• Title/Summary/Keyword: 관능검사

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Casein 가수분해물의 ACE 저해활성 및 유제품에서의 적용에 관한 연구

  • Choe, Seung-Ho;Yang, Hui-Jin;Lee, Su-Won
    • Proceedings of the Korean Society for Food Science of Animal Resources Conference
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    • 2006.05a
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    • pp.250-252
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    • 2006
  • Casein을 인공 소화관 내의 조건으로 처리한 가수분해물의 ACE 저해활성 측정 및 이를 유제품에 적용하기 위한 기초자료 수집을 위해 관능검사를 실시하였다. Casein을 인공위액과 인공장액으로 각각 단독으로 처리했을 때의 ACE 저해 활성보다는 인공 위액과 인공 장액의 연속처리를 받은 가수분해 분해물의 ACE저해 활성이 더 높게 나타났다. 또한 가수분해물의 관능검사를 실시한 결과에서는 백색 시유에는 0.3% 정도의 첨가가 적당하였으며, 초코우유나 커피우유에 첨가할 경우에는 0.5% 정도까지 첨가하여도 맛에 크게 변화를 주지 않았다.

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Studies on Cnidium officinale As Natural Spices (천궁의 향신료로서의 이용 연구)

  • 이지혜;정미숙;이미순
    • Korean journal of food and cookery science
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    • v.18 no.1
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    • pp.13-19
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    • 2002
  • This study was performed to develop natural spices using Cheongung (Cnidium officinale) which is one of the Korean medicinal plants, Cnidium of officinale is a perennial plant of the Umbelliferae family and is widely distributed in Korea. The overall acceptances of flavor and color, and the masking effects on meaty and fishy flavor of Cnidium officinale were investigated by sensory evaluation. The overall acceptances of fresh Cnidium officinale were the highest, followed by freeze dried and hot air dried samples. The meaty and fishy flavor of cooked pork and fish were significantly reduced by the addition of fresh, hot air dried and freeze dried Cnidium officinale. Cnidium officinale showed similar or higher masking effects on meaty and fishy flavor compared with black pepper.

Analyses of Flavor Qualities of Vegetable Oils by Gas Chromatography (가스크로마토그래피에 의한 식물성 기름의 향미품질의 분석)

  • Yoon, Suk-Hoo;Kim, Jong-Goon;Min, David B.
    • Korean Journal of Food Science and Technology
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    • v.17 no.5
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    • pp.355-360
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    • 1985
  • Soybean, hydrogenated soybean and corn oils, which were exposed to fluorescent light for different periods of time, were evaluated for sensory qualities by subjective sensory evaluation and instrumental gas chromatographic analysis. Sensory evaluation was conducted in 8 laboratories using a 10-point hedonic scale with a total of 95 panel members. The correlation coefficients between sensory scores and predicted sensory scores by gas chromatographic analysis for the 8 laboratories varied from 0.10 to 0.99. However, most laboratories had better than 0.90, which was considered excellent. The correlation coefficients between sensory scores of the 95 panel members and predicted sensory scores using the amount of 2. 4-decadienal isomers in oil determined by a gas chromatographic method for soybean, hydrogenated soybean, and corn oils, were r=0.96, r=0.97, and r=0.97, respectively. The correlation study suggests that it is possible to obtain realistic results of oil flavor qualities from the instrumental evaluation by combining improved gas chromatographic analysis, sensory evaluation, and statistical analysis for practical purposes.

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Influence of Dietary Sea Urchin Shell Powder on Physico-Chemical Properties of Chicken Meat (성게 껍질 분말의 급여가 계육의 이화학적 특성에 미치는 영향)

  • Kim Y. J.
    • Korean Journal of Poultry Science
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    • v.32 no.1
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    • pp.55-60
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    • 2005
  • The experiment was conducted to study the effect of sea urchin shell powder (SUSD) on the sensory evaluation, meat color, fatty acid and amino acid contents of chicken meat. One hundred sixty broilers were fed diets for five weeks containing 0, 1, 3 and $5\%$ of sea urchin shell powder. The shear forces of the treatment groups were higher than the control uoup and the water holding capacity (WHC) was higher in the control group (P<0.05). The heating loss and pH were not significantly different between control and treatment groups (P<0.05). The hardness, juiciness and flavor evaluated by sensory evaluation were improved by treatments, especially in T2 (P<0.05). The meat color of the treatments group showed redder and darker than that of the control group owing to lower L$\ast$ and higher a$\ast$ value. Among fatty acids, oleic acid contents of the treatment groups were higher than that of the control group. The treatment groups showed a significantly higher total amino acid content (P<0.05) compared to the control group. The results of this experiment indicated that dietary SUSP tended to improve the sensory evaluation.

The Quality Characteristics of Cream Soup Prepared with Mulberry Leaf Powder (뽕잎 분말 첨가 크림수프의 품질 특성)

  • Park, So-Hee;Lee, Jong-Ho
    • Korean journal of food and cookery science
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    • v.23 no.5
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    • pp.601-608
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    • 2007
  • In this study, the physicochemical and sensory characteristics of cream soups prepared with various levels of mulbery leaf powder were investigated. The pH, L-value, and viscosity of the cream soups decreased as the mulbery leaf powder content increased. The a-value -1.91 of the control was significantly higher than the other samples. The b-value of the sample with a mulbery leaf powder to flour ratio of 4:6 was highest at 38.59. Results of the descriptive tests showed that darkness, green aroma, bitter taste, and thickness had increased significantly, and savory flavor, greasy taste, floury taste, and softness decreased significantly as the content of mulbery leaf powder increased. A consumer acceptability test for sensory properties indicated that the mulbery leaf powder to flour ratio of 1:9 had the highest flavor and overall acceptability. Also, overall acceptability had positive correlations with savory aroma, savory flavor and softness, but had negative correlations with green aroma and thickness.

