FOOD CHEMISTRY
·
2024
·
IF 8.5
Wan-zhen Li,Zi-liang Song,Jun-le Li,Jia-hui Yu,Du-jian Deng,Xiao-qing Cai,Martin J.T. Reaney,Zi-zhe Cai,Yong Wang
Linusorbs (LOs), significantly influence oil quality and sensory properties of flaxseed oil. Trp-containing LOs exhibit distinct oxidative behavior when γ-tocopherol (γ-T) is present. Polar fractions of crude flaxseed oil were stripped via silica absorption, and reintroduced (LO and γ-T) separately into the oil matrix to investigate their interaction during storage. Compared with crude oil, LOs account for 18.49% reduction of p -anisidine value, while LOs with γ-T contributed to most of the endogenous antioxidant effect in crude oil. γ-T was found to suppress oxidation of Trp-containing LO at early stage (Met form), while facilitate oxidation while at their mid-stage (MetO form, Methionine sulfoxide). In vitro oxidation shows that CLD more likely cleaved into peptide fragments, while few products retain intact ring structures. LC-MS/MS analysis and silicon simulation revealed proximity between MetO and Trp residues, facilitating inter- or intra-molecular reactions and ring structure rupture. Remarkably, the presence of γ-T facilitate these phenomena.
研究领域:
食品科学
·
生物化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2024
·
IF 8.5
Zhong Li,Huilin Zhou,Xuan Liu,Weifei Wang,Dongming Lan,Yonghua Wang
The limited availability of phospholipase A 1 (PLA 1 ) has posed significant challenges in enzymatic degumming. In this study, a novel PLA1 (UM2) was introduced to address this limitation, which had a unique thermo-responsive ability to switch phospholipase and lipase activities in response to temperature variations. Remarkably, UM2 displayed an unprecedented selectivity under optimized conditions, preferentially hydrolyzing phospholipids over triacylglycerols—a specificity superior to that of commercial PLA 1 . Moreover, UM2 demonstrated high efficiency in hydrolyzing phospholipids with a predilection for phosphatidylcholine (PC) and phosphatidylethanolamine (PE). A practical application of UM2 on crude flaxseed oil led to a dramatic reduction in phosphorus content, plummeting from an initial 384.06 mg/kg to 4.38 mg/kg. Broadening its industrial applicability, UM2 effectively performed enzymatic degumming for other distinct crude vegetable oils with a unique phospholipid composition. Collectively, these results highlighted the promising application of UM2 in the field of oil degumming.
研究领域:
生物化学
·
食品科学
✓ 已验证
DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2025
·
IF 9.8
Yu-Sheng Wang,Ming-Yu Ding,Yan Chen,Xiao-Tong Hu,Yi-Xiu Zhang,Zi-Wei Fang,Hai-Hua Chen
In Ca 2+ -induced emulsion gels, rapid Ca 2+ release leads to uneven gel structures, impairing curcumin (Cur) protection and delivery. To overcome this issue, a novel approach combining low-temperature heating (40 °C) and mild acidic environments (pH 6.5) was proposed to gradually releas Ca 2+ from CaCO 3 . This strategy significantly improves the mechanical properties and stability of flaxseed protein (FP)-chitosan (CS) emulsion gels by forming a uniform and dense network structure. At a CaCO 3 concentration of 15 mg/mL, the gel exhibited optimal performance, increasing Cur's photostability and storage stability by 81.3 %, 61.6 %, and 54.8 %, respectively, compared to the control (Cur-oil). Increasing the CaCO 3 concentration also inhibited the release of Cur and free fatty acids, reducing bioaccessibility during in vitro digestion. Overall, this study provides new insights into the stability of bioactive compounds and expands the application of CaCO 3 -induced emulsion gels as delivery systems in the food industry.
