• Title/Summary/Keyword: Storage Condition

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Effects of Pretreatments and Storage Conditions on Quality and Vase Life of Cut 'Red Sandra' Rose (전처리와 저장조건이 절화장미 'Red Sandra'의 품질과 수명에 미치는 영향)

  • Bang, Chang-Seok;Song, Cheon-Young;Lee, Jong-Suk;Huh, Kun-Yang;Song, Jeong-Seob
    • Horticultural Science & Technology
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    • v.17 no.6
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    • pp.762-764
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    • 1999
  • This experiment was conducted to investigate the effect of pretreatments and storage conditions on quality and vase life of cut 'Red Sandra' rose (Rosa hybrida L.). 'Red Sandra' rose flowers were harvested and pulsed with distilled water, 0.2% RVB or 200ppm aluminum sulfate+3% sucrose+50ppm $AgNO_3$+0.1mM ethionine for 22 hours and then stored in wet or dry condition for 12, 24, 48 hours at low or room temperature. Pulsing with aluminum sulfate+sucrose+$AgNO_3$+ethionine delayed bent-neck, increased solution absorption and flower diameter, and prolonged vase life rather than pulsing with distilled water or RVB. Storage in wet condition or low temperature also delayed bent-neck, increased solution absorption and flower diameter, and prolonged vase life compared with storage in dry or room temperature condition. As the storage hours prolonged, solution absorption, flower diameter, and vase life were decreased especially pulsing with distilled water. Pulsing with aluminum sulfate+sucrose+$AgNO_3$+ethionine prolonged vase life compared to pulsing with distilled water or RVB regardless of storage conditions and shipping hours.

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Changes of Storability and Quality Characteristics of 'Autumn Sense' Hardy Kiwifruit According to Ethylene Treatment and Storage Condition (에틸렌 처리와 저장조건에 따른 '오텀센스' 다래의 저장성 및 품질특성 변화)

  • Oh, Sung-Il;Kim, Chul Woo;Kim, Mahn-Jo
    • Journal of Korean Society of Forest Science
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    • v.103 no.3
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    • pp.368-374
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    • 2014
  • This study was investigated the changes of storability and quality characteristics of 'Autumn Sense' hardy kiwifruit according to ethylene treatment and storage condition. In the results of investigation of changes in hardy kiwifruit quality during storage period, hardness of ethylene treated hardy kiwifruit during 48 and 96 hours was rapidly decreased, but soluble solid content was rapidly increased with the passing of storage period in all treatment groups. The total acid was estimated from 0.7 to 1.4% with storage period in all treatment groups. In the results of investigation of the weight loss rate, ethylene treated hardy kiwifruit during 48 hours was the highest 30.9% in storage at $20^{\circ}C$ and lowest 5.9% in storage at $2^{\circ}C$ with a relative air humidity of about 90% during storage at 24 days. Ethylene treated hardy kiwifruit during 96 hours was decrease 29.4% in storage at $20^{\circ}C$, 20.7% in storage at $4^{\circ}C$, 12.1% in storage at $2^{\circ}C$, and 6.0% in storage at $2^{\circ}C$ with a relative air humidity of about 90% during storage at 22 days. The taste of hardy kiwifruit during storage was reduced to increase in all treatment groups. Particularly, storage at $20^{\circ}C$ was rapidly reduced to increase in the early storage and storage at $2^{\circ}C$ with a relative air humidity of about 90% was decrease after storage at 18 days. The rotten rate during storage was increased in all treatment groups, storage at $20^{\circ}C$ was after storage at 2 days and storage at $2^{\circ}C$ with a relative air humidity of about 90% was rapidly increased after storage at 16 days. Thus, it can be recommended that storage at $2^{\circ}C$ with a relative air humidity of about 90% is good to maintain quality. Also, we will decide optimal storage condition and after-ripening time of 'Autumn Sense' hardy kiwifruit.

Effect of Diluents on the Short-Term Storage of Sperm in Black Seabream, Acanthopagrus schlegeli (희석액별 감성돔, Acanthopagrus schlegeli 정자의 단기보존 효과)

  • LIM Han Kyu;KHO Kang Hee;CHANG Young Jin
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.30 no.2
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    • pp.211-215
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    • 1997
  • Experiments were performed to find out the proper conditions of diluents for the short-tenn storage of sperm of black seabream, Acanthopagrus schlegeli. For milt collection, brood stock was reared in a recirculating seawater system. The following results indicated that short-term storage methods with fresh condition could tie employed in black seabream sperm. When the black seabream's serum was used as a diluent for the fresh storage, sperm activity index (SAI), fertilization rate and survival rate derived the best result in $7\~10\;days$ of storage. pH 7 and 8 showed the highest SAI in the same storage condition. In order to keep high SAI and survival rate of the sperm, addition of 800 ppm neomycine into the diluent revealed the best storage results.

