• Title/Summary/Keyword: 난 특성

Search Result 395, Processing Time 0.034 seconds

The Effect of Feeding Managements on Physiological Characteristics, Productivity and Characteristics of the Loin Muscle of Jeju Cross-bred Horses (사양환경이 제주산마(제주마×더러브렛)의 생리적 특성과 생산성 및 등심근 특성에 미치는 영향)

  • Woo, Jae-Hoon;Son, Jun-Kyu;Yang, Byung-Chul;Kim, Nam-Young;Shin, Sang-Min;Shin, Moon-Cheol;Yoo, Ji-Hyun;Park, Nam Geon
    • Journal of The Korean Society of Grassland and Forage Science
    • /
    • v.38 no.4
    • /
    • pp.273-279
    • /
    • 2018
  • This experiment was conducted to investigate the effects of individual management and group management of Jeju cross-bred horses on the physiological characteristics, productivity, and characteristics of the loin muscle of the horse meat. Sixteen herds of Jeju cross-bred horses older than 44 months were selected as experimental subjects. The experiment was conducted by dividing the herds into eight herds for individual management and another eight herds for group management. Herds were fed with concentrated feed of 2.5% of the body weight for four times a day and roughage and water were fed ad libitum. In the 12th week, the intestinal pH was statistically significantly lower with group management than with individual management (p<0.05). However, no symptoms of colic were observed. With regard to the general composition of the loin muscle, fat content was a statistically significant difference between the 7.83% with individual management and 5.65% with group management (p<0.05), indicating that individual management is more effective than group management in terms of fattening. In conclusion, feeding a concentrated feed at a level of 2.5% of body weight with individual management during fattening of Jeju cross-bred horses could be utilized as a fattening method.

Thermal Stability of Cysteine Proteinase Inhibitor of Tilapia (Oreochromis niloticus) Egg and Serum (Tilapia(Oreochromis niloticus) 난과 혈청 Cysteine Proteinase 저해제의 저온 및 열 안정성)

  • Choi, Seong-Hee;Kwon, Hyuk-Chu;Kwon, Joon-Yeong
    • Development and Reproduction
    • /
    • v.10 no.4
    • /
    • pp.263-269
    • /
    • 2006
  • To evaluate the potentiality of industrial use of cysteine proteinase inhibitor (cystatin) of tilapia egg and serum stability of the tilapia cystatin on low temperature storage and heat treatment was studied. When the eggs were stored at $4^{\circ}C$ for 3 days the cystatin activity was not changed much, while the supernatant of egg homogenate lost its cystatin activity significantly, remaining only about 65% of initial activity. When the eggs and serum were subjected to repeated freeze at $-20^{\circ}C$ and thaw at room temperature once a day, the egg cystatin was decreased after 5 cycles of freeze and thaw. However the serum cystatin was not changed by the 5 times repetition of freeze and thaw. More than 80% of egg cystatin activity was remained when the egg was heated at $35^{\circ}C$ for 30 min, but less than 10% was remained when heated at $50^{\circ}C$. On the other hand, the serum cystatin was very resistant to heat, remaining about 74% after heating at as high as $80^{\circ}C$ for 30 min. In summary, the egg cystatin was more stable when stored as intact form of egg rather than as supernatant of homogenate when stored at refrigeration. Egg cystatin was relatively stable against repeated freeze-thaw, and serum was found to be more stable in cysteine proteinase inhibitory activity than egg. Egg cystatin was not very resistant to heat treatment, while serum cystatin was quite resistant to high temperature heat treatment. These results suggest that tilapia egg and serum, especially the serum, would be a useful source for cysteine proteinase inhibitor in surimi production.

  • PDF

Characteristics of Anthracnose of Orchids Caused by Colletotrichum gloeosporioides (Colletotrichum gloeosporioides에 의한 난 탄저병의 발생 특성)

  • 박숙영;정희정;김가영;고영진
    • Korean Journal Plant Pathology
    • /
    • v.12 no.4
    • /
    • pp.455-458
    • /
    • 1996
  • 난 탄저병균의 배양적 특성과 탄저병의 발생 특성을 조사하였다. 자연 발병한 양란과 호접란의 잎에는 초기에 암갈색 또는 검은색의 둥글고 작은 반점이 형성되어 점차 진전되면서 검게타고 병이 진전됨에 따라 잎전체가 고사하고 심할 경우 줄기와 식물체 전체가 고사하였다. 탄저병에 감염된 양란과 호접란의 병환부로부터 분리된 Colletotrichum gloeosporioides는 상처접종에 의해서만 각각 양란과 호접란 병원성을 나타내었고, 덴파레 및 춘란에 대해서도 모두 병원성을 나타내었다. 양란은 상위엽일수록 탄저병균에 대해 감수성을 나타내었으며, 호접란이 탄저병균에 대해 감수성을 나타낸 반면에 춘란이 가장 저항성을 나타내었으며 양란과 덴파레는 중도 반응을 보였다. 탄저병균의 균사생장과 분생포자형성 적온은 각각 $25^{\circ}C$였으며, 베노밀 수화제와 비타놀 수화제에 대하여 감수성을 나타내었다.

