Chemistry Journal of Moldova

PHYTOCHEMICAL COMPOSITION AND ANTIOXIDANT PROPERTIES OF UNRIPE APPLES

Author(s):

Diana Crucirescu


Field: Food chemistry
Type: Research paper
Pages:
Keywords:

unripe apples, organic acids, carbohydrates, total polyphenolic content, antioxidant activity.


 
https://doi.org/10.19261/cjm.2024.1244

Graphycal Abstract: Apples of the Coredana, Golden Rezistent, Reglindis and Rewena varieties were studied. The quantitative and qualitative determination of organic acids and carbohydrates were using HPLC and CE methods. Determination of AA and TPC content was evaluated by spectrophotometric methods. The highest amount of organic acids was obtained in the 45th DAFB of harvest, the predominant being malic acid (15.09-21.64 g/100gDW). Sugars had the highest value in 97th DAFB, fructose being the main one (67.79-75.73 g/L). TPC and AA showed maximum values at the beginning of fruit harvesting, having 916.67-1316.13 mgGAE/100gDW and 16.94-23.51 mgAAE/100gDW, respectively. Unripe apples represent a natural source of organic acids and carbohydrates, significant amounts of polyphenolic compounds with antioxidant properties.