• 제목/요약/키워드: soybean-based foods

검색결과 99건 처리시간 0.021초

연하보조식 점도 조절 가이드를 위한 국과 음료류의 점도증진제 첨가 조건 설정 (Study on Setting the Amount of Thickening Agent in Soup and Beverages as a Guide for Modifying the Viscosity of Dysphagia Diets)

  • 이지현;육동현;김미현
    • 대한영양사협회학술지
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    • 제30권1호
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    • pp.11-28
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    • 2024
  • This study aimed to establish the optimal amount of thickening agent for the appropriate viscosity in soups and beverages, which are part of the dysphagia diet. The soups were bean sprout soup and soybean paste soup; the beverages were orange juice, regular milk, and low-fat milk; the thickening agent was one type of xanthan gum product. After adding the thickening agents (from 1 g to 5 g per 200 mL of the test food), syringe tests were conducted over time (5, 10 and 15 minutes) to verify the effects of the amount of thickening agent added per sample and the time between addition and achieving the resulting viscosity, and to establish the optimal addition conditions to reach IDDSI levels 1, 2, and 3 of the dysphagia diet. Water (based on 200 mL) was used as the standard control. These results provide a useful basis for customized diets based on the patient's dysphagia severity. On the other hand, this study is limited by including only liquid foods in the dysphagia diet and one type of xanthan gum-based thickening agent. Therefore, it is necessary to conduct continuous research, based on the study results, to modify the viscosity of the dysphagia diet using various thickening agents and foods and prevent nutritional deficiencies by managing the diet according to the patient's swallowing ability.

Presence of Transgenic Genes and Proteins in Commercial Soybean Foods from Mexican Grocery Stores

  • Cruz-Flores, Yendi Arely;Rodriguez-Herrera, Raul;Aguilar-Gonzalez, Cristobal Noe;Contreras-Esquivel, Juan Carlos;Reyes-Vega, Maria de la Luz
    • Food Science and Biotechnology
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    • 제17권5호
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    • pp.1092-1096
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    • 2008
  • Commercial food products from major cities of Coahuila, Mexico were screened to identify residues of transgenic deoxyribonucleic acid (DNA) and/or proteins. After performed, an inventory on all products that contained a soybean-based ingredient in a commercial grocery store in the city of Saltillo, Coahuila, Mexico, 245 food products were identified and grouped in 15 classes according to the soybean ingredient as well as the manufacturing process used for their elaboration. Similar sampling was made for the different food classes in the cities of Monclova, Piedras Negras, and Torreon. A total of 88 samples were analyzed and DNA was extracted by the hexadecyltrimethyl-ammonium bromide (CTAB) technique with slight modification to obtain better DNA quality (1). In addition, segments of the transgenic genes one that codifies for 5-enolpyruvylshikimate-3-phosphate synthase (epsps), cry 1A, and the cauliflower mosaic virus (CaMV) promoter were amplified using polymerase chain reaction (PCR). The transgenic proteins 5-enolpyruvylshikimate-3-phosphate synthase (CP4 EPSPS) and insecticidal crystal protein (Cry 1Ab/Ac) were identified using double antibody sandwich-enzymatic linked immunoassay analysis (DAS-ELISA). Presence of transgenic genes and/or proteins was identified in 35.3% of the commercial products samples.

Aflatoxin B1 Detoxification by Aspergillus oryzae from Meju, a Traditional Korean Fermented Soybean Starter

  • Lee, Kyu Ri;Yang, Sun Min;Cho, Sung Min;Kim, Myunghee;Hong, Sung-Yong;Chung, Soo Hyun
    • Journal of Microbiology and Biotechnology
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    • 제27권1호
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    • pp.57-66
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    • 2017
  • Aflatoxins are classified as Group 1 (carcinogenic to humans) by the International Agency for Research on Cancer. In this study, a total of 134 fungal strains were isolated from 65 meju samples, and two fungal isolates were selected as potential aflatoxin $B_1$ ($AFB_1$)-biodetoxification fungi. These fungi were identified as Aspergillus oryzae MAO103 and A. oryzae MAO104 by sequencing the beta-tubulin gene. The two A. oryzae strains were able to degrade more than 90% of $AFB_1$ (initial concentration: $40{\mu}g/l$) in a culture broth in 14 days. The mutagenic effects of $AFB_1$ treated with A. oryzae MAO103 and MAO104 significantly decreased to 5.7% and 6.4%, respectively, in the frame-shift mutation of Ames tests using Salmonella typhimurium TA98. The base-substituting mutagenicity of $AFB_1$ was also decreased by the two fungi. Moreover, $AFB_1$ production by Aspergillus flavus was significantly decreased by the two A. oryzae strains on soybean-based agar plates. Our data suggest that the two $AFB_1$-detoxifying A. oryzae strains have potential application to control $AFB_1$ in foods and feeds.

