• Current Research on Agriculture and Life Sciences
• /
• v.31 no.4
• /
• pp.286-294
• /
• 2013

Increasing concern for the health, well-being, and income of the people has expectedly brought continuous increase in the industrial value of medicinal plants in recent years as these are also used in foods and cosmetics. However, Korea's increased import of these products from China due to the FTA contract causes negative effects on its industrial value. In this regard, various measures for medicinal crop seed development and production, organization and expansion of circulation and forest land use deregulation are needed to promote the agricultural food industry including medicinal plants. As a measure, first, a database of medicinal plants should be built that can help to promote the national medicinal industry and the seed management system. Second, agricultural productivity should be enhanced via the development and supply of varieties of high quality medicinal plants. Third, there should be a good practice of the system maintenance for the production and supply of medicinal crop seeds. Fourth, production and distribution system of medicinal plants should be established by standardization of high quality seeds. Nowadays, the consumption pattern of medicinal crops is changing from direct ingestion to cosmetics, drugs, and food and this is expected to increase continuously. Consequently, the increased production of medicinal crops will support the development policy and the institutional improvement in response to this trend of the positive change of industrialization.

• Korean Journal of Environmental Agriculture
• /
• v.36 no.4
• /
• pp.249-255
• /
• 2017

BACKGROUND: Globally, mulberry (Morus sp.) is exploited for feeding leaf to silkworms in order to obtain silk fiber or for animal feedstock production. Also, mulberry fruit is known to a by-product that was produced from mulberry tree after harvesting leaves for silkworm rearing, as a yield and consumption of mulberry fruit was increased, it has been fixing to a newincome crop. Mulberry leaves and fruits are used for the health benefits of human beings. Mulberry contains various bioactive components, such as alkaloids and flavonoids. Mulberry flavonoids are an important part of the diet because of their effects on human nutrition. The flavonoids in mulberry leaf and fruit of 'Suhyang'(Morus alba L.) were determined. METHODS AND RESULTS: Flavonoids for mulberry leaf and fruit of 'Suhyang' were analysed using ultrahigh performance liquid chromatography coupled with diode array detection and quadrupole time-of-flight mass spectrometry (UPLC-DAD-QTOF/MS)technique. An UPLC-DAD-QTOF/MS system was used, and identification of mulberry leaves constituents was carried out on the basis of the complementary information obtained from LC spectra, MS ions, and MS/MS fragments. The mulberry leaf (16 flavonoids) and fruit (9 flavonoids) were isolated and analyzed from Suhyang using UPLC-DAD-QTOF/MS chromatogram. To the best of our knowledge, Quercetin 3-O-(6"-O-malonyl) glucoside and quercetin 3-O-rutinoside (rutin) was detected on the highest content in leaf and fruit, respectively and further research will be devoted to evaluate their biological activity. CONCLUSION: Obtaining information about the concentration of functional materials in mulberry leaves could contribute to the development and promotion of processed, functional products and offer possible industrial use of 'Suhyang', holding promises to enhance the overall profitability of sericulture.

• Journal of Food Hygiene and Safety
• /
• v.24 no.2
• /
• pp.128-135
• /
• 2009

Hand-washing is one of the most important factors in infection control and in preventing cross-contamination. The objective of this study was to investigate female university students' awareness of hand-washing, their hand washing practices, and the difference between their awareness and practices. A self-administered questionnaire survey and direct observation in restrooms were separately carried out in a university campus and over four weeks' period. A total of 97.4% of the survey respondents claimed to wash their hands after using toilet, and 98.2% of the observed students actually did so according to the unnoticed observational study. However, only 6.3% of the students who washed their hands in the direct observation washed for more than 10 seconds, although 46.4% of respondents in the survey reported that they usually wash their hands for more than 10 seconds. Among the observed students who washed their hands, only 0.9% used soap, and 0.9% washed four parts of their hands. Paper towel was the most common hand-drying method in the direct observation and also in the survey. Significant differences were found in duration, use of soap, part of washing, and hand-drying method between the questionnaire survey and the direct observation (p<0.05). This study indicates that there is a noticeable difference between the awareness of hand-washing and hand-washing practices among female university students. Further research should examine hand-washing practices of female university students in restrooms outside the university campus.