研究领域:
食品科学
·
生物化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
·
2024
·
IF 4
Mengru Kong,Yanli Du,Xiaodie Chen,Ruixin Cai,Jianhua Xie,Mingyue Shen
Trans fatty acids (TFAs) are formed in refined linseed oil during the deodorization step. Effects of deodorization on TFA formation in vegetable oils have been intensively investigated. However, the role of refining process (degumming, neutralization, bleaching) before deodorization on TFA formation in the deodorization step remains unclear. In this study, TFA generation potential in linseed oils refined by different ways of degumming, neutralization, bleaching was evaluated, and changes in their quality indexes were also measured. Results showed that adequate refining could improve the quality of linseed oil, while inadequate neutralization or bleaching induced more TFA formation during the deodorization step, suggesting that pigments or free fatty acids in linseed oils might promote TFA formation. Meanwhile, spiked experiments, in which partly refined linseed oils were spiked with pigments or α-linolenic acid, confirmed that pigments or free fatty acids in linseed oils induced the isomerization of unsaturated fatty acids. This study demonstrated that TFA formation in refined linseed oils could be mitigated by optimizing refining processes before deodorization, and also provided theoretical basis for oil refining industry to control the oil quality.
研究领域:
食品科学
·
营养学
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
·
2020
·Vol. 21
·期 5
·1637
·
IF 4.556
Shiyuan Fang,Weiqiang Qiu,Jun Mei,Jing Xie
Carvacrol is a natural compound known to be a highly effective antibacterial; however, it is a hydrophobic molecule, which is a limitation to its use within food packaging. Flaxseed gum (FG) films containing different contents of carvacrol (C) were produced by a film-casting method with sonication. The effects of sonication power and time on the properties of the FG-C films were investigated by measuring the film thickness, mechanical properties, contact angle, opacity, water vapor permeability (WVP), water sorption isotherm, Fourier transform infrared spectroscopy(FTIR), differential scanning calorimetry (DSC), antibacterial and antioxidant activities, and microstructure. The results showed that sonication power and time had significant effects on mechanical and barrier properties, film opacity, and degradability (p< 0.05). The tensile strength (TS) and elongation at break (EB) values exhibited an obvious improvement after sonication, and FG-0.5C-6030 had the lowest TS (33.40 MPa) and EB (4.46%) values. FG-C films formed a denser structure and the contact angle was improved as a result of sonication, which improved the integration of carvacrol into the FG matrix. In terms of microstructure, sonication resulted in a homogeneous and continuous crosssection of FG-C films, and regular surface and cross-sectional images were obtained through the highest acoustic intensity and longest time treatment. The FG films incorporated with carvacrol displayed antibacterial properties againstStaphylococcus aureus,Vibrio parahaemolyticus,Shewanella putrefaciens, andPseudomonas fluorescens, as well as increased antioxidant properties, and sonication was proven to enhance both of them.Keywords:sonication;active films;flaxseed gum;antibacterial agent;carvacrol
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
JOURNAL OF FOOD SCIENCE
·
2023
·Vol. 88
·期 12
·5278-5290
·
IF 3.9
Xin-Yue Yang,Dan-Dan Wu,Cong-Cong Zhuang,Chao-Mei Ma
Secoisolariciresinol diglucoside ( SDG ) and tracheloside ( TCL ) are the main lignan components of flaxseed cake and safflower seed cake, which are by-products of oil extraction. Both SDG and TCL are metabolized into mammalian lignan enterolactone ( EL ) with the involvement of intestinal bacteria. In this research, we evaluated the anti-osteoporosis effects of SDG and the in vivo metabolites EL and enterodiol ( ED ) prepared in our previous work, as well as the newly isolated chemical constituents from safflower seed, including TCL , the lactone ring opening product of TCL ( OTCL ) and two alkaloids on the alloxan-induced zebrafish model. All the compounds showed significant anti-osteoporosis effects at 80 µM, with p < 0.05 for EL and p < 0.001 for other compounds compared with the model. SDG and TCL showed the most significant and concentration-dependent effects, with p < 0.001 compared with model at 20 µM. The alkaloids, N -coumaroylserotonin glucoside and N -feruloylserotonin glucoside, also showed anti-osteoporosis at 20 µM with p < 0.01, whereas EL , ED , and OTCL showed no significant effects. Quantitative real-time polymerase chain reaction revealed that SDG and TCL upregulated the expression of osteogenic genes Runx2, SP7, OPG, Col1a1a, Alp, ON, OPN , and OCN in alloxan-treated zebrafish. The in vivo metabolite of lignans, EL , showed significant anti-inflammatory effect ( p < 0.01) at 20 µM, which might also help to combat osteoporosis and other complications caused by excessive immune response in the body. The results provided scientific data for using the oil extraction by-products as sources of anti-osteoporosis compounds. Practical Application This study found that lignans in flaxseed cake and safflower seed cake exhibited anti-osteoporosis effects by upregulating the expression of osteogenic genes, making the oil extraction by-products sources of anti-osteoporosis compounds.
