• Food Engineering Progress
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• v.15 no.2
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• pp.182-187
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• 2011

A proteolytic lactic acid bacterium was isolated from Korean traditional fermented foods. The isolate BV-26, which had a protease activity (24 U/mg-crude protein), was identified as Lactobacillus plantarum by the API 50CHL kit and 16S rDNA analysis (99.9% of homology), and named as L. plantarum BV-26. Cell growth and protease activity of L. plantarum BV-26 was determined in MRS broth using 5L jar fermentor at $30^{\circ}C$. The maximum growth of L. plantarum BV-26 was reached at 18 hr in MRS broth, while protease activity of BV-26 was detectable at 12 hr and the highest activity was obtained after 16 hr cultivation. Therefore, we expect that the proteolytic lactic acid bacteria, L. plantarum BV-26, may be used as a starter for the fermentation of animal feed. Especially, the fermentation of soybean meal with the strain can be applied for improving feed utilization.

• Journal of Life Science
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• v.29 no.8
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• pp.846-853
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• 2019

Phytochemical compounds of Ligusticum striatum Makino are used as traditional medicinal herbs in Asia. These compounds are reported to have pain relief and antioxidant activities in gynecological and brain diseases. In this study, we investigated the antioxidant effects of Ligusticum fermented ethanol extract from Lactobacillus plantarum BHN-LAB 129 isolated from Kimchi, a Korean traditional food. The total polyphenol and total flavonoid contents increased by about 116.2% and 281.0% respectively, in the fermented Ligusticum extract as compared with those in the nonfermented Ligusticum ethanol extract. Superoxide dismutase-like (SOD), DPPH radical scavenging, ABTS radical scavenging, and reducing power activities increased by around 139.9%, 199.6%, 301.0%, and 137.1%, respectively, in the fermented Ligusticum ethanol extract as compared with these parameters in the nonfermented Ligusticum ethanol extract, respectively. In conclusion, the fermented Ligusticum ethanol extract with L. plantarum BHN-LAB 129 was effective in increasing the antioxidant effects. The bioconversion process in this study points to the potential of using Ligusticum to produce phytochemical-enriched natural antioxidant agents with high added value. The findings may prove useful in the development of improved foods and cosmetic materials.

• Journal of the Korean Society of Food Culture
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• v.16 no.3
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• pp.195-202
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• 2001

This study was performed to investigate the pattern of health food usage of the adults by food lifestyles pattern in contemporary Seoul. This study views health food consumption as a cultural practice in which people produce (and reproduce) diverse social relationships and cultural meanings. It also identifies food lifestyles and health food usage pattern of Korean adult in Seoul. This topics were discussed based on field research data collected by nutritional survey with questionnaire. To identify the relationships between pattern of health food and food lifestyles, 503 men and 437 women aged 18 to 65 years were divided into 5 groups of food lifestyles : Health Eaters, In-a-Dither, Traditional Eaters, Conscientious and People on the Go. As a substantial percentage of the subjects were used some kinds of nutrients supplement. The higher the age and family income were, the higher the percentage of health food usage was. There was the significant difference between sexes in usuage of health food. Health food usage was higher in the food lifestyle pattern of Health Eater than other food lifestyles.

• Food Science and Biotechnology
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• v.17 no.3
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• pp.594-597
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• 2008

Natural products have been used to treat many neurological illnesses such as Alzheimer's disease. In the present study, the effects of the water extract of smoke-dried skipjack tuna (WSST), which is used as a traditional seasoning in Japan, as well as its fractions on acetylcholinesterase (AChE) inhibition in vitro and on memory in scopolamine-induced amnesia mice in vivo were evaluated. Bio-Rad P-2 gel permeation chromatography revealed the presence of 7 peaks and AChE significantly inhibited peak 3 and 5. When in vivo behavioral studies were conducted, a passive avoidance test revealed that treatment with 50 and 100 mg/kg WSST as well as with fraction 3 and 5 improved the loss in memory retention induced by scopolamine. These results suggest that skipjack tuna extract and its fractions improve memory deficits and that these substances are suitable for use in healthy foods designed to improve memory deficits induced by aging and Alzheimer's disease.

