Many of these natural products have biological activity. For example, the ascorbylated indole derivative ascorbigen, found in Brassica vegetables, can induce quinone reductase and thus may have a role in cancer chemoprevention.Thus, we hypothesize that ascorbic acid has important biological relevance ...
Ascorbic acid, also known as Vitamin C, is an essential nutrient that possess antioxidant activity. It can protect compounds from free radicals both in extracellular and intracellular spaces of biological systems. However, ascorbic acid is characterized by low thermal stability and easily oxidized. Dur...
Studies the polarized expression of the sodium-ascorbic acid transporter SVCT1 in post-confluent differentiated CaCo-2 cells. Use of vitamin C by human cel... Maulén,Nancy,P.,... - 《Journal of Biological Chemistry》 被引量: 114发表: 2003年 Ascorbic acid: effect on ongoing iron absorption...
(scurvy). The acidic character is because of the two enolic hydroxyls; the C3hydroxyl has a pKa value of 4.1, and the C2hydroxyl has a pKa of 11.6. All biological activities reside in L-ascorbic acid; therefore, all references to vitamin C, ascorbic acid, ascorbate, and their derivatives...
WE have already reportedthat the spleen, kidney and liver tissues of the rat are able to form significant amounts of ascorbic acid, as determined titrimetrically, when incubated with mannose for three hours at pH. 7.4 at 37掳. The brain, heart-muscle and leg-muscle tissues of the rat ...
Ascorbic acid has two forms, L-type and D-type, but the latter has no biological activity. L-Ascorbic acid We call Vitamin C in the market is usually the L form. L type can be derived from both natural (fruits and vegetables) and synthetic manufacturing process. It is commonly produced...
Ascorbic AcidPlantsIN a previous letterwe pointed out that the liver tissues of the rat, rabbit and pigeon are able to synthesise ascorbic acid from mannose in vitro, while those of the guinea pig and monkey are unable to do so. Further experiments indicate that this power is not common to...
Measurement of ascorbic acid and glutathione peroxidase activity in biological samples collected from recurrent airway obstruction affected horses and their controls.ascorbic acid, relapse, biomarkers, respiratory tract diseases, erythrocytes, enzyme activity, remission, disease control, leukocytes, horse ...
英文名称:Ascorbic acid染料 型号:12050 品牌:Lumiprobe 保质期:24 个月 lumiprobe corporation是美国一家高品质生物技术公司,专业提供分子生物学研究用的活性荧光染料。从2006年开始,公司生产并销售生命科学研究和诊断学应用的优质化学药品。产品主要有:活性染料(reactive dye)和sybr green i 染料,用于寡核苷酸合成的亚...
Since the discovery of vitamin C, the number of its known biological functions is continually expanding. Both the names ascorbic acid and vitamin C reflect its antiscorbutic properties due to its role in the synthesis of collagen in connective tissues. Ascorbate acts as an electron-donor keeping ...