• Title/Summary/Keyword: Organoleptic properties

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Improvement of Yields and Organoleptic Quality of Anchovy Extract by Alkali-Protease Hydrolysis (알칼리와 효소처리에 의한 멸치 추출액의 수율 및 관능적 성질의 향상)

  • Kim, Woo-Jung;Park, Joo-Young
    • Korean Journal of Food Science and Technology
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    • v.20 no.3
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    • pp.433-440
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    • 1988
  • Dried anchovy (Engraulis japonica) was ground and treated with 0.3N NaOH solution and then hydrolyzed with proteolytic enzymes. Extracts obtained by centrifugation of alkali-enzyme treated anchovy slurry was compared with water extract for the yields of soluble solid, protein and ashes and organoleptic characteristics. The data for the yields of the soluble solids, protein and ash showed that a 2-3 folds increase in those yields was resulted by combined alkali-enzyme treatments when it was compared to water only extract. The organoleptic evaluation on the alkali-enzyme treated anchovy extracts also showed a 2-3 folds in flavor strength of all descriptions in odor and taste and a significant improvement in total odor or taste acceptability.

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Antibacterial and Antioxidant Effect of Botanical Antimicrobial Agent-Citrus product on Pollack or Ascidian Fishmeat (식물성 천연항균처리에 의한 저장 명태와 우렁쉥이 어육제품의 항균 및 항산화효과)

  • Jung, Jun-Ho;Cho, Sung-Hwan
    • Food Science and Preservation
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    • v.10 no.3
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    • pp.401-405
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    • 2003
  • The antibiotic and antioxidant effect of botanical antimicrobial agent-citrus product(BAAC) prepared from citrus fruits were investigated by using fishmeats made from pollack and ascidian fillet. We inoculated Salmonella typhi into fishmeats that were aferwards treated with BAAC varying the concentration level (50-500ppm) including the control not-treated with BAAC. While specimens were stored at 5$^{\circ}C$ for designated period, we measured changes of total number of bacteria, peroxide level and textural properties. In addition, we performed organoleptic examination, focusing on appearance, texture and odor for fishmeats treated with BAAC and stored for designated period. For pollack and ascidian fishmeats, the initial total number of bacteria were 3.7${\times}$l0$^4$CFU/g and 7.5${\times}$l0$^4$CFU/g, respectively. After they were treated with 250 ppm of BAAC solution and stored for 5 days at 5$^{\circ}C$, the figures reduced to 2.5${\times}$l0CFU/g and 8.4${\times}$10CFU/g. No bacteria were found in fishmeats treated with above 500 ppm of BAAC, which remarkably proved antibiotic effect of BAAC solution. Furthermore, all the BAAC-treated specimens exhibited notable antioxidant effect. Fishmeats which were previously treated with 500 ppm of BAAC solution and stored for 30 days at 5$^{\circ}C$, showed the lower peroxide level of 16.5 meq/kg than 68.9 meq/kg in the control of pollack and 21.2 meq/kg than 80.7 meq/kg in the control of ascidian. In the results of texture and organoleptic evaluation we could also observe good effects of BAAC on maintaining the freshness of fisher products.

A mothers' perspective on fish and her child's fish consumption in Surakarta, Indonesia

  • Rahmawaty, Setyaningrum;Ramadhani, Farhanah Erwida;Anwar, Innani Kharisma;Puspitasari, Ola;Dewi, Tri Suci Kusuma;Meyer, Barbara J
    • Nutrition Research and Practice
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    • v.15 no.6
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    • pp.761-772
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    • 2021
  • BACKGROUD/OBJECTIVES: Understanding the factors associated with fish consumption is necessary to determine strategies to improve the fish consumption particularly those high in omega-3 long chain polyunsaturated fatty acids (n-3 LCPUFA). The aim of this study was to analyse the correlation between a mother's perspective on fish and actual fish consumption in their children. SUBJECTS/METHODS: Two hundred thirty-one elementary school children grade 3-6 and their mothers in Surakarta were recruited using multi stage random sampling for this study. Data was collected in July and August 2017. A validated questionnaire consisted of 3 topics including knowledge related to the health benefits and organoleptic properties of fish and cooking technique-related attitudes on fish were used to measure the mother's response to the fish properties. A validated food frequency questionnaire and a food picture book of fish specifically designed for the survey were developed and used to assess fish consumption of the children. A χ2 test was used to analyse the correlation between the mothers' perspective on fish and their children's fish consumption. RESULTS: The median fish consumption in children was 65 g/d with fried non-oily or lean fish, e.g., milkfish (locally called Bandeng) and catfish (locally called Lele) were consumed more than oily fish as well as processed fish products. Of all children, 31% met the fish consumption recommended by the Environmental Protection Agency-Food and Drug Administration 2017. There was no relationship between a mother's knowledge related to health benefits, organoleptic properties and cooking technique-related attitude toward fish and her child's fish consumption. CONCLUSIONS: The fish consumption of children is not influenced by their mother's perspective on fish. Nutrition education strategies are warranted to improve fish consumption and maintain the optimal benefits by consuming fish, including fish high in n-3 LCPUFA.

