• Title/Summary/Keyword: Sensory attribute

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The Study of Value Evaluation of Foods in Urban Adolescents (청소년의 식품에 대한 가치 구조의 분석 연구)

  • Moon, Soo-Jae;Lee, Young-Mee
    • Journal of the Korean Society of Food Culture
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    • v.1 no.2
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    • pp.142-156
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    • 1986
  • The purpose of the present study was to investigate the value evaluation of food in urban Korean adolescents. The conclusions drawn from the analysis of values of foods are as follows: 1. There are five factors drawn from the analysis of values of foods, that is, subjective evaluational factor. Objective factors are social factor, economic factor, quality attribute factor, and freguency of food intake factor. And it has been revealed that there is some relationship between these factors. The subjective evaluational variable depends most strongly on the sensory variable, especially taste, flavor, color and shape of food, described in the order of influence. It also depends on the experiential frequency of intake. 2. With regard to the attitude of evaluation of food, there is a considerable difference between junior high school students and high school students, and between male and female students, This difference can be noticed in almost all the variables dealt with in this study, especially in the subjective evaluational aspect, experiential aspect, and social aspect, A significant difference was found between junior high school students and high school students and between male and female students on both subjective and objective values of foods. Male students valued food which brought about a 'Satiety' more so than female. And consequently, they take such kinds of foods more frequently. More female students than male students and more junior high school students than high school students have a strong conception of the socio-cultural value of foods, that is, the spatial and temporal symbol of foods.

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A Study on Sushi Choice and Consumer Behavior Depending on Food-related Lifestyle (국내 거주 외국인들의 식생활 라이프 스타일에 따른 초밥 선택 속성 및 행동에 관한 연구)

  • Kim, Jung Ha;Park, Jae Young;Lee, Kyung Won;Chung, Hee Chung;Oh, Ji Eun;Cho, Mi Sook
    • Journal of the East Asian Society of Dietary Life
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    • v.23 no.2
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    • pp.119-132
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    • 2013
  • The aim of this study was to identify sushi choices underlying food-related lifestyle and to study the sushi attribute. The Food Choice Questionnaire (FCQ), the most popular tool for lifestyle research, which measures the relative importance of nine factors important in food choice, and food-related lifestyle was administered to 200 Americans (over 20 years of age) residing in Korea. From an analysis of food-related lifestyle through factor analysis, four factors emerged: health, taste, economy, and convenience. The Food Choice Questionnaire (FCQ) structure was verified using factor analysis, and eight factors were found: mood, natural content, health, sensory appeal, convenience, weight control, familiarity and price. These data are important in demonstrating the different motives underlying sushi choice. Moreover, the results suggest that an American's food-related lifestyle is considerably different in consumer behavior and sushi choice. Further research is needed to test our hypotheses.

Quality Characteristics of Low-sodium Oiji (Traditional Korean Cucumber Pickles) based on Addition of Glasswort Powder (함초 분말 첨가에 따른 저나트륨 오이지의 품질특성)

  • Kim, Gumjung;Yang, Jiwon;Lee, Kyunghee
    • Journal of the Korean Society of Food Culture
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    • v.34 no.5
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    • pp.620-628
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    • 2019
  • To investigate Oiji (traditional Korean cucumber pickles) with reduced sodium content based on the use of saline foods as a salt substitute, Oiji was prepared using glasswort powder (Salicornia herbacea L.), and its physicochemical properties and sensory evaluation were examined. The moisture content of Oiji was shown to be higher in those to which glasswort powder had been added compared to the control without addition of glasswort powder, and Oiji with 40% glasswort powder substitute showed the highest pH and lowest acidity, resulting in slow progression of fermentation. The salinity of Oiji among those containing glasswort powder substitute was significantly higher with increasing level of glasswort powder. The sodium content of Oiji was significantly reduced as addition of glasswort powder increased. The L value of Oiji decreased with increased addition of glasswort powder, whereas the a value was highest in the control. The hardness of Oiji was higher in the control than in Oiji containing glasswort powder. Taste acceptance was highest for Oiji with 20% glasswort powder substitute, whereas acceptance of appearance was higher for Oiji with 10% glasswort powder substitute. Flavor and texture acceptance was higher for the control. In the attribute difference test, significant differences were found in brownness, off-flavor, salty taste, and sourness. Based on the findings, 10-20% substitution of salt with glasswort powder did not significantly lower overall acceptance compared to the control while salinity of Oiji was maintained. Therefore, the potential production of low-sodium Oiji has been verified.

