LWT-FOOD SCIENCE AND TECHNOLOGY
·
2021
·
IF 4.952
Bing Cui,Wenxin Chen,Hongshan Liang,Jing Li,Di Wu,Shuxin Ye,Bin Li
The thermal stability of the κ-carrageenan/konjac gum (KC/KGM) mixed gel during heating treatment (at 85 °C for 30 min) does not satisfy the demand of the practical application. To solve this problem, gellan gum (GG) or/and Ca 2+ were introduced in the κ-carrageenan/konjac gum (KC/KGM) mixed system to enhance mechanical and thermal properties. The effect of GG and Ca 2+ on the gel matrix properties was studied by two deformation test (TDT), rheological measurement, scanning electron microscopy (SEM), combined with visual observation. The results showed that neither GG nor Ca 2+ alone could reduce the deterioration of the mechanical properties of the KC/KGM gel after heat treatment (at 85 °C for 30 min). Only the participation of GG and Ca 2+ could ensure the consistent mechanical properties of the mixed gel before and after heating. The rheological and micro-rheological analysis confirmed that the KC/KGM gel with GG and Ca 2+ could always remain solid-state without gel-sol transition under heat treatment. In addition, the thermo-irreversible gels with different texture properties were prepared by adjusting the mass ratio of KC and KGM. Hence, this study may enrich the design of novel gel-based food ingredients.
研究领域:
食品科学
·
生物材料
✓ 已验证
DOI
高影响因子
CHEMISTRY AND TECHNOLOGY OF FUELS AND OILS
·
2024
·Vol. 60
·期 1
·113-118
·
IF 0.6
Ye Zhongbin,Liu Tianyu,Xiao Bao,Xian Xiaokang,Lai Nanjun
Synthesized a kind of polyacrylamide konjac gum double network gel system, and studied the possibility of replacing mechanical bridge plug with this system. Studied the effects of covalent bond cross-linking, ionic bond cross-linking and monomer ratio on the mechanical properties of gel, including the stress-strain curve, elastic modulus, critical stretch and fracture energy. And conducted indoor simulation wellbore sealing experiments. The results show that the double network gel has higher strength than the single network gel, and the plugging ability of the well bore is greatly improved, which is expected to replace the mechanical bridge plug in construction.
研究领域:
材料科学
·
石油工程
✓ 已验证
产品关联
DOI
高影响因子
FOOD CHEMISTRY
·
2025
·
IF 9.8
Junbo Chu,Songyi Lin,Xiuping Dong,Bo Liu,Haiyou Dong,Simin Zhang
As a widely consumed prepared food, the preservation of nutrient retention and sensory quality in batter fried oysters is a significant concern. Deep frying, air frying, and vacuum frying (VF) were used to prepare battered fried oysters. Guar gum (GG) and xanthan gum (XG) were added at 0.2 % ( w /w) to mitigate surface cracking caused by vacuum pressure fluctuations during VF processing. Results indicated that both GG and XG combined VF significantly preserved oyster nutrients while reducing lipid and protein oxidation. Two predictive models were developed based on best optimized battered oyster processing parameters. Model-1 used multi-dimensional variables to predict shelf life with MAPE 2.88 % and R 2 0.9992, showing high accuracy. Model-2/3, using storage temperature/time as inputs and quality indices as outputs, effectively captured freshness changes. This study aims to provide a theoretical framework for the development, processing, and quality control of seafood.
研究领域:
食品科学
·
生物技术
·
营养学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FOOD HYDROCOLLOIDS
·
2024
·
IF 11
Xiliang Yu,Lin Han,Qinggang Xu,Shengjie Li,Sangeeta Prakash,Xiuping Dong
This study explored the feasibility of adding different ratios of konjac gum to xanthan gum (KGM/XG) as a regulating component to improve the texture, rheological and 3D-printing properties of high internal phase emulsions (HIPEs) using egg white microgels (EWMGs). In this approach, the EWMGs and KGM/XG formed hybrid particles through non-covalent interactions based on hydrogen bonding, supplemented by hydrophobic and ionic interactions. The size, zeta potential, and hydrophobicity of the EWMGs-KGM/XG particles could be fine-tuned by adjusting the KGM/XG ratio. Incorporating KGM/XG enhanced the ability of EWMGs to reduce the interfacial tension in oil/water systems, resulting in smaller droplet sizes within the HIPEs. Additionally, KGM/XG formed a network structure with the EWMGs, improving the storage modules, loss modules, recovery rate, and hardness of the resulting HIPEs. Adding KGM/XG improved the HIPE properties, such as apparent viscosity, shear thinning, self-support, and thixotropy related to 3D printing, although with a reduction in critical strain. When the KGM/XG ratio was 1/1, the printed pyramid shape had a clear line and no oil leakage, and the stability was best after storage at 4 °C for 5 days. Furthermore, the characteristics of HIPEs can be tailored to meet different processing and production requirements by adjusting the KGM/XG ratio.
