• Title/Summary/Keyword: quality of contents

Search Result 8,246, Processing Time 0.034 seconds

Physico-chemical Meat Quality Properties and Nutritional Composition of Hanwoo Steer Beef with 1++ Quality Grade (1++ 등급 거세한우의 부위별 이화학적 육질특성 및 영양성분조성)

  • Cho, S.H.;Kim, J.H.;Seong, P.N.;Cho, Y.M.;Chung, W.T.;Park, B.Y.;Chung, M.O.;Kim, D.H.;Lee, J.M.;Ahn, C.N.
    • Food Science of Animal Resources
    • /
    • v.28 no.4
    • /
    • pp.422-430
    • /
    • 2008
  • This study was conducted to investigate the nutritional composition and meat quality properties of Hanwoo steer beef by different cut. Ten cuts [Abjin (short plate), Bosup (top sirloin), Cheggt (striploin), Dngsim (loin), Guri (chuck tender), Hongduke (eye of round), Moksim (chuck roll), Sulgit (bottom round), Udoon (top round), Yanaji (brisket)] prepared from 10 Hanwoo steers (28-30 months old) were used for this experiment. The range of pH was 5.46-5.64. In the chemical analysis, Hongduke contained highest protein contents (21.15%) and Dngsim had lowest protein contents (16.94%) (p<0.05). Fat contents were higher in Dngsim whereas those of Guri, Hongduke and Udoon were significantly lower when compared to the other cuts (p<0.05). There were not significantly different in meat color (L, a and b values) properties only except that L values were significantly higher in Dngsim among 10 cuts (p<0.05). Cooking loss (%) was higher in Guri, Hongduke, Udoon and Yangji whereas it was significantly love. in Cheggt (p<0.05). Warner-Bratzler shear force (WBS) was significantly higher in Abjin $(6.24inch^2/kg)$, whereas Dngsim $(3.45inch^2/kg)$ and Cheggt $(3.50inch^2/kg)$ were significantly lower than the other cuts (p<0.05). There was no significant difference in water-holding capacity (WHC) among 10 cuts (p>0.05). Total amino acid contents were significantly higher in Hongduke (p<0.05). Hongduke was highest in most kinds of amino acids, however, Udoon had the highest methionine and histidine contents among 10 cuts (p<0.05). Glutamate contents were high in all cuts and followed by aspartate, leucine and lysin. With regard to mineral contents, Ca was ranged from 47.63-70.69 mg/kg and Fe was ranged from 15.09-26.68 mg/kg in 10 cuts. Zn was highly contained in Guri (50.56 mg/kg) when compared to the other cuts (p<0.05).

Comparison of Fatty Acid Composition of Hanwoo Beef by Different Quality Grades and Cuts (한우육의 육질등급 및 부위 별 지방산 조성 비교)

  • Lee, Yeon-Jung;Kim, Cheon-Jei;Kim, Jin-Hyong;Park, Beom-Young;Seong, Pil-Nam;Kang, Geun-Ho;Kim, Dong-Hun;Cho, Soo-Hyun
    • Food Science of Animal Resources
    • /
    • v.30 no.1
    • /
    • pp.110-119
    • /
    • 2010
  • The fatty acid composition of Hanwoo beef was investigated by different quality grades and cuts. Five cuts (strip loin, loin, chuck roll, top round, brisket) were obtained from 15 Hanwoo beef cattle [bulls and steers, 24-30 mon old]. For each quality grade of $1^{++}$, $1^+$, 1, 2, 3, three animals were selected. The contents of C18:0 in chuck roll, strip loin, brisket, top round and loin were significantly higher in 3 quality grades than those of the other grades respectively (p<0.05). The C18:1n9 content in the chuck roll was not significantly different among the different grades, but those of strip loin, top round, brisket, and loin were significantly higher in $1^{++}$ quality grade than those of 3 quality grade (p<0.05). The C18:3n3 content was significantly higher in brisket of $1^{++}$ quality grade and loin of 3 quality grade than the other grades for the same cut (p<0.05). However, those of strip loin, top round and chuck roll were not significantly different (p>0.05) among the different grades. The C18:3n6 content in chuck roll and loin was significantly higher for 2 quality grade than in those of the other grades (p<0.05). For five cuts, total SFA contents for 3 quality grade were significantly higher than in other cuts. The total MUFA content of $1^{++}$ quality grade was significantly higher than in 3 quality grade (p<0.05). The total n-3 PUFA content was not significantly different in chuck roll, strip loin and top round; however, those of brisket were significantly higher in $1^{++}$ quality grade (0.15%) and those of loin were significantly higher in 3 quality grade than in the other grades (p<0.05). The total n-6 PUFA content was significantly higher in 3 quality grade than in those of the other grades (p<0.05).

