• 제목/요약/키워드: preservability

검색결과 27건 처리시간 0.02초

The Effect of High Hydrostatic Pressure Treatment on the Preservability and the Immunological Activity of Bovine Colostrum

  • Masuda, T.;Rehinarudo, H.Y.;Suzuki, K.;Sakai, T.;Morichi, T.
    • Asian-Australasian Journal of Animal Sciences
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    • 제13권9호
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    • pp.1323-1328
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    • 2000
  • Bovine colostrum, which contains a large quantity of immunoglobulins, is indispensable for newborn animals. The establishment of a new procedure for preserving colostrum without losing the immunological activity is significant. We examined the effect of high hydrostatic pressure treatment (100~500 MPa) on the preservability and the immunochemical activity of bovine colostrum. When high hydrostatic pressure treatment was 300 MPa or more, the increase of the total viable count, coliforms and psychrotrophic gram-negative bacteria was suppressed effectively. In particular, the number of coliforms in colostrum treated at 300 MPa or more hardly increased for 35 days at $4{^{\circ}C}$. At 400 MPa or more, both gelling of the colostrum and denaturation of immunoglobulins were observed. However, if the pressure was 300 MPa, immunoglobulins were scarcely influenced and the neutralizing titers against the bovine coronavirus did not decrease. Therefore, it was suggested that 300 MPa was the best pressure for good preservability of colostrum without reducing the immunochemical response.

Effect of Antioxidant Fortification on Preservability of Buffalo Semen

  • Raina, V.S.;Gupta, A.K.;Singh, Kiran
    • Asian-Australasian Journal of Animal Sciences
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    • 제15권1호
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    • pp.16-18
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    • 2002
  • During the process of freezing, spermatozoa suffer cold shock which increases their susceptibility to lipid peroxidation which plays an important role in ageing of spermatozoa, shortening their life span and affecting the preservation of semen. An experiment was therefore conducted to study the effect of addition of natural antioxidants into semen diluents on the preservability of buffalo semen. Split semen samples were extended in milk egg yolk diluents fortified with vitamin E (MYE), vitamin C (MYC) and control group (MYO); Tris-egg yolk diluents fortified with vitamin E (TYE), vitamin C (TYC) and control group (TYO) and evaluated for their preservabilities at 4-7$^{\circ}C$ and $37^{\circ}C$. Overall least squares mean of percent motility observed after 0, 24, 48, 72 and 96 h of preservation at 4-7$^{\circ}C$ were 66.70, 54.00, 36.80, 21.90 and 12.50, respectively while the estimates for semen extended in MYE, MYC, MYO, TYE, TYC and TYO were 44.80, 42.70, 38.70, 36.00, 35.20 and 33.00 percent, respectively. The results showed that motility was significantly (p<0.01) affected by extender (extender-antioxidant combination) and preservation interval. Overall least squares mean percent motility observed after 0, 4, 8, 12 and 24 h of preservation at $37^{\circ}C$ were 68.50, 58.90, 45.00, 38.10 and 18.10 percent, respectively, while the estimates for semen extended in MYE, MYC, MYO, TYE, TYC and TYO were 48.20, 49.30, 46.80, 45.30, 42.30 and 42.50 percent, respectively. Extender and storage interval were found to be significantly (p<0.01) affecting spermatozoa motility on room temperature preservation. The results indicated that the incorporation of antioxidants, especially vitamin E, had beneficial effect on preservability of buffalo semen.

인삼첨가가 배추김치의 보존성과 품질에 미치는 영향 (Effect of Ginseng on the Preservability and Quality of Chinese Cabbage Kimchi)

