• Title/Summary/Keyword: alcohol beverage

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Manufacturing of Watermelon Beverage Added with Natural Color Extracts (천연 색소 추출물을 첨가한 수박 음료의 제조)

  • Hwang, Young;Lee, Ki-Kwon;Jung, Gi-Tai;Ko, Bok-Rae;Choi, Dong-Chil;Choi, Joung-Sik;Eun, Jong-Bang
    • Korean Journal of Food Science and Technology
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    • v.36 no.2
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    • pp.226-232
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    • 2004
  • Dilution concentration of watermelon juice, concentrations of added sugar, citric acid, and vitamin C, sterilization temperature and time, and natural color extracts were evaluated to determine optimum conditions for watermelon beverage production. Optimum dilution concentration of watermelon juice and optimum content of soluble solid were 40% and $12^{\circ}Brix$, respectively. Addition of 0.5 and 0.3 g/L or 1.0 and 0.3 g/L citric acid and vitamin C gave optimum sensory quality. Sterilization of watermelon beverage at above $70^{\circ}C$ decreased redness. Sterilization at $60^{\circ}C$ for 10 to 30 min or at $70^{\circ}C$ for 10 min achieved best sensory quality. Addition of 20 g/L raspberries gave best sensory quality among raspberries, omija, and borage. Hot water was better than alcohol for extraction of natural color. Ratio of extracts for optimum sensory quality was 7 : 3 for extract of 20 g raspberries/L : extract of 30 g omija/L.

A Comparative Analysis of Drinking Attitudes and Behavior among College Students in Busan (부산지역 남녀 대학생의 음주태도 및 음주행태 비교분석)

  • Kang, Ji-Eun;Choi, Han-Seok;Choi, Ji-Ho;Yeo, Soo-Hwan;Jung, Seok-Tae;Kim, Mihyang
    • The Korean Journal of Community Living Science
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    • v.25 no.1
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    • pp.19-27
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    • 2014
  • This study investigates drinking attitudes and behaviors of university students. The sample included 355 students living in Busan, Korea. The questionnaire addressed general background information (gender, age, grade and monthly pocket money), drinking attitudes (understanding the effects of alcohol on the body, stereotype of drink, age at the first drink, the drinking companion at the first drink, reasons for starting to drink, main drinking companions, major reasons for drinking, the history of drinking alone, and reasons for drinking alone), drinking behaviors (the cost of each drinking occasion, drinking amounts, the frequency of drinking, the frequency of heavy drinking, the type of alcoholic beverage, and the places of drinking). A few respondents (both male and female students) started drinking while in high school (p<0.05), and most respondents drank with friends (males: 91.0%, female: 92.2%). The main reasons for drinking were the mood for male student (46.3%) and relationships for female student (49.1%) (p<0.05). Male respondents consumed more than seven glasses of soju (39.9%), whereas female respondents, five to seven glasses (49.7%) (p<0.05). On average, the respondents drank one to two times a week (males: 47.9%, females: 51.5%) and experienced heavy drinking one to three times every three months (males: 19.1%, females: 21.0%) (p<.05). The results suggest that students with frequent alcohol consumption and heavy alcohol dependence are likely to face problems and thus require aggressive intervention strategies that target them specifically.

Comparison of Fermentation Characteristics of Korean Traditional Alcoholic Beverages Prepared by Different Brewing Methods and Their Quality Changes after Aging (전통주의 제조방법별 발효 특성 및 숙성후 품질변화 비교)