Incorporation of Selected Strains of Pediococcus spp. on Quality Characteristics of Dry Fermented Sausage during Fermentation and Ripening

  • Seleshe, Semeneh;Ameer, Ammara;Kang, Suk Nam
    • Food Science of Animal Resources
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    • v.41 no.6
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    • pp.1078-1094
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    • 2021
  • This research investigated the physio-chemical and microbial quality characteristics of dry fermented sausage from selected Pediococcus strains: P. acidiliactici (PE1) and P. pentosaceus (PE2) as compared to commercial starter culture (COS) during fermentation and ripening. Treatments showed no substantial variation (p<0.05) in water activity (aw) values across the study period. PE1 and PE2 treatments exhibited similar (p>0.05) pH values and presented remarkable (p<0.05) lower volatile basic nitrogen (VBN) and thiobarbituric acid reactive (TBARS) content than COS treatment throughout the ripening period. However, the pH values in COS batch were considerably lower than others. PE1 samples presented a significant highest (p<0.05) counts both in lactic acid bacteria (LAB) and total plate count (TPC) than COS and PE2 treatments at 7 days fermentation, and it resulted in a similar and higher TPC count as COS after the ripening period. After the ripening process, treatments are ordered based on LAB counts as follows: COS>PE1>PE2. All batches presented similar redness and yellowness attributes since the 7 days of fermentation and in lightness across the study period. Treatments were similar (p>0.05) in springiness and chewiness traits across the study period and in hardness characteristics in the ripened products. Cohesiveness was higher in PE1 and COS batches. No variation (p>0.05) in aroma and sourness sensory attributes of treatments. The color attribute was highest (p<0.05) in PE1 and PE2 treatments and PE1 had the highest overall acceptability. The overall outstanding merit exhibited by PE1 can be utilized in the commercial production of high-quality dry fermented sausage.

A Study on the Sensory Characteristics of Korean Red Wine (한국산 적포도주의 관능적 특성에 관한 연구 (III))

  • Lee, Jang-Eun;Hong, Hee-Do;Choi, Hee-Don;Shin, Yong-Sub;Won, Yoo-Dong;Kim, Sung-Soo;Koh, Kyung-Hee
    • Korean Journal of Food Science and Technology
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    • v.35 no.5
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    • pp.841-848
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    • 2003
  • The sensory characteristics of red wine Gerbong (G), Campbell (C), Moru (M), Gerbong + Moru (70 : 30, GM), Gerbong + Campbell (70 : 30, GC) and French wine (F, Carbernet Sauvignon, 1998) were evaluated. The preferences of color, flavor, taste and total evaluation were determined by a ranking test, and the organoleptic characteristics were evaluated by a quantitative descriptive analysis (QDA) method. The mean color scores of C, GM, F, GC, M and G were 4.74, 3.94, 4.67, 3.70, 2.65 and 1.47, respectively (p<0.001). The order for the mean score for flavor was GM (4.12) = M (3.94) = C (3.76) = F (3.76) ${\geq}$ GC (3.12)>G (2.29) (p<0.01), and the order for taste was F (4.75) ${\geq}$ C (4.25) ${\geq}$ GM (3.37) = GC (3.50) ${\geq}$ G (2.75) = M (2.37) (p<0.001). The total evaluation of mean scores showed G, M, C, GM, GC and F were 237, 2.44, 4.06, 3.87, 3.64 and 4.81, respectively (p<0.001). Influences of sensory characteristics on the total evaluation, in percentages, were 69.3% for taste, 3.7% for color, and 1.5% for flavor. The influences of taste, color, and flavor in red wine were 17% for sweet, acid, bitter and salty taste, 28.9% for purple and red color, and 14.4% for grape flavor. The attributes of the purple and red colors showed a positive correlation with grape flavor, oak flavor, grape taste, and floral tastes, but a negative correlation with $SO_2$, flavor. The attribute of sweet taste showed a positive correlation with grape flavorand floral flavor, but a negative correlation with bitter and astringency tastes, according to Pearsons correlation analysis (p<0.01).

