• 한국식생활문화학회지
• /
• 제18권6호
• /
• pp.569-574
• /
• 2003

This study was conducted to investigate the effect of physical properties and antioxidant activities of the beer made by Lycii fructus for development of functional beer. Physical properties such as $Brix^{\circ}$, pH and hunter values were determined and compared with commercial beer. L(lightness) value was not significant difference among beer, although a(redness) and b(yellowness) values were higher in Lycii fructus beer than those of the commercial beer. Total phenolic acid contents were 0.790 mg/mL in Lycii fructus beer and 0.603 mg/mL in commercial beer. Electron donatin ability was 93% in Lycii fructus beer and 87% in commercial beer. Lycii fructus beer showed higher SOD-liked activities than in the commercial beer. The relative antioxidant effects of the Lycii fructus beer showed 19% inhibitory effect on the peroxidation of egg yolk lecithin.

• 한국유기농업학회지
• /
• 제30권1호
• /
• pp.37-50
• /
• 2022

This study analyzes the impact of Import beer demand on Anti-Japanese sentiment. Recently anti-Japanese sentiment heightened by the media was found to be drastically reducing the consumption of Japanese beer in the domestic imported beer market. Thus, the study used the import demand function of imported beer to analyze the impact of the 'Priming Effect' on the consumption of imported beer by anti-national sentiment, indicating a significant drop in Japanese beer consumption in other countries. Therefore, this study used the imported beer import demand function by country to analyze the impact of the priming effect on imported beer consumption according to anti-national sentiment. As a result, in the case of imported beer consumption in other countries, it was estimated that indirect consumption substitution occurred considerably.

• 한국식생활문화학회지
• /
• 제34권3호
• /
• pp.277-283
• /
• 2019

This study explore the market segmentation based on beer consumers' purchase motivation 1) to analyze beer consumers and markets more closely and 2) to demonstrate the characteristics of each market segment and contribute to marketing strategies with beer consumer segment. Using -administrated questionnaires asked questions recognizable beer purchase within 6 months by over 20-years-olds, this study 201 surveys online 22 days. The results as follows: beer consumers' purchase motivation consisted of three factors enhancement, social orientation, and value enhancement. Cluster analysis based on beer purchase showed that there were three groups motivation multi-motivation and motivation group based on average value of beer purchase motive factors and relative load per factor. demographic,beer drinking characteristics and group difference according to cluster gender and monthly average income, and beer drinking characteristics also significantly different by preferred beer, preferred beer type, occasion and drinking place.

• 한국식품영양학회지
• /
• 제11권2호
• /
• pp.143-149
• /
• 1998

한국산 맥주 3가지와 일본산 맥주 21가지의 당함량을 비교 분석하였다. 당함량은 1.71%∼3.93%의 분포를 나타냈으며, 평균 3.15%를 나타냈다. 한국산 맥주는 에탄올 함량 4.5%짜리 뿐으로 평균 당함량은 3.24%, 일본산 에탄올 함량 4.5% 제품은 당함량 2.5%, 에탄올 5% 제품은 당함량 3.2%, 에탄올 5.5% 제품은 당함량 3.15%를 나타냈다. 비발효성 말토올리고당과 한계덱스트린은 평균 2.32%를 나타냈다. 당의 조성은 말토오스 ∼ 말토데카오스, 한계덱스트린까지 균일한 분포를 나타냈다. 그러나 식혜 당화법에서는 말토테트라오스∼말토헵타오스까지의 말토올리고당은 생성되지 않기 때문에 식혜당화법을 사용하면 맥주 제조의 당화율을 증가시킬 수 있다.

• Journal of Applied Biological Chemistry
• /
• 제63권3호
• /
• pp.229-234
• /
• 2020

Beer production with rice or other malt substitutes suffers from a lack of suitable enzymes for saccharification. For this reason, rice nuruk (fermentation starter) was tested as a starch replacement for malt in the saccharification process of beer production. The results of this study show that the enzyme activities of rice nuruk made with brewing fungi were higher than those of malt. Saccharification and glucoamylase activities were high in Aspergillus awamori KCCM 30790 and α-amylase activity was high in Aspergillus oryzae CF1003. Overall, malt beer had significantly higher alcohol, pH, total acid, volatile acids, amino acids, free amino nitrogen, bitterness unit and ΔE than rice nuruk beer. Where as Aspergillus awamori KCCM 30790 beer had significantly higher soluble solids, reducing sugar than malt beer. According to a sensory evaluation, malt beer was better color, flavor and Aspergillus oryzae CF1003 beer was better taste, texture, overall acceptability than other beer. Therefore Aspergillus awamori KCCM 30790 beer was suitable considering enzyme activities (saccharification, glucoalmylase) and physicochemical characteristics (soluble solids, reducing sugar). And then Aspergillus oryzae CF1003 beer was suitable considering sensory evaluation (taste, texture, overall acceptability). Therefore rice nuruk like Aspergillus awamori KCCM 30790 and Aspergillus oryzae CF1003 were suitable as a substitute material that can replace for malt in beer proceccing.

