• 한국식품영양과학회지
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• 제32권3호
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• pp.346-349
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• 2003

김치에 고춧가루, 소금, 젓갈 등의 첨가량을 달리하여 김치의 관능적 특성 변화를 살펴보았다. 김치의 염도가 2%가지는 신맛과 매운맛이 강하였지만 그 이상의 염농도에서는 신맛, 매운맛, 단맛, 감칠맛 등을 억제하였고 고춧가루를 첨가하여 매운맛이 상승함에 따라 3%까지는 신맛은 비례하여 증가하였지만 그밖의 짠맛, 단맛, 감칠맛은 억 제시 켰으며 젓갈 첨가는 감칠맛의 상승과 함께 짠맛과 단맛을 상승시켰으나 매운맛과 신맛은 억제하였다. 이상과 같은 조미료 및 향신료의 맛과 김치 맛을 일원일차 상관분석을 통해 알아본 결과 소금의 짠맛은 매운맛, 신맛, 단맛, 감칠맛과 각각 -0.9857, 0.9878, -0.9847, -0.9076을, 또 고추의 매운맛은 신맛, 단맛, 짠맛, 감칠맛과 각각 0.8353, -0.9316, -0.9020, -0.9901로 모두 유의적인 음의 상관관계를 나타내어 김치의 매운맛과 짠맛의 상승은 김치의 전반적인 맛을 억제시켰다. 한편 감칠맛은 매운맛과만 유의적인 음의 상관관계를 보였고 단맛과 짠맛과는 유의적인 양의 상관관계를 보여 매운맛과 짠맛과는 다른 경향을 보였다.

• 한국식품저장유통학회지
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• 제9권2호
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• pp.161-167
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• 2002

송이를 첨가한 김치를 제조하여 1$0^{\circ}C$에서 저장하면서 숙성 중 관능적 특성 변화를 반응표면분석으로 조사하였다. 김치의 관능점수는 저장 4일과 8일경에 가장 높았고 12일에는 낮아졌다. 담금 직후에는 송이함량이 높을수록 모든 관능점수가 낮았으나, 향과 맛만은 송이함량과 고춧가루함량이 동시에 높을 경우 높았다. 저장 4일째는 색상, 향, 맛 및 전반적인 기호도가 높았는데 특히 송이함량 5.0-6.0% 및 고춧 가루함량 3.0-3.5%에서 가장 우수하였고, 저장 8일째에는 씹힘성이 우수하였다. 송이를 첨가한 김치는 1$0^{\circ}C$에서 4-8일 저장한 경우 관능적으로 우수하게 나타났다.

• 한국식품저장유통학회지
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• 제10권3호
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• pp.288-292
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• 2003

GFSE 분말제재를 절인 배추에 대하여 0.1％, 0.3％ 및 0.5％씩 첨가하여 김치를 만들고 10％에서 숙성하면서 pH, 적정산도, 환원당 함량, 총균수, 젖산균수와 같은 품질 특성을 조사하였다. 숙성 기간이 경과함에 따라 김치의 pH는 감소하였는데, 대조구와 GFSE 분말제재 0.1％ 첨가구, 0.3％와 0.5％ 첨가구는 서로 비슷한 경향을 나타내었다. 대조구는 숙성 5일의 pH가 4.20으로 김치의 숙성 적기로 판단되는 범위에 도달하였는데, 0.5％ 첨가구는 숙성 30일까지 도달하지 않았고, 0.3％ 첨가구는 숙성 25일에 pH 4.19였다. 적정산도는 김치의 숙성 기간이 경과함에 따라 계속 증가하였으며, 시험구간의 변화 경향은 pH와 유사하였다. 환원당 함량은 김치의 숙성과 더불어 감소하였으며, 대조구와 GFSE 분말 제재 0.1％ 첨가구는 숙성 10일까지 급격히 감소하였고 그 이후에는 큰 변화를 나타내지 않았다. GFSE 분말제재 0.3％, 0.5％ 첨가구의 환원당 함량 감소는 비교적 완만하였으며, 숙성 전 기간에 걸쳐서 감소하였다. GFSE 분말제재는 김치의 담금 직후 총균수와 젖산균수를 낮추는 작용을 하였으며, 숙성 기간 중에도 젖산균의 증식을 억제하였다. 특히 GFSE 분말 제재 0.5％ 첨가구는 숙성 20일 이후에 젖산균수가 급격하게 줄어들었고, 30일에는 다른 시험구보다 2log(CFU/mL) 이하 낮았다.

