• 제목/요약/키워드: life prolongation

검색결과 133건 처리시간 0.031초

진공예냉처리에 의한 양상치의 선도 연장 (Freshness Prolongation of Crisphead Lettuce by Vacuum Cooling)

  • 김동철;이세은;남궁배;최문정;정문철;김병삼
    • Applied Biological Chemistry
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    • 제38권3호
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    • pp.239-247
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    • 1995
  • 양상치의 유통구조 개선 및 선도연장을 위해 생산지에서 직접 수확한 후 전처리하여 진공예냉시킨 다음 저온유통시험을 수행하였다. 양상치는 기존 상온 수송에 비하여 예냉처리후 냉장수송하였을 때 소비자에 도착시 관능적으로 신선도에 있어서 유의차를 인지할 수 있었으며, 각 방법에 의하여 수송해온 양상치를 $0{\sim}15^{\circ}C$에 저장하였을 때 저장 설정 온도에 도달하는데는 $10{\sim}17$시간이 소요되었다. 양상치는 진공예냉장치에 의하여 27분만에 $1^{\circ}C$까지 냉각이 가능하였으며, 예냉처리 및 냉장수송한 후 $0^{\circ}C$에 저온저장하였을 때 감모율은 최고 5% 이하로 30일간 저장이 가능하였고, 아스코르브산은 86%, 클로로필은 52% 이상 유지되었다. 관능적 특성에 의하여 평가하였을 때 예냉 및 냉장수송을 한 양상치는 $15^{\circ}C$에서는 5일, $0^{\circ}C$에서는 40일 이상 저장이 가능하였으며 예냉처리하지 않고 상온수송을 하여 저장한 경우는 $15^{\circ}C$에서 3일, $0^{\circ}C$에서는 20일 정도 밖에 저장이 되지 않았다.

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큰느타리버섯 배지 질소함량 및 온도조건별 선도연장효과 (The effect of nitrogen contents in media and cultivation temperature on freshness prolongation in Pleurotus eryngii)

  • 문지영;김정한;최종인;정구현;권희민;하태문
    • 한국버섯학회지
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    • 제18권4호
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    • pp.339-343
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    • 2020
  • 본 연구는 수출용 큰느타리버섯의 선도 유지 및 저장성 증대를 위한 배지 적합 질소함량과 생육온도 조건을 설정하고자 하였다. 배지 질소함량 1.5%, 1.8%, 2.1%, 2.4% 및 생육온도 15℃, 12℃, 9℃ 조건별로 자실체의 생육특성, 수확 후 냉장저장기간 동안의 가스농도, 자실체 품질변화를 조사하였다. 대 직경과 중량은 생육온도와 관계없이 질소함량이 높아질수록 증가하는 경향을 보였으며 병당 중량은 12℃, T-N 2.4% 조건에서 149.5 g으로 가장 높았다. 갓 색은 배지 질소함량과 관계없이 온도가 낮아질수록 색도(L)가 낮아져 갓 색이 진해졌다. 저장기간에 따른 봉지 내 가스농도 변화는 9℃, T-N 2.1% 조건에서 산도 농도가 가장 오래 유지되었다. 달관조사에 의한 자실체 품질평가에서 배지 질소함량에 따른 차이는 나타나지 않았고 저장기간 28일까지 이취, 변색, 부패 정도는 15℃와 9℃가 유사하게 나타났다.

느타리의 생육 온습도 및 저장기간에 따른 품질변화 (Changes of quality in Pleurotus ostreatus during low-temperature storage as affected by cultivation temperature and relative humidity)

  • 이윤혜;이한범;주영철
    • 한국버섯학회지
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    • 제9권1호
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    • pp.34-38
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    • 2011
  • 느타리버섯의 생육단계에서 재배온도 및 상대습도를 조절하여 선도 유지 기간을 연장하기 위해 수행한 결과, 생육온도별 저장기간에 따른 버섯의 수분함량은 상대습도가 낮은 처리에서 다소 낮았다. 생육조건별 중량감모율은 저장기간이 길수록 증가하였으며, 처리간 큰 차이 없었고, 갓신장율은 저온생육시에는 상대습도 $95{\pm}5%$ 처리에서 저장 21일에 가장 높았으며, 대조구에서는 상대습도 $80{\pm}5%$ 처리에서는 저장 24일에 가장 높았다. 버섯의 물성을 분석한 결과, 경도와 탄성은 저장기간이 길수록 낮아지는 경향이었으며, 상대습도 및 생육온도에 의한 차이는 거의 없었다. 따라서, 느타리버섯을 발이유기 후 생육온도 $13^{\circ}C$, 상대습도 80%이상으로 조절하여 생육하여 250~300g 랩포장하여 $4{\pm}1^{\circ}C$에 저장 했을때 24일까지 신선도를 유지할 수 있었다.