  • PDF

Numerical Study on Propagation Characteristics of Tsunami Induced by Tokai, Tonankai and Nankai Massive Earthquakes (토카이, 토난카이 및 난카이 대규모 지진으로 인한 지진해일의 전파특성에 관한 수치적 연구)

  • Kawasaki, Koji;Suzuki, Kazuki;Lee, Kwang-Ho;Kim, Do-Sam
    • Journal of Korean Society of Coastal and Ocean Engineers
    • /
    • v.25 no.6
    • /
    • pp.386-393
    • /
    • 2013
  • After the 2011 Tohoku Earthquake, it has been pointed out that Tokai, Tonankai and Nankai massive earthquakes with a magnitude of 9.0 could strike the Pacific coasts in western Japan. This study aims at investigating numerically propagation characteristics of tsunami generated by a 9.0 magnitude Tokai, Tonankai and Nankai massive earthquakes on the Pacific coasts and three major bays in Japan, Tokyo Bay, Ise Bay and Osaka Bay. It was revealed from the numerical results that the tsunami heights on the Pacific coasts for M9.0 earthquake were about twice as much as those for M8.7 earthquake and the first tsunami arrival time was faster at some areas distant from the tsunami source. Moreover, high water level in the bays was recognized to continue for a long time because of the enclosed bays.

Development of Imagery-Focused Music Listening Program to Improve Emotion Regulation Among Infertile Women (난임 여성의 정서조절기술 향상을 위한 심상 중심 음악감상 프로그램 개발)

  • Rho, Yoonhee
    • Journal of Music and Human Behavior
    • /
    • v.17 no.2
    • /
    • pp.29-56
    • /
    • 2020
  • The purpose of this study was to develop and validate an imagery-focused music listening program for improving emotion regulation among infertile women. For the program development in this study, the literature on emotional issues and coping strategy of infertile women was analyzed to establish theoretical foundation; and the literature on Supportive Music and Imagery (SMI) was analyzed to identify intervention components. Based on the established theoretical framework, the program was developed and finalized after evaluation of validity by four SMI professionals. The developed program was found to systematically target changes in emotions in the step-wise process of discovery, reinforcement, and affirmation of positive emotional resources. The list of music for future use was also identified and presented after systematic analysis of musical features in relation to valence and arousal of emotions. The imagery-focused music listening program was an initial approach to infertile women with SMI, which indicates the possibility of extended application for broadened clinical population.

Variation of Lignan Content for Sesame Seed Across Origin and Growing Environments (참깨 원산지 및 재배지역에 따른 리그난 함량 변이)

  • Kim, Sung-Up;Oh, Ki-Won;Lee, Myoung-Hee;Lee, Byoung-Kyu;Pae, Suk-Bok;Hwang, Chung-Dong;Kim, Myung-Sik;Baek, In-Youl;Lee, Jeong-Dong
    • KOREAN JOURNAL OF CROP SCIENCE
    • /
    • v.59 no.2
    • /
    • pp.151-161
    • /
    • 2014
  • Sesame lignan, including sesamin and sesamolin has been reported to have various content according to accessions and environmental factors. The objective of this study were to analyze the lignan variation of 143 sesame accessions from core collection in Korea and to test the effects of growing years and locations on lignan and lipid content of Korea sesame elite lines. The results showed that the core sesame germplasm in Korea has broad variation of lignan content from 2.33 to 12.17 mg/g with an average 8.18 mg/g. Among tested sesame accessions, the IT184615 had the highest lignan content of as 12.17 mg/g. So this accession will be a good genetic resource for developing a high lignan sesame variety. The sesamin and sesamolin content for sesame accessions across origin had significant difference. The average lignan content of accessions collected from Russia (10.0 mg/g) and Nepal (9.08 mg/g) were relatively higher than other countries. The sesamin and sesamolin content for sesame accessions across seed coat color had significant difference. The average lignan content of sesame with white, brown and black seed coat color was 8.61, 7.51, and 5.49 mg/g, respectively. The variation of lignan and lipid content was significantly different across elite lines, locations and growing years. Therefore, it is important to find sesame accessions having high lignan content with environmental stability.

The Comparison in the Physicochemical Properties of Sesame Seeds by Producing Areas (산지에 따른 참깨종자의 이화학적 특성 비교)

  • Lee, Min-Jung;Kim, Ki-Hong
    • Applied Biological Chemistry
    • /
    • v.48 no.2
    • /
    • pp.128-131
    • /
    • 2005
  • Sesame seed is known as a good nutritional source containing high oil (51%) and protein (20%). Sesame oil contains a very high oxidative stability compared to other vegetable oils. To obtain basic information for quality evaluation, imported and domestic sesame seeds were investigated to measure general components (ash, protein, moisture and oil), fatty acid composition and lignan content. Although the protein contents were the highest in domestic sesame seeds, yet the lipid contents were the highest in imported sesame seeds. Unsaturated fatty acids such as oleic acid and linoleic acids were the highest in the domestic sesame seeds. Lignan contents, the most important component known as antioxidant, were significantly higher in domestic sesame seeds than other imported sesame seeds. These results suggest that domestic sesame seed may have the best quality in terms of the functional components.