• 제목/요약/키워드: Egg shell

검색결과 398건 처리시간 0.026초

흔한가리비, Chlamys nobilis의 치패성장 및 중간육성 (Preliminary Studies on the Growth Performance of the Subtrophic Noble Scallop Chlamys nobilis in Korean Waters - with a Special Focus on Nursery Life)

  • 원승환;조규태;한석중;김재우
    • 한국패류학회지
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    • 제24권3호
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    • pp.205-214
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    • 2008
  • 흔한가리비 종묘생산시 부화 유생사육시 파판에 부착 후 60일째까지의 경과일수(X)에 따른 자패의 각장(SL) 성장은 $SL=0.1664e^{0.0579x}$($r^2=0.924$) 회귀직선식으로 나타낼 수 있었다. 지귀도에서 사육한 각장 1 mm 치패는 1개월후에 $4.1{\pm}0.8\;mm$로 성장하였고 2, 3, 4 및 5개월째에는 각각 각장 $13.0{\pm}1.9$, $23.1{\pm}3.1$, $30.3{\pm}4.3$, $33.6{\pm}5.2\;mm$로 성장 하였다. 시험기간 동안 지귀도 연안에서 흔한가리비의 수심별 일간 각장 성장량은 165.6, 154.0 140.0, $137.4{\mu}m/day$ 순으로 수심이 깊어질수록 성장량은 낮았고(p < 0.05), 사육밀도별에서는 각각 168.3, 145.8, 115.2, $101.8{\mu}m/day$로 사육밀도가 높을수록 성장이 느렸다(p < 0.05). 제주연안에서의 흔한가리비 치패의 중간육성은 제주시 옹포리연안보다는 서귀포시 지귀도 연안이 성장 및 생존율에서 높아서 양식가능성이 높았고, 일본의 경우와 비교해서는 성패까지 사육할 경우, 3-6개월 정도 더디었지만 양식가능성은 충분하다고 생각되며, 양식의 성공률을 높이기 위해서는 여름철 태풍 내습에 대한 시설물의 안정성이 우선 고려되어야 할 것으로 사료된다.

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직장에 발생한 만손주혈흡충증 일례 보고 (Mansonian schistosomiasis in rectum - Report of a case -)

  • 임소덕;서연림
    • Parasites, Hosts and Diseases
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    • 제33권4호
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    • pp.383-386
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    • 1995
  • 주혈흡충증은 물을 매개로 하여 패류에서 유출긴 유미유충에 감염되어 생기는 수인성 기생충 질환으로. 만손주혈흡충증은 남미, 아프리카와 중동지역에서 흔히 유행한다. 한국에서는 수입증례로 방광에 발생한 6례의 주혈흡충증과 뇌에 발생한 한 례의 만손주혈흡충증이 보고된 바 있다. 저자들은 2년 동안 사우디 아라비아에서 건축업을 하다가 귀국한 46세 남자의 직장에 발생한 만손클혈흡 충증을 경험하여 이를 보고한다. 환자는 정기 신체검사에서 직장경 검사상 직장에 0.4 cm 크기의 폴립이 발견되었다. 광학현미경강 점막 및 점막하에 조직구 림프구 호중구와 호산구로 구성된 수 개의 육아종이 관찰되었고 각 육아종에는 미라시디움을 갖고 있는 충란이 있었다. 충란은 $130{\;}{\times}{\;}60{\;}\mu\textrm{m}$ 크기였고 반투명한 껍데기와 매우 특징적인 측방극(lateral spine)을 보여 만손주혈흡충에 합당하였다. 본 증례는 우리 나라에서 8번째 주혈흡충증의 수입 증례이며 만손주혈흡충증으로는 두 번째이고 장의 병변이 확인된 주혈흡충증례로는 첫 번째이다.