研究领域:
食品科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
FOOD HYDROCOLLOIDS
·
2024
·
IF 11
Yingmeng Hou,Yuanda Sun,Shiyu Jia,Wentao Su,Shasha Cheng,Mingqian Tan,Haitao Wang
Due to the challenges posed by petroleum-based plastics in terms of degradation and their contribution to environmental pollution, researchers have focused on natural biodegradable packaging materials. Herein, a biodegradable, unidirectional released, bilayer active film based on Konjac gum/hydroxypropyl methylcellulose (KGM/HPMC) were developed. Specifically, Pickering nano-emulsion was formed via ultrasonic self-assembly of Thyme essential oil (TEO) and a suspension of oxidized chitin nanocrystals. The dual-network form by KGM/HPMC effectively incorporated the TEO droplets in Pickering nano-emulsion through intermolecular hydrogen bonding, demonstrating good solubility between the TEO droplets and film matrix. The mechanical properties of the active film are greatly improved due to the protective effect provided by the outer layer in the double-layer active emulsion film design. Furthermore, the double-layer active film enables a unidirectional release of essential oils, thereby enhancing the efficiency of essential oil utilization. In addition, the double-layer active film has beneficial properties, including antioxidation, antibacterial effects, ultraviolet radiation protection, and biodegradability compared to cling film. This film was employed for the preservation of salmon, and the findings indicated that the bilayer active film, formulated with 15% Pickering emulsion content, notably retarded the escalation of total volatile basic nitrogen (TVB-N) and pH levels in salmon. Furthermore, it successfully reduced the proportion of dominant bacteria (specifically Pseudomonas ) in salmon samples. The double-layer active film developed in this study demonstrates the potential for extending the shelf life of aquatic products.
研究领域:
材料科学
·
食品科学
·
环境科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED POWDER TECHNOLOGY
·
2025
·
IF 4.2
Tichen Wang,Jiushuai Deng,Yijun Cao,Qin qizheng,Chen Zhang,Yue Gao
Conventional inorganic depressants are widely used in the flotation separation of chalcopyrite and sphalerite. However, their widespread use entails some inevitable disadvantages, such as environmental hazards, waste generation, and additional costs. In this work, Konjac gum (KG) was investigated as a non-toxic and eco-friendly sphalerite depressant in the flotation separation of chalcopyrite and sphalerite. Micro-flotation and artificial mixed mineral experiments suggested that the addition of KG dramatically depressed the floatability of sphalerite while having a negligible depressive effect on chalcopyrite at pH = 7. Wettability measurements, Zeta potential measurements, adsorption measurements and interaction energy calculations showed that KG have a stronger affinity to sphalerite rather than chalcopyrite, preventing the adsorption of collector on sphalerite surface. FTIR and XPS measurements demonstrated that KG could interact with sphalerite and change the chemical environment of oxygen atoms on sphalerite surface. The Bronsted acid-base interaction, hydrogen bonding, and the attraction between the hydrophobic sections of KG and sphalerite surface were considered as the potential mechanisms in the adsorption of KG on sphalerite.
研究领域:
矿物加工
·
环境科学
·
表面化学
·
材料科学
·
冶金学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF FOOD SCIENCE
·
2022
·Vol. 87
·期 7
·2953-2964
·
IF 3.693
Jia-Nan Yan,Xiao-Fan Cui,Xin-Yu Jiang,Lin Li,Wen Sun,Hai-Tao Wu
The combination of κ -Carrageenan (KC) and konjac gum (KGM) were introduced to examine the impact on gelation and microstructural behaviors of scallop male gonads hydrolysates (SMGHs) and the involvement of intermolecular forces. In terms of G ′ response of SMGHs/KGM/KC, it obviously enhanced by 3.6- and 108.5-fold than controls of KGM/KC and SMGHs/KC at 0.1 Hz, accompanying increasing melting temperatures from 27.9 (KGM/KC) and 30.0 (SMGHs/KC) to 33.7°C (SMGHs/KGM/KC), respectively. Additionally, SMGHs/KGM/KC with decreasing relaxation time T 23 and blue shift of hydroxyl group than controls suggested higher water retention capacity and ordered conformation. Moreover, SMGHs/KGM/KC formed compact networks with thick walls as reflected by cryo-SEM and showed rougher surface with more aggregation as reflected by AFM. Furthermore, electrostatic in couple with hydrophobic interactions were dominant interactions, while hydrogen bonds were involved in subordinately in SMGHs/KGM/KC. Practical Application Scallop ( Patinopecten yessoensis ) male gonads are always discarded during processing despite high-protein content and edibility. In the current research, scallop male gonad hydrolysates (SMGHs) exhibited gelation behavior, which have a potential role in developing marine source protein as a functional food base such as kamaboko gels, can, sausage and spread and even delivery vehicles for bioactive compounds.
