• 한국식품과학회지
• /
• 제52권5호
• /
• pp.529-537
• /
• 2020

본 연구에서는 재래누룩을 사용한 막걸리의 미생물 군집을 차세대 염기서열 분석기법(NGS)을 활용하여 조사하고, 미생물 군집이 막걸리의 품질에 미치는 영향을 구명하고자 효모 첨가에 따른 품질특성을 확인하였다. 발효 스타터로 효모의 첨가는 재래누룩 막걸리의 미생물 군집 분포에 영향을 주어 결과적으로 막걸리의 품질 차이를 나타냈다. 무첨가구의 경우 발효 초기의 진균류는 Saccharomycopsis fibuligera가 대부분이었고, 세균류는 Pediococcus pentosaceus, Weissella confusa, Pantoea vagans의 증식으로 인하여 총산 및 젖산 함량이 높게 나타났다. 첨가구는 발효 시작 전부터 Saccharomyces cerevisiae가 우점하여 알코올 생성 속도가 빠르고, 발효 초기의 높은 알코올 농도로 인해 재래누룩에서 기인한 젖산 생성 bacteria의 생육을 억제하는 것으로 나타났다. 따라서 재래누룩으로 막걸리를 제조할 때, 알코올 생성능이 우수한 효모의 첨가가 막걸리 시어짐의 원인이 되는 젖산균의 성장을 억제함으로써 산미를 낮추고 제품의 균일성을 확보할 수 있을 것으로 판단된다.

• 한국식품과학회지
• /
• 제46권4호
• /
• pp.432-437
• /
• 2014

본 연구는 국내 외에서 생산된 다양한 벌꿀에 대한 품질특성을 비교 분석하고, 국내 유통 벌꿀의 과학적 벌꿀 관리를 위한 기초 자료를 마련하고자 수행되었다. 이를 위한 분석은 수집된 벌꿀을 대상으로 하여 안정탄소동위원소비율, 수분함량, 전화당 및 자당 함량, HMF 함량을 측정하였다. 안정탄소동위원소비율은 밀원에 따라 -25.18 - -12.60‰ 범위로 $C_4$ 식물군인 사양꿀을 제외하면 모든 벌꿀이 순수벌꿀로 유통되었다. 수분함량은 18.12-19.70% 범위로 식품공전 및 Codex 기준치에 충족하였다. 벌꿀의 당 함량은 fructose의 경우 36.10-43.94% 범위, glucose의 경우 22.61-31.91% 범위로 전화당 함량이 64.89-72.79% 범위를 나타내어 기준치에 충족하였다. Sucrose 함량 역시 1.56-4.75%로 기준치에 모든 벌꿀이 충족하였다. HMF 함량은 국내산의 경우 0.11-48.85 mg/kg 수준, 수입산의 경우는 4.10-78.66 mg/kg 수준을 나타내어 기준치에 적합하였다. 결론적으로 국내 유통 벌꿀을 수집하여 품질을 비교 분석한 결과, 모든 벌꿀이 우리나라 식품공전상 규정하고 있는 기준치에 충족한 결과를 나타내었지만, 긴 유통과정을 거치는 수입산 벌꿀의 경우 HMF 함량이 4.10-78.66 mg/kg 수준으로 국제기구인 Codex의 기준치인 40 mg/kg 이하에 일부 벌꿀이 초과하였고, 식품공전 상 기준치인 80 mg/kg 이하에 근접한 결과를 나타내었다. 따라서 국내에 유통 판매되는 벌꿀의 품질수준을 높이기 위해서는 당 및 HMF 함량 등 품질지표가 될 수 있는 구성성분에 대한 국제적 수준 또는 국내 실정에 적합한 벌꿀의 규격 관리가 마련되어야할 것으로 판단된다.

