Antioxidant{0}Ascorbic Acid

Ascorbic acid ko bitamin C shine monosaccharide oxidation - rage rage shuke-shuke da dabbobi. A lokacin juyin halittar primates, maye gurbi ya haifar da asarar wani enzyme da ake buƙata don haɗin bitamin C a cikin jiki, don haka dole ne ɗan adam ya ɗauki bitamin C daga abinci. Yawancin sauran dabbobi suna da aikin hada bitamin C a cikin jiki kuma basu buƙatar kari da abinci. Ta hanyar oxidizing L- ragowar proline don samun 4-hydroxy{7}}L-proline, procollagen na iya juyar da shi zuwa collagen. Wannan tsari yana buƙatar shiga cikin bitamin C. Vitamin C mai oxidized shine furotin a cikin wasu sel. Disulfide isomerase (protein disulfide isomerase, PDIA) da glutaredoxins (glutaredoxins) ana yin su ta hanyar rage glutathione. Vitamin C shine mai rage redox mai kara kuzari wanda zai iya kawar da nau'in oxygen mai aiki kamar hydrogen peroxide. Bugu da ƙari ga tasirin antioxidant kai tsaye, bitamin C kuma shine tushen reductase ascorbate peroxidase (ascorbate peroxidase), wanda ke taka muhimmiyar rawa a juriya na shuke-shuke. Vitamin C gabaɗaya yana samuwa a sassa daban-daban na shuke-shuke a cikin babban abun ciki, musamman ma'auni a cikin chloroplast zai iya kai 20mmol/L.