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Effects of Egg Shell Membrane Hydrolysates on Anti-Inflammatory, Anti-Wrinkle, Anti-Microbial Activity and Moisture-Protection

  • Yoo, Jinhee;Park, Kimoon;Yoo, Youngji;Kim, Jongkeun;Yang, Heejin;Shin, Youngjae
    • 한국축산식품학회지
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    • 제34권1호
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    • pp.26-32
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    • 2014
  • This study was conducted to examine the effects of eggshell membrane hydrolysates (ESMH) on the anti-inflammatory, anti-wrinkle, anti-microbial activity, and moisture-protection for cosmetic use. Whole ESMH (before fractionation), and fraction I (>10 kDa), fraction II (3-10 kDa), and fraction III (<3 kDa) of the hydrolysates were assessed in this experiment. As lipopolysaccharide (LPS) and IFN-${\gamma}$ caused the inflammation on Raw264.7 cell, whole ESMH and fraction I showed to be effective in inhibiting the induction of cell inflammation depending on the concentration, and also showed outstanding effect to suppress the skin inflammation. Fraction I inhibited collagenase and elastase activities to a greater extent than the other fractions, while all fractions had antibiotic effects at concentrations of 10 mg/disc and 20 mg/disc. In addition, it showed the moisture protection effects of skin on the holding amount and losing amount of moisture in upper-inner arm of the human body with a relatively low loss rate in skin, which confirmed that the hydrolyzed fractions of ESM helps to form the superior protective layer of moisture. It was concluded that ESMH fractions with different molecular weights, especially the 10 kDa fraction, have anti-lipopolysaccharide, anti-IFN-${\gamma}$-induced inflammation, anti-collagenase and elastase activities, and thus can be used as a cosmetic agent to protect skin.

산업체 단체급식소의 위생관리 실태조사 -마산, 창원지역을 중심으로- (A Study of Survey on the Sanitary Management of the Industry Group Food Service - ln Masan and Changweon Area)

  • 신동주
    • 환경위생공학
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    • 제5권2호
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    • pp.81-94
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    • 1990
  • The view of this research was to investigate the state of a sanitary management in the industrial area of Masan and Changweon cities through the nutritionists who works in the group food service facilities. The following results are as indicated . 1. The management types of group food service facilities are a direct management 89.7% , a consignned management 7.7% , an(1 a semimanagement 2.6% . 2. The survey for purulent inflammation and a possible disease of a cook is 59.0%. In the case of a wound of hand and foot and disease, the rate of non-worked people is 51.3% 3.4 regular medical examination of a cook was generally well executed, but only 64.1% were received an examination of the feces, and 88.0%, among them had one time per 6months. 4. Wearing a cap, a gown, and a private foot-wear in a kitchen of the cook was well executed, but nowhere was found to put on a mask 5. Only 11.5% of the group feeding facilities had a their own sterilizing lamp, and the company with a repository in a low temperature was 25.6% , 6.4 private toilet of the cook were estabilshed at rate of 38.5% , and also a private toilet providing with a sterilizing soap was 52.6% . 7. The pasteurization of a kitchen table before cooking was 28.2%, In the case of using a cooking dipper, spoon, tweezers when one taste was 83.3% , and using a hand when one dish up was 74.4 %. 8. When one use a raw egg, washing a shell was 35.9%. 9. The rate of a nutritionists writing a diary of the sanitary check-up was 75.6%, and only 23.1% of the facilities was provided with a preserved food. 14.1% of the nutritionists did a sanitary eaucation periodically.

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한국식단의 식품배합을 통한 단백질의 질적상승효과 (A Study on the Enhancement of Protein Quality by Food Combinations in Korean Diet)

