Abstract:
본 발명은 갈롤 (gallol, pyrogallol) 유도체들의 항균활성에 관한 것으로, 보다 구체적으로는 갈롤을 기본 골격으로 유지하면서 그 갈롤의 4위에 다양한 길이의 측쇄탄화수소를 결합시킴으로써 양친매성을 갖도록 하여 저자극성이고 세포막 내에서 우수한 항산화활성을 나타내고 식품부패균과 병원균에 대한 항균활성을 갖는 양친매성 갈롤 유도체를 유효성분으로 포함하는 항균제조성물에 관한 것이다.
Abstract:
The present invention relates to a malaxinic acid and a method for purifying the same and, more specifically, to a method for purifying a malaxinic acid containing an unripe pear characterized by being purified from an unripe pear, and to a malaxinic acid containing an unripe pear purified by the purifying method. The unripe pear contains plenty of malaxinic acid compared to a ripe pear. It is confirmed that the unripe pear is the optimal ingredient for purifying malaxinic acid by confirming that the content of malaxinic acid is reduced in an overripe pear.
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 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.