Quality Evaluation of Commercial Salted and Fermented Seafoods (시판젓갈류의 품질평가 방법에 관한 연구)

  • Lee, Kyong-Haeng;Kim, Jae-Hun;Cha, Bo-Sook;Kim, Jung-Ok;Byun, Myung-Woo
    • Korean Journal of Food Science and Technology
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    • v.31 no.6
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    • pp.1427-1433
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    • 1999
  • The Microbiological, chemical and sensory analyses were carried to evaluate the quality of commercial salted and fermented seafoods and to establish a standardization. The results showed that amino nitrogen(AN) and volatile basic nitrogen(VBN) contents were appropriate in evaluating the quality of shrimp jeotkal. In the range of $150{\sim}300\;mg%\;and\;25{\sim}70\;mg%$, AN and VBN contents were highly correlated to sensory scores, respectively. In the case of squid jeotkal, pH and VBN contents were appropriate to evaluate quality. The coefficients of the correlation between pH and sensory evaluation was 0.84 and the sensory acceptability was high and above pH 6.0. In addition, the coefficients of the correlation between VBN contents and sensory evaluation was 0.95, and the sensory acceptability was high but below 30 mg%. In the case of shell-fish jeotkal, the coefficient of the correlation between VBN content and sensory evaluation was 0.94, and sensory acceptability was high but below 40 mg%.

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Studies on Sensory Evaluation -[Part III] Pair Comparison with Standard- (관능검사(官能檢査)에 관(關)한 연구(硏究) -[제3보(第3報)] 표준시료대(標準試料對) 1대비교법(對比較法)에 대하여-)

  • Hong, Jin
    • Applied Biological Chemistry
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    • v.20 no.3
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    • pp.279-284
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    • 1977
  • Like that mentioned in the 2nd report, because of panel's sense of psychological and physiological responsibility caused by multi-samples, great errors in experimental results are expected. So as to cut down these errors, the new method called "Pair Comparision with Standard" that reduces test frequency and is superior in detecting power is designed, and its mathematical model is proposed. This paper suggests that this method can be used for screening test that, first of all, selects 4-5 of multi-samples and the most efficient sensory evaluation method in laboratorial quality study is that, after screening by this method, Trio Paired Comparison for the final justification is applicated.

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찹쌀첨가량에 따른 백편의 조직감 특성의 변화

  • 이윤경;이효지
    • Proceedings of the Korean Society of Postharvest Science and Technology of Agricultural Products Conference
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    • 2003.10a
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    • pp.218.3-219
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    • 2003
  • 백편을 만들 때 멥쌀가루 100에 찹쌀가루를 총중량의 0%, 5%, 10%, 15%, 20%, 25%, 30% 첨가하고 저장시간 0시간, 24시간, 48시간, 72시간 저장한 후 (4$^{\circ}C$에서) reheating 한 백편의 기호성과 조직감(Texture)에 어떠한 영향을 끼치는 가를 관능검사와 기계적 검사에 의해 측정한 결과를 다음과 같이 요약할 수 있다 1. 관능검사 결과 백편의 Color 는 찹쌀의 첨가량이 증가할수록 누런색이 짙어졌으며, 24, 48, 72 시간 저장한 후 reheating 한 백편도 누런색이 짙어지는 경향을 나타냈다. Coarseness 는 찹쌀의 첨가량이 증가할수록 증가하는 경향이었으나 저장전의 백편은 유의적인 경향을 나타내지 않았다. 찹쌀의 첨가량이 증가할수록 Softness, Dryness, crumblyness는 감소경향을 나타냈으며 24, 48, 72 시간을 저장한 후 reheating 한 백편도 유의적인 감소경향을 나타냈다. 외관의 기호도는 찹쌀의 첨가율이 5% 인 백편을 가장 좋아했고, 조직감 및 종합적인 기호도는 찹쌀의 첨가율이 10~20%인 백편을 좋아했다. 2. Rhemeter에 의한 백편의 Texture는 찹쌀의 첨가량이 증가할수록 Compression force, gumminess, Chewiness가 증가하는 경향을 나타냈다. 24, 48, 72 시간 저장한 후 reheating 한 백편은 저장전보다 점점 감소경향을 나타냈다가 72시간 저장한 후 reheating 하면 다시 증가경향을 나타냈다. Work ratio 및 Recovered height는 찹쌀의 첨가량과 저장시간의 변화에 크게 영향을 미치지 않았다. Recovered 하지 않고 0, 24, 48, 72 시간 저장한 백편의 Compressing force는 찹쌀의 첨가량이 증가할수록 증가경향이 컸고 저장시간이 경과함에 따라 Compression force가 증가하였는데 특히 24시간 저장하는 동안 급격히 증가하였다. 3. 찹쌀 첨가량이 증가할수록 수분함량은 증가하였고, 저장시간이 경과함에 따라 수분함량은 감소경향을 나타냈으나 24시간 저장한 후 reheating 한 백편만이 수분함량의 증가경향을 나타내었다. 4. qoruvs의 Softness 는 Compression force 및 Work ratio 와 유의적인 상관관계를 나타내었으며, Dryness 와 Crumblyness 는 Work ratio와 유의적인 상관관계를 나타내고 있어 백편의 조직감은 Compression force 와 Work ratio로 대치할 수 있을 것이라고 사료된다. 수분함량은 기계적 검사보다 관능검사와 더욱 높은 상관관계를 나타냈다.

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