A Study on the Development of Burdock Gruel (우엉을 첨가한 우엉죽의 개발에 관한 연구)

  • Hong, In-Iy;Choi, Soo-Keun
    • Culinary science and hospitality research
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    • v.20 no.1
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    • pp.18-26
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    • 2014
  • The purpose of this study is to develop value-added functional gruel by adding fresh burdock & burdock powder. For burdock, we put fresh burdock(1.0, 2.0, 3.0, 4.0%) and burdock powder(0.3, 0.6, 0.9, 1.2%) into burdock gruel and get results from mechanical tests and sensory tests. Moisture content of fresh burdock gruel increased with more addition of fresh burdock, while burdock powder gruel had less moisture content as the addition of burdock powder increased. Lightness and pH decreased in both groups as more amount of burdock was added. From the result of an attribute difference test, 4% fresh burdock gruel showed the strongest burdock flavor and astringent taste. Among the burdock powder groups, the gruel added with 1.2% burdock powder scored the highest point in color intensity, graininess, savory taste, astringent taste, thickness and aftertaste. For overall acceptability, the gruel added with 3% fresh burdock scored the highest point and the gruel added with 0.6% burdock powder was the highest among the burdock powder groups. Based on the results of this study, the gruel added with 0.6% burdock powder and the gruel added with 3% fresh burdock were the optimum for their good characteristics and overall acceptability when produced.

Quality Properties of Yogurt Added with Hot Water Concentrates from Allium hookeri Root (삼채 뿌리 열수 농축물을 첨가한 발효유의 품질특성)

  • Jun, Hyun-Il;Park, Seon-Yeong;Jeong, Do-Yeon;Song, Geun-Seoup;Kim, Young-Soo
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.43 no.9
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    • pp.1415-1422
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    • 2014
  • Hot water extraction concentrate was prepared from Alliun hookeri root (AHR) to evaluate its applicability to yogurt. The highest antioxidant activity of hot water concentrates was obtained under extraction conditions of 4 hr at $95^{\circ}C$. Antioxidant activities measured by DPPH radical assay, ABTS radical cation assay, reducing power, and cheating activity were highly correlated with total phenolic (89.51 mg/g) and total flavonoid (52.71 mg/g) contents, with R values of 0.94 and 0.96, respectively. Yogurt was fermented with a commercial lactic acid bacteria mixed strain (Yo-mix$^{TM}$ 305) for 10 hr at $42^{\circ}C$ after addition of 0~10% (w/w) hot water concentrates from AHR to yogurt base. As fermentation proceeded, pH and $^{\circ}Brix$ of yogurt decreased from 6.57~6.60 to 4.34~4.51 and from 8.10~8.90% to 4.60~5.25%, respectively, whereas titrate acidity, viscosity, and viable cell numbers increased from 0.22~0.23% to 1.01~1.10%, from $0mPa{\cdot}s$ to $202.55{\sim}290.50mPa{\cdot}s$, and from 6.40~6.80 log CFU/mL to 8.60~9.20 log CFU/mL, respectively. There was no significant difference in any sensory attribute between the control and 2.5% addition group, suggesting that 2.5% hot water concentrate from AHR could be used to manufacture yogurt.

