Fabrication and characterization of novel biodegradable films based on tomato seed mucilage and gelatin plasticized with polyol mixtures

IF 3.5 2区 农林科学 Q2 BIOTECHNOLOGY & APPLIED MICROBIOLOGY Food and Bioproducts Processing Pub Date : 2024-09-21 DOI:10.1016/j.fbp.2024.09.015
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Abstract

This research evaluates the potential of tomato seed mucilage (TSM) –gelatin (Ge) in producing edible films. Edible films were made using various ratios of TSM to Ge (1:0, 0.33:0.66, 0.66:0.33, and 0:1). Moreover, the effects of including three types of plasticizers, namely, glycerol (Gly), sorbitol (Sor), and polyethylene glycol (PEG) were investigated. The findings indicated that adding Ge did not affect the thickness of the films (p>0.05). However, it significantly increased the tensile strength (TS) and Young's modulus while reducing the elongation at break (EB) (p˂0.05). A higher TSM ratio significantly increased total color difference (ΔE) and yellowness index while decreasing film lightness and whiteness index (WI) (p˂0.05). The contact angle significantly decreased with the TSM ratio increases and Ge decreases (p˂0.05). Moreover, this led to higher opacity, solubility, moisture content, oxygen permeability, water vapor permeability (WVP), swelling, and moisture absorption (p˂0.05). Adding a plasticizer had no effect on the films' opacity, contact angle, and thickness. The Gly-containing film featured the highest EB, solubility, moisture content, swelling, WVP, oxygen permeability, and moisture absorption. The Sor-containing film had the highest TS. TSM concentration was directly correlated with increased film heterogeneity and surface roughness. X-ray diffraction peaks became sharper by increasing TSM concentration and including PEG, while Gly inclusion produced ordered broad peaks.
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基于番茄籽粘液和明胶与多元醇混合物塑化的新型生物可降解薄膜的制作和特性分析
本研究评估了番茄种子粘液(TSM)-明胶(Ge)在生产可食用薄膜方面的潜力。使用不同比例的 TSM 和 Ge(1:0、0.33:0.66、0.66:0.33 和 0:1)制作了可食用薄膜。此外,还研究了加入甘油(Gly)、山梨醇(Sor)和聚乙二醇(PEG)这三种增塑剂的效果。结果表明,添加 Ge 不会影响薄膜的厚度(p>0.05)。但是,它能明显提高拉伸强度(TS)和杨氏模量,同时降低断裂伸长率(EB)(p˂0.05)。较高的 TSM 比率会明显增加总色差 (ΔE) 和黄度指数,同时降低薄膜亮度和白度指数 (WI)(p˂0.05)。接触角随着 TSM 比率的增加和 Ge 的减少而明显减小(p˂0.05)。此外,这还会导致不透明度、溶解性、含水量、氧气渗透性、水蒸气渗透性(WVP)、膨胀性和吸湿性增加(p˂0.05)。添加增塑剂对薄膜的不透明度、接触角和厚度没有影响。含 Gly 的薄膜具有最高的 EB、溶解性、含水量、膨胀性、WVP、透氧性和吸湿性。含 Sor 的薄膜具有最高的 TS。TSM 浓度与薄膜异质性和表面粗糙度的增加直接相关。随着 TSM 浓度的增加和 PEG 的加入,X 射线衍射峰变得更尖锐,而 Gly 的加入则产生了有序的宽峰。
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来源期刊
Food and Bioproducts Processing
Food and Bioproducts Processing 工程技术-工程:化工
CiteScore
9.70
自引率
4.30%
发文量
115
审稿时长
24 days
期刊介绍: Official Journal of the European Federation of Chemical Engineering: Part C FBP aims to be the principal international journal for publication of high quality, original papers in the branches of engineering and science dedicated to the safe processing of biological products. It is the only journal to exploit the synergy between biotechnology, bioprocessing and food engineering. Papers showing how research results can be used in engineering design, and accounts of experimental or theoretical research work bringing new perspectives to established principles, highlighting unsolved problems or indicating directions for future research, are particularly welcome. Contributions that deal with new developments in equipment or processes and that can be given quantitative expression are encouraged. The journal is especially interested in papers that extend the boundaries of food and bioproducts processing. The journal has a strong emphasis on the interface between engineering and food or bioproducts. Papers that are not likely to be published are those: • Primarily concerned with food formulation • That use experimental design techniques to obtain response surfaces but gain little insight from them • That are empirical and ignore established mechanistic models, e.g., empirical drying curves • That are primarily concerned about sensory evaluation and colour • Concern the extraction, encapsulation and/or antioxidant activity of a specific biological material without providing insight that could be applied to a similar but different material, • Containing only chemical analyses of biological materials.
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