• Title/Summary/Keyword: Fermented Foods

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Study of Crataegi Fructus for Medicinal Foods Applications -Nutrition Composition and Scheme for Foods- (Medicinal food로 활용하기 위한 산사(山査)에 관한 연구(1) -활용 형태에 따른 영양학적 특성 및 식품으로의 활용방안 모색-)

  • Chon Jeong-Woo;Park Sung-Jin;Han Jong-Hyun;Park Sung-Hye
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.19 no.5
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    • pp.1220-1224
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    • 2005
  • Crataegi Fructus has often been cited in medical literature for its medicinal effects. The purpose of this study was to investigate the possibility of Crataegi Fructus application as an edible medicinal (nutritional supplement) food resource. In this study, Crataegi Fructus, which has been used in oriental medicine and folks remedy, was investigated to characteristics of nutritional composition(protein, lipid, ash, fiber, free sugar and minerals). The approximate composition of low Crataegi Fructus was crude protein, 0.26%, crude lipid, 0.30% and crude ash, 0.66%. And total dietary fiber 5.60%(insoluble 4.66%, soluble 0.94%), contents of glucose and fructose were 5.02mg% and 6.21 mg%, Nutritional composition of fermented liquid was crude protein 0.24%, crude lipid, 0.03%, crude ash, 0.53% and total dietary fiber, 0.24%. And glucose, fructose contents were 14.77mg% and 7.30mg%. The other hand, nutrition contents in water extract of Crataegi Fructus were significantly lower than low Crataegi fructus and fermented liquid. The above results showed that Crataegi Fructus and fermented liquid have sufficient values to use as a food stuff for medicinal food and nutritional supplement.

Antioxidant Production by Bacillus methylotrophicus Isolated from Chungkookjang, Korean Traditional Fermented Food (한국 전통발효식품인 청국장에서 분리한 Bacillus methylotrophicus에 의한 항산화물질의 생산)

  • Lee, Na-Ri;Woo, Ga-Young;Jang, Jun-Hyeok;Lee, Sang-Mee;Go, Tae-Hun;Lee, Hee-Sup;Hwang, Dae-Youn;Son, Hong-Joo
    • Journal of Environmental Science International
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    • v.22 no.7
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    • pp.855-862
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    • 2013
  • Although antioxidant activities of Korean traditional fermented foods were reported by many researchers, study on antioxidant activity of microorganism originated from Korean traditional fermented foods was little. Therefore, we improved condition for antioxidant production by a bacterium isolated from home-made Chungkookjang. We selected a bacterial strain, which showed the highest antioxidative activity, from Chungkookjang and then named GJ. The selected GJ strain was identified as Bacillus methylotrophicus by alignment data of 16S rRNA gene nucleotide sequences. Improved medium compositions for DPPH radical scavenging activity were 0.25% sucrose, 1% peptone, 0.01% $MgSO_4{\cdot}7H_2O$ and initial pH 6.5, respectively. Optimal culture conditions were $30^{\circ}C$, 200 rpm and 4% inoculum volume, respectively. In improved conditions, DPPH radical scavenging activity of GJ reached to 91% in a short time. The strain GJ also possessed ACE inhibition and other antioxidative activities; ACE inhibition activity (49.4%), ABTS radical scavenging activity (99.8%), metal chelating activity (67.9%), SOD-like activity (36.5%) and reducing power ($A_{700}$ = 5.982) were observed, respectively. Therefore, our results suggest that B. methylotrophicus GJ strain may be potential candidate for functional foods, cosmetic products for anti-aging and medicine for diseases caused by oxidative stress.

The Content of Ascorbic acid in Fruit Milks and Fruit Yogurts (과실(果實)이 첨가(添加)된 우유(牛乳) 및 Yogurt중(中)의 Vitamin C 함량(含量) 측정(測定))

  • Park, Kui-Sun
    • Journal of Nutrition and Health
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    • v.13 no.4
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    • pp.195-198
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    • 1980
  • The contents of ascorbic acid in milk and fermented milk, yogurt added with fruits were determined by 2.6-dichlorophenol indophenol method using a Spectrophotometer. Threes sample of fruit milks and three of fruit yogurts were collected from the several markets in Busan City. The amounts of the vitamin as the reduced form were 0.16 mg/100m1 of strawberry milk, 0.31mg/100m1 of orange milk, and 0.08mg/100m1 of banana milk. The vitamin was not detected from the fermented fruit yogurt samples.