  • 김성애;이양자;이기열
    • Journal of Nutrition and Health
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    • 제17권4호
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    • pp.262-272
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    • 1984
  • A study on the balance of essential amino acids in Korean diet and further investigation on quality of protein through optimum combination of foods using the least square method based on FAO/WHO (1973) provisional score patterns were carried out The results of the optimum gross combination are summarized as follows: 1) The first limiting amino acids of the Korean diet was found to be methionine and cysteine based on both whole egg and FAO/WHO (1973) provisional score patterns. 2) Weight ratios between rice and beef, chicken, pork, rabbit meat are 7 : 3, 4 : 1, 4 : 1, and 3 : 1. The amino acid score and the least amino acid are 100(phe+tyr), 99(thr), 111(trp), and 109(leu) for each combination. This result indicates that pork and rabbit meat can be high quality protein sources for the rice eating people. 3) Weight ratios between rice and anchovy, saury, ark shell, pollack, cuttle fish, tuna and herring are 2 : 1, 5 : 1, 3 : 2, 3 : 1, 3 : 1, 4 : 1, and 3 : 1. 4) Weight ratios between potato and rice, wheat flour are 8 : 1 and 24 : 1. Lysine, the limiting amino acid of rice and wheat flour can be complemented by combining these with potato. 5) It is possible to apply this idea on typical Korean dishes. For example, in case of soybean-sprout rice the optimum combinations of rice : soybean-sprout : pork and rice : soybean-sprout : beef are 4 : 1 : 1 and 11 : 1 : 5. It is of utmost importance to pursue further more desirable combinations with more complex food items and transform the result obtained by the computer analysis into more practical terms for practical use.

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묵납자루, Acheilognathus signifer (Cyprinidae; Acheilognathinae)의 패 내 산란과 적응전략 (Spawning in Mussel and Adaptation Strategy of Acheilognathus signifer (Cyprinidae: Acheilognathinae))

  • 백현민;송호복
    • 한국어류학회지
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    • 제17권2호
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    • pp.105-111
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    • 2005
  • A. signifer의 숙주 조개인 U. douglasiae sinuolatus 각 장이 30~45 mm에서 대부분의 알과 자어가 발견되었으며, 각장이 30 mm 이상에서는 크기에 따른 선택성의 차이는 없었다. 조개 내에서 발견된 난 및 전기자어의 수는 1~7개(마리)이었으며, 난 또는 자어의 보유율은 1개(마리)가 50.0%로 가장 높았고, 조개 1개체 당 평균 보유수는 2.5개 (마리)였다. A. signifer의 전기자어는 조개내에서 유영능력을 갖추면 상새방으로 이동하였으며, 상새방에서 성장기간은 4~6주 정도로 추정되었다. 전기자어의 표피상 돌기는 부화 직후부터 관찰되었다. 부화 7일째부터 표피상돌기의 흡수가 진행되기 시작하였으며, 부화 13일째부터 대부분의 표피상돌기는 흡수되었고, 난황이 완전히 흡수된 직후인 부화 20일 후에는 표피상돌기가 완전히 흡수되었다.

집누에(Bombyx mori)와 멧누에(Bombyx mandayina)의 종간교잡에 있어서 란각구조 및 Chorion 단백질 (Morphological and Biochemical Characterization of the Chorion in Interspecific Hybrid Between Bombyx mori and Bombyx mandarina)

  • 김종길;노시갑
    • 한국잠사곤충학회지
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    • 제36권1호
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    • pp.30-36
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    • 1994
  • 집누에와 멧누에의 종간교잡에 의한 란각구조 및 chorion 단백질의 변이와 양 종간의 유연관계를 검토했다. 1. 교잡종 란의 측면부의 란각표면구조는 양 종이 모두 집누에와 유사한 그물상구조를 나타내지만 각각의 교잡 모체쪽의 구조와 유사했다. 2. 교잡종에서의 란각단면구조는 멧누에의 구조와 유사했으며 최외층인 덮개층은 측면부에서 주변부로 갈수록 더욱 뚜렷이 관찰되었다. 3. Chorion 단백질의 성분분석 결과 등전점이 4.0-6.5 분자량 10-50 kd 사이에 대부분의 성분이 검출되었으며 교잡종이 chorion 단백질성분은 영동 pattern, 성분수, 등전점 및 분자량 등에 있어서 교잡모체의 chorion 단백질과 유사했다.

