• Title/Summary/Keyword: after taste

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Performance Evaluation of Powdered Activated Carbon (PAC) Contactor for the Removal of Organics and Taste and Odor (분말활성탄 접촉조의 맛·냄새 및 유기물 제거 효율 평가)

  • Bae, Byung-Uk;Lim, Mun-Gu
    • Journal of Korean Society on Water Environment
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    • v.26 no.4
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    • pp.585-589
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    • 2010
  • In order to evaluate the performance of a powdered activated carbon (PAC) contactor, two water treatment plants (WTP) were selected as target sites. The result of tracer tests showed that the plug flow portion of a bisymmetry-type contactor (H WTP) was more than 70%. A maze-type contactor (C WTP) also had more than 70% of plug flow portion after intra-basin baffles were installed. According to the operating data of the target WTPs, there was no clear evidence that the addition of PAC contributed to the removal of organics. However, the results of jar tests, conducted with the raw water taken from the H WTP, proved that PAC could remove dissolved organic carbon (DOC) to some extent when the proper velocity gradient was maintained. It was estimated that the production rate, defined as the ratio of the operating flowrate to the design flowrate, of the C and H WTPs was only 27 and 50%, respectively. Because of these lower production rates, the mixing intensity in the contactor was much less than the designed value and, finally, the performance of the PAC contactor was much lower than what was expected.

Physical Properties and Preference of a Steamed Sweet Potato Slab after Mild Hot Air Drying (온풍건조 조건에 따른 증절간 고구마의 물리적 특성과 기호도)

  • Shin, Mi-Young;Lee, Won-Young
    • Korean journal of food and cookery science
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    • v.27 no.2
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    • pp.73-81
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    • 2011
  • Two kinds of steamed sweet potatoes were dried with mild hot air to improve quality, convenience and preference as a snack. Steamed sweet potatoes were dried at temperatures ranging from 35 to $65^{\circ}C$ for 12 hr, and moisture contents, colors, texture, and taste were evaluated. The lowest moisture content was 0.25% at $65^{\circ}C$. Color values (L, a, b and ${\Delta}E$) decreased with increasing drying temperature and drying time in both chestnut-sweet potatoes and pumpkin-sweet potatoes. Reducing sugars and soluble solids increased quickly at high drying temperatures. The highest hardness value for chestnut-sweet potatoes was $26.31\;kg_f /cm^2$when they were dried at $65^{\circ}C$ for 12 hrs. Springiness and cohesiveness were higher than those in chestnut-sweet potatoes. The highest taste score was for a dried chestnut-sweet potatoes at $55^{\circ}C$ for 6 hr and a dried pumpkin-sweet potatoes at 45 or $55^{\circ}C$ for 6 hr.

Effect of Green Tea on Kimchi Quality and Sensory Characteristics (녹차의 첨가가 김치의 품질과 관능적 특성에 미치는 영향)

  • Park, Hae-Jin;Kim, Soon-Im;Lee, Yun-Kyoung;Han, Young-Sil
    • Korean journal of food and cookery science
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    • v.10 no.4
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    • pp.315-321
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    • 1994
  • The addition of green tea to kimchi making for extanding the optimum edible period was studied. The equality and sensory characteristics of green tea added kimchi were evaluated. The acidity, lactic acid and acetic acid contents of green tea added kimchi showed lower than that of control kimchi but reducing sugar and vitamin C contents was higher. The duration of optimum edible periods of green tea added kimchi lasted two more weeks. While the optimum pH of kimchi for eating lasted, the sensory pannel score for sour taste of green tea added kimchi was lower than that of control but the scores for overall quality and hardness were higher. Especially, the sour taste score between two groups were significantly different(p<0.05). There was no differences in texture determined by Penetrometer between green tea added kimchi and control kimchi until the fermentation reached the optimal condition for eating. After that period, the degree of degradation of texture was much delayed in green tea added kimchi.

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Effects of Crude ε-poly-L-lysine in Streptomyces albulus Broth on Suppression of Microbial Growth in Korean Kimchi (폴리리신을 함유한 Streptomyces albulus 배양액의 김치미생물 성장억제 효과)

  • Kim, Kwang-sub;Lee, Garpee;Sun, Heung-suk;Ahn, Chi-min;Park, Chanyoung
    • Journal of the Korean Society of Industry Convergence
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    • v.2 no.1
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    • pp.91-95
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    • 1999
  • The Streptomyces albulus broth, when the polylysine in the broth, that has powerful growth inhibiting effect far many microbes, is its maximum, had filtered off the cells, to use the broth as preservative for keeping favorable taste of Korean Kimchi. Some microorganisms in their specific growth medium, known to deteriorate the useful nutrient of the Kimchi, has grown with different amounts of the inhibiting broth, to determine the minimum growth inhibition concentration. The ${\varepsilon}$-poly-L-lysine had been identified from the IR spectroscopic analysis of the purified poly lysine of the broth from ion exchange chromatographic separation. The content of the polylysine had been determined by methyl orange decoloration effect. Though the minimum inhibition concentration, evaluated by the naked eye based on the conventional method measuring the turbid feature after 18 hours of culture, has different values each other, the observed effects confirmed that the crude broth could be used as a natural preservative for the Kimchi in extending the fair taste.

