JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
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2022
·Vol. 103
·期 8
·4034-4046
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IF 4.125
Xinlei Zhao,Xue Yang,Yihong Bao,Yang Guo,Jiayuan Luo,Shilong Jiang,Wei Zhang
BACKGROUND The food industry has begun to develop foods fortified with unsaturated fatty acids; however, the susceptibility of pine nut oil to oxidation and other properties limits its use in food production. Researchers often inhibit the oxidation of oil by adding antioxidants. After the combination of polyphenols and proteins, the complex formed can improve or enhance the performance of the emulsion when it stabilizes the emulsion. Encapsulating, protecting, and controlling the release behavior of vitamin D (V D ) during digestion through an emulsion delivery system can effectively overcome limitations such as easy degradation during processing and storage. This research uses tannic acid, gallic acid, tea polyphenol, and vanillic acid to prepare Pickering emulsions, and the type of phenolic compound is explored by multi-dimensional characterization and the amount of emulsion. RESULTS The influence of traits, microstructure, stability, V D load application, and effect on the emulsion matrix's encapsulation rate and bioaccessibility is studied. A method was investigated to enhance the oxidative stability of whey protein isolate-stabilized emulsions by introducing phenol. Pickering emulsions could be obtained in the presence of phenol, while the type of phenol played a relatively important role, probably because the mechanism involved interactions between particles. Viscosity and creaming stability of emulsions increased with crosslinking of phenol in emulsions. In addition, the presence of phenol in emulsions significantly increased the bioaccessibility of encapsulated V D after in vitro digestion. CONCLUSION The method presented in this study was important for improving the oxidative stability of pine nut oil emulsions, expanding the application of pine nut oil in the food industry, and providing the theoretical and application basis of application and active substance emulsion delivery systems. © 2022 Society of Chemical Industry.
研究领域:
食品科学
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营养学
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产品关联
DOI
PubMed
高影响因子
Food and Bioprocess Technology
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2015
·Vol. 8
·期 9
·1958-1973
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IF 2.691
Xu Enbo,Wu Zhengzong,Long Jie,Wang Fang,Pan Xiaowei,Xu Xueming,Jin Zhengyu,Jiao Aiquan
In order to investigate the effect of thermostable α-amylase on the rice physicochemical properties, free/bound phenolics, and antioxidant capacities during extrusion, seven different gradients of enzyme concentration from 0 to 6 ‰ (db of starch) were used for both hulled and whole rice. For rice treated with the same extrusion conditions, special mechanical energy (SME) input changed slightly in the presence of fiber fraction (bran/husk), while decreased greatly with increasing α-amylase levels due to the reduced viscosity and friction between mechanical elements and materials. Huge physicochemical modifications were achieved in expansion ratio (ER), bulk density (BD), water absorption/solubility indices (WAI/WSI), and viscosity via enzymatic liquefaction. The total phenolic content (TPC) retention increased dramatically (93.06 and 86.33 % for hulled and whole rice, respectively) with increasing enzyme concentrations to 6 ‰, indicating that a milder reaction environment was created with less thermal-mechanical impact on phenolics. By linear analysis, the TPC of extruded rice hulled or not was strongly and positively related with BD ( R = 0.9185 or 0.9719) and WSI ( R = 0.9719 or 0.8857), whereas negatively related with SME ( R = −0.9460 or −0.8906). Besides, the free/bound phenolics combined with antioxidant activities (1,1-diphenyl-2-picryl-hydrazyl (DPPH), 2,2-azino-bis-(3-ethylbenzothiazoline-6-sulphonic acid (ABTS), and ferric reducing antioxidant power (FRAP)) were all improved significantly by the separate/synergetic addition of enzyme and bran/husk used as, respectively, the “special protective agent” and rich source of bioactive compounds. In summary, thermostable α-amylase could achieve many beneficial effects on both physicochemical properties and antioxidant activities of rice extruded with/without fiber for promoting the development of cake making, wine brewing, infant food industries, or animal husbandry.
