• Title/Summary/Keyword: texture sensory evaluation

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Effects of Resistant Starches on the Characteristics of Sponge Cakes (저항전분을 첨가한 스폰지 케이크의 특성)

  • 김명희;김정옥;신말식
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.30 no.4
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    • pp.623-629
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    • 2001
  • This study was investigated the quality characteristics of sponge cakes which were prepared b replacing 30% of flour with raw starch and resistant starches, such as, 4 cycled autoclaved-cooled RS 3 maize starch(RS 3), cross-linked RS 4 maize starch (RS 4) was superior to control cake( 100% flour cake). Addition of starches except RS 3 made crust and crumb color lighter and decreased hardness. Especially, cake containing RS 4 had the softest texture. For the adhesiveness and cohesiveness, cake containing RS 4 showed the least changes during 5 storage days. In DSC measurement, cakes containing RS 4 and ARS 4 showed high enthalpy in despite of low hardness. Sensory evaluation showed that cakes containing RS 4 and ARS 4 were significantly moist and soft compared to others. Overall acceptability of cakes containing starch, RS 4 and ARS 4 were evaluated excellent. Therefore, it can be suggested that RS 4 and ARS 4 can be added to the sponge cake for the quality improvement and functional element.

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Effect of Processing Methods on Phisico-Chemical Properties of Instant Rice (제법(製法)에따른 즉석미반(米飯)의 이화학적(理化學的) 성상(性狀))

  • Kim, Dong Woo;Cho, Kwang Yun;Bae, Jung Surl
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.12 no.3
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    • pp.230-235
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    • 1983
  • Physicochemical properties of instant rice prepared by hot-air drying, alcohol dehydration and freeze-hot air drying were studied. Freeze-hot air drying rice showed the fastest rehydration rate as well as the most desirable textural characteristics. Sensory evaluation suggested that the freeze-hot air drying rice also had more desirable taste, flavor and texture. However, color was more desirable in alcohol dehydrated rice.

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Quality Characteristics and Antioxidant Activities of Noodles added with Spergularia marina L. Griseb Powder (세발나물 분말 첨가 국수의 품질 특성 및 항산화 활성)

  • Chang, Hyesun;Kim, Minseon;Kim, Minzy;Lee, Jisuk;Kim, Yaeboon;Sim, Ki Hyeon
    • Journal of the East Asian Society of Dietary Life
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    • v.27 no.1
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    • pp.50-60
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    • 2017
  • This study evaluated the quality characteristics and antioxidant activities of Spergularia marina L. Griseb powder from halophyte plants added to noodles at ratios of 0%, 0.5%, 1.0%, 1.5%, and 2.0% in order to examine its applicability as a substitute for salt. For quality characteristics of noodles with Spergularia marina L. Griseb powder, pH increased (p<0.05) and salinity decreased (p<0.01) with higher added Spergularia marina L. Griseb powder content. Water absorption ratio decreased (p<0.01) while turbidity decreased (p<0.001) with greater addition of Spergularia marina L. Griseb powder. However, volume expansion ratio increased with greater addition of Spergularia marina L. Griseb powder, but there was no significant difference. For chromaticity, L value and a value decreased (p<0.001) while b value increased (p<0.001) with greater addition of Spergularia marina L. Griseb powder. For texture, hardness (p<0.001), gumminess (p<0.001), and cohesiveness (p<0.01) increased with greater amount of added Spergularia marina L. Griseb powder; however, there were no significant differences in adhesiveness, springiness, and chewiness according to the amount of added Spergularia marina L. Griseb powder. In the sensory evaluation, for color, the score was 5.55 points when 1.5% Spergularia marina L. Griseb powder was added, which was the best preference (p<0.001); for flavor, preference was best (5.64 points) when 2.0% Spergularia marina L. Griseb powder was added; for taste, preference was best (5.36 points) (p<0.001) when 2.0% Spergularia marina L. Griseb powder was added; for overall preference (overall quality) the score was 5.55 points when 1.0% Spergularia marina L. Griseb powder was added, which was the best preference (p<0.001). For antioxidant activities, antioxidant activities including total phenol content, total flavonoid content, and DPPH free radical scavenging activity increased (p<0.001) with the amount of added Spergularia marina L. Griseb powder. As a result of the above research, preference was the highest and quality was excellent overall when 1.0% Spergularia marina L. Griseb powder was added. Thus, addition of 1.0% Spergularia marina L. Griseb instead of salt would be desirable.