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Shelf-life of Red Chili Pepper on MA and CA Storage (MA 및 CA저장에 의한 생홍고추의 저장성)

  • Lee, Ka-Soon;Lee, Joo-Chan;Lee, Jong-Kuk;Han, Kyu-Heung;Oh, Man-Jin
    • Food Science and Preservation
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    • v.7 no.2
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    • pp.139-144
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    • 2000
  • In order to extend the shelf-life of red chili pepper, MA and CA technology were used. In MA storage, red chili peppers(Jinmi and Jangkun) were packaged in 0.03 mm PE film bags(3 kg/bag) having two holes(${\sigma}$2~3 cm) at 2~3$^{\circ}$C or 7~8$^{\circ}$C. In CA storage, red chili peppers(Jinmi) were stored on following gas composition; 5 or 10% CO$_2$ in combination with 2 or 5% O$_2$ at 2~3$^{\circ}$C, respectively. The changes of weight loss and decay rates during MA storage were less in Jinmi than in Jangkun and less at 2~3$^{\circ}$C storage(except O$_2$ 5%, CO$_2$ 10% condition) while in CA it decreased after 40 days of storage. Red chili peppers would be stored for 30 days when stored in MA conditions(0.03 mm PE film bag) and for 60 days when srored in CA condition on O$_2$ 2%, CO$_2$ 10% based on overall quality of sensory evaluation.

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Effect of Storage Condition on the Quality and Microbiological Change of Strawberry “Minyubong” during Storage (저장조건이 딸기 “미녀봉”의 저장 중 품질 및 미생물학적 변화에 미치는 영향)

  • Lee, Se-Hee;Lee, Myung-Suk;Namkyu Sun;Song, Kyung-Bin
    • Food Science and Preservation
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    • v.11 no.1
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    • pp.7-11
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    • 2004
  • To examine the effect of storage condition on the quality and microbiological change of strawberry “Minyubong”, the rate of weight loss, decay rate, pH and titratable acidity, and microbial (total bacterial count, mold and yeast) changes were determined during storage. Strawberry fruits were packaged with low-density polyethylene (LDPE). Strawberries were then stored at 4$^{\circ}C$ and 20$^{\circ}C$, respectively. LDPE package was effective on the decrease of decay rate of strawberry as well as the rate of weight loss, compared with the non-packaged. Microbial changes of strawberry stored at 4$^{\circ}C$ and 20$^{\circ}C$ were monitored during storage. Packaging affected the microbial change, resulting in retarding the growth of total bacteria as well as mold and yeast, compared with the non-packaged, regardless of storage temperature. These results indicate that storage of strawberry fruits wrapped with LDPE at 4'C should be recommended in terms of quality as well as its shelf-life.

Changes of Physical and Sensory Quality in Home-delivered meals for elderly as affected by Packaging methods and Storage conditions 3 (노인을 위한 가정배달급식의 포장방법 및 저장조건에 따른 물성ㆍ관능적 품질 변화 3)

  • 김혜영;류시현
    • Korean journal of food and cookery science
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    • v.19 no.3
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    • pp.374-389
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    • 2003
  • The Purpose of this study was to propose the most effective packaging method and storage conditions to apply to home-delivered meals for the elderly Changes in the physical and sensory qualities of pan fried oak mushroom and meat, soy sauce glazed hair tail and roasted dodok, in wrap packaging, top sealing and vacuum packaging were evaluated during storage at 25, 4 and -18$^{\circ}C$, for 5 days. The speed of falling-off in the foods qualities, under chilled and frozen storage conditions did not differ much as the 5 day storage period was too short for a proper assessment. The sensory characteristics of taste and texture were better evaluated in the chilled than in the frozen storage. The most effective packaging method at all the storage temperatures was the vacuum packaging, which assured the safety of the foods by the removal of oxygen. The lightness, springiness and hardness were significantly influenced by the storage temperature, period and packaging method, while the sensory characters were affected by storage temperature and the period. In conclusion, the quality of the vacuum packed pan fried oak mushroom and meat and soy sauce glazed hair tail, in frozen storage, were still fresh after the five days of the experiment. The shelf-life of those foods with wrap packaging, in chilled storage, were suggested to be three days. The quality of the roasted dodok, with vacuum packaging in chilled storage, was preserved for five days.

