• Title/Summary/Keyword: nutritions

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Effect of Supplement nutrition on the Mycelial Growth of Lentinus edodes

  • Yang, Jae-Kyung;Kim, Tae-Hong;Lim, Bu-Kug
    • Journal of the Korean Wood Science and Technology
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    • v.31 no.6
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    • pp.60-66
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    • 2003
  • Mycelial growth of L. edodes by supplement nutrition of softwood was studied on a sawdust medium. The sawdust used was from the following softwood species : Larix leptolepis, Pinus densiflora and Pinus koraiensis. The added nutritions consisted of carbon nutritions(sucrose, active carbon, xylose, glucose, paper pellet), nitrogen nutritions(potassium nitrate, ammonium chloride, asparagine, glutamic acid) and vegetable oil(rice bran oil). The sawdust medium was a mixture of 76% sawdust, 20% rice bran, 3% carbon nutrition, 0.4% nitrogen nutrition and 0.6% calcium carbonate. Following addition of carbon and nitrogen nutritions on the sawdust medium proved most suitable : L. leptolepis (glucose, glutamic acid), P. densiflora (active carbon, asparagine) and P. koraiensis (xylose, glutamic acid). The highest mycelial growth was obtained from sawdust medium of optimum condition with 97% of L. leptolepis, 110% of P. densiflora and 98% of P. koraiensis. This study has provided useful preliminary information for the cultivation of L. edodes.

Influence of Mineral Nutritions and Phosphorus Concentration in Culture Solution to the Ferrous Absorption of Rice and Barley (배양액중의 무기영양, 인산통도가 수도, 대맥의 철흡수에 미치는 영향)

  • Kyeong-Bea Park;Ho-Sung Ha
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.23 no.1
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    • pp.14-20
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    • 1978
  • To find out the influence of mineral nutritions and phosphorus concentration to ferrous absorption of rice and barley plants were studied in the culture solution which has various levels of ferrous and phosphorus with deficiency of mineral nuritiont. The ferrous absorption of rice and barley plants were greatly affected by phosphorus and potassium in the culture solution among mineral nutritions. The ferrous absorption was decreased with the increasing of phosphorus concentration. The rate of ferrous translocation was higher in barley plant than that of rice plant. And also, the symptoms of ferrous toxicity occurred easily in the barley plant. From these results, it was concluded that the ferrous was more influential upon the growth of barley than that of rice.

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Hypothesis about pyretomedical pathogenesis of disease development, neoplasia development and metastasis (피레토의학적 질병(疾病)의 발생(發生) 및 암(癌) 발생(發生) 그리고 암(癌) 전이(轉移)에 대한 가설(假設))

  • Kang, Jae-Chun
    • Journal of Korean Traditional Oncology
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    • v.12 no.1
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    • pp.25-35
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    • 2007
  • There are very necessary for three factors, that is sun(oxygen), temperature, nutritions to maintain life. when sun shines, skin temperature get up. after man eat food, core body temperature get higher. temperature is temperature. therefore, common characteristic of three factors is temperature. temperature is energy and qi(氣) in korean medicine. in addition to this one, pyretomedicine also insists that the key point of all disease development mechanism is also the overenough and poor of energy. In this aspects, writer submit this thesis about all disease development, neoplasia devolpment and metastasis as hypothesis.

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Cultural characterization of probiotic Lactobacillus sakei BK19

  • Yang , Byung Gyoo;Song , Choon Bok;Yeo , In Kyu;Lee , Kyoung Jun;Park , Geun Tae;Lee, Sang Hyeon;Son, Hong Joo;Heo, Moon Soo
    • Journal of fish pathology
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    • v.16 no.2
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    • pp.119-123
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    • 2003
  • We have selected an valuable pmbiotic strain; Lactobacillus sakei BK19 which has wide antagonic spectrum against fish pathogens . Present study investigated cultural characterization of L. sakei BK19 including pH tolerance , susceptibility of antibacterial agents and growth pattern with different environment such as nutritions, temperature and salinity. L. sakei BK19 showed Significantly higher resistance at low pH(around pH 4) environment and relative high antibiotic tolerance . In the study of optimal culture condition, maltose and saccharose provided the optimal nutritional culture condition while lactose and mannitol were unable to supply its carbon source for the fermentation of L. sakei BK19. Moreover. L. sakei BK19 showed good growth at the temperature range of 15 to $45^{o}C$ und the NaCl concentration of 0 to 7%. Hence, this particular probiotic strain may be benificial both in seawater and fresh weter conditions.

