• Title/Summary/Keyword: overall quality of the juice

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Combination effects of nitrite from fermented spinach and sodium nitrite on quality characteristics of cured pork loin

  • Kim, Tae-Kyung;Lee, Mi-Ai;Sung, Jung-Min;Jeon, Ki-Hong;Kim, Young-Boong;Choi, Yun-Sang
    • Asian-Australasian Journal of Animal Sciences
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    • v.32 no.10
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    • pp.1603-1610
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    • 2019
  • Objective: The purpose of this study was to investigate the effect of fermented spinach derived nitrite and sodium nitrite on cured pork loin. Methods: The following treatments were prepared using brine (8% [w/v] salt): Control (-), no nitrite added; Control (+), 0.08% (w/v) sodium nitrite brine; T1, 0.04% (w/v) nitrite fermented spinach juice in 0.04% (w/v) sodium nitrite brine; T2, spinach juice in 0.04% (w/v) sodium nitrite brine; T3, 0.04% (w/v) nitrite fermented spinach juice used as sodium nitrite free brine; and T4, spinach juice used as sodium nitrite free brine. T2 and T4 were incubated to allow to reduce nitrate to nitrite. Results: Spinach juice did not affect cooking loss and pH but negatively influenced flavor and overall acceptability (p<0.05). T1 samples containing synthetic and natural nitrites showed the highest redness values. Spinach juice negatively affected volatile basic nitrogen; however, thiobarbituric acid reactive substance values of T1 and T3 were similar to those of controls (+) (p>0.05). Residual nitrite content decreased with decreasing synthetic nitrite levels. T1 and control samples showed no significant differences in overall acceptability (p>0.05). Conclusion: Thus, combined synthetic and natural nitrites improved the quality of cured pork loin.

Quality Characteristics of Noodle Added with Radish Juice Containing Pulp (과육이 포함된 무즙으로 반죽한 국수의 품질특성)

  • Jeong, Ji-Yun;Park, Hee-Jin;Won, Sam-Yeon;Kim, Sung-Soo
    • Korean journal of food and cookery science
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    • v.32 no.5
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    • pp.559-566
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    • 2016
  • Purpose: This study was to investigate the quality characteristics of wet noodle added with radish juice containing with pulp. Methods: Wet noodles were prepared with different amounts of radish juice (0%, 20%, 40%, 60%, 80%, 100%, w/w) instead of water. Results: As the amount of radish juice was increased, water absorption, volume increasing rate, and turbidity of soup were decreased. Lightness (L) values of uncooked wet noodles and cooked noodles were decreased with the addition of radish juice, while redness (a) and yellowness (b) values had no tendency of increasing or decreasing, regardless of the amount of radish juice. Moreover, lightness, redness, and yellowness values of uncooked noodles were higher than those of cooked noodles. The texture of cooked noodles showed significant differences in hardness and chewiness. It was increased as the amount of radish juice was increased. Their adhesiveness and springiness were lower than those of the control. Appearance, texture, and overall acceptability of sensory evaluation revealed that the noodle added with 80% of radish juice had the highest scores, although there were no differences among noodles added with different amounts of radish juice. Conclusion: In summary, the most desirable blending ratio of radish juice and water for the kneading of wet noodles was 80:20.

Changes in Quality of PEF Treated Apple Juice during Storage (고전압 펄스 전기장 처리된 사과주스의 저장중 품질변화)

  • Kim, Kyung-Tack;Kim, Sung-Soo;Lee, Young-Chun
    • Korean Journal of Food Science and Technology
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    • v.31 no.2
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    • pp.375-379
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    • 1999
  • This study was designed to develop non-thermal pasteurized fresh apple juice by applying pulsed electric field (PEF) treatment. The effect of non-thermal PEF treatment on physicochemical and sensory properties of apple juice was examined by measuring changes in vitamin C contents, colors, flavors and sensory properties. Color of PEF and heat treated apple juices was not significantly different from each other. Vitamin C content of PEF treated apple juice was close to that of fresh apple juice, but was much higher than that of heat treated apple juice. Heat treated apple juice lost 70% of flavor components, whereas PEF-treated apple juice lost only 15%. Sensory scores of PEF treated apple juice were significantly higher than heat-treated one in flavor, taste and overall acceptability. In conclusion, PEF treated apple juice had superior physico-chemical and sensory properties to heat-treated one.

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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.