Effect of Pleurotus eryngii and Meat Particle Size on Sausage Quality (새송이버섯과 원료육의 입자 차이가 소시지의 품질 특성에 미치는 영향)

  • Jin, Sang-Keun;Kim, Il-Suk;Kim, Dong-Hoon;Jeong, Ki-Jong;Moon, Sung-Sil
    • Food Science of Animal Resources
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    • v.26 no.3
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    • pp.343-348
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    • 2006
  • The effect of Pleurotus eryngii and meat particle size on properties of sausage quality was investigated. Pleurotus eryngii and meat were processed and combined in the following three ways: T1 (minced Pleurotus eryngii+emulsified meat), T2 (chopped Pleurotus eryngii+emulsified meat) and T3 (chopped Pleurotus eryngii+chopped meat). The pH values of sausages showed T1 to be significantly higher (p<0.05) than T2 and T3. The shear force values showed no significant difference between treatments. T2 and T3 had significantly higher hardness values (p<0.05) than T1. With regard to color, the lightness and whiteness of sausage were significantly higher (p<0.05) for T1 and T2 than for T3. No significant differences between treatments were found regarding redness and yellowness. Panels rated T2 and T3 significantly higher (p<0.05) for aroma and flavor than T1. T2 was rated significantly juicier (p<0.05) than T1, T2 and T3 were rated significantly higher (p<0.05) for overall acceptability than T1.

Quality of Commercial Broiler Breast Meat Retailed in Korea (국내산 시판 닭 가슴살의 품질 특성)

  • Yang, Inyong;Im, Pureum;Kang, Jinsu;Kwak, Hansub;Jeong, Yoonhwa;Kim, Misook;Lee, Youngseung
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.44 no.11
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    • pp.1693-1699
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    • 2015
  • Overall quality of six kinds of commercial broiler breast fillets (A~F) retailed in Korea were examined, including proximate composition analysis, shape profile analysis, pH, color, tenderness, cooking loss, descriptive analysis, and consumer testing. A total of 120 breast meat fillets were purchased at a local market. Overall quality of broiler breast meat commercially available in Korea was found to vary significantly, indicating a broad range of product quality in the marketplace. Moisture content of meat ranged from 74.4 to 76.4%, whereas protein, fat, and ash contents were 21.8~25.2, 0.2~0.8, and 1.07~1.16%, respectively. The pH ranged from 6.2 to 6.4, whereas color values ($L^*$, $a^*$, and $b^*$) were 52.2~57.2, -3.5~0.5, and 8.3~13.6, respectively, among all products tested. Approximately 9% variation in cooking loss was detected depending on the products evaluated, whereas shapes (height, width, and length) of meat were also significantly different (15% variation on average). Product F was proven to be the least tender and least liked by consumers, implying that tenderness is a key attribute determining consumer acceptability of broiler breast meat.

Effects of Red Peppers on the Its Pungency and Color during Kimchi Fermentation (고춧가루가 발효중 김치의 매운맛과 색도에 미치는 영향)

  • 구경형;박재복;박완수
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.33 no.6
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    • pp.1034-1042
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    • 2004
  • This study was carried out to investigate preparation of reconstructed red peppers, effects of pungency and redness of red peppers on the Kimchi quality using central composite design and response surfaces methodology. Capsaicinoids and ASTA (American Spice Trading Association) value put in X$_1$, X$_2$ of independent variable. The result of response surface regression analysis of reconstructed red peppers, correlation coefficient ($R^2$) of overall pungency intensity, persistence and degree of redness was 0.935, 0.935 and 0.821, respectively. After it was made Kimchi samples with reconstructed red peppers, it was examined pH, titratable acidity and lactic acid bacteria of its during fermentation. In the initial fermentation period of Kimchi, it showed pH of 5.46∼5.78, titratable acidity of 0.27∼0.31%, salt content of 2.26∼2.48% and lactic acid bacteria of 4.05${\times}$10$^{5}$ ∼6.23${\times}$10$^{5}$ , respectively. And it showed traditional fermentation pattern in the pH, titratable acidity and microbes of the middle (appropriate fermentation) and last (excessive) fermentation period. While capsaicinoids content in the Kimchi decreased a little according to extend fermentation period, ASTA value showed low correlation reconstructed red pepper and fermentation period. Also, it was analyzed correlation coefficient ($R^2$) of independent variables (capsaicinoids, X$_1$; ASTA value, X$_2$) between sensory attribute in the Kimchi during fermentation. The result of regression analysis, $R^2$ in the overall pungency intensity, persistence and degree of redness showed 0.515, 0.675, 0.784, respectively.