Evaluation of Specialized Library Service Quality and User Satisfaction in the Digital Environment (디지털 환경의 전문도서관 서비스 품질과 이용자 만족도에 관한 평가)

  • Lee, Myeong-Hee;Baek, Hyun-Ju
    • Journal of the Korean BIBLIA Society for library and Information Science
    • /
    • v.25 no.1
    • /
    • pp.343-361
    • /
    • 2014
  • This research was conducted to measure the satisfaction level of users and the service quality of specialized libraries in the digital environment. 289 users of 24 government-funded institutes were divided into humanity/social science area and science/technology area for comparison. Using seven hypotheses, the tests were conducted between three independent variables, service quality, space quality, and information quality and one dependent variable, user satisfaction. It was concluded that the competence and quality of the librarian, library homepage, and quality of information are most critical for user satisfaction. Suggestions are made: an improvement in the service quality and specialization of the librarian's skills, a need for librarian's courtesy education, a provision of differentiated and specialized quality of information, an easy access to the library homepage, and supports on the contents and information search.

A Study on Generic Quality Model from Comparison between Korean and French Evaluation Criteria for e-Learning Quality Assurance of Media Convergence (한국과 프랑스의 IT융합 이러닝 품질인증 평가준거 비교와 일반화 모형 연구)

  • Han, Tea-In
    • Journal of Digital Convergence
    • /
    • v.15 no.3
    • /
    • pp.55-64
    • /
    • 2017
  • This study identified the important categories and items about evaluation criteria of e-learning quality assurance by comparing evaluation criteria between Korea and France case. For deriving the conclusion, this research analyzed the Korea quality assurance case which is consist of success or failure for evaluation of quality assurance, and built the generic quality model of e-learning evaluation criteria. A generic model about evaluation criteria, categories, and item of e-learning quality assurance, which should be reflected on French quality criteria, were developed based on statistical approach. This research suggests a evaluation criteria which can be applied to African and Asian countries, that are related to AUF, as well as Korea. The result of this study can be applied to all organizations around the world which prepare for e-learning quality assurance, and at the same time it will be a valuable resource for companies or institutions which want to be evaluated e-learning quality assurance.

Optimization for Preparation of Perilla Jangachi according to Steaming Time and Onion Contents (찌는 시간과 양파 첨가량에 따른 깻잎장아찌의 최적화)

  • Lee, Hye-Ran;Nam, Sang-Min;Lee, Jong-Mee
    • Journal of the Korean Society of Food Culture
    • /
    • v.17 no.5
    • /
    • pp.653-662
    • /
    • 2002
  • Korean native Perilla Jangachi (salted and fermented vegetable) is popular and well-known but little study on its composition and most palatable condition has been reported. This study was performed to observe the change in the contents of chemical components and sensory evaluation of Perilla Jangachi which was prepared through two processing. First, as a pretreatment, Perilla leaves were soaked in salt water. The optimal level of salt concentration and soaking time (salt 4%, soaking time 42hours) was determined. Second, soaked Perilla Jangachi was steamed and then fermented in various ingredients like soy sauce, sugar, onion and so on. In this study, Perilla Jangachi was made by 3 levels of steaming time(30 seconds, 60 seconds, 90 seconds) and onion contents (10%, 30%, 50%). The optimal level of onion contents and steaming time was determined with the results of sensory evaluation by response surface methodology and analysis of composition. Sodium contents were decreased as the levels of onion contents were increased. Flavonoids contents weren't increased although contents of onion were increased. But they were influenced on steaming time that as the levels of steaming time were shortened, flavonoids contents were increased. To lengthen the shelf-life of Perilla Jangachi, the activities of enzyme peroxidase - which changes Jangachi's quality bad - by various levels of steaming time were measured. After steaming 50 seconds, peroxidase became inactive. Reducing sugar contents were decreased relying on either increased steaming time and onion contents. While steaming 30 seconds and 10% onion contents, the content of reducing sugar was 0.858% but steaming 90 seconds and 50% onion contents, it became 0.372%. Among the sensory attributes, brownness was increased as onion contents increased and steaming more than 60 seconds. Saltiness, sweetness, perilla flavor were greater relying on decreased onion contents. Toughness was decreased as both the amounts of onion and steaming time were increased. With this results, the most optimal adding level of onion content and steaming time was determined. Steaming 72 seconds and adding onion 27% was established as a optimal condition of Perilla Jangachi.

