• Title/Summary/Keyword: texture evaluation

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Changes in Mineral, Pigment, Texture, Sensory Score and Microflora during Fermentation of Gat(Leaf Mustard)-Kimchi (갓김치 숙성 중의 무기질, 색소, 조직, 관능 및 미생물군의 변화)

  • 박석규;전순실
    • Food Science and Preservation
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    • v.2 no.1
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    • pp.131-138
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    • 1995
  • In order to obtain basic data for the development of Gat-Kimchi, a salted and fermented lear mustard, changes in mineral, pigment, texture, sensory score and microflora during fermentation at 5$\pm$2$^{\circ}C$ were investigated. Changes in mineral, including iron, calcium and potassium were obviously shown and their contents were markedly decreased after 14 days of fermentation. Contents of total chlorophyll and carotenoid were slowly decreased after 6 and 10 days of fermentation, respectively and ratios of chlorophyll a/b were not changed and similar to those of other cruciferous vegetable Kimchi during fermentation. Shear force of Gat-Kimchi in rheometer during fermentation was increased. The sourness and hardness(p<0.05) of Gat-Kimchi after 24 days of fermentation were significant different in sensory evaluation with no significant difference in off-flavor, color and hotness. Compared with other Kimchi, taste of Gat-Kimchi was desirably kept for 54 days of fermentation. Total viable count and lactic acid bcateria(Genus Lactobacillus) observed to be Increased in the range of 18 to 24 days and yeasts to be gradually increased during overall period of fermentation.

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A Study on the Staple Food in Korea -the change of physics and chemistry of rice boiling with cereal- (한국 주식에 관한 연구 -잡곡밥 조리과정중 이화학적 변화-)

  • 김경자
    • Korean journal of food and cookery science
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    • v.1 no.1
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    • pp.40-44
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    • 1985
  • The change of PH, texture, swelling$.$power and protein, fat, calorie composition at cooking rice boiling with various cereal were summarized as follows : 1. The change in pH resulting from the addition of various cereal were much more pronounced in boiling rice with cereal than boiling rice. 2. The volume of boiling rice with cereal was higher that the addition of various cereal. 3. The evaluation of the texture of boiling rice with cereal was the most that rice 70%, barly, bean, red-bean each 10% composition.

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The Quality Characteristics of Rice-cinnamon cakes (Rice-cinnamon cakes의 품질특성)

  • 김영인
    • Korean Journal of Rural Living Science
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    • v.7 no.1
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    • pp.31-37
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    • 1996
  • This experiment was carried out in order to investigate milling methods of rice flours on characteristics of rice-cinnamon cakes. The expansion ratio and cake volume of hydrated rice flour was the better than the non-hydrated rice flours. The rice-cinnamon cake of the hydrated riceflour was generally alike in texture and taste to the cake of wheat flour as the result of Instron and sensory evaluation. The rice - cinnamon cake of the non - hydrated rice flour was generally lower in aircell and texture to the cake of the hydrated rile flour.

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Satisfacion Evaluate of Exterior Using Red Mud (레드머드를 활용한 외장재의 만족도분석)

  • Kang, Hye Ju;Hwang, Byuong Il;Jin, Eun mi;Kang, Suk Pyo
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2017.05a
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    • pp.109-110
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    • 2017
  • In study, we evaluate the texture and satisfaction of building exterior materials using red mud, which is generated as a by product of industrial use, and present an objective indicator by predicting the influence of exterior elements such as material type and roughness in the evaluation of building exterior materials.

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Evaluation of Apple Freshness by Characterizing Surface Texture of Cells (세포 표면 특성을 이용한 사과 신선도 평가)

  • 조용진
    • Journal of Biosystems Engineering
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    • v.22 no.4
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    • pp.433-438
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    • 1997
  • The freshness of apple was evaluated by characterizing the surface texture of flesh cells. The freshness index which was related to the amount of wrinkles on the cell surface was defined to quantify the freshness. Four parameters relevant to the amount of the cell wrinkles were selected and measured using image analysis including wrinkle extraction procedure and Fast Fourier Transform of a wrinkle-extracted image. Out of 4 parameters, three parameters had highly significant correlations with the time elapsed after harvest. But it was concluded that two parameters out of such 3 parameters could be used for description of freshness index.

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Quality Characteristics of Onion with Added French Dressing Composed of Different Oils (기름 종류를 달리한 양파 첨가 프렌치 드레싱의 품질특성)

  • Kim, Yu-Li;Lee, Kyung-Hee
    • Journal of the East Asian Society of Dietary Life
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    • v.21 no.5
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    • pp.683-690
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    • 2011
  • This study was carried out to determine the best mixing ratio of French dressing containing onion juice which was added at with different levels (12, 24, 36, and 48%). The mixing methods of ingredients were evaluated through sensory evaluation and viscosity and color of were measured. Instead of soy bean oil, we also studied various oils(corn oil, grape seed oil, canola oil, and olive oil) for the purpose of determining functional French dressing. The results were as follows; The results of the sensory evaluation showed that the French dressing with 36% added with 36% onion juice was the preferred most in appearance, flavor, and overall preference. Correlation coefficients between overall preference and sensory characteristics of onion added French dressing were higher in the order of taste (r=0.64), flavor (r=0.54), texture (r=0.48), appearance (r=0.41). The quality of French dressing varied greatly depending on the mixing methods of ingredients. The best method for making dressing was mixing 5 mL of oil with the other ingredients at 5 seconds intervals. The results of the sensory evaluation on French dressings with added onion juice containing soybean oil, corn oil, grape seed oil, canola oil, and olive oil, indicated that soybean oil was the most preferable. The appearance and taste of French dressing containing soybean oil were significantly the highest with regard to preference.

