Abstract:
본 발명은 효소 발효차의 발효 최고점 판단 방법에 관한 것으로, 찻잎을 원료로 하여 발효차 제조 과정 중 색조와 성분의 변화를 모니터한 결과 적색도 및 황색도의 최고점과 산화 생성물인 테아플라빈 생성 최고점이 일치함을 발견하였으며, 이 최고점은 발효도 100%에 해당하여 효소 발효차의 발효 최고점 판단 방법을 제공한다. 발효차, 발효 최고점 판단, 카테킨, 테아플라빈, 색조, 고성능액체크로마토그라피
Abstract:
PURPOSE: An antibacterial composition containing amphipathic gallol derivatives is provided to ensure antioxidation in a cell membrane with low irritation. CONSTITUTION: An antibacterial composition contains an amphipathic gallol derivative of 1,2,3-trihydroxy- 4-alkylbenzene(T-OH_4R) derivatives as an active ingredient. The amphipathic gallol derivative is 4-pentylgallol, 4-pentyl-1,2,3-benzenetriol(PG), 4-pentadecylgallol(PDG), or 4-eicosylgallol, 4-eicosyl-1,2,3-benzenetriol(EG). The antibacterial composition has antibacterial activity against gram-positive bacteria including Staphylococcus aureus and Staphylococcus epidermidis; gram-negative bacteria including Escherichia coli, Pseudomonas aeruginosa, and Bacillus subtilis; and pathogen including Helicobacter pylori.
Abstract:
PURPOSE: A method for isolating salvianolic acid B from Salvia miltiorrhiza root methanol extract is provided to ensure high yield of the salvianolic acid B and to enhance availability to circulatory system diseases treatment. CONSTITUTION: A method for isolating salvianolic acid B from Salvia miltiorrhiza root methanol extract comprises: a step of suspending Salvia miltiorrhiza root crude extract with water and eluting with chloroform; a step of separating the extract to chloroform layer and water layer to remove lipid ingredient; a step of adjusting the water layer with trifluoreacetic acid; a step of fractioning the water layer with ethyl acetate; and a step of performing sepadex LH-20 column chromatography to obtain salvianolic acid B-containing fraction.
Abstract:
PURPOSE: A method of determining a maximum fermented point of enzyme-fermented tea is provided to determine a location of the maximum fermented point in which a fermentation degree of the tea reaches 100% in a manufacturing process of Camellia sinensis leaves. CONSTITUTION: A method of determining a maximum fermented point of enzyme-fermented tea comprises a step for determining the highest point of a fermentation degree of fermented tea after checking redness, yellowness, optical extinction of wavelength 400-440 nm, and a theaflavin-forming highest point in a manufacturing process of enzyme fermentation tea.
Abstract:
본 발명은 합성 우루시올 유도체에 관한 것으로, 보다 구체적으로는 옻나무 ( Rhus verniciflua Stokes) 수액의 주성분으로 알러지 유발 원인 물질인 우루시올의 기본 골격 중 측쇄탄화수소의 길이를 달리하여 즉 천연 우루시올 유도체의 측쇄탄화수소보다 더 길거나 더 짧은 측쇄탄화수소를 갖도록 알러지 비유발성으로 합성된 우루시올 유도체를 유효성분으로 포함하는 식품부패방지용 항균조성물 및 병원균 예방 및 치료용 항균조성물에 관한 것이다. 우루시올(urushiol), 항균활성, 알러지, 식품부패균, 병원균