研究领域:
食品科学
·
生物物理学
·
材料科学
✓ 已验证
DOI
PubMed
高影响因子
Advanced Healthcare Materials
·
2024
·
IF 10
ShengZhe Zhou,Xueliang Zhang,Wei Ni,Yu He,Ming Li,Caixia Wang,Yubing Bai,Hao Zhang,Min Yao
Bacterial infections and excessive inflammation present substantial challenges for clinical wound healing. Hydrogels with mild photothermal (PTT) effects have emerged as promising agents owing to their dual actions: positive effects on cells and negative effects on bacteria. Here, an injectable self-healing hydrogel of oxidized konjac glucomannan/arginine-modified chitosan (OKGM/CS-Arg, OC) integrated with protocatechualdehyde-@Fe (PF) nanoparticles capable of effectively absorbing near-infrared radiation is synthesized successfully. The OC/PF hydrogels exhibit excellent mechanical properties, biocompatibility, and antioxidant activity. Moreover, in synergy with PTT, OC/PF demonstrates potent antibacterial effects while concurrently stimulating cell migration and new blood vessel formation. In methicillin-resistant Staphylococcus aureus -infected full-thickness mouse wounds, the OC/PF hydrogel displays remarkable antibacterial and anti-inflammatory activities, and accelerates wound healing by regulating the wound immune microenvironment and promoting M2 macrophage polarization. Consequently, the OC/PF hydrogel represents a novel therapeutic approach for treating multidrug-resistant bacterial infections and offers a technologically advanced solution for managing infectious wounds in clinical settings.
研究领域:
生物医学工程
·
材料科学
·
纳米技术
·
伤口愈合
·
传染病学
·
免疫学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Foods
·
2024
·Vol. 13
·期 2
·284
·
IF 4.7
Liying Huang,Ronglin Liao,Nitong Bu,Di Zhang,Jie Pang,Ruojun Mu
In this study, nanofiber films were prepared by electrospinning technology with polyvinyl alcohol (PVA) and konjac glucomannan (KGM) as raw materials. Tea polyphenols (TPs) were incorporated in the above matrix, which increased physicochemical (thermal and mechanical characteristics) and antibacterial properties of the nanofiber films. The release behavior of phenolic compounds from PVA/KGM-TPs nanofiber films was determined in different food simulants; antioxidant and antibacterial activity of the films were also evaluated. The results showed that the addition of KGM increased the physical and chemical properties of the films. The tensile strength (TS) and elongation at break (EB) increased from 5.40 ± 0.33 to 10.62 ± 0.34 and from 7.24 ± 0.32 to 18.10 ± 0.91, respectively. PVA/KGM-TPs nanofiber films performed controlled release of TPs, with final release of 49.17% in 3% acetic acid, 43.6% in 10% ethanol, and 59.42% in 95% ethanol. The nanofiber films showed good antioxidation properties, with the free radical scavenging rate increasing from 1.33% to 25.61%, and good antibacterial properties with inhibition zones againstE. coliandS. aureusof 24.33 ± 0.47 mm and 34.33 ± 0.94 mm, respectively. In addition, the as-prepared films showed significant preservation performance for raw bananas at 25 °C.
