• Korean Journal of Food Science and Technology
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• v.26 no.6
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• pp.759-763
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• 1994

For utilization of buckwheat as vegetable, rutin and minerals of the leaves at growing stages were investigated. The contents of crude protein and crude fat in seed of nine improved kinds of Korean buckwheat were $16.2{\sim}20.4%$ and $2.2{\sim}2.9%$ respectively. Ash content $(2.4{\sim}4.3%)$ in the improved kinds were higher than those in the native kinds. Content of crude fiber in the improved kinds were lower than those in the native kinds. Suwon 11 (0.12%) and Suwon 5 (0.11%) had high contents of rutin among the improved kinds. The composition of K, Ca, Mg and Fe in the improved kinds were better than that in the native kinds. Vegetable of the improved kinds had higher content of crude protein than the native kinds. Suwon 10 and 11 among vegetables of the improved kinds contained high amount of crude protein. Swon 5 had the highest content of rutin (0.40%) in the improved kinds. Suwon 5 was tested for the changes of rutin content in growing. Rutin content was 0.40% in the first growing stage, whereas 1.32% in the final growing stage. Insoluble materials in 10% HCl was also 69.8% in the first growing stage, whereas 4.68% in the final growing stage. Iron and calcium contents were increased with growing of vegetable.

• Journal of Life Science
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• v.17 no.9 s.89
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• pp.1290-1293
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• 2007

The nutritional composition of fruiting body of Sparassis crispa has been analyzed for medicinal and edible uses. Minerals in S. crispa were found to be as follows; potassium (1,299.44 mg), phosphorus (104.73 mg), sodium (98.21 mg), magnesium (54.86 mg), calcium (8.39 mg), iron (7.61 mg), zinc (6.37 mg), copper (1.31 mg) and manganese (0.63 mg) based on 100 g of mushroom dry weight. In 20 kinds of total amino acids found in S. crispa, sum of glutamic acid and glutamine content was the highest (1,960 mg/l00 g) and sum of aspartic acid and asparagine, tryptophan, leucine and alanine were followed. Concerning free amino acids, glutamic acid, tryptophan, glutamine and aspartic acid were dominant. Among 8 vitamins detected, the vitamin E content was the highest (408.5 mg) based on 100 g of mushroom dry weight, then vitamin C, niacin and pantothenic acid were followed.

• Asian-Australasian Journal of Animal Sciences
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• v.23 no.7
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• pp.937-945
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• 2010

This study aimed to investigate the effects of dietary zinc (Zn), environmental temperatures and Zn${\times}$temperature interaction on growth, feathering score and mineral composition of broilers. A total of 256 d-old Avian male broiler chicks were randomly allocated to a $4{\times}2$ factorial arrangement with four corn-soybean meal basal diets (containing 44 mg Zn/kg) supplemented with 0, 40, 60 mg/kg Zn (Diets 1, 2 and 3, respectively; 0.8% Ca for these three diets) and non-Zn supplementation, 1.6% Ca (Diet 4) and two temperature conditions (low: 26, 24, $22^{\circ}C$ vs. high: 30, 28, $26^{\circ}C$). All birds were given feathering coverage scores for back, breast, wing, under-wing and tail. The wing and tail were further evaluated for the occurrence and severity of defect feathers. Feathers were then pooled for mineral composition analysis. The results showed that in high temperature conditions, broilers fed Zn-unsupplemented, 0.8% Ca ration (Diet 1) had significantly (p<0.05) lower ADFI and ADG (wk 1-6) than birds under low temperature conditions. However, when the birds were fed 40 and 60 mg/kg Zn supplementation (Diets 2 and 3), the ADFI and ADG in both temperature conditions were not significantly different. In low temperature conditions, the ADFI, ADG (p<0.05), all feather coverage (p<0.01) and tail defect scores (p<0.001) of birds fed Diet 4 (excess Ca) were significantly poorer than those fed Diet 1. More Ca (p<0.05) was retained in the feathers of broilers fed Diet 4 under high temperature conditions. Broilers fed the Zn-unsupplemented ration (Diet 1) had significantly higher feather phosphorus (p<0.01) and potassium (p<0.05) concentrations than those fed the 60 mg/kg Zn-supplemented ration (Diet 3). A reduction of feather phosphorus (p<0.01) and potassium (p<0.05) and higher manganese (p<0.05) concentrations were observed in Diet 4 broilers as compared to those fed Diet 1. Under high temperature conditions, broilers had lower iron (p<0.05) and higher manganese (p<0.05) concentrations in feathers. Broilers kept in high temperature conditions had a higher Zn requirement and 40 mg/kg Zn supplementation was sufficient for the birds to achieve optimum growth. Supplemental Zn ameliorated the adverse effect of high temperature on growth and occurrence of tail feather defects. Excess Ca disrupted Zn metabolism to exert a detrimental effect on growth performance and normal feathering and this was elucidated in the birds kept in low temperature conditions.