Fermentation and Quality Characteristics of Kwamaegi added Kimchi (과메기 첨가 김치의 숙성과 품질특성)

  • Jung, Yoo-Kyung;Oh, Seung-Hee;Kim, Soon-Dong
    • Food Science and Preservation
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    • v.14 no.5
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    • pp.526-530
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    • 2007
  • The effects of kwamaegi (0, 6, 12 and 18%, all w/w) on the quality characteristics of Kimchi during fermentation at $10^{\circ}C$ were investigated. The mixtures are denoted KK. The late of decrease in pH during KK fermentation was lower than that of control. The number of total microbes (T) in Kimchi controls fermented for 14 days did not differ, and were in the range of $8.64{\sim}8.68\;log\;CFU/g$, whereas the numbers of lactic acid bacteria (L) in KK were higher than in controls. The L/T(%) was 78.41 in control, 85.76 in 6% KK and $93.68{\sim}94.25%$ in the 16% or 18% KK samples. The hardness of tissue ($2.98{\sim}3.66{\times}10^7\;dyne/cm^2$) in KK fermented for 14 days was higher than that of control ($2.67{\times}10^7\;dyne/cm^2$). The content of alcohol-insoluble substances in KK juice (1.281.08 g/100 g) was lower than that of control (1.45 g/100 g). In sensory evaluation, the appearance and texture of KK were better than those of control. Although some fishy flavor was noted in KK, this did not affect acceptability. Sourness was less, whereas ripened taste and overall acceptability were higher in KK (especially 12% KK) compared to control.

Quality Characteristics of English Muffin with Powdered, Soft and Hard Type Rice Flour by Different Grinding Methods (제분방법을 달리한 분질미, 연질미 및 경질미를 이용한 잉글리쉬 머핀의 품질특성)

  • Choi, Ok-Ja;Shim, Ki-Hoon;Ma, Eun-Bich;Lee, Seul;Son, Kyeong-Suk;Jung, Hee-Nam
    • Korean journal of food and cookery science
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    • v.31 no.5
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    • pp.544-550
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    • 2015
  • This study investigated the quality characteristics of English muffins made rice flour created using different grinding methods (DPR: powdered type rice flour by dry milling. DSR: soft type rice flour by dry milling. DHR: hard type rice flour by dry milling. WPR: powdered type rice flour by wet milling. WSR: soft type rice flour by wet milling. WHR: hard type rice flour by wet milling). The volume, volume expansion, and specific volume were the highest in WPR. The shape and cross section indicated that WPR, WSR and DPR were the best quality. The L value was the highest in DHR, the b value was the highest in DPR. Hardness, gumminess and chewiness were the lowest in WPR, and the highest in DHR. According to result of the sensory evaluation, the color, flavor, appearance, texture and overall acceptability were the highest in WPR, while the taste preference was the highest in WSR.

Suitability of Various Domestic Wheats for Korean-Style Steamed Bread (한국형 찐빵 제조시 국내산 밀 품종의 적합성)

  • 김창순;황철명;김혁일;정동진;한재홍
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.30 no.6
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    • pp.1129-1136
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    • 2001
  • This study was to investigate the suitability of six domestic wheat cultivars for the Korean-style steamed bread made under optimal conditions. Six wheat flours milled from cultivars of Greu, Kumgang, Eunpa, Taptong Kobun, and Allgreu contained 13.8, 13.7, 13.7, 13.0, 11.7, 11.0% of protein. Control bread was made from blend (protein 10.5%) of 50% high strength and 50% low strength wheat flours milled from imported wheats. The volume of steamed bread made from Kumgang was highest followed by Eunpa, Tapdong, Kobun, Greu, control bread, Allgreu. Especially, the bread qualities of Kumgand and Kobun were superior to the control bread, showing better surface characteristics such as smoothness, glossiness, and whiteness, better shapes and desirable texture. Domestic wheat flours, having medium strength with high protein content above 13.0% were suitable for steamed bread except for Greu. Volumes of steamed bread made from domestic wheat flours were correlated with protein and ash content, flour color (L value), farinograph dough development time and stability, whereas spread ratio, total bread score and overall acceptability were correlated with farinograph dough stability It is concluded that flour quality is more important factor than protein content when domestic wheat flours are chosen for Korean-style steamed bread

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Qualify Characteristics of Baechukimchi Added Ginseng during Fermentation Periods (인삼이 첨가된 배추김치의 발효중 품질 특성)