A Comfortable Imaging on Display

  • Kotera, Hiroaki
    • 한국정보디스플레이학회:학술대회논문집
    • /
    • 2004.08a
    • /
    • pp.436-439
    • /
    • 2004
  • Most of past image processing systems have been designed independent of image contents. Now, evolving computation power is making the "image-dependent" elegant algorithms possible to get the better image renditions on display. This paper introduces our recent approaches to quality and pleasant imaging based on image-dependent. Three typical approaches to comfortable "Sharpness", "Lightness", and "Color" renditions on display image arc presented.

  • PDF

Quality Characteristics of Mokwapyun Containing Various Amount of Tapioca Starch (타피오카 전분을 첨가한 모과편의 품질 특성)

  • Kim, Ga-Hyun;Park, Geum-Soon
    • Journal of the East Asian Society of Dietary Life
    • /
    • v.23 no.4
    • /
    • pp.444-450
    • /
    • 2013
  • The purpose of this study is to evaluate chemical properties, textural characteristics and sensory properties which produces the mokwapyun from the tapioca starch. The mokwapyun-added tapioca starches hold higher moisture contents than mung bean starches. And, the ratios of tapioca starch indicate differences in the study (p<.001). The pH increases with the increasing amounts of tapioca starch and acidity measurement decreases as amount of tapioca starch increases. The 0% addition of tapioca starch is the highest for lightness and 20% addition of tapioca starch is the lowest. Both the redness and yellowness are being increased with increases in the addition of tapioca starch. According to the results of texture, 0% addition of tapioca starch is the highest for hardness, springiness and chewiness of mokwapyun which increases with additional percentages of tapioca starch. Nevertheless, it decreases the cohesiveness and brittleness due to increases in the percentage of tapioca starch. According to the result of DSC analysis, the more tapioca starch added to the mokwapyun, the higher the To, Tp, Tc temperatures become. The result of this study shows that the right contents of tapioca starch with 15% additions make positive acceptability, prepared sensory and machinery characteristics.

The Effect of Blanching and Lactic Acid Bacterial Inoculation on the Quality of Kimchi (열처리 및 젖산균 접종이 김치의 품질에 미치는 영향)

  • Park, Hee-Ok;Kim, Yoo-Kyeong;Yoon, Sun
    • Korean journal of food and cookery science
    • /
    • v.9 no.2
    • /
    • pp.61-66
    • /
    • 1993
  • The object of this study was to investigate the effects of blanching and lactic acid bacterial inoculation on the quality of kimchi. The pHs of the group added Leuconostoc mesenteroides were rapidly decreased, and then kept almost steady states. However, the pHs of the groups added Bifidobacterium bifidum were gradually decreased. Blanching treatment reduced the number of viable cells. At the beginning of the fermentation, the total organic acid contents of the blanched groups were lower than those of the non-blanched groups, but later on they were higher. With fermentation, the contents of malic, citric and fumaric acid were decreased in the control group, but increased in the cultured groups and all blanched groups. The cutting forces of the blanched groups were higher than those of the non-blanched groups during the whole fermentation period. The inoculation of Leu. mesenteroides was effective on the preservation of ascorbic acid. Blanching and the inoculation of Leu. mesenteroides gave good effect on the sensory acceptability. The acceptability of the groups added Bifidobacterium bifidum was low in initial fermentation period, but increased during the late fermentation period.

  • PDF