복수암 생쥐와 인체 암세포에 대한 알로에의 항암 작용 (Anticancer Effects of Aloe on Sarcoma 180 in ICR Mouse and on Human Cancer Cell Lines)

  • 정혜윤;김재현;황세진;이동권
    • 약학회지
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    • 제38권3호
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    • pp.311-321
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    • 1994
  • Anticancer effects of Aloe on sarcoma 180 in ICR mouse or human cancer cells were determined. Sarcoma 180 cells were inoculated subcutaneously into male ICR mouse to determine effect of Aloe on tumor gowth, or inoculated intraperitoneally into male ICR mouse to determine effect of Aloe on life span prolongation, followed by oral administration of Aloe vera(10 mg/kg/day, 50 mg/kg/day) or Aloe arborescens(10 mg/kg/day, 100 mg/kg/day) once a day for 14 days. The administration of Aloe vera or Aloe arborescens did not suppress tumor growh. However the life span of ICR mouse was prolonged to 19%(p<0.05), 22%(p<0.05) and 32%(p<0.05) by administration of Aloe vera 10 mg/kg/day, Aloe vera 50 mg/kg/day, and Aloe arborescens 100 mg/kg/day, respectively. To determine anticancer effect of Aloe in vitro, Aloe extract was added to the culture of human gastric cancer cells(SNU-1) and colorectal cancer cells(SNU-C2A), and concentration of Aloe to inhibit cancer cell growth was determined using MTT(3-[ 4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide) cytotoxicity assay. High $ID_{50}$ values of Aloe vera and Aloe arborescens against gastric cancer cell line(SNU-1) and colorectal cancer cell line(SNU-C2A) suggest that Aloe gel does not have anticancer effect on these specific human cancer cells although high concentration of Aloe inhibited growth of human cancer cells significantly.

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항암제와 Lactobacillus casei HY2782의 병용투여에 의한 항암효과의 증강 (Augmentation of antitumor activity of antitumor drugs in combination with Lactobacillus casei HY2782)

  • 윤상군;배형석;김경태;백영진
    • 한국미생물·생명공학회지
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    • 제24권1호
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    • pp.37-43
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    • 1996
  • Augmentation of antitumor activity of antitumor drugs in combination with Lactobacillus casei HY2782 (LC2782) was studied against Sarcoma-180 (S-180) and Lewis lung carcinoma (3LL). Antitumor drugs used in this study were 5-fluorouracil (5-fu) and cyclophosphamide (CP). The prolongation effect of LC2872 on the life span of mouse intraperitoneally implanted with S-180 was stronger than that of OK-432 and BCG, while the inhibitory effect of OK-432 and BCG on the growth of 3LL solid tumor was a little stronger than that of LC2782. Average survival rates of mice administrated LC2782, OK-432 and BCG were 192%, 141%, and 112%, respectively, when that of the control was 100%, Intralesional administration of 5-Fu, CP, 5-Fu+LC2782 and CP+LC2782 resulted in 93%, 69%, 99% and 73% inhibition rates against 3LL solid tumor proliferation. The combination therapy of 5-Fu or CP with LC2782 significantly prolonged the life span of S-180-inoculated ICR mice. Average survival rates of mice administrated 5-Fu and CP alone were 115% and 99%. Furthermore, survival rates of mice administrated 5-Fu and CP in combination with LC2782 were 226% and 244%, respectively.

