• Title/Summary/Keyword: storage disorder

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Optimized Controlled Atmosphere Regimen for Storage of Fresh Fischer's Ligularia (Ligularia fischeri Turcz.) Leaves (신선 곰취(Ligularia fischeri Turcz.) 잎 저장을 위한 CA 조성 최적화)

  • Park, Yoon-Moon;Kim, Taewan;Kim, Hyun-Seok;Kim, Tae Hoon;Park, Yoo Jin
    • Horticultural Science & Technology
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    • v.33 no.3
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    • pp.375-382
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    • 2015
  • A controlled atmosphere (CA) regimen was optimized during 3 consecutive harvest seasons as the basis of practical modified atmosphere packaging (MAP) storage for quality maintenance and extension of storage potential of fresh Ligularia fischeri leaves. Leaves were harvested in April or May and forced-air cooled to $4^{\circ}C$ before punch-hole MAP (control, where gas concentrations were same as air) and CA treatments. CA regimens adjusted stepwise during 3 experimental years were: 1 and 3% $O_2$, respectively combined with 5 and 10% $CO_2$ in the first year, 3% $O_2$ fixed in combination with 0, 2.5, and 5% $CO_2$ in the second year, and 3% $O_2$ fixed in combination with 2.5 and 5% $CO_2$ in the third year. In the first year, higher incidence of black discoloration was observed with the reduction of respiration under 10% $CO_2$ CA conditions regardless of $O_2$ levels at 1 or 3%. In the second and third year, the incidence of the disorder seemed not to be clearly relevant to CA conditions showing slightly higher incidence only after 4- or 5-week storage + 5-day shelf life. Although texture and appearance quality were maintained better under the 3% $O_2$ + 2.5% $CO_2$condition after 4-week storage + 5-day shelf life, effects of CA on the extension of storage period was slight. Overall results indicated that Ligularia fischeri leaves are very susceptible to $CO_2$ injury. $CO_2$ concentration should be adjusted below 2.5% for safe and effective CA or MAP storage to maintain quality even during short-term storage.

Status of High Risk Group Fabry Disease Screening in Korea by Measuring Globotriacocylceramide in Body Fluid using Electrospray-MS/MS (탠덤매스에의한 체액 중 Globotriaocylceramide(Gb-3)의 측정을 이용한 한국인 고 위험도군에서의 파브리병 스크리닝)

  • Yoon, Hye-Ran
    • YAKHAK HOEJI
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    • v.55 no.1
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    • pp.56-63
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    • 2011
  • Fabry disease (FD) is an X-linked inborn error of glycoshpingolipid metabolism resulting from mutation in the enzyme ${\alpha}$-galactosidase A gene. The disease is an X-linked lipid storage disorder and the lack of ${\alpha}$-Gal A causes an intracellular accumulation of glycosphingolipids, mainly globotriaosylceramide (Gb-3). Measurement of Gb-3 in plasma has clinical importance for monitoring after enzyme replacement therapy for confirmed FD patients. Using electrospray ionization MS/MS we had developed, a simple, rapid, and highly sensitive analytical method for Gb-3 in plasma was used for the purpose of screening FD among high risk groups in Korean population. To date, no comprehensive results for FD screening have been performed and reported in Korea. We screened 1,100 outpatients from 13 hospitals (including clinics) to assess the incidence of FD among patients in high risk groups. For patients with borderline level amount of Gb-3, we repeated Gb-3 or performing complementary or confirmative assay with ${\alpha}$-Gal A activity and DNA mutaion analysis for confirmation diagnosis. Of 1,100 we diagnosed 3 FD with 2 classical type and 1 carrier (0.27%).

A Literature Review of Korean Medicine Treatment for Neurogenic Bladder: Focusing on Clinical Approach (신경인성방광의 한의학적 치료에 대한 문헌 고찰)

  • Park, Jeong-Hyun;Jeong, Su-Hyeon
    • Korean Journal of Acupuncture
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    • v.38 no.3
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    • pp.111-121
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    • 2021
  • Objectives : The aim of this study is to investigate Korean Medicine treatment for neurogenic bladder. Methods : We used 8 electronic databases to search for articles dealing with Korean Medicine treatment for neurogenic bladder. As a result, 12 case reports were adopted and we analyzed treatment method reported in articles. Results : Acupuncture and herbal medicine were most commonly used method (12 times), followed by moxibustion (8 times), and pharmacopuncture (4 times). BL31, BL32, BL33 and BL34 for acupuncture, CV4 for pharmacopuncture and moxibustion were most frequently used acupoints. Yungmijihwangtang and Oryeong-san were the most used herbal medicine. Conclusions : All included cases in this study showed improvement and this study showed the possibilities that Korean Medicine treatment would be effective for neurogenic bladder. However, further studies should be conducted for comparison and analysis of effect on various Korean Medicine treatment.