Sensory Evaluations of Characteristics in Toha-Jeot Added Cabbage Kimchi during the Fermentation by Koreans and Japanese (토하젓 첨가 배추김치의 숙성 중 한국인과 일본인의 관능적 특성 평가)

  • 박영희;이성숙;정난희
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.30 no.3
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    • pp.432-438
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    • 2001
  • The purpose of this study is to investigate the sensory characteristics of Toha-jeot added cabbage kimchi by Koreans and Japanese. The sensory evaluation was conducted for the following 9 items such as color, savory taste, carbonated taste, sour taste, hot taste, salty taste, off flavor, texture and overall preference. Sensory evaluation of kimchi was tested by Koreans or Japanese whose ages vary from 30 to 50 years old and each group had 25~30 evaluators. Kimchi at different stages of fermentation day 0, 10 and 18th was evaluated. Saltiness of kimchi was 1.5~2.1% through the fermentation period and pH of kimchis was decreased from pH 5.4~5.6 to 4.3~4.4 during the fermentation. The sensory evaluation of Toha-jeot added cabbage kimchi by Koran and Japanese showed the differences in evaluation as the fermentation proceeded. The color, texture and overall preference of Toha-jeot added cabbage kimchi fermentation for 10th days was scored significantly high by Korean group while the score for the savory taste was increased as the fermentation proceeded. The hot taste preference of Toha-jeot added cabbage kimchi fermented 18th days scored significantly high and also increased as the fermentation proceeded by Japanese group. The overall preference of Toha-jeot added cabbage kimchi by Japanese group was higher than that of control cabbage kimchi tested at 10 and 18th days fermentation.

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Sensory and Physical Characteristics of Hwajeun Prepared with Various Kinds of Dipping Syrups (집청액 종류에 따른 화전의 관능적 및 물리적 특성)

  • 장명숙;박정은
    • Korean journal of food and cookery science
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    • v.19 no.5
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    • pp.659-666
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    • 2003
  • The purpose of this study was to standardize the various methods and recipes of Hwajeun (glutinous rice pancake with flower) that appeare in the literature. For this purpose, the effects on sensory and physical characteristics of Hwajeun in various kinds of dipping syrups (S1 : honey, S2 : rice syrup, S3 : com syrup, S4 : sugar syrup and S5 : sugar) during storage for 24hrs were investigated. This experiment consisted of the measurement of water content, color difference meter, texture analyser and sensory evaluation for acceptance (color, flavor, moistness, softness, chewiness, adhesiveness, sweetness and overall acceptability). The moisture contents decreased with increasing storage time, indicating that S1 had a significantly (p<0.01) high value until 12hrs. The colorimetric values of lightness (L), redness (a) and yellowness (b) decreased and the total color difference values ($\Delta$E) increased with increasing storage time. In the two bite compression test, the hardness of S1 and S3 showed significantly (p<0.0001) lower values than other samples. As a result of the sensory evaluation for Hwajeun prepared with various kinds of dipping syrup, S1 and S3 were most preferred in color, flavor, moistness, chewiness, adhesiveness, sweetness and overall acceptability of sensory evaluation.

Effect of Addition of Mung Bean Starch and Sugar on the Textural and Sensory Properties of Dopyun (녹두전분과 설탕의 함량을 달리한 도편(桃片)의 품질특성과 기호도)

  • 박금순;박찬성;박어진
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.27 no.5
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    • pp.897-902
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    • 1998
  • This study was conducted to develop the standard recipe of Dopyun according to the various content of mung bean starch and sugar. The effects of mung bean starch(10%, 15%, 20%) and sugar(20%, 30%) were evaluated on textural and sensory properties of Dopyun through the mechanical properties using texture analizer and sensory evaluation. Color was tested by color and color difference meter. For sensory evaluation, higher content of sugar and lower content of mung been starch(sugar 30%, mungbean starch 10%) showed advantages in acceptance fo taste and overall quality. Mechanical properties of hardness, cohesiveness and chewiness of Dopyun were increased significantly in Dopyun with higher content of mung bean starch and sugar. The values of Hunter color system indicated that "L" and "b" values tended to decrease and "a" value increase, as the mung bean starch and sugar proportion increased. In the analysis of correlation between sensory evaluation and acceptance test, it was found that they were highly related. In view of the above results, it came to the conclusion that Dopyun with the addition of 30% sugar and 10% mung bean starch could give the best result among the groups studied.sult among the groups studied.

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Development of Blueberry Cakes with Addition of Mealworm Powder (Tenebrio molitor Lavare) Using sensory evaluation

  • Ma, Chilsuk;Kim, Youngkyun
    • International journal of advanced smart convergence
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    • v.10 no.3
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    • pp.225-231
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    • 2021
  • In the search for another appealing source of future food to cover the increasing need for nutrients of a growing global population, this study reviewed the potential of insects as human food. This study assessed some common edible insects, but concentrated on mealworms. Insects, especially mealworms, have a similar or higher nutritional value than many conventional food sources. The present study aimed to promote health through the development of blueberry cake by Mealworm Powder (Tenebrio molitor Lavare). The results of Sensory evaluation comparison of Blueberry cake to different levels of mealworm powder. The sensory evaluation showed that sample 3 had the highest color, taste, texture, and overall texture except flavour. Therefore, mealworm blueberry cake made with 60g of mealworm powder showed the best results. The results of analyzing the general components of the Mealworm blueberry cake showed more than two times higher Crude protein and less than half Crude fat compared to control blueberry cake. It is believed that the addition of mealworm powder means that the protein in the cake, a high carbohydrate food, has been strengthened. This is the development of bakery products with both nutritional excellence and symbolism, and it is believed that wheat worm powder is a good food material as a favorite food, not a hateful food, which will improve consumer awareness of edible insects.