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안면형태(顔面形態) 유형분류(類型分類)에 근거한 “치미병(治未病)” 예방의학정신과의 상관성에 대한 연구 (Study on the Interrelationship of the Preventive Public-health and the Classification on the Body Form's Type)

  • 이정원;김훈;신순식;이해웅;이용태;김경철
    • 동의생리병리학회지
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    • 제22권1호
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    • pp.194-198
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    • 2008
  • The treatment before growing into disease is the highest level of the spirit of oriental preventive public medicine. Specially the treatmentt is very important in the life style disease of the aged society, and it is closely connected the human body-form diagnosis reflecting the character of individual physiology and pathology. The human body-form diagnosis explain systematically the color of face, the form and movement of the body, the smell and the taste, the mentality, many or few of $Yin{\cdot}Yang$, the state of pulse, the Meridian, the state of pathology and the direction of the treatment, and therefore the human body-form diagnostis method has also the practical ity on classifying the type. As the spirit of oriental preventive public medicine is based on the Meridian control method and food cooking control method, it has an important effect on the general management of the disease, the making on the beautiful face and the healthy body, the prolongation of life, the management of the individual-ordered health.

Antitumor compounds from fruiting bodies of cultivated fungus of Paecilomyces japonica

  • Nama Ryu;Lim, Soon-Sung;Jung, Sang-Hoon;Cho, Sae-Yun;Shin, Kuk-Hyun
    • 한국응용약물학회:학술대회논문집
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    • 한국응용약물학회 1998년도 Proceedings of UNESCO-internetwork Cooperative Regional Seminar and Workshop on Bioassay Guided Isolation of Bioactive Substances from Natural Products and Microbial Products
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    • pp.185-185
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    • 1998
  • As part of our continuing attempts to evaluate biologically active compounds from fruiting bodies of cultivated fungus of Paecilomyces japonicus Yasuda, we conducted series of experiments on various fractions and compounds isolated by systematic fractionations. Our main efforts were concentrated on searching for compounds showing antitumor activities, which were tested on mice carrying Sarcoma-180 ascitic tumor. The antitumor activity was assessed by the life spans after these mice were administered Lp. with test compounds for consecutive 20 days. One of two pure compounds, which we have isolated to date, demonstrated significant prolongation of life span. ( Mean Survival Time: 30.3 days compared to that of control: 23.6 days). Structural analysis showed that this compound corresponds to D-mannitol. On the other hand, Ergosterol, another isolated pure compound didn't show efficient antitumor activity. We also obtained water-soluble fractions containing protein-bound polysaccharides and n-butantol fractions, which showed strong antitumor activities, 35.4(150%) and 32.1(136.0%) days of MST, respectively. In SRB assay, however, the test materials didn't show any toxic effects, but the level of acid phosphatase increased significantly when they were applied in cultured macrophage in vitro. Therefore, we concluded that antitumour activities might be attributed to immunostimulating rather than cytotoxic effects. Further experiments are underway to purify and structurally characterize new antitumour compounds from the active fractions.

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가미소암산(加味消癌散)의 혈관신생(血管新生) 억제에 관한 항암효과 연구 (Studies on the antimetastasis & antiangiogenesis effects of Gamisoamsan)

  • 윤성찬;안성훈;김진경;문연자;추영국;정규용;우원홍
    • 대한한의학방제학회지
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    • 제10권2호
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    • pp.113-126
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    • 2002
  • Soamsan is known as an anti-cancer remedy in the traditional Korean Medicine. To enhance the synergic effects of anti-cancer activity of Soamsan, this study reconstituted the original components of Soamsan with a slight modification and produced a novel herbal remedy, namely Gamisoamsan. Extracts of Gamisoamsan inhibited the growth of cultured CT-26 cells, mouse colon adenocarcinoma, in a dose-dependent manner $(1\;to\;50{\mu}g/ml)$, and $ID_{50}$ was estimated approximately $16.7{\mu}g/ml$. Using tumor-bearing mouse model, in which was produced by subcutaneous injection of CT-26 cells ($1{\times}10^5$cells). the effects of Gamisoamsan on tumor growth and host survival were examined by evaluating tumor volume and increase in life span. When Gamisoamsan extracts in variable doses of 100, 200 and 500mg/kg body weight per day were orally administered to tumor-bearing mice, following results were obtained: Improvement in the hematological parameters following Gamisoamsan treatment such as hemoglobin contents, red blood cells and white blood cells of the tumor-bearing mice have been observed. Gamisoamsan treatment also showed a prolongation of life span and a reduction of tumor volume in the CT-26 tumor hosts. The results of the present study suggest that Gamisoamsan extracts has a potential anti-tumor activity and may be an useful remedy to prevent and/or treat cancer.

