• Title/Summary/Keyword: sensory evaluation

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Effect of Chlorella Growth Factor on Quality of Bread (Chlorella growth factor 첨가가 식빵의 품질 특성에 미치는 영향)

  • Park, Shin-In
    • Journal of the Korean Society of Food Culture
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    • v.18 no.4
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    • pp.356-364
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    • 2003
  • The purpose of this study was to evaluate quality characteristics of the bread added with chlorella growth factor(CGF). The bread was manufactured by adding 0.5%, 1.0%, 1.5% or 2.0% of CGF(w/w) to wheat flour. The bread volume was increased from 1,755mL to 1,840mL as CGF contents increased from 0% to 1.0%. The lightness(L values)and the redness(a values) decreased with increasing CGF contents, but the yellowness(b values) increased with increasing CGF contents. Textural characteristics of the bread were influenced by adding the CGF. The breads containing CGF showed a decrease in hardness, springiness, gumminess and chewiness. In sensory evaluation, sensory scores decreased with increasing CGF contents for color. On the other hand, the highest sensory scores for grain, flavor, taste, softness, chewiness, aftertaste and overall acceptability were obtained, when CGF content was 1.0%. In conclusion, the bread with 1.0% CGF was the best quality in textural and sensory evaluation.

Sensory and textural characteristics of wageobyung using varied levels of lettuce and different amount of sugars and water (와거병의 재료배합비에 따른 관능적ㆍ텍스쳐 특성)

  • 이효지;손희선
    • Korean journal of food and cookery science
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    • v.19 no.2
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    • pp.181-187
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    • 2003
  • The objective of this study was to investigate by a sensory evaluation and mechanical examination the sensory and quality characteristics of wageobyune containing different ratios of ingredients such as lettuce (50%, 60% and 70%), sugar and water. The results of the sensory evaluation showed that wageobyung containing 50% lettuce had higher scores in the overall acceptability, color, flavor and chewiness preference. In the textural analysis of wageobyung, the springiness, cohesiveness and hardness were the highest and the chewiness, gumminess and adhesiveness were the highest in the 70% added samples. Increasing the lettuce content decreased the hunter's color L-value of wageobyung. The redness and yellowness of wageobyung were increased as more lettuce was added. The moisture content of wageobyung was higher in the samples containing 70% lettuce than those containing 50%.

Physicochemical Properties and Sensory Evaluation for Grading of Satsuma Mandarin Produced in Cheju (품질규격화를 위한 온주밀감의 물리화학적 및 관능적 특성평가)

  • 고정삼;고경수;임자훈
    • Food Science and Preservation
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    • v.7 no.1
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    • pp.44-50
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    • 2000
  • Physicochemical properties and sensory evaluation of Satsuma mandarin produced in Cheju were investigated . Fruit index(width/Length), soluble solids and acid content of Citrus unshiu marc. var. miyagawa(miyagawa) and C. unshiu marc. var.(okitsu) harvested at 1st December were 1.16 and 1.23, 12.12 and 12.01, 0.97 and 1.09, respectively. and the fruit of miyagawa was showed somewhat round in shape, compared to ikitsu. the taste of miyagawa seemed to be better than okitsu. However, compared to miyagawa, peel thickness was thinner, flesh ratio was higher, and firmness was higher as 0.502kg-force in kitsu. Nevertheless there were some differences among panelist groups in sensory evaluation , middle size of citrus fruits were favorable to most panelists, but except very small or very large size of fruits, there were not so much differences in okitsu. The panelists referred to somewhat flat-shaped fruits from that sensory evaluation score was increased to 1.3 in fruit index. nevertheless there were not so much differences in full-colored fruits, the citrus peel color of reddish yellow was more favorable than greenish or pale yellow color. the score was increased more linearly according to citrusfruit produced in optimum ciltivation area, and was prefered to thinner in peel thickness , Correlation between soluble solids, acid content , Brix/acid ratio and flesh ratio with sensory evaluation score were not showed significantly, it was different to with citrus juice. This data obtained in this experiments are supposed to be applied to the quality evaluation of Satsuma mandarin produced in Cheju .

