• Title, Summary, Keyword: flavor

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Studies on Flavor Enhancer Products Used in Korean Households in the Inchon Area

  • Chang, Kyung-Ja;Won Cha
    • Nutritional Sciences
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    • v.4 no.1
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    • pp.47-54
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    • 2001
  • This survey was carried out using a self-administered questionnaire in order to investigate the flavor enhancer products questionnaires were used out of 505 collected (collection rate : 84.2%). Most housewives used flavor enhancer products. Housewives with higher educations and employed housewives used significantly less flavor enhancer. The main reason for nonuse of flavor enhancer products was their perceived negative health effects. Housewives mainly used flavor enhancer products in stews and whole dishes. Most housewives used flavor enhancer products 1-2 times per day and housewives with higher educations and employed housewives used flavor enhancer products less frequently. As for the quantity of flavor enhancer products used, most housewives reported small to moderate amounts. Housewives with higher educations used significantly smaller amounts of flavor enhancer products. There was a significant difference in the kinds of flavor enhancer products used by housewives, depending on education level, household income, food expenditures and residence type. Most housewives purchased flavor enhancer products at wholesale marts. There was a significant difference in the places where flavor enhancer products were purchased among those of different education and household income levels. Therefore, these results may be useful in the development of safer and more variously flavored flavor enhancer products.

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Yogurt Flavor Compounds and Analytical Techniques (Yogurt의 향미성분과 분석기술)

  • Chang, Eun-Jung;Kwak, Hae-Soo
    • Journal of Dairy Science and Biotechnology
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    • v.18 no.1
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    • pp.61-72
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    • 2000
  • Consumers primarily consider flavor when they take yogurt. Recent researches on yogurt flavor productron its analytical technique have been extensively developed. These studies have provided a better understanding on the role of starter culture microorganisms on flavor formation and degradation. Yogurt volatile flavor compounds produced by the lactic cultures include acetaldehyde, diacetyl, ethanol and organic acid. Among them, acetaldehyde is recognized as a principal flavor component. since yogurt contains a delicate and low intense flavor, mild sample isolation techniques and sensitive identification means might be used. This paper attempts to discuss recent findings in yogurt flavor and to describe the application of yogurt flavor separation techniques. The section on practical aspects of culture selection based on flavor compound production and flavor analysis is also included.

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Flavor Release from Ice Cream during Eating

  • Chung, Seo-Jin
    • Food Science and Biotechnology
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    • v.16 no.1
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    • pp.8-17
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    • 2007
  • The main purpose of flavor research using conventional extraction methods, such as solvent extraction, distillation, and dynamic headspace, is to effectively extract, identify, and quantify flavor volatiles present in food matrices. In recent flavor research, the importance of understanding flavor release during mastication is increasing, because only volatiles available in the headspace contribute to the perception of food 'flavors'. Odor potency differs among flavor volatiles, and the physicochemical characteristics of flavor volatiles affect their release behavior and interaction with various food matrices. In this review, a general overview of flavor release and flavor-food interactions within frozen dessert systems is given with emphasis on chemical, physiological, and perceptual aspects. Chemical and sensory analysis methods competent for investigating such flavor-food interactions are illustrated. Statistical analysis techniques recommended for data acquired from such experiments are also discussed.

Garlic flavor (마늘 flavor)

  • Kim, Mee Ree;Ahn, Seung Yo
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.12 no.2
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    • pp.176-187
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    • 1983
  • Volatile flavor components of garlic and factors which influence on its flavors were reviewed. Growth, storage and processing conditions influence on the flavor intensity of garlic. To intensify garlic flavors, it is desirable that sufficient sulfate nutrition be supplied to the soil of growing garlic and that the suggested proportions of mineral composition and water content be considered. And to maintain the flavor intensity of post harvested garlic, flavor losses taken place during over inter storage mainly due to respiration, sprout and decay, have to be minimized. Among the various storage methods, combination method of post harvest hot-air drying and low temperature ($0^{\circ}C$), low humidity (RH 70-75%) is useful. The flavor of processed garlic is very much decreased as compared with that of fresh, and the decreasing rate of flavors depends on processing method. The synthetic garlic flavors were obtained by three types based on intermediate thiosulfinate, S-alk(en) yl-$\small{L}$-cyteine sulfoxlde-alliinase fission products and $\small{L}$-5-alk (en)yl thiomethylhydantoin ${\pm}$ S-oxides. These synthetic garlic flavors may be promised to be applied to food additives.