  • Kim, In-Ho;Park, Wan-Soo;Koo, Young-Jo
    • Journal of the Korean Society of Food Culture
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    • v.11 no.4
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    • pp.497-506
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    • 1996
  • Fermentation characteristics and quality changes of the typical Korean traditional alcoholic beverages (Kwahaju, Sokokju, Baikhaju, Samhaeju and Hosanchun) were investigated during fermentation and after aging, respectively. They were prepared by their own brewing methods with respect to the same contents of rice and Nuruk (Korean-style bran koji). The consumed total sugar content of the alcoholic beverages (Sokokju, Baikhaju, Samhaeju and Hosanchun) which were brewed with the multiple input steps of seed mash and raw material (ABMIS) was higher than that of the alcoholic beverage (Kwahaju) which was brewed with the single input step (ABSIS). The pH values of all the beverages were similar and were ranged from 3.2 to 3.6. The acidity of ABMIS were lower than that of ABSIS, but alcohol concentration of ABMIS were higher. The fermentation period of the alcoholic beverages with triple input steps was the longest among them. The inner temperature and microbial growth in all the beverages increased at each of input steps of the raw materials. Fusel oil content of ABMIS was lower than that of ABSIS. Major components of the fusel oil were iso-amyl alcohol, iso-butanol, n-propanol, ethyl acetate and acetaldehyde, and its minor components were methanol and n-butanol. The results on quality changes of the alcoholic beverages after aging showed increase of alcohol in ABMIS, but decrease of sugar and acidity. Fusel oil contents of Kwahaju and Samhaeju decreased to be ranged from 3.1% to 13.9% after aging, but those of Sokokju, Baikhaju and Hosanchun increased to be ranged from 10.9% to 23.0%. Sensory evaluation of ABMIS showed better scores than that of ABSIS. It was suggested that the brewing method with multiple input steps of seed mash and raw material was one of the methods to increase fermentation efficiency for brewing the Korean traditional alcoholic beverages.

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Inhibitory Effects of Angiotensin Converting Enzyme and α-Glucosidase, and Alcohol Metabolizing Activity of Fermented Omija (Schizandra chinensis Baillon) Beverage (오미자 발효음료의 알코올 분해능과 Angiotensin Converting Enzyme 및 α-Glucosidase 저해효과)

  • Cho, Eun-Kyung;Cho, Hea-Eun;Choi, Young-Ju
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.39 no.5
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    • pp.655-661
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    • 2010
  • The nutraceutical role of fermented omija (Schizandra chinensis) beverage (FOB) was determined through the analysis of fibrinolytic and alcohol metabolizing activities, nitrite scavenging activity, and angiotensin converting enzyme and $\alpha$-glucosidase inhibitory effects. Firstly, FOB increased fibrinolytic activity in a dose-dependent manner and indicated angiotensin converting enzyme inhibitory activity of 94.8% at 20% FOB (0.6 mg/mL). In addition, the inhibitory activities of FOB on $\alpha$-amylase and $\alpha$-glucosidase were determined to be 100% at 100% FOB (3 mg/mL) and 49% at 60% FOB (1.8 mg/mL), respectively. Nitrite scavenging activity of FOB was about 96.1%, 72.3%, and 68.3% on pH 1.2, 3.0, and 6.0 at 100% FOB, respectively. To determine influence of FOB on alcohol metabolism, the generating activities of reduced-nicotinamide adenine dinucleotide (NADH) by alcohol dehydrogenase (ADH) and acetaldehyde dehydrogenase (ALDH) were measured. Facilitating rate of ADH activity was 70.3% at 50% FOB, but ALDH activity was not affected. These results revealed that FOB has a strong alcohol metabolizing activity, and fibrinolytic and nitrite scavenging activities and exhibits the angiotensin converting enzyme, $\alpha$-amylase, and $\alpha$-glucosidase inhibitory activities.