Effect of Cherry Silverberry(Elaegnus multiflora) Juice on the Quality of Sulgidduk (보리수즙 첨가가 설기떡의 품질에 미치는 영향)

  • Choi, Hea Uk;Kim, Hyeyoung
    • The Korean Journal of Community Living Science
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    • v.26 no.4
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    • pp.707-716
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    • 2015
  • To evaluate the effects of cherry silverberry (Elaegnus multiflora) juice on sulgidduk, rice cakes were prepared using different quantities of cherry silverberry juice (0%, 33%, 66%, and 100%). The pH level of the control group was higher than that of other groups with cherry silverberry juice. The moisture content of the control group was higher than that of other groups with cherry silverberry juice. In terms of color, the L-value were significantly higher in the control group than in other groups, whereas the a-value and the b-value were significantly lower in the control group than in other groups (p<0.001). The hardness, springness, gumminess, and chewiness of the control group showed the lowest values. Preferences for the appearance, texture, flavor, and overall acceptability of sulgidduk with 66% and 100% cherry silverberry juice were higher than those for other groups. These results suggest that cherry silverberry juice can increase the acceptability of sulgidduk and that 66-100% cherry silverberry juice may be appropriate for making sulgidduk.

Quality Characteristics of Yanggeng added with Pesticide Free Wild Grape (Vitis amurensis) Juice (무농약 산머루 즙을 첨가한 양갱의 품질특성)

  • Kang, Chang-Soo
    • Korean Journal of Organic Agriculture
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    • v.23 no.2
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    • pp.301-309
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    • 2015
  • This study was performed to investigate the quality characteristics of Yanggeng added wild grape (Vitis amurensis) juice. The yanggeng was prepared with pesticide-free wild grape juice, agar, sugar and salt. The yanggeng was made with various levels (0, 50, 100, 150, 200 g of wild grape juice in yanggeng, respectively) based on the total weight of water. It was estimated on Hunter's color value, texture profile analysis, and sensory characteristics of the Yanggeng. As the content of wild grape juice increased, The lightness (L) and yellowness (b) decreased and redness (a) increased. In texture profile analysis, hardness was increased; however, springiness, cohesiveness, gumminess and chewiness decreased with increasing levels of wild grape juice. The results of the sensory evaluation indicated that the Yanggeng containing the 150 g level of wild grape juice showed the highest preference scores in terms of color, taste, texture, flavor and overall acceptance. These results show that the yanggeng containing 150 g of wild grape juice is the better.

Effect of Maesil(Prunus mume Sieb. et Zucc) Juice on Yulmoo Mul-Kimchi Fermentation (매실즙이 열무 물김치의 발효숙성에 미치는 영향)

  • Jang Myung-Sook;Park Jung-Eun
    • Korean journal of food and cookery science
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    • v.20 no.5
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    • pp.511-519
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    • 2004
  • The optional ingredient, Maesil juice, was adopted to improve the quality of Yulmoo Mul-Kimchi during fermentation. The final weight of the Maesil juice as a percentage of the water content in the Yulmoo Mul-Kimchi was adjusted to 0, 1, 3, 5 and 7%. The physicochemical, microbiological and sensory characteristics were determined during fermentation at 10$^{\circ}C$ over a 30 days period. After fermentation, the additions of 3 and 5% Maesil juice gave the highest pH values and lowest total acidities. With regard to the reducing sugars, the 3 and 5% treatments gave the highest contents. The number of the total cell count and lactic acid bacteria increased to their maxima during fermentation, but began to decrease during the latter stages. Here, the additions of 3 and 5% Maesil juice showed distinctive lower and higher numbers of total cells and lactic acid bacteria, respectively, during the latter stages of fermentation. With regard to the sensory evaluation on the addition of Maesil juice, the results obtained with 3 and 5% additions to the fermented Yulmoo Mul-Kimchi were favored for color, smell, sour and carbonated tastes and overall acceptability of the products. Therefore, the optimum levels of Maesil juice addition to Yulmoo Mul-Kimchi were estimated to be between 3 and 5%.

