• Title/Summary/Keyword: Soy foods

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Characterization of a Fibrinolytic Enzyme Secreted by Bacillus amyloliquefaciens CB1 and Its Gene Cloning

  • Heo, Kyeong;Cho, Kye Man;Lee, Chang Kwon;Kim, Gyoung Min;Shin, Jung-Hye;Kim, Jong Sang;Kim, Jeong Hwan
    • Journal of Microbiology and Biotechnology
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    • v.23 no.7
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    • pp.974-983
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    • 2013
  • Bacillus amyloliquefaciens CB1 was isolated from cheonggukjang, a Korean fermented soy food. B. amyloliquefaciens CB1 secretes proteases with fibrinolytic activities. A gene homologous to aprE of Bacillus subtilis, aprECB1, was cloned from B. amyloliquefaciens CB1, and DNA sequencing showed that aprECB1 can encode a prepro-type serine protease consisting of 382 amino acids. When aprECB1 was introduced into B. subtilis WB600 using an E. coli-Bacillus shuttle vector, pHY300PLK, transformants showed fibrinolytic activity and produced a 28 kDa protein, the size expected for the mature enzyme. The 28 kDa fibrinolytic enzyme was purified from the culture supernatant of B. subtilis WB600 transformant. AprECB1 was completely inhibited by phenylmethylsulfonyl fluoride and almost completely inhibited by EDTA and EGTA, indicating that it is a serine metalloprotease. AprECB1 exhibited the highest specificity for N-succinyl-Ala-Ala-Pro-Phe-p-nitroanilide, a known substrate for ${\alpha}$-chymotrypsin. $A{\alpha}$ and $B{\beta}$ chains of fibrinogen were quickly degraded by AprECB1, but the ${\gamma}$-chain was resistant.

Processing and Characteristics of Canned Seasoned Sea Mussel (조미 홍합 통조림의 제조 및 특성)

  • Park, Tae-Ho;Noe, Yu-Ni;Lee, In-Seok;Kwon, Soon-Jae;Yoon, Ho-Dong;Kong, Cheung-Sik;Nam, Dong-Bae;Oh, Kwang-Soo;Kim, Jeong-Gyun
    • Journal of Fisheries and Marine Sciences Education
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    • v.24 no.6
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    • pp.820-832
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    • 2012
  • This study was investigated to obtain basic data which can be applied to processing of canned seasoned sea mussel. Shell was washed and steamed for 10 min before shucking. Sea mussel meat was seasoned with mixed seasoning sauce(soy sauce 23%, monosodiun glutamate 2%, sorbitol 2%, sesame oil 1%, vinegar 2%, starch syrup 15%, water 55%) for 30 min The seasoned sea mussel 60 g was vacuum packed in RR-90 can and fill with seasoning sauce 30 mL and grape seed oil 30 mL respectively, and then there was sterilized for various Fo values(Fo 8~12 min) in a steam system retort at $121^{\circ}C$. pH, VBN, amino-N, total amino acid, free amino acid, color value, texture profile, TBA value, mineral content, sensory evaluation and viable cells count of the canned seasoned sea mussels sterilized with various conditions(Fo 8~12 min) were measured. The same experimental items were also measured during storage. There was no remarkable difference between sterilized conditions and sensual characteristics. The results showed that the product of filled with grape seed oil sterilized at Fo 8 min was the most desirable.

A Study on the Anorexia and Diet Patterns in Cancer Chemotherapy Patients (항암 화학요법을 받는 환자의 식욕부진 정도와 식이양상에 관한 연구)

