• 제목/요약/키워드: protein quality evaluation

검색결과 707건 처리시간 0.03초

오디즙을 첨가한 녹말오디다식의 품질특성에 관한 연구 (Quality Characteristics of Starch Oddi Dasik Added with Mulberry Fruit Juice)

  • 이정희;우경자;최원석;김애정;김미원
    • 한국식품조리과학회지
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    • 제21권5호
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    • pp.629-636
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    • 2005
  • This study was carried out to investigate of the quality characteristics of the starch Oddi Dasik(MSOD) manufactured with various addition levels (0, 5, 10, 18 and 28%) of mulberry fruit (Oddi) juice (MFJ), with various levels(55%, 50%, 45%, 37% and 27%) of sucrose syrup, and with the ratio of rice powder: mungbean starch (1:4) according to the traditional Korean Dasik (a kinds of cookie) methodology. The nutritional components of Oddi and MSOD were examined, and sensory evaluation and physical tests of MSOD added MFJ were conducted. The results are summarized as follows. In Oddi, the contents of moisture, crude fat, crude protein, crude ash, and vitamin C, and the levels of acidity, pH and sugar were 88.45%, 0.245%, 2.23%, 0.88%, 53.20 mg%, 8.00%, 4.41 and 11.0 Brix%, respectively. In MSOD (Oddi 10%), the contents of moisture, crude fat, crude protein, and crude ash, were 22.8%, 0.117%, 9.2% and 0.8%, respectively, and were all increased with increasing MFJ amount. In MSOD (Oddi 10%), the contents of Ca, Mg, K and Fe were 63.2 mg%, 70.9 mg%, 376.0 mg% and 7.7 mg%, respectively. and were increased with increasing MFJ amount. For the establishment of the additional amount of MFJ, sensory evaluation and physical tests were conducted. From the total characteristics of sensory evaluation, the MSOD with 10% MFJ was judged as the best. Color L and b values of MSOD significantly decreased and a value increased with increasing MFJ percentage. Hardness, gumminess, adhesiveness and chewiness among the texture characteristics of MSOD were significantly increased with increasing MFJ amount. However, there were no significant differences in springiness and cohesiveness of the MSOD. In conclusion, the optimal added amount of MFJ for the manufacture of the MSOD was proposed to be 10% of the total weight.

곰취분말을 첨가한 두부의 품질특성 (Quality Characteristics of Tofu Added Ligularia fischeri Powder)

  • 박복희;김미;전은례
    • 한국식생활문화학회지
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    • 제28권5호
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    • pp.495-501
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    • 2013
  • The quality characteristics of tofu added Ligularia fischeri powder (LFP) were investigated. The proximate composition of LFP used was as follows: moisture, 7.7%; crude protein, 12.0%; crude lipid, 5.9%; crude ash, 14.1%; and carbohydrate, 60.3%. The yield of tofu added LFP increased with the addition of LFP. However, there was a significant decrease in pH (from $6.03{\pm}0.11$ in the control to $5.78{\pm}0.11$ when 0.4% LFP was added) and a significant increase (from $2.60{\pm}0.01$ in the control to $2.85{\pm}0.10$ when 0.4% LFP was added) in total acidity. In addition, the L, a, and b values of tofu decreased with the increasing addition of LFP. In terms of textural properties, the hardness, cohesiveness, and brittleness increased, whereas springiness decreased, with the increasing addition of LFP. In the sensory evaluation, the overall preference for tofu added 0.3% LFP was the highest. According to the results, the addition of LFP positively affects the overall sensory evaluation of tofu, and 0.3% is the optimal level for addition.

경북지역 브랜드쌀의 품질 특성 (Grain Quality of Commercial Brand Rice Produced in Kyungpook Province)

  • 곽영민;김채은;손재근;강미영
    • 한국작물학회지
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    • 제51권7호
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    • pp.645-651
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    • 2006
  • 경북지역에서 브랜드 쌀로써 시판되는 쌀 21종류의 품질 특성과 미질과의 관계를 분석한 결과 단백질 함량이 낮을수록 식미치는 높았고, 수분함량이 낮은 품종의 쌀로 취반 하는 경우 밥의 덩어리진 정도에 대한 기호도가 높았다. 그리고 취반 밥의 색상에 대한 기호도는 완전립의 비율이 높을수록 좋았다. 단백질의 함량이 높은 쌀로 취반하는 경우 구수한 냄새에 대한 기호도가 높았으며, 수분함량이 높은 쌀로 취반하는 경우 씹힘성에 대한 기호도는 좋았다. 그리고 아밀로오스 함량이 낮은 품종의 쌀로 취반하는 경우 씹힘성에 대한 기호도는 좋았다.

