Influence of Micronized Chitosan on Antioxidative Activities in Grape Juice
Influence of Micronized Chitosan on Antioxidative Activities in Grape Juice
复制标题
微粉化壳聚糖对葡萄汁抗氧化活性的影响
DOI：
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
Hsuan
中科院分区：
文献类型：
--
作者：
Po;Chi Li;Chi;Hsuan
研究了微粉化前（BMC，平均粒径1850±26.3μm）和微粉化后（AMC，平均粒径1.37±0.2μm）壳聚糖在葡萄汁中的抗氧化活性。测定了葡萄汁中的抗氧化活性，包括DPPH自由基、过氧化氢和超氧阴离子自由基，以及BMC或AMC的ABTS自由基。 AMC对DPPH自由基、超氧阴离子自由基和过氧化氢的清除活性比BMC更强。在浓度为1.0 mg/mL时，葡萄汁中的AMC对DPPH自由基、过氧化氢和超氧阴离子自由基的清除活性分别为90.0%、97.3%和88.7%。葡萄汁中AMC的TEAC（Trolox当量抗氧化能力）值（3.94±0.19）大大超过BMC（2.21±0.10）。这项研究的体外结果表明，AMC 可能可以提高葡萄汁中的抗氧化活性。然而，必须进行全面的研究来确定 AMC 在实验动物模型中的体内安全性。
The antioxidant activity of chitosan before micronization (BMC, average particle size of 1850 ± 26.3 μm) and after micronization (AMC, average particle size of 1.37 ± 0.2 μm) in grape juice was studied. Antioxidant activity was determined, including that of DPPH radicals, hydrogen peroxide and superoxide anion radicals, as well as ABTS radicals of BMC or AMC in grape juice. AMC exhibits stronger scavenging activity toward DPPH radicals, superoxide anion radicals and hydrogen peroxide than BMC. At a concentration of 1.0 mg/mL, AMC in grape juice exhibited 90.0%, 97.3% and 88.7% scavenging activities toward DPPH radicals, hydrogen peroxide and superoxide anion radicals, respectively. The TEAC (Trolox Equivalent Antioxidant Capacity) values of AMC (3.94 ± 0.19) greatly exceeded those of BMC (2.21 ± 0.10) in grape juice. The in vitro results in this investigation suggest the possibility that AMC can increase the antioxidant activity in grape juice. However, comprehensive studies must be performed to ascertain the in vivo safety of AMC in experimental animal models.
DOI：
10.1016/s0021-9258(19)77928-9
发表时间：
1988-02
期刊：
The Journal of biological chemistry
影响因子：
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作者：
P. Hyslop;Daniel;Hinshawz;Wayne A. Halsey;Ingrid;Schraufstatter;Richard D. Sauerhebery;Roger G. Spraggj;Janis H. Jackson;C G Cochrane
通讯作者：
P. Hyslop;Daniel;Hinshawz;Wayne A. Halsey;Ingrid;Schraufstatter;Richard D. Sauerhebery;Roger G. Spraggj;Janis H. Jackson;C G Cochrane