结果表明，紫甘薯红色素具有与其它几种红色素相似的理化稳定性，其热稳定性与紫米相似，但优于其它色素；
The red pigments of purple sweetpotatoes were showed similar stable to purple rice red pigments, but higher than any other pigments tested when they are heated;
结果表明，紫甘薯红色素具有与其它几种红色素相似的理化稳定性，其热稳定性与紫米相似，但优于其它色素；
The red pigments of purple sweetpotatoes were showed similar stable to purple rice red pigments, but higher than any other pigments tested when they are heated;
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