• Journal of the East Asian Society of Dietary Life
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• v.23 no.3
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• pp.273-281
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• 2013

The study is being conducted to investigate the perceptions and preferences of the Korean kimchi by the Chinese international students in Jeonbuk area. Self-administered questionnaires were collected from 197 male (48.9%) and 203 female (51.1%) students. Statistical data analysis is being completed using SPSS v. 12.0. Approximately 95% of Chinese female and 91% of male students know about kimchi before coming to Korea through the Korean movies and dramas. The perceptions for kimchi according to the residence period showed a significantly difference 'kimchi is a nutritious and health food' (p<0.05), 'kimchi has good taste but too hot to eat' (p<0.05), and 'Kimchi is difficult to eat because of the smell' (p<0.05). Approximately 52% of Chinese female and 44% of male students consumed kimchi once or twice a day. The most popular form of kimchi among the 13 varieties was baech kimchi. Chinese female students preferred the 'kkakdugi' (p<0.05), 'chonggak kimchi' (p<0.05), and 'young radish kimchi' (p<0.05) more than the male students. The most liked reason was the 'refreshing taste' (44.8%) whereas the most disliked reasons were 'unfamiliar with eating kimchi' (28.7%) and 'sour taste' (24.2%). Approximately 85% of Chinese female and 60% of male students would like to experience making kimchis by themselves. Extended kimchi consumptions for Chinese answered 'not too fish-like smell' (36.0%), 'not too overly-ripe' (34.5%), 'not too sour' (25.4%), and 'not too hot' (25.4%). Therefore, in order to improve the awareness for kimchi among Chinese students, we need to relate kimchi with the taste of Chinese traditional foods.

• Journal of Nutrition and Health
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• v.44 no.6
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• pp.488-497
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• 2011

Oxygen is necessary to sustain life, yet cellular oxygen metabolism creates destructive elements called free radicals. Free radicals are chemically unbalanced and carrying free electrons that can damage molecules, potentially damaging the cell itself. For this reason, many antioxidant products, including supplements and functional foods, are being developed. In particular, natural products are rich sources of pharmacologically active compounds. The purpose of this study was to investigate the antioxidant effects of target biomaterials in Korean traditional spices such as diallyl sulfide (DAS), capsaicin (CAP), and gingerol (GGR), and to investigate the response of the antioxidant defense system to oxidative stress by hydrogen peroxide ($H_2O_2$) compared to sulforaphane (SFN) in HepG2 cells. After the analysis of the cell viability using Cell Counting kit-8 (CCK-8) assay, we determined that the optimum levels were $200{\mu}M$ DAS, $25{\mu}M$ CAP, $50{\mu}M$ GGR, and $12.5{\mu}M$ SFN. Antioxidant enzymes were measured and protein expression was detected by Western blotting. All treatments showed a significant decrease in antioxidant enzyme activity such as superoxide dismutase, catalse, and glutathione peroxidase in HepG2 cells. Additionally, DAS, CAP, GGR and SFN increased the antioxidant system-related transcription factor Nrf2 which was found to be regulated by the activation of MAPK-JNK in this study. In conclusion, these results indicate the protective effects of DAS CAP, GGR, and SFN against $H_2O_2$-induced oxidative stress.

• Journal of the East Asian Society of Dietary Life
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• v.23 no.1
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• pp.12-22
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• 2013

This study investigated the recognition and preference of a chicken menu according to the age of adults in the Jeonbuk area. Self-administered questionnaires were collected from 394 adults (male 55.3%, female 44.7%) residing in the Jeonbuk area. Descriptive and comparative statistical data analysis was completed using SPSS v. 12.0. The frequency of consumption of chicken-containing foods for the younger group (20~30 years old) was significantly higher than the frequency of older groups (over 40) (p<0.001). The younger group also consumed chicken food through a delivery service, whereas the older group consumed chicken through delivery and self-cooking. Approximately 50.0% of the older group preferred the chicken leg whereas 38.1% of the younger group preferred the chicken breast (p<0.001). The most highly recognized chicken menu items, among 36 chicken menus, were Samgyetang (2.93), chicken dori-tang (2.93), and fried chicken (2.93). The older group knew about a chicken menu made by traditional cooking much more than the younger group. The most highly preferred chicken menu item was spicy fried chicken (4.18). The preference for Western-style chicken menu (e.g. Cajun chicken salad, chicken sandwich) was significantly higher in the younger group than the older group (p<0.001, p<0.05). Therefore, to develop a new chicken menu, the consideration of favorite chicken parts and an age-based menu is necessary.

