• Title/Summary/Keyword: human sensory evaluation

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The Quality Characteristics of Jelly Added with Bokbunja (Rubus coreanus Miquel) (복분자를 첨가한 젤리의 품질특성)

  • Yu, Ok-Kyeong;Kim, Ji-Eun;Cha, Youn-Soo
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.37 no.6
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    • pp.792-797
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    • 2008
  • The purpose of this study was to investigate the effects of adding various amounts of ingredients on the physicochemical and sensory characteristics of Bokbunja-jelly. The proximate composition of Bokbunja-jelly was 19.0% for the moisture and 0.8% for the crude protein. The Hunter L-values of Bokbunja-jelly prepared by adding 10 g RME or 120 g sucrose were higher than that of Bokbunja-jelly prepared by adding 20 g RME or 100 g sucrose. The Hunter b-values of Bokbunja-jelly prepared by adding 20 g RME or 120 g sucrose was higher than that of Bokbunja-jelly prepared by adding 10 g RME or 120 g sucrose. The hardness and chewiness were increased with decreasing Rubus coreanus Miquel extracts. According to the results of the sensory evaluation, no significant differences in flavor, sweetness, hardness, elasticity and overall qualities were found. According to the results of physicochemical properties and sensory evaluation, the optimal recipe for preparation of Bokbunja-jelly was determined to be 240 g water, 120 g sugar, 110 g glucose syrup, 4 g agar, 20 g Rubus coreanus Miquel extracts and 0.3 g Rubus coreanus Miquel flavor.

Fatty Acid Compositions of Fats in Commercial Coffee Creamers and Instant Coffee Mixes and Their Sensory Characteristics (국내 유통되는 커피 크리머와 커피믹스에 함유된 지방의 지방산 조성 및 관능적 특성)

  • Lee, Bom-Ee;Lee, Hee-Jae;Cho, Eun-Ae;Hwang, Keum-Taek
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.41 no.3
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    • pp.362-368
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    • 2012
  • This study examined the fatty acid compositions of the fats extracted from 14 commercial coffee creamers and 11 instant coffee mixes, and evaluated the sensory characteristics of the coffees using different coffee creamers. The fat content in the 14 coffee creamers and 11 coffee mixes was 15~28% and 8~14%, respectively. The fats in 12 coffee creamers consisted of 34~45% lauric, 15~19% myristic and 10~18% palmitic acids. The fats in the other 2 coffee creamers consisted of 43% palmitic, 39% oleic and 10% linoleic acids. The fatty acids of the fats in the 11 coffee mixes were almost all saturated with lauric acid being the most abundant (44~45%). Coconut oil or palm kernel oil might have been used to manufacture the 12 coffee creamers and 11 coffee mixes, which had a higher lauric acid content. Palm oil (PO) might be a fat source for the other 2 coffee creamers. The sensory characteristics of five coffee mixes were evaluated based on their fatty acid compositions. The coffees with the creamers, which had a higher lauric acid content, were significantly more acceptable than those with a higher palmitic acid (p<0.05). The sensory evaluation of the coffees made with the creamers composed of hydrogenated coconut oil (HCO) and PO at different ratios showed that the acceptability increased with increasing HCO content. This suggests that PO may have a negative impact on the sensory characteristics.

Qualify Characteristics of Yackwa according to the region - Focusing on Jeonbuk Province - (제조지역에 따른 약과의 품질 특성 -전북지역을 중심으로-)

  • Cha, Kyung-Ok
    • Korean Journal of Human Ecology
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    • v.9 no.4
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    • pp.75-81
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    • 2006
  • In this study on the recipe for Yakgwa in Jeonbuk province, a survey of the ingredients, the quantity and the recipe for Yakgwa were conducted by an interview with the notable maker of it in 9 regions ; Jeonju, Imshil, Jangsu, Jeongup, Namwon(Samaemyeon & Dukgwamyeon), Wanju, Gochang, Iksan, away from each other. The hardness testing and the sensory evaluation of Yakgwa were carried out to compare with the control group and Jeonbuk Yakgwa. The results of this study are as follows ; 1. Common ingredients of Yakgwa examined in 9 regions were flour, sesame oil or soybean oil, honey or sugar, ginger juice, alcoholic drinks and etc. The quantity of oil (sesame or soybean) per kilogram of flour was as follows between one-half and one cup of oil, between one and three cups of honey or sugar, between one-half and one cup of ginger juice and between one-half and one cup of alcoholic drinks. Making of Yakgwa in Jeonju and Imshil area, knead flour with the liquid ingredients which are mixed together before. In other areas, after sifting the mixed flour with sesame oil, and then knead the remaining with the sifted. 2. The result of the hardness testing of Yakgwa was that it is higher in this order, Iksan, Imshil, the control group, Jeongup, Jeonju. With while the difference of syrup used in each of them, the result of hardness testing in the same order shows that the component of Yakgwa has more great effect on the hardness than a kind of syrup on which the result by using syrup before&after cooking. And in the sensory evaluation, the surface color of Iksan Yakgwa was the most bright of all, and the shininess was of Imshil and the control group, the cracked level, the softness, the sweet taste and the oily taste of Jeonju Yakgwa was better than other Also, the overall preference, though less meaningful, was same result.