  • 김순동;장경숙;김미정
    • 한국식품영양과학회지
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    • 제24권2호
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    • pp.313-322
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    • 1995
  • This study was conducted to investigate the effect of ginseng on the preservability and quality of Chinese cabbage Kimchi. The effect of ginseng on the growth of Lactobacilli, pH, titratable acidity, amount of juice, sensory quality and fracitonation of cell wall ploysaccharides, and enzyme activities related to softening were examined during fermentation. Ginseng promoted the growth of L. brevis and it didn't influence L. plantarum and L. fermentum. But Leuc. mesenteroides and P. cerevisiae was inhibited a little by adding of ginseng. The quality of ginseng added Kimchi evaluated by nalysis of the pH, acidity, sensory quality, the amount of juice, and overall eating quality during fermentation was better than those of control Kimchi, and 2% ginseng added Kimchi was the best ont the preservability and quality. The activity of β -galactosidase in ginseng added Kimchi was higher than that of control Kimchi. But the activity of polygalacturonase in ginseng added Kimchi was the same as that of control Kimchi. Ginseng added Kimchi showed more desirable softness of tissue. This was the same result as the analysis of pectic substance and hemicellulosic polysaccharides composed of cell wall polysaccharides. The value of L(lightness) of ginseng added Kimchi was highly maintained during the edible period and the yellow color from the ginseng was moved to Kimchi tissue in the ginseng added Kimchi.

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속실렛 추출법에 의한 밀랍지의 탈랍처리 효과분석 (Effect of Soxhlet Extraction Condition on Dewaxing Efficiency of the Beeswax-Treated Paper)

  • 최경화;장혜미
    • 펄프종이기술
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    • 제45권5호
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    • pp.64-70
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    • 2013
  • In this study, the effect of soxhlet extraction on dewaxing of the aged beeswax-treated paper was examined. To do this, soxhlet extraction of the aged beeswax-treated paper performed with different reflux conditions and then measured the dewaxing efficiency and change in the various properties such as tensile strength, folding endurance, color and brightness. Also, an artificial aging test was executed in order to investigate the effect of soxhlet extraction on the preservability of the dewaxed paper. As the result of FT-IR analysis, a peak area of CH and COOH group, which are main band of beeswax, was decreased or removed after soxhlet extraction. The decreasing rate of each peaks were increased depending on reflux time. After dewaxing, the physical property such as MIT type folding endurance and tensile strength was decreased. And $L^*$ value and brightness were increased while $a^*$ and $b^*$ value were decreased due to the remove of color compounds in beeswax. The more color deviation (${\Delta}E$) is expected with higher reflux times. As the result of artificial aging, preservability of two dewaxed papers except of DP_SE(C) sample was higher than that of untreated paper i.e. beeswax-treated paper.

메틸셀룰로오스에 의한 탈랍지의 강도보강처리 - 메틸셀룰오스 점도 및 도포율의 영향 - (Strengthening of De-waxed Paper by Methyl Cellulose (MC) and Its Preservability - Effect of Viscosity and Coating Ratio of MC -)

  • 최경화;정혜영;조병욱
    • 펄프종이기술
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    • 제47권6호
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    • pp.130-138
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    • 2015
  • This study was conducted to investigate the effect of the strengthening treatment of methyl cellulose (MC) on properties and aging characteristics of the dewaxed papers during humid heating aging. Beeswax-treated Hanji was dewaxed by the supercritical fluid extraction method, and subsequently the strengthening treatment was performed with MCs having three different viscosities. MC was first applied by dipping a dewaxed paper into a MC solution whose concentration was controlled from 0.5% to 1.5%. After the strengthened papers were artificially aged at $80^{\circ}C$ and 65% RH, the changes in optical and mechanical properties of the samples were evaluated. The results show that viscosity and especially pick-up of MC influenced the strengthening efficiency and aging characteristics of dewaxed paper. Strength was increased with the MC coating weight; in addition, strengthening with MC improved preservability of the dewaxed paper. The optimum conditions for the strengthening with MC was found to be the coating ratio of 4% with 1500 cP MC.

