• Title/Summary/Keyword: 영양물질

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Identification of Pelleting Materials and Effect of Nutrient Addition on the Germination of Pelleted Lettuce Seeds (상추 펠렛종자의 피복물질 탐색과 영양물질 첨가가 발아력에 미치는 영향)

  • Kang, Jum-Soon
    • Journal of Bio-Environment Control
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    • v.13 no.1
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    • pp.8-15
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    • 2004

  • Seedling mechanization of lettuce is known to be difficult due to the small seed size and the irregular seed shape. The purpose of seed pelleting is to make seedling mechanization possible by enlarging the seed size. After that, it can reduce seedling and thinning labours and can also save seeds. According to the results, there were significant differences on the percent germination and day to 50% final germination in accordance with the pelleting polymer. Among the pelleting polymer, gemination of seeds using polynimyl alcohol (PVA) was generally smooth, and followed by polyvinyl pyrrolidone (PVP), hydroxyethyl cellulose (HEC), methyl cellulose (MC), and wteen 80. The germination rate was also different according to the pelleting particulate matters. Generally, percent germination and speed of seed using the mixture of diatomaceous earth, talc and calcium carbonate were higher and faster than using other polleting materials, respectively. Thus, it should be suitable pelleting particulate matter for the pelleting of lettuce seeds. On the other hands germination of seeds using limestone, calcium oxide and benonite were low. The seed size of lettuce after pelleting was 33 times as large as the raw seed size. During the process of seed pelleting, netrient addition induced the decrement on the germination and the delay of germination speed. Also, there was differences in the germinability of pelleted seeds in accordance with the addition of nutrient sources. MS medium was generally lower than monosodium phosphate in inhibition of seed germination. Germination of pelleted seeds after priming was higher than the seeds without the treatment, and also showed the trend of early germination.

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중환자관리에서의 영양과 항산화 물질의 이용

  • 윤여규
    • Journal of Nutrition and Health
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    • v.25 no.4
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    • pp.326-329
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    • 1992

  • 항산제는 조직의 산화현상을 예방하거나 막음으로써 우리가 알고 있는 정도 이상의 손상을 줄이고 패혈증이나 다발성장기손상의 병변진행을 차단할 수가 있다. 이제부터는 항산화제 치료에 눈을 돌려 새로운 시대에 적응하여야 한다.

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