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Quality Characteristics of Chungkukjang-Kimchi and Its Acceptability by Elementary School Students (청국장김치의 품질 특성 및 초등학교 급식에서의 수응도 평가)

  • Yang, Eun-Sun;Yang, Hyang-Sook;Kim, Ae-Jung;Rho, Jeong-Ok
    • Journal of the East Asian Society of Dietary Life
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    • v.18 no.4
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    • pp.507-515
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    • 2008
  • This study investigated the standard recipe and changes in the quality characteristics of Chungkukjang-Kimchi (CKK) and evaluated its acceptance by elementary school students. The acceptability of Kimchi among elementary school students was evaluated by monitoring the plate waste rate. Chungkukjang powder was added to the Kimchi recipe at 0, 20, 40, 60% of the total weight of red pepper powder. The pH of the CKK decreased as fermentation proceeded, and the total acidity was $0.24{\sim}0.25%$ in all samples. The salinity of the CKK was 2.32%. The L color value was significantly lower in the treatment groups than in the control group. The b and a color values increased in the beginning, but tended to decrease during fermentation. In the sensory evaluation, there was no significant difference in appearance on preparation day, but there were significant differences on the 6th (p<0.05) and 20th days (p<0.01), with the highest scores observed in the 40% added group. Sourness increased significantly (p<0.001) during fermentation in all samples. There were significant differences (p<0.001) in crispness on the 3rd day among the treatment groups, and it tended to decrease as fermentation progressed. There were significant differences in flavor during the early stage (p<0.001), but there were no differences as fermentation proceeded. Overall acceptability was high in the 40% added group. Evaluation of acceptability by monitoring the plate waste rate in the school dining room showed that acceptability was highest in the 20% added group. Thus, it was concluded that acceptability among elementary school students was highest for CKK from the 20% Chungkukjang group.

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A Study on Basic Pattern Design for a Pregnant Woman (임부용 기본스커트 설계에 관한 연구)

  • Na, Mi-Hyang
    • Korean Journal of Human Ecology
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    • v.6 no.1
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    • pp.55-64
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    • 1997
  • The purpose of this study was to make suitabl skirts pattern for pregnant woman on the basis of their physical characteristics. 9 women who were 3,5,8 and 10 months pregnant were measured using Martin's anthropometric instrument on 12 items and sliding gauge on 4 items. The measures were analyzed statistically. Skirts pattern was developed based on the measurements of the essential items for skirts construction. The sensory evaluation was applied to estimate fittness and comfort in Rim's method skirt pattern. The items which showed a remarkable and significant increase were anterior waist circumference, anterior waist height and abdominal circumference. The anterior part of waist and abdorminal sections projected forward gradually. According to statistical analysis on the questionnaire, all the items showed significant difference between the new and the Rim's method skirts pattern with the new pattern having higher scores.

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Cooking Properties of Rices Produced in Naju (품종별 쌀의 취반 특성(나주에서 재배된 쌀을 중심으로))

  • 문세훈;김정옥;신말식
    • Korean Journal of Human Ecology
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    • v.7 no.1
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    • pp.11-19
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    • 2004
  • Three rice varieties of Nampyong, Dongjin I, Ilmi produced In Naju were examined for cooking properties. The lipid content of Dongjin I and the protein content of Ilmi were higher than those of others. Total amylose contents of three varieties were in range of 16.1$\sim$-18.6% and that of Ilmi were higher than the others. The initial gelatinization temperature by RVA were ranged from 69.8$^\circ$C to 73. 3$^\circ$C. Peak viscosity and breakdown were the highest in Dongjin I but setback was the lowest. Nampyong had the highest value(p

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Quality Characteristics of Cookies fortified with Skate (Raja kenojei) Powder (홍어 분말 첨가 쿠키의 품질 특성 연구)

  • Cho, Hee-Sook;Kim, Kyung-Hee
    • Journal of the Korean Society of Food Culture
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    • v.23 no.6
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    • pp.771-778
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    • 2008
  • This study was conducted to investigate the quality characteristics of cookies prepared using skate powder (0, 1, 3, 5, 7%) as a substitute for flour. The pH of the cookie dough decreased significantly in response to the addition of all levels of skate powder. However, there were no significant differences in the dough values among the test groups. Furthermore, when the spread factor values were compared among groups, they were found to be inversely proportional to the skate powder concentration. In addition, the Hunter's color L, a and b values decreased significantly as the level of skate powder increased. Moreover, the addition of 1-7% skate powder resulted in increased hardness, cohesiveness, springiness, and brittleness when compared to the control. Finally, the results of the sensory evaluation and acceptance test showed that the cookies containing 3% skate powder had the highest scores.