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An Analysis of The Fusion Cuisine Recipe on Mass Media (주요 매체에 게재된 퓨전요리의 레시피 분석)

  • 신애숙;안형기
    • Culinary science and hospitality research
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    • v.7 no.3
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    • pp.163-178
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    • 2001
  • The purpose of this study is analysis of fusion cuisine recipe a gathering datum and informations for development of the fusion cuisine. The fusion cuisine is a new creative cuisine that come from a mixing between different cuisine recipe especially eastern cuisine wi th western cuisine. The fusion food is becoming a world popular food since 1980's. In Korea, the fusion food is favorite food is needed for development of the fusion cuisine, and we are able to get the datum and informations from mass media such as cuisine journals, newspapers and internet web site. Results of the analysis are as follows : 1. The fusion cuisine that core stuff is the grain have features that make a use of a spice and fat such as butter and olive oil. Boiling is used most frequently as a way of cooking among the grain centred fusion cuisine. Spagetti is used very after as a stuff for the fusion food. 2. The fusion cuisine that core stuff is meat make use of unusual meat such as the pigeons and spicery, and its popular cooking way is a baking. 3, The fusion cuisine that core stuff is a fish make use of herbs and alchole to get rid of a fishy smell, and various sauces are used for promoting taste and styling. 4. The fusion cuisine that core stuff is fruit and vegetables make use of boiling as cooking ways most frequently, but in the case that cook try to keep nutritive qualities, baking is used most frequently. 5. In beverage centred fusion cuisine, mixing of alchole with juice is most popular, its taste and color is unusually gorgeous.

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A Study on Rheological and Texture of Saccharification Process Cooked Rice, Glutinous Rice, potato and Sweet Potato (서류의 당화과정중 물성 및 Texture에 관한 연구)

  • 강선희;김경자;곽연주
    • Korean journal of food and cookery science
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    • v.7 no.2
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    • pp.7-18
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    • 1991
  • This study was experimented saccharification process added malt extract solution into cooked sweet potato and potato with time, temperature and was tested reducing sugar changes, structural changes, pH and sensory evaluation about cooked shik-hae of rice, glutinous rice, potato, sweet potato. The results are summarized as follows: 1. Enzyme activity was highest in malt after four days of barley germination at a room temperature. 2. Electronmicroscopic observation indicated that raw starch granule of potato and that of sweet potato was 25-60$\mu\textrm{m}$ and 8~18$\mu\textrm{m}$ in size, respectively and its shape is oval and globular for potato and sweet potato respectively. 3. Reducing sugars were 1,682.6mg and 1,695.6mg in rice and glutinous rice, respectively, for 6-hour-saccharification at $50^{\circ}C$. Reducing sugars were 1,689.1mg and 1,497.8mg in sweet potato, potato, respectively, for 6.hour-saccharification at $60^{\circ}C$. 4. pH variation during saccharification for sweet potato and potato was pH 5.8~5.4. 5. Sensory evalution showed that there were more significant differences in sweety odor, roasted nutty taste and sweety taste of sweet potato among four samples than the other's color shininess.

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A Study on Design and Construction of Anap Pond with a Comparative Study of Ancient Palace Ponds in Korea, China and Japan (한.중.일 고대 원지 비교 분석을 통한 안압지 조영계획의 연구)

  • 박경자;양병이
    • Journal of the Korean Institute of Landscape Architecture
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    • v.29 no.3
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    • pp.1-9
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    • 2001
  • The purpose of this article is to study the design and construction of Anap pond with a comparative study of ancient palace ponds in Korea, China and Japan. Anap pond was excavated in 1975-6 and is the oldest orignal pond to be found among Koran garden sites. Anap pond was made just before Shilla drove out Tang, after Shilla ruined Paekjae and Koguryo with the Tang army. This was a time Shilla enjoyed a multi-cultural situation due to interaction with Paekjae and Koguryo refugees, as well as information provided by the ambassadors sent to Tang who were well aquainted with Tang culture. Anap pond shows the influence of not only the indigenous mountain-god myth, but also the theoretical background common among Korea, China and Japan. But it also depicts the special form of space inbued with the exquisite aesthetic taste of Shilla people, which started with Anap pond hardened in Gaen temple, and which bloomed in Sukgulam. Scenery structure analysis gives a supposition of the center building on the western coatland, and sequential analysis gives the feeling of being at sea, analysised by root square shape analysis, equal ratio square shape and golden section, sow we can see the planned space organization by speculated planning. Thus, Anap pond is a garden of Shilla in which the cultural exchange has been inculturated and made our own, and the special aesthetic taste embodied.

