• Title/Summary/Keyword: flavors

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Analysis of Free Amino Acids and Flavors in Fermented Jujube Wine by HPLC and GC/MS (GC-MS 및 HPLC를 이용한 대추발효주의 유리 아미노산 및 향기성분 분석)

  • Chun, Myoung Sook;Kim, Soon Jin;Noh, Bong Soo
    • Korean Journal of Food Science and Technology
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    • v.44 no.6
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    • pp.779-784
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    • 2012
  • Characteristic chemical compositions of jujube wine using different preparation methods including fermentation were investigated. Fermentation for jujube wine started using whole fruit (JW1), seed-removed fruit (JW2) and whole fruit heated at $100^{\circ}C$ for 2 h and then extracted (JW3). The free amino acids and flavors were analyzed quantitatively by HPLC and GC-MS. A total of 18 amino acids were identified in all samples. The amount of total free amino acids was detected from 141-210 ppm (JW1), 147-342 ppm (JW2), and 336-362 ppm (JW3). Large amounts of proline, aspartate, glutamate, arginine and alanine were detected in jujube wine. Thirteen kinds of volatile compounds including six alcoholic compounds (ethyl alcohol, iso-butyl alcohol, n-butyl alcohol, iso-amyl alcohol, n-amyl alcohol, and phenethyl alcohol), four ester (ethyl acetate, hexyl acetate, ethyl caprylate, and phenethyl acetate) and three aldehydes (diethylacetal, furfural, and benzaldehyde) were detected. Ethyl alcohol (30.50-33.95% peak area), benzaldehyde (2.55-15.97% ratio), furfural (0.07-15.28% ratio), iso-amyl alcohol (1.04-14.73% ratio), and phenethyl acetal (0.78-9.28% ratio) were abundant in jujube wine.

Development of Ice Cream with Improved Microbiological Safety and Acceptable Organoleptic Quality Using Irradiation (감마선 이용 미생물학적 및 관능적 품질이 우수한 아이스크림의 개발)

  • Kim, H.J.;Jang, A.;Ham, J.S.;Jeong, S.G.;Ahn, J.N.;Byun, M.W.;Jo, C.
    • Journal of Animal Science and Technology
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    • v.49 no.4
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    • pp.515-522
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    • 2007
  • To develop the manufacturing method of ice cream with microbiologically safe and proper sensory quality using irradiation for sensitive consumer, 3 different flavors, which were resistant to their flavors against irradiation, were selected and used for ice cream manufacturing to reduce the irradiation-induced off-flavor problem. The general composition was not different among treatments. Total aerobic bacteria were detected as 2.38, 1.23, 1.38, and 1.15 log CFU/g level in ice cream with control(no flavor added), spearmint, mint, and citrus flavor, respectively. No viable cells were observed by irradiation at 1 kGy except for the control. Sensory evaluation indicated that the irradiated ice cream with spearmint flavor at 1 kGy and citrus flavor at 3 kGy had higher overall acceptability. Therefore, a low dose irradiation (less than 3 kGy) with mint or citrus flavors may enhance the safety of ice cream with proper sensory quality for sensitive consumer.

Characteristics of Korean Alcoholic Beverages Produced by Using Rice Nuruks Containing Aspergillus oryzae N159-1

  • Kim, Hye Ryun;Lee, Ae Ran;Kim, Jae-Ho
    • Mycobiology
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    • v.45 no.2
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    • pp.119-122
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    • 2017
  • Herein, nuruks derived from non-glutinous and glutinous rice inoculated with Aspergillus oryzae N159-1 (having high alpha-amylase and beta-glucosidase activities) were used to produce Korean alcoholic beverages. The resultant beverages had enhanced fruity (ethyl caproate and isoamyl alcohol) and rose (2-phenethyl acetate and phenethyl alcohol) flavors and high taste scores.

다시마 알긴산을 이용한 에스테르 화합물의 미세 캡슐화

  • 유병진;임영선
    • Proceedings of the Korean Society of Fisheries Technology Conference
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    • 2002.10a
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    • pp.77-79
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    • 2002
  • 방향성분을 오랜 기간동안 방향을 유지하도록 하는 캡슐화의 방법은 심재료를 벽막물질로 둘러싸는 과정으로, 둘러싸인 aromas, flavors 및 열에 민감한 심재료를 보호하고 shelf-life의 연장 및 방출을 조절할 수 있다는 이점이 있어서 향기 성분을 유지하는데 많이 사용되고 있다 (Risch and Reineccius, 1986). 그리고 향기 성분을 오랫동안 유지하기 위하여 매트릭스의 선택도 중요한 요인으로 알려져 있는데 현재 연구되고 있는 매트릭스로써의 탄수화물은 maltodextrins, corn syrup solid, modified starch 그리고 gum acacia (Reineccius, 1991) 등을 들 수 있다. (중략)

