Abstract:
PURPOSE: A method for preparing 3,6-anhydro-L-galactose and galatose using Saccharophagus degradans 2-40 coenzyme is provided to determine detail culture condition. CONSTITUTION: A method for preparing 3,6-anhydro-L-galactose and galactose comprises: a step of culturing Saccharophagus degradans 2-40; a step of isolating a coenzyme from Saccharophagus degradans 2-40; a step of lyzing substrate using the coenzyme into galactose and 3,6-anhydro-galactose; a step of derivatizing the galactose and 3,6-anhydro galactose into N-methyl-N-(trimethylsilyl)trifluoroacetamide; and a step of performing gas chromatography/mass spectrometric analysis of the galactose and 3,6-anhydro galactose.
Abstract:
유기산과 초임계유체를 이용한 살균 방법이 제공된다. 본 발명에 따른 유기산과 초임계유체를 이용한 살균 방법은 살균대상 식품을 유기산 용액에 침지시키는 단계; 및 상기 유기산 용액에 침지된 식품을 초임계유체로 처리하는 단계;를 포함하며, 품질은 유지하면서 살균효과는 극대화할 수 있으며 살균공정의 경제성을 높일 수 있다.
Abstract:
카페인이 제거된 녹차 분말의 제조방법이 제공된다. 본 발명은 카페인이 최대한 제거되고 카테킨의 소실은 최소화되도록 확립된 최적 조건으로 초임계유체 추출하는 것을 특징으로 하며 본 발명에 따른면 녹차에 함유된 카페인은 최대한 제거하면서도 유용성분인 카테킨의 소실은 최소화하여 카페인만 선택적으로 제거된 녹차 분말을 제조할 수 있다.
Abstract:
A method for sterilizing microorganisms with super-critical carbon dioxide is provided to obtain satisfactory result of efficient extinction for microorganisms even when pressure and temperature as processing factors are relatively low in level by employing supercritical carbon dioxide with principle of extracting constitutional elements at low temperature without alteration of pH effect and shape of cells. The method comprises the steps of: entering a sample reactor at a setup temperature above supercritical temperature of 31.1deg.C; introducing liquid carbon dioxide into the reactor through a duct and pressurizing the reactor above supercritical pressure of 73.8 bar through a pump; closing a valve to maintain the desired temperature and pressure for a constant time in order to extinct microorganisms; opening the valve after the constant time, to remove supercritical carbon dioxide and to keep internal condition of the reactor under ordinary pressure; and opening the reactor and give the sample without the microorganisms.