• Journal of Nutrition and Health
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• v.2 no.4
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• pp.143-153
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• 1969

For the purpose of the better dietary management and to emphasize of importance in nutrition education for 949 woman workers at the dormitory of wig factory in Seoul, the nutritional survey was conducted for seven days from August 13 th to 20 th of 1969. The survey included food and nutrient intakes, physical measurement, clinical findings and biochemical measurement were conducted for the randomly sampled 44 subjects. According to the survey results, their heights was under the standard and the 82% of the total subjects was the age ranges from 16 years to 20 years old. Their daily menu was not planned properly and the concept of 5 basic food groups was not utilized in their menu planning. The balanced meal should be emphasized in this factory. Calories and protein intakes are low compared with the recommended allowance and especially animal protein intake is low. Fat intake is only 8.8 grams for capita per day. Vitamins and minerals intake are also low. Clinical and biochemical survey indicated various vitamin deficiencies and anemia which is mostly due to the iron insufficiency.

• Korean Journal of Medicinal Crop Science
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• v.10 no.3
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• pp.185-193
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• 2002

This study was done to accept basic data on chemical components in rhizome of native Polygonatum species in Korea. In mineral contents of their rhizome, total nitrogen, potassium, calcium, magnesium and sodium concentration were higher in Polygonatum inflatum, P. humile and P. odoratum var. pluriflorum 1 than the other species in all the sampling dates. P. odoratum var. pluriflorum 1, P. odoratum var. pluriflorum 2 and P. inflatum showed relatively higher iron and mananese contents but P. odoratum var. pluriflorum 1 and P. stenophyllum did in copper content on November 20. Total sugar was acculated in later growth stages, although P. stenophyllum had the highest content but P. lasianthum var. coreanum had the lowest in all the sampling dates. Protein content was the highest in P. lasianthum var. coreanum but the lowest in P. stenophyllum in all the sampling dates. The major amino acids in their rhizomes were arginine followed by glutamic acid, and total and essential amino acid content were abundant in P. lasianthum var. coreanum and P. humile.

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

• Journal of Community Nutrition
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• v.5 no.2
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• pp.105-111
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• 2003

Balanced intake of appropriate nutrients is the key to sustaining and promoting health as well as preventing and treating diseases. It is not always easy, however, to take balanced nutrition and various related factors must be taken into consideration. This report provides a summary of studies that have examined the nutrient intakes of Japanese middle-aged men and the relationship of this intake to drinking, job-related separation from families, and health practices. The alcohol consumption of Japanese middle-aged men has more than tripled in the last forty years. When nutrient intake was examined in relation to alcohol consumption, it was discovered that the maximum acceptable alcohol consumption was approximately 23 grams (about two drinks) of pure alcohol, provided the level of nutrient intake for drinkers was equal to that of non-drinkers. The alcohol energy ratio was approximately 5％. It was also discovered that middle-aged men's eating habits deteriorate when they relocate to new posts without their families and live by themselves. Compared to those living with their families, a higher proportion of those living alone have unfavorable eating habits including skipping breakfast or lunch, having a late lunch, and eating and drinking after dinner until bedtime. When Breslow's seven health practices, nutrient intake, and consumption weight by food group were examined, it was discovered that the group that had many beneficial eating and living habits consumed plenty of legume, pulses, fruit, green yellow vegetables and milk products. Their intake of vitamins and minerals was high and the results of a physical examination proved to be excellent. According to nutrition surveys conducted in Japan, China, the United Kingdom and the United States using a 24-hour recall method with common protocols and strict controls to ensure high levels of accuracy and cross-study validity, the Japanese had the highest cholesterol intake and the lowest dietary fiber intake among the four countries. Also, the alcohol energy ratio of the Japanese exceeded 8％, the highest among the four countries, while their intake of magnesium and iron was the lowest These results indicate that it is necessary to enhance nutritional education for middle-aged men and to reinforce the social environments in which they live and work in order to promote proper diet and nutrition in Japan. (J Community Nutrition 5(2) : 105-111, 2003)

• Journal of Conservation Science
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• v.33 no.6
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• pp.485-495
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• 2017

