Preparation and characterization of chitosan-rice starch films incorporating Amomum verum Blackw essential oil for grape preservation

IF 4.8 1区 农林科学 Q1 FOOD SCIENCE & TECHNOLOGY
Patcharee Pripdeevech , Teerapong Sripahco , Nattakan Soykeabkaew , Wirongrong Tongdeesoontorn
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Abstract

The preservation of perishable food items presents a significant challenge in the food industry. In this study, we investigated the development and characterization of chitosan-starch films incorporated with A. verum essential oil for application in grape preservation. The films were prepared using a solvent casting method, and their physical and antibacterial properties were thoroughly evaluated. The films demonstrated tensile strength values ranging from 21.28 MPa to 27.64 MPa and elongation at break between 71.24% and 84.23%. The water vapor permeability values for chitosan-starch films were from 2.04 kg/Pa·s·m to 2.51 kg/Pa·s·m. In addition, the antibacterial activity of the films was assessed against Escherichia coli and Staphylococcus aureus. The results revealed notable inhibitory effects, with inhibition zones ranging from 14.41 mm to 21.00 mm. The films' efficacy in grape preservation was evaluated through storage experiments at room temperature for 9 days, comparing them with polypropylene film and unwrapped samples. The chitosan-starch films, particularly those containing 1.0% A. verum essential oil, exhibited superior performance in reducing weight loss and maintaining grape firmness compared to common packaging materials. Moreover, grapes covered with these current active bio-based films demonstrated higher antioxidant activity, indicating potential benefits for extending shelf life and preserving fruit quality. Chitosan-starch films incorporated with A. verum essential oil hold promise as effective and environmentally friendly packaging materials for grape preservation.

壳聚糖-大米淀粉薄膜的制备和特性分析,其中含有用于葡萄保鲜的黑毛茛精油
如何保存易腐食品是食品工业面临的一项重大挑战。在本研究中,我们研究了壳聚糖-淀粉薄膜的开发和特性,该薄膜掺入了香叶精油,可用于葡萄保鲜。薄膜采用溶剂浇铸法制备,并对其物理和抗菌特性进行了全面评估。薄膜的拉伸强度值在 21.28 兆帕到 27.64 兆帕之间,断裂伸长率在 71.24% 到 84.23% 之间。壳聚糖-淀粉薄膜的水蒸气渗透值为 2.04 kg/Pa-s-m 至 2.51 kg/Pa-s-m。此外,还评估了薄膜对大肠杆菌和金黄色葡萄球菌的抗菌活性。结果显示了显著的抑菌效果,抑菌区范围从 14.41 毫米到 21.00 毫米不等。通过在室温下贮藏 9 天的实验,对薄膜在葡萄保鲜方面的功效进行了评估,并与聚丙烯薄膜和无包装样品进行了比较。与普通包装材料相比,壳聚糖-淀粉薄膜,尤其是含有 1.0% 香叶精油的薄膜,在减少重量损失和保持葡萄硬度方面表现出色。此外,覆盖了这些活性生物基薄膜的葡萄显示出更高的抗氧化活性,这表明它们在延长货架期和保持水果品质方面具有潜在的优势。添加了香叶精油的壳聚糖-淀粉薄膜有望成为有效、环保的葡萄保鲜包装材料。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Food Bioscience
Food Bioscience Biochemistry, Genetics and Molecular Biology-Biochemistry
CiteScore
6.40
自引率
5.80%
发文量
671
审稿时长
27 days
期刊介绍: Food Bioscience is a peer-reviewed journal that aims to provide a forum for recent developments in the field of bio-related food research. The journal focuses on both fundamental and applied research worldwide, with special attention to ethnic and cultural aspects of food bioresearch.
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