• Title/Summary/Keyword: traditional Korean soy sauce

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A Study on the Influence of Social Changes on the Management of Indigenous Fermented Foods in Korean Families (사회변동에 따른 한국고유의 발효식품의 관리의 변화에 관한 연구 - 1960년대 이후의 문헌조사를 중심으로-)

  • 한경선;윤서석
    • Korean journal of food and cookery science
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    • v.7 no.1
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    • pp.1-9
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    • 1991
  • The purpose of this study is to investigate the management of Indigenous fermented foods during the period of economic development starting from 1960 until now, and to specify their correlation, while paying special concern to the variables of social change such as the increase of people's income, ceaseless migration of population, change in the family structure, heightening up of the educational level of women and the resulting increase of chances for getting employment, all of which may affect the management of Indigenous fermerted foods in korean families. The result is as follows. Basic seasonings and dishes such as soy bean sauce, red pepper paste, pickled seafoods, and Kimchi, are inclined to be bought as readymade products or provided by relatives in case of many nuclear families rather than made at home, which is a traditional way of home life. However, Kimchi and basic sauces or redpepper paste still show high rate of being made at home. Social variables which affect such tendency are the number of family members, the age and educational level of housewife, and the type of residence.

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한국재래메주에서 분리한 Scopulariopsis brevicaulis가 생성하는 Protease의 특성 및 작용양상

  • Choi, Cheong;Choi, Kwang-Soo;Kim, Sung;Lee, Seon-Ho;Son, Jun-Ho;Choi, Hee-Jin;Lee, Sang-Seon;An, Bong-Jeon
    • Microbiology and Biotechnology Letters
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    • v.25 no.1
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    • pp.56-61
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    • 1997
  • An alkaline protease producing microorganism was isolated from korean traditional Meju and identified as Scopulariopsis brevicaulis. The optimum culture condition of Scopulariopsis brevicaulis for the production of alkaline protease was as follow: 2% soluble starch, 0.2$, tryptophan, 0.1% (NH$_{4}$) $_{2}$S$_{2}$O$_{8}$ 0.2% NaHPO$_{4}$, pH 7.5, 35$\CIRC $C. The optimum pH and temperature for the enzyme activity of alkaline protease producing Scopulariopsis brevicaulis were pH 9.0 and 50$\circ $C, respectively. The enzyme was relatively stable at pH 6.0~11.0 and at temperature below 40$\circ $C. The activity of the enzyme was inhibited by Hg$^{2+}$ whereas Cu$^{2+}$ gave rather activating effects on the enzyme activity. Phenylmethanesulfonyl fluoride inhibited the enzyme activity. This result indicates that serine is very important role in this enzyme. Km value for casein was 1.2410$^{4}$ M/L, V$_{max}$ value for casein was 25.99 $\mu $g/min. This enzyme hydrolyzed casein more rapidly than the hemoglobin.

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A Study on Growth Condition and Proteolytic Enzyme of Halobacterium halobium (Halobacterium halobium 의 생육조건 및 Protease 에 관한 연구)

  • 민윤식
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.23 no.5
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    • pp.856-862
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    • 1994
  • In salt-preserved foods of every kinds, it was examined the growth condition of halophilic bacteria that induced a change of colour, taste, nutritive substance, a production condition of enzyme and a character of crude enzyme. Used bacteria is H. halobium a kind of extremely halophilic bacteria, and the required of optimum culture needed a quite long time of crude enzyme production is 168 hours. Optimum pH is about 7-7.5, so the traditional food of such neutrality pH as soybean paste and soy sauce particularly come into trouble because the growth can flourish in neutrality or alkaliescence, and the crude enzyme also appeared that best activation between pH 6 and pH 8. The optimum temperature is about 37$^{\circ}C$, the optimum temperature of enzyme is about 40 $^{\circ}C$ and the temperature stability is settled for 15 minutes and it is completely inactivated at 10 minutes. In the influence of each metal ion, Fe++ and Mn++ a stimulated the growth of H.halobium and the activation of enzyme, Cu++ and Zn++ were identified that made the growth and the activation of enzyme inhibit.

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Overexpression and characterization of thermostable chitinase from Bacillus atrophaeus SC081 in Escherichia coli

  • Cho, Eun-Kyung;Choi, In-Soon;Choi, Young-Ju
    • BMB Reports
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    • v.44 no.3
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    • pp.193-198
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    • 2011
  • The chitinase-producing strain SC081 was isolated from Korean traditional soy sauce and identified as Bacillus atrophaeus based on a phylogenetic analysis of the 16S rDNA sequence and a phenotypic analysis. A gene encoding chitinase from B. atrophaeus SC081 was cloned in Escherichia coli and was named SCChi-1 (GQ360078). The SCChi-1 nucleotide sequences were composed of 1788 base pairs and 596 amino acids, which were 92.6, 89.6, 89.3, and 78.9% identical to those of Bacillus subtilis (ABG57262), Bacillus pumilus (ABI15082), Bacillus amyloliquefaciens (ABO15008), and Bacillus licheniformis (ACF40833), respectively. A recombinant SCChi-1 containing a hexahistidine tag at the amino-terminus was constructed, overexpressed, and purified in E. coli to characterize SCChi-1. $H_6SCChi$-1 revealed a hydrolytic band on zymograms containing 0.1% glycol chitin and showed the highest lytic activity on colloidal chitin and acidic chitosan. The optimal temperature and pH for chitinolytic activity were $50^{\circ}C$ and pH 8.0, respectively.

