LWT-FOOD SCIENCE AND TECHNOLOGY
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2023
·
IF 6
Zhenfeng Xie,Yi Wu,Xin Lu
In this study, we encapsulated epigallocatechin gallate (EGCG) in emulsified oil droplets of protein-stabilized emulsions for the first time, with the participation of peppermint essential oil (PEO). Gum arabic (GA) and sodium caseinate (SC) were sufficiently crosslinked to construct the oil-water interface of the emulsion, improving the stability of EGCG in the emulsified oil droplets. When SC and 4 g/kg GA were mixed for 12 h before emulsification, the protein adsorption at the oil-water interface was significantly enhanced. Compared with the SC-stabilized emulsion, the retention of EGCG in the emulsion stabilized by mixing SC and 4 g/kg GA for 12 h increased about 2 and 33 times, respectively, after thermal treatment (30 min at 90 °C) and storage 10 weeks at 4 °C. Moreover, the emulsion stabilized by SC and 4 g/kg GA was resistant to the ionic strength of 0–0.6 mol/L and had predominantly elastic characteristics in the rheological properties. This indicates that the stability of active ingredients in emulsified oil droplets can be improved by regulating the rheological properties of the oil-in-water emulsion. The study is of great value for the efficient encapsulation and stability improvement of hydrophilic active ingredients in emulsified oil droplets based on emulsion systems.
研究领域:
食品科学
·
营养学
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DOI
高影响因子
JOURNAL OF SEPARATION SCIENCE
·
2025
·Vol. 48
·期 11
·e70296
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IF 2.8
Mengtao Jin,Yu Wang,Lingqi Shen,Xuerong Yang,Peiyu Yan,Zuguang Li,Guohua Zhu
This paper aims to achieve efficient selective separation and green purification of menthol using green deep eutectic solvents (DESs). Taking peppermint essential oil as the research object, a green process based on in-situ formation of DESs is proposed to achieve efficient purification of menthol. Taking menthol in peppermint essential oil as a hydrogen bond donor (HBD), eight quaternary ammonium salts and quaternary phosphonium salts were screened as hydrogen bond acceptors (HBA), and tetrabutylammonium chloride (TBAC) was determined as the optimal HBA component. The hydrogen bonding between menthol hydroxyl and TBAC anion was confirmed by FT-IR and 1 H NMR characterization. After optimizing the conditions such as HBA type, n-hexane dosage, molar ratio, and vortex number, under the optimal conditions, the extraction recovery of peppermint essential oil reached 88.62% ± 0.82%, and the menthol purity was 91.16% ± 0.93%. Compared with the original peppermint essential oil, the menthol purity was significantly improved. The recycling experiment showed that TBAC has good reusability, a simple and green purification process, and good application prospects.
研究领域:
绿色化学
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分离科学
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天然产物提取
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精油加工
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DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2023
·
IF 8.2
Xing Wu,Jingya Zhou,Zeng Liu,Jia Liu,Shu He,Wei Shao
The research and development trend of food packaging is changing from synthetic polymers to eco-friendly materials such as polysaccharides and other hydrocolloids , aiming to solve the problem of pollution from plastic wastes. In this work, a biodegradable food packaging noted KC/PT film was constructed using konjac glucomannan (KGM)/carrageenan (CAR) composite as the matrix and peppermint essential oil (PO)/thymol (THY) with synergistic effect as the reinforcements. The KC/PT film showed great mechanical properties, UV-blocking activity, increased water contact angle and reduced water vapor permeability. Due to the synergistic effect between PO and THY, the KC/PT film showed excellent antioxidant performance and antibacterial behavior against Escherichia coli ATCC 25922, Listeria monocytogenes ATCC 19115 and Staphylococcus aureus ATCC 6538. The antibacterial mechanism was further illustrated. The prepared KC/PT film, as a unique packaging film, not only successfully extended the shelf life of strawberry to 16 days at 4 °C, but also well expressed its environmental friendliness that it could nearly degrade after 47 days in natural soil conditions. Most importantly, the film exhibited good stability in terms of mechanical properties, antioxidant activity and antibacterial performances after 4 months storage. Therefore, the film the KC/PT film has great potentials in the field of food packaging area.
研究领域:
食品科学
·
材料科学
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DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2024
·
IF 4.9
Zhenfeng Xie,Yi Wu
Emulsion-based carriers have been widely studied for the co-encapsulation of active ingredients with different partition coefficient (Log P). However, it is challenging to encapsulate active ingredients with low Log P values in emulsified oil droplets. In this study, (-)-epigallocatechin gallate (EGCG, 160 µg/g*emulsion, Log P 2.38) and resveratrol (Res, 320 µg/g*emulsion, Log P 2.57), as models with low Log P, were co-encapsulated in emulsified oil droplets for the first time by peppermint essential oil (PEO) mediation. During storage process, EGCG and Res consistently remain co-located inside the emulsified oil droplets. However, both EGCG and Res migrated towards the inner layer of the interface of emulsified oil droplets along with PEO. Res exhibited better stability compared to EGCG, while the degradation of EGCG occurred within the emulsified oil droplets. Furthermore, when co-localized with Res, the degradation rate of EGCG slowed down. PEO did not degrade during storage, and over 98 % of PEO was encapsulated within the emulsified oil droplets. This is the crucial reason for maintaining the stability of SC-stabilized emulsion and achieving high encapsulation efficiency of active ingredients. This provides a green and simple strategy for co-encapsulation of active ingredients with Log P lower than 3.0 within emulsified oil droplets.