• 한국식생활문화학회지
• /
• 제19권1호
• /
• pp.52-60
• /
• 2004

This study was performed to investigate the effect of Lycii fructus beer on serum lipid profiles and antioxidant activity in rat Sprague-Dawley (SD) rats weighting about 190g were divided into the following 5 groups ; distillate water (Control), 5% ethanol in distillate water (Ethanol), commercial beer (CB), Lycii fructus beer (LFB) and 5% alcohol red wine diluted with distillate water (RW). Body weight, total food intake, FER and percent organ (liver, kidney) weight per body weight were not significantly changed by Lycii fructus beer drinking. After 6 weeks, serum total cholesterol, triglyceride and HDL cholesterol level were not significantly different. But, Lycii fructus beer intake tended to decrease serum triglyceride level and atherogenic index. Also, GOT and GPT levels were expressed lower than Ethanol group. There was not significantly different in hepatic glutatiione (GSH) content and glutathione-S-transferase (GST) activities among 5 groups. Lipid peroxidation in the hepatic was decreased by Lycii fructus beer intake. The results demonstrated that Lycii fructus beer was potential and effective antioxidant that can protect the decrease associated with alcohol.

• 한국식품영양학회지
• /
• 제11권2호
• /
• pp.150-158
• /
• 1998

한국산 맥주 3종류, 일본산 맥주 21종류의 한계 덱스트린을 에탄올 침전법으로 분리하였다. 한계 덱스트린의 양은 평균 1.1%로 전체 당 3.15%의 34.5%를 나타냈다. FPLC 분석 결과 한계 덱스트린은 평균 글루코오스 잔기 25개 정도로 형성된 것으로 나타났다. 1H-NMR 분석으로 한계 덱스트린의 $\alpha$-1, 4-결합에 대한 $\alpha$-1, 6-결합의 비율은 평균 1:0.183을 나타냈다. 한계 덱스트린을 $\alpha$-아밀라아제와 $\alpha$-글로코시다아제로 5시간 가수분해 하여 소화성을 평가한 결과 평균 57.22% 가수분해 되었다. 그 중 한국산 맥주의 한계 덱스트린이 가장 높은 소화성 70.38%를 나타냈다. 아밀라아제로 소화된 부분과 에탄올 침전법으로 상징액으로 제거된 작은 당을 합하면 평균 86%가 소화성 당으로, 14%가 비피두스균 증식 인자로 평가된다.

• 한국정보시스템학회지:정보시스템연구
• /
• 제30권2호
• /
• pp.189-214
• /
• 2021

Purpose This paper aims to effectively utilize user-generated content (UGC) and analyze the market structure of a relatively new market which lacks rich user review information. Specifically, we propose a domain-specific text mining tool for the domestic craft beer market and visualize the market structure by incorporating how individual beer products are positioned in the perceptual map of consumers. Design/methodology/approach We collect user review information from Naver blogs, and extract words that describe beers. We identify semantic relationships between beer products through text mining, and then depending on these semantic relationships, construct a graph representing the market structure of the domestic craft beer market based on the consumer's perceptual map. Findings First, beer products produced in the same brewery are perceived as very similar to consumers. Second, only two products, 'Heukdang Milky Stout' and 'Gompyo', was noticeably distinguishable from other products. Third, even though 'Gyeongbokgung' is from a different brewery, it is located very close to the products of 'Jeju Beer' brewery such as 'Jeju Baeknokdam Ale' and 'Seongsan Ilchulbong Ale', which suggests the influence of 'landmark series.' We successfully show that our methodology effectively describes the market structure of the craft beer market.

• 한국식품과학회지
• /
• 제52권3호
• /
• pp.296-303
• /
• 2020

Hop-resistant lactic acid bacteria (LAB) are well-known, major beer-spoilage bacteria. The hop-gradient agar containing ethanol (c-HGA+E) method has been used to examine hop-resistance of beer-spoilage LAB. However, the selection of beer-spoilage bacteria by the c-HGA+E method is either too selective or too inclusive. Furthermore, it is accompanied by a complicated experimental procedure, high-cost and time. To overcome these disadvantages, the modified hop-gradient agar with ethanol (m-HGA+E) method was developed. The most remarkable modifications were the shape of the petri dish and the inoculation method for bacteria. The efficiency and validation of the m-HGA+E approach were proven by the formation of colonies at different hop concentrations in the bottom layer, co-culture with the bacteriocin producer and by PCR detection of hop-resistant genes. This study demonstrated that m-HGA+E is a rapid, economical, and easy method to monitor potential hop-resistant beer-spoilage LAB during the beer brewing process.

• 미생물학회지
• /
• 제54권4호
• /
• pp.379-383
• /
• 2018

맥주는 가장 대중적인 알코올 발효주이지만 퓨린(purine) 함량이 높아 고요산혈증 및 통풍 발생과 연관이 있다고 알려져 있다. 본 연구에서는 맥주 발효 온도를 달리함으로써 맥주의 퓨린 함량을 낮출 수 있는지 알아보았다. 맥주 제조의 주된 발효법인 상면 발효와 하면 발효에서 주로 사용되는 $20^{\circ}C$와 $10^{\circ}C$ 온도에서 맥주를 발효한 후, 각각에서 대표적 퓨린 화합물인 adenine, guanine 그리고 xanthine들의 함량을 high performance liquid chromatography 방법으로 측정하였다. 그 결과, $10^{\circ}C$ 발효 맥주가 $20^{\circ}C$ 발효 맥주에 비해 총 퓨린 함량이 낮았으며, 특히 adenine의 함량이 의미있게 낮아져 있음을 확인하였다.