• 한국학교보건학회지
• /
• 제1권2호
• /
• pp.86-117
• /
• 1988

The purpose of school lunch service programs (SLPs) is to provide school children with nutritious meals each day, to assist them in improving their mental and physical development, to make them understand the basic knowledge needed for healthy daily living throughout their lives with sound nutritional habits, and further, to enhance the national health status as well as the individual. The major purpose of this study is to describe the history and current status and promotional plans in Korea's SLSPs to improve the nation's health status. The major findings of this study are as follow: 1) The progression of the SLSPs can be devided into four major periods: Relief (1953-1972), Self-supportive (1973-1977), System-establishment (1973-1983), System-development(1984- ). 2) As result of the implementation of SLSPs in Korea, many positive effects have been found in school education, notably in the field of physical growth, social development and personality cultivation. 3) This study deals with a more detailed assessment with regard to the effects of the program on school education activities and the improvement of nutritional habits in the family. Although it is limited and not yet complete, the program implementation has contributed to the improvement in children's food-intake habits, understanding of food, and manners, and increased sanitary consciousness. It has also affected of parent's concerns and attitudes towards the improvement of daily meals as well as national eating patterns, and eventually provided motivation for increased farm production of nutritious food stuffs and reasonable food consumption. 4) The SLSPs does have its stare of problem such as an unsatisfactory budget, lack of understanding of the program by school personnel and parents. However, there is no doubt that the SLSPs should be carried out effectively for better health, and especially for the growth and development of the children. Finally, the problems and promotive Plans of the SLSPs can be approached by aspects of the administrative, financial and operational systems. These system have to coordinate with relevant authorities to expand participation in the program for the successful implementation of the SLSPs. The eventual objective this study is to propose ways and means for mobilizing every available element in the effort to attain the goals of educating and training healthy and competent personnel manpower, stabilizing the demand and supply of food and the ensuring adequate coordination of national food production and consumption.

• 복식
• /
• 제56권4호
• /
• pp.134-147
• /
• 2006

As modern society set in, lifestyle has been changing largely; leisure activity has been expanded and family activity became important. Changes in the lifestyle caused big changes even in fashion industry. Instead of suits, coordination using clothes easy to wear was extended and the need of family look was also raised. Despite the need and marketability of family look, however, family look style clothes depend on the manufacture by orders on the Internet and few brands have been developed unlike the activation of family restaurants or family fast-food restaurants. Thus, this study examined design of family look style T-shirts applying Korean image as one of measures to activate fashion brands of family look. This study purposed to find out self-conceit and identification of our culture by recreating family look as cultural tourism products applying Korean traditional patchwork wrapping-clothes and natural dying techniques and to globalize the products as high value-added ones containing differentiated Korea-style originality. In particular, as Interest in natural dying has been raised because of serious environmental problems and extension of wellbeing culture, products applying natural dying have been developed actively. At this point of time, the development of family look style T-shirts applying natural dying will contribute largely to planning globalization of our brands by developing products with more polished and globalized design.

• Biomolecules & Therapeutics
• /
• 제11권3호
• /
• pp.183-189
• /
• 2003

General phannacological properties of IH-901, a new pharmacological composition as an intestinal metabolite formed from ginseng protopanaxadiol saponins, were investigated in experimental animals administered orally and in vitro test system. IH-901 had no effects on general behavior, pentobarbital sleeping time, spontaneous motor activity, motor coordination of mice, normal body temperature, chemoshock produced by pentylenetetrazole and writhing syndromes induced by 0.8％ acetic acid at the dose of 25 and 250 mg/kg. Gastric secretion of rats and intestinal motility in mice were not also influenced by the administration of IH-901 at doses of 25 and 250 mg/kg. IH-901 (25 and 250 mg/kg) did not change the mean arterial blood pressure and heart rate in conscious rats. IH-901 had no effect on the respiratory rate at the same doses when it was given to anesthetized rats. In in vitro experiments, IH-90l at the concentration of 25$\mu\textrm{g}$/L did not show any direct effect and inhibitory or augmentative action on the histamine-or acetylcholine-induced contractions in the isolated ileum of guinea-pig. Based on these results, it was concluded that IH-901 did not induce any adverse effects in experimental animals.

• 한국작물학회지
• /
• 제47권1호
• /
• pp.62-67
• /
• 2002

An efficient system of rice microspore culture could contribute to the production of genetically modified rice. The microspores were isolated by mechanical or shed methods. The number of microspores per 100 anthers isolated at uninucleate stage was higher than (or similar to) those at binucleate stage in isolation method with pestle or spatular, but microspore divisions were not easily observed on both stages. On the other hand, pollen division in shed pollen culture was observed more frequently at uninuclear than at binuclear stage. Cold pretreatment at 1$0^{\circ}C$ for 10 days resulted in the best multicellular division to produce microcalli at 12.5% efficiency in shed microspores. Heat shock at 33$^{\circ}C$ for one hour before or after pollen shedding enhanced cell division and callus formation. Out of twelve green regenerants, two were haploids and ten were diploids based on the chromosome analysis of root tips. The size of stoma was 12$^{m}$ m in haploids and 15 ${\mu}{\textrm}{m}$ in diploids determined by scanning electron microscope (SEM).