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Effect of Sensory Integration Therapy Combined with Eye Tracker on Sensory Processing and Visual Perception of Children with Developmental Disabilities (아이트래커를 병행한 감각통합치료가 발달장애아동의 감각처리 및 시지각에 미치는 영향)

  • Kwon, So-Hyun;Ahn, Si-Nae
    • The Journal of Korean Academy of Sensory Integration
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    • v.21 no.3
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    • pp.39-53
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    • 2023
  • Objective : The purpose was the effect of sensory integration therapy combined with an eye tracker on the sensory processing and visual perception of children with developmental disabilities. Methods : It was a single-subject study with a multiple baseline design between subjects, and the intervention applied sensory integration therapy combined with an eye tracker. Visual-motor speed and saccadic eye movements were assessed at each session of baseline and intervention periods. As pre- and post-evaluation, sensory profile, Korean-Developmental Test of Visual Perception and Trail Making Test were conducted. The results of each session evaluation and pre- and post-evaluation researched the effectiveness of the intervention through visual analysis and trend line analysis. Results : As a result of the evaluation for each session, the slope of the trend line for all children in visual-motor speed and saccadic eye movement increased sharply during the intervention compared to the baseline. As a result of the pre- and post-evaluation, the sensory processing of movement, body position, and visual changed from more than that of peers to a level similar to that of peers. In visual perception, all children's ability of Visual Closure increased. As a result of Trail Making Test conducted to confirm the improvement of children's visual tracking and visual-motor abilities, all children showed a decrease in performance time after the test compared to before. Conclusion : It was confirmed that sensory integration therapy combined with an eye tracker for developmental disabilities has effect on sensory processing and visual perception. It is expected to play an important role clinically as it can stimulate children's interest and motivation in line with recent technological improvements and the spread of smart devices.

A Comparative Study of the Flat Pattern with the Draping Pattern for the Slacks Pattern of Obesity Women (비만체형의 슬랙스 원형설계를 위한 평면재단과 입체재단의 비교 연구)

  • Lee, Young-Ju
    • Korean Journal of Human Ecology
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    • v.8 no.2
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    • pp.289-299
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    • 1999
  • The purpose of this study was to develop slacks pattern for obesity women through comparing the flat pattern with the draping pattern. The results were as follows: 1. In the result of the comparative investigation on pattern and sensory evaluation, it was found that the draping pattern had better comfort and appearance. Especially, as the lower part of the body is more obese and the expansion ratio of the body is higher, the draping pattern was superior to the flat pattern in the sensory evaluation. 2. In the result of sensory evaluation, it was found that the proper ease of total crotch length was $2{\sim}3%$ of actual total crotch length.

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Replacement of Sucrose with Other Sweetener in Sponge Cakes (대체 감미료를 사용한 Sponge Cake의 특성)

  • Choi, Young-Jin;Kim, Kwang-Ok
    • Korean journal of food and cookery science
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    • v.6 no.2
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    • pp.59-66
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    • 1990
  • The characteristics of sponge cakes containing sucrose or other sweeteners for diabetes mellitus patients were investigated through physical measurement and sensory evaluation. The results are as follows: The physical properties of cake batters and cakes with sweeteners were different from each other in viscosity, specific gravity, standing height, firmness, and springiness. from the result of sensory evaluation, it was shown that cakes containing sorbitol and fructose had high quality even though they were not as good as cake with sucrose. However, cakes with saccarine and stevioside showed much difference compared with cake with sucrose. The characteristics of sponge cake with combined sweeteners (sorbitol plus stevioside) were compairable to those of sucrose cake. There was little difference in specific gravity. The result of sensory evaluation indicated the combined use of both sweetenes could produce bette cakes than either stevioside or sorbitol. Practical utilization of this cake would be provided under the sensory evaluation on these cakes by diabetes mellitus patients.

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Improvement of Reliability in the Sensory Evaluation for Home Economics Research (가정학 연구에서 활용되는 관능검사에 대한 신뢰도 평가방법에 관한 연구)

  • 위은하;박정수
    • Korean Journal of Human Ecology
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    • v.3 no.2
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    • pp.90-100
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    • 2000
  • Statistical reliability in the sensory evaluation measures the agreement of judgements for several observers. Kendall's coefficient of concordance for multiple rankings. and coefficient of consistence and coefficient of agreement for paired comparisons are frequently used as the standard reliability measures. The main idea and the computational formula of these coefficients in various situations are explained in detail with some real (cloth designing) examples. Moreover a user-friendly computer program called as MultPair is introduced. We expect that this expository paper and the computer program give a practical help to the researchers who use the sensory evaluation techniques.

