• Title/Summary/Keyword: 처리기간

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Studies on Physico-chemical Properties of Spreadable Liver Sausage during Storage Period (저장기간에 따른 퍼짐형 간 소시지의 이화학적 특성에 관한 연구)

  • Hong, Geun-Pyo;Lee, Sung;Min, Sang-Gi
    • Food Science of Animal Resources
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    • v.23 no.1
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    • pp.56-62
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    • 2003
  • This study was carried out to evaluate the physicochemical properties of spreadable liver sausage manufactured from ostrich and pork during storage. It was found that the changes in pH of all treatments increased significantly over 7 d, but did not show significant difference in the remaining periods. L-value deceased with liver sausage containing ostrich liver and ostrich meat, but others showed only slight increase during storage periods. Although a-value of liver sausage containing pork meat was higher than that containing ostrich meat over 7 d of storage; after this period the trend of a-value was inverse. However, b-value in all treatments did not show significant difference during storage periods. The initial average TBA-value of all products was below 0.1 mg/kg. However, TBA-value increased to about 0.63 mg/kg, and 0.77 mg/kg at 7 and 21 d, respectively. Hardness of liver sausage containing ostrich meat and pork liver was higher than that containing pork meat and ostrich liver. Cohesiveness and elasticity did not show significant changes during storage periods.

Change in quality attributes of fresh-cut potatoes with heat and browning inhibitor treatment during storage (열처리 및 갈변저해제 병용처리에 의한 신선편이 감자제품의 저장 중 품질특성 변화)

  • Song, Hye Jin;Kwon, Oh Yeoun;Kang, Bok-Hee;Hur, Sang-Sun;Lee, Dong-Sun;Lee, Sang-Han;Kang, In-Kyu;Lee, Jin-Man
    • Food Science and Preservation
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    • v.20 no.3
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    • pp.386-393
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    • 2013
  • This study was conducted to investigate the change in quality attributes of fresh-cut potatoes with heat and browning inhibitor treatment (CW: dip in the cold water for 30 sec at $4^{\circ}C$, HW: dip in the water for 60 sec at $55^{\circ}C$, AA: dip in the 0.1% solution of ascorbic acid for 60 sec at $4^{\circ}C$, HA: dip in the 0.1% solution of ascorbic acid for 60 sec at $55^{\circ}C$) during storage at $5^{\circ}C$. During storage, fresh-cut potatoes treated with HA showed the lowest value in surface color. PPO and PAL activities of fresh-cut potatoes treated with HA were gradually increased during storage. Hardness, weight loss, soluble solids content and moisture content had no significant difference between the treatments. In sensory acceptance, fresh-cut potatoes treated for HA marked the best quality. Conclusively, heat and browning inhibitor treatment showed the positive effect on browning inhibition while maintaining the quality of fresh-cut potatoes.

노계육의 화염처리에 따른 육질 및 저장 특성 변화

  • Chae, Hyeon-Seok;Yu, Yeong-Mo;An, Jong-Nam;Ham, Jun-Sang;Kim, Dong-Hun;Jeong, Seok-Geun;Lee, Jong-Mun;Choe, Yang-Il
    • Proceedings of the Korean Society for Food Science of Animal Resources Conference
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    • 2004.05a
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    • pp.269-273
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    • 2004
  • 본 연구는 노계육의 화염처리의 정도에 따른 육질 및 저장 특성의 변화를 구명하고자 수행하였다. 육질특성에서 hardness(경도)는 노계육의 가슴살에서 저장 1일에 화염처리를 하지 않는 처리구에서 4.72kg을 나타냈으며 중처리에서는 4.66kg, 강처리에서는 5.05kg으로 강처리구에서 가장 높게 나타났으나 저장기간이 경과할수록 오히려 강처리구에서 경도의 변화가 가장 크게 떨어져 저장 5일에 1.02kg까지 낮아졌다. 지방산패도(TBA)는 저장 5일에 최대로 증가하였으며 특히 화염처리 수준이 가장 높은 처리구(80PSI)에서 0.21mgMA/kg으로 가장 높은 값을 나타내었다. 단백질산패도(VBN)는 저장 5일에 화염처리하지 않는 처리구에서 4.94mg%를 나타냈고, 중 및 강처리구에서 각각 6.58, 6.57mg%으로 나타나 저장기간이 많을수록 화염처리수준이 증가할수록 값이 증가하는 경향을 나타냈었다. 총미생물 수에서 저장 3일에 화염처리하지 않는 구에서 $4.85Log_{10}\;CFU/cm^2$으로 나타났고, 화염처리 수준이 증가할수록 약간 감소하는 경향을 나타내어 강처리구에서 $4.55Log_{10}CFU/cm^2$수준을 나타냈다. 결과적으로 화염처리 수준이 증가할수록 육질의 경도, 지방산패도 및 단백질 변성도가 증가한 것으로 나타났고, 반면에 총 미생물 수는 저장기간이 경과할수록 낮아지는 것을 알 수 있었다.

