• Proceedings of the Korea Society of Poultry Science Conference
• /
• 2002.11a
• /
• pp.133-135
• /
• 2002

This study was designed to investigate the effects of dietary isoflavones(IF) on bone ash content in young chicks. Daidzein(DE) and genistein(GE), aglycone forms of IF, were added to purified-type basal diet containing calcium at 50% of NRC requirement. The two IF at two different levels(1.0 and 2.0 mM) were added to the diets prepared to be very low in IF using soy protein concentrate(SPC) as the only source of protein. The diets Including control with no IF-added were fed for three weeks. One hundred, Hy-Line Brown, day-old male chicks were divided into five dietary groups with four replicates and five chicks per replication. General performances of the chicks were not affected by the dietary treatments. Serum alkaline phosphatase(ALP) activities, an indicator for bone formation, of the birds fed DE diet were lowered compared to those fed GE and control diets. However, the levels of IF did not show any differences in the responses. Bone ash o/o of birds fed the IF diets were significantly increased compared to that of control group (p〈0.05), and, however, not affected by levels of IF in diets. Bone breaking strength measured with an Instron appeared to be equivalent among the birds of all treatments. The observations that equivalences in bone ash o/o and bone breaking strength even with lowered activity of ALP by DE ingestion compared to GE suggest a necessity of further investigation.

• Journal of the Korean Society of Food Science and Nutrition
• /
• v.40 no.10
• /
• pp.1384-1390
• /
• 2011

Chrysanthemum indicum L. (Asteraceae) is a common traditional herbal medicine used for the treatment of inflammation, hypertension, and respiratory diseases due to its strong antagonistic function against inflammatory cytokines. In this study, the effects of Chrysanthemum indicum L. extract (CIE) on the function of osteoblastic MC3T3-E1 cells and the production of local factors in osteoblasts were investigated. CIE (100 ${\mu}g/mL$) significantly increased the growth of MC3T3-E1 cells and caused a significant elevation of alkaline phosphatase (ALP) activity, and the deposition of collagen and calcium in the cells (p<0.05). The effect of CIE in increasing cell growth, ALP activity, and collagen content was completely prevented by the presence of 1 ${\mu}M$ tamoxifen, suggesting that CIE's effect might be partly involved in estrogen-related activities. These results indicate that the enhancement of osteoblast functionality by CIE may prevent osteoporosis and inflammatory bone diseases.

• Journal of Nutrition and Health
• /
• v.16 no.4
• /
• pp.233-242
• /
• 1983

This study was attempted to investigate Korean women divers' nutritional status and the effect of their putting on rubber diving suits on the energy balance. For these investigations, measurements of nutrients intake, energy intake and energy consumption during diving work were performed. This study was conducted in summer and winter of 1981. Nutrition survey was carried out by interviewing each individual and the energy consumption during diving work was calculated from the extra oxygen consumption over the resting value and the change in mean body temperature in sea water. The results obtained were summarized as follows : 1) In summer, the divers' dietary intake were 2,454 Kcal for energy, 69g of protein, 16g of fat 578mg of calcium, 11mg of iron, 526 Retinol Equivalent of vitamin A, 1.1mg of thiamin, 1.3mg of riboflavin, 19mg of niacin and 50mg of ascorbic acid. These results showed that the intakes of energy, thiamin, riboflavin, niacin and ascorbic acid were higher than the Korean Recommended Dietary Allowances (RDA). Whereas in winter, the nutrients intake except iron, riboflavin, and vitamin A were higher than the RDA. 2) The energy consumption, measured by oxygen consumption and changes in body heat content, used in diving work were 260 Kcal per day in summer and 370 Kcal per day in winter. These values were about 600-700 Kcal per day lower than 1960s' 1,000 Kcal per day. The divers' energy intake were 2,454 Kcal per day in summer and 2,487 Kcal per day in winter. These data were about 550 Kcal per day lower than 1960s' intake. Since divers have worn the rubber diving suits, the energy consumption decreased as compared with the energy consumed while wearing cotton suits. And this seemed to be resulted in decreasing the energy intake. This result also showed that the balance between energy expenditure and energy intake were kept. 3) The mean subcutaneous fat thickness of divers and nondivers were 8.85 and 9.03 mm respectively. These values were as high as four times as those of 1960s'. The total body fat contents wers 25.8 percent in both diver and nondiver groups and showed an increase as high as twice as compared with 1960s' values.

