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中国塑料 ›› 2025, Vol. 39 ›› Issue (9): 49-57.DOI: 10.19491/j.issn.1001-9278.2025.09.008
收稿日期:
2024-10-21
出版日期:
2025-09-26
发布日期:
2025-09-22
通讯作者:
邓忠惠(1980-),男,高级实验师,研究方向为智能检测与智能控制,7821968@qq.com作者简介:
谢微(1984-),女,高级实验师,研究方向为食品分析与检测,249201676@qq.com
基金资助:
XIE Wei1(), DENG Zhonghui2(
), YAN Yu1
Received:
2024-10-21
Online:
2025-09-26
Published:
2025-09-22
Contact:
DENG Zhonghui
E-mail:249201676@qq.com;7821968@qq.com
摘要:
采用生或熟的紫薯粉为基材,添加海藻酸钠、二氧化钛和柠檬酸等组分,通过层层自组装技术制备8种不同的双层膜,并进行X射线衍射、扫描电子显微镜、光学性能、力学性能、抗氧化性能、氨气响应、缓释效果和其他性能的评估。结果表明,STNPR膜具有最优的综合性能,其具体参数为不透明度7.18 mm-1,拉伸强度2.93 MPa,断裂伸长率39.2 %,含水率26.78 %,水蒸气透过系数为0.000 3 g/(mm·d),水溶性50.97 %,溶胀率362.99 %,DPPH自由基清除率为56.79 %;将STNPR膜应用于猪肉糜新鲜度监测,在监测过程中,STNPR膜从初始的茄紫红色变为茄紫黑色,最终变为蓝黑色;STNPR膜的颜色变化能够直观反映猪肉糜的质量状态,为消费者提供一个简便可靠的判断依据。
中图分类号:
谢微, 邓忠惠, 颜瑜. 生熟紫薯双层膜的制备及其在猪肉糜新鲜度监测中的应用[J]. 中国塑料, 2025, 39(9): 49-57.
XIE Wei, DENG Zhonghui, YAN Yu. Preparation and application of bilayer films from raw or cooked purple sweet potato for monitoring minced pork freshness[J]. China Plastics, 2025, 39(9): 49-57.
双层膜 | 颜色参数 | 膜厚 | |||
---|---|---|---|---|---|
L* | a* | b* | ∆E | ||
SPR | 30.12 | 20.02 | 3.65 | 71.76 | 0.24 |
SNPR | 33.7 | 29.16 | 7.25 | 70.97 | 0.26 |
STPR | 32.4 | 21.70 | 4.81 | 69.91 | 0.23 |
STNPR | 32.9 | 25.75 | 5.87 | 70.55 | 0.27 |
shuPR | 56.52 | 14.32 | 24.47 | 45.06 | 0.22 |
shuNPR | 71.19 | 24.77 | 4.21 | 35.60 | 0.35 |
shuTPR | 44.06 | 31.94 | 11.82 | 62.62 | 0.27 |
shuTNPR | 60.53 | 12.82 | 24.43 | 40.82 | 0.31 |
双层膜 | 颜色参数 | 膜厚 | |||
---|---|---|---|---|---|
L* | a* | b* | ∆E | ||
SPR | 30.12 | 20.02 | 3.65 | 71.76 | 0.24 |
SNPR | 33.7 | 29.16 | 7.25 | 70.97 | 0.26 |
STPR | 32.4 | 21.70 | 4.81 | 69.91 | 0.23 |
STNPR | 32.9 | 25.75 | 5.87 | 70.55 | 0.27 |
shuPR | 56.52 | 14.32 | 24.47 | 45.06 | 0.22 |
shuNPR | 71.19 | 24.77 | 4.21 | 35.60 | 0.35 |
shuTPR | 44.06 | 31.94 | 11.82 | 62.62 | 0.27 |
shuTNPR | 60.53 | 12.82 | 24.43 | 40.82 | 0.31 |
样品 | 0 min | 5 min | 10 min | 15 min | 20 min | 25 min | 30 min |
---|---|---|---|---|---|---|---|
SPR膜 | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
SNPR膜 | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
STPR膜 | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
STNPR膜 | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
shuPR膜 | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
shuNPR膜 | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
shuTPR膜 | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
shuTNPR膜 | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
样品 | 0 min | 5 min | 10 min | 15 min | 20 min | 25 min | 30 min |
---|---|---|---|---|---|---|---|
SPR膜 | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
SNPR膜 | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
STPR膜 | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
STNPR膜 | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
shuPR膜 | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
shuNPR膜 | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
shuTPR膜 | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
shuTNPR膜 | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
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