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The Effect of Covering Materials on Prolongation of Green Period in Zoysiagrass and Cool-season Grass in Early Winter (피복이 한국잔디 및 한지형 잔디의 초겨울 녹색기간연장에 미치는 영향)

  • Lee Jae-Pil;Kim Seok-Jeong;Shin Seok-Hoon;Kim Doo-Hwan
    • Asian Journal of Turfgrass Science
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    • v.18 no.3
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    • pp.129-139
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    • 2004
  • This study conducted to find out the best way to prolong green period of Zoysiagrass and Cool-season grass from 1999 to 2001 in Korea. Treatments were control, vinyl, black shade net, green shade net, black shade net+vinyl, green shade net+vinyl, vinyl+black shade net, and vinyl+green shade net for Zoysiagrass. For cool-season grass, treatments were control, non-punched vinyl and punched vinyl. Data on temperature, light intensity, humidity, leaf color and chlorophyll were collected. Plot size was 2 by 2 and the experiment was conducted using completely randomized design with three replication. Zoysiagrass Green period of Zoysiagrass depended on temperature and light intensity than humidity. Effective method of prolongation of green period in Zoysiagrass was to covered it with vinyl during early October to early November, and then using vinyl+black shade net from end of November. Cool-season grass Effective method of prolongation of green period in Cool-season grass was by covering it with vinyl during mid-November to mid-December, and then using vinyl+black shade net from end of December.

Effect of Solid Matrix Priming on Germinability of Seeds of Peppers(Capsicum annuum L.) I. Duration and Temperature (Solid Matrix Priming 처리가 고추종자의 발아에 미치는 영향 I. 처리기간 및 온도의 영향)

  • Kim, Do-Hahn;Jeong, Sung-Woo
    • Journal of agriculture & life science
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    • v.43 no.5
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    • pp.1-8
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    • 2009
  • Treatment duration of 12 pepper species by 3, 5, 7 days examined result, optimum processor of 12 pepper cultivars and carrier : water proportion was difference in species. However, radicle protrusion during priming(RPDP) does not happened and heightens germination rate, and Wang and Manitta species were 1:3(ratio), 7 day by treated that can shorten $T_{50}$, and all of the 10 cultivars were regard to processing of 1:7(ratio), 3 days was make satisfactory progress. Also cultivars of Jongggip was investigated by cultivars which germination rate and $T_{50}$ according to treatment duration and water proportion was irregular tendency than other cultivars. It was suggested that $20^{\circ}C$ was stable to radical protrusion and improved germination, while from $15^{\circ}C$ to $35^{\circ}C$ examined.

Conditions for Solid Matrix Priming of Carrot Seeds and Physiological Changes in the Seed During the Treatment (당근 종자의 Solid Matrix Priming 적정 조건구명과 처리중 종자의 생리적 변화)

  • Cho, Jeoung-Lai;Lim, Jong-Min;Kang, Sung-Mo;Kang, Jum-Soon
    • Horticultural Science & Technology
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    • v.19 no.4
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    • pp.505-510
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    • 2001
  • To improve germinability of carrot seeds of 'Inari', 'Mansan', 'Mussang', and 'Hongsim' cultivars, various levels of solid matrix priming (SMP) and the physiological changes of seeds associated with SMP were examined. As the ratio of water in a seed-Micro Cel E-water mix and priming duration increased, seed germinability enhanced. However, there was radicle protrusion during SMP in some cultivars, indicating the existence of cultivar different variations of the optimum conditions. The optimum ratio for a seed-Micro Cel E-water mix was 5 : 3 : 10.5. In this mix, the optimum durations for the treatment were 3 days for 'Mansan' and 5 days for other cultivars. SMP at $20^{\circ}C$ to $25^{\circ}C$ resulted in a higher germination percentage and a shorter $T_{50}$. Seeds absorbed water quickly within an hour and the percentage of moisture was stable at 43 to 49 after 24 hours of the treatment. Conductivity of the mix declined for the first 6 hours to $100{\mu}S{\cdot}cm^{-1}$ with little changes thereafter. On the other hand, the pH of the mixed increased slightly during the early phase, and then returned to the initial level as the treatment proceeded.

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Effect of change in forest environment on water storage capacity in soil and streamflow (산림환경 변화가 토양내 수저유능력과 유출에 미치는 영향)

  • Nam, Yi;Park, Seung-Ki
    • Journal of Korea Soil Environment Society
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    • v.2 no.2
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    • pp.35-51
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    • 1997
  • To clarify the effect of forest environmental changes (forest type difference and clearcut) on water storage capacity in soil and stream flow, watershed had been investigated in Pyungchang, Kangwon-Do during 1983∼1993. Hydrological datas such as runoff, monthly ratio of runoff to precipitation, runoff-duration, monthly runoff(by plenty, ordinary, low and scanty duration), total runoff, direct runoff by runoff components, bulk density, porosity, coarse pore, fine pore, permeability and effective water storage were obtained from Backokpo and Yimokjong watersheds. The monthly ratio of runoff to precipitation, runoff and runoff-duration were higher in Yimokiong than in Backokpo due to forest type difference. On compararing pre-treatment with trement period in two experimental watersheds, pre-treatment period was lower than treatment period. Physical properties of soil such as bulk density, porosity, permeability, and effective water storage capacity conditions were better during the pre-trement period than treatment period in the two experiment plots.