  • Ku, Kyung-Hyung;Lee, Kyung-A;Park, Wan-Soo
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.35 no.10
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    • pp.1444-1448
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    • 2006
  • This study was investigated for quality characteristics of Baechukimchi with ginseng during fermentation. For Baechukimchi preparation, original ingredients of Baechukimchi and high contents of ginseng were used. In the initial pH and titratable acidity of each samples, ginseng -added Kimchi showed a little higher value than pH 5.48 and 0.25% acidity of the control Kimchi. Ginseng-added Kimchi showed higher values of total microbes $(1.90\times10^6\sim2.93\times10^6)$ and lactic acid bacteria $(2.21\times10^6\sim2.62\times10^6)$ than the control Kimchi. The control Kimchi was total microbes of $1.59\times10^5$ and lactic acid bacteria of $7.60\times10^4$. According to fermentation periods, ginseng-added Kimchi showed decrease of pH and increase of titratable acidity than the control Kimchi, but it. was not different for the microbes between Kimchi samples. In the taste intensity of sensory evaluation, ginseng-added Kimchi was evaluated higher value than the control Kimchi and kept up texture, properties of initial preparation between samples during fermentation periods. In the crude saponin content, raw ginseng was 5.89% by dry basis and it was decreased to 3.74% after fermentation. And the individual ginsenosides content of Re, $Rg_1$, Rf, $Rg_2,\;Rh_1,\;Rb_1,$, Rc, $Rb_2$, Rd, $Rg_3$, but $Rg_3$ were decreased and $Rh_1$ were increased from 16.6 mg%, and 22.2 mg/% to 59.2 mg%, and 39.4 mg%, respectively.

Optimization of the Cold-air-drying Condition for a Steamed Pumpkin-Sweet Potato Slab (증절간 호박고구마의 냉풍건조조건 최적화)

  • Shin, Mi-Young;Lee, Won-Young
    • Food Science and Preservation
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    • v.18 no.4
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    • pp.488-496
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    • 2011
  • Cold-air drying was conducted for a steamed pumpkin-sweet potato slab to improve its quality, convenience, and preference as a snack. A steamed pumpkin-sweet potato slab was dried from 10 to $25^{\circ}C$ for 48 h, and its moisture content, color, texture, and taste at different drying temperatures and drying times were evaluated. The lowest moisture content was 4.98%, at $25^{\circ}C$. The lightness decreased, but the other color values (a, b, and ${\Delta}E$) increased with the increasing drying temperature and drying time. The reducing sugar and soluble solid ranged from 98.7 to 194.75 mg/g and 19-70 $^{\circ}Brix$, respectively. The highest hardness of the steamed pumpkin-sweet potato slab was 23.88 $kg_f/cm^2$, and the springiness and cohesiveness were 91.15 and 98.36% when it was dried at $25^{\circ}C$ for 48 h. The sensory evaluation score was high at $10^{\circ}C$, 40 h and at $25^{\circ}C$, 24 h. The optimum drying condition was predicted at $19^{\circ}C$, 32 h via response surface methodology (RSM).

Quality characteristics of Yanggaeng with extracts and powder of roasted coffee ground residue (커피박 추출물 및 분말 첨가 양갱의 품질 특성)

  • Kim, Byeong-Guk;Park, La Young;Lee, Shin-Ho
    • Food Science and Preservation
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    • v.23 no.5
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    • pp.631-637
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    • 2016
  • Quality characteristics of Yanggaeng prepared with water extract (CRE) and powder (CRP) of roasted coffee ground (CR) were investigated. Total polyphenol content and DPPH raidcal scavenging ability of water extract of CRE were 13.52 g/mL and 78.75%, respectively. The pH ranges of Yanggaeng prepared with CRE (CREY) and CRP (CRPY) were 7.10~7.29 and 6.95~7.15, respectively. The DPPH radical scavenging activities of CREY containing 0.1~1.0% CRE showed 8.77~43.10% and CRPY containing 0.1~1.0% CRP showed 5.28~14.92%. The total polyphenol contents and DPPH radical scavenging activity of CREY and CRPY increased significantly with increasing CRE and CRP concentrations (p<0.05). Sensory evaluation which includes taste, flavor, texture, and overall acceptability of CREY and CRPY were higher than that of control. The overall acceptability showed the highest levels in Yanggaeng containing 0.5% CRE and containing 0.3% CRP. These results indicate the potential use of roasted coffee ground residue as a valuable resource for development of side menu in coffee restaurants.

Quality Characteristics of Noodle Supplemented with Skate (Raja kenojei) Skin and Bone Powder (홍어 분말 첨가에 따른 국수의 품질 특성)

  • Kim, Kyung-Hee;Park, Bock-Hee;Kim, Dong-Han;Cho, Hee-Sook
    • Journal of the East Asian Society of Dietary Life
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    • v.18 no.3
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    • pp.353-360
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    • 2008
  • This study evaluated the quality characteristics of dried noodles made of wheat flour supplemented with different concentrations of skate powder. Cooking quality, mechanical texture properties, gelatinization temperature and viscosity were measured, after which sensory evaluation was performed with prepared noodles. Water binding capacity, solubility and swelling power of the composite skate powder and wheat flours were higher than those of pure wheat flour. Gelatinization temperature of the composite skate powder and wheat flours increased, while initial, interim, and maximum-viscosity at $95^{\circ}C$, decreased, with increasing skate powder content. In relation to color values, increasing skate flour content led to decrease in L and b values and increase in a value. For the textural characteristics, the addition of skate powder increased hardness, springiness, chewiness and adhesiveness. Overall, noodles made with 3% skate powder were preferred compared to other samples.

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