• 제목/요약/키워드: Material Preservation

검색결과 485건 처리시간 0.022초

Effects of Package Materials on Quality Change of Pine Bud Beverage Under Ultraviolet Light

  • An, Duek-Jun
    • Preventive Nutrition and Food Science
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    • 제14권4호
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    • pp.349-353
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    • 2009
  • The effects of packaging materials on preserving the functional component of pine bud beverage stored under UV (ultraviolet) light exposure conditions were studied. The order of UV light blocking properties of the selected packages was: opaque can> opaque PET (polyethylene terepthalate) with green lamination=transparent PET with 10% PEN (polyethylene naphthalate) blending> transparent PET, and did not depend on film thickness in specified range. At 20${^{\circ}C}$, the order of preserving degree of original color and endobornyl acetate, which is quality index of pine bud beverage, was the same as above. Exposure to UV light can cause of deterioration of functional food components, but green color lamination and blending of PEN materials with transparent PET help to preserve the UV sensitive pine bud beverage components. However, the treated PET bottles have poorer preservation capabilities than the opaque cans. Transparent PET with PEN blending, in particular, will be very useful packaging material for colorful functional beverage preservation by helping to protect the ingredients while attracting consumer attention.

사과 포장용 고압축강도 골판지상자 개발 (Development of High Compression Strength Corrugated Fibreboard Containers for Apples)

  • 하영선;김수일
    • 한국식품저장유통학회지
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    • 제4권3호
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    • pp.245-249
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    • 1997
  • In order to find effective linerboard compositions for the corrugated fibreboard containers for apples, we have evaluated the strength and the cost effectiveness of the various linerboards and corrugated fibreboard containers. From the results, we suggest SC240, WLK210 or SK180 for the outer liners, M180 to M250 for the mediums, and K2200 or Al80 for the inner liners, respectively. Furthermore, we recommend two cost effective types of corrugated fibreboard compositions, SC240/S120/S120/M160/A180 for the white face liners, and SK180/M180/S120/M180/A180 for the color face liners. Evidence has been presented to support the conclusion that the new high compression strength corrugated fibreboard containers have better performance in the compression and bursting strength tests, while reducing material costs by thirty four percents.

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청미래덩굴(망개)잎 에탄올 추출물의 항균효과 (Antimicrobial Effect of Ethanol Extract of Smilax China Leaf)

  • 최한영
    • 환경위생공학
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    • 제19권3호
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    • pp.22-30
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    • 2004
  • The extract with the dilution of $50\%$ ethanol and treatment of $121^{\circ}C$ for 15min were inhibited highly the growth of staph aureus, Ent. cloacae, Sh. sonnei, A. hydrophila, b. subtilis, St. faecalis and L. casei. of food samples, red-bean dregs with addition of extact of smilax china. leaves or sorbic acid took the similar inhibition effect to microorganisms for the early storage days(1-3days). There was inhibited the growth of microorganisms in strawberry Juice added to 20m1 of $1\%$ extract solution for one storage day in comparison with no addition of smilax china L. Over all with growth inhibition capability to microorganisms and foods, it was believed that the effect and value as the natural food preservatives and the extracts like as this natural plant material took the food safety and it was capable to develop the natural food preservation.

건조전처리로서 삼투건조의 이용 (Utilization of Osmotic Dehydration as Pretreatment prior to Drying)

  • 윤광섭
    • 한국식품저장유통학회지
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    • 제5권3호
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    • pp.305-314
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    • 1998
  • In the drying process, many undesirable physicochemical changes occur that influence dried food product qualities. Pretreatments method is used to reduce the deterioration of dried food product qualities such as color, flavor, texture, rehydration ability and retention of nutrients. The methods of pretreatments are blanching, chemical treatment and osmotic dehydration. Osmotic dehydration is a water removal process which is based on placing foods in a concentrated osmotic solution or in a dry osmotic material. A large number of process variables have a significant effect on process and final product quality. In order to improve final product quality it is necessary to know the role of each process variable and understand the mecanisms throughout the process. Osmotic dehydration is a valuable processing tool with great future in minimal processing of fruits and vegetables.

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참외 포장용 골판지상자의 재질구성에 관한 연구 (Studies on Linerboard Compositions of Corrugated Fiberboard Boxes for Oriental Melons)

  • 하영선;이준호;김수일;박남호
    • 한국식품저장유통학회지
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    • 제7권2호
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    • pp.160-165
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    • 2000
  • The study aimed to review linerboard compositions of corrugated fiberboard boxes for Oriental melons(Cucumis melon L. var makuwa), analyzing relationships among material compositions, price, weight of boxes, theoretical compression and bursting strength of various liner boards. 19 and 22 different liner boards were currently used for the bleached and the unbleached corrugated boards, respectively. The corrugated board containers with the bleached liners were mostly used in the market although the average price was 10 percents higher than the unbleached. The average compression strength of the bleached. We strongly recommend to redesign the boxes because the average compression and bursting strength of the current boxes were much higher than national packaging standards as much as 70 and 82, respectively.