研究领域:
食品科学
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生物化学
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DOI
高影响因子
Toxins
·
2025
·Vol. 17
·期 12
·
IF 4
Hui Zhang,Yuying Su,Xinnan Wang,Ying Ren,Jinfeng Li,Jianping Han
Polygalae Radix, a traditional Chinese medicine for insomnia and memory disorders, is highly susceptible to fungal contamination and mycotoxin production (especially byAspergillus flavus) during storage, compromising its safety and efficacy. Therefore, in this study, high-throughput sequencing was employed to evaluate the dynamic changes in fungal communities during the storage of Polygalae Radix and to analyze common mycotoxin-producing genera. Furthermore, the inhibitory effects of peppermint essential oil (PEO) onA. flavuswere assessed through fumigation treatments, combined with colony counting and quantification of aflatoxins. Results showed the following: (1) Storage for 1–3 months significantly altered the fungal structure, promoting saprophytic and pathogenic fungi (e.g.,Wallemia,Paraphoma,Didymella,Cladosporium…) and increasing the relative abundance of mycotoxin producers likePenicillium,Aspergillus, andFusarium(notably,Penicilliumincreased from 0.28–2.33% to 5.39–80.43%). Additionally,A. flavus, capable of producing aflatoxins, was detected in samples stored for two months (RM2). (2) Antifungal tests demonstrated that PEO significantly inhibited the common fungi in Polygalae Radix. At 10 μL/g, it suppressed fungal growth and significantly reduced aflatoxin B1(AFB1) and total aflatoxins (AFT, including AFB1, AFB2, AFG1, and AFG2) levels (p< 0.05). At 10 μL/g, AFB1and AFT were reduced to undetectable levels. PEO can serve as a green and effective protective strategy to inhibitA. flavusduring the storage of Polygalae Radix and control aflatoxin contamination.
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PubMed
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2025
·
IF 6.2
Tengfei Lu,Ziteng Wang,Xiangyu Zheng,Sheng Wang,Xin Liang,Yuqian Xia,Ying Ma,Tong Wang
Deep eutectic solvents (DESs) have shown great potential in the sustainable fabrication of nanoemulsions. However, co-assembled nanoemulsion systems that integrate both hydrophilic DES (HL-DES) and hydrophobic DES (HB-DES) (referred to as HL/HB-DES-NE) have yet to be reported. In this study, we designed and fabricated a novel HL/HB-DES-NE system and utilized it for encapsulating peppermint essential oil (PMEO). The formulation was systematically optimized, and the resulting HL/HB-DES-NE was characterized for particle size, particle size distribution, encapsulation efficiency, stability, anti-inflammatory activity and antibacterial activity. Firstly, a hydrophobic DES was prepared through eutectic mixing of thymol and polyglyceryl-4-caprate, while a hydrophilic DES was synthesized using betaine and glycerol. The optimal formulation is PMEO/thymol:polyglyceryl-4-caprate (2:1, mol/mol)/betaine:glycerol (1:3, mol/mol)/H₂O [0.275/0.25/0.94/3.76, v/v/v/v] which achieved a particle size of approximately 55.80 nm. The nanoemulsions exhibited good anti-inflammatory and antibacterial activities and maintained remarkable stability, showing no significant changes in particle size, distribution, anti-inflammatory activity and antibacterial activity after 14 days of storage at 4 °C, 20 °C, 37 °C, and 55 °C. The proposed co-assembly strategy, which leverages the unique properties of both hydrophilic and hydrophobic DESs, offers a green alternative to traditional surfactants and provides a flexible and scalable platform for the design of high-performance nanoemulsions. The findings not only provide important theoretical and practical foundations for the development of essential oil-based antimicrobial and anti-inflammatory agents in cosmetics, pharmaceuticals, and industrial applications, but also propose a novel strategy for the development of next-generation DES-based formulations across diverse industries.
研究领域:
药剂学
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纳米技术
·
天然产物化学
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药物递送系统
·
抗菌材料
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DOI
高影响因子
FOOD HYDROCOLLOIDS
·
2023
·
IF 10.7
Xiaolu Tian,Di Wang,Yihan Li,Zhe Xu,Xueyan Ren,Qingjun Kong
In this study, we report for and first use of soy protein isolate (SPI), chitosan quaternary ammonium salt (HACC), and peppermint essential oil (PMO) to prepare emulsions. Under different SPI/HACC ratios, emulsions with an oil-phase ratio of 60% were produced using the high-speed shearing machine (i.e., 1:0, 1:1, 2:1, and 5:1). The outcome of rheological experiment demonstrated that the addition of HACC boosted the viscosity and improved gel network structure of emulsions. The stability and microstructure of the emulsion also improved as the content of HACC was increased. Also, the evaporation rate of essential oil from the emulsions was examined. The release duration of PMO was also significantly extended by the emulsions, and its capacity to inhibit the growth of three plant pathogenic fungi was enhanced. Therefore, this study suggested that HACC can greatly improved the emulsification stability of SPI as well as essential oil emulsion stabilized by SPI/HACC composite with a ratio of 1:1 had the best slow release effect. The PMO emulsions that were created had great promise for embedding volatile, water-insoluble, and micromolecular chemicals.
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高影响因子
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