  • Choi Eun-Sook;Kim Keum-Soon
    • Journal of Korean Academy of Fundamentals of Nursing
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    • v.2 no.1
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    • pp.19-35
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    • 1995
  • This study was designed to identify the severity of anorexia and the diet patterns in receiving chemotherapy. The identification of anorexia would provide useful and basic information to oncology nursing care. The subjects of this study were 102 hospitalized chemotherapy patients in a September 10, 1994. The subjects were 20 years old or above and who agreed to participate in this study and could understand the questionnaire. Three-days diet history were collected and analysed. The study subjects change, food aversions, the severity of anorexia. Data related to demographic and other mecdical characteristics such as age, diagnosis, and medication were collected by review of patient medical record. The results of this study were summarized as follows : 1) The score of anorexia was 73.7 in Anorexia Visual Analogue Scales and mean amount of fool intake per a day was 823cc. The larger the anorexia VAS score, the more severe of anorexia. 2) The food preferences of subjects were identified. Those were aversions, or dislikes the meat such as beef, pork, and chicken, and greesy or fried foods. The Caffeinated drinks such as coffee and tea were disgusted, also. The patients preferred vegetables and Korean traditional food especially kimchee and soy bean soap. 3) Those who were administered analgesics and cisplatin suffered more severe in anorexia than those who analgesics and cisplatin was not administarted. The patients with gastrointestinal cancer has more severe anorexia than those who have the other site cancer ; head and neck, genirourinary etc. The result of this study in turn provide valuable nursing practice guidelines for nutritional counseling in cancer chemotherapy patient. Nurses working with chemotherapy ward should identify the severity of anorexia and diet patterns. In conclusion, the severity of anorexia in cancer chemotherapy patients is very important problems. Health care personnels recognize the potential problems of anorexia and encourage the nutritional counseling in cancer chemotherapy patients.

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The Factors Associated with Dietary Knowledge and Educational Needs of Stroke Patients (뇌졸중 환자의 식이지식 및 식이교육 요구도 관련 요인)

  • Baek, Jihyun;Choi-kwon, Smi;Park, Da-In;Hong, Eunji;Yoon, Byung-Woo
    • Journal of Korean Biological Nursing Science
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    • v.22 no.1
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    • pp.61-70
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    • 2020
  • Purpose: The purpose of the this study was to examine the dietary knowledge and educational needs of stroke patients and analyze the related factors that are associated with dietary knowledge and educational needs. Methods: Our study analyzed data from 146 stroke patients. The survey was conducted by individual interviews using questionnaires and data collected from participants' medical records. Dietary knowledge and educational needs were measured by tools developed by the author. Results: The mean scores for the dietary knowledge and educational needs were 19.09±3.48 and 36.17±7.18, respectively. Many stroke patients had misconceptions about soy sauce, cholesterol, and fruits. The most needed items in dietary education was first identifying foods that are beneficial or harmful, and second, food interaction with medications. As for the results of multiple regressions, dietary knowledge was significantly associated with gender, educational attainment, monthly income, exercise, body mass index, and level of compliance to dietary therapy. Additionally, the educational needs were significantly related with educational attainment and employment. Conclusion: For secondary prevention of stroke patients, education strategy considering dietary knowledge and educational needs of stroke patients should be established. Special attention is needed for stroke patients with a lower level of dietary knowledge and educational needs.

Students' Food Preferences on Vegetarian Menus Served at Middle and High Schools (채식중심 학교급식 메뉴에 대한 중.고등학생들의 선호도)

  • Lee, Gyeong-Eun;Hong, Wan-Su;Kim, Mi-Hyeon
    • Journal of the Korean Dietetic Association
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    • v.11 no.3
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    • pp.320-330
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    • 2005
  • The purpose of the study was to assess students’preferences on vegetarian menus served at middle and high schools. Four school food service programs that served primarily vegetarian menus were located in Seoul, Kyunggi, Kangwon, and Choongnam provinces. A total of 100 menu items frequently served at the schools were identified. Students participating in the school meals programs were asked to assess their preferences of the menus using a 5-point Likert-type scale(1 : very dislike - 5 : very like). Excluding responses with significant missing data, usable responses were 659. Statistical analyses were performed with descriptive statistics, t-tests, and one-way analysis of variance. Menu items of the highest preference scores included kimchi stew, stir-fried kimchi, nangmyon(cold noodles), fried rice and kimchi, miso stew, soft tofu stew, and hard-boiled quail eggs in soy sauce. By menu category, one-dish foods(3.97) were the most preferred and muchim and namul were the least preferred. Female students showed higher preferences on kimchi, steamed items(jjim), stir-fried items, namul, and muchim than male students; middle school students’preference scores were higher than those of the high school students in most menu categories. The menu preference is known as one of the most important factors determining students’food consumption and satisfaction with school food service. Dietitians working at school food service programs that serve primarily vegetarian menus should provide students with nutrition education on proper food selection and focus their efforts on developing new recipes using various vegetables and preparation methods to improve students’food consumption and menu preference.

