• Title/Summary/Keyword: Non-branching

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Influence of Preheating on Quality Changes of Fresh-cut Muskmelon (가공 전 열처리가 Fresh-cut Muskmelon의 품질변화에 미치는 영향)

  • 박연주;문광덕
    • Food Science and Preservation
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    • v.11 no.2
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    • pp.170-174
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    • 2004
  • Whole muskmelon was blanched at 50$^{\circ}C$ water for inhibition decline of fresh-cut melon quality from direct heat treatment. The muskmelon, after storage at 5$^{\circ}C$ for 24 hours, was processed to melon cylinders with 2 cm diameter. The changes of color, texture and the quality characteristics such as gas composition. soluble solid content, pH during storage at 5$^{\circ}C$ were measured. Degree of oxygen contents decreased and that of carbon dioxide in melon cylinder increased during storage. Especially, changes of gas composition inside packages appeared high level cor in blanched melon cylinders than non-treatment melons. Blanching with whole fruits at 50$^{\circ}C$ had effects on hardness in melon cylinder. Blanched melon, without regard on branching time, appeared higher hardness value than that of non-blanched melon at 6 days storage. There were slight difference between treatment on melon cylinder color. Degrees of change in soluble solid contents and pH on melon cylinder blanched at 50$^{\circ}C$ for 20minuets were lower than that of other treatments. In consequence, blanching with whole fruit at 50$^{\circ}C$ for 20minuets, before minimal processing, was effective in preserving of texture and quality of melon cylinder during storage.

A Case of Primary Diffuse Nodular Pulmonary Amyloidosis Localized in the Lung (원발성 결절성 폐실질형 유전분증 1예)

  • Jung, Sung-Kwoen;Oh, Joon;Roh, Yang-Won;Kong, Hee-Sang;Park, Kae-Young;Park, Jeong-Woong;Park, Jae-Kyung;Nam, Gui-Hyun;Ha, Seong-Hwen;Lee, Han-Kyung;Jeong, Seong-Hwan
    • Tuberculosis and Respiratory Diseases
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    • v.49 no.3
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    • pp.365-371
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    • 2000
  • Nodular pulmonary amyloidosis is one of the rare manifestation of amyloid disease. It is known to be caused by amyloid L fibrils in the majority of cases. We experienced an unusual case of a forty-one year-old woman who was presented with multiple nodular lesion on the chest X-ray. CT-guided core needle biopsy, performed on the lesion, showed apple green birefringes, when stained Congo red and examined under polarized light, Ultrastructurally, there are randomly oriented, forming densed networks, and consists of fine, 7.5 to 10nm diameter, rigid, non-branching filaments of various lengths in electron-microscopic finding. We report a case of primary diffuse nodular pulmonary amyloidosis only localized in the lung, which was confirmed by CT guided core needle biopsy.

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L-Leucine Production using Amino Acid Analogues-resistant Mutants of Corynebacterium glutamicum (Corynebacterium glutamicum 아미노산 유사체 저항성 돌연변이 균주에 의한 L-로이신의 생산)

  • 김용욱;신현철;성진석;전영중;고중환;이재흥
    • Microbiology and Biotechnology Letters
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    • v.26 no.1
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    • pp.45-49
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    • 1998
  • Two kinds of Mutants of Corynebacterium glutamicum, which were resistant to branched chain amino acid analogues, were obtained for L-leucine production; C. glutamicum LT26 resistant to 4-azaleucine and $\alpha$-amino-$eta$-hydroxyvaleric acid, and from which C. glutamicum LT3811-70 resistant to DL-4-thiaisoleucine were derived. Accumulation of L-leucine in the culture broths of these mutant strains, C. glutamicum LT26 and LT3811-70, were much higher than those of their parent strains even though they were non-auxotrophic mutants. Enzymatic analyses were performed to measure the activities of $\alpha$-acetohydroxy acid synthase (AHAS) and $\alpha$-isopropylmalate synthase (IPMS), which were the key enzymes for the L-isoleucine, L-valine and L-leucine biosynthetic pathways branching from a common precursor. In C. glutamicum LT26 and LT3811-70, AHAS and IPMS were found to be derepressed and desensitized to L-leucine. In addition, in C. glutamicum LT3811-70, IPMS was further more derepressed by L-leucine and AHAS was more desensitized by L-isoleucine and L-valine compared to its parent strain, C. gIEitamicum LT26.

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Changes of Antioxidant Contents during Grain Filling in Different Plant Types of Sesame (참깨 초형별 등숙에 따른 항산화성분 함량의 변화)

  • Ryu, Su-Rho;Lee, Jung-Il;Choi, Chang-Yeol;Kang, Sam-Sik
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.38 no.1
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    • pp.23-30
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    • 1993
  • This study was conducted to obtain the fundamental information on antioxidant component as affected by process of grain filling in different plant types of sesame. Sesamin and sesamolin as antioxidant components, oil content and seed weight were investigated for two plant types with different by branching habit. The sesamin and sesamolin contents in grains followed a pattern of increase immediately after flowering in branch type and monocapsule habit than non-branch type and tricapsule habit. But they started to decrease around 45 days after flowering, which oil content and seed weight continued to increase until maturity. The sesamin content increased quickly up from 10th to 40th day after flowering and showed almost maximum at 43th day after flowering. The sesamolin content increased quickly up from 20th to 30th day after flowering and showed almost maximum at 45th day after flowering. The oil content increased quickly up from 20th to 30th day after flowering and showed almost maximum at 47th day after flowering. The seed weight increased quickly up from 20th to 40th day after flowering and showed almost maximum at 48th day. The sesamin content, sesamolin content, oil content and seed weight showed almost maximum at from 43th to 48th day after flowering. So that this period was considered to be of physiological maturity.

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Assessment of Substantial Equivalence and Environmental Risk for Event Selection of Genetically Modified Chrysanthemum (국화의 GM 이벤트 선발을 위한 실질적 동등성 및 환경위해성 평가)

  • Lim, Jin Hee;Shim, Myung Syun;Oh, Kwan Hun;Seo, Ji Yeon;Lee, Su Young;Park, Sang Kun;Shin, Hak Ki;Cho, Myoung Rae
    • Horticultural Science & Technology
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    • v.32 no.4
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    • pp.517-524
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    • 2014
  • As an assessment of substantial equivalence and environmental risks of branchless chrysanthemum GM lines (LeLS69, LeLS76, LeLS80) developed in Korea, we investigated their degree of branchlessness and developmental characteristics including growth and flowering, as well as the stability of populations of insect pests and soil microbes. The GM lines were compared with a control variety, 'Jinba'. LeLS80 showed the highest level of branchlessness among the three GM lines, whereas abnormal axillary buds developed in lines LeLS76 and LeLS69. There were no significant differences between the growth characteristics of 'Jinba' and the GM lines. The branchlessness LeLS80 was increased during the summer season, suggesting that it is a useful germplasm for developing elite branchless cultivars. These GM lines showed no significant differences in the occurrence of five insect pests including aphids, mites, leaf miners, thrips, and whiteflies. Similarly, for soil microbes including bacteria and actinomycetes, there were no significant differences between 'Jinba' and the GM lines. However, there was a higher occurrence of fungi in the GM lines compared to 'Jinba'. Our findings suggest that 'Jinba' and the GM lines are substantially equivalent, although further monitoring studies are needed to confirm this.