Adaptations and Physiological Characteristics of Three Chenopodiaceae Species under Saline Environments (명아주과 3종 식물의 염 환경에 대한 적응특성의 비교)

  • 송승달;김진아;추연식;배정진;김인숙;추보혜;이인중
    • The Korean Journal of Ecology
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    • v.25 no.2
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    • pp.101-107
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    • 2002
  • Three species of Chenopodiaceae, i.e. Suaeda japonica, Salicomia herbacea, Beta vulgaris var. cicla, were investigated to compare the physiological characteristics through inoic balances and osmoregulations under different environmental salt gradients. Plats were harvested in two weeks from treatments with salt gradients (0, 50, 100, 200 and 400 mM NaCl) and mineral nutrition gradients(1/1, 1/5, 1/10 dilutions of Hoagland solution). Plants were analyzed for growth responses, ionic balances, osmolalities, conductivities, glycinebetaine and proline contents quantitatively. Three plants of Chenopodiaceae accumulated slats into tissues unlike some salt sensitive species, and showed unique adaptation patterns to overcome saline environments, i.e. strong growth stimulation for Salicomia herbacea, growth negative tolerance for Suaeda japonica, and growth positive tolerance for Beta vulgaris var. cicla. The absorption of inorganic Ca/sup 2+/ ions was inhibited remarkably due to the excess uptake of Na+ with increasing salinity. The K+ content in plants was significantly reduced with increasing salinity. Total nitrogen content was reduced as mineral nutritions and salinity increased. Conductivity and osmolality increased with increasing salinity regardless of mineral nutritions. The ranges of glycinebetaine and proline contents were 0.2∼2.5 μM/g plant water and 0.1∼0.6μM/g plant water, respectively.

Reserch on the bamboo in Korea -Studies on the terrestrial stem of the bamboo (한국산(韓國産)의 죽류(竹類)에 관(關)한 연구(硏究) -죽(竹)의 지하경(地下莖)에 대하여-)

  • Chong, Hyon Pae
    • Journal of Korean Society of Forest Science
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    • v.2 no.1
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    • pp.10-16
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    • 1962
  • The following are what this auther concluded in his recent research of bamboo cultivation. 1. The bamboo logging should be prohibited during the months of July and August, for during that season the growth of the terrestrial stem is most vigorous and active. 2. The growth of terrestrial stem of the phyllotachys pubescens is not likely to be affected the soil texture on which it grows and it is sappling sprout out well enough in any kind of soil, but it was found out that it grows in the best condition on the sand-clay soil and in next best condition on the clay-soil. 3. The bamboo blossoming takes always most of the nutritions needed for the growth of the terrestrial stem and causes to decay 90 percent of the next year buds which await in the terrestrial stem to sprout as the sappling. The remaining 10 percent of the buds is to be the "re-incarnated bamboos" 4. The terrestrial thin roots of blossoming bamboo are negative in their growth, too weak in absorbing the nutrition. The above stated facts show, to be brief, that growth of bamboo depends largely upon that of the terrestrial stem.

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Lipid Peroxidation and Vitamins E and A Levels in Tissues of Rats Fed Fish Oil or Soybean Oil Supplemented with Vitamin E (비타민 E 수준을 달리한 어유 또는 대두유를 먹인 흰쥐 조직의 지질과산화와 비타임 E 및 A 상태)

  • Choi Yong-Sun
    • Journal of Nutrition and Health
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    • v.28 no.10
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    • pp.967-975
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    • 1995
  • To investigate effects of dietary fish oil and vitamin E level on the tissue levels of vitamin E and vitamin A and to see which tissue is sensitive to lipid peroxidizability, male Sprague-Dawley rats were fed experimental diets composed of either menhaden oil or soybean oil nad either low(equivalent to 17 mg $\alpha$-tocopherol) or high (equivalent to 140mg $\alpha$-tocopherol) vitamin E level for 4 weeks. Palsma TBARS per mg lipid was significantly elevated in rats fed fish oil with low vitamin E level compared to soybean oil-fed rats. TBARS levels of liver, heart, kidney and liver microsomes were also increased by feeding fish oil with low vitamin E level. Plasma TBARS level was significantly correlated with TBARS levels of liver, heart, kidney and liver microsome. Plasma vitamin E level of groups with vitamin E supplementation was elevated significantly as compared to the those without vitamin E supplementation, whereas vitamin E levels of liver, heart and kidney were not changed significantly. Plasma TBARS was negatively correlated with plasma vitamin E(r=0.5763, P<0.001) and A(r=-0.4523, P<0.01) and seems to be a good indicator of in vivo lipid peroxidative stress.