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
RSC Advances
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2015
·Vol. 5
·期 98
·80388-80396
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IF 3.84
Yunhua Li,Xin Yang,Linhui Zhu,Hua Zhang,Binghui Chen
This study investigates phenol hydrodeoxygenation on supported Ni2P, prepared via the sol–gel and TPR methods, and noble metal (Pd, Pt and Ru)–Ni2P catalysts, prepared from Ni2P by the partial in situ reduction of a noble metal precursor. 10% Ni2P/SiO2 had a relatively uniform distribution of Ni2P nanoparticles and a highly active activity for phenol hydrodeoxygenation. Phenol conversion increased with increasing reaction temperature and the main products on noble metal–Ni2P/SiO2 also changed from cyclohexanol at 453 K to cyclohexane at 493 K. In comparison with supported Ni2P or noble metal catalysts and their physical mixture, Pd–Ni2P/SiO2 presented the highest conversion activity and cyclohexane selectivity. Physicochemical characterization showed that the number of active sites on the catalysts increased and electron transfer occurred from Ni2P to the noble metal due to the intimate contact between Ni2P and the noble metal. A synergistic effect of the deoxygenation and carbonyl hydrogenation from Ni2P and the hydrodeoxygenation from Pd resulted in an improvement of the catalytic activity and differences in the selectivity of the catalysts.
研究领域:
催化化学
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能源化学
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材料科学
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产品关联
DOI
高影响因子
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
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2015
·
IF 2.912
Wen-Qing Li,Hua Zhou,Mei-Yun Zhou,Xing-Peng Hu,Shi-Yi Ou,Ri-An Yan,Xiao-Jian Liao,Xue-Song Huang,Liang Fu
Garlic (Allium sativum L.), which is a widely distributed plant, is globally used as both spice and food. This study identified five novel phenolic compounds, namely, 8-(3-methyl-(E)-1-butenyl)diosmetin, 8-(3-methyl-(E)-1-butenyl)chrysin, 6-(3-methyl-(E)-1-butenyl)chrysin, and Alliumones A and B, along with nine known compounds 6–14 from the ethanol extract of garlic. The structures of these five novel phenolic compounds were established via extensive 1D- and 2D-nuclear magnetic resonance spectroscopy experiments. The effects of the phenolic compounds isolated from garlic on the enzymatical or nonenzymatical formation of sulfur-containing compounds produced during garlic processing were examined. Compound 12 significantly reduced the thermal decomposition of alliin, whereas compound 4 exhibited the highest percentage of alliinase inhibition activity (36.6%).
研究领域:
植物化学
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食品科学
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天然产物化学
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产品关联
DOI
PubMed
高影响因子
ACS Sustainable Chemistry & Engineering
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2018
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IF 6.14
Guangce Jiang,Yinghui Hu,Guoqiang Xu,Xindong Mu,Huizhou Liu
Hydrodeoxygenation of phenolic components in pyrolysis bio-oil is considered to be a potential strategy for producing renewable aromatic chemicals. The key issue of this process is the establishment of an effective catalytic system that can cleave the CAr–O bonds without affecting the aromatic structure. To achieve this goal, an efficient heterogeneous catalyst with solid acid support (WOx/ZrO2) and active metal (Ru) was prepared in this study. The Ru–WOx/ZrO2 catalyst can effectively convert model phenolic compounds into aromatic hydrocarbons. For a mixed phenolic sample, the conversion to and selectivity for arenes were all around 90%. The good selectivity was proved to be strongly related to the surface adsorption and acid properties of the catalyst as well as the reaction pathway. Moreover, the hydrodeoxygenation of a pretreated bio-oil was also conducted and presented a satisfactory yield of arenes at 240 °C with 1 MPa of H2 reacted for 5 h. The depolymerization of high-molecular-weight phenolic oligomers was found to be significant during the catalytic process, which further enhanced the yield of aromatic monomers.
研究领域:
能源化学
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催化化学
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产品关联
DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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2013
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IF 2.206
Yucui Hou,Yuehong Ren,Wei Peng,Shuhang Ren,Weize Wu
Phenolic compounds, which are important substances in industry, are mainly derived from coal liquefaction oil, coal tar, and petroleum, and also from biomass via pyrolysis. However, the traditional process of separation of phenols from oil using water, NaOH, and H2SO4 causes serious environmental problems. In this work, imidazolium-based ionic liquids (ILs) were used to extract phenol from a model oil of hexane and phenol in order to reduce environmental risk. It was found that these ILs could successfully separate phenols from hexane, and a small amount of [Bmim]Cl, equimolar to that of phenol in hexane, was enough to extract phenol with a high extraction efficiency of 99%. Anions of imidazolium-based ILs have a significant influence on the phenol extraction efficiency, which follows the order: Cl– > Br– > BF4– > PF6–. But the cation of these ILs shows a relatively small influence on the extraction. Particularly, [Bmim]Cl shows best performance in terms of phenol extraction efficiency. Furthermore, it is not sensitive to temperature changes and can be performed at ambient temperature. The extracted phenol in ILs could be recovered by evaporation, and the regenerated ILs could be reused for four cycles with no obvious loss in the phenol extraction efficiency. [Bmim]Cl was also used to extract phenols from real coal liquefaction oil, and the extraction efficiency of phenols could reach 90%.