Preparation of Korean Traditional Alcoholic Beverage (Yakju) by a Protoplast Fusion Yeast Strain Utilizing Starch and its Quality Characteristics (전분분해 효모융합체를 이용한 전통 발효주의 제조와 품질특성)

  • Ju, Min-No;Hong, Sung-Wook;Kim, Kwan-Tae;Yum, Sung-Kwan;Kim, Gye-Won;Chung, Kun-Sub
    • Korean Journal of Food Science and Technology
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    • v.41 no.5
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    • pp.541-546
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    • 2009
  • The objectives of this study were to evaluate the physico-chemical and sensory characteristics of a Korean traditional alcoholic beverage (yakju) prepared using different nuruk (Korean-style koji) concentrations and yeasts such as the fusant FA776 and Saccharomyces cerevisiae KOY-1, respectively. The fusant FA776, which has alcohol-fermenting and starch-utilizing properties, was formed by Saccharomyces cerevisiae KOY-1 and Saccharomyces diastaticus KCTC1804. The fermentation trial was conducted in a 5 L lab-scale jar at $25^{\circ}C$. The maximum alcohol production of the K-100 and F-50 reached levels of 135.0 mg/mL and 119.4 mg/mL, respectively. The pH values were in a range of 4.3-4.5. Total acidity was in a range of 0.47-0.60%. Organic acids and amino acids were analyzed in order to evaluate variations in its composition and content via HPLC analysis. Organic acids including lactic acid, citric acid, malic acid, and pyruvic acid, and 16 kinds of amino acids, including aspartic acid, were detected in all treatments. K-100 showed the highest amino acid contents, whereas F-50 exhibited the lowest amino acid contents. Volatile flavor components such as phenylethyl alcohol, isoamyl alcohol, 2-methylthiophane, isobutyl alcohol, and ethyl succinate were detected as a major component in all treatments, as determined via gas chromatography. The results of our sensory evaluation demonstrated that Yakju fermented by the FA776 fusant yielded more favorable results than S. cerevisiae KOY-1.

Development of hangover settlement from natural products

  • Kwon, So-Yeon;Lee, Geum-Ju;Choung, Se-Young
    • Proceedings of the PSK Conference
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    • 2003.10b
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    • pp.106.2-106.2
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    • 2003
  • Hangover is associated with alcohol metabolism in body after the ingestion of an alcoholic beverage. It has been known that hangover is caused by increasing blood acetaldehyde concentration. This study was carried out to evaluate effect against blood ethanol(EtOH) and acetaidehyde(AcH) on the seven natural products samples(Lotus seed, Sweet chest nut rose, Kohki, Gurume-K, Gurume-J, Phytic acid and Chlorophyll). Also, samples which were selected as good products were mixed. Then, effect against blood EtOH and AcH formulas were tested in vivo. (omitted)

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Effects of Mood on the Food Preference of Female University Students (지각된 감정이 여대생들의 음식 선호에 미치는 영향)

  • Lee, Eun-Young;Cho, Mi-Sook
    • Journal of the Korean Society of Food Culture
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    • v.23 no.6
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    • pp.713-719
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    • 2008
  • The purpose of this study was to investigate the food preference and attitude according to six emotions in female university students. Also, it was studied whether the desire to food consumption was changed by each mood. The selfreported questionnaire was used to 285 female university students. There were the significant differences in food preference according to emotions. Pizza & pasta, ice cream and cake were preferred during happiness and amusement. In sadness and anger, alcohol was the most preferred food item. There was the preference of beverage, Jjigae & Baikban, ice cream and snack during relaxation. Chocolate showed the highest preference during depression. The taste and flavor was the main preference attributes during all emotions. The self-assessed food intake during happiness, amusement, anger and relaxation was increased but it was decreased during sadness and depression (p<0.001).

