Antioxidant Activity According to Each Kind of Natural Plant Pigments

Abstract

-The objective of this study was to determine the effect of antioxidant enzyme activity and radical scavenging activities of thirteen kinds of natural plant pigments. The analytic method of antioxidant activities were measured by estimating DPPH free radical scavenging and nitrite scavenging ability activity. The free radical scavenging activity by method using stable free radical DPPH was the highest in the red cabbaged pigment. Addition of ethanol extract 1㎎/㎖ from onion peel pigment displayed remarkable effect on nitrite scavenging ability about 91.9%. Antioxidative enzyme activity was evaluated in terms of superoxide dismutase(SOD), catalase(CAT), and ascorbate peroxidase(APX) activity. The bitter melon pigment had the highest SOD activity of 87.3%. The activities of CAT and APX were higher in the mulberry leave pigment compared with other natural plant pigments. In contrast, CAT activity of plant pigment samples were unaffected. These results suggest that natural plant pigment had the potent biological activities such as antioxidant enzyme activities, and that their activities exhibited differently depending on each kind of pigments.

Evaluation of Antioxidant and Anti-Inflammatory Activities of Ascidian Tunic Carotenoids As a Source of Color Cosmetics

“…천연색소는 합성색소에 비해 환경오염에 미 치는 영향이 적고 인체에 대한 독성이 현저히 낮으며 항균, 항암, 항염 등의 효능이 있는 것으로 알려져 있다 [8][9][10]. 또 한 색상이 자연스럽고 우아하며 변색 또는 퇴색이 되어도 색 감이 안정적이어서 은은한 색상을 낼 수 있을 뿐만 아니라 재료의 성질에 따라 다양한 색상을 얻을 수 있다는 장점이 있다 [11].…”

Charactrization of Biological Activities of Rehmannia glutinosa Extracts

“…최근 약용작물의 2차 대사산물들이 생체에서 나타 내는 생리활성들에 대한 연구가 활발히 진행되고 있고 [18,23,34], 약용식물자원에서 항알레르기, 항산화, 항균 및 항 생활습관병 등의 약리성 물질 탐색과 이들 유용성분을 이용하 려는 연구가 활발하게 진행되고 있다 [3,36].…”

Antioxidant Activity of Saururus chinensis Pretreated by Mechanochemical Technology - Nitrite Scavenging and Electron Donating Ability -

“…When nitrite reacts with amine in the stomach, it produces cancercausing substance. However, nitrite scavenging ability by natural plant extracts is high in the solution of pH 1.2 which is similar condition of gastric juice of human body (Boo et al, 2011).…”

“…This result is consistent with the previous results for the extraction of onion peel, redbeet, yellow gardenia, mature foxglove and etc. (Al-Dabbas et al, 2007;Boo et al, 2011).…”

“…According to the standard method (Boo et al, 2011), after 1 mL of sample was inserted into the reagent 1 mM of NaNO2, and using the 0.1N HCl and 0.2M buffering citric acid, pH was controlled to have 1.2, 3.0 and 6.0 each making the total Fig. 2.…”