Microbial Diversity of Commercial Makgeolli and Its Influence on the Organoleptic Characteristics of Korean Rice Sourdough, Jeung-Pyun

  • Park, Jaehyung;Seo, Ji Sun;Kim, Seul-Ah;Shin, So-Yeon;Park, Jong-Hyun;Han, Nam Soo
    • Journal of Microbiology and Biotechnology
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    • v.27 no.10
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    • pp.1736-1743
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    • 2017
  • Sourdough is made by fermentation of dough by lactic acid bacteria (LAB) and yeast to improve bread properties like volume, flavor, and texture. A Korean traditional sourdough was made by fermenting rice flour with rice wine (makgeolli) and used to make sponge-like bread (jeung-pyun). The aim of this study was to investigate the microbial diversity of makgeolli products and their influence on the organoleptic quality of jeung-pyun. Three commercial makgeolli were tested for jeung-pyun production, with each product exhibiting varied dough swelling rates and organoleptic qualities, and among them, J-product was ranked highest in texture and taste. Microbial analysis of the three makgeolli also showed a big difference in their population and diversity. J-product had the highest LAB and yeast counts, and the predominant species were Lactobacillus casei, Lactobacillus brevis, Leuconostoc pseudomenteroides, and Saccharomyces cerevisiae. Using J-product, sourdough was fermented at $25^{\circ}C$, $30^{\circ}C$, and $35^{\circ}C$, and the microbial growth in and textural properties of jeung-pyun were examined by instrumental and sensory tests. At high temperature ($35^{\circ}C$), the rates of dough swelling and acidification were fast due to rapid microbial growth mainly caused by LAB, resulting in a short leavening time and soft and sour jeung-pyun. Sensory tests showed consumer preference for the soft and mild-sour jeung-pyun. This study shows that LAB in makgeolli play key roles in production of jeung-pyun, influencing the textural and sensory properties. For the production of high-quality jeung-pyun, development of LAB starters with high gas productivity and low acidity and establishment of an optimal fermentation procedure for rice dough are necessary.

Optimization on Pretreatment and Granule Tea Recipe of Polygonatum sibiricum Delar (둥굴레의 전처리 및 과립차 배합비 최적화)

  • 이기동
    • Food Science and Preservation
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    • v.11 no.2
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    • pp.148-153
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    • 2004
  • The organoleptic properties of granule tea was optimized for granulation of Polygonatum sibiricum Delar(Dunggulle) tea for exclusion of scorched smell and increase of consumption. The length of 2 mm was suitable to cutting size of Dunggulle for preparation of the roasted Dunggulle. The optimum sensory conditions for aroma of Dunggulle granule tea showing 7.85 organoleptic score were 80.61% in ratio of Dunggulle extracts to total extracts, 12.77% in content of total extracts and 37.33% in rate of glucose to total sugar. The highest score of overall palatability was 5.96 at 61.11% in rate of Dunggulle extracts to total extracts, 13.79% in content of total extracts, and 60.92% in rate of glucose to total sugar.