Metabolite Profiling and Microbial Community of Traditional Meju Show Primary and Secondary Metabolite Differences Correlated with Antioxidant Activities

  • Song, Da Hye;Chun, Byung Hee;Lee, Sunmin;Reddy, Chagam Koteswara;Jeon, Che Ok;Lee, Choong Hwan
    • Journal of Microbiology and Biotechnology
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    • 제30권11호
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    • pp.1697-1705
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    • 2020
  • Meju, a type of fermented soybean paste, is used as a starter in the preparation of various Korean traditional soybean-based foods. In this study, we performed Illumina-MiSeq paired-end sequencing for microbial communities and mass spectrometry analysis for metabolite profiling to investigate the differences between 11 traditional meju products from different regions across Korea. Even though the bacterial and fungal communities showed remarkable variety, major genera including Bacillus, Enterococcus, Variovorax, Pediococcus, Weissella, and Aspergillus were detected in every sample of meju. The metabolite profile patterns of the 11 samples were clustered into two main groups: group I (M1-5) and group II (M6-11). The metabolite analysis indicated a relatively higher amino acid content in group I, while group II exhibited higher isoflavone, soyasaponin, and lysophospholipid contents. The bioactivity analysis proved that the ABTS (2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid)) radical-scavenging activity was higher in group II and the FRAP (ferric reducing antioxidant power) activity was higher in group I. The correlation analysis revealed that the ABTS activity was isoflavonoid, lipid, and soyasaponin related, whereas the FRAP activity was amino acid and flavonoid related. These results suggest that the antioxidant activities of meju are critically influenced by the microbiome and metabolite dynamics.

인공위액조건과 예열처리에 따른 GM 콩 도입단백질(CP4EPSPS)의 소화성 평가 (In vitro Digestibility Assessment of CP4EPSPS in GM Soybean under Different Conditions of Simulated Gastric Fluid and Preheating)

  • 최미희;김건희
    • 한국식품영양과학회지
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    • 제41권9호
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    • pp.1310-1314
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    • 2012
  • 본 실험은 제초제 내성을 가지는 CP4EPSPS를 도입시킨 유전자재조합 콩을 이용하여 인공위액의 비율에 따른 도입 단백질의 소화특성을 평가하고, 열처리가 유전자재조합 콩의 도입단백질의 소화성에 미치는 영향을 살펴보았다. 유전자재조합 콩과 펩신의 비율에 따른 도입단백질 CP4EPSPS의 소화성은 인공위액 즉 펩신의 양에 따라 차이를 나타내 유전자재조합 식품의 도입단백질에 대한 소화성 평가에서 펩신의 양이 중요한 요인이 됨을 알 수 있었다. 또한 유전자 재조합 콩에 대한 예열처리가 도입단백질 CP4EPSPS의 펩신에 대한 내성을 많이 감소시켜 소화성을 높이는 것으로 나타났다. 따라서 앞으로 유전자재조합식품의 안전성을 평가하는 in vitro 소화평가 시험에서 생리학적 측면에 근거한 인공위액의 비율을 반영함으로써 보다 정확한 도입단백질의 소화성에 대한 평가가 필요하리라 사료되며, 또한 콩의 주요 섭취방법인 열처리에 따른 도입단백질의 소화특성을 평가함으로써 유전자재조합 콩의 안전성에 대한 신뢰도 제고를 위한 기초자료가 될 것으로 기대된다.

Screening and Characterization of Microorganisms with Fibrinolytic Activity from Fermented Foods

