• Title/Summary/Keyword: flavor research

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Effect of Sarcodon Aspratus on the Physical and Sensory Properties of Cooked Chicken (능이버섯 첨가가 닭고기의 물리화학적 및 관능적 특성에 미치는 영향)

  • 이종호;박영희
    • Journal of Applied Tourism Food and Beverage Management and Research
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    • v.13 no.1
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    • pp.43-54
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    • 2002
  • An instrumental analysis of cooked chicken was carried out along with sensory evaluation to find out the effect of Sarcodon aspratus on the physicochemical and senory characteristics in comparision with kiwi fruit and pear. The moisture content of cooked chicken was increased in proportion to the increment of Sarcodon aspratus, kiwi fruit and pear. In the texture, shear force of cooked chicken was decreased with the increment of Sarcodon aspratus, kiwi fruit and pear. In terms of color, L-value was decreased by addition of Sarcodon aspratus, kiwi fruit and pear. but a-value was increased by addition of Sarcodon aspratus, kiwi fruit and pear. b-value was increased by addition of Sarcodon aspratus and pear. whereas b-value was decreased by addition of kiwi fruit. There were significant differences(p<0.05) in the sensory characteristics of the samples in which control was most preferred in taste and flavor. As the content of Sarcodon aspratus, kiwi fruit and pear was increased, the score of juiciness and tenderness was increased. In the overall acceptance, score of 0.05% Sarcodon aspratus and 10% pear was not different from that of control. Therefore, it can be concluded that 0.05-0.1% addition of Sarcodon aspratus might be desirable for the improvement of texture and juiciness of cooked chicken.

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Biochemical Characteristics of Whole Soybean Cereals Fermented with Mucor and Rhizopus Strains (Mucor 및 Rhizopus속 균류를 이용한 콩알메주 발효의 생화학적 특성)

  • Kim, Dong-Ho;Kim, Seung-Ho
    • Korean Journal of Food Science and Technology
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    • v.31 no.1
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    • pp.176-182
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    • 1999
  • Whole soybean cereal was fermented with four fungal strains (Mucor and Rhizopus) in pilot meju fermentation system. The pH range of the fermented soybean cereal was $7.16{\sim}8.38$, the contents of reducing sugar and amino-nitrogen were $0.54{\sim}2.64%,\;93{\sim}312mg%$, respectively, and that of free fatty acid ranged $0.06{\sim}2.00%$. The components of the amino acid, organic acid, free sugars and fatty acid showed distinctive patterns among four groups of fermented soybean cereals. Amylase activity and carbohydrate degradation rate of R. oryzae, protease and protein degadation rate of R. stolonifer was higher than other strains. But lipase and lipid degradation rates of four strains were similar. The odor concentrates of the soybean cereals fermented with Mucor strains were similar to Aspergillus strains, but Rhizopus were possessed of the flavor components of Bacillus and Aspergillus. Soysauce, made from M. hiemalis and R. stolonifer fermented soybean cereal showed excellent sensory evaluation and it was proposed that the two strains will be useful in Korean soysauce process.

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Changes in Volatile Constituents of Zingiber officinale Roscoe Rhizomes During Storage (생강 저장 중의 향기성분 변화)

  • Kim, Myung-Kon;Lee, Byung-Eun;Yun, Se-Eok;Kim, Young-Hoi;Kim, Young-Kyu;Hong, Jai-Sik
    • Applied Biological Chemistry
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    • v.37 no.1
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    • pp.1-8
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    • 1994
  • This study was carried out to investigate the changes in volatile constituents concerning with the flavor of the green ginger (Zingiber officinale Roscoe) during storage in underground pit ($15^{\circ}C$, RH 95%). And the constituents of essential oil of etiolated shoots formed on the mother rhizomes during the five months storage in the dark under same conditions were compared with those of mother rhizomes. The essential oils of Korean domestic ginger (Bong-dong cultivar) were isolated by simultaneous steam distillation and extraction method (SDE). Then the compositions of the essential oils were analysed by GC and GC-MS spectrometry. The major compounds of essential oil from the fresh rhizomes were zingiberene, $citronellol+{\beta}-sesquiphellandrene$, ${\beta}-phellandrene$, camphene, geranial, ${\gamma}-bisabolene$, ar-curcumene+geranyl acetate, ${\alpha}-pinene$, ${\beta}-gurjunene$, limonene and neral. The content of monoterpene hydrocarbons increased with a concomitant lowering in the amounts of sesquiterpene hrdrocarbons and oxygenated sesquiterpenes during storage of rhizomes although contents of the oxygenated monoterpens changed little or slightly during the storage. During the storage the content of such monoterpenes as camphene, ${\beta}-phellandrene$ and citral (neral and geranial) increased whereas the content of such sesquiterpenes as zingiberene and $citronellol+{\beta}-sesquiphellandrene$ decreased. The composition of shoot oil differed from that of mother rhizome oil in having higher content of terpene hydrocarbons and also in the higher content of bornyl acetate, ${\beta}-gurjunene$ and ar-curcumene+geranyl acetate and lower in citral (neral and geranial).

