• Title/Summary/Keyword: Bitter Taste

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Preparation and Characterization of Enrofloxacin/Carbopol Complex in Aqueous Solution

  • Chun, Myung-Kwan;Choi, Hoo-Kyun
    • Archives of Pharmacal Research
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    • v.27 no.6
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    • pp.670-675
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    • 2004
  • Since the bitter taste of enrofloxacin apparently limit the patient compliance in the oral formulations of the antibacterial agent, the masking of the taste is essential for the improvement of the therapeutic effectiveness. Therefore, this study was carried out to examine the feasibility of taste masking of enrofloxacin by the retardation of its dissolution rate using the formation of complex between the drug and Carbopol. The complexation between Carbopol and enrofloxacin was confirmed by turbidity, UV spectrophotometry, wide angle X-ray diffraction, and differential scanning calorimetry. The enrofloxacin content in the complexes was 34% (Carbo-enrofloxacin complex I) and 57% (Carbo-enrofloxacin complex II) depending on the prepara-tion method. The dissolution rate of enrofloxacin from the complex increased as the pH was reduced. The dissolution rate of enrofloxacin from the Carbo-enrofloxacin complex I was significantly lower than that of the enrofloxacin powder. Therefore, these observations suggest that Carbo-enrofloxacin complex I can be used to mask the taste of enrofloxacin.

The Taste Components of Ordinary Korean Soy sauce (한국재래식(韓國在來式) 간장의 맛 성분(成分)에 관한 연구(硏究))

  • Kim, Jong-Kyu;Kim, Chang-Sik
    • Applied Biological Chemistry
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    • v.23 no.2
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    • pp.89-105
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    • 1980
  • Soysauce was made in the salt concentrations of 22.0% and 28.5%, and the changing aspects in nucleotides and their related compounds, free amino acids, free sugars and non-volatile amines which are related to the taste components during the fermentation process with a view to examining the taste components in the ordinary Korean soysauce were studied. And then artificial soysauce was prepared by applying the values derived from the analysis and measurement, and its sensory evaluation was performed. As the result of the sensory evaluation of artificial soysauce prepared according to the value of components analyzed from soysauce which had been fermented for fourty days in the salt concentration of 22.0%, it has been found that artificial soysauce was similar in taste to ordinary Korean soysauce. So, the following facts have been found: glutamic acid and aspartic acid have MSG-like taste, and IMP has a synergistic effect with these acids, which play great roles in ordinary Korean soysauce; both free sugars such as galactose and amino acids such as glycine, alanine and lysine have sweet taste; both amines such as tyramine and histamine, and amino acids such as valine, leucine, isoleucine, and phenylalanine have bitter taste; these components, combined with saline taste of salt and sour taste of organic acids, are assumed to form the unique taste in the ordinary Korean soysauce.

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Physicochemical and Sensory Properties of Yuzu(Citrus junos) Treated with Enzyme Complex for Removing Bitter Substance (고미성분 제거를 위한 복합효소처리 후 유자의 이화학적 및 관능적 특성)

  • 김용두;김경제
    • Food Science and Preservation
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    • v.11 no.1
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    • pp.38-41
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    • 2004
  • To obtain basic data for utilizing Yuzu(Citrus junos) as row materials to industrial products, enzyme treatments conditions for removing bitter substances was investigated. The amount of nuringin and hesperidin weve 61.94 and 9.98 mg% in Yuzu juice. When 3% Amorepacific enzyme and Japanese naringinase were treated with the juice for 120 minutes, naringin and hesperidin were decreased to 6.85 and 1.11 mg% ; 8.43 and 0.06 mg%, respectively. The changes in Hunter color value of the juice were negligible by enzyme treatments. However, the redness was increased and lightness was decreased by the enzymes. When Yuzu-juice was treated with the enzymes, sensory scores were increased. The optimum amount of Amorepacific for reducing bitter taste was determined to 3%.

