Unverified72% confidenceTradeoffTime unknown
叶黄素来源纯度权衡:万寿菊提取的游离型叶黄素(free lutein)吸收快,酯化型(lutein ester)需酶解转化但更稳定成本低;标签标注'游离型'通常剂量利用率更高但价格更贵
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72%
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Long-term
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Unverified游离型叶黄素(free lutein)吸收率高于酯化型(lutein ester),但酯化型稳定性好、单位剂量成本低;看配料表若标注‘万寿菊提取物’多为酯化型,需注意标称含量是否为纯叶黄素还是酯化物总量92% similarUnverified叶黄素形态影响吸收:游离型(Free Lutein)比酯化型(Lutein Ester)生物利用率高约17%,但酯化型标注剂量往往包含酯化部分,需换算实际叶黄素含量,看配料表是否标注'游离叶黄素'83% similarUnverified游离型(free lutein)叶黄素分子量小、无需胃肠道酯酶水解可直接吸收,生物利用度高于酯化型(lutein ester);但酯化型标注含量为酯化物总重,实际叶黄素净含量约为标注的50%,比较时需换算81% similarUnverified游离型(free lutein)叶黄素分子量小、无需胃酸酯酶分解可直接吸收,生物利用度比酯化型高约17-23%;但标签标注含量时需注意:酯化型常按‘酯’的总重标注,实际游离叶黄素当量约为标注值的50-55%79% similarUnverified游离型(free lutein)叶黄素比酯化型(lutein ester)生物利用度更高,酯化型需在肠道酶解后吸收,胃肠功能弱或空腹服用者优先选游离型,成分表会标注'lutein'或'lutein esters'加以区分78% similar
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