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Physicochemical Characteristics of Medicinal Herbs Ganjang (약용식물 추출물을 첨가한 간장의 이화학적 특성)

  • Shim, Sung-Lye;Ryu, Keun-Young;Kim, Won;Jun, Sam-Nyeo;Seo, Hye-Young;Han, Kyu-Jai;Kim, Jun-Hyeong;Song, Hyun-Pa;Cho, Nam-Chul;Kim, Kyong-Su
    • Food Science and Preservation
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    • v.15 no.2
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    • pp.243-252
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    • 2008
  • We investigated the physicochemical properties of Ganjang added to a medicinal herb extract (functional Ganjang). 1be proximate compositions of conventional Ganjang (control) and functional Ganjang (supplemented with 3% or 5% of an hem extract) were not significantly different Analysis of total and free amino acids indicated 17 different amino acids in both types of Ganjang. Glutamic acid was the most common, followed by valine, leucine, isoleucine, lysine, methionine, phenylalanine, and threonine. Sensory tests of conventional and functional Ganjang found no significant differences. An analysis of flavoring components indicated that flavor-active compounds (paeonol, senkyunolide A, and cnidilide) were present in both forms of Ganjang. Our results suggest that the extract could be used to manufacture fermented soybean products.

Quality Characteristics of Garaedduk with Roasted Rice Bran (볶음 미강 첨가량에 따른 가래떡의 품질 특성)

  • Choi, Eun-Hi;Lee, Ji-Hyun
    • Culinary science and hospitality research
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    • v.16 no.5
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    • pp.277-286
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    • 2010
  • This study examines the quality characteristics of garaedduk with roasted rice bran in addition of the control at 10%, 20%, 30% & 40% and to measure the mechanical and sensory quality characteristics in order to show the optimum addition ratio and production condition. The result of adding roasted rice bran with 10% up to 40% in all research groups are as follows; First of all, the moisture content was decreased and the "L" score which represents the brightness of garaedduk showed 68.86 in control which was non supplemented garaedduk. L-value decreased. However, a-value increased significantly and b-value increased except in control group. In the experiment on hadness, it showed 0.69 in control group and it showed 0.94 in garaedduk with 10% of roasted rice bran. Also, there was significant difference in hardness depending on the amount of roasted rice bran and storage period. In the experiment on the sensory evaluation of color and flavor in panel test, all groups showed higher scores than control group. Moreover, there was significant taste difference depending on the amount of roasted rice bran. As a test result, the overall acceptability by sensory evaluation was observed as 30%>10%>20%>40%> in the group added with roasted rice bran.

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Changes in Quality Characteristics and Antioxidant Activity of Bitter Melon (Momordica charantia L.) Pickle during Ageing (여주 피클 숙성 중 품질 특성 및 항산화 활성 변화)

  • Lee, Hee Yul;Park, Kyung Sook;Joo, Ok Soo;Hwang, Chung Eun;Ahn, Min Ju;Jeong, Young Sim;Hong, Su Young;Kwon, Oh Kyung;Kang, Sang Soo;Yuk, Heung Joo;Kim, Haeng-Ran;Park, Dong-Sik;Cho, Kye Man
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.44 no.3
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    • pp.401-411
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    • 2015
  • Bitter melon (Momordica charantia L.) has various biological functions, including anti-diabetic, anti-cancer, anti-inflammatory, anti-viral, and antioxidant activities. However, the development of foods using bitter melon (BM) is unexplored due to its bitter taste. In this study, BM pickle was prepared, and changes in quality characteristics and antioxidant activity during ageing were determined. After 4 weeks of ageing, pH levels, salinities, soluble solids, and reducing sugars of BM pickle decreased, whereas acidities increased. In addition, total viable, lactic acid bacteria, and yeast viable cell numbers greatly increased until 1 week, after which they slightly decreased. Levels of soluble phenolics increased during ageing, antioxidant activity increased accordingly. Crude protein, K, and P contents of pickles were lower than in raw material of BM, whereas crude fat and Na contents increased. Corn silk extracts were added to BM pickle during ageing in order to improve the bitter taste and flavor. The best sensory quality was obtained by adding 0.25% corn silk extracts.

Antioxidant Activity and Properties Characteristics of Pound Cakes Prepare using Job's Tears(Coix lachryma-jobi L.) Chungkukjang Powder and Wheat Bran Powder (율무 청국장 분말과 밀겨 분말을 혼용한 파운드 케익의 항산화 활성과 품질 특성)

  • Lee, Hye-Jeong;Pak, Hee-Ok;Jang, Jae-Seon;Kim, Sung-Su;Han, Chan-Kyu;Han, Jae-Heung;Oh, Jae-Bok
    • The Korean Journal of Food And Nutrition
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    • v.24 no.3
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    • pp.350-361
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    • 2011
  • A study was undertaken to examine the effect of the addition of job's tears(Coixlachryma-jobi L.) chungkukjang(soybeanfermented food) and wheat bran powder on quality attributes of pound cakes. Job's tears chungkukjang and wheat bran powder was added to the batter at a ratio of 10, 12.5 and 15% respectively. The antioxidant activity was estimated by DPPH free radical scavening activity, the total phenolic compounds content and flavonoid content in job's tears chungkukjang & wheat bran powder and pounds cakes. Antioxidative activity was highly correlated with the total phenolic and total flavonoids contents of job's tears chungkukjang and wheat bran pound cakes respectively(r=0.9671, r=0.8335). The quality characteristics of job's tears chungkukjang powder and wheat bran powder pound cakes were estimated in terms of the specific load volume, hardness, hunter value of crumb and crust and sensory quality of cakes. The specific volume were increased significantly with increasing substitution level of job's tears chungkukjang and wheat bran powder(p