  • Yoon, Seon-Joo;Yu, Myeong-Ae;Sim, Gwan-Sub;Kwon, Seung-Taek;Hwang, Jae-Kwan;Shin, Jung-Kue;Yeo, In-Hyun;Pyun, Yu-Rang
    • Journal of Microbiology and Biotechnology
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    • 제12권4호
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    • pp.649-656
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    • 2002
  • Fibrinolytic microorganisms were screened from 42 samples of Korean fermented food (7 kinds of Chungook-jang, 14 kinds of commercial Doen-Jang, 5 kinds of home-made Doen-jang, and 16 kinds of Jeot-gal), 15 samples of Japanese fermented food (5 kinds of home-made soybean paste, and 10 kinds of Natto), and 19 samples of Indonesian fermented food (Tempe) as well as starters of Meju (500 microflora from Korea, and 22 from China). Initially, 11 isolates with strong fibrinolytic activity were selected for further characterization. The fibrinolytic activity of the 11 isolates ranged from 89 to 199% of standard plasmin. Four strains, M5l from Korean fermented food (Meju), I 1-1, I 1-4, and I 5-1 from Indonesian fermented food (Tempe), were chosen based on the degree of activity and reproducibility, and identified as Staphylococcus sciuri, Citrobacter or Enterobacter, Enterococcus faecalis, and Bacillus subtilis, respectively. The first two isolates are pathogenic stains while the latter two are considered as GRAS (Generally Recognized As Safe). Fibrinolytic activity of E. faecalis, characterized and designated as BRCA-5, reached a maximum, when the producer was cultivated in Ml7 broth supplemented with 1.0% glucose for 5 h at 37$^{\circ}C$ with shaking at 180 rpm. Compared to commercial fibrinolytic enzymes, the cell-free culture supernatant of 5. faecaiis BRCA-5 showed stronger activity than plasmin and streptokinase, but similar degree of specific activity as nattokinase and urokinase, aud it also demonstrated anticoagulant and antiplatelet activity ex vivo. These features of E. faecalis make it an attractive agent as a biomaterial for health-promoting foods.

식품 단백질 유발성 직결장염에서 식품 특이 IgE 항체 검사의 임상적 의의 (Clinical Significance of Food-specific IgE Antibody Tests in Food Protein-induced Proctocolitis)

  • 송정윤;강유나;김재룡;황진복
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • 제11권1호
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    • pp.36-41
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    • 2008
  • 목 적: 식품 단백질 유발성 직결장염(food proteininduced proctocolitis, FPIPC)은 영아기에 모유 수유아에서 호발하는 식품 알레르기 질환으로 식품 알레르기의 비-IgE 매개형으로 분류되고 있다. FPIPC의 유발 원인 식품을 예측할 수 있는 식품 특이 IgE 항체 검사의 임상적 의의를 알아보고자 한다. 방 법: 2006년 2월부터 2007년 5월까지 진단된 16예를 대상으로 하였다. 선홍빛, 소량의 혈변, 정상 배변 및 성장 등의 임상 상황과 직장 조직 생검에서 호산구 침윤이 10개의 고배율시야당 60개 이상일 때 FPIPC로 진단하였다. 진단 후 모체나 환자의 식단에서 5가지 식품(유제품, 계란, 콩 및 견과류, 밀가루, 어패류)을 4일간 제거 후 증상의 호전을 보이면 식단에 단계적으로 유발 시험을 시행하여 증상 유무로 유발 식품을 판단하고, 내원 당시 시행된 알레르기 MAST 및 Uni-CAP 검사와 비교 분석하였다. 결 과: FPIPC 환자는 16예(남:여, 10:6)로 진단 당시 연령은 생후 1~13개월이었다. 알레르기 MAST에서 특정 식품에 양성을 보인 경우는 2예(12.5%)였으며, Uni-CAP에서 양성을 보인 경우는 3예(18.8%)였다. 유발 시험을 통하여 혈변의 원인으로 확인된 식품 건수는 총 33건으로 어패류 7건(21.2%), 계란 6건(18.2%). 밀가루 6건(18.2%), 유제품 4건(12.1%), 콩 3건(9.1%), 돼지고기 3건(9.1%), 견과류 2건(6.1%), 쇠고기 1건(3.0%), 버섯 1건(3.0%)이었다. 알레르기 MAST 양성 혹은 Uni-CAP 양성과 증상 관련 식품이 일치하는 경우는 각각 1예(6.7%)에서 관찰되었다. 결 론: FPIPC에서 식품 특이 IgE 항체 검사인 알레르기 MAST와 Uni-CAP은 관련 식품에 대한 진단적 예측 지표로는 부적합한 것으로 판단되며, 모체 혹은 환자의 식단에서 식품 제거 및 유발 시험이 관련 원인 식품을 추정해 낼 수 있는 임상 수기로 판단된다.

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전통장류 유래 Bacillus sp.를 이용한 콩 발효물의 품질 특성 (Quality Characteristics of Fermented Soybean Products by Bacillus sp. Isolated from Traditional Soybean Paste)