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A Study on Dietary Behavior and Food Preference of Sramanera·Sramanerika Monks in Nationwide Buddhist Monk's Universities (전국 승가대학 예비승려들의 식행동과 음식기호도에 관한 연구)

  • Han, Su-Jin;Lee, Sim-Yeol
    • Korean Journal of Community Nutrition
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    • v.22 no.5
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    • pp.387-400
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    • 2017
  • Objectives: This study was designed to find out factors that are needed to be improved for the Buddhist training environment of Sramanera Sramanerika monks, who have been newly adapted for their life style after becoming a monk, and to provide basic data for the development of the standard diet in Buddhist temples. Methods: A self-administered questionnaire was applied to 365 Sramanera Sramanerika monks at 11 Buddhist monk universities. The questionnaire was designed to investigate their dietary habits, dietary evaluation, satisfaction of food service, and food preferences. Results: The study population consisted of 52.6% men, and 47.4% women. The subjects who had a vegetarian diet before joining the Buddhist priesthood were 27.7% women, and 13.5% men (p<0.01). 42.2% of the total subjects felt that they are healthy now and 19.4% felt weak. The most difficulty of dieting adaptation as soon as entering the priesthood was the strict diet rules (42.9%). The subjects considered health or nutrition (40.0%) highly when having meals. 94.8% women, 84.1% men ate breakfast every day (p<0.001). Women (55.4%) frequently ate snacks more than men (26.6%) (p<0.001). The results of the dietary evaluation indicated that the intake of milk, soy milk or dairy products and beans or tofu received lower than 3 points and women had lower point result than men (p<0.001). Foods with higher preference were grilled mushrooms, grilled laver, miso stew, sweet and sour mushrooms, steamed tofu with seasoning. Conclusions: Women were more interested in their health than men but they also required to improve the nutritional eating habits. It appeared that the lower intake rates of the calcium containing food (milk and dairy), and proteins (beans and tofu) could result in nutritional imbalance. Therefore, it is necessary to offer food based on the standard menu plan with consideration given to their food preferences in order to maintain their health and desirable dietary habits.

Analysis of the MAT1-1 and MAT1-2 Gene Ratio in Black Koji Molds Isolated from Meju

  • Mageswari, Anbazhagan;Kim, Jeong-seon;Cheon, Kyu-Ho;Kwon, Soon-Wo;Yamada, Osamu;Hong, Seung-Beom
    • Mycobiology
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    • v.44 no.4
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    • pp.269-276
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    • 2016
  • Aspergillus luchuensis is known as an industrially important fungal species used for making fermented foods such as awamori and shochu in Japan, makgeolli and Meju in Korea, and Pu-erh tea in China. Nonetheless, this species has not yet been widely studied regarding mating-type genes. In this study, we examined the MAT1-1 and MAT1-2 gene ratio in black koji molds (A. luchuensis, Aspergillus niger, and Aspergillus tubingensis) and in Aspergillus welwitschiae isolated from Meju, a fermented soybean starting material for traditional soy sauce and soybean paste in Korea. The number of strains with the MAT1-1 locus was 2 of 23 (A. luchuensis), 6 of 13 (A. tubingensis), 21 of 28 (A. niger), and 5 of 10 (A. welwitschiae). Fungal species A. tubingensis and A. welwitschiae showed a 1 : 1 ratio of MAT1-1 and MAT1-2 mating-type loci. In contrast, A. luchuensis revealed predominance of MAT1-2 (91.3%) and A. niger of MAT1-1 (75%). We isolated and identified 2 A. luchuensis MAT1-1 strains from Meju, although all strains for making shochu in Japan are of the MAT1-2 type. These strains may be a good resource for breeding of A. luchuensis to be used in the Asian fermented-food industry.