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Ohmic Heating Characteristics of Fermented Soybean Paste and Kochujang (된장 및 고추장의 Ohmic heating 특성)

  • Cho, Won-Il;Kim, Do-Un;Kim, Young-Suk;Pyun, Yu-Ryang
    • Korean Journal of Food Science and Technology
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    • v.26 no.6
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    • pp.791-798
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    • 1994
  • Ohmic heating is a food processing operation in which heat is internally generated within foods by the passage of alternating electric current. The process enables highly viscous paste foods such as Kochujang, and fermented soybean paste to be heated very fast. In order to develope the novel pasteurization process of paste foods, static Ohmic heating system was built, and heating characteristic during Ohmic heating under various conditions were studied. Electric conductivities of Kochujang and fermented soybean paste at room temperature were 1.865 S/m and 2.510 S/m, respectively and increased linearly with increasing temperature. Specific heating rate was highly dependent on the frequency. The highest heating rate was achieved at 5 KHz for Kochujang and 20 KHz for fermented soybean paste. Uniform heating throughout the sample was achieved during Ohmic heating with low frequency electrical currents, however above 5 KHz frequency, surface temperature was several degrees higher than the bulk.

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Antioxidant and Nitrite Scavenging Ability of Fermented Soybean Foods (Chungkukjang, Doenjang) (청국장과 된장의 항산화 효능 및 아질산염 소거능 비교)

  • Oh, Hyun-Ju;Kim, Chang-Soon
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.36 no.12
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    • pp.1503-1510
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    • 2007
  • This study was carried out to investigate antioxidant substances (phenolic compounds and brown pigment), antioxidative effect and nitrite scavenging ability (NSA) of solvent extracts (hexane: HE, methanol; ME, water: WE) from fermented soybean foods, Chungkukjang and Doenjang. The antioxidant activities were determined by the measurements of peroxide value (POV) on the linoleic acid system, electron donating ability (EDA) and superoxide dismutase (SOD)-like activity. The contents of phenolic compounds and total brown pigments in Doenjang were $28.5{\pm}0.3mg/100g$ and optical density (OD) $1.98{\pm}0.03$, respectively, whereas their contents in Chungkukjang were significantly lower with $5.8{\pm}0.3mg/100g$ and OD $0.95{\pm}0.02$. The brown pigment contents of hydrophilic extracts increased more than that of lipophilic extracts through the fermentation and ripening processes. The ME of Doenjang exhibited higher inhibitory effects against the peroxidation of a linoleic acid system than that of Chungkukjang. The EDA and NSA of MEs were higher than those of WEs. Among the MEs, Doenjang showed the highest levels of EDA and NSA. On the other hand, the SOD-like activities of WE were higher than those of ME at the same concentrations and their activities of Doenjang were significantly higher than that of Chungkukjang. In conclusion, the antioxidative effects and NSA of Doenjang was significantly higher than those of Chungkukjang. It seemed that phenolic compounds and brown pigments formed during fermentation and ripening partly affect the antioxidative activities of fermented soybean foods.

Nitrate and Nitrite Content of Some Fermented Sea Foods and Vegetables (시판젓갈류와 채소류중의 질산염 및 아질산염함량)

  • LEE Eung-Ho;KIM Se-Kwon;JEON Joong-Kyun;CHUNG Sook-Hyun;CHA Yong-Jun;KIM Soo-Hyun;KIM Kyung-Sam
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.15 no.2
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    • pp.147-153
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    • 1982
  • Nitrate and nitrite, which readily produce N-nitrosamines by reaction with secondary amines, are widely distributed in natural products such as vegetables and cereals, and are also used as a color fixation in meat products or fish roes. This experiment was carried out to determine the contents of nitrate and nitrite in foods such as fermented sea foods and fresh vegetables purchased at markets in Korea. The contents of nitrate were $0.74\sim13.81\;ppm$ for fermented sea foods and $4.0\sim1,572.5\;ppm$for fresh vegetables. As for vegetables, the nitrate levels of edible herbs were relatively higher than those of greens, fruits and rootcrops. The nitrite contents in fermented demoisells(Chromis notatus), fermented shrimp, fermented small squid, fermented anchovy and salted Alaska pollack roe were very little, while those in fermented hairtail and fermented entrails were not detected. As for vegetables, nitrite levels found for cabbage and lettuce were relatively as high as 3.8 ppm and $2.5\sim2.9\;ppm$, respectively, but were not detected in Korean cabbage, green perilla leaf, pepper, garlic and burdock. Of vegetables, the nitrate values in the outer part of Korean cabbage, stems of water cress and leaves of green onion were higher than in the other parts. Little variety of the nitrate levels were found during 4 days storage. In the comparison of low temperature storage and room temperature storage, lettuce, pumpkin and spinach contained higher levels of nitrate at low temperature storage, while eggplant and green onion, at room temperature storage.