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A Survey on Uses, Preference and Recognition of Apple (사과의 이용실태, 기호도 및 인식에 대한 조사연구)

  • Choi, Young-Hee;Lee, Su-Jin
    • Journal of the Korean Society of Food Culture
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    • v.20 no.2
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    • pp.204-213
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    • 2005
  • This study was focused on the analysis of questionnaire that surveyed the uses, preference and recognition on apple. The subjects of this study consisted of 452 female(married 238, unmarried 214) in Daegu area. Among those respondents, 49.1% answered that they ate apple after dinner. Respondents preferred as purchase place fruits store(34.5%), traditional market(22.6%), and big discount store(21.7%), in order. Taste(46.0%) was the most important as purchase criterion. 49.1% of respondents preferred small amount below 2-3kg every one purchase. In preference survey on apples, 80.5% of total subjects responded 'like' or 'very like', and 73.6% of those subjects who favorably responded liked the 'taste' of apples. The preference survey study on apple foods revealed that respondents preferred the most apple juice(M=3.47), fellowed by apple jam(M=3.35) and apple vinegar(M=3.21). On the other hand, apple bab(M=2.29) and apple jook(M=2.23) had the most low preference score. The recognition survey study on apple revealed that respondents knew relatively well the followings: apple is natural food(M=4.25), apple is good for body and apple is good for beauty(M=4.20). Respondents required apple to be fresher(41.0%) and taster(37.4%). 89.4% of respondents expected that consumption of apples would be increased or maintain at the present level.

Optimization of Muffin with Dropwort Powder Using Response Surface Methodology (반응표면분석법을 이용한 미나리 분말 첨가 머핀 제조 조건의 최적화)

  • Park, Geum-Soon;Kim, Ji-Young
    • Journal of the Korean Society of Food Culture
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    • v.29 no.6
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    • pp.623-636
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    • 2014
  • This study was performed to determine the optimal composition of muffins added with dropwort powder, egg and sugar. The experiment was designed based on BBD (Box-behnken design), and evaluation was carried out by means of RSM (response surface methodology), consisting of 13 experimental points with three replicates each for three independent variables dropwort powder, eggs and sugar. Using F-test, height, moisture, 1,1-diphenyl-2picriylhydrazyl (DPPH) radical scavenging activity, L-value, a-value, springiness, cohesiveness, chewiness, brittleness, color, and appearance acceptability were expressed as a linear model, whereas pH, b-value, flavor, taste, and texture were expressed as a quadratic model. After swallow and overall acceptability were expressed as a 2FI model. As dropwort powder content increased, 1,1-diphenyl-2picriylhydrazyl (DPPH) radical scavenging activity increased. Increasing amounts of dropwort powder led to reduction of sensory scores for color, appearance, flavor, taste, and texture quality. The optimum formulation determined by the numerical and graphical methods were similar: dropwort powder 6 g, egg 77 g, and sugar 60 g.

A Case Report of Psychosomatic Disease (발작적(發作的) 탄식(歎息).흉민(胸悶).구고(口苦)를 주소증으로 한 심신증(心身證) 환자 치험 1례)

  • Choi, Geum-Ae;Kim, Woo-Chul;Kim, Kyeong-Su;Kim, Kyeong-Ok
    • Journal of Oriental Neuropsychiatry
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    • v.21 no.3
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    • pp.105-114
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    • 2010
  • Objectives : This case report presents a 77-year-old female patient, who was suffered from fitful sigh, chest discomport and bitter taste diagnosed with psychosomatic disease improved by application of korean traditional treatments. Methods : The patient in this case had been suffered from severe stress by her family. Therefore, she diagnosed heart eum deficiency(心陰虛), heart qi stagnation(心氣鬱滯) and since then she had received herbal treatments. These treatments were successful and reduced the level of symptoms. Results : After treatment, her chief complains that fitful sigh, chest discomport and bitter taste were almost reduced. Conclusions : This result suggests that our korean traditional treatments was effective on psychosomatic disease caused by stress.