• 한국식품저장유통학회지
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• 제7권2호
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• pp.222-227
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• 2000

Antimutagenic activity of crushed kimchi fermented with starter under various conditions such as temperature(5-20$^{\circ}C$), salt concentration(2-10%), addition rate of starter (0-20%) was investigated. The kimchi was fermented with crushed Chinese cabbage without salting, red pepper powder, crushed garlic, crushed ginger, anchovy juice and starter. Well fermented kimchi juice(fermented at 10$^{\circ}C$ for 15 days) and sterilized radish juice was used as a source of lactic acid bacteria and starter medium, respectively. Antimutagenic activity showed the highest in the crushed kimchi fermented at 15$^{\circ}C$ for 15 days, 4% salt concentration, 5% starter added, respectively. The inhibition rate of mutagenic activity of the kimchi against S. typhimurium TA98 induced by NQO and S. typhimurium TA100 induced by MNNG was 56.41% and 60.11%, respectively. And the inhibition rate of the kimchi juice showed 56-60% per 100ul.

• Journal of Microbiology and Biotechnology
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• 제26권6호
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• pp.1057-1062
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• 2016

Kimchi is a traditional Korean fermented vegetable food, the production of which involves brining of Korean cabbage, blending with various other ingredients (red pepper powder, garlic, ginger, salt-pickled seafood, etc.), and fermentation. Recently, kimchi has also become popular in the Western world because of its unique taste and beneficial properties such as antioxidant and antimutagenic activities, which are derived from the various raw materials and secondary metabolites of the fermentative microorganisms used during production. Despite these useful activities, analysis of the microbial community present in kimchi has received relatively little attention. The objective of this study was to evaluate the bacterial community structure from the raw materials, additives, and final kimchi product using the culture-independent method. Specifically, polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE) was used to analyze the 16S rRNA partial sequences of the microflora. One primer set for bacteria, 341F^GC-518R, reliably produced amplicons from kimchi and its raw materials, and these bands were clearly separated on a 35-65% denaturing gradient gel. Overall, 117 16S rRNA fragments were identified by PCR-DGGE analysis. Pediococcus pentosaceus, Leuconostoc citreum, Leuconostoc gelidum, and Leuconostoc mesenteroides were the dominant bacteria in kimchi. The other strains identified were Tetragenococcus, Pseudomonas, Weissella, and uncultured bacterium. Comprehensive analysis of these microorganisms could provide a more detailed understanding of the biologically active components of kimchi and help improve its quality. PCR-DGGE analysis can be successfully applied to a fermented food to detect unculturable or other species.

• 한국조리학회지
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• 제7권3호
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• pp.35-44
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• 2001

김치가 첨가된 수프를 제조하기 위하여 1$0^{\circ}C$에서 10~15일 숙성된 김치를 동결 건조하여 수프 제조에 사용하였다. 수프는 밀가루를 17$0^{\circ}C$의 오븐 속에서 2시간 동안 볶아 갈색을 낸 후 1,000 g을 계량하여 버터 140 g을 혼합하고 고운 체에 내려 쇠고기와 생강, 마늘, 양파 등의 야채와 수분이 있는 재료는 후라이팬에 볶아 익힌 후 수분을 제거하여 김치수프를 제조하였다. 관능검사의 결과에서는 대조군에서 버터향이 고소하고 부드러운 맛에 영향을 나타내었으나 전반적으로 김치 분말 20%를 첨가한 시험구에서 맛, 색, 향의 기호도가 최적점을 나타내었으므로, 김치수프를 만드는데는 김치를 1$0^{\circ}C$에 저장하면서 2주정도 경과한 김치를 동결건조 한 다음 분말화하여 건조 김치채와 분말 20% 첨가하는 것이 가장 적당하였다.

• 한국식품저장유통학회지
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• 제6권3호
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• pp.339-344
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• 1999

김치의 향미개선 및 게껍질 분말 첨가김치의 부미를 제거하기 위한 향미개선제로서 우골추출물의 첨가효과를 검토하였다 우골추출물은 김치의 숙성중 pH와 산도, 총균수, 젖산균비, Leuconostoc과 Lactobacilli의 수에는 큰 영향을 미치지 못하였으나 산미와 김치냄새를 감소시키고 종합적 맛을 개선시키는 향미 개선제로서의 역할을 하였다. 또 우골추출물(0.03%)을 게껍질분말(1.5%)과 함께 첨가할 경우는 게껍질분말만을 첨가한 경우보다 높은 pH를 유지하는 한편 완충효과가 증가되었으며 젖산균비가 높아졌다. 관능검사에 의하여 평가한 결과 게껄질분말을 단독으로 첨가한 경우보다 우골추출물을 병용하여 첨가한 김치에서 비린 맛이 낮아졌으며, 아삭아삭한 맛과 종합적인 맛은 숙성전반에 걸쳐 높게 나타났다.

