Extraction of betalaine from red pitaya peel using deep eutectic solvent and its research in films

IF 3.5 2区农林科学 Q2 BIOTECHNOLOGY & APPLIED MICROBIOLOGY Food and Bioproducts Processing Pub Date : 2024-11-05 DOI:10.1016/j.fbp.2024.11.005

Yanhong Liu , Xiwang Mu , Hui Wang , Mingyue Wang , Lingling Zhang , Guangrao Chen , Shuo Wang

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Abstract

Perishable food poses significant food safety hazards and threatens public health. Consequently, pH indicator films have garnered considerable interest due to their potential for early detection of food spoilage. This research used red-fleshed pitaya peel powder as raw material, and betalaines were extracted using DES composed of choline chloride and citric acid as hydrogen bond donors and acceptors, respectively. The extraction conditions were optimized by response surface experiment, and the content of betalaine (BT) extracted in the verification experiment was 4.39 mg/g. The film was prepared using the solvent casting technique. The above DES/BT solution (DES/BT) was added into sodium alginate (SA) and sodium carboxymethyl cellulose (CMC) pH indicator films, and the effects of DES/BT on the physicochemical, optical and surface properties of the films were studied. The results showed that the film with 0.7 mL (1.4 %, v/v) DES/BT had the best tensile strength(23.14 MPa), water solubility(16.02 %), and water vapor permeability (7.64×10⁻⁵g*m*m⁻²*Pa*h⁻¹). The addition of DES and DES/BT made the film surface texture uniform and wrinkle-free and the UV transmittance decreased from 73.27 % to 61.83 %. Experiments on the film in different pH solutions showed that the film had a colorimetric response. Overall, the incorporation of DES/BT into the films presents significant potential for monitoring food freshness.

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利用深共晶溶剂萃取红塔果皮中的甜菜碱及其在薄膜中的研究

易腐食品会对食品安全造成严重危害，并威胁公众健康。因此，pH 指示膜因其在早期检测食品变质方面的潜力而备受关注。本研究以红皮番木瓜果皮粉为原料，分别以氯化胆碱和柠檬酸为氢键供体和受体的 DES 提取甜菜碱。通过响应面实验对提取条件进行了优化，验证实验中提取的甜菜碱（BT）含量为 4.39 mg/g。薄膜采用溶剂浇铸技术制备。将上述 DES/BT 溶液（DES/BT）添加到海藻酸钠（SA）和羧甲基纤维素钠（CMC）pH 指示剂薄膜中，研究 DES/BT 对薄膜理化性质、光学性质和表面性质的影响。结果表明，添加 0.7 mL（1.4 %，v/v）DES/BT 的薄膜具有最佳的拉伸强度（23.14 MPa）、水溶性（16.02 %）和水蒸气渗透性（7.64×10-5g*m*m-2*Pa*h-1）。添加 DES 和 DES/BT 后，薄膜表面纹理均匀且无褶皱，紫外线透过率从 73.27 % 下降到 61.83 %。在不同 pH 值溶液中对薄膜进行的实验表明，薄膜具有比色反应。总之，在薄膜中加入 DES/BT 有助于监测食品的新鲜度。

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来源期刊

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.