Food and Meal Preference of Workers in the Chonnam Yeosu Industrial Area (전남 여수지역 산업체에 근무하는 근로자의 식품 및 음식의 기호도 조사)

  • Han, Hyun-Mi;Choi, Il-Su;Jung, Bok-Mi
    • Korean Journal of Community Nutrition
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    • v.14 no.4
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    • pp.392-405
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    • 2009
  • This study was conducted to investigate food and meal preference of workers (435 male and 212 female) in the Chonnam Yeosu industrial area. The results of the survey were analyzed by principal components analysis. The results were obtained as follows: 19.3% of the subjects were twenties, 28.3% were thirties, 28.8% were forties and 23.7% were fifties. Females liked rice rolled in dried laver, rice cakes, janchi-noodle and breads, on the other hand males liked thick beef soup, loach soup, an eel stew and soju. The young liked instant noodles, fried chicken, sweet and sour pork, pork cutlet, pizza, hamburger, ham, sausage and fruit beverage, on the other hand the old liked a fish pot stew, loach soup, eel stew, fish boiled in soy with spices, panfried fish, sea slug, ascidian, bunder, green laver and boiled burdock-lotus root in soy. Females who are young liked hamburger and sweet and sour pork whereas males who are young liked instant noodles, pork cutlet, ham, sausage and fruit beverage. Aged females liked fish boiled in soy with spices, panfried fish, bunder, green laver, boiled burdock-lotus root in soy whereas aged males liked a fish pot stew, loach soup, eel stew, sea mussel and oysters. Boiled rice was located within the middle irrespective of age and sex, but noodles, wheat flour meal, fast foods and fruits were situated at the young female side. Aged males liked soup and pot stew. Young males liked meats and eggs whereas fish and shellfish and kimch were located at the aged people side. Aged females liked sea weeds and most people disliked vegetables but females liked some vegetables irrespective of age. Processed foods, salted foods, and alcohol were generally disliked foods by subjects but males liked those foods. Soybean curd was liked more males than females, and teas, except coffee, was liked by males. (Korean J Community Nutrition 14(4) : 392${\sim}$405, 2009)

Exposures of Organic Solvent Mixtures to Rotogravure Printing Workers (일부 그라비아 인쇄업 근로자의 혼합 유기용제 노출농도)

  • Choi, Ho-Chun;Kim, Kangyoon;An, Sun-Hee;Chung, Kyou-Chull
    • Journal of Korean Society of Occupational and Environmental Hygiene
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    • v.7 no.1
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    • pp.71-85
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    • 1997
  • The purpose of this study was to evaluate concentrations of organic solvent mixtures in air of rotogravure printing workplaces. Qualitative and quantitative analysis of organic solvents contained in the gravure inks used at rotogravure factories had been done. The results obtained were as follows: 1. The gravure inks mainly consist of toluene, methyl ethyl ketone(MEK), and ethyl acetate(EA), and traces of isopropyl alcohol(IPA), xylene, 2-butanol, cyclohexane, cellosolve etc were also contained in them. 2. Thinner used as a diluent consist of toluene, MEK, and EA. 3. Geometric mean concentration of toluene in ambient air were 23.81 ppm at gravure printing of packing material, 42.10 ppm at gravure printing of wallpaper, 16.95 ppm at gravure printing of plastic bottle for beverage and 4.31 ppm at gravure printing of plywood printing or floor covering. Concentrations of toluene in ambient air showed statistically significant difference between types of printing. 4. Concentrations of MEK in ambient air were 12.43 ppm at gravure printing of packing material, 5.47 ppm at gravure printing of wallpaper, 16.78 ppm at gravure printing of plastic bottle for beverage and 16.44 ppm at gravure printing of plywood printing or floor covering. MEK concentrations in ambient air showed no significant difference. 5. Conentrations of EA were 14.30 ppm at gravure printing of packing material, 1.92 ppm at gravure printing of wallpaper and 21.12 ppm at gravure printing of plywood printing or floor covering. EA concentrations in ambient air shown significant difference. 6. Percentage of the workplaces where the ambient air concentration of organic solvent mixtures exceeded the Korean Permissble Exposure Level(KPEL) amounted to 18.03%. 7. Toluene concentrations in ambient air of rotogravure printing workplaces ranged from 0.69 to 156.02 ppm and urinary hippuric acid excretion ranged from 0.10 to $1.32g/{\ell}$.

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