• International Journal of Industrial Entomology and Biomaterials
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• v.40 no.1
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• pp.16-21
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• 2020

Humans use insects as food and traditional medicine for many years. Hemolymph is the circulating fluid of insects and is a key component of their immune system. However, limited information is available regarding hemolymph identification, development, and differentiation, as well as the related cellular immune responses. In a previous study, hemolymph extracts prepared from Bombyx mori larvae were found to exert anti-inflammatory effects. In this study, we aimed to identify and compare the antioxidant activity of immune-challenged and unchallenged B. mori hemolymph extracts in vitro. For this purpose, human epithelial Caco-2 cells were first exposed to oxidative stress and then treated with various concentrations and incubation times of either immune-challenged or unchallenged B. mori hemolymph extracts. Next, we determined the effect of treatment on the relative expression of GPX-1, SOD-1, and SOD-2 antioxidant marker genes. We found that the expression rates of the three marker genes were markedly higher at a immune-challenged hemolymph extract concentration of 80 ppm compared to those at other concentrations, and the antioxidant effects were enhanced after treatment for 48 hr. Thus, B. mori hemolymph extracts showed antioxidant activity within the limited time and dose. Especially, the immune-challenged B. mori hemolymph extracts showed higher the antioxidant activities than unchallenged one. The activity of silkworm hemolymph extracts could facilitate the development of new types of functional foods, feed additives, and biomaterials with antioxidant properties.

• Journal of the Korean Society of Food Science and Nutrition
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• v.11 no.3
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• pp.29-33
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• 1982

Saengran, one of the traditional Korean foods, is made from hot taste-removed ginger. It's taste depends upon the recipe and maker's skill however, no standard recipe is established in the literature. In this study, the recipes in the literature were evaluated to find out the best recipe for Saengran. The best method for removing hot taste of ginger was the extraction of ginger in a boiling water for 20 minutes The best formular for Sangran was hot taste removed ginger 100g, sugar 77g, honey 57g, and water 154g. The optimum boiling time was 55 minutes with an electric heater. (100V, 600W)

• Journal of Korean Academy of Nursing
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• v.27 no.4
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• pp.961-974
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• 1997

The ZZimzilbang is a room where many women eagerly go due to the special meaning women give to it related to their health. It is a different type of sauna room which maintains low degree of temperature, consisting of an Ondol room(Korean under-floor heating system, hypocaust) built with mineral stone radiating ultrared rays. Even though many women mention that they utilize it for health, there is no precise evidence of the effects on their health. This ethnographic study sought to define the phenomenon from the perspective of the women who experienced the ZZimzilbang. A convenience sample of 27 women was interviewed during a 15 month period from December 1995 to July 1997 in 12 ZZimzilbangs located in Seoul, Korea. The mean ages of the women 57.3 years ; seventeen women were housekeeper and only eight women had job : twenty women were married and three women among them were widows. The main reasons women patronize the place are : for mitigation and healing of physical signs and symptoms : composure ; safe lodging and boarding : control of outward appearance : control of health ; meeting and fellowship with friends : and custom. The outcomes of the utilization of the place were : mitigation of physical signs and symptoms : psychological tranquility : cosmetic and diet ; good use of spare time : and utilization of services provided there. Most women who visited ZZimzilbang for relief of physical signs and symptoms strongly mentioned a correlation to inadequate Sanhujori, the traditional postpartal and postabortal care for woman. Some of specific kinds of services provided in that place were alternative therapy such as acupuncture, negative cupping, finger-pressure, mugwort steam and various kinds of massage including massage of blood vessels that are influenced by Oriental medicine ; health education of breathing such as abdominal breathing or Danjeon(단전호흡) : and selling of many things including health foods, drugs for osteoporosis, and eutrophics. This study suggests that professional caregivers should further study this phenomenon for the development of adequate care of women with a resulting important in their quality of life.