• 한국식품영양과학회지
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• 제29권5호
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• pp.796-801
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• 2000

Kimchi is the Korean traditional food which is fermented properly from salted Korean cabbage of raddish with other various supplements. Kimchi therefore can be the major sources for various kinds of nutrients and other biological substances. The fermentation process accompanies with complicated reaction mechanism which bacteria, fungi and yeast are involved and they produced aroma, taste and bioactive components. To identify nucleoside, this study was conducted with freeze-dried mustard leaf, mustard leaf kimchi and fermented mustard leaf kimchi. Hexane, CH$_2$Cl$_2$, EtOAc and BuOH was used in order to extract their components. The isolated compounds I and II from mustard leaf and mustard leaf kimchi were identified as adenosine and uracil using UV, $^{1}H$-NMR, $^{13}C$-NMR and LC-MS, respectively. Compound I, II and nucleosides are the first report of its occurrence from mustard leaf and their kimchi, the standardized ratios of ingredients for kimchi were 10 of anchovy juice, 8 of red pepper powder, 3 of garlic, 1.5 of ginger, 6 of paste of glutinous rice. The nucleoside of mustard leaf and their kimchi was determined and compared. The order of nucleosides contents of mustard leaf was uridine>cytosine>uracil>adenine>guanosine>guanin, that of fresh mustard leaf kimchi was uridine>uracil>cytosine>guanine>adenosine>adenin>guanosine and that of fermented mustard leaf kimchi (5days at 15$^{\circ}C$) was guanine>adenine>adenosine>guanosine. The differences of nucleoside contents from those were due to various supplements and fermentation process.

• 동아시아식생활학회지
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• 제18권4호
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• pp.507-515
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• 2008

This study investigated the standard recipe and changes in the quality characteristics of Chungkukjang-Kimchi (CKK) and evaluated its acceptance by elementary school students. The acceptability of Kimchi among elementary school students was evaluated by monitoring the plate waste rate. Chungkukjang powder was added to the Kimchi recipe at 0, 20, 40, 60% of the total weight of red pepper powder. The pH of the CKK decreased as fermentation proceeded, and the total acidity was $0.24{\sim}0.25%$ in all samples. The salinity of the CKK was 2.32%. The L color value was significantly lower in the treatment groups than in the control group. The b and a color values increased in the beginning, but tended to decrease during fermentation. In the sensory evaluation, there was no significant difference in appearance on preparation day, but there were significant differences on the 6th (p<0.05) and 20th days (p<0.01), with the highest scores observed in the 40% added group. Sourness increased significantly (p<0.001) during fermentation in all samples. There were significant differences (p<0.001) in crispness on the 3rd day among the treatment groups, and it tended to decrease as fermentation progressed. There were significant differences in flavor during the early stage (p<0.001), but there were no differences as fermentation proceeded. Overall acceptability was high in the 40% added group. Evaluation of acceptability by monitoring the plate waste rate in the school dining room showed that acceptability was highest in the 20% added group. Thus, it was concluded that acceptability among elementary school students was highest for CKK from the 20% Chungkukjang group.

• Nutrition Research and Practice
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• 제13권2호
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• pp.87-94
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• 2019

BACKGROUND/OBJECTIVES: Oxidative stress is a major effector of various diseases; accordingly, antioxidants are frequently ingested in order to prevent or alleviate disease symptoms. Kimchi contains various natural antioxidants, and it is known that the functional activity varies depending on the ingredients and fermentation state. Black raspberries (BR) contain various bioactive compounds with antioxidant effects. This study investigated the antioxidant and liver-protection effects of kimchi supplemented with black raspberry juice powder (BJP). MATERIALS/METHODS: BJP-added kimchi (BAK; at 0.5%, 1%, and 2% concentrations of BJP) and control (without BJP) were prepared and fermented at $4^{\circ}C$ for 4 weeks. Changes in the antioxidant effects of BAK during fermentation were investigated. In addition, the protective activity of BAK against oxidative stress was investigated in a liver cirrhosis-induced animal model in vivo. RESULTS: BAK groups showed the acidity and pH of optimally ripened (OR) kimchi at 2 weeks of fermentation along with the highest lactic acid bacterial counts. Additionally, BAK groups displayed a higher content of phenolic compounds and elevated antioxidant activities relative to the control, with the highest antioxidant effect observed at 2 weeks of fermentation of OR 1% BAK. After feeding the OR 1% BAK to thioacetamide-induced liver cirrhosis rats, we observed decreased glutamate oxaloacetate transaminase and glutamate pyruvate transaminase activities and elevated superoxide dismutase activity. CONCLUSIONS: These findings showed that the antioxidant effects of OR BAK and feeding of OR 1% BAK resulted in liver-protective effects against oxidative stress.