摘要:The effects of temperature, light, oxidant, soluble sugar, food additive (i.e. citric acid, benzoic acid, and ascorbic acid) and metal ions of K+, Ca2+, Cu2+, Al3+, Mn2+, Fe3+, Sn2+, Mg2+ on the stability of anthocyanin extracted from the kernels of novel inbred line super dark maize (SDM) with the strategy of HCl-carbinol were systematically analyzed. The results showed that the extracted anthocyanin was steady in acid conditions (pH≤ 3) and stable to heat and light; it had good anti-oxidation and maintained sensitive to reducing agents and insensitive to soluble sugar. Citric acid had positive effect on the stability of anthocyanin while benzoic acid and ascorbic acid negative; metal ions (1 mMol·L-1) of K+、Ca2+、Cu2+、Al3+、Mn2+ exhibited no obvious effect on the anthocyanin while ions of Fe3+、Sn2+、Mg2+ obvious.
关键词:anthocyanin; physicochemical characteristics; super dark maize