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서해 꽃게 자망의 망목 선택성 연구 (Mesh selectivity of gill net for swimming crab Potunus trituberculatus in the western coastal waters of Korea)

  • 박창두;조삼광;김현영;박성욱
    • 수산해양기술연구
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    • 제49권2호
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    • pp.106-115
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    • 2013
  • A series of fishing experiments were carried out in the western coastal waters of Korea from May, 2006 to September, 2007, using gill nets of different mesh sizes (m=101, 121.8, 152.5, 176.8, and 191 mm) to determine the mesh selectivity of gill net for swimming crab, Potunus trituberculatus. The catch species was composed of swimming crab (87%), Thomas's rapa whelk Rapana venosa (5%), arthritic neptune Neptunea cumingi (2%), Japanese swimming crab Charybdis japonica (2%), marbled sole Pleuronectes yokohamae (1%), pen shell Atrina pectinata, ocellate spot skate Okamejei kenojei, and so on. The carapace length (CL) of each swimming crab caught in the experimental nets was measured. Sponge crab (egg-bearing female crab) was appeared from the end of June to August in the coastal waters. The master selection curve was estimated by applying the extended Kitahara's method. The selection curve showed that the gill nets of larger mesh size allowed more crabs of small carapace size to escape. The optimum value (CL/m) was 0.645 and the CL/m was estimated to be 0.301, 0.354, 0.391, 0.422, and 0.450 when the retention probabilities were 0.1, 0.2, 0.3, 0.4 and 0.5, respectively.

경북 일부지역 유아들의 비만과 이에 관련된 요인에 관한 연구 - 식습관, 식품기호도 및 스트레스를 중심으로 - (Related factors on Overweight among Young Children in the Kungbuk area)

  • 박경애;김선희
    • 대한가정학회지
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    • 제43권5호
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    • pp.199-219
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    • 2005
  • The purpose of this study was to investigate the prevalence and to identify the related factors of overweight among young children. The study subjects were 138 children, aged 3-5, attending child care centers in the Kyungbuk area. We assessed a wide range of collected variables including general characteristics, anthropometric data, dietary habits, stress, food preferences, and food frequencies of young children, and anthropometric data and general characteristics of their parents. The results of this study were analyzed with $\chi$$^{2}$_ or t-test using SPSS package program. The subjects were classified into two groups using the weight for length index WLI criteria: normal group(n=101) and overweight group(n=37). Forty-nine percent of mothers of overweight children did not recognize their child's current overweight status. Scores for encountering criticized-violent situation stress, hurt-pride stress and total stress were higher in the overweight group than in the normal group. The frequency of snacking and the appetite of the overweight group were increased compared to those of the normal group. The overweight group had higher preferences for salad, kimbab, boiled rice with meat, vegetables and Chinese noodles, chicken, shell, banana, soybean milk, hotdog, and potato than the normal group. The overweight group showed higher consumption frequencies of pan-fried foods, egg, laver and strawbery compared to the normal group. Therefore, our results suggest that obese young children, as well as their parents, need more nutritional counseling education about dietary habits, food preference, recognition of normal weight and strategies for actively coping with stresstopreventandtreatobesityandtomaintainhealth. .

Detection Trend of Helminth Eggs in the Strata Soil Samples from Ancient Historic Places of Korea

  • Seo, Min;Chai, Jong-Yil;Kim, Myeung Ju;Shim, Sang Yuk;Ki, Ho Chul;Shin, Dong Hoon
    • Parasites, Hosts and Diseases
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    • 제54권5호
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    • pp.555-563
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    • 2016
  • For several years, we have conducted a series of studies on the patterns of ancient parasitism prevailing in the soil of rural and urban areas of past Kingdom of Korea. Actually, during our survey of paleoparasitology in archaeological sites of Korean peninsula, numerous ancient parasite eggs were discovered in the samples from the city districts of Hansung (Joseon) and Buyeo (Baikje), the palace moat at Gyeongju (Silla), shell-midden site at Bonghwang-dong (Silla to Joseon), and the reservoir found in Hwawangsansung fortress (Silla). By the paleoparasitological studies, with respect to parasitism in the high-density populations of ancient towns and cities, we have managed to catch glimpses of the patterns prevalent therein: a serious parasitic contamination of the soil in ancient urban areas, but not in rural areas of the past. Our historical research also proposed the plausible mechanism of parasite infection very serious indeed among urban populations in Korean history. Although city dwelling doubtless has accrued significant benefits for people and populations with agriculture, it can be equally supposed that living in such highly populated areas might have facilitated the spread of parasite infection.