研究领域:
化学工程
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环境科学
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产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2016
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IF 3.299
Yue Zhang,Zhiyong Li,Huiyong Wang,Xiaopeng Xuan,Jianji Wang
Phenolic compounds are an important class of compounds for organic chemical industry. In their traditional production processes, strong acid and base have to be used for the separation of phenolic compounds from oils, which often causes serious environmental problems. In this work, choline derivative salts [N 1,1, n C 2 OH]Cl ( n = 1, 4, 6, 8) have been used as new extractants for the separation of 26 kinds of phenolic compounds from model oil (toluene) by forming deep eutectic solvents (DESs). It is found that only 16 kinds of phenolic compounds can be removed from toluene with single-step removal efficiency from 28.1% to 94.7%, strongly depending on the chemical structure of phenolic compounds. The nature, position and number of substituent groups in the phenolic compounds have a great effect on their removal efficiency. Far infrared spectroscopy and density functional theory calculations indicate that hydrogen bonds formed between –OH of the phenolic compounds and anion of the choline derivative salts is the main driving force for such DES-based separation. The correlation observed experimentally between structure of phenolic compounds and their removal efficiencies has been discussed from hydrogen bonding in DESs, electrostatic interaction of cation and anion of the choline salts, and solvation of the phenolic compounds and choline salts in the oil.
研究领域:
有机化学
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环境科学
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产品关联
DOI
高影响因子
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
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2021
·Vol. 2021
·期 48
·5069-5076
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IF 2.524
Qiao Han,Hui Wang,Mooeez Ur Rehman,Xin Shang,Haijun Chen,Na Ji,Xinli Tong,Hui Shi,Yujun Zhao
Graphical A phyllosilicate-derived NiFe/SiO 2 catalyst with both metallic Ni and NiFe alloy active sites prepared by ammonia-evaporation method shows excellent intrinsic activity in the hydrodeoxygenation of phenol to cyclohexane. A phyllosilicate-derived NiFe/SiO 2 catalyst (NiFe/SiO 2 −AE) was successfully prepared by the ammonia evaporation method and applied in the hydrodeoxygenation of phenol to cyclohexane. Another two catalysts were also prepared for a comparison by impregnation (NiFe/SiO 2 −IM) and deposition-precipitation (NiFe/SiO 2 −DP) methods, respectively. It was found that Ni−Fe alloy, the active sites for the hydrogenolysis of C−O bond, can be obtained by the reduction of NiFe 2 O 4 (IM) or phyllosilicate (DP and AE) by H 2 . The AE strategy can generate more phyllosilicate structure, which improves the dispersion of both Ni−Fe alloy and metallic Ni sites and allows the formation of more interface between these two kinds of sites as well. Therefore, the NiFe/SiO 2 −AE exhibits a significantly high catalytic performance in the HDO of phenol to cyclohexane. Moreover, the turnover frequency of Ni−Fe alloy sites over NiFe/SiO 2 −AE catalysts is much higher than those of other two catalysts. It is suggested that the enhanced synergy between the two kinds of active sites in the adsorption of C−O groups and hydrogen molecules ensures the superior intrinsic activity in HDO process.
研究领域:
化学工程
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材料科学
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2021
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IF 13.273
Xiaolin Luo,Zhenggang Gong,Guangxu Yang,Liulian Huang,Lihui Chen,Li Shuai
Practical, high-yield conversion of lignocellulosic biomass to bulk chemicals is the goal of a profitable biorefinery. However, the development of current biorefining industries is highly restricted by process complexity and processing cost. In this article, we developed a one-pot oxidative process and a one-pot reductive process that allowed selective conversion of lignocellulosic biomass (e.g. hardwood) to multiple bulk chemicals such as monophenolics, diols, and organic acids in total yields of up to 96.8 wt%. Alkali was used to catalyze the disruption of biomass components via retro -aldol reactions to small active intermediate molecules, which were in-situ oxidized or reduced to stable products. As a result, monophenolics, which were derived from lignin, reached an unprecedented yield of 59.3 wt% (71.9 mol%, on the basis of lignin content). Organic acids also reached an unprecedented yield of 111.7 wt% (77.8 C%, on the basis of polysaccharide content). The diverse chemicals could meet broad needs of our society. Cost analysis indicates that the current processes could be profitable in the petrochemical-dominated market.
