• 제목/요약/키워드: nutrition of plants

검색결과 589건 처리시간 0.025초

Evaluation of Macro Mineral Contents of Forages: Influence of Pasture and Seasonal Variation

  • Khan, Zafar Iqbal;Ashraf, M.;Hussian, Altaf
    • Asian-Australasian Journal of Animal Sciences
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    • 제20권6호
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    • pp.908-913
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    • 2007
  • Concentrations of major elements in forages were determined in relation to ruminant requirements at a livestock experimental station in Leiah district, Punjab-Pakistan using mapping techniques. The study investigated the influence of sampling periods and pasture types on the concentrations of calcium, magnesium, potassium, and sodium in forages. The implications of these forages for nutrition of ruminants were assessed for the livestock population at that particular experimental station, which are supported by the farm pastures. Within the farm, variations in the element status of the forages were related to soil pasture types. A tentative assessment of the mineral status of available forages at this farm for different pastures using guidelines developed for domestic animals indicated deficiencies of only Na, but forages contained adequate Ca, Mg, and K levels required for grazing ruminants. The concentrations of Na in the forage reserves indicated that the potential supply of this element to plants was limited from the soil to plants and from plants to the animals grazing them. Soil minerals were not measured in this study. The potential use of fertilizers, as pasture amendment as well as supplementation of ruminants, with a specifically tailored mineral mixture is important to livestock producers and environmentalists as well, because their use may improve forage nutritive value and in turn meet requirements of animals.

식물 대사공학에 의한 산업용 지방산 생산연구 현황 (Metabolic engineering for production of industrial oils in transgenic plants)

  • 이경렬;김현욱
    • Journal of Plant Biotechnology
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    • 제36권2호
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    • pp.97-105
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    • 2009
  • Seed storage lipids of plants, essential for seed germination as energy supplier, have been used for humankind and animal as nutrition sources. Fatty acids of vegetable oils have the characters appropriate for industry based on their chain length, the position and the number of double bonds. So they are used as raw materials for lubricants, cosmetics, soaps, paints and plastics or as energy source such as bio-diesel. However, there is a limit that applies vegetable oils from typical oil crops for industrial uses, mainly because of the mixture of five common fatty acids. Therefore, identification of unusual fatty acids for industrial uses from diverse plant resources and metabolic engineering to produce unusual fatty acids have been carried out in Arabidopsis as a model for the study of oilseed biology. Here, we discuss the unusual fatty acids for industrial uses, the genes synthesizing them in lipid metabolism, and the current limits in production of transgenic plants accumulating unusual fatty acid in their seeds. In addition, we describe our work on metabolic engineering of Brassica napus for the production of the unusual fatty acid ricinoleic acid in the seed, because of its industrial uses.

지역 향토음식 발굴 및 정착을 위한 연구 개발 -무주 지역을 중심으로- (The Research and Development for an Excavation and Settlement of a Native Local Foods in Muju area)

  • 신동화;박영자;권경순
    • 한국식생활문화학회지
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    • 제11권1호
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    • pp.7-12
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    • 1996
  • The 18th Winter Universiade will be held in Muju in 1997. It is a good opportunity to inform the local foods of Muju to the inside and outside of Korea. First of all, we carefully investigated the quantity of all kinds of food material, their circulation ability, and cookery per year in Muju. We found about sixty kinds of food as many as restaurant. We presented how to improve such kinds of food as O-Chunk (fish porridge), Minmulmaeuntang, Kochunaengi chungsik, etc. and how to use the special products of Muju such as yam, kochunaengi, wasabi and wild herb. The many kinds of cookery were specialized to cooks through manual and actual skills. And then we held a food contest that twenty-two cooks took part in the contest and there were exhibitted forty-two kinds of foods. Finally, through discussion and food contest, Muju Sanchae Bibimbap (meal which mixed rice with wild plants), Muju Sanchae chungsik (meal which has various wild plants with rice), Muju Kochunaengi Chungsik (meal which has various wild plants and wasabi with rice), Ma Naengmyun (cold yam noodle) and Muju Minmulmaeuntang (hot fish porridge) were recommended.