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한방산업의 정의와 분류에 대한 연구 (A research on the Korean medicine industry of define and classification)

  • 신현규
    • 한국한의학연구원논문집
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    • 제10권1호
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    • pp.97-105
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    • 2004
  • 1. To define 'Korean medicine industry' through study on existing medicine related industries, Korean medicine industry means all industrial activities related to Korean medicine. It covers material resources such as herbs and products made with herbs, medical instruments, Korean medical service and related information service based on Korean medicine theories. 2. According to Korea National Statistical Office standard industrial branch, Korean medicine industry was classified as a large branch. There were industries such as agriculture, food and beverage manufacture, publishing, copy of prints and record media, manufacture of compound and chemical products, medical service, manufacture of precise optical instruments, wholesale trade and product mediation, retail trade, restaurant, research and development, education service, health preservation service, entertainment, culture and sports industry related to the Korean medicine industry. 3. If we classify this according to the industry branch of English economists Clark, Colin Grant, herb cultivating industry will be classified as primary industry, manufacture of foot and beverage related to Korean medicine, secondary industry and wholesale and retail sales of herb, research and development, education, health preservation, social welfare, tertiary industries.

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러시아 상트 페테르브르크 여름궁전 스웨덴 석조화병의 조사 결과 (Inspection Results of the Swedish Stone Vase in the St. Petersburg Summer Garden, Russia)

  • 안드레이 불라크;유브게니 네스테로프;최석원;디미트리 블라소프
    • 보존과학회지
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    • 제27권1호
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    • pp.123-126
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    • 2011
  • The results of the inspection of the vase condition for April 29th, 2008 have stated the mineral-petrographic characteristic of the material, the character of the stone mechanical defects; its impurity and biological faults have been described; the results of ultrasonic sounding of the stone have been shown. Possible reasons and process of destruction of the stone vase have been analysed on January, 6 to 12th, 2008. Recommendations on restoration and preservation of the vase have been given.

오존수에 처리된 후추의 저장중 미생물 변화 (Change in the Microorganism of Pepper (Pirer nigrum L.)Treated with Ozonated Water)

  • 이병우;천성호
    • 한국식품저장유통학회지
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    • 제3권2호
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    • pp.145-148
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    • 1996
  • This paper was carried out to investigate change in the initial microorganism of Pepper which were treated with ozonated water for microbial decontamination. When ozonated water was 30, 60, 90minutes treatment, there was decrease in the overall total microbial of the black & white pepper. Total lactic acid bacteria died completely after contacted with ozonated water for 60minutes but the inhibition rate on the total aerobic bacteria of black & white pepper were 62% and 96%, respectively. Total aerobic bacteria of four packing material was increased after 1 months of storage at 37$^{\circ}C$ when it had treated with 90minutes ozone reaction Then, there was no significant changes in the piperin contents.

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합성수지의 보강비율에 따른 목재의 휨 보강 성능에 관한 연구 (A Study on the Flexural Capacity of Wooden Member According to the Reinforcement Ratio of Synthetic Resin)

  • 강호근
    • 한국공간구조학회논문집
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    • 제17권3호
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    • pp.91-98
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    • 2017
  • Most of the cultural assets in Korea are wooden structures. Due to the material characteristics of wood, the preservation of traditional wooden structure is impossible by simple maintenance. Damaged member is replaced with new member or completely dissolve and restore them. But member has a cultural value, so that it is impossible to arbitrarily replace each member. Although the preservation treatment method using synthetic resin is emphasized, there is no exact standard for proper reinforcement ratio. This paper is experimental study for reinforcement ratio of wooden flexural member with synthetic resins, Reinforced ratio on section area of flexural member. As a result, synthetic resin reinforcement are selected as experimental variables by proper ratio enhanced flexural capacity of reinforced wooden member than new wooden member.

마늘순의 영양적 성분 및 향기 성분 분석 (Analysis of Nutritional and Volatile flavor Compounds of Garlic Shoot)

  • 김미연;정신교
    • 한국식품저장유통학회지
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    • 제4권1호
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    • pp.61-68
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    • 1997
  • To enhance the utilization of garlic shoots as food material, the nutritional and volatile flavor com pounds were investigated for garlic shoots, both cold and warm region type garlic shoots. Proximate composition of cold and warm region type was as follows, respectively; crude protein 2%, crude lipid 0.4%, crude ash 1.1% and 1.5%, crude fiber 1.3% and 1.5%. The major fatty acids of 2 varieties of garlic shoots were linoleic, palmitic and linolenic acid, and their desaturation ratio of them was comparatively high, showing 73.7 and 66.8%, respectively. Free sugars were composed of glucose, sucrose, fructose, arabinose and sorbitol. In the total amino acid analysis, the major amino acids were glutamic acid and aspartic acid. The volatile flavor compounds of fresh garlic shoots extracted by hexane and Likens-Nikerson steam distillation apparatus were identified to be methyl-2-propenyl disulfide, diallyl disufide, propenyl propyl disulfide, di-2-propyl-trisulfide, 2-vinyl-1,3-dithiane, and 2-vinyl-4H-1,3-dithiin. Hexane was more effective than steam distillation for extraction of volatile components of garlic shoots.

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