Market Quality Changes of 'Fuji' Apples Influenced by the Duration of Preshipment Storage and Packaging during Simulated Export (수출 전 저장기간과 모의 수출에 따른 '후지' 사과의 상품성 변화)

  • Piao, Yi-Long;Lee, Jae-Chang;Hwang, Yong-Soo
    • Korean Journal of Agricultural Science
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    • v.29 no.1
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    • pp.15-23
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    • 2002
  • The percentage of watercore occurrence harvested on Nov. 6 (commercial harvest season) was over 80% but fruits seemed not to reach climacteric stage on the basis of ethylene evolution. The occurrence ratio and severity of watercore gradually decreased with the increase of preshipment storage for 2 months. The level of soluble solids did not show a clear tendency during preshipment storage but flesh firmness, fresh weight, and acidity gradually decreased. Although the overall quality of fruit reduced along with the increase of preshipment storage duration after exposure to retail condition at ambient temperature for 1 week, plastic film wrapping (PE 30 um) as well as plastic film wrapping plus ethylene scrubbing had a benefit on keeping freshness of fruit even after retail condition. Waxed fruit showed excellent appearance but browning disorder was developed. Results indicated that moisture barrier such as plastic film wrapping and ethylene removal have a great potential on keeping freshness of fruit during export which required long-term transport under low humidity environment.

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A Case of Glycogen Storage Disease IV with Rare Homozygous Mutations in the Glycogen Branching Enzyme Gene

  • Choi, So Yoon;Kang, Ben;Choe, Jae Young;Lee, Yoon;Jang, Hyo Jeong;Park, Hyung-Doo;Lee, Suk-Koo;Choe, Yon Ho
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • v.21 no.4
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    • pp.365-368
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    • 2018
  • Glycogen storage disease (GSD) IV is a rare autosomal recessive inherited disorder caused by mutations in the gene coding for glycogen branching enzyme leading to progressive liver disease. GSD IV is associated with mutations in GBE1, which encodes the glycogen branching enzyme. We report a case of GSD IV with rare homozygous mutations in the GBE1 gene (c.791G>A (p.Gly264Glu), which was successfully treated by liver transplantation.

Effect of Frost Injury in Harvest Season and Temperature Condition of Orchard on Storage Characteristics of Persimmon (Diospyros kaki 'Fuyu') Fruit (단감 '부유' 과실의 저장특성에 미치는 수확기 동상해 및 과수원 온도조건의 영향)

  • Kwack, Y.B.;Kim, S.H.;Ahn, K.H.;Lee, C.H.;Kang, S.K.
    • Journal of Practical Agriculture & Fisheries Research
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    • v.23 no.1
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    • pp.67-80
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    • 2021
  • We analyzed the effect of planting site (elevation: high, middle, low) and temperature condition of orchard on the frost injury occurrence and storage characteristics of persimmon (Diospyros kaki cv. 'Fuyu) fruits under an early fall frost at two orchards, Changwon (A) and Changnyeong (B), Gyeongsangnam-do Korea. Also, the fruits picked at Nov. 5 and Nov. 20 were MA stored to investigate the quality and chilling injury of fruits. On 2-way factor analysis, both planting elevation and orchard factor had not a significant effect on fruit characteristics (weight, firmness, soluble solid), while planting elevation factor did on the skin color (hunter 'a')(p<0.05). A fruit skin coloration at orchard A was faster than that at orchard B. At low elevation of orchard B, 2% fruits were frost injured at harvest season. On LDPE film MA storage with the fruits harvested at Nov. 5 and Nov. 20, the fruits at orchard A had higher fruit firmness than those of orchard B during storage. In addition, the 73% (orchard A) and 85%(orchard B) fruits harvested at Nov. 5 showed no chilling injury 80 days after storage. However, At harvest of Nov, 20 (after incidence of frost), only the 14% fruits of orchard B had no the chilling disorder 80 days after storage, even though 76% fruits at orchard A did.

Genetic and Molecular Mechanisms in the Neuronal Ceroid-Lipofuscinoses (유전질환 신경 세로이드 리포푸신증들에 대한 고찰)

  • Lee, Min-Young;Kim, Dong-Hyun;Yoon, Dong-Ho;Kim, Han-Bok;Park, Joo-Hoon;Lee, Hwan-Myoung;Kim, Sung-Hoon;Kim, Sung-Jo
    • Development and Reproduction
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    • v.13 no.2
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    • pp.63-77
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    • 2009
  • The neuronal ceroid-lipofuscinoses (NCLs) are a kind of neurodegenerative storage disorders. The NCLs are charecterizated by accumulation of autofluorescent lipofuscin or lipopigment in the brain. All NCL group belongs to in lysosomal storage disorders (LSDs), except Northern epilepsy. NCLs are the most common group of progressive neurodegenerative disorders in childhood, with an incidence as high as I in 12,500 live births. Four main clinical types have been described based on the onset age : infantile, late infantile, juvenile and adult types. Clinical symptoms of NCLs include loss of vision, seizures, epilepsy, progressive mental retardation and a premature death. Although mutation causes neurodegeneration in NCLs, the molecular mechanism by which mutation leads to neurodegeneration remains unclear. In this paper, we review the characteristics of these NCLs.

