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지설희(Seol-Hee Ji),한우철(Woo-Cheul Han),이재철(Jae-Cheol Lee),김병완(Byong Wan Kim),장기효(Ki-Hyo Jang) 한국식품과학회 2009 한국식품과학회지 Vol.41 No.2
생약소재를 사용한 약주개발을 위하여 탄소원이 풍부하고 anthocyanin 등의 생리활성 물질이 풍부한 머루와 항산화능이 우수한 해당화를 함께 사용하였다. 해당화와 머루액의 혼합비율을 4가지로 달리하여 제조 후 14일 발효와 다시 14일간 숙성기간을 거쳐서 해당화-머루주를 만들었다. 머루액의 함량이 높은 그룹에서는 빠른 발효속도를 보였으며, 최종적으로 ethanol 함량도 높게 나타나는 경향이었으며, 특히 anthocyanin 함량이 높았다. 머루주는 anthocyanin 함량과 색도가 지나치게 높을 뿐만 아니라, 높은 산미로 인해 기호성을 저하시키는 원인이 된다. 해당화즙의 첨가는 머루주의 anthocyanin 함량, 색도와 산미를 저하시키는 효과가 있는 것으로 나타나, 머루주의 기호성을 증가시키는 효과가 있을 것으로 기대된다. 아미노산 분석결과는 머루주 성분에는 신맛과 쓴맛을 부여하는 아미노산의 비율이 높고, 상대적으로 단맛과 관련된 아미노산은 낮으므로 최종제품을 인위적으로 특정 아미노산을 첨가하는 방법 등이 고려할 만한 방법으로 생각된다. Four different mixing ratios of Rose rugosa Thun and Vitis amurensis (Moru) were prepared. These included Rose rugosa Thun two vs. Moru one (Moru 33), Rose rugosa Thun one vs. Moru two (Moru 67), Rose rugosa Thun one vs. Moru five (Moru 83), and Moru (Moru 100). Their physiochemical changes were investigated during 28 days of fermentation followed by aging. The final brix, pH, and total titratable acidity values of the four experiments were in the following ranges: 6.0-8.2°Bx, 3.87-4.03, and 0.94-1.18%, respectively. Final ethanol contents were 6.5% in Moru 33, 11.8% in Moru 67, 11.1% in Moru 83, and 11.4% in Moru 100. As the amount of Rose rugosa Thun increased, anthocyanin content, color intensity, organic acid, and free amino acid concentrations were reduced. These findings demonstrate that the supplementation of Rose rugosa Thun to Moru prior to alcohol fermentation may help change the acidity, colour, and taste in the final product.
한우철(Woo-Cheul Han),지설희(Seol-Hee Ji),서정희(Jeonghee Surh),김미현(Mi-Hyun Kim),이재철(Jae-Cheol Lee),장기효(Ki-Hyo Jang) 동아시아식생활학회 2010 동아시아식생활학회지 Vol.20 No.4
Production of vinegar by fermentation using Rubus crataegifolius (Korean raspberry) and Rosa rugosa Thunb (Haedanghwa) were investigated. At the first step, ethanol fermentation performed for 12 days on Haedanghwa wine containing 17.6oBrix sugar concentration, 6.2% ethanol concentration, and pH 2.9, and on Korean raspberry-Haedanghwa wine containing 7.0oBrix sugar concentration, 11.4% ethanol concentration, and pH 3.4. In the second step, after supplementation of 1% acetic acid to Haedanghwa wine and Korean raspberry-Haedanghwa wine which adjusted their ethanol concentration to 6%, aerotropic acetic acid fermentation was carried out using Acetobacter aceti at 30℃ and 200 rpm for a period of 12 days. Korean raspberry-Haedanghwa vinegar contained a 3.7% concentration of acetic acid. Total phenolic compounds and color in Korean raspberry-vinegar was higher than that in Rosa rugosa Thunb vinegar. This result demonstrates that use of Korean raspberry and Haedangwha mixture for vinegar fermentation improves the color and taste of the final product.