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Flour Quality Characteristics of Korean Waxy Wheat Lines

  • Hong, Byung-Hee;Park, Chul-Soo;Baik, Byung-Kee;Ha, Yong-Woong
    • 한국작물학회지
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    • 제46권5호
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    • pp.360-366
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    • 2001
  • Flour physicochemical properties of six Korean waxy wheat lines and their parental plants, including Kanto 107 and BaiHuo, which have partially null in GBSS (granule bound starch synthase), were evaluated in this study. The very low amylose content (3.20%) of Korean waxy wheat lines, which had been influenced by the null in all three GBSS isoforms encoded by three Wx loci, could result in the higher starch swelling power (25.15%), lower starch and flour pasting temperature (61.37$^{\circ}C$; 65.85$^{\circ}C$), and higher starch pasting peak viscosity and breakdown (246.60 RVU; 161.50 RVU) than those of their parental plants. In addition to high swelling and pasting properties, Korean waxy wheat lines had the higher protein content (12.80%), alkaline water retention capacity (97.39%), SDS sedimentation volume (80.33 $m\ell$) and damaged starch content (4.35 %) than those of their parental plants.

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다가알코올로부터 추출된 황금, 아카시아, 한라봉 추출물의 천연 방부시스템 연구 (Study of Natural Preservative System Using the Mixture of Scutellariae radix, Acacia nilotica and Citrus reticulata Extracted from Polyhydric Alcohols)

  • 박성민;이경아;윤미영;김영재;이상화
    • KSBB Journal
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    • 제26권6호
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    • pp.533-537
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    • 2011
  • The aim of this study was to develop a new natural preservative system to improve the weak points of natural polyhydric alcohols together with the efficiency of natural plants as a preservative. Polyhydric alcohols (glyceryl caprylate and ethylhexylglycerin) and antimicrobial plants (S. radix, A. nilotica and C. reticulata) were tested using the disc diffusion method and minimum inhibitory concentration (MIC) method for their antimicrobial activity against the common poultry pathogens, respectively. A study of the preservative efficacy of the cosmetic formulations containing the optimized preservative system demonstrated sufficient preservative efficacy against bacteria and eukaryotic test microbes. These results suggest that the natural preservative system including polyhydric alcohol extracts containing natural plants could be incorporated in cosmetic formulations.

Nutritional Requirements and Management Strategies for Farmed Deer - Review -

  • Shin, H.T.;Hudson, R.J.;Gai, X.H.;Suttie, J.M.
    • Asian-Australasian Journal of Animal Sciences
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    • 제13권4호
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    • pp.561-573
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    • 2000
  • Knowledge concerning the nutritional requirements and nutritional problems of fanned deer is limited. Nutritional recommendations must be based on data from domestic ruminants and fanned deer. An understanding of the biology and adaptative characteristics of wild deer is essential for sensible application of sheep and cattle nutritional principles. Nutritional requirements of deer are generally separated into five categories: energy, protein, minerals, vitamins and water. Research on deer nutrition has primarily focused on energy, protein and minerals (phosphorus and calcium). Changes in the nutritional requirements that occur with gestation, lactation, breeding and antler growth should be coordinated with seasonal changes in nutrient availability from forage plants. This paper describes aspects of current knowledge of energy, protein, minerals, vitamins and water requirements. Nutritional problems of. fanned deer are described with recommendations for prevention or control. A comparison of production efficiency of deer, lamb, beef cattle and dairy cattle is included.

