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2. Research Progress on the Interactions of Phenolic Acid with Protein and Carbohydrate and Their Effect on Bread Dough

Author

XIN Jiaying, LIU Simiao, GE Yize, SONG Zengwu, SUO Bohai, XIA Chungu

Subjects
phenolic acid, protein, carbohydrate, interaction, ternary system, Food processing and manufacture, TP368-456
Abstract

In recent years, researchers have often modulated the sensory and functional properties of foods through the interaction among various food components. Phenolic acids, proteins and carbohydrates widely exist and play important roles in flour products. Until now, existing studies primarily concentrate on the interactions of phenolic acid with protein and carbohydrate, along with their applications in several fields such as food processing and healthcare. The intricate interactions in the phenolic acid-protein-carbohydrate ternary system impart different sensory and functional properties to flour products. In this article, we review the research progress on the interactions among phenolic acid, protein and carbohydrate and their influence on the sensory and functional properties of bread dough, hoping to provide theoretical guidance for the application of the ternary system composed of phenolic acids, proteins and carbohydrates in flour products.

Published
2024
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11. Stabilization of Pd0 by Cu Alloying: Theory‐Guided Design of Pd3Cu Electrocatalyst for Anodic Methanol Carbonylation.

Author

Shi, Yunru, Hu, Yi‐Fan, Ye, Jinyu, Zhong, Gang, Xia, Chungu, Liu, Zhi‐Pan, Huang, Yang, and He, Lin

Subjects
COPPER, CARBONYLATION, THERMAL shock, ACTIVATION energy, ADSORPTION capacity, METHANOL as fuel
Abstract

Electrocatalytic carbonylation of CO and CH3OH to dimethyl carbonate (DMC) on metallic palladium (Pd) electrode offers a promising strategy for C1 valorization at the anode. However, its broader application is limited by the high working potential and the low DMC selectivity accompanied with severe methanol self‐oxidation. Herein, our theoretical analysis of the intermediate adsorption interactions on both Pd0 and Pd4+ surfaces revealed that inevitable reconstruction of Pd surface under strongly oxidative potential diminishes its CO adsorption capacity, thus damaging the DMC formation. Further theoretical modeling indicates that doping Pd with Cu not only stabilizes low‐valence Pd in oxidative environments but also lowers the overall energy barrier for DMC formation. Guided by this insight, we developed a facile two‐step thermal shock method to prepare PdCu alloy electrocatalysts for DMC. Remarkably, the predicted Pd3Cu demonstrated the highest DMC selectivity among existing Pd‐based electrocatalysts, reaching a peaked DMC selectivity of 93 % at 1.0 V versus Ag/AgCl electrode. (Quasi) in situ spectra investigations further confirmed the predicted dual role of Cu dopant in promoting Pd‐catalyzed DMC formation. [ABSTRACT FROM AUTHOR]

Published
2024
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20. Synthetic Leaves Based on Crystalline Olefin-Linked Covalent Organic Frameworks for Efficient CO2Photoreduction with Water

Author

Yang, Na, Yan, Wenkai, Zhou, Zi-Jian, Tian, Chengcheng, Zhang, Peng, Liu, Honglai, Wu, Xin-Ping, Xia, Chungu, Dai, Sheng, and Zhu, Xiang

Abstract

We report, for the first time, a new synthetic strategy for the preparation of crystalline two-dimensional olefin-linked covalent organic frameworks (COFs) based on aldol condensation between benzodifurandione and aromatic aldehydes. Olefin-linked COFs can be facilely crystallized through either a pyridine-promoted solvothermal process or a benzoic anhydride-mediated organic flux synthesis. The resultant COF leaf with high in-plane p-conjugation exhibits efficient visible-light-driven photoreduction of carbon dioxide (CO2) with water (H2O) in the absence of any photosensitizer, sacrificial agents, or cocatalysts. The production rate of carbon monoxide (CO) reaches as high as 158.1 µmol g–1h–1with near 100% CO selectivity, which is accompanied by the oxidation of H2O to oxygen. Both theoretical and experimental results confirm that the key lies in achieving exceptional photoinduced charge separation and low exciton binding. We anticipate that our findings will facilitate new possibilities for the development of semiconducting COFs with structural diversity and functional variability.

Published
2024
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