Preparation of Retort Pouched Seasoned Sea Mussel and Its Quality Stability during Storage (레토르트파우치 조미 홍합의 제조 및 저장 중 품질 변화)

  • Noh, Yu-Ni;Yoon, Ho-Dong;Kong, Cheung-Sik;Nam, Dong-Bae;Park, Tae-Ho;Kim, Jeong-Gyun
    • Journal of Fisheries and Marine Sciences Education
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    • v.23 no.4
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    • pp.709-722
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    • 2011
  • This study was investigated to obtain basic data which can be applied to processing of retort pouched seasoned sea mussel. Shell was washed and steamed before shucking. Sea mussel meat was seasoned in boiled and mixed seasoning sauce(soy sauce 23%, monosodiun glutamate 2%, sorbitol 2%, sesame oil 1%, vinegar 2%, starch syrup 15%, water 55%) for 30 min. The seasoned sea mussel was vacuum packed in plastic film bag and sterilized for various Fo values(Fo 7~13 min.) in a hot water circulation system retort at $121^{\circ}C$. The chemical composition such as pH, VBN, amino-N, total amino acid, free amino acid, color value (L, a, b), texture profile, TBA value, mineral, sensory evaluation and viable cells count of the retort pouched seasoned sea mussels sterilized with various conditions(Fo 7~13 min.) were measured. The same experimental items were also measured during storage. There was no remarkable difference between sterilization conditions and sensual characteristics. The results showed that the product sterilized at Fo 7 min. was the most desirable because this condition is most economical.

Anti-photoaging Effects of Fermented Soybean (Bio-Peptone®) (대두 발효물(Bio-Peptone®)의 광노화 억제 효과)

  • Kim, Eun Ju;Shim, Myeong Kuk;Jeong, A Ram;Kim, Ae Jung
    • Journal of the Society of Cosmetic Scientists of Korea
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    • v.45 no.1
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    • pp.27-36
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    • 2019
  • Soybean (Glycine max), as one of the foods with high plant proteins, contains a large amount of bioactive compounds and known to be effective in cardiovascular disease and obesity as well as in improving skin condition. The purpose of this study was to investigate the anti-photoaging effects of soybean fermented with Lactobacillus Rhamnosus ($Bio-Peptone^{(R)}$) by assessment of cytotoxicity against UVB, collagen synthesis after UVB-irradiation, tyrosinase activity, and melanin synthesis. Results showed that $Bio-Peptone^{(R)}$ protected skin fibroblasts against UVB-induced cytotoxicity and increased type I collagen synthesis. Furthermore, $Bio-Peptone^{(R)}$ significantly inhibited tyrosinase activity and reduced melanin contents. This study suggests that $Bio-Peptone^{(R)}$ has protective effects against UVB-induced skin damage. Thus, it is concluded that $Bio-Peptone^{(R)}$ is able to prevent skin damage against UVB and thus acts as anti-photoaging materials by protecting skin forming wrinkles and skin pigments.

Effect of Erythritol on Glucosyl Transferase and Fructosyl Transferase Gene Expression in Streptococcus mutans (Streptococcus mutans의 Glucosyl Transferase와 Fructosyl Transferase 유전자 발현에 대한 Erythritol의 효과)

  • Young-Nam PARK;Jae-Ki RYU
    • Korean Journal of Clinical Laboratory Science
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    • v.55 no.3
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    • pp.151-158
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    • 2023
  • Erythritol is a sweetener produced by yeast from glucose and a natural sugar found in fermented foods such as mushrooms, wine, fruits, rice wine, and soy sauce. Correct information and basic data when producing or using products for preventing dental caries by checking the gene expression patterns of glucosyl transferase (GTF) and fructosyl transferase (FTF) of Streptococcus mutans in erythritol and other sweeteners it was implemented to provide. Erythritol inhibited the growth of Streptococcus mutans, which is involved in dental caries. When used as a sweetener to replace sucrose, erythritol had an excellent caries-preventative effect. In particular, erythritol reduced the expressions of gtfB, gtfC, gtfD, and FTF, which are related to the synthesis of extracellular polysaccharides, and thereby reduced the formation of dental plaque and the attachment rate of bacteria to tooth surfaces. The study shows erythritol has potential use as an anticariogenic sweetener that inhibits the mechanism underlying caries caused by Streptococci.