significantly (p < 0.05). Regarding the mechanical properties, hardness, springiness, chewiness, gumminess, and cohesiveness decreased significantly as the amount of jerusalem artichoke increased (p < 0.05). The total polyphenol and flavonoid contents of JA30 were 7.36 mg TAE/g and 2.15 mg RE/g, respectively, which were higher than those of the control group(3.50 mg TAE/g and 0.76 mg RE/g, respectively). The DPPH and ABTS scavenging abilities ($IC_{50}$) for JA30 were 4.40 and 5.70 mg/mL, respectively, indicating a higher radical scavenging ability than the control group (7.59 and 7.24 mg/mL, respectively). The ${\alpha}-glucosidase$ inhibitory effect ($IC_{50}$) of JA30 and the control group was 18.91 and 24.01 mg/mL, respectively. Based on the above-described results, mook containing jerusalem artichoke powder is expected to ameliorate diabetes with antioxidant activity, ${\alpha}-glucosidase$ inhibitory effect, and sensory factor. Also, it is believed that this functional material has the potential to improve health.

• 한국축산식품학회지
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• 제24권3호
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• pp.303-309
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• 2004

Conjugated linoleic acid (CLA) is currently under intensive investigation due to its health benefits. A great deal of interest has been paid to the possible health-promoting roles of CLA, but there are not many studies available on the mechanism of CLA production by ruminal microorganisms. CLA is produced as an intermediate of the characteristic biohydrogenation process of linoleic acid(LA) in the rumen and its production has direct relationship to numerous environmental factors including particle association, substrate concentration, forage-to-grain ratio, pH, ionopore, bacterial cell density, etc. Some of these factors were known to affect hydrogenating activities of Butyrivibrio fibrisolvens A38 which is an active rumen bacterium in CLA production. Dairy cow is a main source of CLA, and its level could be increased by dietary manipulation changing the physiological environment of rumen bacteria such as B. fibrisolvens A38. Therefore, the effects of various factors on. ruminal biohydrogenation should be carefully considered to optimize not only CLA production, but also other fatty acid metabolism, both of which are directly affecting nutritional quality and functionality of dairy products. In this review, the relationship between various environmental factors and ruminal CLA production is discussed focusing on the CLA production of B. fibrisolvens A38.

• 감성과학
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• 제15권1호
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• pp.9-16
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• 2012

크림은 피부의 보습효과를 비롯하여 유연기능 등 다양한 목적으로 사용된다. 최근에는 천연향 성분의 크림제품이 출시되면서 그 기능에 관심이 모아지고 있다. 본 연구에서는 곽향, 유향, 백단향, 무향 그리고 새로 개발된 조합향(S6) 5개의 천연향을 대상으로 심리생리적 인체 영향을 평가하였다. 첫 번째로 대전지역에 거주하는 20~30대 여성 100명을 대상으로 감성 형용사를 이용한 주관적 평가를 수행하였다. 그 결과, 조합향을 가장 선호하는 것으로 나타났다. 두 번째로 주관적 평가에 참가한 응답자 중 20명을 대상으로 EEG와 ECG, GSR을 측정하였다. EEG 분석 결과, 각 조건에서 알파파의 비율이 높게 나타나는 것을 확인하였다. 통계적 분석 결과, 조합향에서 유의하게 나타나 긴장완화 효과가 가장 큰 것을 알 수 있었다($p$ < 0.05). 이런 결과는 심전도와 피부전기저항 측정값에서도 동일한 경향으로 나타났다. 세 번째로 조합향 제품을 사용하였을 때 피부상태를 측정하였다. 그 결과 피부 온도와 습도, 피부 움직임 속도가 증가하였다. 보습효과와 탄력 효과가 있음을 확인할 수 있었다.

• 한국식품위생안전성학회지
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• 제32권6호
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• pp.531-535
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• 2017

본 연구에서는 김치로부터 L. mesenteroides CJNU0041을 분리하여 16S rRNA 염기서열 분석을 통해, 동정하였으며, ${\beta}$-glucosidase 활성이 우수한 것으로 나타났다. L. mesenteroides CJNU0041를 이용한 브로콜리 발효 동안 생균수와 pH 및 ${\beta}$-glucosidase 활성에 대해 분석한 결과, 발효 시간은 48 hours이 적당한 것으로 판단되었다. 또한, 발효 후 생물 전환이 일어남을 HPLC 분석을 통해 확인하였다. 그리고, L. mesenteroides CJNU0041의 브로콜리 발효물에서 C. difficile에 대한 생육 억제 효과를 확인 할 수 있었다. 따라서, 본 연구를 통해 분리된 신규 L. mesenteroides CJNU0041을 C. difficile의 생육 제어를 위한 유산균 제재화가 가능할 것으로 판단되며, 브로콜리 발효물도 다양한 식품에 적용이 가능할 것으로 사료된다.

