• The Korean Journal of Mycology
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• 제22권2호
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• pp.145-152
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• 1994

In order to investigate the cultural characteristics of Lentinus lepideus, media, pH, carbon sources, nitrogen sources, vitamin and organic acids were tested in submerged culture. It grew well in GPB(broth), and the optimum temperature and pH was $25^{\circ}C$ and 4.2, respectively. The carbon sources such as galactose belong to monosaccharide and maltose belong to disaccharide were effective for mycelial growth. Peptone which is compound nitrogen source was good for mycelial yield but the other nitrogen sources were not effective. Among the various vitamins, pyridoxine is suitable for mycelial yield. Among the various organic acids, citric acid promoted the mycelial yield but acetic acid interrupted the mycelial growth of L. lepideus.

• The Korean Journal of Food And Nutrition
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• 제15권2호
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• pp.119-125
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• 2002

Phytoestrogens are non-steroidal compounds fecund In a variety of plants, which exert estrogenic effects in animals. In this study, the physico-chemical properties of Iranian black pomegranate extract and its products as preliminarily research for the developing of natural estrogen supplement were evaluated. The chemical components of Iranian black pomegranate extracts and its product (Forever 120) were analyzed. Proximate compositions of pomegranate extracts were as follows; crude lipid 0.4%, crude protein 0.9%, crude ash 1.4% and carbohydrate 42.0%. Major amino acids of pomegranate extracts are glutamic acid (1310.0ppm), aspartic acid (896.2ppm), arginine (877.7ppm) and phenylalanine (57.5ppm). Fatty acid compositions of pomegranate extract 1ibid extracted by chloroform-methanol (2:1) were myristic (13.1%), stearic (69.4), oleic acid (6.8%) and palmitic acid (8.3%). Mineral elements were ferrous (6640.0ppm) and potassium (2550.8ppm). Vitamins were composed of ascorbic acid(20.0mg/100g), Vit. B$_1$(0.12mg/100g) and niacin (0.80mg/100g). 20 phytoestrogens and 20 estrogens of pomegranate extracts were detected Daidzein (0.29ppm), quercetin (9.75ppm) genistein (0.29ppm) and 17 $\beta$ -estradiol(0.15ppm). Above the chemical components of pomegranate extracts were compared with that of pomegranate its product or other isoflavon concentrates.

• Nutritional Sciences
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• 제7권4호
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• pp.223-234
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• 2004

The aim of this study was to investigate intake of health foods and supplements and its associated factors in middle and old-aged adults in order to contribute to health promotion of Korean population by providing a guide for proper use of health foods and supplements. About 69% of the subjects reported that they were currently taking health foods and supplements or had experiences of having them in the past, whereas 31.2 % reported they had never taken them. The most commonly used type of health foods and supplements was vitamin C as reported by 41.8% followed by others such as lactobacillus products, multi-vitamins, tonic medicine and cardiotonic drug, artificially processed Ginseng foods, vitamin B complex, enzyme supplement, calcium, aloe, apricot extract products, chitosan products, loyal honey, squalene, refined fish oil and iron products. The major reason for taking health foods and supplements was 'to protect the weak constitution' with 155 (42.1%) responses, and the motive for the intake was the suggestion from family-relatives with 235 (63.9%) responses, and the place of purchase was pharmacy with 140 (38.0%) responses, the average monthly expense was 20,000-40,000 won with 140 (26.2%) responses, and effects after the intake was 'so and so' with 180 (33.6%) responses as the highest. More health foods and supplements were consumed as age and education were statistically significantly increased (p<0.05). For health and lifestyle and the intake of health foods and supplements, perceived health status, the presence of illness, and the presence of health management were statistically significant (p<0.05). Male subjects than female subjects and the 30s than the 405 and 50s were appeared to have poorer dietary behaviors (p<0.05). For the health locus of control and the intake of health foods and supplements, the health locus of control score was 22.82 for consumers and 22.79 for non-consumers, showing no significant difference. Logistic regression analysis was performed to find out major factors that affect the intake of health foods and supplements, in which gender, education, smoking, perceived health status, the presence of illness, and health management were significant to the intake of health foods and supplements. It is shown that subjects with perception and attitude of 'health foods and supplements are useful in health maintenance and disease prevention' and 'the information and variety for health foods and supplements are great' have higher probability of taking health foods and supplements.