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Formation of Cheese Flavor Compounds by Amino Acid Catabolism (아미노산 이화작용에 의한 치즈 풍미 생성)

  • Lee, Won-Jae
    • Journal of Dairy Science and Biotechnology
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    • v.25 no.1
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    • pp.33-36
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    • 2007
  • Catabolism of amino acids, including sulfur-containing amino acids, can be responsible for the development of cheese flavor during ripening Since accelerating, intensifying, modulating cheese flavor development is of major economical interests, the identification of flavor compounds and enzymes contributing to cheese flavor development needs to be investigated. Generally, two different pathways, which are a transamination pathway catalyzed by aminotransferases and an elimination reaction catalyzed by lyases, potentially lead to conversion of amino acids into flavor compounds. In this review, enzymes and amino acid catabolic pathways responsible for cheese flavor formation will be discussed.

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Changes in flavor-relevant compounds during vine ripening of tomato fruit and their relationship with ethylene production

  • Wang, Libin;Luo, Weiqi;Sun, Xiuxiu;Qian, Chunlu
    • Horticulture, Environment, and Biotechnology : HEB
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    • v.59 no.6
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    • pp.787-804
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    • 2018
  • Flavor quality is import for determining consumer perception and acceptance of tomato products. In this study, 'Fendou' tomato fruit were harvested at six ripening stages and sampled to investigate the development of flavor-relevant compounds during vine ripening. Results showed that upon the initiation of ripening there was an increase in respiration rate and concomitant ethylene evolution that was associated with increased membrane permeability. In accordance with these physiological changes, flavor-relevant compounds demonstrated different expression patterns as fruit ripened, which contributed to 'red-ripe' flavor characteristics of red-ripe fruit. Based on correlation analysis between ethylene evolution and the flavor-relevant compounds during 'Fendou' tomato ripening and the other researchers' reports, the activation of System 2-dependent autocatalytic ethylene production plays an important role in the development of most flavor-relevant compounds during tomato vine ripening. Overall, our results suggested that most flavor-relevant compounds that accumulated the most during tomato fruit ripening at red stage could be under ethylene regulation and were among the most important contributors to the 'red-ripe' flavor. Due to the development of these compounds, the flavor quality at late ripening stages is different from that of fruit at early ripening stages.

Aroma Characteristics of Neungee(Sarcodon aspratus) (능이버섯의 향기특성)

  • Jeong, Ok-Jin;Yoon, Hyang-Sik;Min, Young-Kyoo
    • Korean Journal of Food Science and Technology
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    • v.33 no.3
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    • pp.307-312
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    • 2001
  • Flavor compounds in Neungee (sarcodon aspratus) were extracted by simutaneous distillation and extraction (SDE), supercritical fluid extraction (SFE) and headspace method. Flavor compounds obtained by various extraction methods were analyzed with GC and GC-MS. The funtionality of flavor compounds were determined by aroma extract dilution analysis (AEDA) of GC-ofactometry methods. Fifty one flavor compounds were totally identified in Neungee mushroom. However, the numbers of flavor extracted SDE, SFE and headspace were 33, 26 and 17 respectively. The major flavor compounds obtained by SDE, SFE and headspace were 1-octen-3-ol, 1-octen-3-one, 3-octanone, 2-octen-1-ol, 3-octanol, 1-octanol and benzenealdehyde. As the results of sniffing test, the major flavor compounds were found to be fresh mushroom flavor, wood flavor, refreshing sweet flavor, mold flavor, bitter-mushroom and metalic-flavor.