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Quality Characteristics of Salku-Pyun with Various Starches (전분 종류를 달리한 살구편의 품질 특성)

  • 박금순;권진희;허성미
    • Journal of the East Asian Society of Dietary Life
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    • v.9 no.4
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    • pp.452-460
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    • 1999
  • This study was conducted in order to investigate the quality characteristics of Salku Pyun which was made by using mungbean, potato, sweet potato and corn starches. The pH of salku juice was 3.45 to 3.50 and the brix of that was 7.0%. The water content and water activity of salku pyun with potato starch was highest. The result of sensory evaluation showed that appearance, flavor, overall quality were highest in the Salku Pyun made with potato starch while texture, taste were highest in the Salku Pyun made with mungbean starch. Mechanical properties of salku pyun with mungbean starch was significantly higher in adhesiveness, hardness, chewiness. Texture of sensory evaluation were positively correlated with springiness, hardness, and chewiness of mechanical measurement. The factors which affect the overall quality on sensory evaluation were texture quality, taste quality, hardness, color and springiness.

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Harmonic Noise Evaluation Method for Home Appliance based on Sensory Evaluation (소비자 감성 평가에 의한 고조파 소음의 평가 방법)

  • Lee, Jin-Kyung;Jeoung, Jeoung-Kyo;Lee, Jea-Won;Joo, Jae-Man
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2005.11a
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    • pp.439-442
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    • 2005
  • Generally, noise from a home appliance has been measured by overall sound pressure level or sound power level, dB. Customers evaluation, however, of this noise should be depend on the only overall level but also the sensory feeling, annoyance, unpleasure and so on. Moreover, in this sensory evaluation, irregular, time-varying and uneven sounds which are difficult to describe itself by overall level are more affectable. Unfortunately however the formal evaluation method for this kinds of noise is not determined yet. In this research, the evaluation method for harmonic noise, which is a major noise from home appliance and one of the unmeasurable sounds by overall level, is proposed to evaluate its acceptability based on the consumer's sense of hearing. The proposed approach could be applied to the other sound, which acoustical characteristics are similar to the tonal noise.

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Evaluation of Menu Quality Mangement in Business & Industry Contract Foodservice on Customer's Viewpoint (사업체 위탁 급식소에서 제공되는 메뉴에 대한 고객 측면에서의 품질 관리 평가)

  • 이해영
    • Journal of Nutrition and Health
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    • v.32 no.8
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    • pp.967-973
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    • 1999
  • The purpose of this study was to analyze sensory evaluation, to assess visual serving size and plate waste estimates of daily menu, and the identify customer expectation, perception and satisfaction. Questionnaires of sensory evaluation, serving size and were waste were developed and hand-delivered to 2,520 people. A total of 2,255 questionnaires were usable: a 89.5% response rate. Customer satisfaction questionnaires were handed out to 700 customers: (100 each at seven operations). A total of 551 were returned completed (78.7%). The data was analyzed using the SAS package program for Descriptive Analysis, t-test and ANOVA. The result of sensory evaluation showed that 'taste' was 3.20, 'freshness' 3.17, 'temperature' 3.25, 'texture' 3.15, 'appearance' 3.12, 'overall evaluation' 3.21, so these were little higher than 「normal」, that is 3.0. There was positive correlation among 'taste', 'freshness', 'temperature', 'texture', 'appearance' and 'overall evaluation'(p<.001). Serving size score was 2.97 and plate waste was 4.87, thus plate waste percentage was about 22-33%. As the result of customer expectation, perception and satisfaction of menu quality, characteristics. Customer satisfaction was defined as the difference expectation and perception and customer perceptions in theis survey were lower than expectation, thus this result implied customers dissatisfied in all menu quality characteristics. IPA analysis showed that 'diversity of menu selection' and 'menu price' was included in A area 'Focus here'.

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