研究领域:
食品科学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CARBOHYDRATE POLYMERS
·
2025
·
IF 12.5
Meiting Liu,Hongbin Pu,Da-Wen Sun
Microplastics that eventually convert into nanoplastics are emerging global pollutants and the development of efficient adsorbents for their removal is urgently needed. For sustainability and eco-friendliness, in the current study, a polysaccharide aerogel (LPA) was prepared with lily bulbs as the raw material by following water bath extraction, purification and freeze-drying processes. The prepared porous LPA was then applied as a packing material in a mini adsorption column for removing polystyrene (PS) microplastics and nanoplastics. Results revealed that LPA was over 90 kDa in size and consisted mainly of glucomannan and the removal efficiencies for microplastics and nanoplastics were 93.68 % and 96.98 %, respectively, mainly due to hydrogen bonding interactions and porous structure. The adsorption column was robust and maintained a remarkable removal efficiency (over 90 %) for 3 months. In addition, the effects of other extraction methods and pre-freezing conditions before the freeze-drying process were studied. Compared with water bath extraction, ultrasonic-assisted extraction and microwave-assisted extraction transformed the LPA structure, resulting in reduced adsorption ability, while the pre-freezing temperature could be used to adjust the specific surface area. Meanwhile, the effects of temperature and pH of adsorbates were also investigated. The LPA was heat sensitive and not stable under strongly acidic (pH 4) or strongly alkaline (pH 10) conditions, resulting in a sharp decline in removal efficiency. The adsorption behaviour of LPA was further described via adsorption kinetic models, showing that the microplastics and nanoplastics adsorptions could be fitted by pseudo-second-order and pseudo-first-order models, respectively. Moreover, the adsorption performance of LPA was compared with some other aerogels and had a better result. This research provides a promising, sustainable alternative for microplastic and nanoplastic removal that has potential for pollutant adsorption and sample purification as well as a low preparation cost.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2024
·Vol. 48
·期 11
·5018-5024
·
IF 2.7
Chen Yang,Qinghong Zeng,Zhiguang Guo
The problem of water pollution has become increasingly serious, posing a great threat to human health. Among the various water pollutants, a significant one is dyes, which have strong toxicity and carcinogenicity and seriously pollute water bodies, thus further posing a great threat to the health of aquatic life, animals, plants and human beings. However, dyes are widely used in textile, paper, and printing industries, and thus it is difficult to prevent their discharge into water bodies during the production process. Therefore, it is necessary to develop efficient methods to remove dyes from process wastewater as much as possible for wastewater purification. In this regard, the adsorption method has become one of the most effective methods to remove dyes because of its simple process and low cost. In this study, we prepared a biomimetic seaweed absorbable membrane (BSAM). This membrane has a unique porous structure and can adsorb dye molecules. After testing, the highest removal rate of methylene blue dye reached 97.72%. This type of membrane looks like seaweed, can curl when dry, is easy to disperse in water, and has excellent water solubility. In addition, because of its hydrophilicity, it exhibits good separation efficiency in the separation of water-in-oil emulsions. Thus, this membrane has certain application potential in the treatment of dye wastewater and dye-containing oil water in special processes on ships and in oil fields.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2024
·
IF 18.5
Na Wen,Shuangshuang Li,Hongzhi Jiang,Jiachao Yang,Weibo Yang,Yunhao Song,Jinlin Long,Jiwu Zhao,Zhihui Lin,Xunbin Yu,Yen Wei,Shiyun Lu,Xueping Huang,Tianhua Zhou
Gastric ulcers accompanied by acute or chronic bleeding represent a significant risk of fatality. However, the development of effective strategies for achieving rapid hemostasis and wound healing in gastric ulcer bleeding represents a formidable challenge. To address this challenge, thrombin-derived C-terminal peptide (TCP-25) is employed as a targeted agent, and it is incorporated into two novel injectable and biocompatible carboxymethyl chitosan (CMCs) hydrogels via Schiff's base reaction. The TCP-25 peptide hydrogels display optimal adaptability within the distinctive gastrointestinal microenvironment, demonstrating a balance of acid resistance and degradation, along with controlled release and bioactivity, and good bio-adhesive properties. Both in vitro and in vivo reveal that the hydrogel achieves rapid hemostasis. In an ethanol-induced gastric ulcer model in rats, it demonstrates that the hydrogel effectively inhibits gastric ulcer bleeding by 92% within 24-h, exhibiting efficacy that surpasses that of omeprazole medicine, a commonly used clinical treatment. This enhanced performance is attributed to the synergistic effects of the CMCs hydrogel and TCP-25 peptide in effectively achieving hemostasis, inhibiting bacterial growth, and promoting gastric wound healing in acute or chronic bleeding gastric ulcers. Consequently, the present work offers promising clinical applications for rapid hemostasis and wound healing in gastric ulcers.
研究领域:
生物医学工程
·
材料科学
·
药学
·
胃肠病学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）