• 한국치위생학회지
• /
• 제13권1호
• /
• pp.129-135
• /
• 2013

Objectives : The purpose of this study was to attempt to lay the foundation for the development of oral health programs geared toward promoting the oral health of low socioeconomic class children. Methods : The subjects of this study have been investigated for the use of children to 96 local children's center. Questionnaire for research purposes are described in more detail under the coordination of child care teachers to students, students to be able to record. The survey was conducted at the Health center. Analyzed the data collected by SPSS 18.0. Results : The findings of the study were as follows: The children were influenced by habits of having a snack in dental caries experience. Higher intake of bread and a lot of children more probability of dental caries experience. I've found a lot of sweet-food intake eleven cakes or fruits and vegetables that children prefer higher dental caries experience was low. Conclusions : Education on dietary behavior for low-income children was necessary because of the high correlation of the relationship between dietary habits and dental caries and diet.

• Toxicological Research
• /
• 제13권1_2호
• /
• pp.175-182
• /
• 1997

LBD-001, a recombinant human interferon $\gamma$ produced by genetically engineered yeast as a host system, was intravenously administered to pregnant female rats (Sprague-Dawley) from day 17 of gestation to day 21 of lactation at dose levels.of $0.35 \times 10^6$, $0.69 \times 10^6$, and $1.38 \times 10^6$ I.U./kg/day. In vasopressin-treated group, vasopressin (5 I.U./kg/day) was intravenously injected only for 5 days of perinatal period. (1) No signicant changes by the treatment of LBD-001 were observed in the body weights, food and water consumption, feeding and nurshing behaviors, and the weights of main organs of mother rats. In vasopressin-treated group, no significant changes were observed except the decrease in the food consumption on day 18 of gestation and one case of abnormal offspring with bleeding spots on the skin. (2) No significant changes in the body weights, survival rates, locomotor activity, emotional development. and the motor coordination of offsprings (F1) by the treatment of LBD-001 were observed except the fact that increase of ambulation in the female offsprings of LBD-001 ($0.69 \times 10^6$ or $1.38 \times 10^6$ I.U./kg/day)-treated groups and the increase of rearing in the males of LBD-($1.38 \times 10^6$ I.U./kg/day)-treated group, and the increase of the weight of liver and ovaries in the female offsprings in the LBD-001 ($1.38 \times 10^6$ I.U./kg/day)-treated group were observed. Altogether, the results show that LBD-001 at the dose of $1.38 \times 10^6$ I.U./kg/day or less does not significantly affect the mother rats and their offsprings (F1) except the minor influences when treated during the perinatal and postnatal period.

• 한국약용작물학회지
• /
• 제22권6호
• /
• pp.442-448
• /
• 2014

The major objective of this study was to investigate the usability as cultivar for processing of new Citrus hybrid 'Hamilgam'. We investigated various antioxidant activities, such as DPPH radical, ABTS radical, Hydroxyl radical and Superoxide anion radical effect, along with total polyphenol content and total flavonoid content of Citrus hybrid 'Hamilgam', C. unshiu, C. natsudaidai. The total polyphenol content and total flavonoid content were the highest in the Hamilgam. The major flavonoids of Hamilgam and Natsudaidai were naringin and neohesperidin, and those of Unshu were narirutin and hesperidin, as determined by HPLC. Especially, the neohesperidin content of Hamilgam showed much higher (100 times over) than that of Unshu. However, the aglycone form was not found. DPPH and ABTS radical scavenging activities were the highest in Hamilgam peels. Hydroxyl radical scavenging activity was high in the order of Unshu, Hamilgam and Natsudaidai. Superoxide anion radical scavenging of 3 cultivars peels displayed low activities compared to DPPH and ABTS radical scavenging. Based on these results, Hamilgam peel extracts possess antioxidant activities and may thus serve as potential sources of functional food, cosmetic products, etc.

• 한국식생활문화학회지
• /
• 제34권6호
• /
• pp.771-778
• /
• 2019

This study investigated the effect of temperature deviation on the water-holding capacity, tenderness, lipid oxidation, and color stability of Korean Hanwoo (韓牛) beef during long-term aging. The striploins (M. longissimus lumborum) were aged for 56 days at 2±1℃ (T1), 2±2℃ (T2), or 2±3℃ (T3). Drip loss and cooking loss were higher (p<0.05) in T3 than in T1 on day 56. The Warner-Bratzler shear force value was similar for all treatments during aging times. On day 56, the content of 2-thiobarbituric acid reactive substances was higher (p<0.05) in T3 as compared to T1. The CIE L^* and b^* values were similar for all treatments, but the a^* value was lower (p<0.05) in T3 than in T1 on the last day. These findings indicate that high temperature deviation adversely affects the water-holding capacity, lipid oxidation stability, and color stability of Hanwoo beef during long-term aging.