관능검사를 통한 ESL(Extended Shelf Life)우유와 non-ESL우유의 품질 비교 (Comparison of Quality of ESL and non-ESL Milk Depending upon Sensory Evaluation)

  • 한미영;정병문;김응률;김완식;정후길;전호남;여경은
    • Journal of Dairy Science and Biotechnology
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    • 제21권2호
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    • pp.81-87
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    • 2003
  • 우유의 여러 가지 품질 평가방법 중에서 소비자의 입장에서 중요한 기준이 되는 관능검사를 통해서 ESL우유와 non-ESL우유의 품질을 비교하여 그 차이점을 확인하였다. ESL우유의 1개사 제품과 non0ESL우유 4개사 제품을 $5^{\circ}C$$10^{\circ}C$에서 시료의 pH 및 적정산도는 그 변화가 크지 않았으며, 유성분인 fat, protein, lactose의 변화 역시 크지 않았다. 반면에 관능적으로 평가된 신섬함은 보존 5일차에 가장 신선하게 나타났다. ESL우유와 non-ESL우유의 QDA(quantitative descriptive analysis) diagram에 따르면, 동일한 조건상에서 저장지간 중 non-ESL우유의 관능적 품질 저하가 ESL우유보다 컸으며, 그 정도는 $10^{\circ}C$에서 두드러졌다. 우유의 신선도 평가 기준인 FFA(free fatty acid)와 관능적으로 느끼는 신선도 상의 상관분석을 통해서, 우유의 신선도는 FFA보다 우유의 풍미 및 미생물적 부패와 상관관계가 크다는 것으로 확인되었다. 결론적으로 우유의 신선도 결정에는 관능적 풍미가 가장 중요한 기준이 되며, non-ESL우유보다 ESL우유가 보존기간 중 신선함이 오래 지속되는 것으로 확인되었다.

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기능성 식품을 첨가한 청포묵의 관능적 품질특성(뽕잎가루, 콩가루, 쑥가루) (Quality Characteristics of Mung bean Starch Gels added with mulberry leaves powder, yellow soybean powder and mugwort powder)

  • 김애정;임영희;김명희;김미원
    • 한국식품조리과학회지
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    • 제18권6호
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    • pp.567-572
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    • 2002
  • The effects of adding mulberry leaves powder, yellow soybean powder(YSP), and mugwor powder(MP) for the preparation of mungbean starch gels(MSG) were studied. MSG with above additives were analysed for proximate composition. sensory evaluation, chromaticity, and rheometric properties. In the proximate composition test, the moisture content was the highest in the MSG with 0.5% MP, and the crude protein content war the highest in MSG with 1.0% YSP. In the sensory evaluation, MSG with various additives showed higher values than control. Whereas MSG with 0.5% additives showed a high value in hardness, control gels showed high values in the gumminess and brittleness in the measurement with a rheometer.

헛개 열매 농축액 첨가에 따른 콩다식의 품질 특성 (Quality Characteristics of Soybean Dasik Containing Different Amount of Hovenia dulcis Thunb. Extract)

  • 황수정
    • 동아시아식생활학회지
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    • 제21권4호
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    • pp.520-525
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    • 2011
  • This experiment was conducted to evaluate the quality characteristics of soybean Dasik containing different amounts of Hovenia dulcis Thunb. extract, and the results were as follows. In general components, the contents of moisture and crude protein increased with an increased amount of Hovenia dulcis Thunb. extract, whereas the crude fat content showed a tendency to decrease. The ash content was, however, not significantly different. In chromacity, the value of L, lightness, constantly decreased with an increase in the amount of added extract, whereas the a and b values increased. The hardness and gumminess decreased with an increase in the amount of extract added, whereas the springiness, cohesiveness, and chewiness increased. In sensory evaluation, the Dasik added with 20% of Hovenia dulcis Thunb. extract showed the highest score, and was evaluated as the best formulation for overall acceptability.

황기 농축액을 첨가한 절편의 품질특성 (Quality Characteristics of Jeolpyon containing Astragalus membranaceus extract)

  • 황수정;안종철
    • 한국식품조리과학회지
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    • 제24권2호
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    • pp.266-271
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    • 2008
  • In this study, Jeolpyon(imprinted with flow patterns) was prepared with different amount of added Astragalus membranaceu extracts(0%, 3%, 6%, 9% and l2%)and then the quality and sensory characteristic effects were examined. All togather the chemical composition of the samples was as follows: $53.l2{\pm}0.04%$ of moisture, $l4.43{\pm}0.05$ crude protein, $7.6l{\pm}0.11%$ crude fat, and $21.35{\pm}0.09%$ crude ash. Hardness and cohesiveness significantly increased(p <0.001), and springiness, chewiness and adhesiveness decreased, with increasing amounts of Astragalus membranaceus extract. In the chromaticity analysis, the L-value(brightness)significantly decreased with increasing Astragalus membranaceus extract content, and the b-value(yellowness) increased in direct proportion to the extract content. Finally, in the sensory evaluation, the Jeolpyon containing 9.0% extract received the highest overall preference scores.