• Asian-Australasian Journal of Animal Sciences
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• 제29권12호
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• pp.1768-1773
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• 2016

This experiment was conducted to determine the effect of variety and planting year on the nutritive values of corn fed to growing pigs. Four corn varieties examined in this experiment were planted in the same village located in Longhua County, Heibei Province, China, in 2012, 2013, and 2014, respectively. During each year, corn was hand-harvested in early October and sun dried to about 14% moisture content. Three batches of twenty-four barrows ($33.27{\pm}4.30$, $31.88{\pm}2.93$, $34.21{\pm}3.81kg$ body wight [BW] in 2012, 2013, and 2014, respectively) were used and allotted to a complete block design with 4 diets and 6 replicate pigs per diet. Pigs were individually placed in metabolic crates. The four experimental diets were formulated by mixing each variety of corn and vitamins and minerals, respectively. A five-day collection period followed a seven-day diet acclimation period. The results indicated that variety of corn significantly influenced the available energy content (digestible energy [DE] on dry matter basis, p<0.05; metabolizable energy (ME) on dry matter basis, p<0.05, respectively), and the apparent total tract digestibility (ATTD) of organic matter (p<0.01), dry matter (p<0.05), gross energy (p<0.05), neutral detergent fiber (p<0.01), acid detergent fiber and ether extract (p<0.05). The planting year also significantly influenced the available energy contents (DE on dry matter basis, p<0.05; ME on dry matter basis, p<0.01, respectively) and the ATTD of neutral detergent fiber (p<0.01), acid detergent fiber (p<0.01), crude protein (p<0.01), and ether extract (p<0.01). No interaction was observed between the variety and planting year in DE and ME contents in corn. In conclusion, the variety and planting year significantly influenced the available energy and nutrient digestibility of corn fed to growing pigs.

• Korean Journal of Community Nutrition
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• 제14권5호
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• pp.495-508
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• 2009

The purpose of this study was to evaluate the eating behaviors and dietary quality of various aged adults. This study conducted through questionnaire and dietary survey by 24-hr recall to 850 adults residing in Samcheok. Subjects were divided into four groups according to the age in male and female, which included 20~29 yrs group (male n = 94, female n = 66), 30~49 yrs group (male n = 201, female n = 216), 50~64 yrs group (male n = 88, female n = 96), and $\geq65$ yrs group (n = 46, female n = 43). In male, 20~29 yrs group had a larger proportion of subjects who skipped breakfast, lunch and dinner compared to other groups (p < 0.001, p < 0.05, p < 0.01). The daily food and energy intakes in $\geq50$ yrs group were significantly lower than those of < 50 yrs. Protein and fat intakes of 20~29 yrs group were significantly higher than those of the other groups. But ND (Nutrient Density) of minerals as like calcium, iron and plant iron in 20~29 yrs group were significantly lower than those of other groups. The KDDS (Korean's Dietary Diversity Score) of 20~29 yrs group, 30~49 yrs group, 50~64 yrs group and $\geq65$ yrs group in male were 4.1, 3.8, 3.7 and 3.5 respectively and there was significant difference (p < 0.001). In female, skipping breakfast and dinner were significantly higher in 20~29 yrs group than in other groups (p < 0.001, p < 0.001). And the use of nutrient supplementation was higher in 30~49 yrs group than that of other groups (p < 0.05). The daily energy intakes was higher in 20~49 yrs group than that of $\geq65$ yrs group. The ND (Nutrient Density) of animal protein, vitamins A and $B_1$ in 20~29 yrs group were significantly lower than those of other groups. The KDDS of 20~29 yrs group, 30~49 yrs group, 50~64 yrs group and $\geq65$ yrs group in female were 4.0, 3.9, 3.9 and 3.6 respectively and $\geq65$ yrs group was significant lower than other groups. According to these results, $\geq65$ yrs and 20~29 yrs group had more dietary habit problems and poor nutrition status than 30~64 yrs group. The results of this study revealed that nutritional management and education for adequate meals should be emphasized in adults and elderly.

• The Korean Journal of Food And Nutrition
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• 제14권2호
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• pp.161-166
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• 2001

The optimum condition for production of yeast extract by autolysis and enzymatic method were studied with waste brewers\` yeast. The major components of brewer\`s yeast in proximate compositions were carbohydrate(46.0%) and protein(41.7%). There was a little appreciable difference in the promaximate composition of waste brewers\` and bakery yeast. The major minerals were identified as K, P, Mg and Ca, and their contents were about 1,659.7%, 1,197.4mg%, 210.4mg% and 105.6mg%, respectively. The major vitamins were identified as vitamin C and vitamin B group, and their contents were about 7.9IU/100g and 4.2IU/100g, respectively. The optimum yeast concentration in the reaction suspension was 10% (w/v) waste brewer\`s yeast slurry. The protein content in brewer\`s yeast extract was increased with addition of NaCl as plasmolyzers. However, the plasmolyzer effect of ethanol a little showed as the concentration increasd from 3% ∼7%. The 5\`-nucleotides(5\`-GMP and 5\`-IMP) content in brewer\`s yeast extract was increased with addition of glucanase. The total content of 5\`-nucleotides (5\`-GMP and 5\`-IMP) increased by 160% than those by the autolysis of waste brewer\`s and bakery yeast.