研究领域:
营养学
·
药理学
·
分子生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Polymers
·
2019
·Vol. 11
·期 10
·1578
·
IF 3.164
Haijuan Yang,Qiufeng Mo,Weizhou Li,Fengmei Gu
An organic coating is commonly used to protect metal from corrosion, but it is prone to failure due to microcracks generated by internal stress and external mechanical action. The self-healing and self-lubricating achieved in the coating is novel, which allows an extension of life by providing resistance to damage and repair after damage. In this study, a new approach to microencapsulating bifunctional linseed oil with polyurethane shell by interfacial polymerization. Moreover, the self-healing and self-lubricating coatings with different concentrations of microcapsules were developed. The well-dispersed microcapsules showed a regular spherical morphology with an average diameter of ~64.9 μm and a core content of 74.0 wt.%. The results of the salt spray test demonstrated that coatings containing microcapsules still possess anticorrosion, which is improved with the increase of microcapsules content, after being scratched. The results of electrochemical impedance spectroscopy showed a |Z|f=0.01Hzvalue of 104Ω·cm2for pure epoxy coating after being immersed for 3 days, whereas the coating with 20 wt.% microcapsules was the highest, 1010Ω·cm2. The results of friction wear showed that the tribological performance of the coating was enhanced greatly as microcapsule concentration reached 10 wt.% or more, which showed a 86.8% or more reduction in the friction coefficient compared to the pure epoxy coating. These results indicated that the coatings containing microcapsules exhibited excellent self-healing and self-lubricating properties, which are positively correlated with microcapsules content.
研究领域:
材料科学
·
腐蚀与防护
·
表面工程
✓ 已验证
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2022
·
IF 5.518
Lichang Zhang,Kaiyun Wu,Yaxin Chen,Ren Liu,Jing Luo
A novel kind of graphene/polyaniline hybrid microcapsules loaded with self-healing agent (linseed oil, LO) were synthesized by Pickering emulsion template method in this work. In our strategy, graphene oxide (GO) was used as Pickering emulsifier to stabilize emulsion droplet containing aniline and linseed oil . After the polymerization of aniline, graphene/polyaniline microcapsules loaded with linseed oil (LO@GO/PANI) were prepared. By adjusting GO concentration and oil-water ratio, the size of the emulsion droplet and LO@GO/PANI microcapsule can be controlled at about 15–20 µm. The successful synthesis of LO@GO/PANI microcapsules was proved by SEM, FT-IR and TGA . The unique GO/PANI hybrid shell combined the outstanding barrier property of GO and anti-corrosion function of PANI. The solvent resistance results showed that the as-prepared microcapsules possessed stronger resistance to organic solvents . A smart coating with dual functions of anti-corrosion and self-healing was prepared by dispersing the as-prepared LO@GO/PANI microcapsule in waterborne epoxy resin . As the contents of microcapsules was 10 wt%, the scratch of the coating was completely healed after 12 h observed from the microscope images. The electrochemical impedance spectroscopy (EIS) and salt spray test all verified that the incorporation of microcapsules could significantly improve the anti-corrosion performance of the water-borne coatings. After 40 days' immersion, the low frequency modulus of the composite coating was almost 2 orders of magnitude higher than that of pure epoxy coating, and no obvious corrosion product was observed after 500 h salt spray test.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
Gels
·
2023
·Vol. 9
·期 4
·318
·
IF 4.6
Xuejiao Ren,Xin Meng,Zhen Zhang,Hongyu Du,Tuoping Li,Na Wang
In this study, flaxseed gum (FG) was extracted using hot water extraction and ultrasonic-assisted extraction. The yield, molecular weight distribution, monosaccharide composition, structure, and rheological properties of FG were analyzed. The FG yield (9.18) achieved using ultrasound-assisted extraction (this sample was labeled as UAE) was higher than the yield (7.16) achieved with hot water extraction (this sample was labeled as HWE). The polydispersity, monosaccharide composition, and characteristic absorption peaks of the UAE were similar to that of the HWE. However, the UAE had a lower molecular weight and looser structure than the HWE. Moreover, zeta potential measurements indicated that the UAE exhibited better stability. An analysis of the rheological properties showed that the viscosity of the UAE was lower. Thus, the UAE had an effectively better yield of FG, preliminarily modified structure, and rheological properties, and provided a theoretical basis for its application in food processing.Keywords:flaxseed gum;ultrasound-assisted extraction;structural properties;rheological properties