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가교화 ${\beta}-Cyclodextrin$ 을 이용한 콜레스테롤 제거 크림치즈의 연구

  • Han, Eun-Mi;Kim, Song-Hui;An, Jeong-Jwa;Gwak, Hae-Su
    • Proceedings of the Korean Society for Food Science of Animal Resources Conference
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    • 2004.10a
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    • pp.358-362
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    • 2004
  • 본 연구에서는 가교화 ${\beta}-CD$로 크림치즈의 콜레스테롤을 효과적으로 제거하는 실험을 수행 하였으며, 크림치즈의 이화학적 변화와 관능적 특성을 살펴보았다. 크림치즈를 만들기 위한 유지방 함량 36%의 크림을 가교화 ${\beta}-CD$로 처리 시 콜레스테롤 제거 최적 조건은 가교화 ${\beta}-CD$ 10%를 첨가해 교반온도 $20^{\circ}C$, 교반시간 30분, 교반속도 800rpm으로 실험한 결과 콜레스테롤 제거율이 평균 82.0%로 나타났다. 가교화 ${\beta}-CD$처리 크림치즈는 short-chain fatty acid의 경우 저장 기간이 지남에 따라 control과 powder ${\beta}-CD$ 처리한 크림치즈에 비해 저급 지방산 생성에 변화가 거의 없고, 쓴맛을 내는 아미노산의 경우 저장 기간 동안 control과 powder ${\beta}-CD$처리 크림치즈에 비해 생산량이 현저하게 적었다. 또한 가교화 ${\beta}-CD$처리 크림치즈의 조직검사에서 다른 항목에서보다 저장 기간 동안 응집성이 변함이 없으며 그 수치가 높게 평가되었다. 관능검사 결과, 가교화 ${\beta}-CD$처리 크림치즈는 저장 기간 동안 쓴맛의 증가가 거의 없었고 전체적인 기호도 또한 높았다. 위 실험 결과에 따르면, 가교화 ${\beta}-CD$ 사용결과 cholesterol 제거율이 높으며, 제품에 적용시 재활용이 가능하고 품질이 향상되므로 이를 유가공 산업에 활용이 가능할 것으로 기대된다.

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Studies on the Chilling Injury of Rice seedlings. 1. Characterization of Chilling Injury & Recovery Different Leaf Stages (수도의 유초기 냉해에 관한 연구 1. 유묘기 엽령별 냉해발현 및 회복양태)

  • Kwon, Y.W.; Kim, J.H.;Ahn, S.B.
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.24 no.1
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    • pp.11-24
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    • 1979
  • To characterize elastic and plastic chilling injury, rice seedlings grown at 28/$16^{\circ}C$ day/night temp. under 20K lux (13hrs.) in a phytotron were subjected to a 11/$6^{\circ}C$, 20K lux condition for 2, 4, 6 or 8 days at 1, 2, 3, 4 or 5th leaf-stage, respectively, followed by further growth under 28/$16^{\circ}C$condition till 30th day after seeding. Japonica variety Jinheung and Chulwon No.1 survived almost 100% without any significant , discoloration and death of leaves due to chilling even under the chilling of 8 days at all seedling ages tested. Tongil and Yushin, varieties from Indica x Japonica cross, showed increasing discoloration of leaves and death of plants with increase in chilling intensity. The longest chilling duration shown seedling death less than 5% was 4, 6, 1, 4, 8 days for Tongil, and 6, 6, 1, 2, 2, days for Yushin at 1, 2, 3, 5th leaf-stage, respectively. The degree of discoloration and death of leaves or suppression of height growth was not explicitly related to seedling death or the dry weight reduction. The degree of seedling death or dry weight reduction could differentiate chilling tolerance of varieties and seedling ages, but somewhat differently. Reduction in dry weight due to chilling occurred even without any visible injury or seedling death. These suggest that both the degree of seedling death and reduction in dry weight should be considered in the test of varieties for chilling tolerance. Combined evaluation of seedling death and dry weight reduction indicated the most susceptible seedling age to chilling injury to be 1 to 2nd leaf-stage for Jinheung, 2 to 3rd leaf-stage for Chulwon No.1, 3rd leaf- stage for Tongil and Yushin, respectively.

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A Study on Corporate Record Types and Retention Periods : Focusing on Legal Analysis (기업 기록 유형과 보존기간 연구 법령 분석을 중심으로)

  • Oh, SungJin
    • The Korean Journal of Archival Studies
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    • no.79
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    • pp.389-442
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    • 2024
  • In order to establish a corporate records schedule, this study identifies the types of records and retention periods specified by domestic laws for companies to retain, reviews the significance and characteristics of the results, and proposes establishing a corporate records schedule. To this end, this study identified the company's management activities, prepared a record survey for legal analysis, and extracted the record types and retention periods necessary for the company's management activities through a review of various laws. Next, this study looked at the meaning and characteristics of the types of records and retention periods required by companies. Finally, based on the analysis results, a method for establishing a corporate record processing schedule was proposed.