• Title/Summary/Keyword: soy foods

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Consumption Pattern and Sensory Evaluation of Korean Traditional Soy Sauce and Commercial Soy sauce (재래식 조선간장과 시판양조간장의 소비실태조사 및 관능적 특성 연구)

  • 김영아;김현숙
    • Korean journal of food and cookery science
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    • v.12 no.3
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    • pp.280-290
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    • 1996
  • The suwey on the consumption pattern of Korean traditional soy sauce and commercial soy sauce was performed. 55.8 percentage of surveyed house makes Korean traditional soy sauce domestically, But its frequency in actual use is lower than commercial soy sauce. The use of Korean traditional soy sauce and commercial soy sauce was different depending on the kinds of food. Korean traditional soy sauce is mainly used for kinds of soup, and commercial soy sauce is predominantly used for hard-boiled foods and Chapchae. Korean traditional soy sauce is known as our typical fermented food and has special flavor. But its main factors of special flavor were not well established yet. So the authors have investigated the main components of Korean traditional soy sauce for its typical taste. Five samples o$.$ere selected from'Kyung-ln'area. The sensory charac teristics of Korean traditional soy sauce itself were very different with that of cooked food added with Korean traditional soy sauce. The hard-boiled mackerel cooked with commercial soy sauce was prefered than Korean traditional soy sauce. And soups and seasoned vegetables cooked with Korean traditional soy sauce were profered. By stepwiEe regression analysis and correlation analysis, sensory overall acceptability mainly depends on specific gravity, salt content and amino nitrogen content (R'=0.94). And total nitrogen content was highly coirelated with overall acceptability (r=0.91).

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Study on Growth and Acid Production by Lactic Acid Bacteria in Soy Milk (두유(豆乳)에서 젖산균의 생육(生育)과 산생성(酸生成)에 관한 연구)

  • Kim, Kyung-Hee;Ko, Young-Tae
    • Korean Journal of Food Science and Technology
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    • v.19 no.2
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    • pp.151-156
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    • 1987
  • Four types of soy milk prepared from soybean, defatted soybean, soy protein concentrate (SPC) or soy protein isolate (SPI) were fermented with Lactobacillus acidophilus, L. bulgaricus, L. casei, Leuconostoc mesenteroides or Streptocroccus lactis. Growth and acid production by each organism in soy milks were investigated. Acid production by L. acidophilus was miximum in soy milk while acid production by other organisms was maximum in defatted soy milk. All the organisms produced least amount of acid in SPI-milk. Addition of yeast extract (0.5) to four types of soy milks stimulated acid production by lactic acid bacteria, particularly in case of L. acidophilus. Higher concentration of total solids in soy milks resulted in better growth and more acid production by L. acidophilus and L. bulgaricus.

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Nutritional Quality of Fermented Soy Foods in Thailand

  • Cheong, Hyo-Sook;Choi, Hee-Sun;Kang, Ok-Ju;Manochaiand Benya;Hong, Jeong-Hwa
    • Preventive Nutrition and Food Science
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    • v.10 no.3
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    • pp.262-266
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    • 2005
  • Soybean has been favored by many Thai people and it has been prepared by numerous different methods. Collected samples are as follows: Thua-nao paste from Chiangrai province, dried Thua-nao for Jatujak Market, Bangkok, 3 types of commercial soybean paste, soybean sauce and 2 types of fermented soybean curd cakes with other ingredients. Moisture contents of fresh and dried Thua-nao were 68.5 and $7.6\%$, respectively; therefore the shelf-life of dried Thua-nao can be extended to 1 year with proper packaging. The remainder of the soy foods had moisture contents of 55.4 to $64.4\%$. Fat contents of fresh and dried Thua-nao were 7.4 and $19.7\%$, respectively, whereas other samples contained less than $3\%$. Dried Thua-nao had the highest CHO (carbohydrates) content $(37.4\%);$ in contrast, soybean sauce contained only $4.5\%$. Calcium content was highest in dried Thua-nao followed by fresh Thua-nao; the other fermented soy foods had less than 44.7 mg/l00 g. Salt was added to samples other than Thua-nao resulting in high Na contents. Free and total daidzein contents of dried Thua-nao were 355 and 676 ug/g; similarly free and total genistein contents were 293 and $616.5\;\mug/g$, respectively.