Correlation between Dysgeusia and Spleen qi Deficiency Patterns in Patients with Burning Mouth Syndrome (구강작열감증후군 환자의 미각 이상과 비기허증(脾氣虛證)의 상관관계)

  • Lee, Jung-eun;Park, Jae-woo;Kim, Jin-sung
    • The Journal of Internal Korean Medicine
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    • v.38 no.4
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    • pp.455-467
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    • 2017
  • Objectives: This study evaluated the correlation between taste function and spleen qi deficiency in patients with burning mouth syndrome (BMS) and compared subgroups of BMS (i.e., dysgeusia and non-dysgeusia subgroups). Methods: This study included 60 participants categorized into two groups: a BMS group and healthy control (HC) group. Taste threshold was measured within six levels using solutions of four basic taste qualities. Subjects' Oral Health Impact Profiles (OHIPs-14) and Spleen qi Deficiency Questionnaire (SQDQ) scores were analyzed. Results: Taste thresholds for sweet (sucrose) and salty (NaCl) tastes were significantly lower in the BMS group than in the HC group, but sour (citric acid) and bitter (quinine HCl) tastes showed no significant differences between groups. In the dysgeusia and non-dysgeusia subgroups, no significant differences in the four basic taste thresholds were found. SQDQ scores were significantly higher in the BMS group compared to the HC and in the dysgeusia group compared to the non-dysgeusia group. OHIPs-14 and SQDQ scores for the BMS group were significantly and positively correlated. Conclusions: Spleen qi deficiency is related to taste function and can be used to treat BMS patients with taste dysfunction.

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.

Study on making tea for sensory test, quality characteristics of bitter melon

  • Lee, Sang-Chang;Kim, Dong-il
    • Journal of Evidence-Based Herbal Medicine
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    • v.2 no.2
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    • pp.25-31
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    • 2009
  • Bitter melon Tea for this research and making tea is a sensual quality research on the Characteristics. Presented based on sensory evaluation. It's not about tea culture in quantitative and systematic quantitative description of the phrase was established. The progress of the research industry, Kyungwoon University 20 of students and faculty members representing, eight of specialist personnel, total 28 people in a group was formed. Bitter melon to highlight the health and functional matter. Aspects as the development of easy-to-drink tea, processing of tea and a variant of the changes made throughout the taste and flavor. Through the study of the drinking bitter melon tea is the optimum temperature of 70-72 ${^{\circ}C}$ and not match concentration of standard evaluation and the concentration of drinking volume, to drink soften the opinion has been established. The bitter melon tea through the systematic study of the phrase describes the temperature and the concentration was established.

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Umami Characteristics and Taste Improvement Mechanism of Meat

  • Md. Jakir Hossain;AMM Nurul Alam;Eun-Yeong Lee;Young-Hwa Hwang;Seon-Tea Joo
    • Food Science of Animal Resources
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    • v.44 no.3
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    • pp.515-532
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    • 2024
  • Taste is one of the five senses that detect vital information about what we are eating. Comprehending taste is crucial for enhancing the flavor of foodstuffs and high-protein foods like meat. Umami has global recognition as the fifth elementary taste, alongside sweetness, sourness, saltiness, and bitterness. Umami compounds are known to enhance the sensation of recognized flavors such as salty, sweet, bitter, and others. This could end up in greater food consumption by consumption by consumers. With the rising global population, meat consumption is rising and is projected to double by 2025. It is crucial to comprehend the umami mechanism of meat and meat products, identify novel compounds, and employ laboratory methodologies to gather varied information. This knowledge will aid in the development of new consumer products. Although very limited information is available on umami taste and compounds in meat through research data. This article discusses recent advancements in umami compounds in other foodstuff as well as meat to aid in designing future research and meat product development. Moreover, another objective of this review is to learn present techniques in foodstuffs to enhance umami taste and utilize that knowledge in meat products.