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Societal Implications of Biotechnology and GMOs in Agriculture (생명공학과 GMOs의 농업에 대한 사회적 함의)

  • Lim, Hyung-Baek
    • Journal of Agricultural Extension & Community Development
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    • v.11 no.1
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    • pp.175-189
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    • 2004
  • There are many assertions related to biotechnology and genetically modified organisms(GMOs). Some experts have asserted that GM foods could be dangerous and that there is no reliable evidence that have been demonstrated safe through appropriate tests, and the others asserted these foods are as safe and nutritions as their conventional counterparts. The objectives of this study was to study an societal implications of biotechnology and GMOs in agriculture. To keep the balance in mind the researcher examined not only usefulness but also harmfulness of GMOs, along with the developmental process of biotechnology industry. It was observed that basically, multinational corporations developed GMOs to maximize their profit, and strengthened their control on agriculture and food through GMOs, as observed in alliance among big multinational corporations' food chain cluster and systems. Under the situation, farmers were losing their status as independent producer and were becoming propertied labor for multinational corporation through contract farming. If these trends continuous in the future, multinational corporations will have the control of genetic resources, these may bring about reduction of bio-diversity, thus may lead the opposite direction to eco-friendly agriculture. If multinational corporations' tendency to suppress the latent harmfulness for the profit continuous further, this may lead the degradation phase of farming and agriculture, thus leading negative socio-economic effects as well as culture and religion.

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Study of the Dietary Behaviors and Adaptation for Korean Foods among Central Asian Workers Living in South Korea (한국거주 중앙아시아 노동자의 식습관 및 한국식생활 적응 실태 연구)

  • Lee, Eun Jung;Lee, Kyung-Ran
    • Journal of the Korean Society of Food Culture
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    • v.35 no.1
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    • pp.86-96
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    • 2020
  • This study analyzed the dietary behaviors and adaptation for Korean foods among Central Asian workers(Mongolia, Kazakhstan, Uzbekistan, Kyrgyzstan) living in South Korea to provide basic and fundamental data that allows Central Asian workers to have desirable eating habits while living in South Korea. Questionnaires were completed by 186 Central Asian workers living in South Korea. From this study, we found that 56.8% of respondents ate three meals a day, and 27.2% of respondents ate two meals a day. 29.7% of respondents had no snacks. For adapting Korean food, Mongolia, Uzbekistan, Kyrgyzstan workers had difficulties adapting spicy and salty flavors and unpleasant smell while Kazakhstan workers had difficulties due to sweet flavors and spicy and salty flavors. Men adapted better than women to adapt Korean food. Women respondents ate Korean food more often than men. And the Uzbekistan ratio of eating homeland food daily was the highest. By providing understanding of dietary patterns of Central Asian workers, these results can be used as the basic and fundamental data for their Korean food adaptation.

Chemical Components and Pulverization conditions of the Pollens of Pinus rigida and Pinus koraiensis (리기다소나무와 잣나무 화분의 화학적 성분과 파쇄 조건에 관한 연구)

  • 김계환;오혁근;서병수;박준모;김상용
    • Journal of Korea Foresty Energy
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    • v.19 no.1
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    • pp.30-37
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    • 2000
  • This study was to analyze the chamical components of the pollens of Pinus rigida and P. koraensis and to investigate the optimal conditions for pollen pulverization. The results are as follow: (1) The contents of moisture, crude ash, crude protein, crude fat, crude filber and carbohydrate in the pollen of P. rigida were 9.9%, 2.5%, 13.1% 2.9% 7.5% 64.1% respectively, while those of P. koraiensis were 9.8%, 2.1%, 11.1% 2.8% 8.1% 66.1% respectively. All the contents of P. rigida and P. koraiensis were much higher than those of general crop grains. (2) Eighteen different amino acids were detected in the pollen of P. rigida and P. koraiensis. Among them, ten essential amino acids were indentified, which showed high nutritions values. (3) The contents of vitamin A, B1, B2, C, and E in the pollen of P. rigida were 8.7 mg, 10.1 mg, 15.9 mg, 32.9 mg, 1.9 mg, respectively, while those of in the pollen of P. koraiensis were 7.9 mg, 9.7 mg, 14.5 mg, 34.2 mg, and 2.5 mg respectively. Vitamin C among them was abundant. (4)When the pollen grains of P. prigida was pulverized for 50minutes at 5,000rpm and P. koraiensis for 40 minutes at 5,000rpm by Overhead stirrer, the 100% of pollen was pulverized.

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