A Study of Food Culture in South-Eastern Asia-about Dietetic Culture in Indonesia- (동남아시아의 식문화(食文化) 연구(硏究)-인도네시아 식생활을 중심으로-)

  • Kim, Heh-Young
    • Journal of the Korean Society of Food Culture
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    • v.7 no.1
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    • pp.9-17
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    • 1992
  • Indonesian dietary life in relation to tradition, customs, variety of food, condiments and spices, processing food and religious way of ceremony was studied through reference books and field trips. The result obtained are as follows: 1. Indonesian food life style has been influenced not only by foreign countries like India, China, Arab and Western countries but also religious commandments of Islamism, Hindusim and Budhism. 2. Indonesia has a wide territory and consist of many islands. Therefore, various food life style can be found in every regional areas. Modern westernized style as well as traditional style coexist together. 3. Chinese has influenced Indonesian food life as well as that of Koreans especially in soy sauce and rice cake. 4. Various type of steamed rice by adding other ingredients can be found in daily life and religious ceremony. 5. Coconut milk, raw spices, pepper are widely & exessively used in cooking and Tempe (soya bean cake) is one of the major protein sources in Indonesia. 6. In religious ceremony, SELAMATAN, various kind and shape of food with different colors symbolize the desire of those who contribute.

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Consumer Consumption Behavior and Preference of Salted Wild Vegetable: A conjoint analysis with Allium victorialis (컨조인트 분석을 이용한 산마늘 절임 제품의 소비자 소비행태 및 선호도 분석)

  • Kim, Ki Dong
    • Journal of Korean Society of Forest Science
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    • v.104 no.1
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    • pp.169-178
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    • 2015
  • The purpose of this study is to obtain the basic information for developing new product and marketing strategies of salted wild vegetable. This study analyzes consumer's consumption behavior and preference on salted Allium victorialis using the conjoint analysis. The result shows that 'Container' is the most important factor among various attributes of salted Allium victorialis, followed by 'Origin of Salting Sauce Soy', 'Price', 'Traditional Food Quality Certification', and 'Area of production'.

Purification and Characterization of a Fibrinolytic Enzyme Produced from Bacillus amyloliquefaciens K42 Isolated from Korean Soy Sauce. (한국재래간장에서 분리한 Bacillus amyloliquefaciens K42가 생산하는 혈전용해효소의 정제 및 특성)

  • 윤경현;이은탁;김상달
    • Microbiology and Biotechnology Letters
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    • v.31 no.3
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    • pp.284-291
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    • 2003
  • Bacillus amyloliquefaciens K-42, which produces strongly a fibrinolytic enzyme, Was isolated from Ganjang, a traditional Korean soy sauce. The fibrinolytic enzyme was purified to homogeneity by ammonium sulfate fractionation, ion-exchange chromatography on DEAE-Sephadex A-50, gel chromatography on Sephadex G-100, and gel chromatography on Sephadex G-75 of the culture filtrate of Bacillus amyloliquefaciens K42. The purified enzyme showed the specific activity of 59.4 units per milligram, which was increased by 17.1 fold over the culture broth. And the molecular weight of purified fibrinolytic enzyme was confirmed to be about 45,000 Dalton by sodium dodecyl sulfate polyacrylamide gel electrophoresis. The enzyme activity was relatively stable at pH 4.0-10.0 and the optimum pH was 8.0. The activity of the purified enzyme was increased by $Mg^{2+}$ , Cu$^{2+}$ but the enzyme was totally inhibited by $Ba^{2+}$ $Hg^{2+}$ In addition, the enzyme activity was potently inhibited by EDTA, EGTA and CDTA. It was concluded that the purified enzyme was a metalloprotease. And Km value was 2.03 mg/ml to fibrin.