Characteristics of Cookies Quality Containing Bitter Melon (Momordica charantia L.) Powder (여주 가루 첨가 쿠키의 품질특성)

  • Moon, So Lyoung;Choi, Sang-Ho
    • Culinary science and hospitality research
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    • v.20 no.6
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    • pp.80-90
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    • 2014
  • This study was conducted to investigate the effects of bitter melon (Momordica charantia L.) powder on the quality characteristics. The bulk density of cookie dough of the test groups containing bitter melon powder did not show any significant difference compared to the control group. The pH of cookie dough and cookies decreased with the addition of bitter melon powder. The moisture content of the groups containing bitter melon powder was higher than that of the control group. The spread ratio of the groups containing bitter melon powder was higher but the loss rate of cookies was lower than those of the control group. In color, the L value was decreased significantly by addition of bitter melon powder, but the a and b values did not show any significant differences compared to the control group. The hardness of the test groups containing bitter melon powder was lower than that of the control group. For DPPH radical scavenging activity, the control group measured 20.69%, whereas the test groups containing bitter melon powder ranged from 38.37~69.48%. Sensory evaluation scores in terms of appearance, flavor, taste, texture and overall preference of the group containing 3% of bitter melon powder did not show any significant differences compared to the control group.

Quality Characteristics and Antioxidative Activities of Majakgwa added with Fermented Turmeric Powder (발효울금 분말 첨가가 매작과의 품질특성 및 항산화에 미치는 영향)

  • Choi, Soo-Nam;Choe, Eun-Hui;Yoo, Seung Seok
    • Korean journal of food and cookery science
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    • v.29 no.3
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    • pp.223-231
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    • 2013
  • This study was carried out for the purpose of inquiring into the effects on shelf-life, quality characteristics, and antioxidant activities, of Majakgwa. This study also regards to the use fermented turmeric powder at varying concentrations in the recipe. The proximate composition of fermented turmeric powder, crude fat, carbohydrate, crude protein, and crude ash was decreased. Viewed division compared to the freeze-dried turmeric curcumin content was increased during fermentation due to the increase of mineral content. With an increased of the amount of fermented turmeric powder used in Majakgwa recipes, the pH of the dough was higher than that of the controlled group. The acid value of Maejakgwa was lowered down, and most effectively controled when adding Turmeric power by 3~6%, and the peroxide value shows high antioxidant ability from the initial storagr period when adding 6%. TBA value appears to have the highest antioxidant ability, when adding 6%, showing lower increasing rate than that of sample group added 0~3% Turmeric powder. When added 9% or more, however, it shows higher TBA value comparing with normal Maejakgwa, the reference group, which indicates on the contrary that the antioxidant ability is lowering. The bitter taste, exterior color, incense of Turmeric, solidity, and crispy level of Maejakgwa with fermented Turmeric powder have been increased significantly as per increase of fermented Turmeric powder, and the sample group added with 9% have shown the best result in the overall taste level. It is anticipated that adding 6~9% of fermented Turmeric powder can increase the storage capability to give the best taste level and effective antioxidant ability by minimizing the off-flavor and bitter taste, through the research as above, which would be the most appropriate blending ratio of Turmeric powder for producing Maejakgwa.

Effect of Ozone Treatment on the Changes of Fatty Acids, Organic acids, and Sensory Properties in Ginseng Powder (오존처리가 인삼분말의 지방산과 유기산 함량 및 향미특성에 미치는 영향)

  • 곽이성;최강주;김나미
    • Journal of Food Hygiene and Safety
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    • v.11 no.1
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    • pp.51-55
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    • 1996
  • As a preliminary experiment to investigate the effect of ozone sterelization on the ginseng powder, the changes of fatty acid composition and organic acid content and sensory properties in ginseng powder treated with ozone was investigated. Ginseng powder was treated with 0.5 ppm ozone for 24 hours and 48 hours, respectively. With increase in ozone treatment time, the content of crude lipid and increase. Contents of unsaturated fatty acid-linolenic acid, linoleic acid, and oleic acid, etc.-decreased with ozone treatment time, whereas saturated fatty acid or same number-stearic acid-increased odor, bitter taste, roasted taste and sweet taste were thiner with ozone treatment times, but pungent taste was thicker with those treatment. These changes of ordors and tastes of ginseng powder with ozone treatment were predicted by oxydation of lipids, flavor components and saponins.

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