Evaluation of Antioxidant ability for four Traditional Chinese Herbs with Detoxification Function
329
Presented by: Miin Chiu
Evaluation of Antioxidant ability for four Traditional Chinese Herbs with Detoxification Function
Chiu, Miin1; Li, Xin-Yu1; Chiu, Hui-Ju1
National Tainan Junior College of Nursing, Department of applied cosmetology, Tainan City, Taiwan
Abstract
Introduction
In recent years, Chinese herbs have already been reported as having antioxidant effects . The objectives of this study are to identify that Artemisia capillaris(Ac)、Lygodium japonicum(Lj)、Pyrrosia lingua(Pl)、Alisma plantago-aquatica(Apa) four Chinese herbs with detoxification function had antioxidant ability or not.
Methods
In this study, four methods were used for evaluation of antioxidant ability. First two methods were for direct measurement of radical scavenging activity and the reducing power, in additional to evaluate the total phenol and total flavonoid content.
Results
1. The pH value of four Chinese herb extracts were in the range of 5.5 to 6.5.
2. The DPPH radical scavenging activity of Artemisia capillaris and Pyrrosia lingua aqueous extracts were higher than that of Vitamin C.
3. The potency of scavenging free radical for Artemisia capillaris alcoholic extract is the same as the synthetic antioxidant butylated hydroxy anisole (BHA) and had the strongest ferric reducing power than the other Chinese herbs because of the highest total flavonoid content.
4. No matter aqueous or alcoholic extract of Artemisia capillaris that the reducing ability were about the same as BHA.
5. The total phenol content of all Chinese herb extracts was not so much.
6. The alcoholic extracts of Artemisia capillaris and Alisma plantago-aquatica contained quite high dosage of total flavonoid content
7. The aqueous extract of Pyrrosia lingua showed the largest total flavonoid content in four aqueous extracts resulting in the strong antioxidant ability.
Conclusions
1. The aqueous extract of Artemisia capillaris had quite high extraction rate, and its antioxidant power was the strongest in the four aqueous extracts, followed by Pyrrosia lingua.
2. The Artemisia capillaris alcoholic extract was the strongest antioxidant, but its extraction rate was only 1/3 that of water extract, which is one of worth considering factors in the future application.
3. Although alcoholic extract of Alisma plantago-aquatica had the highest dose of total flavonoids, it didn’t show on the strongest antioxidant power.
4. Because Artemisia capillaris and Pyrrosia lingua had the dual effects of antibacterial and antioxidant, they are worth chosen as raw materials of skin care cosmetics preparation.
Chiu, Miin1; Li, Xin-Yu1; Chiu, Hui-Ju1
National Tainan Junior College of Nursing, Department of applied cosmetology, Tainan City, Taiwan
Abstract
Introduction
In recent years, Chinese herbs have already been reported as having antioxidant effects . The objectives of this study are to identify that Artemisia capillaris(Ac)、Lygodium japonicum(Lj)、Pyrrosia lingua(Pl)、Alisma plantago-aquatica(Apa) four Chinese herbs with detoxification function had antioxidant ability or not.
Methods
In this study, four methods were used for evaluation of antioxidant ability. First two methods were for direct measurement of radical scavenging activity and the reducing power, in additional to evaluate the total phenol and total flavonoid content.
Results
1. The pH value of four Chinese herb extracts were in the range of 5.5 to 6.5.
2. The DPPH radical scavenging activity of Artemisia capillaris and Pyrrosia lingua aqueous extracts were higher than that of Vitamin C.
3. The potency of scavenging free radical for Artemisia capillaris alcoholic extract is the same as the synthetic antioxidant butylated hydroxy anisole (BHA) and had the strongest ferric reducing power than the other Chinese herbs because of the highest total flavonoid content.
4. No matter aqueous or alcoholic extract of Artemisia capillaris that the reducing ability were about the same as BHA.
5. The total phenol content of all Chinese herb extracts was not so much.
6. The alcoholic extracts of Artemisia capillaris and Alisma plantago-aquatica contained quite high dosage of total flavonoid content
7. The aqueous extract of Pyrrosia lingua showed the largest total flavonoid content in four aqueous extracts resulting in the strong antioxidant ability.
Conclusions
1. The aqueous extract of Artemisia capillaris had quite high extraction rate, and its antioxidant power was the strongest in the four aqueous extracts, followed by Pyrrosia lingua.
2. The Artemisia capillaris alcoholic extract was the strongest antioxidant, but its extraction rate was only 1/3 that of water extract, which is one of worth considering factors in the future application.
3. Although alcoholic extract of Alisma plantago-aquatica had the highest dose of total flavonoids, it didn’t show on the strongest antioxidant power.
4. Because Artemisia capillaris and Pyrrosia lingua had the dual effects of antibacterial and antioxidant, they are worth chosen as raw materials of skin care cosmetics preparation.