LWT-FOOD SCIENCE AND TECHNOLOGY
·
2020
·
IF 4.006
Hong-Kai Xie,Ao Li,Man-Tong Zhao,Min Zhang,Zhong-Yuan Liu,Fa-Wen Yin,Xiao-Yang Liu,Da-Yong Zhou,Fereidoon Shahidi,Bei-Wei Zhu
Phospholipids (PLs), the main lipid component in marine shellfish, consist mainly of glycerophosphocholine (GPC) and glycerophosphoethanolamine (GPE). This work compared the oxidative susceptibility of GPC and GPE in dried shellfish during storage and also investigated the effects of natural phenolic antioxidant on such oxidative susceptibility. The content of four representative polyunsaturated fatty acids (C18:3 n-3, C20:4 n-6, C20:5 n-3, and C22:6 n-3) esterified onto GPC or GPE in dried scallop adductor muscle during storage at two temperatures were matched with first-order kinetic models, in order to ascertain the oxidation reaction rate constant ( k ). The results showed that GPE possessed greater oxidation rate than GPC during storage, and GPC could be more effectively protected by the antioxidants of bamboo leaves (AOB, polar polyphenolic antioxidants) compared with GPE. This study provides a practical method for accurate evaluation of oxidative susceptibility of different PL classes in complex food systems.
研究领域:
食品科学
·
生物化学
✓ 已验证
DOI
高影响因子
Foods
·
2023
·Vol. 12
·期 18
·3467
·
IF 5.2
Weiqing Lan,Bingjie Zhang,Jintao Du,Shengyun Zhu,Xiao Xu,Jing Xie
The effects of allicin and antioxidant of bamboo leaves (AOB) on the quality of bullfrogs (Lithobates catesbeiana) during refrigerated storage (4 °C) were investigated. The quality changes in samples treated with deionized water (CK), allicin solution (All), antioxidant of bamboo leaves (AOB), and allicin solution combined with AOB solution (AA) in microbiological, physicochemical, and sensory evaluation were analyzed, respectively. The results demonstrated that combination treatment inhibited the increase in total viable counts, delayed the decrease in amino acid content, and retarded the sensory deterioration. Preservative treatment has an inhibitory effect on the early storage of PBC, which can reduce PBC by about 1.0 log CFU/g. The reduction in thiobarbituric acid (TBA) content and total volatile basic nitrogen (TVB-N) content indicated that combination treatment could better restrain the lipid oxidation and degradation of protein than the CK group and single-treatment group. In addition, the TVB-N content in the AA group still did not exceed the threshold on the 14th day. As a consequence, combination treatment prolonged the shelf life of bullfrogs for another six days. Therefore, allicin and AOB with excellent antioxidant and antimicrobial activity could be an effective approach to delay the biochemical reaction of refrigerated bullfrogs. This study has provided a potential approach for increasing the shelf life of bullfrogs and preserving their quality during refrigerated storage.
研究领域:
食品科学
·
微生物学
·
生物化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Sustainable Chemistry & Engineering
·
2024
·
IF 7.1
Haifeng Jiang,Chen Yang,Jiaxing Song,Peng Cao,Jie Chen,Jiaxin Wang,Wenpeng Hong
The development of low-cost energy storage materials and the high-value utilization of fly ash are two major challenges that need to be addressed in the field of renewable energy. This work proposes an alkaline hydrothermal treatment method suitable for fly ash modification and prepares a porous bamboo leaf-like structured supporting material for encapsulating polyethylene glycol (PEG) phase change components. The results show that the prepared modified fly ash-based thermal storage material has an excellent latent heat performance, reaching 103.9 J/g, which is 2.24 times that encapsulated by ordinary fly ash. Meanwhile, the thermal conductivity of the modified composites is increased by 48.6%. After 100 heat storage/release cycles, the latent heat value of PEG/MFA decreases by only 0.028%. The reason is that the bamboo leaf-like structure of the modified fly ash support material provides a larger specific surface area. At the same time, the interaction between the support material and PEG promotes the effective adsorption and filling of the PEG phase change material. Leakage tests show that the maximum filling amount of PEG in the composite is 65 wt %. Furthermore, the prepared phase change heat storage material shows a good temperature regulation ability in simulated environment applications. This work sheds light on developing effective disposal of solid waste in power plants and its applications in the field of energy storage.