The purpose of this study is to evaluate the functionality and lightfastness of the natural pigments according to the type of Seokganju used as Dancheong. The commercially available red iron-oxide-based natural pigments that are called Seokganju and Daija manufactured by traditional methods in Korea and Japan were selected. The analysis of the constituent minerals and constituents of 8 kinds of collected Seokganju showed that most of them contained hematite. There are two types of Seokganju according to the $Fe_2O_3$ contents. The type of Seokganju can be characterized not only using the main component but also from the burn-out processing. The chromaticity results for Seokganju with a high $Fe_2O_3$ concentration indicate dark red or grayish brown, while those for Seokganju with a low $Fe_2O_3$ concentration indicate yellowish red or yellowish brown. Samples were prepared by mixing with a glue solution and functional properties were evaluated based on the opacity and spreadability. Coated samples were used in the lightfastness test. The spreadability and opacity of the pigments were measured differently depending on the main component. Most Seokganju samples a showed slight color change until $9,000kJ/m^2$ but rapid color changes were detected after $18,000kJ/m^2$. In particular, burnt Seokganju showed superior lightfastness.

• Korean Journal of Food Science and Technology
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• v.39 no.1
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• pp.14-19
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• 2007

The nutritional compositions of different parts (roots, leaves, and seeds) of two lotus species (Nelumbo nucifera Gaertner), Muan's white-flowered and Naju's pink-flowered, are as follows; crude protein content in the seed was four times higher and the carbohydrate content was three times higher than those in the root and leaf. Comparing between the species, the crude protein content of the white lotus was the higher than that of the pink lotus, but the carbohydrate content was comparatively lower. The potassium content of the minerals in all samples was much higher than those in others. Additionally, the iron content of the root was much higher than those in the leaf and seed. In both species, the major free sugar in the root was sucrose; the main sugars in the leaf were fructose and alucose, and those in the seed were stachyose, raffinose, and sucrose. Among amino acids, glutamic acid showed the highest level in the leaf and seed, while aspartic acid was the highest in the root.

• Journal of Nutrition and Health
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• v.34 no.8
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• pp.912-919
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• 2001

The increased oxidative stress may play an important role on the pathogenesis of diabetes and diabetic complications, and the blood level of vitamin C and lipid peroxidation in NIDDM patients may be used as an indicator for oxidative stress. However there is only scanty evidence on the blood level of vitamin C in NIDDM patients with or without diabetic complications. The study population consisted of 90 NIDDM patients(diabetes without complication, 48, and diabetes with complications, 42) and 41 normal subjects. The 42 diabetic complications were divided into 3 groups : 15 diabetic nephropathy, 18 diabetic neuropathy, 9 diabetic retinopathy. The anthropometric data and blood biochemical data were studied. The dietary intake was determined by 24 hour recall methods and food frequency questionnaire. The plasma concentrations of MDA and vitamin C were determined by fluorophotometer and HPLC respectively. 1) In blood lipoprotein study, diabetes with complication had higher level of TG than diabetes without complications, while no significant differences in total cholesterol, HDL, and LDL were shown. Diabetic neuropathy had the highest TG level among diabetic complication groups. 2) The intakes of vitamin B complexes(vitamin B$_2$, vitamin B$_{6}$, not vitamin B$_1$) and antioxidant vitamins(vitamin A and vitamin E, not vitamin C) and certain minerals such as iron and calcium in diabetes were not sufficient but the intakes of energy, protein, niacin, and phosphorus in diabetes were sufficient. The dietary intakes between diabetes with-and without complications were not significantly different. Among diabetic complications, the diabetic retinopathy had the lowest intake of vitamin B$_2$ and B$_{6}$(p < 0.05). the diabetic neuropathy or nephropathy consumed extremely low amount of vitamin A. 3) The MDA concentrations of NIDDM was significantly higher than that in controls(p < 0. 05) while no significant difference in the MDA concentration between with and without complications was shown. Although there were no statistical differences, the diabetic nephropathy and diabetic neuropathy showed the higher concentration of MDA than the diabetes without complications or diabetic retinopathy. 4) The plasma concentration of vitamin C in controls was higher than that in diabetes(p < 0.05) while the plasma vitamin C in diabetes with and without complications were similar. In diabetic complications, no differences in plasma vitamin C concentration of three groups were shown. This study showed that the oxidative stress in NIDDM patients was highly increased and the vitamin C reserve was significantly depleted, as compared with normals, although their intakes of vitamin C met korean RDA, which means that diabetes need more vitamin C intake to decrease oxidative stress in NIDDM patients.nts.