• Preventive Nutrition and Food Science
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• 제1권1호
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• pp.30-36
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• 1996

This study was conducted to investigate the changes in chemical, microbial, sensory characteristics and volatile flavor components of wooung(burdock, Arctium lappa, L) kimchi during fermentation at 15$^{\circ}C$, Three types(A, B, C) of wooung kimchi were prepared. Sample A was prepared with basic ingredients, in the other hand, sample B was prepared with all sorts of ingredients. These samples were mixed after salting the sliced burdock with 4% brine for 30min. Sample C was prepared mixing with all sorts of ingredients after blanching the sliced burdock with 2% vinegar solution. pH decreased slowly until 3 day, and then decreased rapidly for 4~7 days in all samples. Total acidity increased gradually in all samples. The changes of pH and total acidity were the sample C and were the greatest in sample B. The reducing sugar contents decreased slowly until 7 day, and decreased rapidly for 8~14 days in sample A and B, and at 10 day in sample C, respectively. The numbers of lactic acid bacteria and total bacteria of sample B were much greater than those of other sample. In sensory evaluation, sample B exhibited the best scores and sample C showed the worst scores in all characteristics. The major volatile components in wooung kimchi were identified as ethanol, hexanal, 2-hexenal, disulfide dl- 2-prophenyl, zingiberene and $\beta$-sesquiphellandrene. The relative amounts of hexanal, 1-hexanol and ethanol were decreased, while the relative amounts of acetic acid ethyl ester, 3-htdroxy-2-butanone and acetis acid were increased gradually during fermentation.

• 한국식품영양과학회지
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• 제27권4호
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• pp.618-624
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• 1998

This study was conducted to standardize ingredient ratios of wooung kimchi. The ingredient ratios of model wooung kimchiwere determined by the survey in Pusan and Kyungnam province and using the literatures including cooking books. Several kinds of wooung kimchi were prepared by adjusting the ingredient ratios fo the model wooung kimchi within standard deviation. The wooung kimchi with different ingredient ratios were fermented for 6 days at 15$^{\circ}C$. The chemical, microbial and sensory properties of the wooung kimchi were investigated. There was little change in pH but the counts of lactic acid bacteria were decreased, as the ratio of pickled anchovy juice became high. The wooung kimchi adding 9.4% pickled anchovy juice obtained high score in appearance and overall acceptability. The counts of lactic acid bacteria were increased in wooung kimchi adding 5% red pepper powder, and there was obtained better result in appearance, texture and overall acceptability than the other groups. The activity, reducing sugar and counts of lactic acid bacteria were increased, as the ratio of glutinous rice paste became high. The wooung kimchi including 6% glutinous rice paste showed the highest score in overall acceptability. The fermentation process of wooung kimchi accelerated, as the ratio of garlic became high. The wooung kimchi adding 3% garlic showed good appearance and acceptability. In addition to these, the addition of 1.3% ginger ehhanced the appearance, texture and overall acceptability fermented anchovy juice, 5.0% red pepper powder, 6.0% glutinous rice paste, 3.0% crushed garlic and 1.3% crushed ginger.

• 한국식품영양학회지
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• 제29권6호
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• pp.870-877
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• 2016

본 연구는 손쉽게 가정에서 볶음 처리하여 우엉차와 돼지감자차를 만들어 영양성분과 항산화 활성을 검색하여 다양한 기능성 식품으로 가능성을 보고자 하였다. 볶음 처리한 우엉의 수분, 조단백질, 조지방, 조회분 및 탄수화물 함량은 각각 10.43, 8.50, 1.77, 3.43 및 75.87%로 나타났으며, 볶음 처리한 돼지감자는 각각 10.67, 7.83, 1.23, 2.80 및 77.47%를 보였다. 볶음 처리한 우엉의 수용성 식이섬유소 함량은 4.8 g/100 g, 불용성 식이섬유소 함량은 1.5 g/100 g으로 나타났다. 볶음 처리한 돼지감자의 수용성 식이섬유소 함량은 2.4 g/100 g, 불용성 식이섬유소 함량은 1.6 g/100 g으로 나타났다. 볶음 처리한 우엉과 돼지감자에서 무기질함량 중에서 가장 함량이 높게 나타난 것은 칼륨>마그네슘으로 나타났다. 아미노산을 분석한 결과는 볶음 처리한 우엉은 총 25종이 분리, 동정되었으며, 총 아미노산 함량은 1,382.112 mg/100 g이었고, 필수아미노산 함량은 766.031 mg/100 g으로 나타났다. 볶음 처리한 돼지감자는 총 24종이 분리, 동정되었으며, 총 아미노산 함량은 2,678.018 mg/100 g이었고, 필수아미노산 함량은 157.294 mg/ 100 g으로 나타났다. 볶음 처리한 우엉과 돼지감자의 폴리페놀 함량은 각각 32.56, 29.56 mg GAE/g으로 나타났으며, 플라보노이드 함량은 각각 16.54, 16.71 mg CE/g으로 나타났다. 볶음 처리한 우엉 및 돼지감자의 DPPH 라디칼 소거능의 $IC_{50}$ value은 각각 12.99, 19.74로 나타났으며, 양성대조군인 비타민 C보다는 낮았지만 모두 DPPH 라디칼 소거 활성을 보였다. 볶음 처리한 우엉 및 돼지감자의 hydroxyl radical 소거능의 $IC_{50}$ 값은 각각 25.96, 22.93으로 나타났으며, 양성대조군인 비타민 C보다는 낮았지만 모두 hydroxyl radical 소거 활성을 보였다.