Effect of Different Salt Concentrations and Temperatures on the Lactic Acid Fermentation of Radish Juice

  • Kim, Soon-Dong;Kim, Mee-Kyung;Ku, Yeun-Soo
    • Preventive Nutrition and Food Science
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    • v.4 no.4
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    • pp.236-240
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    • 1999
  • The characteristics of natural lactic acid fermentation of radish juice were investigated at different salt concentrations (0~2%) and temperatures (10~3$0^{\circ}C$). Major lactic acid bacteria isolated from the radish juice fermented at 2% slat concentration were Leuconostoc mesenteroides, Lactobacillus plantarum, and Lactobacillus brevis. The percentage of lactic acid bacteria against total microbe in the fermented radish juice was over 80% at 0~1% salt concentrations, suggesting the possibility of fermentation even at low salt concentration, but was still active even at 1$0^{\circ}C$. The time to reach pH 4.0 during fermentation of juice of 1% salt concentration was 281~301 hrs at 1$0^{\circ}C$ and 50-73 hrs at 3$0^{\circ}C$. The concentrations of sucrose and glucose in the fermented juice were low at high temperatures and were the lowest at a 1.0% salt concentration. However, the content of mannitol showed the opposite trend. Although sour taste, ripened taste, and acidic odor of the fermented juice showed no significant differences among various temperatures and salt concentrations, sensory values of ripened taste and sour acidic were high at high temperatures. The overall quality was the best at 1.0% salt concentration, irrespective of the temperature.

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Quality Characteristics of Jelly Added with Pressed Kiwi(Actinidia chinensis var. 'Halla Gold') Juice (참다래 과즙을 첨가한 젤리의 품질 특성)

  • Oh, Hyun-Jeong;Back, Jin-Woo;Lee, Ju-Yeon;Oh, Young-Ju;Lim, Sang-Bin
    • Culinary science and hospitality research
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    • v.19 no.5
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    • pp.110-120
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    • 2013
  • Five types of kiwi jelly were prepared with different rates of pressed kiwi juice and carrageenan, and their quality characteristics such as chemical composition, saccharinity, color, texture, and sensory attributes were measured. There were no significant changes in moisture, crude lipid, carbohydrate, but significant differences were shown in crude ash, crude protein, pH, and acidity. The pH decreased and acidity increased as the amount of added kiwi juice increased. The saccharinity of kiwi jelly increased with increased amount of added kiwi juice. Additionally, the total phenolic content, DPPH radical scavenging activity and content increased with increased amount of added kiwi juice. The hardness, gumminess, and chewiness increased with increased levels of carrageenan. As the amount of added carrageenan increased, the L values of kiwi jelly decreased. Based on the sensory evaluation test, kiwi jelly, JKJ(Jeju Kiwi Jelly)-3 was the best in the flavor, sweetness, texture, and overall acceptability. The chemical composition of JKJ-3 was as follows : moisture $75.1{\pm}0.5%$, carbohydrate $24.2{\pm}0.5%$, crude protein $0.29{\pm}0.05%$, and crude ash $0.44{\pm}0.02%$. The kiwi jelly, JKJ-3 of overall acceptability values in the sensory test for flavor, sweetness, hardness, texture and overall favorite were 3.65, 3.35, 3.35, 3.50 and 3.60, respectively, with the addition of 20% pressed kiwi juice and 2.3% carrageenan.

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Quality Characteristics of Aronia (Aronia melanocarpa) Juice added Yogurt Dressing (아로니아즙 첨가량에 따른 요구르트 드레싱의 품질특성)

  • Park, Ki-Bong;Kwon, Sun-Yong;Moon, Jong-Hee
    • Culinary science and hospitality research
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    • v.21 no.6
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    • pp.206-217
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    • 2015
  • This study sought to determine the physicochemical and sensory qualities of yogurt dressing prepared with different levels Aronia juice(0, 10, 20, 30, and 40%). As the amount of added Aronia juice increased, malic acid, acetic acid, and citric acid contents increased, although tartaric acid and lactic acid contents decreased. The viscosity of the control group(4,296.67 cP) was higher than those of the other groups(1,466.67~3,496.67 cP). The pH of the yogurt dressing containing 10% Aronia juice(3.83) was higher than those of the other groups(3.59~3.74). The sweetness of the yogurt dressing containing 10% Aronia juice($5.17^{\circ}Brix$) was higher than the other groups($2.47{\sim}3.47^{\circ}Brix$). Lightness decreased significantly, whereas a value and b value increased significantly with added levels of Aronia juice. DPPH radical scavenging activity of the control group was 7.42%, whereas those of the yogurt dressing samples with Aronia juice ranged from 26.30-69.86%. The sensory property results showed that the 20% Aronia juice added yogurt dressing group had the highest value in terms of color, thickness, taste, mouth feel, and overall acceptability. Overall, the results of this study indicates that the yogurt dressing containing 20% Aronia juice was the most preferred among the groups.