• Title/Summary/Keyword: Storage methods

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Effect of Frozen Storage, Cooking Methods and Reheating on Lipid Oxidation in Chicken Meat (냉동저장, 조리법, 재가열이 대고기의 지질 산패에 미치는 영향)

  • 장선미;김영순
    • The Korean Journal of Food And Nutrition
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    • v.8 no.2
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    • pp.93-104
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    • 1995
  • Effect of frozen storage(0, 15, 30, 40 days, -18$^{\circ}C$), cooking methods(frying, microwaving) and reheating on lipid oxidation in chicken meats were evaluated by measuring thiobarbituric acid value (TBA value) and by measuring fluorescence value. TBA values were increased by storage days and were higher in leg meats than breast meats. According to cooking method, TBA values were higher in frying chicken meats. The fluorescence values were also increased by storage days and were higher in breast meats than leg meats.

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Effect of Packing Condition of Polyethylene film on Storage of a Major Herbal Medicine Material, Anemarrhena Rhizome

  • Choi, Seong-Kyu
    • Plant Resources
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    • v.6 no.1
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    • pp.53-56
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    • 2003
  • To develop optimal storage method of root of Anemarrhena Rhizome, which has been grown as major cultural herbal medicine material, root of Anemarrhena Rhizome was stored for 10 months with different packing materials and sealing methods. The loss in dry weight as influenced by packing materials and sealing methods was the lowest at vacuum packing and followed by complete sealing methods with transparent polyethylene film. The rot ratio of root during the storage period was not significantly different among packing materials but was significantly different among sealing conditions. Conclusively vacuum packing and complete sealing with polyethylene film appears to be optimal for storage of Anemarrhena Rhizome.

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A Study on Storage of a Major Herbal Medicine Material, Peucedani Radix

  • Choi, Seong-Kyu;Yun, Kyeong-Won;Kwon, Byung-Sun
    • Plant Resources
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    • v.5 no.2
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    • pp.114-117
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    • 2002
  • To develop optimal storage method of root of Peucedani Radix, which has been grown as major cultural herbal medicine material, root of Peucedani Radix was stored for 10 months with different packing materials and sealing methods. The loss in dry weight as influenced by packing materials and sealing methods was the lowest at vacuum packing and followed by complete sealing methods with transparent polyethylene film. The ratio of root rot during the storage period was not significantly different between packing materials but was significantly different between sealing conditions. Conclusively vacuum packing and complete sealing with polyethylene film appears to be optimal for storage of Peucedani Radix.

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A Study on Storage of Major Herbal Medicine Materials, Zingiberis Rhizoma

  • Choi, Seong-Kyu;Yun, Kyeong-Won;Shin, Kil-Man
    • Plant Resources
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    • v.5 no.3
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    • pp.224-227
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    • 2002
  • To develop optimal storage method of root of Zingiberis Rhizoma, which has been grown as major cultural herbal medicine materials, root of Zingiberis Rhizoma, was stored for 10 months with different packing materials and sealing methods. The loss in dry weight as influenced by packing materials and sealing methods was the lowest at vacuum packing and followed by complete sealing methods with transparent polyethylene film. The ratio of root rot during the storage period was not significantly different between packing materials but was significantly different between sealing conditions. Conclusionally, vacuum packing and complete sealing with polyethylene film appears to be optimal for storage of Zingiberis Rhizoma.

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A Study on Storage of Major Herbal Medicine Materials, Bupleurum falcaturm Radix

  • Choe, Seong-Kyu;Yun, Kyeong-Won;Chon, Sang-Uk
    • Plant Resources
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    • v.4 no.2
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    • pp.102-106
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    • 2001
  • To develop optimumal storage method of root of Bupleurum falcatum Radix grown on major cultural herbal medicine materials, root of Bupleurum falcatum Radix was stored for 10 months with different packing materials and sealing methods. The loss in dry weight as influenced by packing materials and sealing methods was the lowest at vacuum packing and followed by complete sealing methods with transparent polyethylene film. The ratio of root rot during the storage period was not significantly different between packing materials but was significantly different between sealing conditions. Conclusionally, vacuum packing and complete sealing with polyethylene film appears to be optimal for storage of Bupleurum falcatum Radix.

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Effect of Storage Condition on Yield and Quality of Angelica acutiloba Radix

  • Choi, Seong-kyu;Yun, Kyeong-Won;Chon, Sang-Uk;Seo, Young-nam
    • Plant Resources
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    • v.5 no.1
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    • pp.70-73
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    • 2002
  • To develop an optimal storage method of root of Angelica acutiloba Radix, which has been grown as major herbal medicine material to be cultivated, root of Angelica acutiloba Radix, was stored for 10 months with different packing materials and sealing methods. The loss in dry weight as influenced by packing materials and sealing methods was the lowest at vacuum packing and followed by complete sealing methods with transparent polyethylene film. The ratio of root rot during the storage period was not significantly different between packing materials but was significantly different between sealing conditions. In conclusion, vacuum packing and complete sealing with polyethylene film appears to be most optimal for storage of Angelica acutiloba Radix.