• Journal of the Korean Society of Food Science and Nutrition
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• 제13권2호
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• pp.149-155
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• 1984

Raw and cooked pig's head, feet and tails were evaluated for yield, proximate composition, caloric value, and the contents of amino acids, minerals and vitamins. The yields of the raw pig's head, feet and tails were 67.4%, 46.1% and 67.6%, respectively. Corresponding values for the cooked were 54.1%, 34.3% and 47.6% respectively. No significant differences were observed for proximate composition between these samples and any other source3 of the meats. The high energy values, 253.8-310.5 Cal/100 g, of the samples were largely due to the fat content. Among the essential amino acids, these products showed a higher lysine, leucine and threonine content, and lower methionine and tryptophan content. The total amounts of non-essential amino acids were more than half of those of all amino acids. Neither the raw nor the cooked pig's head, feet and tails contained vitamin A. On these data, pig's head, feet and tails tissue have a relatively low in vitamin B content as compared to conventional pork cuts.

• Journal of the Korean Society of Food Science and Nutrition
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• 제42권5호
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• pp.730-735
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• 2013

This study compared the nutritional components (proximate components, fatty acids, amino acids, minerals and vitamins) between genetically modified (GM) drought-tolerant rice and a parental rice cultivar (Ilmibyeo) as a non-GM control. Both GM and non-GM rices were grown and harvested in two different locations, Gunwi and Suweon in Korea. Proximate components (moisture, starch, protein, lipid, and ash contents) were similar between the drought-tolerant GM rice and the conventional non-GM rice. There were no significant differences between the GM and non-GM rice in most of their nutrient compositions, despite minor locational differences of some amino acids and minerals. These results indicate that transgenic rice with a genetically improved resistance to drought is equivalent to the parental rice cultivar without major changes in its chemical contents.

• Korean journal of food and cookery science
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• 제32권3호
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• pp.245-252
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• 2016

Purpose: To provide the public with nutritional information on consumption types of garlic, we evaluated the influence of heat treatment method on the nutritional contents of different species of garlic. Methods: We determined the content of general components, minerals, vitamins, and fatty acids in each species of garlic produced in Seosan and Goheung by heating with blanching or microwave roasting. Results: The results of the two-way analysis of variance test indicated that the species in particular, as well as method of heat treatment and interaction, had an influence on nutritional content. The moisture and crude fat content was higher in Southern type garlic than in Northern type garlic, while crude proteins, crude ash, and dietary fibers were more abundant in Northern type garlic than in Southern type garlic. With regard to the total mineral content, K, P, Mg, and Ca were the main components in Northern type garlic and Southern type garlic. Moreover, unsaturated fatty acids showed high levels in both Northern type garlic and Southern type garlic, with more abundant linoleic acid. Overall, Northern type garlic showed a higher content of minerals and fatty acids, while more vitamin B was present in Southern type garlic. In addition, the results indicated that the content of general components (dietary fiber excluded) was increased in both Northern type garlic and Southern type garlic upon heat treatment. Blanching resulted in increased mineral and fatty acid content in Southern type garlic and decreased content in Northern type garlic, indicative of species differences; conversely, microwave roasting contributed to an increase in the content in both Northern type garlic and Southern type garlic. Conclusion: The nutritional content of garlic is more dependent on species than the cooking method, and grilling is associated with less nutrient loss than blanching.

• Journal of Korean society of Dental Hygiene
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• 제19권3호
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• pp.387-397
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• 2019

Objectives: This study was conducted to examine the subjects' oral health status and changes in the oral environment after mouthwash with effervescent Vitamin C and its intake and to understand the impact on changes in the number of bacteria causing periodontal diseases in the oral cavity based on the oral health status and oral environmental condition. Methods: After obtaining approval from the Institutional Review Board of D-University, 45 people (24 in an experimental group and 21 in a control group) who participated in the oral health program were selected, among visitors of the Clinical Dental Hygienics Laboratory of D. University in B. Results: Based on the subjects' periodontal health status, the number of bacteria causing periodontal diseases in the oral cavity decreased in both experimental and control groups before and after the experiment. However, in the experimental group, it was significant when the Bleeding on Probing(BOP) level was below average, and Calculus index(CAL) was above average, in Aggregatibacter actinomycetemcomitans and the red complex. It was also significant when CAL was above average in the orange complex in the control group. Regarding bacterial changes in periodontal diseases based on the subjects' oral environmental condition, there was a significant change in the Adenosine Tri Phosphate (ATP : intraoral contaminants test) test in the oral cavity in A. actinomycetemcomitans and the red complex in the experimental group and in the O'Leary index in the control group. Further, there was a significant change in the orange complex in the ATP test in the experimental group. Conclusions: A comprehensive analysis of the results revealed that the oral health care program for dental hygiene decreased the number of bacteria causing periodontal diseases in the oral cavity in both experimental and control groups.