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Volatile Flavor Components of Traditional Korean Nuruk Produced by Nuruk Fungi (누룩사상균으로 제조된 전통누룩의 휘발성 향기성분)

  • 김현수;유대식
    • Microbiology and Biotechnology Letters
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    • v.28 no.5
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    • pp.303-308
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    • 2000
  • The character-istics of the volatile flavor components of traditional Korean Nuruk produced by Aspergillus oryze NR 3-6 and Penicillium expansum NR 7-7 were investigated. Volatile flavor of Nuruk was identified twenty-one components by gas chromatography-mass spectronmeter. Major flavor components were alkanes such as tridecan, tetradecan, penta-decane, hexadecane, heptadecane, octadecan, undecane, and dodecane.

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Effect of Charcoal Broiling on the Formation of Volatile Compounds in Gamma-Irradiated Dakgalbi, a Korean Chicken-Based Food

  • Kang, Geon-Ok;Yoon, Young-Min;Kim, Jae-Kyung;Song, Beom-Seok;Byun, Eui-Baek;Kim, Jae-Hun;Lee, Ju-Woon;Park, Jong-Heum
    • Food Science of Animal Resources
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    • v.33 no.5
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    • pp.603-609
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    • 2013
  • The purpose of this study is to evaluate the change of volatile compounds in Dakgalbi cooked by charcoal broiling. Fresh deboned and marinated chicken meat was cooked by electric-pan frying or charcoal broiling and subsequently irradiated with a dose of 0, 10 and 20 kGy. Volatile components from Dakgalbi were analyzed using solid phase micro-extraction gas chromatography - mass spectrometry (SPME GC-MS) and identified through the comparison of mass spectrum database. SPME GC-MS analysis shows that a total of 32 volatiles were identified. Among them, aldehydes such as hexanal and octanal, which have relevance to off-flavors such as green, paint, metallic, bean and rancid were detected in Dakgalbi cooked by both methods. However, the contents were less detected in the Dakgalbi cooked by charcoal broiling than in the Dakgalbi cooked by electric-pan frying. Gamma-irradiation caused the change in the formation of these aldehydes in cooked Dakgalbi. The irradiation significantly increased the contents of hexanal and octanal in Dakgalbi cooked by electric-pan frying and a similar increase was found in Dakgalbi cooked by charcoal broiling. However, the contents of the off-flavors were much less in the latter. The results suggest that charcoal broiling might be more effective than electric-pan frying for the reduction of the contents of off-flavor such as hexanal and octanal increased in Dakgalbi by gamma-irradiation.

Relationships between Descriptive Sensory Attributes and Physicochemical Analysis of Broiler and Taiwan Native Chicken Breast Meat

  • Chumngoen, Wanwisa;Tan, Fa-Jui
    • Asian-Australasian Journal of Animal Sciences
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    • v.28 no.7
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    • pp.1028-1037
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    • 2015
  • Unique organoleptic characteristics such as rich flavors and chewy texture contribute to the higher popularity of native chicken in many Asian areas, while the commercial broilers are well-accepted due to their fast-growing and higher yields of meat. Sensory attributes of foods are often used to evaluate food eating quality and serve as references during the selection of foods. In this study, a three-phase descriptive sensory study was conducted to evaluate the sensory attributes of commercial broiler (BR) and Taiwan native chicken (TNC) breast meat, and investigate correlations between these sensory attributes and instrumental measurements. The results showed that for the first bite (phase 1), TNC meat had significantly higher moisture release, hardness, springiness, and cohesiveness than BR meat. After chewing for 10 to 12 bites (phase 2), TNC meat presented significantly higher chewdown hardness and meat particle size, whereas BR meat had significantly higher cohesiveness of mass. After swallowing (phase 3), TNC meat had higher chewiness and oily mouthcoat and lower residual loose particles than BR meat. TNC meat also provided more intense chicken flavors. This study clearly demonstrates that descriptive sensory analysis provides more detailed and more objectively information about the sensory attributes of meats from various chicken breeds. Additionally, sensory textural attributes vary between BR and TNC meat, and are highly correlated to the shear force value and collagen content which influence meat eating qualities greatly. The poultry industry and scientists should be able to recognize the sensory characteristics of different chicken meats more clearly. Accordingly, based on the meat's unique sensory and physicochemical characteristics, future work might address how meat from various breeds could best satisfy consumer needs using various cooking methods.