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Effect of Pre-treatment Methods on the Quality of Ginger during Storage (전처리 방법이 생강의 저장 중 품질에 미치는 영향)

  • 정태연;정태연;남궁배;이세은
    • Food Science and Preservation
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    • v.6 no.1
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    • pp.1-6
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    • 1999
  • Fresh gingers, harvested in Seosan, Choongcheongnam-do, were pre-treated by a washing-pasteurizing-drying process, a curing process, and non-treated, respectively. Then they were stored in a lab-scale storage room(12$^{\circ}C$, >92%RH) to investigate the effect of pre-treatment methods on the quality changes during long-term storage. Weight loss of ginger during storage showed ranges in 0.7∼4.3%, and the weight of gingers pre-treated by washing-drying process showed a tendency to change less than those treated by curing. After storage of 130 days, spoilage rates were about 20% in non-treated, 11% in curing treated, and 12% in washing-drying treated ginger,, showing the effect of pre-treatment. The final rate of sprouting was 13∼15% regardless of treatment methods. The firmness of gingers showed a tendency to decrease in stored ginger for the longer period; however, the values were ranged from 1,200 to 1,400 g/$\textrm{cm}^2$, that is hard enough to show a marketable quality. The contents of reducing sugar showed a tendency to increase with the lapse of storage time.

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Influence of preserved brewing yeast strains on fermentation behavior and flocculation capacity

  • Cheong, Chul;Wackerbauer, Karl;Beckmann, Martin;Kang, Soon-Ah
    • Nutrition Research and Practice
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    • v.1 no.4
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    • pp.260-265
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    • 2007
  • Preservation methods on the physiological and brewing technical characters in bottom and top brewing yeast strains were investigated. The preserved yeasts were reactivated after 24 months storage and grown up to stationary phase. The samples of filter paper storage indicated a higher cell growth and viability during propagation than those of nitrogen and lyophilization storage independent on propagation temperature. In addition, the filter paper storage demonstrated a faster absorption of free amino nitrogen and a highest level of higher aliphatic alcohols production during propagation than other preservation methods, which can be attributed to intensive cell growth during propagation. Moreover, the filter paper storage showed a faster accumulation for glycogen and trehalose during propagation, whereas, in particular, lyophilization storage noted a longer adaptation time regarding synthesis of glycogen and trehalose with delayed cell growth. In beer analysis, the filter paper storage formed an increased higher aliphatic alcohols than control. In conclusion, the preservation of filter paper affected positively on yeast growth, viability and beer quality independent on propagation temperature. In addition, in this study, it was obtained that the HICF and Helm-test can be involved as rapid methods for determination of flocculation capacity.

Measurement of Lipid Oxidation Rates in Semi-prepared Frozen Muscle Foods During Various Storage and Reheating Conditions (반조리 냉동 육류제품의 저장 및 재가열 방법에 따른 지방 산화율 측정)

  • 송은승;강명화
    • Korean journal of food and cookery science
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    • v.9 no.2
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    • pp.88-93
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    • 1993
  • Semi-prepared frozen muscle foods purchased from local industry were tested for lipid oxidation. The effects of various storage conditions, cooking methods, defrosting methods and reheating methods on rancidity were examined using TBA assay and sensory evaluation. TBARS values were increased faster in cooked samples than in uncooked ones during storage periods. During refrigeration of cooked samples, TBARS values were increased significantly for 15 days (p<0.001). In defrosting experiments, refrigerated defrosting was proven to be better compared with room temperature or microwave defrosting (p<0.05). For overall explanation, stepwise regression analysis was done and the results are in this order: storage conditions, cooking methods, moisture content, and lipid content. Using these 4 variables, TBARS values could be explained by 40~53%.

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Effect of Frozen Storage and Cooking Methods on Lipid Oxidation in Chicken White and Legs Meat (닭고기 냉동저장과 조리법이 지질의 산패에 미치는 영향)

  • Choi, Jae-Hee;Lee, Sook-Mi;Cho, Chung-Soon
    • Journal of the Korean Applied Science and Technology
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    • v.10 no.2
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    • pp.49-56
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    • 1993
  • The effect of frozen storage and cooking methods on lipid oxidation in chicken meat was studied. Chicken meats were stored 0, 30, 60, 90, 120 days at $-18^{\circ}C$ and were evaluated before and after cooking. 1. The crude fat content of chicken meat is the highest thigh meat with skin in microwaving. Fat content was increased duting 30 days of frozen storage, and then after. 2. Peroxide value, acid value and TBA value was increased during the days of storage because lipid autoxidation was processed cooking and during frozen storage time. The peoxide value and acid value were higher compared to sample cooked by other methods. 3. The fluoresence units were increased with frozen storage, and initial levels of fluoresent after processing. 4. The fatty acid composition of chicken meat fats is mainly palmitic acid and oleic acid, and the effect of frozen storage and meats part is not significantly change but fatty acid significantly change according to frying that linoleic acid was increased during frozen time. From all the results obtained in this study it can be conclude that lipid autoxidation of the chicken meat frozen storage at $18^{\circ}C$ was consistantly processed, and breast meat oxidation was increased than thigh meat because chicken breast meat include many polyunsaturated fatty acid. Frying was significantly increased highest than other cooking methods.