A Preliminary Study on Hypocholesterolemic and Hypoglycemic Activities of Some Medicinal Plants

  • Choi, Jae-Sue;Chung, Hae-Young;Young, Han-Suk
    • 생약학회지
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    • 제21권2호
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    • pp.153-157
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    • 1990
  • Total cholesterol level in mice with hypercholesterolemia was determined after intraperitoneal administration of the methanolic extract of some medicinal plants. From the data obtained, it was suggested that the methanolic extract of Elaeagnus crispa, Ixeris dentata, Prunus davidiana, Eriobotrya japonice, Aralia elata and Phragmites communis produced a significant hypocholesterotemic effect. In the case of the extract of Saussurea diamantiaca, on the other band, the total cholesterol level was markedly increased. The methanolic extract of Ixeris dentata, Prunus davidiana and Phragmites communes also decreased the level of blood glucose in alloxan-diabetic male albino mice while that of Eriobotrya japonica, Allium tuberosum, Houttuynia cordata and Eucommia japonica did not produce this effect.

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Rhizobacteria-mediated Induced Systemic Resistance in Cucumber Plants against Anthracnose Disease Caused by Colletotrichum orbiculare

  • Jeun, Yong-Chull;Lee, Yun-Jeong;Bae, Yeoung-Seuk
    • The Plant Pathology Journal
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    • 제20권3호
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    • pp.172-176
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    • 2004
  • Bacterial isolates TRL2-3 and TRK2-2 showing anti-fungal activity in vitro test against some plant pathogens were identified as Pseudomonas putida and Micrococcus luteus, respectively. Pre-treatment with both bacterial isolates at the concentration 1.0$\times$ $10^7$ and $10^6$cfu/ml in the rhizosphere could trigger induced systemic resistance in the aerial part of cucumber plants against anthracnose caused by Colletotrichum orbiculare. However, the pre-treatment with the higher concentration at 1.0 $\times$ $10^8$ cfu/ml of both isolates could not induce resistance after challenge inoculation with C. orbiculare. As a positive control, the treatment with DL-3 amino butyric acid caused a remarkable reduction of disease severity whereas the lesions on the leaves of untreated plants developed apparently after the fungal inoculation. From these results, it was recomended that disease control using both bacterial isolates inducing systemic resistance in the field where chemical application is forbid.

Isolation and Identification of Phosphate Solubilizing Bacteria from Chinese Cabbage and Their Effect on Growth and Phosphorus Utilization of Plants

  • Poonguzhali, Selvaraj;Madhaiyan, Munusamy;Sa, Tong-Min
    • Journal of Microbiology and Biotechnology
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    • 제18권4호
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    • pp.773-777
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    • 2008
  • Phosphate solubilizing bacteria (PSB) were isolated from the rhizosphere of Chinese cabbage and screened on the basis of their solubilization of inorganic tricalcium phosphate in liquid cultures. Ten strains that had higher solubilization potential were selected, and they also produced indole-3-acetic acid, 1-aminocyclopropane-1-carboxylate (ACC) deaminase, and siderophores. The strains were identified to be members of Pseudomonas, by 16S rDNA sequence analysis. Seed bacterization with PSB strains increased the root elongation and biomass of Chinese cabbage in seedling culture, although they had no effect on phosphorus uptake of plants. The plant growth promotion by PSB in this study could be due to the production of phytohormones or mechanisms other than phosphate solubilization, since they had no effect on P nutrition.

Pharmacological Screening of Crude Extracts from Medicinal Plants (II)

  • Yook, Chan-Nam;Lee, Jae-Sug;Baek, Seung-Hwa
    • 동의생리병리학회지
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    • 제21권4호
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    • pp.1004-1009
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    • 2007
  • The effects of crude extracts from medicinal plants on biological activity were investigated. The crude ethanol extract of H. paucistipula inhibited the growth of the Gram positive bacterium Bacillus subtilis ATCC 19659, (2 mm inhibition zone at 150 ${\mu}g$/disc) and the dermatophyte Trichophyton mentagrophytes ATCC 28185, (7 mm inhibition zone at 150 ${\mu}g$/disc), and toxic to P388 murine leukaemia cells ($IC_{50}\;2.48\;{\mu}g/ml$ at 75 ${\mu}g$/disk). This crude ethanol extract of H. paucistipula is the strongest antimicrobial and cytotoxic activities against P388 murine leukaemia cells (ATCC CCL 46 P388D1).