편의점 도시락의 식단형태별, 가격대별, 편의점 브랜드별 영양성분 함량 평가 (Evaluation of Nutritional Content in Convenience Store Lunchboxes by Meal Type, Price, and Store Brand)

  • 박진선;한영희;현태선
    • 대한지역사회영양학회지
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    • 제25권4호
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    • pp.280-290
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    • 2020
  • Objectives: This study investigated the menu and nutritional contents of convenience store lunchboxes, and evaluated the nutritional content by meal type, price, and store brand. Methods: In September 2019, 93 convenience store lunchboxes from the top five franchise stores were purchased. Relevant information on price, food weight, food ingredients, cooking methods, and nutrition labeling were subsequently collected. Nutritional content was evaluated based on the daily value (DV) and Index of Nutritional Quality (INQ), and energy contribution of carbohydrate, protein, fat, saturated fat and sugar was compared with the recommended range. Results: Most lunchboxes included the food groups; grains/starches, meats/fish/eggs/legumes, and vegetables. However, none provided fruits, and only a few lunchboxes provided milk/milk products. Stir-frying, deep-frying, and pan-frying were the most frequent methods of cooking. The average energy content of the lunchboxes was 736.6 kcal, whereas the average contents of protein, fat and saturated fat were higher than 40% of the DV, and sodium content was 66.8% of the DV. The contents of most nutrients in traditional type lunchboxes were higher, as compared to nutrients in onedish type lunchboxes. Considering pricing of lunchboxes, protein and sodium contents were higher in the higher-priced lunchboxes as compared to lower-priced lunchboxes, but there were no differences in the INQs. The contents of energy, protein, fat, saturated fat, and cholesterol significantly differed by brand. Conclusions: Our results indicate that convenience store lunchboxes contain high levels of protein, fat, saturated fat, and sodium. The nutritional contents differed by meal type, price, and store brand, and higher price did not imply higher nutritional quality. We propose the need to educate consumers to check nutrition labels and purchase appropriate lunchboxes. Manufacturers also need to make efforts to reduce the amounts of fat, saturated fat, and sodium, and not provide protein in excess.

단백질 분해효소로 원료 처리하여 제조한 효소분해 간장의 특성 (Production and Characteristics of Enzymatically Hydrolyzed Soy Sauce by the Treatment Using Proteases)

  • 채희정;인만진;김민홍
    • 한국식품영양과학회지
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    • 제26권5호
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    • pp.784-787
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    • 1997
  • Enzymatically hydrolyzed soy sauce(eHSS) was prepared by the treatment of defatted soy flake using two types of proteases, followed by maillard reaction and formulation with some ingredients. The eHSS was mixed with fermented soy sauce(FSS) to make enzymatically hydrolyzed mixed soy sauce(eHMSS). The properties and sensory characteristics were evaluated and compared with commercially available soy sauces. The control of salt and total nitrogen contents in eHSS and eHMSS was easy, and the production of soy sauce of low salt and high protein was possible. However, the free amino acid content of eHSS was lower than FSS. due to lower degree of hydrolysis. In sensory evaluation, the eHSS have no loss taste and overall acceptance than FSS. Consequently, the eHSS and eHMSS have the potential for use with FSS to produce high quality soy sauce of low salt and high protein contents.

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Evaluation of various fish meals as dietary protein source for juvenile flounder (Paralichthys olivaceus)

  • Lee, Sang-Min;Jang, Hyun-Seok
    • 한국어업기술학회:학술대회논문집
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    • 한국어업기술학회 2003년도 춘계 수산관련학회 공동학술대회발표요지집
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    • pp.173-174
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    • 2003
  • Dietary proteins are the most important factors affecting growth performance of fish and feed cost. Generally, most of the formulated diets for marine fish include a large amount of fish meal as a protein source because of its high nutritive value and palatability. Quality of fish meal in diet may affect on growth and feed efficiency of fish. Therefore, this study was conducted to evaluate the effect of various fish meals as dietary protein source on growth and feed utilization of the juvenile flounder. (omitted)

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