研究领域:
食品科学
·
生物化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
RSC Advances
·
2022
·Vol. 12
·期 47
·30734-30741
·
IF 4.036
Caihong Su,Yancai Li,Jiabin Zhu,Yuan Gao,Qi Li,Shuangkui Du,Xiuzhu Yu
The present study aimed to decrease the brittleness of flaxseed oleogels based on candelilla wax (CLW) in combination with flaxseed gum (FG). Effects of flaxseed gum concentrations (0–0.4%) on the characteristics of flaxseed oleogels including oil binding capacity, textural, thermal, and rheological properties, and crystal polymorphisms were investigated. Higher concentrations (≥0.2%) of FG significantly decreased the textural parameters (e.g., hardness, fracturability) of oleogels (p < 0.05), suggesting that FG could decrease brittleness. Rheological results indicated that all flaxseed oleogels exhibited solid-like characteristics because the elastic modulus was larger than the viscous modulus. The elastic modulus of flaxseed oleogels presented a maximum value at 0.1% gum concentration. Any increase in gum concentration beyond this concentration decreased the elastic modulus. Increasing FG concentration up to 0.4% decreased the enthalpy of flaxseed oleogels during the melting process. The β′-polymorphic form is an orthorhombic perpendicular (O⊥) subcell structure. Similar β′ crystal forms were observed among flaxseed oleogels, indicating that FG did not affect them negatively. The study showed that the physical properties of flaxseed oleogels based on CLW could be significantly changed by FG addition. These results provided a deeper comprehension of the novel system, which should be considered a new way to obtain healthy fats with better plasticity for food applications.
研究领域:
食品科学
·
材料科学
✓ 已验证
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Juan Huang,Dongchen Liu,Qingding Wang,Mengting Xu,Shennan An,Lanling Chu,Tingxuan Yan
The study developed microcapsules by membrane emulsification and complex coacervation methods with whey protein (WP)-flaxseed gum (FG) and monodiglyceride fatty acids (MFA) to be used for resveratrol (RES) encapsulation. The effects of MFA and WP/FG ratios (1:0–1:0.15) on the properties of microcapsules were investigated. Zeta potential and infrared spectra analysis indicated the possible electrostatic attraction and hydrogen bonding between WP and FG. Fluorescence further confirmed the formation of WP/FG complex coacervates. Confocal laser scanning microscopy, X-ray diffraction and differential scanning calorimetry studies demonstrated that RES dissolved in MFA was encapsulated by the complex of WP and FG. The microcapsules exhibited an appearance of irregular flakes or blocks with folds and a high encapsulation efficiency (EE, > 96 %). MFA and FG increased the EE of RES. In vitro release study displayed that MFA and FG decreased the release rate of RES from the microcapsules. Due to the isolation effect of MFA and the wall materials, microcapsules had good photostability. The antioxidant ability of RES was enormously improved by the complexation with WP and FG. These findings provide an effective carrier to deliver polyphenols like RES and could be useful in the developments of foods and medicine.
研究领域:
食品科学
·
生物化学
·
药物开发
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Small
·
2024
·Vol. 20
·期 36
·2403048
·
IF 13
Wenbo Zhou,Renwei Zhang,Shijie Yu,Zexuan Peng,Caixin Zuo,Wenjuan Yang,Yafeng Li,Mingdeng Wei
Silicon-based anodes heavily depend on the binder to preserve the unbroken electrode structure. In the present work, natural flaxseed gum (FG) is used as a binder of silicon nanoparticles (SiNPs) anode for the first time. Owing to a large number of polar groups and a rich branched structure, this material not only anchors tightly to the surface of SiNPs through bonding interactions but also formed a hydrogen bonding network structure among molecules. As a result, the FG binder can endow the silicon electrode with stable interfacial adhesion and outstanding mechanical properties. In addition, FG with a high viscosity facilitates the homogeneous dispersion of the electrode components. When FG is used as a binder, the cycling performance of the Si anode is greatly improved. After one hundred cycles at an applied current density of 1 A g −1 , the electrode continues to display remarkable electrochemical properties with a significant cyclic capacity (2213 mA h g −1 ) and initial Coulombic efficiency (ICE) of 89.7%.
研究领域:
材料科学
·
能源存储
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）