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Microencapsulation of Caramel Flavor and Properties of Ready-to-drink Milk Beverages Supplemented with Coffee Containing These Microcapsules

  • Kim, Gur-Yoo;Lee, Jaehak;Lim, Seungtae;Kang, Hyojin;Ahn, Sung-Il;Jhoo, Jin-Woo;Ra, Chang-Six
    • Food Science of Animal Resources
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    • v.39 no.5
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    • pp.780-791
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    • 2019
  • This study aimed to extend the retention of flavor in coffee-containing milk beverage by microencapsulation. The core material was caramel flavor, and the primary and secondary coating materials were medium-chain triglyceride and maltodextrin, respectively. Polyglycerol polyricinoleate was used as the primary emulsifier, and the secondary emulsifier was polyoxyethylene sorbitan monolaurate. Response surface methodology was employed to determine optimum microencapsulation conditions, and headspace solid-phase microextraction was used to detect the caramel flavor during storage. The microencapsulation yield of the caramel flavor increased as the ratio of primary to secondary coating material increased. The optimum ratio of core to primary coating material for the water-in-oil (W/O) phase was 1:9, and that of the W/O phase to the secondary coating material was also 1:9. Microencapsulation yield was observed to be approximately 93.43%. In case of in vitro release behavior, the release rate of the capsules in the simulated gastric environment was feeble; however, the release rate in the simulated intestinal environment rapidly increased within 30 min, and nearly 70% of the core material was released within 120 min. The caramel flavor-supplemented beverage sample exhibited an exponential degradation in its flavor components. However, microcapsules containing flavor samples showed sustained flavor release compared to caramel flavor-filled samples under higher storage temperatures. In conclusion, the addition of coffee flavor microcapsules to coffee-containing milk beverages effectively extended the retention of the coffee flavor during the storage period.

Identification and Antibacterial Activity of Volatile Flavor Components of Cordyceps Militaris

  • Park, Mi-Ae;Lee, Won-Koo;Kim, Man-Soo
    • Preventive Nutrition and Food Science
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    • v.4 no.1
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    • pp.18-22
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    • 1999
  • Flavor characteristics of raw Cordyceps militaris significatntly different from those of dried one. In the case of raw Cordyceps militaris , major flavor components were composed of 5 alcohols, 3 ketones, 4 phenols, 9 alkanes , and 3 alkenes. The major alcohol was 1-octen-3-ol(22.56%, 1147.3% ng/ml), which contributed to the characteristic green flavor. Ketones (3-ocatone, inparticular )were present in the highest concentration in raw Cordyceps militaris . In contrast, major flavor components of dried Cordyceps militaris were composed of 4 alcohols, 4 ketones, 3 furans, 4 pyrizines, 2 dithiazines, 5 phenols , 8alkenes , 17 alkanes, and 8 fatty acids. Dried Cordyceps militaris had unique sweet aroma of sesame as wella s a milky flavor. Green or fruit flavor were rarely detected . In alkanes , 10 cosanes, component fo wax were present. Typical flavor components of alkanes such as $\beta$-caryophyllen and Δ-cadinene were also detected. Fatty acids of dried Cordyceps militaris ranged from myristic acid (14 :0) to linoleic acid (18 ; 2). The sweet aroma of dried Cordyceps militaris was mostly due to pryazines, dithaiazines, and furans. Two dithaizines were identified and characteristics of these flavor components was a roasted bacon flavor. Strong antibacterial acitivity was observed toward Vibrio spp. such as V. vulnificus, V.cholerae, V. parahaemlyticus. Relatively high antibacterial acitivity was shown toward Bacillus subtilis , B,cereus, Staphyllococcus aureus, and Corynebacterium xerosis.

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Flavor of Fermented Black Tea with Tea Fungus (Tea Fungus 발효홍차의 향기)

  • 최경호;최미애;김정옥
    • Journal of Life Science
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    • v.7 no.4
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    • pp.309-315
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    • 1997
  • The fermented black tea with tea fungus (FBTF) was prepared by culturing tea fungus biomass in black tea with 10% sucrose (BT) at 30$\circ$ for 14 days. The flavor quality of FBTF was investigated by sensory and chemical analysis, and the results were compared with BT. The data of sensory analysis indicated that fruity, wine-like, sharp-pungent, and vinegar-like flavor notes were increase, while earthy note was reduced during fermentation. GC-MS analysis of volatile compounds collected from FBTF and BT by Tenax trap showed that linalool, liinalool oxide other flavor compounds known as black tea flavor compounds were disappeared. Some major flavor compounds produced during fermentation were acetic acid, ethanol, limonene, $\alpha$-terpineol, and these volatiles may be attributed to the flavor of characteristic FBTF. Biosynthetic pathway for the formation of limonene and $\alpha$-terpineol are proposed through mevalonic acid pathway using acetic acid as precusor and/or through transformation of linalool and linalool oxide.

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