研究领域:
能源材料
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2020
·
IF 3.232
Xiupei Yang,Dan Wang,Na Luo,Min Feng,Xiaohui Peng,Xiangjun Liao
A simple and green approach for the synthesis of photoluminescent N,S-carbon dots (N,S-CDs) has been proposed using a single natural source precursor (bamboo leaf) as raw materials. The as-synthesized N,S-CDs exhibited a highly stable, excitation wavelength-dependent emission, excellent photobleaching, alkali, and salt tolerance. Here, the mechanism of N,S-CDs luminescence was studied via the UV–vis absorption spectrum and photoluminescence spectroscopy . Based on the quenching properties of nitrophenol compounds on the fluorescence of N,S-CDs, the interaction between N,S-CDs and nitrophenol compounds was investigated on detail in aqueous solution. More importantly, the study on photophysical properties of the N,S-CDs may provide the basis for the development of the N,S-CDs for the fluorescent probe of nitrophenol compounds.
研究领域:
材料科学
·
环境科学
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
·
2020
·Vol. 146
·期 4
·1657-1665
·
IF 2.731
Xia Huimin,Gao Hui,Zhang Yuxi,Wang Zhongwei,Song Liang,Liu Lei,Tian Xiujuan,Huang Xiaowen,Yu Qing
The antioxidant of bamboo leaves (AOB) was used firstly to stabilize polypropylene (PP). Thermogravimetric analysis, oxidation onset temperature and oxidation induction time tests were carried out to test the thermal and thermo-oxidative stability of samples. The melt flow rate and yellowness index were used to characterize the processing stability and color of samples. Field emission scanning electron microscopy was used to determine the distribution of additives. Results showed that AOB improved the thermo-oxidative stability and processing stability of PP. The efficacy of AOB was comparable with that of Irganox 1010 in protecting PP. However, due to the dark yellow color of AOB, the problem of the discoloration of the polymer matrix was not solved.
研究领域:
材料科学
·
化学工程
✓ 已验证
DOI
高影响因子
Foods
·
2020
·Vol. 9
·期 2
·231
·
IF 4.092
Jinfeng Wang,Wenhui Yu,Jing Xie
This study investigated and determined the changes in various qualities of tuna samples that were glazed with rosmarinic acid, a bamboo leaf antioxidant, and sodium lactate and stored at −18 °C for 180 days. The water-holding capacity, cooking loss, color, texture, protein content, and total volatile basic nitrogen (TVB-N) were monitored, to study the effect of tuna glazed with different materials on the quality every 30 days. Low-field nuclear magnetic resonance (LF-NMR) was used to measure the water distribution of tuna in this paper. The results showed that the quality of unglazed tuna decreased significantly after 180 days of frozen storage. During frozen storage, the hardness anda* values of RG (glazed with the rosmarinic acid group), SG (glazed with the sodium lactate group), and CG (glazed with the composite of rosmarinic acid, sodium lactate, and the antioxidant of bamboo leaf) tuna decreased slowly, while the malondialdehyde (MDA) value of AG (glazed with the antioxidant of bamboo leaf group) tuna increased slowly. After 180 days of frozen storage, CG tuna had the highest protein content and the lowest TVB-N value, which may have been due to the synergistic effect of glazing materials. The tuna with CG also had the best freshness and quality after frozen storage. Considering the results, a composite of rosemary (0.3%), sodium lactate (3.4%), and antioxidants of bamboo leaves (0.12%) is the best material for glazing tuna.Keywords:glazed tuna;rosmarinic acid;sodium lactate;antioxidant of bamboo leaf;frozen storage
研究领域:
食品科学
·
生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MOLECULES
·
2018
·Vol. 23
·期 9
·2309
·
IF 3.098
Liling Wang,Minge Bai,Yuchuan Qin,Bentong Liu,Yanbin Wang,Yifeng Zhou
Ionic liquids (ILs), known as environmentally benign “green” solvents, were developed as an optimal solvent for the green extraction and separation field. In this paper, an ionic liquid-based ultrasonic-assisted extraction (IL-UAE) of flavonoids (FVs) from bamboo leaves ofPhyllostachys heterocyclawas developed for the first time. First, 1-butyl-3-methylimidazolium bromide ([Bmim] Br), with the best extraction efficiency, was selected from fifteen ionic liquids with diverse structure, like carbon chains or anions. Then, the influencing parameters of ionic liquid (IL) concentration, liquid-solid ratio, ultrasonic time, and ultrasonic power, were investigated by single factor tests, and further optimized using response surface methodology (RSM). In the optimization experiment, the best conditions were 1.5 mol/L [BMIM]Br aqueous solution, liquid-solid ratio 41 mL/g, ultrasonic time 90 min, and ultrasonic power 300 W. Furthermore, the microstructures of bamboo leaves and the recovery of FVs and [BMIM]Br were also studied. Therefore, this simple, green and effective IL-UAE method has potentiality for the extraction of FVs from bamboo leaves for the large-scale operations.Keywords:Phyllostachys heterocycle;bamboo leaves;ionic liquid;ultrasonic-assisted extraction;flavonoids