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Study on Korean Fermented Sauce applied to Western Cuisine - Focused on Red Pepper Paste, Soybean Paste, Soy Sauce and Vinegar - (한국 발효 소스의 서양요리 적용에 대한 연구 - 고추장, 된장, 간장, 식초를 중심으로 -)

  • Kim, Jihyung;Yoo, Eunyi
    • Journal of the East Asian Society of Dietary Life
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    • v.27 no.2
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    • pp.223-234
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    • 2017
  • The purpose of this study was to determine the possibilities of Korean fermented sauces including red pepper paste, soybean paste, soy sauce, and vinegar as ingredients for Western cuisine. Western cuisine professionals from US and Europe were interviewed for their experienced opinions. To classify the categories, the selected statements were given to other groups of foreign chefs, Korean cuisine professionals and students majoring culinary arts. The first category pointed out that Korean fermented sauces are healthy with 'umami' taste using only natural ingredients. They believe it has high possibilities of matching with many of other foods and also has unique tastes. Korean cuisine professionals were mostly occupied in this category. The second category had negative opinions matching with Western cuisines since Korean fermented sauces are rough and have a strong taste & smell. This category had many Western cuisine professionals. The last category was composed of mainly students majoring in culinary arts. They pointed out that Korean fermented sauces use natural ingredients and have a unique flavor with long-term shelf life. Use of Q methodology was significantly different from previous studies researched by quantitative methods especially for the Korea food service industry.

S-Adenosyl-L-methionine (SAM) Production by Lactic Acid Bacteria Strains Isolated from Different Fermented Kimchi Products

  • Lee, Myung-Ki;Lee, Jong-Kyung;Son, Jeong-A;Kang, Mun-Hui;Koo, Kyung-Hyung;Suh, Joo-Won
    • Food Science and Biotechnology
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    • v.17 no.4
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    • pp.857-860
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    • 2008
  • S-Adenosyl-L-methionine (SAM) is a bioactive material used in the treatment of depression, osteoarthritis, and liver disease. To obtain lactic acid bacteria (LAB) producing high concentrations of SAM, LAB were isolated from commercial kimchi and from prepared kimchi products that contained shrimp jeotgal (fermented salty seafood) or sand lance jeotgal or that were fermented at 5 or $10^{\circ}C$, respectively, when pH was 4.2 to 4.8 and titratable acidity 0.6 to 0.9. Among the 179 LAB strains isolated from the fermented kimchi products, the genus Leuconostoc produced the highest intracellular level of SAM (1.58 mM) and Lactobacillus produced the second highest level (up to 1.47 mM) in the strain culture. This is the first study to quantify SAM in LAB isolated from fermented kimchi prepared by a general kimchi recipe. Ultimately, the selected strains (Leuconostoc mesentroides subsp. mesenteroides/dextranicum KSK417, L. mesentroides subsp. mesenteroides/dextranicum KJM401, and Lactobacillus bifermentans QMW327) could be useful as starters to manufacture fermented foods containing high levels of SAM.

Historical Review of Kimchi (김치의 역사적 관찰)

  • 조제선
    • Journal of the East Asian Society of Dietary Life
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    • v.4 no.2
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    • pp.93-108
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    • 1994
  • Kmich is the traditional vegetable fermented food. Like other traditional foods. it was not known when the kimchi was first processed. In the chinese historical litera tures, Salt and varlous vegetables were used in Korea from the time of kokuryo and shila Dynasty. Brined vegetable product might be therefore, processed at that time for the winter. But the product was highly salted and any seasonings were not added at all. Chinese cabbage and ned pepper were used for kimchi processing in 15-16 centureis. Vanious type of Kimchi simllar to present products were processed thereafter.

A Study on the Gaesung's Food Culture of the Late 19th Century in the Novel Mimang (소설 "미망" 속 19세기말 개성의 음식문화)

  • Kim, Mi-Hye;Chung, Hae-Kyung
    • Journal of the East Asian Society of Dietary Life
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    • v.21 no.4
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    • pp.471-484
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    • 2011
  • In this study, we attempted to understand the cultural characteristics of Korean food based on a traditional understanding of a Korean novel. To achieve this, food characteristics related to "Gaesung's foods" were analyzed in the representative Korean literary work Mimang. Mimang is a novel, from the latter era of the Chosun Dynasty to the Korean War in the Gaesung area. From that novel, it was discovered that first daily foods in the Gaesung area of the 19th century were various stored fermented foods. The second was the devotion of Gaesung food's cooking process and formal attire. The third was reflected in the economic abundance and the splendor of Gaesung food courts. The fourth was a modern public restaurant in Gaesung, an economic and commercial city. Another historically significant food found in Mimang was Gaesung ginseng.