Warning: error_log(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /home/bdurrell/public_html/assetise.com/error/error.php on line 115 Warning: error_log(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /home/bdurrell/public_html/assetise.com/error/error.php on line 115 Warning: error_log(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /home/bdurrell/public_html/assetise.com/error/error.php on line 115 Warning: error_log(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /home/bdurrell/public_html/assetise.com/error/error.php on line 115 Warning: error_log(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /home/bdurrell/public_html/assetise.com/error/error.php on line 115 [Noah's Classifieds] - Antioxidant Ability and Stability Studies of 3-O-Ethyl Ascorbic Acid
Please register or log in.
Item details add to favorites
Category Cars
No Picture
Created 2019-10-30
Owner freemexy
Title Antioxidant Ability and Stability Studies of 3-O-Ethyl Ascorbic Acid
Description Antioxidant Ability and Stability Studies of 3-O-Ethyl Ascorbic Acid 3-O-Ethyl-L-Ascorbic Acid, or Ethyl Ascorbic Acid is a molecule produced by modifying Ascorbic Acid, commonly known as Vitamin C. This modification is done to increase the molecule’s stability and enhance its transport through skin, as pure Vitamin C is easily degraded. In the body, the modifying group is removed and Vitamin C is restored in its natural form. Thus, Ethyl Ascorbic Acid retains the benefits of Vitamin C, such as antioxidant activity. Furthermore, it is even more potent in reducing skin darkening after UV exposure. It even has some additional effects, not observed in pure Ascorbic Acid, such as promoting nerve cell growth or reducing chemotherapy damage. Finally, the slower release also ensures that no toxic effects are observed when using this Vitamin C derivative.3-O-Ethyl-L-Ascorbic Acid 3- O -ethyl ascorbic acid may be a good whitening ingredient in cosmetics. However, before it can be successfully used in cosmetics, its biofunctionality and stability need to be comprehensively investigated. The reduction and 2,2-Diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging ability of this compound were analyzed to assess its antioxidant potential. In addition, the tyrosinase inhibitory ability was analyzed to show the whitening capacity of 3- O -ethyl ascorbic acid. Response surface methodology (RSM) was used to determine the optimal conditions for the ascorbic acid derivative in cosmetics. Based on the DPPH radical scavenging ability results, the half-inhibitory concentration (IC 50 ) value of 3- O -ethyl ascorbic acid was 0.032 g\/L. It also showed a good reducing ability at 1.5 g\/L concentration. Based on the tyrosinase inhibition analysis, the IC 50 value was 7.5 g\/L. The optimal conditions to achieve the best stability were determined from the RSM as 36.3°C and pH 5.46.
Consumption  
Broken No
Price  
Promotion level None
Reply to this posting
Email this to a friend