百里香精油成分对壳聚糖膜结构特性的影响及其迁移机制

张冰心; 隋静; 裴令栋; 宿玲绮; 彭勇

doi:10.13386/j.issn1002-0306.2022080217

百里香精油成分对壳聚糖膜结构特性的影响及其迁移机制

doi: 10.13386/j.issn1002-0306.2022080217

张冰心^1,,
隋静²,
裴令栋³,
宿玲绮¹,
彭勇^1,*, ,

1.
山东农业大学食品科学与工程学院，山东泰安 271018
2.
莱芜职业技术学院，山东济南 250002
3.
辰欣药业股份有限公司，山东济宁 272000

基金项目: 山东省自然科学基金面上项目（ZR2021MC031，ZR2022MC102）。

详细信息

作者简介:
张冰心（1998−），女，硕士研究生，研究方向：果蔬采后贮藏与保鲜，E-mail：2990646505@qq.com

通讯作者:
彭勇（1980−），男，博士，副教授，研究方向：果蔬采后贮藏与保鲜，E-mail：pengyongxyz@sina.com

中图分类号: TS206.4
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- 文章访问数: 38
- HTML全文浏览量: 43
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- 被引次数: 0
出版历程
- 收稿日期: 2022-08-23
- 刊出日期: 2023-05-15

Effect of Thyme Essential Oil Components on the Structure Properties of Chitosan Films and Its Migration Mechanism

1.
College of Food Science and Engineering, Shandong Agricultural University, Taian 271018, China
2.
Laiwu Vocational and Technical College, Jinan 250002, China
3.
Cisen Pharmaceutical Co., Ltd., Jining 272000, China

摘要

摘要: 为探究百里香精油成分百里香酚、芳樟醇和石竹烯从壳聚糖膜中的迁移机制，对其构建的壳聚糖复合膜物理性能、抗菌性能、迁移特性和化学结构进行研究。结果表明，百里香精油、百里香酚和石竹烯均提高了壳聚糖膜的阻水性，其中石竹烯的水蒸气透过率比对照下降了15.04%，并且，百里香酚和石竹烯也降低了复合膜的膨胀度（下降24.31%和11.64%）和断裂伸长率（下降13.46%和27.88%），但显著（P<0.05）提高了壳聚糖膜的抗菌性，以百里香精油复合膜抗菌效果最好。所有精油成分均增加了壳聚糖膜的吸热峰温度，提高了复合膜的热稳定性。此外，复合膜中精油成分在蒸馏水中的迁移速率快于95%乙醇，百里香酚的迁移速率最快，其次是精油和石竹烯，而芳樟醇迁移最少。傅立叶变换红外光谱显示，壳聚糖与百里香精油、百里香酚、石竹烯之间存在强烈的氢键相互作用。研究为深入探究壳聚糖精油复合膜的性能和结构差异提供了参考。
- 壳聚糖复合膜 /
- 百里香精油 /
- 百里香酚 /
- 成分迁移 /
- 化学结构 /
- 物理性能
Abstract: In order to investigate the migration mechanism of thyme essential oil components thymol, linalool and caryophyllene from chitosan films, the physical, antimicrobial, migration characteristics and chemical structure of chitosan composite films were evaluated. The results showed that thyme essential oil, thymol and caryophyllene improved the water resistance ability of chitosan film, among which the water vapor permeability of caryophyllene decreased by 15.04% compared with the control. Moreover, thymol and caryophyllene also decreased the swelling degree (decreased by 24.31% and 11.64%) and elongation at break (decreased by 13.46% and 27.88%) of composite films. However, the antibacterial properties of chitosan films were significantly (P<0.05) improved with the addition of active components, particularly with thyme essential oil. All essential oil components increased the endothermic peak temperature and improved the thermal stability of chitosan films. In comparison, the migration rate of essential oil components from composite film was faster in distilled water than that in 95% ethanol. The migration rate of thymol was the fastest, followed by essential oil and caryophyllene, and linalool had the least migration. FTIR showed strong hydrogen bond interaction between chitosan and thyme essential oil, thymol and caryophyllene. The study could provide a reference for further exploring the performance and structural differences of chitosan essential oil composite film.
- chitosan composite film /
- thyme essential oil /
- thymol /
- component migration /
- chemical structure /
- physical property

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图 1 壳聚糖-百里香精油成分复合膜溶液的表观粘度

Figure 1. Apparent viscosity of chitosan-thyme oil composite films solution

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图 2 壳聚糖-百里香精油成分复合膜的力学性能

注：不同小写字母表示0.05水平上有显著性差异。

Figure 2. Mechanical properties of chitosan-thyme oil composite films

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图 3 百里香精油成分-壳聚糖复合膜的热学性能

Figure 3. Thermal properties of chitosan-thyme oil composite films

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图 4 复合膜对大肠杆菌（A）和金黄色葡萄球菌（B）的抗菌活性

Figure 4. Antibacterial activity of films against Escherichia coli (A) and Staphylococcus aureus (B)

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图 5 百里香精油及其成分从壳聚糖复合膜向水（A）和95%乙醇（B）中迁移情况

Figure 5. Migration of thyme essential oil and its components from chitosan films to water (A) and 95% ethanol (B)

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图 6 壳聚糖-百里香精油成分复合膜的红外光谱图像

Figure 6. FTIR image of chitosan-thyme oil composite films

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表 1 壳聚糖-百里香精油成分复合膜溶液的粒径、多分散指数（PDI）和Zeta电位

Table 1. Particle size, polydispersity index and zeta potential of chitosan-thyme oil composite films solution

样品	粒径（nm）	多分散指数	Zeta电位（mV）
CH	3229.8±321.5^d	0.47±0.02^a	44.02±6.55^c
CH-T	4834.3±284.5^b	0.35±0.02^c	53.08±4.30^a
CH-TP	4072±366.5^c	0.44±0.06^ab	51.77±3.74^a
CH-TL	3469.6±478.0^d	0.39±0.04^b	50.30±2.64^b
CH-TC	11265.5±656.8^a	0.40±0.07^b	52.87±2.91^a
注：同一列中的不同小写字母表示0.05水平上有显著性差异；表2同。

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表 2 壳聚糖精油复合膜的物理性能

Table 2. Physical properties of chitosan-essential oil composite films

膜处理	厚度（mm）	L^*	a^*	b^*	含水量（%）	水蒸气透过率（×10⁻¹⁰ g/（m·s·Pa））	膨胀度（%）	溶解度（%）
CH	0.067±0.008^c	90.43±0.54^a	−0.81±0.07^b	7.16±0.34^b	22.49±1.36^a	1.33±0.03^ab	45.01±8.99^a	17.18±1.11^b
CH-T	0.074±0.009^b	87.88±0.61^b	0.59±0.25^a	7.16±0.38^b	19.24±0.51^a	1.24±0.07^b	35.85±3.52^c	23.02±1.19^a
CH-TP	0.067±0.004^c	90.55±0.85^a	−0.72±0.04^b	7.00±0.20^b	18.20±1.38^a	1.20±0.12^b	34.07±5.61^c	24.68±6.50^a
CH-TL	0.068±0.005^c	90.53±0.21^a	−0.77±0.09^b	7.16±0.26^b	21.83±0.40^a	1.35±0.07^a	46.95±11.87^a	16.51±0.74^b
CH-TC	0.088±0.006^a	90.09±0.10^a	−0.96±0.03^c	8.05±0.15^a	13.44±0.70^b	1.13±0.17^c	39.77±3.38^b	14.99±0.19^c

下载: 导出CSV

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