研究领域:
植物化学
·
分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nanoscale
·
2015
·Vol. 7
·期 33
·13840-13847
·
IF 7.394
Lei Wang,Biao Gao,Changjian Peng,Xiang Peng,Jijiang Fu,Paul K. Chu,Kaifu Huo
Silicon-based nanomaterials are promising anode materials in lithium-ion batteries (LIBs) due to their high theoretical capacity of 4200 mA h g−1, more than 10 times that of commercial graphite. Si nanoparticles (NPs) with a diameter of or below 10 nm generally exhibit enhanced lithium storage properties due to their small size and large surface area. However, it is challenging to generate such ultrafine Si NPs by a facile and scalable method. This paper reports a scalable method to fabricate ultrafine Si NPs 5–8 nm in size from dead bamboo leaves (BLs) by thermally decomposing the organic matter, followed by magnesiothermic reduction in the presence of NaCl as a heat scavenger. The ultrafine Si NPs show a high capacity of 1800 mA h g−1 at a 0.2 C (1 C = 4200 mA g−1) rate and are thus promising anode materials in lithium-ion batteries. To achieve better rate capability, the BLs-derived ultrafine Si NPs are coated with a thin amorphous carbon layer (Si@C) and then dispersed and embedded in a reduced graphene oxide (RGO) network to produce Si@C/RGO nanocomposites by a layer-by-layer assembly method. The double protection rendered by the carbon shell and RGO network synergistically yield structural stability, high electrical conductivity and a stable solid electrolyte interface during Li insertion/extraction. The Si@C/RGO nanocomposites show excellent battery properties with a high capacity of 1400 mA h g−1 at a high current density of 2 C and remarkable rate performance with a capacity retention of 60% when the current density is increased 20 times from 0.2 to 4 C. This work provides a simple, low cost, and scalable approach enabling the use of BL waste as a sustainable source for the production of ultrafine Si NPs towards high-performance LIBs.
研究领域:
材料科学
·
能源科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
EUROPEAN FOOD RESEARCH AND TECHNOLOGY
·
2014
·Vol. 239
·期 4
·661-667
·
IF 1.387
Xu Jiang,Qian Junqing,Li Shangqian
The utilization of bamboo-leaf extracts is limited by their weak solubility in lipidic media. As such, this study established an effective and relatively cheap method for preparation of ester of isoorientin isolated from bamboo-leaf extracts. Acylation of isoorientin with palmitic acid was efficient in a system containing dried tert -amyl alcohol and molecular sieves, yielding from 22 to 90 % bioconversion with different conditions; in detail, several factors (the origin and the amount of the lipase, temperature and water content of the system) were investigated in depth with the effect on the performance of the acylation reaction in this paper. Thereafter high purity ester (95 %) was obtained following a two-step solvent purification procedure and a chromatographic separation. With 1 H and 13 C nuclear magnetic resonance spectroscopy analysis, single product was detected to be 6″- O -palmitate isoorientin ester. Introducing an acyl group into isoorientin significantly improved its lipophilicity yet slightly reduced their antioxidant activity.
研究领域:
植物化学
·
食品科学
·
生物化学
✓ 已验证
DOI
高影响因子
Food Bioscience
·
2020
·
IF 3.067
Tao Huang,Zhongxiang Fang,Huizhu Zhao,Dalun Xu,Wenge Yang,Wenwen Yu,Jinjie Zhang
The effect of electron beam irradiation (EBI) on the physical properties of fish gelatin (FG) films with antioxidants of bamboo leaves (AOB) was investigated. The results indicated that EBI had a positive effect on the tensile strength , denaturation temperatures, opacity values and microstructure of FG-AOB films. The highest values of mechanical and thermal properties as well as opacity were observed at irradiation dosages of 5 and 7 kGy. Nevertheless, EBI decreased contact angle and raised water vapor permeability of the films at higher relative humidity (90-100%), suggesting the re-organisation of hydrophilic groups on the films surface. The infrared spectroscopy and microstructure results showed that proper irradiation dosages could produce cross-linking bonds between FG and AOB and form compact structures, contributing to the decrease of AOB release rates. Therefore, irradiated FG-AOB films showed good mechanical and thermal properties, which suggested that they have the potential to be developed as biodegradable food packaging material.
