Extraction and characterization of pectin from the peel powder of Aloe barbadensis

[摘要] In this study, pectin was extracted from aloe peel dried powder using acid extraction and alcohol precipitation method. The results showed that the amount of acid-insoluble ash, galacturonic acid, the loss on drying of pectin was 12.72%, 10.791% and 9.48%, respectively. There were several monosaccharides in the pectin, with the amount order of mannose > glucose > galactose > arabinose > rhamnose > fucose. This suggests that the method was suitable for the extraction of pectin from the aloe peel, but it still needs to be improved. Furthermore, the obtained aloe pectin had obvious ability of anti-oxidant, indicating that it might be a promising material for food and medicine. Our study will pave a new way for handling the aloe peel resource in the future.

[发布机构] Zhongkai University of Agriculture and Engineering, Guangzhou; 510225, China^1

[效力级别] 生物科学

[关键词] Acid extraction;Acid insoluble ash;Alcohol precipitations;Aloe barbadensis;Dried powder;Galacturonic acids;Loss-on-drying