含花青素双层指示薄膜的贮藏稳定性
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王文艳,女,河南农业职业学院副教授,硕士

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河南农业职业学院科技创新人才项目(编号:HNACSRHR-2021-10);安徽省科技重大专项项目(编号:202203a06020006)


Storage stability of bilayer indicator films containing anthocyanin
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    摘要:

    目的:探索花青素指示薄膜的最佳贮藏条件。方法:以含花青素的双层指示薄膜为研究对象,测定其在不同贮藏时间(0,7,14,21,28,35 d)和温度(25,4,18 ℃)下的机械性能(抗拉强度和断裂伸长率)、厚度、颜色和抗氧化性能(总酚含量、DPPH自由基清除能力和ABTS自由基清除能力)。结果:指示薄膜的厚度总体稳定保持在0.15 mm左右,18 ℃条件下贮藏的薄膜颜色变化最小。抗氧化活性试验表明,25 ℃贮藏的指示薄膜比4 ℃和18 ℃ 贮藏的抗氧化活性更高,尤其是清除DPPH自由基能力。结论:含花青素双层指示薄膜的最佳贮藏温度为25 ℃,最佳贮藏时间为28 d。

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    Objective: This study aimed to investigate the best storage conditions for anthocyanin indicator films. Methods: The double-layer indicator films containing anthocyanins were investigated. The mechanical properties (tensile strength and elongation at break), thickness, color and antioxidant properties (DPPH free radical scavenging ability, total phenol content and ABTS free radical scavenging ability) of double-layer indicator films containing anthocyanins were determined at different storage time (0, 7, 14, 21, 28 and 35 d) and temperature (25, 4 and 18 ℃). Results: The results showed that the thickness of the indicator films was generally maintained at about 0.15 mm, and the color change of the film stored at 18 ℃ was the smallest. The antioxidant activities of the films stored at 25 ℃ were higher than those stored at 4 and 18 ℃, especially the DPPH free radical scavenging ability was the highest. Conclusion: The optimal storage temperature of the film is 25 ℃, and the optimal storage time is 28 d.

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王文艳,周希,魏贞,等.含花青素双层指示薄膜的贮藏稳定性[J].食品与机械,2022,(11):125-129,167.
WANG Wen-yan, ZHOU Xi, WEI Zhen, et al. Storage stability of bilayer indicator films containing anthocyanin[J]. Food & Machinery,2022,(11):125-129,167.

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  • 在线发布日期: 2022-12-15
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