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노년부부가구 남편과 부인의 부부관계 만족도 (Satisfaction on Marital Relationship of Husband and Wife in Old Age)

  • 김정석;최형주
    • 한국인구학
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    • 제34권2호
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    • pp.1-15
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    • 2011
  • 노년기는 부부가 함께 지내는 시간이 길어지면서 다른 시기보다 부부관계의 중요성이 커진다. 따라서 생애주기상의 다른 단계에서와 마찬가지로, 노년기 부부관계에 대하여 많은 관심과 다차원적인 연구가 요구된다. 그런데 부부관계는 남편과 부인 두 사람간의 관계이기 때문에, 이들 개인이 가지고 있는 본인의 특성뿐만 아니라 배우자의 특성 또한 중요하게 고려해야 한다. 이 연구는 개인과 배우자의 특성을 함께 고려하여, 남편과 부인이 서로에게 어느 정도 만족하는지 그리고 그에 영향을 미치는 요인들은 무엇인지를 비교하고 있다. 이를 위해 '2008년도 전국 노인생활실태 및 복지욕구조사' 자료를 활용하였다. 부부관계 만족도에 대한 순서형로짓분석을 실시한 결과, 남편의 만족도는 부인의 특성에는 거의 영향을 받지 않으며 대체로 자신의 특성에만 따라 차이를 보이고 있다. 한편, 부인의 부부관계 만족도는 본인의 특성뿐 아니라 남편의 특성에 따라서도 뚜렷한 차이를 보이고 있다. 이 같은 결과는 노년기 부부관계에서 부인들의 배우자에 대한 의존성을 의미하며, 여성들의 가족중심적 성향이 반영된 것으로 이해된다.

Studies on Anti-cancerous and Anti-malarial Substances from Simaroubaceae Plants

  • Takeya, Koichi
    • 한국자원식물학회:학술대회논문집
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    • 한국자원식물학회 2000년도 The 7th International Symposium
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    • pp.64-65
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    • 2000
  • Cancer is a general term subjected to a series of malignant tumor diseases which may affect many different parts of the human body. These cancer diseases are characterized by a rapid and uncontrolled formation of abnormal cells in the body. Cancer chemotherapeutic agents can often provide the prolongation of life and occasionally cures. To date many kinds of compounds have been obtained from plants kingdom as anti-neoplastic and anti-cancerous agents. However, there is no special type of compounds for cancer therapy. In our laboratory, anti-tumor and cytotoxic screenings on higher plants collected in Japan, China, Korea, Southeast Asia and South America have been done by using Sarcoma 180 ascites in mice, P388 lymphocytic leukemia in mice, Chinese hamster lung V-79 cells, P388 cells and nasopharynx carcinoma (KB) cells. The family, Simaroubaceae consists of about 20 genera and 120 species, mainly shrubs and trees, distributed in tropical and subtropical country. Simaroubaceae is classified as RUTALES, together with Rutaceae, Burseraceae, Meliaceae, Malpighiaceae and Polygalaceae. The members differ from the Rutaceae in not containing oil glands. Bitter principles are a characteristic of the family, Simaroubaceae. The genera include Quassia (Simarouba) (40 spp.), Picrasma (Aeschrion) (6 spp.), Brucea (10 spp.), Soulamea (10 spp.), Ailanthus (10 spp.) and Perriera (1 spp.) etc.. Surinam quassia derived from Quassia amara growing in Guianas, north Brazil and Venezuela is used in traditional medicines for stomachic, anti-amoebic, anti-malarial and anti-anaemic properties. Also, various parts of a number of plants of the family Simaroubaceae have been used in traditional medicine for the treatment of a variety oi diseases including cancer, amoebic, dysentery and malaria. Then, the research has established that it is the quassinoid content of these plants that is responsible for above activities. In this meeting, I will present on anti-tumor and anti-malarial activities and their active principles of Simaroubaceae plants, Eurycoma longifolia, Ailanthus vilmoriniana, Simaba cedron and Brucea mullis which have been studied in our laboratory.

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