Characteristics of Cooked Rice According to Different Coating Ratiosof Dandelion (Taraxacum officinale) Extracts (민들레 추출액 농도에 따른 민들레 코팅쌀밥의 품질에 관한 연구)

  • Yoo Kyung-Mi;Lee Yeon-Kyung;Kim Sai-Hee;Hwang In-Kyeong;Lee Boo-Yong;Kim Sung-Soo;Hong Hee-Do;Kim Young-Chan
    • Korean journal of food and cookery science
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    • v.21 no.1 s.85
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    • pp.117-123
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    • 2005
  • Washed rice was coated by spraying aqueous dandelion (Taraxacum officinale) extracts at 20, 30, 40 $^{\circ}$Brix and dried at room temperature. The coating procedure was conducted 5 mL/min for 10min. Property changes in the dandelion coated rice and un-coated cooked rice were observed during 2 days of storage. Increasing the coating concentration was associated with lower color values (L, a value) and moisture contents. Sensory and texture properties generally decreased in the cooked rice coated with dandelion more than the control (non-coated rice). But, D-20(20 $^{\circ}$Brix of the dandelion concentration) resulted in better textural properties and sensory scores for hardness and overall acceptability in cooked rice. Compared to the control, the washed rice coated with 20 $^{\circ}$Brix for 0 and 2 days showed better quality in sensory activities, a lower gel consistency and better textural activities. It was concluded that the optimum coating ration of rice and added dandelion extract for cooking were 20 $^{\circ}$Brix and $5\%$ respectively, in proportion to the total weight of raw rice.

Quality Characteristics of Lotus Root Tea added with Gardenia jasminoides Powder and Rubus coreanus Miquel Powder (치자와 복분자분말을 첨가한 연근차의 품질특성)

  • Jo, Suj-Jin;Lee, Ji-Eun;Rho, Jeong-Ok
    • Journal of the Korean Society of Food Culture
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    • v.31 no.6
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    • pp.597-604
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    • 2016
  • This study was performed to investigate the quality characteristics of lotus root tea (LT) prepared with Gardenia jasminoides powder (GLT) and Rubus coreanus Miquel powder (RLT). The proximate compositions, physicochemical properties, mineral contents, and sensory evaluations of samples were measured. GLT sample showed higher contents of crude protein, crude fat, crude ash, and moisture (p<0.001) as well as pH (p<0.001) compared to LT and RLT. In terms of color, lightness (L) and yellowness (b) of GLT were the highest among the samples, whereas redness (a) of GLT was the lowest. The results of mineral analysis showed that the mineral contents of K, Ca, and Fe of LT were the highest, whereas the content of Mg of GLT was the highest. The results of browning color intensity of all samples showed that LT had the lowest. GLT showed higher contents of water soluble solids than LT and RLT. In the sensory evaluation, the scores of color, flavor, aftertaste, feeling of throat, and overall preference of LT and GLT were significantly higher than those of RLT. From the findings, this study suggests that addition of Gardenia jasminoides powder was effective for preparation of lotus root tea in the aspects of consumer acceptability.

Antioxidative Effect and Quality Characteristics of Cookies Made with Sea tangle powder (다시마 분말을 첨가하여 제조한 쿠키의 품질특성과 항산화효과)

  • Cho, Hee-Sook;Park, Bock-Hee;Kim, Kyung-Hee;Kim, Hyeon-A
    • Journal of the Korean Society of Food Culture
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    • v.21 no.5
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    • pp.541-549
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    • 2006
  • The purpose of this study was to investigate the antioxidative effect and quality characteristics of cookies made with Sea tangle powder(STP). The cookies were at $30^{\circ}C$ for 45 days. The 3% STP had higher pH value compared to the other groups and control. As more STP was added, the L-value and b-value decreased, and the a-value increased for the color values. The results of sensory evaluation and acceptance test showed that the cookies with 3% STP was significantly more preferable in overall acceptability than the others. The acid value, peroxide value, and thiobarbituric acid value were lower in cookies with 3% and 6% STP than in those cookies made 9% STP and the control cookies.