COMPARATIVE STUDY ON PANEER MAKING FROM BUFFALO AND COW MILK

  • Masud, T.;Athar, I.H.;Shah, M.A.
    • Asian-Australasian Journal of Animal Sciences
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    • v.5 no.3
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    • pp.563-565
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    • 1992
  • The objective of this study is to compare the qualitative and quantitative properties of paneer prepared from buffalo and cow milk. Paneer from buffalo milk had higher total solids as compared to cow. Moreover significant differences were recorded in fat and protein contents among tested samples of milk, cheese and whey respectively. The results of the organoleptic evaluations showed that paneer made from cow milk was liked more as compared to buffalo.

Enzymatic and/or chemical dosages coupled with the clarification of the sample applied to the screening evaluation of heat load in commercial milks

  • Humbert, Gerard
    • 한국유가공학회:학술대회논문집
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    • 2005.10a
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    • pp.11-19
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    • 2005
  • Heat treatment is essential for hygienic safety and for extending shelf-life of milk. Heating of milk affects principally its physicochemical, nutritional and organoleptic properties. The most important changes are the decrease in whey protein solubility and the decrease in stability of casein micelles. Maillard reactions are also important and undesirable consequences.

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Effects of Curing Methods on the Quality of Cured Leaves in Burley Tobacco (N. tabacum L.) (버어리종 건조방법이 건엽의 품질에 미치는 영향)

  • 배성국;조천준;임해건;김요태
    • Journal of the Korean Society of Tobacco Science
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    • v.20 no.1
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    • pp.26-32
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    • 1998
  • This study was conducted to obtain the basic information on the burley tobacco (Nicotiana tabacum L.) curing methods. The effects of the three kinds of curing methods on the dry weight losses during curing, chemical contents and physical properties of cured leaves, and organoleptic and smoking qualities were observed. The dry weight losses during curing was the highest in the stalk curing, and the lowest in the conventional priming. The longer the curing periods was, the more the loss of dry weight. The percent of the excessive dried leaves was high and the price per kilogram was low in the conventional priming. The chemical contents and the physical properties of the cured leaves in the conventional priming were similar to those of yellowing or browning stage of curing. But, the chemical contents and the physical properties of the cured leaves in the stalk curing were comparable to those of the air curing. The smoking quality was the best in the stalk curing.

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Physicochemical and Sensory Characteristics of Yanggaeng added with Turmeric Powder (울금가루 첨가에 따른 양갱의 이화학적 및 관능적 특성)

  • Lee, Sun Hee
    • The Korean Journal of Food And Nutrition
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    • v.26 no.3
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    • pp.447-452
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    • 2013
  • This study investigated the quality characteristics of Yanggaeng with different amounts (in ratios of 0, 1, 2, 4% to the total materials) of tumeric powders. The proximate composition and total polyphenol content, antioxidant activities, Hunter's color values, pH, Brix and sensory properties of tumeric hanging were examined. Results of analysis of the proximate composition analysis showed that ash content was increased significantly by adding turmeric powder and the more content of turmeric powder. The higher content of tumeric powder, the higher total polyphenol and total flavonoids contents. Brix and brightness were lowered and yellowness was increased. The sensory properties were highly rated for the control without turmeric powder in four organoleptic (sensory) properties (taste, texture, odor, acceptance) except color. The group with-1% addition of turmeric powder was highly rated in the second place.

Effects of Sensory Qualities of Ready-to-Eat Chicken Cooked by Different Culinary Methods and Gamma-irradiated at 10 kGy (조리 방법별 즉석 취식 닭고기의 조리 직후 감마선 조사가 관능적 품질에 미치는 영향)

  • Park, Kyung-Sook
    • Journal of Radiation Industry
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    • v.6 no.4
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    • pp.311-316
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    • 2012
  • The purpose of this study was to compare the sensory effects of different culinary methods such as electric pan cooking and charcoal roasting on gamma irradiated ready-to-eat chicken at 10 kGy. Evlauation of sensory properties were measured by estimating the organoleptic characteristics and physicochemical properties (TBARS, hardness and color different matters). The results showed that gamma irradiation after charcoal-roasting could more effectively moderate the decrease of sensory qualities and reduce off-flavor of ready-to-eat chicken than gamma irradiation after following electric pan cooking. These results suggest that gamma irradiation after charcoal broiling can be an effective culinary method for the preparation of ready-to-eat chicken.