• Journal of Agricultural Extension & Community Development
• /
• v.16 no.2
• /
• pp.363-384
• /
• 2009

This study aimed at finding directions for Korean agriculture to establish a new paradigm of sustainable development. Various problematic issues and concerns in the environment necessitate the transformation of Korea's development paradigm from unconditional growth to "Green Growth" through new policies on green value and review of various advanced researches. In this research, the environment-friendly agriculture's problems, particularly in agribusiness were analyzed. Drawing from Michael Porter's Value Chain Analysis, this research developed a value chain model in agriculture that reflects the environment and the present situations. Future directions in the agriculture sector were also discussed. Korea realized food self-sufficiency through the green revolution in the early 1970s. However, a lot of problems have also occurred, including ground and water pollution and the destruction of ecosystems as a result of the overuse of pesticides and chemical fertilizers. In the late 1970s, the growing interest on environment-friendly agriculture led to the introduction of sustainable methods and techniques. Unfortunately however, these were not innovative enough to foster environment-friendly agriculture. Thereafter, the consumers' distrust on agricultural products has worsened and concerns about health have increased. In view of this, the Ministry of Food, Agriculture, Forestry and Fisheries introduced in December 1993 a system of Quality-Certified Products for organic and pesticide-free agri-foods. Although a fundamental step toward the sustainability of the global environment, this system was not enough to promote environment-friendly agriculture. In 2008, Korea's vision is for "Low Carbon Green Growth" to move forward while also coping with climate change. But primary sectors in a typical value chain do not consider the green value of their operations nor look at production from an environmental perspective. In order to attain sustainable development, there is a need to use less resources and energy than what is presently used in Korean agricultural and value production. The typical value chain should be transformed into a "closed-loop" such that the beginning and the end of the chain are linked together. Such structure allows the flow of materials, products and even wastes among participants in the chain in a sustained cycle. This may result in a zero-waste sustainable production without destroying the ecosystem.

• IMMUNE NETWORK
• /
• v.11 no.2
• /
• pp.107-113
• /
• 2011

Background: Metabolic disorders, including type II diabetes and obesity, present major health risks in industrialized countries. AMP-activated protein kinase (AMPK) has become the focus of a great deal of attention as a novel therapeutic target for the treatment of metabolic syndromes. In this study, we evaluated whether dietary aloe could reduce obesity-induced inflammation and adipogenesis. Methods: Male C57BL/6 obese mice fed a high-fat diet for 54 days received a supplement of aloe formula (PAG, ALS, Aloe QDM, and Aloe QDM complex) or pioglitazone (PGZ) and were compared with unsupplemented controls (high-fat diet; HFD) or mice fed a regular diet (RD). RT-PCR and western blot analysis were used to quantify the expression of obesity-induced inflammation. Results: Aloe QDM complex downregulated fat size through suppressed expression of scavenger receptors on adipose tissue macrophages (ATMs) compared with HFD. Both white adipose tissue (WATs) and muscle exhibited increased AMPK activation through aloe supplementation, and in particular, the Aloe QDM complex. Obesity-induced inflammatory cytokines (IL-$1{\beta}$ and -6) and $HIF1{\alpha}$ mRNA and protein were decreased markedly, as was macrophage infiltration by the Aloe QDM complex. Further, the Aloe QDM complex decreased the translocation of NF-${\kappa}B$ p65 from the cytosol in the WAT. Conclusion: Dietary aloe formula reduced obesity-induced inflammatory responses by activation of AMPK in muscle and suppression of proinflammatory cytokines in the WAT. Additionally, the expression of scavenger receptors in the ATM and activation of AMPK in WAT led to reduction in the percent of body fat. Thus, we suggest that the effect of the Aloe QDM complex in the WAT and muscle are related to activation of AMPK and its use as a nutritional intervention against T2D and obesity-related inflammation.

• Korean journal of food and cookery science
• /
• v.16 no.4
• /
• pp.328-335
• /
• 2000

This study was investigated the effect of application methods of frying oil on the physicochemical properties of frying oil in the school foodservice. Frozen pork cutlet was fried for this study. The most frequent application methods of frying oil in school foodservice and treatments of this paper were as follows ; (A) use the frying oil (36ι) just one day(200ea.$\times$ 5times) (B) reuse the used oil(A method) once more adding 50%(18 ι) fresh oil after 3 or 5 or 7 days (C) reuse the used oil(A method) once more after 3 or 5 or 7 days. The major fatty acids of fresh oil were linoleic acid, oleic acid, palmitic acid, and linolenic acid in order to content. The viscosity of frying oil was increased gradually by increasing the number of frying times and storage period of frying oil after once used. Both redness and yellowness of frying oil showed similar trend to viscosity. As a result of this study, the application methods of frying oil in the school foodservice influenced on the physicochemical properties of frying oil, but acid and peroxide value were under the safety level of frying oil prescribed in the Health Social Affairs Ministry.