Recipe Standardization of Native Local Foods in Gijang Region(The First Report) - Myeolchijjigae, Galchijjigae, Maejipjjim - (기장 향토음식의 조리표준화(제1보) - 멸치찌개, 갈치찌개, 매집찜 -)

  • Kim, So-Mi;Kim, Hyun-Sook;Lim, Jee-Ae
    • Culinary science and hospitality research
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    • v.13 no.3
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    • pp.68-79
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    • 2007
  • The purpose of this study was to contribute to merchandising of native local foods. This study was designed to standardize the recipes and to analyze the nutrients of native local foods in Gijang region such as 'Myeolchijjigae', 'Galchijjigae' and 'Maejipjjim'. The test recipe for each food was prepared according to the information obtained from the personal interview of Gijang natives and then supplied for the sensory evaluation. After that, CAN Pro 2.0 was used for the nutritional evaluation. The results are as follows : Myeolchijjigae was preferred when radishes and traditional soybean paste were added. Galchijjigae was more liked when young pumpkins, mixed soy sauce and soybean paste were added. Maejipjjim was preferred with Aeji(Codium adhaerens), Warty sea squirt(Styela clava), soybean paste and powdered perilla seed(Perilla frutescens var. japonica) added. The analysis of nutrient composition revealed that in general energy content was low whereas protein content was as high as recommended requirement in Myeolchijjigae and Maejipjjim. Calcium and phosphorus were high in Myeol-chijjigae, vitamin A in Galchijjigae, and vitamin A, B_6$, folic acid, phosphorus and iron in Maejipjjim.

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Separation and Purification of Protease from Bacillus subtlils CCKS-111 in Korean Traditional Soy Sauce (한국재래간장으로 부터 분리한 Bacillus subtilis CCKS-111이 생성하는 Protease의 분리 및 정제)

  • Kim, Sung;Lim, Seong-Il;Lee, Hee-Duck;Lee, Seon-Ho;Son, Jun-Ho;Choi, Hee-Jin;Kim, Yeung-Hweal;Choi, Cheong
    • Applied Biological Chemistry
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    • v.40 no.3
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    • pp.178-183
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    • 1997
  • A protease was purified from Bacillus subtilis CCKS-111 by ammonium sulfate treatment, DEAE-cellulose ion-exchange chromatography, Sephadex G-100 gel filtration and high performance liquid chromatography (HPLC). The specific activity of the purified enzyme was 24.3 unit/mg protein and the purification fold of enzyme was 50.6. Molecular weight of the purified enzyme estimated about 28,000 by HPLC gel filtration. The amino acid residues of this enzyme were 251.3 except threonine, serine and glycine. This result was similar to Bacillus subtilis subtilisin DY. From the first N-terminal amino acid to the 32th amino acid, the amino acid sequence was estimated after RP-HPLC elution. N-terminal and the 32th amino acids were alanine and aspartic acid. Alanine, serine, glycine and arginine were four major acids in the enzyme.

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Antimicrobial and Anticancer Activity of Korean Traditional Soy Sauce and Paste with Chopi (초피첨가 전통장류의 항균 및 항암활성)

  • Kim, Keun-Ki;Park, Hyean-Cheal;Son, Hong-Joo;Kim, Yong-Gyun;Lee, Sang-Mong;Choi, In-Soo;Choi, Young-Whan;Shin, Teak-Soon
    • Journal of Life Science
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    • v.17 no.8 s.88
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    • pp.1121-1128
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    • 2007
  • The fruits of Zanthoxylum piperitum are known as having various physiology vitality, and the abstraction ingredient of the pericarp is also known as having strong antibiotic activities against various bacteria. Therefore, this study was carried out to estimate the effect of physiology vitality when the abstraction ingredient of Z. piperitum was added in soy sauce(Chopi-kanjang) and soybean paste(Chopi-doenjang). For the antibiotic activity against the pathogens of sitotoxism such as Staphylococcus aureus, Salmonella typhimurium, Vibrio parahemolyticus, Escherichia coli 0157:H7, the extracts of the Chopi-kanjang was added 1%, 2%, 4% pericarp of Z. piperitum in the manufacturing process of soy source. According to the results, the growth of E. coli 0157:H7 and V. parahemolyticus were respectively inhibited as 70% and 50% by the Chopi-kanjang added 2% of the ingredient. For the antibiotic effects of the aforementioned Chopi-kanjang against Sal. typhimurium and Sta. aureus, the growth of those pathogens was also inhibited between 40% and 60% according to the manufacturing period of Chopi-kanjang. It was confirmed that the antibiotic activity using the mixture of the abstraction ingredient and Chopi-doenjang was lower than those of Chopi-kanjang. In order to estimate the anticancer activity using by caspase-3 activity, the mixture of the abstraction ingredient of the pericarp of Z. piperitum and Chopi-kanjang was treated to leukemia cells. According to the results, the activities of caspase-3 using the mixture added 1%, 2% and 4% of the abstraction ingredient were respectively increased as much as 4, 12, 15 times comparing with the control which was treated with the soy source only. It could be that the mixture of the abstraction ingredient of the pericarp of Z. piperitum and soy source induced apoptosis, and the mixture of the abstraction ingredient and soybean paste had no effect on the activity of caspase-3. In order to find out the death of the aforementioned cells caused by necrosis or apoptosis, DNA fragmentation in the cell was examined. U-937 cells showed apoptotic DNA fragmentation in the incubation with Chopi-kanjang extract.