쌀 및 쌀가루 저장중 품질 안정성의 비교 (Comparison of Quality Stability of Rice and Rice Flour during Storage)

  • 김병삼;박노현;조길석;강통삼;신동화
    • 한국식품과학회지
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    • 제20권4호
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    • pp.498-503
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    • 1988
  • 86년도산 다수확계 품종(칠성)의 쌀을 쌀과 쌀가루 형태로 $13^{\circ}C$, 상온$(17{\sim}28^{\circ}C)$, 및 $38^{\circ}C$에 저장하면서 품질 안정성을 비교, 조사하였다. 저장중 지방산도 값은 $38^{\circ}C$경우 45일, 상온 저장구의 경우 60일 까지 급격히 증가하다가 그 이후 완만하게 증가하였으며 $13^{\circ}C$에 저장한 경우는 미미한 증가를 나타내었다. 그리고, 아밀로그램 특성 중 호화 개시 온도, 최고 점도, Breakdown은 저장중 모두 증가하였으며 그 경향은 지방산도와 비슷하였다. 관능적 품질의 변화는 $13^{\circ}C$의 경우는 저장 6개월까지 크게 차이를 나타내지 않았으나 $38^{\circ}C$인 경우는 1개월, 상온 저장의 경우는 5개월 만에 상품성이 크게 저하한 것으로 나타났다. 쌀과 쌀가루의 형태별 품질 안정성은 쌀의 경우가 대체로 컸으나 관능적으로 큰 유의차를 나타내지는 않았다.

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유휴시설을 활용한 전시공간 재생디자인 특성에 관한 연구 - 유휴 산업시설과 유휴 비산업시설을 중심으로 - (A Case Study of Rehabilitation Design Characteristics of Exhibition Space from Idle Facilities - Focus on Idle Industrial Facilities and Idle Non-Industrial Facilities -)

  • 김현정;황연숙
    • 한국실내디자인학회논문집
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    • 제26권6호
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    • pp.145-154
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    • 2017
  • Industrial paradigm change and awareness change based on development of transportation and communication technology, many idle facilities had been occurred. These idle facilities become the factor which hinder image and environment of the surroundings. In recent years, social, cultural and economic value of idle facilities has been acknowledged and is regarded as an object of rehabilitation as part of urban problem solving. The purpose of this study is to analyze the characteristics of recycling design in the exhibition space used as a domestic idle facility and to utilize it as a basic data for creating an exhibition space using idle facilities in the future. The scope of the study was selected from 8 cases which were reproduced as exhibition space within the last 10 years mainly in Seoul and metropolitan area. It is analyzed by five characteristics of historicity, symbolism, preservability, connectivity, and placeness that are analyzed by the characteristics of rehabilitaion design. The conclusion is as follows. First, idle facilities can be divided into idle industrial facilities and idle non - industrial facilities. Second, the analysis of the characteristics of rehabilitaion design of idle facilities showed that the symbolism was much higher than other rehabilitaion design characteristics. Third, as a result of comparative analysis between idle industrial facility exhibition space and idle non - industrial facility exhibition space, historicity, preservability, and connectivity were high in the idle industrial facility exhibition space. In the exhibition space of idle non-industrial facilities, symbolism and placeness were high.

식품 패키지디자인 개발 전략에 관한 연구 (A Study on the Development Strategy of the Foods Package Design)