• Korean journal of food and cookery science
• /
• v.10 no.4
• /
• pp.363-368
• /
• 1994

The study was carried out to investigate the proximate composition, amino acids, dietary fiber, ascorbic acid and minerals contents of seven edible wild vegetables; an Evening Primerose($S_1$), a Spiderwort($S_2$), the Flower of a Convolvulus($S_3$), So Ru Jaeng Yi($S_4$), Shoe Bi Rum($S_5$), O Yi Pul($S_6$), Jip Sean Na Mul($S_7$). Results as summarized as follows: 1. The moisture contents of samples were determined as 64.43~88.30% The largest amount of them was contained in a Spiderwort($S_2$) and the smallest was in a Jip Sean Na Mul($S_7$), 2. The crude protein contents of samples were determined as 2.71~8.10%. The largest amount of them was contained in a O Yi Pul($S_8$), the smallest was in the Spiderwort($S_z$). 3. A relatively large amount of total amino acids were determined in samples. The abundant amino acids existed in the samples were Glutamic acid(10%), Lysine(8%), Leucine(8%) and the content of Methionine was very low. The highest level of them was found in the Convolvulus($S_3$), 4,419.6 mg% and the lowest was Shoe Bi Rum($S_5$), 2,393.1 mg% 4. The Ascorbic acid contents of samples was determined as 55.99~31.8O mg. The highest level of them was found in the Jip Sean Na Mul($S_7$) and the smallest was in the Primerose($S_1$) 5. The mineral contents of samples were determined. A relatively large amount of K, Ca and Mg were found in the samples. Especially the level of Iron was higher than that of any other vegetables. 6. The contents of dietary fiber were determined as 31.8~79.9%. The highest level of them was found in the Convolvulus($S_3$) and the lowest was in the Spiderwort($S_2$). The highest level of them was found in the Convolvulus($S_3$) and the lowest was in the Spiderwort($S_2$). From the above mention, we can say that the contents of protein, fat, fiber, total amino acids and iron were abundant in wild grasses than that of any other wild and cultured vegetables. The contents of ascorbic acid, potassium, calcium and magnesium were similar and the moisture is significantly low compared with any other vegetables.

• The Korean Journal of Food And Nutrition
• /
• v.13 no.5
• /
• pp.490-505
• /
• 2000

Mugwort (Artemisia sp.) abounds on hedgebank, waysides and grassy places in most part of Europe, Asia and Northern America. This herb has long been associated with witch-craft and magic as a protective charm. Mugwort has been a value as a foodstuff of relieving famine. Proximate composition of mugwort is similar to green vegetables, but it has high level in calcium, potassium and vitamin A content. For medicinal uses, the leaves are harvested twice in spring and autumn before the plant comes into flower and are dried for later uses. Aqueous or organic solvents extracts often have physiologically active constituents. Some extracts of mugwort include cineol, thujone, borneol, camphor, caryophyllene, coumarin, cubebene, pinene, linalool, absinthin etc. The dried leaves have traditionally been used as an antihelmintic, anti-inflammatory, antispasmodic, antitumor, hepatic stimulant, chologogue, emmenagogue, febrifuge, stomachic, tonic etc. Mugwort has been used the dried or green leaves as a flavoring and coloring agents for tea, cake. pastry, bread, noodle, alcoholic liquor, soap and hygienic band.

• The Korean Journal of Community Living Science
• /
• v.28 no.1
• /
• pp.59-68
• /
• 2017

In this study, two kinds of chestnut-sweet potato (CSP) and pumpkin-sweet potato (PSP) were cooked by three methods: raw, steaming, and roasting. These samples were investigated in food compositions such as moisture, protein, ash, dietary fiber, fat, minerals, and vitamins. As the results of this study, the moisture contents of raw CSP and raw PSP were higher than those of steamed and roasted samples in two cultivars. The contents of protein in raw CSP and raw PSP were 2.57 g/100 g and 3.22 g/100 g, respectively, which were higher than those of other cultivars. The protein contents of roasted CSP and steamed PSP were lower than those of their raw samples. The potassium, phosphorus, magnesium, calcium, sodium, and iron values of PSP were 1,048.46 mg/100g, 152.02 mg/100g, 74.70 mg/100g, 57.22 mg/100g, 22.28 mg/100g, and 1.44 mg/100g, respectively, which were the highest values in tested sweet potato cultivars. The content of dietary fiber in CSP was higher generally than that in PSP. The values of total dietary fiber in cooked sweet potatoes were higher than those of raw sweet potatoes. The contents of vitamins, including thiamine, riboflavin, and niacin, in PSP were higher than those in CSP. Overall, two cultivars of raw, boiled, and roasted sweet potatoes had enhanced food composition. Therefore, these sweet potato cultivars are expected to be highly valuable food items for the development and application of functional foods.