한우철(Woo-Cheul Han),지설희(Seol-Hee Ji),서정희(Jeonghee Surh),김미현(Mi-Hyun Kim),이재철(Jae-Cheol Lee),김승호(Seung Ho Kim),장기효(Ki-Hyo Jang) 동아시아식생활학회 2010 동아시아식생활학회지 Vol.20 No.2
Two different mixing ratios of Rosa rugosa and Rubus crataegifolius (Korean raspberry), including Rosa rugosa and one part Rosa rugosa vs five parts Rubus crataegifolius were prepared, and their fermentation characteristics were investigated during 28 days of ethanol fermentation and subsequent aging. The final °Brix and pH of Rosa rugosa wine were 12.0 and 2.9, respectively, while those of Korean raspberry-Rosa rugosa wine were 7.0 °Brix and pH 3.4, respectively. The final ethanol contents were 5.0% (v/v) in Rosa rugosa wine and 9.8% in Korean raspberry-Rosa rugosa wine. The level of antocyanine content, color intensity, organic acid, and free amino acid concentrations in Rosa rugosa wine were lower than those of Korean raspberry-Rosa rugosa wine. Thus, our results demonstrate that supplementation of Rosa rugosa with Korean raspberry prior to alcohol fermentation may help improve the fermentation characteristics of Rosa rugosa wine in the final product.
이동호(Dong Ho Lee),지설희(Seol-Hee Ji),한우철(Woo-Cheul Han),이재철(Jae-Cheol Lee),강순아(Soon Ah Kang),장기효(Ki-Hyo Jang) 동아시아식생활학회 2012 동아시아식생활학회지 Vol.22 No.3
This study aimed to evaluate the physiochemical properties and fermentation qualities of kimchi supplemented with yacon (Smallanthus sonchifolius) during fermentation. Kimchi supplemented with 0%, 0.1%, 0.5%, 1%, and 5% yacon were investigated. As fermentation proceeded, pH decreased from 5.5~5.7 on the first day to 4.6~4.8 on day 21, whilst total titratable acidity (TTA), lactate levels, and number of microbes increased. The kimchi with 5% yacon showed a higher production of lactate concentration at 7 days fermentation than other groups, which is consistent with the observed high numbers of viable Leuconostoc sp. cells at 7 days fermentation. These observations demonstrate that 5% yacon stimulates the growth of kimchi microbes, particularly of Leuconostoc sp..
약용 식물을 첨가한 머루주의 이화학적 특성과 발효 품질 평가
이제혁(Je-Hyuk Lee),강태호(Tae-Ho Kang),엄병헌(Byung-Hun Um),손은화(Eun-Hwa Sohn),한우철(Woo-Cheul Han),지설희(Seol-Hee Ji),장기효(Ki-Hyo Jang) 동아시아식생활학회 2012 동아시아식생활학회지 Vol.22 No.6
For the development of Moru wine with enhanced sensory qualities, Moru (Vitis amurensis) wines were fermented with pine needles from Pinus densiflora Siebold et Zuccarini to make Moru-pine wine or medicinal herbs from Astragali Radix and Viscum album to make Moru-herb wine. Moru without pine needles or medicinal herbs was included as a control. Pine needles and Astragali Radix/Viscum album delayed the fermentation of Moru wine, but after 40 days of fermentation and aging, final ethanol contents, pH, acidity, and the sugar/organic acid content in these kinds of Moru wines had no differences. The final ethanol level and acidity of Moru wines were 11.5~12.9% and 1.1~1.2%, respectively, but any sugars (glucose, fructose and sucrose) were not detected in all Moru wines. These results are consistent with the general characteristics of Moru wines, which have a high acidity and low sugar contents. Relatively low browness and antocyanins were detected in Moru-herb wine decreasing its chromaticity in a sensory test. Overall, the supplements of Astragali Radix/Viscum album reduced the color of normal Moru wine, which might be applied toward the development of conventional Moru wines.