• Title/Summary/Keyword: apple polyphenol

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Changes in Quality Characteristics of Seasoned Soy Sauce Treated with Superheated Steam and High Hydrostatic Pressure during Cold Storage (과열증기와 초고압 처리법을 적용한 간장 소스의 냉장저장 중 품질 특성 변화)

  • Choi, Yoon;Oh, Ji-Hye;Bae, In-Young;Cho, Eun-Kyoung;Kwon, Dae-Joong;Park, Hae-Won;Yoon, Sun
    • Korean journal of food and cookery science
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    • v.29 no.4
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    • pp.387-398
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    • 2013
  • Seasoned soy sauce is one of the popular seasoning sauces added to the Korean traditional foods such as Bulgogi, Galbi. However, industrially processed sauces have poor sensory quality because of heating treatment for sterilization. The purpose of this study was to develop seasoned soy sauce having fresh taste and good quality by applying superheated steam (SHS) and high hydrostatic pressure (HHP) technologies. To maintenance the sauce qualities, food materials such as apple, onion, and garlic were pretreated with SHS (heater $100^{\circ}C$, steam $280^{\circ}C$, 30 s~1 min 30 s) before mixing with other ingredients. During storage of 7 days, color, pH, and browning potential of SHS treated samples (apple, onion and garlic) did not change and also polyphenol oxidase was inactivated (p<0.05). The seasoned soy sauce including SHS treated materials was sterilized by thermal process ($85^{\circ}C$, 30min) or non-thermal process, HHP (550 MPa, $5{\sim}10^{\circ}C$, 3 min). In SHS+HHP treated sauce, salinity, sugar contents, lightness, viscosity did not change (p<0.05), and total viable cell counts were detected below 4 log cycle at $5^{\circ}C$ for 30 days. E.coli and B.cereus are not determined in all samples. In sensory evaluation, Bulgogi prepared with SHS+HHP treated sauce was more acceptable than others.