• Korean Journal of Soil Science and Fertilizer
• /
• v.9 no.2
• /
• pp.71-76
• /
• 1976

Field experiments were conducted to study the effect of amendments such as lime and organic matter for mulberry trees on the newly reclaimed sandy loam soil for three years. The results are summarized as follows. 1. Compared to the N.P.K check plot with treatments, leaf yield was increased by 20 to 80%. Leaf yield was higher in the order of NPK+magnesia lime < NPK+compost > NK+fused phosphate NPK+green manure > NPK+barley straw> NPKplot. 2. Mulberry leaf yield showed high significant positive correlation with total weight and volume of root, length and number of wattles and the content of CaO or MgO in leaf respectively. 3. It is known that dead part sympom of top branch during cold season is associated with unbalance magnesium to potassium in mulberry leaf. It is estimated that such symptom was deminished when the ratio of $K_2O/MgO$ in leaf becomes 6.0 or higher. 4. In establishing a mulberry field on hilly reclaimed soil, application of magnesium and calcium with compost was essential but higher amount of potassium fertilizer should be followed in order to prevent dead part symptom of top branch of mulberry trees.

• Korean Journal of Soil Science and Fertilizer
• /
• v.38 no.1
• /
• pp.45-51
• /
• 2005

As a silicate source to rice, a coal ash (50%) was mixed with a phosphogypsum (hereafter, gypsum, 50%). Field experiments were carried out to evaluate rice (Oryza sativa) productivity in silt loam (SiL) to which 0, 20, 40 and $60Mg\;ha^{-1}$ of the mixture were added. The mixture increased rice yield and showed the highest yields following the addition of $30Mg\;ha^{-1}$. The mixture did not result in an excessive uptake of heavy metals by the rice grain. The mixture improved available silicate and phosphate and exchangeable calcium contents in soil. The available boron content in soil increased with the mixture application levels up to $1.42mg\;kg^{-1}$ following the application of $60Mg\;ha^{-1}$, but boron toxicity in rice was not found. It is concluded that the coal ash and gypsum mixture could be a good alternative to inorganic soil amendments to restore the soil nutrient balance in paddy soil.

• The Korean Journal of Pharmacology
• /
• v.32 no.3
• /
• pp.425-431
• /
• 1996

Human neutrophil elastases (HNElastase, EC 3.4.21.37), a causative factor of inflammatory diseases, are regulated by plasma proteinase inhibitors, alpha-proteinase inhibitor and ${\alpha}_2-macroglobulin$. Under certain pathological conditions, however, released enzymes or abnormal function of inhibitors may cause various inflammatory disease. NSAIDs have been clinically applied for treatment of inflammatory diseases. Inhibition of cyclooxygenase is a known mechanism of action of NSAIDs in the treatment of inflammatory disease. In in vitro experiments, HNElastase was inhibited by naproxen, phenylbutazone, and oxyphenbutazone, but ibuprofen, ketoprofen, aspirin, salicylic acid, and tolmetin did not inhibit elastase. HNElastase was also inhibited by chelating agents, EDTA & EGTA, and tetracyclines. Removal of divalent metal ions by EDTA caused inhibition of elastase, and reconstitution of the metal ions recovered the enzyme activity to a certain level. Frequencies and contours in the Raman spectra of various conditions of human neutrophil elastase undergo drastic changes upon partial removal and/or reconstitution of calcium and zinc ions. The metal ion content dependent activities and change of the contour of the Raman spectrogram suggest us that the mechanism of action of a chelator or chelator-like agents on neutrophil elastase may be related to the conformational change at/or near the active site, especially -C=O radical or -COOH radical.

• Korean Journal of Food Science and Technology
• /
• v.39 no.3
• /
• pp.255-259
• /
• 2007

For this investigation, we analyzed the chemical characteristics and enzyme activities of Icheon Ge-Geol radish, Gangwha turnip, and Korean radish. Regarding their proximate compositions, the water contents of the Icheon Ge-Geol radish, Gangwha turnip, and Korean radish were 87.78, 92.73, and 91.45%, respectively. The crude protein, crude fiber, and ash contents of the Icheon Ge-Geol radish were 1.35, 1.11, and 1.55%, respectively, which were much higher than the contents of the other samples; however, total dietary fiber was significantly lower. For mineral content, the magnesium, potassium, and calcium levels of the Icheon Ge-Geol radish were higher than the other samples. With regards to the enzyme activities of the samples, the protease and myrosinase activities of the Icheon Ge-Geol radish were higher than in the other samples. For ${\alpha}-amylase$ activity, the Korean radish showed the strongest activity (18.99 units/g of sample), followed by the Gangwha turnip and Icheon Ge-Geol radish.