研究领域:
化学工程
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可再生资源
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DOI
高影响因子
COLLOID AND POLYMER SCIENCE
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2021
·Vol. 299
·期 11
·1833-1841
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IF 1.931
Haq Fazal,Yu Haojie,Wang Li,Teng Lison,Mehmood Sahid,Haroon Muhammad,Bilal-Ul-Amin,Uddin Md Alim,Fahad Shah,Shen Di
Phenol is the toxicant present in cigarette smoke that causes pulmonary diseases, eyes infection, and even various kinds of cancer. So, in this research, an attempt was done to prepare a suitable absorbent to remove phenol from cigarette smoke. A novel bio-based adsorbent succinylated carboxymethyl starch (S-CMS) was prepared by reacting carboxymethyl starch (CMS) with succinic anhydride (SA) in the presenting of N, N -dimethylformamide (DMF) solvent and pyridine. The structure of the S-CMS was confirmed by spectroscopic techniques including proton nuclear magnetic resonance and Fourier transform infrared. The S-CMS crystallinity and thermal properties were checked by x-ray diffraction and thermogravimetric analysis. The results showed a decrease in thermal properties and crystallinity for S-CMS. The S-CMS were tested as adsorbents for the removal of phenol. The adsorption efficiencies of CMS, S-CMS1, S-CMS2, and S-CMS3 towards phenol were shown to be 0.297 g/g, 0.321 g/g, 0.322 g/g, and 0.324 g/g, respectively. Graphical abstract
研究领域:
环境科学
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材料科学
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化学工程
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产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF FOOD PROPERTIES
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2022
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IF 3.388
Ming-Yang Wang,Ping Zhang,Yu-Zhu Zhang,Xiao-Yan Yuan,Rong-Xiang Chen
Osmanthus fragrans (Thunb.) Lour. flowers are important natural resource of phenolic compounds, which have antioxidant activities and have been consumed as functional food and dietary supplements for thousand years. Ultra-performance liquid chromatography coupled with electrochemical detection (UPLC-ECD) was developed to simultaneously analyze the eight phenolic compounds in Osmanthus fragrans flowers collected from different regions across China. The UPLC-ECD fingerprint was established for identification and comprehensive quality control. The antioxidant capacities of Osmanthus fragrans flowers were evaluated, and results were compared with those spectrophotometric antioxidant methods. A highly positive relationship was confirmed between the total peak area of characteristic components in chromatogram and the antioxidant potential determined by spectrophotometry with correlation coefficient greater than 0.80 (p < .01). Grey relational analysis showed that acteoside had the highest degree of correlation with antioxidant capacity. These results provided evidence to support the use of UPLC-ECD as a simple, rapid, and reliable method for electroactive phenolic component determination and antioxidant capacity quantification in vitro system.
研究领域:
植物学
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分析化学
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食品科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
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2023
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IF 6
Wenpeng Hong,Yu Zhang,Jiaxing Song,Haipeng Liu,Ling Zhang,Hang Wang,Yan Zhang,Haifeng Jiang
The extraction of phenolic compounds from biomass is an important way to replace chemical synthesis techniques, and catalytic pyrolysis of biomass is an effective method to obtain phenolic compounds with high selectivity. In this work, cobalt-modified montmorillonite K-10(CMT) catalyst was prepared by using cobalt salt and montmorillonite K-10(MMT), and used to catalyze the pyrolysis of corn stalk(CS) to produce phenol-rich bio-oil. The catalytic pyrolysis characteristics reflected by the liquid and gaseous components were compared using gas chromatography-mass spectrometry(GC-MS) and online mass spectrometry(online MS), and the catalytic pyrolysis behavior of corn stalk was analyzed by using the thermogravimetric analyzer(TGA). The addition of catalyst resulted in the increase of apparent activation energy of pyrolysis process but increased selectivity for phenolic compounds. Compared with the blank sample, the relative content of phenolic compounds in bio-oil increased by 11.99 %, and the selectivity of alkyl-phenols was stronger. In addition, the results also showed that the synthesized catalyst promoted the production of H 2 and CH 4 during the catalytic pyrolysis. The optimum ratio of the prepared catalyst was 6%Co/15%MMT. These works provide an alternative approach to upgrading bio-oil product.
研究领域:
能源与燃料化学
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催化材料科学
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）