Effect of Paddy and Upland Conditions on Yield and Storage of Onion Bulbs (논밭 재배지 조건에 따른 양파 채종용 모구의 수량 및 저장력 변화)

  • Cho Sang-Kyun;Lee Eul-Tai;Oh Young-Jin;Choi In-Hu;Kim Young-Jin;Kim Jung-Gon
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.51 no.5
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    • pp.401-407
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    • 2006
  • This study was conducted to investigate the effect of onion cultivation under paddy and upland condition on the yield and storage of onion bulbs. In comparison of soil conditions, nitrogen, phosphate, potassium content and average temperature in upland condition were higher than those of paddy condition, but calcium, magnesium, sodium and water content in paddy condition were higher than those of upland condition. The growth of aerial part was better in upland cultivated condition. It showed that bulb formation in paddy cultivated condition was faster during in early growth stage, but was slower during in late growth stage. Average bulb size and weight were higher in upland cultivated condition, but dry weight per 100 g fresh weight and bulb hardness were higher in paddy cultivated condition. Sugar contents, inorganic compounds, nitrogen, phosphate and potassium content of onion were higher in upland cultivated condition, but calcium, magnesium and sodium content of onion were higher in paddy cultivated condition. In distribution of onion bulb size, most of large sized onions were produced in upland cultivated condition. Average bulb production for seed harvesting were $63{\sim}70%$ higher in paddy cultivated condition than that of upland cultivated condition. The rotted rate of onion was about $27.2{\sim}34.6%$ in paddy, $37.5{\sim}51.4%$ in upland cultivated condition respectively, showed favorable result as the difference of $8.7{\sim}24.2%$ in paddy cultivated condition.

The Effect of Storage Method and Duration on the Physicochemical Characteristics and Consumer Acceptance of Kimchi (저장 방법 및 기간을 달리한 김장 김치의 이화학적 특성 및 소비자 기호도)

  • Kim, Hee-Sup
    • Journal of the Korean Society of Food Culture
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    • v.17 no.5
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    • pp.638-645
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    • 2002
  • The purpose of this study is to evaluate the quality characteristics and consumer acceptance of the Kimchi affected by the storage method and the duration. The characteristics of Kimchi fermented and stored in the traditional method, such as cave facility or pit storage on the shore were compared to the Kimchi which was stored in the Kimchi refrigerator using the physicochemical and sensory evaluation. The quality of Kimchi stored by the Kimchi refrigerator was most acceptable with 3 month storage, while that of Kimchi stored by the storage facility under the ground on the shore was 1 month storage. Shelf life of Kimchi was extended up to 5 month stored by Kimchi refrigerator, and 3 month for the Kimchi stored under the ground on the shore.

Effect of Controlled Atmosphere Storage on the Antioxidative and Cytotoxic Activities of Fresh and Red Ginseng (CA저장이 수삼 및 대삼의 항산화 작용과 항암작용에 미치는 영향)

  • 전병선;정나미
    • Journal of Ginseng Research
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    • v.20 no.3
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    • pp.262-268
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    • 1996
  • 4-year-old fresh ginseng was stored for 12 weeks at 4$^{\circ}C$ under the CA storage and samples were withdrawn after every 1, 2, 3, 4, 6, 8 and 12 weeks for processing of red ginseng. Antloxidative and cytotoxic activities of steamed red ginseng for the quality evaluation are summarized as follows: Reducible activity of water extract to 1, 1-dipenyl-2-picryl hydrazyl increased with increasing storage period. Antioxldative activity of red ginseng did not change in petroleum ether fraction, while it had a tendency to increase In the fractions of ethyl ether and ethyl acetate with increasing storage period. in contrast to fresh ginseng, malonaldehyde formation In heparin mlcrosome of red ginseng processed from fresh ginseng stored In CO2:O2:Nl (6:4:90) with a 0.5% DF-100 immersion condition decreased but was not changed significantly by the period of storage. Cytotoxic activity against cancer cell at a 40 mg/ml concentration of red ginseng slightly increased with an increase in storage period but no effect was observed at the concentration less than 10 mg/ml.

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MAKING THE CASE FOR SAFE STORAGE OF USED NUCLEAR FUEL FOR EXTENDED PERIODS OF TIME: COMBINING NEAR-TERM EXPERIMENTS AND ANALYSES WITH LONGER-TERM CONFIRMATORY DEMONSTRATIONS

  • Sorenson, Ken B.;Hanson, Brady
    • Nuclear Engineering and Technology
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    • v.45 no.4
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    • pp.421-426
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    • 2013
  • The need for extended storage of used nuclear fuel is increasing globally as disposition schedules for used fuel are pushed further into the future. This is creating a situation where dry storage of used fuel may need to be extended beyond normal regulatory licensing periods. While it is generally accepted that used fuel in dry storage will remain in a safe condition, there is little data that demonstrate used fuel performance in dry storage environments for long periods of time. This is especially true for high burnup used fuel. This paper discusses a technical approach that defines a process that develops the technical basis for demonstrating the safety of used fuel over extended periods of time.