• Food Science and Preservation
• /
• v.16 no.5
• /
• pp.714-718
• /
• 2009

Polyphenols are naturally occurring antioxidants and play many important roles in human health. Grape leaves have not yet been reported to contain the antioxidants. In this study, the physicochemical properties of powders from young grape leaves, obtained after hot-air or vacuum freeze drying, were analyzed. Weight loss rangedfrom 76-80%, but no difference was found between samples prepared by hot-air orvacuum freeze drying. The L-, a-, and b- values of grape powder all fell upon hot-air drying. Quercetin, resveratrol, catechin, and epicatechin were detected in all cultivars. The contents of the four polyphenols were generally higher in powders obtained by vacuum freeze dryingthan in those prepared by hot-air drying, indicating that vacuum freeze drying is better for optimal preservation of polyphenols. None of three polyphenols assayed was found in some cultivars or after certain drying treatments. Based on physiochemical properties, our findings suggest that powders obtained after vacuum freeze drying are optimal for industrial use.

• Korean Journal of Medicinal Crop Science
• /
• v.2 no.1
• /
• pp.14-19
• /
• 1994

Elephant food(Amorphophallus konjac K.) have been utilized its tubers in workedmaterials for a health and diet food. The author supposed that it was increased the area of cultivation and demand. This experiments were conducted to select the proper covering material during winter in order to increase yield of tubers and decrease input by 2 year's continuous cultivation, also to verified ability of seed germination and to measured efficiency of photosynthesis of plant. The proper covering materials for wintering were rice straw and rice hull. These materials were covered at 5 cm thick and at field was promoted according to emergence appearing after winter. The yields were 5,790kg /10a at 4,730kg /10a, respectively. Yield increase was 120% and 80% than that of control. The seeds collected at August 22 were germinated about 84 percent, and it was not necessary to treatment of low temperature or germination-accelerated chemicals. The widest leaf area was ranged $1,218-1,438cm^2$ at October 20 and was varied. The efficiency of photosynthesis was highest at 65-95 days after leaf emergence. The line of broad leaf and high photosynthetic efficiency per unit area was greater compare with yield. Therefore, it was supposed that these characteristics will use a marker for selection for high-yielding lines.

• Korean Journal of Food Science and Technology
• /
• v.41 no.4
• /
• pp.405-412
• /
• 2009

The purpose of this study was to determine the inhibitory effect of a glycoprotein isolated from Cudrania tricuspidata Bureau (CTB glycoprotein, 75 kDa) on immunoglobulin E (IgE)-induced allergic inflammation in RBL-2H3 cells. This experiment evaluated the production of intracellular reactive oxygen species (ROS), the activities of mitogenactivated protein kinase (MAPK), transcription factor (c-jun), and cyclooxygenase (COX)-2, and histamine release in cells. The results showed that the CTB glycoprotein inhibited histamine release and COX-2 expression induced by IgE in the cells. The CTB glycoprotein also had suppressive effects on the expressions of ERK1/2, p38 MAPK, c-jun, and the production of intracellular ROS in IgE-treated RBL-2H3 cells. The activities of c-jun and COX-2 were collectively blocked by ERK1/2 inhibitor (PD98059) and p38 MAPK inhibitor (SKF86002), respectively. Hence, we speculate that CTB glycoprotein might be a component with potential use in the preparation of health supplements for the prevention of allergic diseases.

• The Journal of Korean Academy of Sensory Integration
• /
• v.17 no.3
• /
• pp.1-13
• /
• 2019

Objective : The purpose of the present study is to investigate the effects of Ayres Sensory Integration (ASI^®) with play-centered oral defensiveness reduction activities on the oral sensitivity of a child with oral defensiveness. Methods : The subject was a three-and-a-half year-old boy with a developmental delay. The study was performed from August to September, 2018. The research design used in this study is the design for single-subject research. The experimental period was divided into three phases: three sessions for the initial baseline phase (A), 15 sessions for the treatment phase (B), and three sessions for the final baseline phase (A'). Ayres Sensory Integration (ASI^®) with active oral play was conducted in the treatment phase. The Measuring Oral Sensitivity in Practice was used to test changes in the oral sensitivity level. The Korean Children's Eating Behavior Inventory and Food Checklist were used to assess the difference in functions related to oral sensitivity before and after the intervention. Results : In comparison with the baseline phase, the Measuring Oral Sensitivity in Practice and Korean Children's Eating Behavior Inventory were improved during the treatment phase, but the Food Intake checklist score was not changed after the treatment phase. Conclusion : The use of Ayres Sensory Integration (ASI^®) with active oral play produced positive results and reduced the child's oral sensitivity and eating problems.