title: Changes in the color, chemical stability and antioxidant capacity of thermally treated anthocyanin aqueous solution over storage.
abstract: Many anthocyanin-containing foods are thermally processed to ensure their safety, and stored for some time before being consumed. However, the combination of thermal processing and subsequent storage has a significant impact on anthocyanins. This study aimed to investigate the color, chemical stability, and antioxidant capacity of thermally treated anthocyanin aqueous solutions during storage at 4, 25, 45, and 65 °C, respectively. Anthocyanin aqueous solutions were thermally treated before storage. Results showed that the degradation rate of anthocyanins in aqueous solutions was much faster than those in real food. The color of the anthocyanin aqueous solutions changed dramatically during storage. The anthocyanin aqueous solutions stored at 4 °C showed the best chemical stability. Interestingly, the antioxidant capacity of the anthocyanin aqueous solutions stored at lower temperatures remained the same; however, the antioxidant capacity of those thermally treated at 120 or 140 °C and stored at 45 or 65 °C significantly decreased.
authors: Food Science and Technology Programme, c/o Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117546, Singapore.
authors: Xiaonan
authors: X
authors: Sui
authors: Department of Food Engineering, Polytech Lille, Villeneuve d'Ascq Cedex 59655, France.
authors: Solène
authors: S
authors: Bary
authors: Food Science and Technology Programme, c/o Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117546, Singapore; National University of Singapore (Suzhou) Research Institute, 377 Linquan Street, Suzhou Industrial Park, Jiangsu 215123, People's Republic of China. Electronic address: chmzwb@nus.edu.sg.
authors: Weibiao
authors: W
authors: Zhou
mesh_terms: D000872:Anthocyanins / Q000737:chemistry*; D000975:Antioxidants / Q000737:chemistry*; D003116:Color; D004355:Drug Stability; D005519:Food Preservation; D006358:Hot Temperature; D012996:Solutions; D014867:Water
chemical_list: D000872:Anthocyanins; D000975:Antioxidants; D012996:Solutions; D014867:Water
keywords: Anthocyanin aqueous solution; Antioxidant capacity; Chemical stability; Color; Mathematical modeling