Effect of Adding Lactobacillus-Fermented Solution on Characteristics of Chicken Breast Meat (식물성 유산균 발효액 첨가에 따른 닭 가슴육의 특성에 미치는 효과)

  • Kim, Sun Hyo;Jayasena, Dinesh D.;Kim, Hyun-Joo;Jo, Cheorun;Jung, Samooel
    • Korean Journal of Poultry Science
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    • v.41 no.2
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    • pp.127-133
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    • 2014
  • The effect of Lactobacillus-fermented solution (LFS) at a concentration of 0, 1 and 2% on shelf-life extension in terms of total aerobic bacteria and on color, lipid oxidation, and sensorial characteristics of injected chicken breast meat was tested during a 9-day storage period at $4^{\circ}C$. Throughout the whole storage days, addition of LFS showed the significant inhibition of total aerobic bacteria counts in chicken breast meat compared with that of control. However, the addition of LFS to chicken breast meat resulted in the decrease of pH, the increase of $L^*$ and $b^*$ values, and the increase of lipid oxidation in chicken breast meat when compared with those of control at any given storage period (P<0.05). In addition, the chicken breast meat added with LFS was subjected to low scores in sensorial properties such as flavor, taste, tenderness, and overall acceptability. The results suggested that LFS can be used for improving the shelf-life of chicken meat processing product, however, further study to prevent the deterioration of quality such as lipid oxidation and sensorial property is needed.

A Survey of the Adaptation and Preference for South Korean Food in North Korean Refugees (새터민들의 남한음식에 대한 수용과 선호도 조사)

  • Lee, Eun-Jung;Pei, Yong-Qin;Kim, Eun-Mi
    • Culinary science and hospitality research
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    • v.19 no.2
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    • pp.93-110
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    • 2013
  • The purpose of this study was to investigate the adaptation and preference for South Korean food among North Korean refugees. A survey was conducted on 220 North Korean refugees regarding general questions, adaptations, and preference on consuming dishes in South Korea. The results of the survey showed that the average difficulty degree scored with the adaptation to South Korean food was 3.06 points out of 5.00 points. The adaptation to Korean food was investigated as 'average' and some North Korean refugees had some difficulties in South Korean food. Some respondents described South Korean food as having very strong flavor that tastes more sweetened, seasoned, and spicy than North Korean food. The extended residency in South Korea allowed North Korean refugees to become more familiar with sweetened flavors. Most of them enjoy an oily and spicy taste more than South Koreans. North Korean refugees like Ssal bap, Naengmyeon, Doenjang-guk, Galbi-jjim, Bulgogi(beef, pork), Chaesobokkeum, Oi-saengchae, Chaeso-jeon, Baechu-kimchi, Saengsun-twigim, Soondae, pears, fruit juice, and spring water. North Korean refugees over the age of 30 years enjoy classic foods such as Japgokbap, Gimbap, Jumeokbap, Hwedeopbap, and Chobap. On the other hand, North Korean refugees less than 30 years old enjoy new foods like ramen and spaghetti.

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A Study on the Characteristics and Identity of Public Art in Historical and Cultural Areas - Focused on Taoxichuan in Jingdezhen - (역사문화지구의 퍼블릭 아트에서 나타나는 표현 특성과 아이덴티티 연구 - 징더전 시 도계천을 중심으로 -)

  • Li, JianHua;Yoon, Ji-Young
    • The Journal of the Korea Contents Association
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    • v.20 no.2
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    • pp.82-95
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    • 2020
  • This study takes the identity and characteristics of public art in historical and cultural regions as the research object. Through the theoretical investigation and research on the public art of historical and cultural regions, six evaluation factors that shape spatial identity and characteristics were drawn: Environmental characteristics, public characteristics; Symbolic characteristics; Artistic characteristics;.Historical characteristics; Interactivity. The identity and characteristics of Taoxichuan public art in Jingdezhen was analyzed and evaluated. The results show that the " public art " of seven large chimneys is consistent with the historical structure of the industry. Among them, environmental, public characteristics, symbolic, artistic and historical characteristics of the Industria park have a high degree of preservation value and can be recognized as the historical landmark of the park. In the new public art, the artistic quality of public art, the environment, and the public characteristic of public art, are also at a moderate level, but it is comparatively weak. Public art recreated as an industrial heritage has formed an identity that can communicate spiritual sympathy to the public by forming a time-space communication between the public with historical relics and ceramic elements, and the new public art for local rehabilitation has given new artistic flavor to the city, but the new identity has not been shown.