Preference for Soybean-based Foods and Isoflavone Intake in Female Adults Living in Daegu (대구 지역 성인 여성의 대두식품 기호도와 이소플라본 섭취량)

  • Choi, Mi-Ja;Jung, Yun-Jung;Lee, Na-Kyung
    • Journal of the East Asian Society of Dietary Life
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    • v.19 no.3
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    • pp.409-420
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    • 2009
  • This study investigated preferences toward soybean-based foods and levels of dietary isoflavone intake in female adults living in Daegu. In order to determine the subjects' attitudes toward soybean-based foods their degrees of recognition and preference along with intake frequency were examined. To estimate their isoflavone intake levels, a food frequency questionnaire and the 24-hour recall method were used. The average age, height, weight, and BMI of the subjects were 47.3 years, 159.6 cm, 56.4 kg, and 22.1 kg/$cm^2$, respectively. And their mean energy, protein, dietary fiber, calcium, and sodium intakes were 1,871.9 kcal, 81.1g, 23.2 g, 604.7 mg, and 5.07 g, respectively. The average amount of isoflavones consumed from soy foods was 29.49 mg/day(daidzein 13.14 mg/day and genistein 16.35 mg/day) as assessed by food frequency questionnaire, and by the 24-hour recall method the average amount was 22.97 mg/day (daidzein 10.10 mg/day and genistein 12.87 mg/day), showing that the food frequency questionnaire assessment amount was 6.52 mg higher than that by 24-hour recall method. The major food sources of the isoflavones were soybean paste and soybeans. For the subjects' degrees of recognition of soybean food, soybean paste received the highest score among the items. The results also showed that the most preferred soybean-based foods were soybean paste stew and soybean paste soup. Furthermore isoflavone intake was significantly higher in the postmenopausal women than in the premenopausal women. Overall, these data help elucidate the patterns and determinants of soy food consumption and also provide an assessment of dietary soy isoflavone intake in Korean women.

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Preparation and Characteristics of Low-salt Soy Sauce with Anti-hypertensive Activity by Addition of Miduduk Tunic, Mulberry, and Onion Extracts (미더덕 껍질, 뽕잎, 양파 추출물을 첨가한 항고혈압 저염간장의 제조 및 특성)

  • Shin, Yu-Jin;Lee, Chang-Kwon;Kim, Hyun-Jin;Kim, Hyoun-Sung;Seo, Han-Geuk;Lee, Seung-Cheol
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.43 no.6
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    • pp.854-858
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    • 2014
  • Extracts of Styela clava (Korean name: miduduk) tunic, mulberry, and onion were selected by pre-screening to develop low-salt soy sauce (12% salt content) with anti-hypertensive activity. After choosing the formula for low-salt soy sauce, extracts were added separately or by mixture in combination. In the case of anti-hypertensive activity, low-salt soy sauce containing extracts of miduduk tunic and onion showed 30% increased inhibitory activity towards angiotensin I converting enzyme, compared to normal salt soy sauce (15% salt content). Addition of extracts also significantly increased DPPH radical scavenging activities of the soy sauces. These results suggest that natural resources such as miduduk tunic, mulberry, and/or onion might be potential candidates for development of low-salt soy sauce with anti-hypertensive activity.

A Study on Contents of Salt in Stored Foods Which Homemakers Prepared and Their Urine in Chon-buk Province (전북지역의 주부가 담근 저장식품과 뇨중의 식염함량에 관한 연구)

  • Kim, In-Suk;Seo, Eun-Suk;Jeon, Sun-Yeong
    • The Korean Journal of Food And Nutrition
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    • v.7 no.3
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    • pp.183-191
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    • 1994
  • This study was conducted to find out the contents of salt in stored foods and urine of housewives. The contents of sodium in soy sauce, kochujang and kimchi was significantly higher in rural than urban area. The contents of potassium In soy sauce and kimchi was significantly higher in rural than urban area but that of soybean paste was significantly higher in urban than rural area. The level of NaCl in soy sauce, hochujang and kimchi was significantly higher in rural the urban area. The excretion amount of Na, K and NaCl in urine was significantly higher In rural than urban area. The between of blood pressure and the contents of Na in urine had a high correlation.

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Advances in the Preparation of Soy Protein and Lecithin Ingredients for Tomorrow's Foods

  • Beery, Kenneth E.
    • Proceedings of the Korean Society for Food Science of Animal Resources Conference
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    • 2002.05a
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    • pp.29-38
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    • 2002
  • Today's food technologist is receiving increasingly pointed directions in the “selection of”and often “minimum amounts of”ingredients to use in the development of new food products. This increasing emphasis by marketing on “label”claims is real and gaining momentum in most market places. Thus, the development of functional foods that are providing customers with new and distinct nutritional choices. The driving force for the increased direction of the food technologist is that many governments are now allowing health related label claims on food products. These health claims are a result of very clearly and focused research that shows known nutritional benefits. The regulatory environment is well focused on the results of this peer reviewed research. In the USA, FDA has allowed several opportunities for health claims including fiber, soy protein and choline. This presentation will focus on only two of many functional ingredient options-the soy proteins and lecithin(choline).

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