  • 최정계;이상윤
    • 한국프랜차이즈경영연구
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    • 제2권2호
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    • pp.45-69
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    • 2011
  • 포장의 기본적인 기능은 포장의 보존성·배송성·세분성·심미성·편리성이다. 초기에는 포장의 기능 및 필요성을 보호성에 두었지만, 오늘날 이것이 더욱 확장되어 패키지의 판매촉진 기능에 중점을 두고 있다. 생산품은 그것 자체로만 상품이라 말하기는 어렵지만, 패키지 상품이 됨으로써 상품화하였다고 말 할 수 있다. 또한 포장과 내용물이 동일시(identification) 됨으로써 상품이 되는 것이므로 패키징의 상품성은 중요한 기능이다. 포장 디자인의 역할이란 소비자의 다양한 needs와 wants를 충족시키는데 영향력있는 요소이다. 과거의 식품 패키지디자인은 물건을 보호하고 운반하는 역할에 지나지 않았지만 현대에 들어서는 더욱 다양한 역할이 요구되고 있다. 요즘의 상품들은 그것이 갖는 본래의 기능뿐 아니라 더불어 다양한 부가가치가 있어야 하는 것이다. 이는 기술과 정보의 발달과 물질의 풍요에서 오는 선택 범위의 다양성에서 비롯된다. 오늘날의 식품 패키지디자인이 단지 물건을 아름답게 감싸는 수준에만 머물 수 없는 것은 바로 이 때문이다. 패키지디자인은 상품을 소개하는 가장 상징적인 기호이다. 제품을 연구, 생산, 유통하는 관계자의 입장에서도 그렇고, 그 제품을 구매하여 사용하는 소비자의 입장에서도 마찬가지이다. 상품의 정보를 전달하는 쪽이나 제품의 상품성을 따져보는 쪽이나 중요한 매개체는 결국 패키지디자인인 것이다. 현대의 식품 패키지디자인은 상품의 기능적인 면은 물론 소비자의 까다로운 감성적 요구에도 충실해야 한다. 이것이야말로 현대 식품 패키지의 중요성과 존재 이유라고 할 수 있다. 패키지는 소비자의 요구에 충실하기 위해 존재한다. 소비자에게 선택되는 기회를 얻기 위한 접근, 이것이 식품 패키지디자인의 가장 큰 역할이다. 본 연구는 식품 패키지디자인에서 제안되는 심미성, 편의성, 실용성, 경제성 그리고 환경 지향성을 상업화하기 위해 현존하는 방법들과 이론들을 살펴보고, 식품 산업분야에서 패키지디자인이 판매촉진 및 매출 증대에 지대한 영향을 주는 이유와, 물류 분야에서 상품의 효익에 영향을 미칠 수 있는 패키지디자인의 기능과 역할에 대하여 살펴보는 것을 목적으로 한다. Green Design을 식품 패키지에 접목시켜 재활용과 분해가능한 식품 패키지 개발에 대한 사례와 장수식품의 패키지디자인 사례를 살펴본다.

여러 가지 첨가제가 맥주박과 베지밀박의 부패방지에 미치는 영향 (Effects of Various Additives for Spoilage Prevention on Brewers grain and Soymilk by-product)

  • 이현준;김현섭;전병순;김상우;기광석;조광근;조재순;이홍구;최윤재
    • 유기물자원화
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    • 제10권3호
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    • pp.74-84
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    • 2002
  • 고수분 유기성 물질인 맥주박, 베지밀박 등의 농산가공부산물들은 상온에서 변패성이 강하여 가축의 사료로 이용하기위해서는 보관성증진을 위한 첨가제의 처리가 중요하다. 본 연구에서는 맥주박과 베지밀박을 소금, 유기산, 발효미생물 및 메치오닌수산화물(MHA)을 처리하여 고온다습한 7월중순경에 상온에서 20일간 방치한 후 보관일수에 따른 시료의 표면연화현상과 곰팡이 발생양상, 시료내부 pH, 암모니아태질소 함량변화를 조사하여 각 첨가제의 시료에 대한 변패방지효과를 비교한 결과, MHA 5%이상 처리구에서 특별한 효과가 있는 것으로 나타내었다.

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제지용 전분을 이용한 문화재 보존용 기능성 풀 개발 (제1보) - 풀의 종류에 따른 접착 특성 - (Development of Glue for Artifact Conservation Using Papermaking Starch (Part 1) - The Nature and Adhesive Strength of Glues -)

  • 이선조;최태호
    • 펄프종이기술
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    • 제46권4호
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    • pp.44-53
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    • 2014
  • This research were aimed at developing starches which have high preservability and high bonding strength from corn starch, modified cationic and oxidized corn starches, as compared to the fermented wheat starch. On the lining that attaching the base paper on the back of the work with paste, the coating weight was determined by the solid contents of the paste rather than the viscosity of paste. Adhesive strength and stiffness were also determined by the solid contents of the paste. Corn starch had lower solid contents, higher viscosity, and higher adhesive strength than other starches. In the iodine stain to the surface of peeled base paper off, paste deeply penetrated into the traditional Hanji than modern Hanji. And oxidized starch paste deeply penetrated into the paper layer than the cationic starch.