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
Foods
·
2024
·Vol. 13
·期 11
·1719
·
IF 4.7
Yadan Chen,Yanbin Wang,Liang He,Liling Wang,Jianchen Zhao,Zhenya Yang,Qin Li,Rui Shi
This study aimed to investigate the efficacy of supercritical CO2(SC-CO2) extraction in enhancing the extraction rate, purity, and antioxidant activity ofIndocalamus latifolius(Keng) McClure (Poaceae) leaf terpenoids (ILLTs). Crude extracts obtained from leaves were subjected to qualitative and quantitative analyses, revealing neophytadiene, phytol, β-sitosterol, β-amyrone, squalene, and friedelin as the primary terpenoid constituents, identified through gas chromatography–mass spectrometry (GC-MS). Compared with steam distillation extraction (SD), simultaneous distillation extraction (SDE), ultra-high pressure-assisted n-hexane extraction (UHPE-Hex), ultra-high pressure-assisted ethanol extraction (UHPE-EtOH), ultrasound-assisted n-hexane extraction (UE-Hex), and ultrasound-assisted ethanol extraction (UE-EtOH), SC-CO2exhibited a superior ILLT extraction rate, purity, and antioxidant activity. Scanning electron microscopy (SEM) observations of the residues further revealed more severe damage to both the residues and their cell walls after SC-CO2extraction. Under optimal parameters (4.5 h, 26 MPa, 39 °C, and 20% ethyl alcohol), the ILLT extraction rate with SC-CO2reached 1.44 ± 0.12 mg/g, which was significantly higher than the rates obtained by the other six methods. The subsequent separation and purification using WelFlash C18-l, BUCHI-C18, and Sephadex LH-20 led to an increase in the purity of the six terpenoid components from 12.91% to 93.34%. Furthermore, the ILLTs demonstrated cytotoxicity against HepG2 cells with an IC50value of 148.93 ± 9.93 μg/mL. Additionally, with increasing concentrations, the ILLTs exhibited an enhanced cellular antioxidant status, as evidenced by reductions in both reactive oxygen species (ROS) and malondialdehyde (MDA) levels.
研究领域:
植物化学
·
药理学
·
分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Separations
·
2024
·Vol. 11
·期 8
·220
·
IF 2.5
Jianqiang Hei,Jianjun Wang,Jin Wang,Daoqi Zhang,Wenting Song,Hang Xun,Xuefeng Guo,Xi Yao
Phyllostachys glauca McClureleaves (PML), as economical natural product material, contain abundant phenols, particularly flavonoids, with significant biological activities that contribute to their widespread applications in food, pharmaceutical, and cosmetic industries. To study the significant phenols in PML, an ultrasound-assisted deep eutectic solvent extraction method with high efficiency and low toxicity was established for extracting the phenols from PML and the bamboo leaves of 17 other bamboo species. Using the Ultra Performance Liquid Chromatography (UPLC) method, the content of phenols in the leaves of the 18 bamboo species was determined. PML were found to contain neochlorogenic acid, chlorogenic acid, cryptochlorogenic acid, isoorientin, and orientin at contents of 0.793 ± 00.17 mg/g, 0.491 ± 0.0081 mg/g, 0.485 ± 0.0043 mg/g, 0.465 ± 0.0021 mg/g, and 0.044 ± 0.0005 mg/g, respectively, with a total content of 2.278 mg/g. These contents were significantly higher than those found in the leaves of 17 other bamboo species. Additionally, the significant phenols, neochlorogenic acid, chlorogenic acid, and cryptochlorogenic acid were found simultaneously in the leaves of 15 bamboo species, especially in PML. Therefore, PML can be viewed as the natural product material with considerable application values, owing to its abundant phenols, and can exhibit its importance in utilizing neochlorogenic acid, chlorogenic acid, and cryptochlorogenic acid as resources.
研究领域:
植物化学
·
食品科学
·
药学
✓ 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）