A Literatural Reserch for the Practical Use of the Balsaminaceae (봉선화과 식물의 활용을 위한 문헌적 조사)

  • Bang, Jeong Hwan;Chong, Myong Soo
    • Journal of Korean Medical Ki-Gong Academy
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    • v.13 no.1
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    • pp.77-104
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    • 2013
  • In this study we examined the concerned literature for clinical use of Balsaminaceae plants focusing on the latest literature "zhong hua ben cao"(chinese materia medica, 1998). The findings were summarized as follows: 1. As an original plant, 27 species have been reviewed. 2. As a result of investigating oriental drug names by medicinal using part, a survey reported that the total of 22 species of oriental drug names, including 14 species of herba, 3 species of flos, 4 species of radix and rhizoma, and 1 species of semen, are being used for clinical use. 3. When we examined oriental drugs with five flavors by calculating and arranging their nature, effect, toxicity with points for conveniences sake, pungent and bitte showed 13 points, respectively, as main flavors. In drug nature, warm property of drug indicated 10 points and cold property of drug obtained 6 points. But as for other oriental drug, it is thought that we can recognize their significance. 4. With respect to efficacy, activating blood drug reached 10 kinds and wind- damp-dispelling 7 kinds, according to the examination. 5. In the examination on components and medicinal action, we examined that components are recorded in only impatiens balsamina's whole grass, flowers, root, root stems, and seeds, and Impatiens noli-tangere's whole grass. In medical action, we found out that the components are recorded in impatiens balsamina' flowers and seeds; impatiens noli-tangere's whole grass and flowers; and Impatiens textori' whole grass. 6. As a result of examining clinical prescription, the total of 84 kinds of clinical prescriptions by disease nature were examined, of which the prescription of Impatiens balsamina showed 19 cases in total, which was remarkable.

Recognition Process and Effects of Fragrance(aroma) in Oriental Medicine (한의학에서 바라본 향의 인지 과정과 인체 작용)

  • Uhm, Ji-Tae;Kim, Kyoung-Shin;Kim, Byoung-Soo
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.24 no.6
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    • pp.935-941
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    • 2010
  • Fragrance(aroma) have many effects on body. Recently, aromatherapy was used to treat dementia, atopicdermatitis, alopecia areata, perineal disease, lymphatichydrops, and articularrheumatism. And people are interested in physical and mental effects of aroma, especially in mental. People empirically have been known the effects of aroma on soul and used aroma in life from long ago. They have had a meditation and had a sacrificial rites burning incense. Scholars also burned incense when reading books or tasting tea. Until now, there is no physiological study about recognition process and effects of aroma on body, but only many clinical studies using aromatherapy. Fragrance(aroma) is different from smell and good flavors of herbs. And it goes through nose and has effects on body in harmony on So-mun(素問). Also flavors of herbs are spreaded ki of herbs and have many effects on body. Aroma coming through the nose is recognized by co-operation of five-viscera(五臟), especially heart and lung. The nose and pectoral qi(宗氣) are related with lung. The lung opens into the nose, reflect its physiological and pathological conditions. Pectoral qi(宗氣) is the combination of the essential qi derived from food with the air inhaled, stored in the chest, and serving as the dynamic force of blood circulation, respiration, voice, and bodily movements. Because of the heart-spirit(心神), Heart is the organ can recognize the aroma, although the nose is the first organ of receiving aroma. Five spirits(五神: ethereal soul(魂), spirit(神), ideation(意), corporeal soul(魄), will(志)) and seven emotions(七情: joy(喜), anger(怒), anxiety(憂), thought(思), sorrow(悲), fear(恐), fright(驚)) are rerated with five-viscera(五臟) and essence-spirit (精神) processing steps and express of emotions. And aroma effects on five-viscera(五臟). So aroma have many effects on body, especially mentally.

Allium monanthum Flavors, Biological Activity and Characteristics according to collecting in Different Region (달래의 향기성분, 생리활성과 채취 지역별 품질특성)

  • Oh, Tae-Seok;Kim, Chang-Ho;Cho, Yong-Koo;Kim, Sung-Min;Kim, Pom-Ho;Shin, Dong-Il
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.15 no.8
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    • pp.5176-5185
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    • 2014
  • This study was conducted from 2010 to May 2012 to determine the volatile flavor compositions, biological activity and components of A. monanthum from different regions in Korea. The flavors of A. monanthum were extracted by SPME methods and it contained forty-two compounds that included mainly hydrocarbons and acids. The cancer cell growth inhibition activities of A. monanthum on the cancer cell (HaCaT, HepG2, HCT116, PC3) line were increased in a dose-dependent manner and the hexane fraction showed the highest antiproliferation effects. A. monanthum also showed the highest antioxidant activity. The results suggest that A. monanthum can be used as bioactive and functional materials.