Effect of phenolic antioxidants on the thermal oxidation stability of high-energy–density fuel

Jia, Tinghao; Zhao, Mengchao; Pan, Lun; Deng, Chao; Zou, Ji‐Jun; Zhang, Xiangwen

doi:10.1016/j.ces.2021.117056

Cited by 17 publications

(9 citation statements)

References 40 publications

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“…The association between the ABTS% and the phenolic compounds could be ascribed to the specific structure of the phenolic hydroxyl groups. The resonance between their aromatic benzene rings and free electron pair on the phenolic oxygen can accelerate the delocalization of the electrons, increasing resistance from the oxygen free radicals (Jia et al, 2022). Additionally, the antioxidant activities can vary due to the disparities in the active components of the products.…”

Section: Effect Of Lactic Acid Fermentation On Antioxidant Activitiesmentioning

confidence: 99%

Evaluation of phenolics biotransformation and health promoting properties of blueberry juice following lactic acid bacteria fermentation

et al. 2023

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Lactic acid bacteria are widely used as probiotics in food fermentation and exhibit various health-promoting properties. This study describes the effects of lactic acid bacteria (LAB) on the phenolic profiles, antioxidant activities, and enzyme inhibition prosperities of blueberry juice. Three different strains (Lactobacillus acidophilus JYLA-16, Lactobacillus plantarum JYLP-375, and Lactobacillus rhamnosus JYLR-005) were selected to ferment the blueberry juice at 37 °C for 48 h. After fermentation, the content of total phenolics and flavonoids increased. Meanwhile, the UPLC-LTQ-MS/MS system conducted the biotransformation of phenols during fermentation. LAB fermentation induced an upgraded trend of syringic acid, ferulic acid, erucic acid, rutin, catechin, epicatechin, and isoorientin. Pearson's correlation analysis revealed that phenolics' metabolism probably contributed to enhancing antioxidant activities. LAB also improved active ingredient retention and antioxidant capacities after in vitro simulated digestion. Finally, we investigated the α-glucosidase inhibitory and α-amylase inhibition of the fermented juice and found that LAB fermentation could improve the inhibition of these enzymes. This study indicated that LAB fermentation could be an efficient strategy for enhancing functional activities in blueberry juice by bio-transforming the phenolics.

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Section: Effect Of Lactic Acid Fermentation On Antioxidant Activitiesmentioning

confidence: 99%

Evaluation of phenolics biotransformation and health promoting properties of blueberry juice following lactic acid bacteria fermentation

et al. 2023

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“…The inadequate oxidation stability of the fuel leads to a decline in quality, thereby reducing energy efficiency . During the cruise of an aircraft, the fuel could be heated to above 200 °C in its pipeline . At this temperature, the fuel would undergo complex reactions with dissolved oxygen and generate insoluble products attached to the inner wall of the tube.…”

Section: Introductionmentioning

confidence: 99%

“…7 During the cruise of an aircraft, the fuel could be heated to above 200 °C in its pipeline. 8 At this temperature, the fuel would undergo complex reactions with dissolved oxygen and generate insoluble products attached to the inner wall of the tube. Furthermore, sediments from thermal oxidation would disrupt the stable operation of propulsion systems and eventually lead to catastrophic failures.…”

Section: Introductionmentioning

confidence: 99%

Strategically Designed Hyperbranched Polyglycerol as an Efficient Integrated Additive for Hydrocarbon Fuels

Jiang

Shao

et al. 2023

J. Phys. Chem. C

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In this study, palmitoyl and hindered phenolic hyperbranched polyglycerol (CBHPG), with hyperbranched polyglycerol (HPG) as the structural core and hindered phenol or alkyl chain as the decorated shell, has been strategically designed and synthesized as an efficient integrated additive to enhance the energy efficiency and inhibit the oxidation coking of hydrocarbon fuels. The superior thermal stability and solubility of CBHPG were confirmed by thermal gravimetric analysis and dynamic light scattering. In the presence of CBHPG with high antioxidant activity, the oxidation induction time of n-undecane increased more than 2-fold at 170 °C. In deposition tests, the amphiphilic macromolecule CBHPG showed excellent performance with 58% oxidation coking inhibition rate of Chinese Jet Fuel (RP-3). The Jet Fuel Thermal Oxidation Stability test at 355 °C also exhibited that CBHPG could greatly reduce the deposit of RP-3 by decreasing the deposit rating from >4 to <1. In cracking experiments, the addition of 0.1 wt % CBHPG with sufficient polymerization could increase the conversion of n-undecane by 17.6%, with the corresponding heat sink by 6.1% at 675 °C. The above results indicated that CBHPG could efficiently enhance the performance of hydrocarbon fuels due to multipurposes in antioxidation, coking inhibition, and cracking promotion. CBHPG with a strategically designed structure as an integrated additive shows great promise in improving the energy efficiency and safety in future advanced aircraft.

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“…Antioxidants commonly used in organic materials can effectively delay the oxidation process. 11 Based on the mechanism of antioxidation, 12 antioxidants can be categorized as free radical terminators or hydroperoxide decomposers. 13,14 Aromatic amines (e.g., N-isopropyl-N 0 -phenyl-p-phenylenediamine) and hindered phenolics (e.g., butylated hydroxytoluene) belong to the former type, which can capture free radicals by donating active hydrogen atoms.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Machine-learning-assisted molecular design of phenylnaphthylamine-type antioxidants

Wang

et al. 2022

Phys. Chem. Chem. Phys.

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Effect of phenolic antioxidants on the thermal oxidation stability of high-energy–density fuel

Cited by 17 publications

References 40 publications

Evaluation of phenolics biotransformation and health promoting properties of blueberry juice following lactic acid bacteria fermentation

Evaluation of phenolics biotransformation and health promoting properties of blueberry juice following lactic acid bacteria fermentation

Strategically Designed Hyperbranched Polyglycerol as an Efficient Integrated Additive for Hydrocarbon Fuels

Machine-learning-assisted molecular design of phenylnaphthylamine-type antioxidants

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