• 한국식품영양학회지
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• 제34권5호
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• pp.516-525
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• 2021

In this study, vin chaud were manufactured with eight types of vin chaud-bomb containing different amounts of ingredients, and Campbell Early wine. Samples were analyzed for pH, total acidity, volatile acidity, ethanol content, total polyphenol, and anthocyanins, and radical scavenging activities for antioxidant effect. Based on the results of this study the pH of the samples ranged from 3.34 to 3.41 and the total acidity of wines ranged from 0.55 to 1.00%. The alcohol contents of the vin chaud samples ranged from 3.8~5.8% to and the color intensity of the vin chaud samples was higher than that of the wine. Total polyphenol content was 145.90~262.98 mg% and the tannin content of the C-1 (236.90 mg%) was the highest among the samples. The ABTS and DPPH radical scavenging activity of the samples were 57.39~75.10% and 63.71~80.00% respectively. α-Glucosidase inhibitory activity ranged from 21.54 to 33.49%, on the other hand, wine was not detected and tyrosinase inhibitory activity had the highest values (39.26%) in the C-1 sample. The findings of the present study provide insightful scientific information on vin chaud, and forms a basis for further innovations in the food and wine industry.

• 한국식품영양학회지
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• 제32권2호
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• pp.148-154
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• 2019

The aim of this study was to select compounds for the standardization of fermented Kalopanax pictus Nakai (KP-F), to develop the analysis method using HPLC-PDA and to perform method validation. KP-F is a fermented powder developed to improve the original physiological activities and create a new functionality. Eleutheroside E, Acanthoside B, and Syringaresinol were selected as the standard compounds and developed our own method for simultaneous analysis. The analyte was isolated using C18 column with a gradient elution of 0.05 M phosphoric acid in water and methanol as the mobile phase at a flow rate of 1 mL/min and detected at 210 nm. As a result, all standard compounds showed good linearity with an $R^2$ (coefficient of correlation) of 1.000 and for the limit of detection range of $0.710{\sim}0.831{\mu}g/mL$, and the limit of quantification as $2.150{\sim}2.520{\mu}g/mL$. The precision was RSD (%) of less than 4.80%, while the accuracy was 4.70%>RSD (%) for the range 102.44~110.48%. In conclusion, the developed analysis method is suitable for the detection of Eleutheroside E, Acanthoside B, and Syringaresinol in KP-F.

• 한국의류산업학회지
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• 제21권1호
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• pp.112-119
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• 2019

This study had a purpose of further investigating and developing the usage of the eco-friendly functional dye that has physiological and pharmacological functions. This study was implemented complex dyeing method which used both natural dyes such as Gardenia jasminoides J.Ellis colorant, which are the yellow dyes that have high brightness and low chroma, and Xanthium strumarium L. extract. The silk fabrics were used to dye in various methods. They were also used to investigate functionalities dyed fabrics by various treating method, such as their color fastness, antibacterial activities and deodorization, the following were obtained. The fabrics that were dyed with herbs had decreasing brightness as the herbs extract concentrations were increased and had subtly changing chroma. But, because their K/S values were under 0.5, they were not properly dyed. Color fastness differed according to the natural dyes and herbs' complex dyeing order. The Color fastness was good when the fabrics were dyed with the colorant first, and then with the herb. When the fabrics were dyed with mixture dyeing solution, the natural dye and the herb extract, the herb didn't affect the dyeabilities of fabrics as much. When the fabrics were dyed with the mixture of the colorant and the herb extract, the dyeabilities didn't have much changes. However, their color fastnesses were improved a little bit due to the complex dyeing condition. When the fabrics were dyed with the mixture of the colorant and the herbs extract, their antibacterial activities and deodorization were increased.

• 한국의류학회지
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• 제46권3호
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• pp.424-435
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• 2022

Aesthetic impression, structural stability, functionality during exercise, freedom of movement and physiological suitability should be considered when developing aquarobic wear for middle-aged women. We conducted a visual evaluation of the commercial aquarobic wear of the five brands (ARENA, TURN, RALLY, RENOMA and ELLE) with the highest market share and selected three items: one-piece type (OPT); two-piece type (TPT) and whole-body type (WBT). These are the most worn types of aquarobic wear for each brand. The G4 showed the best results in appearance evaluation of the shoulder strap width, front neckline, armhole line, side hip line and short pants length in the OPT category. The TPT had better ratings as the shoulder strap was located in the center of the shoulder, and the front and the back necklines were not too deep. The five items of WBT clothing received similar ratings for each element, so it is considered that the advantages are evenly distributed. No single design was a clear favorite. Based on the above results, continuous research on the development of aquarobic wear that is more suitable and preferable for middle-aged women should be conducted.