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Effect of Ethylene Scrubber in Polyethylene Film Wrap on the Storage of 'Tsugaru' Apples (플라스틱 필름포장 내 에틸렌제거가 사과 '쓰가루' 과실의 저장 품질에 미치는 영향)

  • Hwang, Yong Soo;Chun, Jong Pil;Lee, Jae Chang
    • Korean Journal of Agricultural Science
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    • v.25 no.1
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    • pp.19-25
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    • 1998
  • This study was conducted to develop an appropriate postharvest technique to extend the shelf-life of an early cultivar, 'Tsugaru' apples. The general quality of stored fruit was more affected by maturity at harvest than postharvest treatments. When firmness and internal quality were considered, fruits harvested at the medium stage of color development showed better results. Between postharvest treatments examined in this study, a simple polyethylene film(PE) wrapping (30um) was excellent on inhibition of weight loss but this treatment revealed no clear effect on other quality factors including firmness and acidity. Ethylene scrubber(ES) in polyethylene wrapping showed a positive effect on keeping fruit quality in general. Especially acid content was higher in fruit stored with PE + ES, thus, fruit seemed to be better in freshness. A physiological disorder was observed regardless postharvest treatments. The symptom was associated with incidence of pitting on surface and breakdown of the effected tissue. And much more symptoms were developed near the calyx end. Thus, future studies concerning 'Tsugaru' storage should include an examination of the optimum storage temperature.

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The Effect of Mechanical Grinding or Electrochemical Properties of $CaNi_5$ Hydrogen Storage Alloy ($CaNi_5$ 수소저장합금의 전기화학 특성에 미치는 MG 처리 효과)

  • Lee C. R.;Kang S. G.
    • Journal of the Korean Electrochemical Society
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    • v.2 no.2
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    • pp.106-111
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    • 1999
  • The effect of the MG on the electrochemical charge-discharge properties of $CaNi_5$ hydrogen storage alloys was investigated under Ar and $H_2$ atmosphere. $CaNi_5$ alloy was partially decomposed to CaO and Ni phase during the MG process. The decomposition of $CaNi_5$ alloy was enhanced by the MG process which leads to crash and reformation of oxide layer on the alloy surface. As the MG process time increased, initial discharge capacity of the electrode was reduced, but the decay rate of the capacity compared to $CaNi_5$ alloys was slower. It may be described that the degradation of $MG-CaNi_5$ electrode was caused by the reduction of the reversible hydrogen reaction sites and increasing polarization resistance of hydrogen adsorption resulted from phase decomposition and disorder during the MG process, and/or by hydroxide formation during the electrochemical charge-discharge cycles.

Anatomical Studies on the Classification of Cultivated Peony in Korea (재배작약의 분류에 관한 해부학적연구)

  • Yu, Seung-Jo
    • Korean Journal of Pharmacognosy
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    • v.1 no.3
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    • pp.81-92
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    • 1970
  • So far, the cultivated peony is known to be originated from an indigenous species, Paeonia albiflora $P_{ALLAS}$ var. trichocarpa $B_{UNGE}$ (PAT). In this study, these two species were morphologically examined in the external and internal feature and in the pattern of callus formation by tissue culture. Also, they were compared with another indigenous species, P. japonica $M_{IYABE}$ et $T_{AKEDA}$ var. pilosa $N_{AKAI}$ (PJ), which were regarded as being scarcely related to them. The root of the cultivated peony is massive consisting with several storage roots, each of them is a hypotrophic and fusiform. The root of PAT consists of several storage roots, each of them is branching and slender. And the storage root of PJ is short, bended buried horizontally, protruding a number of corpulent lateral root. The secondary xylem of the cultivated peony is small clusters of vessels and xylem fibres are arranged in scalariform and among these cluster, single vessel is joined, but that of PAT is small clusters of vessels are arranged in separate scalariform but are not connected with each other and that of PJ is vessels and xylem fibers are grouped together in elongated clusters that radiate outward from the center. Protoxylem of the cultivated peony is surrounded by four large metaxylem, but that of PAT and PJ by seven. On the other hand, the callus formation patterns of these peonies were different; the cultivated peony callus is formed in an orderly fashion by the mammalate meristematic cell groups, PAT callus is in disorder by the meristematic cells arranged in linear, and PJ callus is in order by the meristematic cells arranged in linear. By the comparison of three different plants in the anatomical appearance and the callus formation pattern, it is evident that the cultivated peony is not derived from PAT.

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