  • 이선영;엄정선;최혜선
    • 한국식품영양과학회지
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    • 제43권5호
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    • pp.756-762
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    • 2014
  • 전통 장류 유래 효소 활성 및 항균 활성 우수 Bacillus sp.를 스타터로 한 콩 발효물의 품질 특성을 분석하였다. 총균수는 HJ5-2를 접종한 시료가 $3.00{\times}10^9CFU/mL$로 가장 높았으며, 유산균은 스타터 첨가 콩 발효물에서 $2.50{\times}10^2{\sim}7.30{\times}10^4CFU/mL$를 나타나는 것으로 보아 접종된 균주가 우점종이 된 것을 확인하였다. ${\alpha}$-Amylase 활성은 RD7-7(20.82 unit/mL)과 HJ18-4(18.45 unit/mL), protease 활성은 RD7-7(647.92 unit/mL)을 접종한 콩 발효물이 높은 활성을 나타내었다. 환원당 함량은 HJ18-4(2.35%), 아미노태 질소 함량은 RD7-7(227.96 mg%) 접종 콩 발효물에서 높은 함량을 나타내었다. 아미노산 함량은 glutamic acid, aspartic acid, leucine, lysine, arginine 순으로 검출되었다. 유기산은 oxalic acid(36.51~63.57 mg/100 g)가 모든 실험군에서 검출되었으며, succinic acid(600.15~429.49 mg/100 g)는 control과 RD7-7 접종 콩 발효물에서 검출되었다. 향기 성분을 분석한 결과 총 28종(esters 3종, ketones 6종, aldehydes 2종, alcohols 4종, hydrocarbons 2종, pyrazines 2종, acids 4종, 기타 4종)이 검출되었으며, RD7-7과 HJ18-4를 접종한 콩 발효물에서 23종의 향기 성분이 검출되었다. 본 연구는 고품질 장류용 스타터 개발을 위한 단일균 접종 콩 적용 시험으로 향후 혼합배양 스타터 개발 및 기능성 콩 발효소재 개발을 위한 기초자료로 제시하고자 한다.

Determining the Reuse of Frying Oil for Fried Sweet and Sour Pork according to Type of Oil and Frying Time

  • Park, Jung Min;Koh, Jong Ho;Kim, Jin Man
    • 한국축산식품학회지
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    • 제40권5호
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    • pp.785-794
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    • 2020
  • Food Codex regulations have set freshness limits for oils used to fry food, such as potato and fish products, and fried food itself; however, no such freshness limits have been set for meat products, such as sweet and sour pork. The freshness standard suggest that acid values (AVs) and peroxide values (POVs) for frying oil should be less than 2.5 and 50, respectively, whereas AVs and POVs for common fried food should be less than 5.0 and 60, respectively. Therefore, in this study, we investigate the effect of the number of frying cycles on oxidation-promoted changes in the oils used to fry sweet and sour pork and fried food itself during repeated frying over 10 d by determining their AVs and POVs, which were found to be highly correlated. Soybean, canola, palm, and pork lard oils could be reused approximately 37, 32, 58, and 87 times, respectively, to fry sweet and sour pork based on oil freshness, and 78, 78, 81, and 286 times, respectively, based on the freshness of fried food. Our data may help establish food-quality regulations for oils used to fry animal-based foods.

대두 및 옥수수 가공식품에서 유전자재조합체(GMO)의 정성 PCR분석을 위한 핵산 추출방법별 비교 (Comparative Evaluation on Qualitative PCR using Different Extraction Methods for Nucleic Acids on Soybean and Corn Processed Foods)

  • 김영찬;이철수;황순욱;김성조;이영옥;윤성원;서정화;남용석
    • 한국식품위생안전성학회지
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    • 제18권1호
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    • pp.6-13
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    • 2003
  • PCR법은 특정 유전자를 증폭하는 기술로 작물 및 식품에서 유전자 변형체 함유 여부를 가리는 효과적인 방법이다. 그러나 핵산의 추출법에 따라 PCR의 감도가 크게 달라지므로 정확한 추출법의 선정이 매우 중요하다. 본 연구는 현재 컬럼형 상용화 키트와 기존의 용매 추출방법을 이용하여 콩과 옥수수가공식품에 대한 각 유전자 부위의 검출감도를 비교 분석하였다. 핵산의 추출효율과 도입유전자의 증폭효율면 모두 상용화 키트인 Wizar$d^{TM}$, DNeasy$^{TM}$ 추출법이 우수하였다. DNeasy법은 대부분의 식품에서 우수한 추출효율을 보였으나, 옥수수가공식품에서 수율이 감소하는 단점을 나타내었다. Wizard법은 모든 가공식품에서 고른 추출효율을 보였으며, PCR반응에 의한 증폭산물도 잘 보존되어 가공식품의 GMO 검출에 적합한 것으로 나타났다. 한편 CTAB법은 콩가공식품에서 약간 효율이 좋은 것으로 나타났으나 대부분의 경우 효율이 낮았으며, 식품의 종류에 따라 편차가 심하게 나타났다. phenol/chloroform법은 대부분의 식품에서 핵산의 분리가 어려운 방법으로 나타나 GMO분석에는 적합하지 않은 방법으로 확인되었다.