4265-97-8Relevant articles and documents
ESSENTIAL OIL PRODUCED BY CHRYSOSPORIUM XEROPHILUM IN COCONUT
Kinderlerer, Judith L.,Hatton, Paul V.,Chapman, Amanda J.,Rose, Malcolm E.
, p. 2761 - 2764 (1988)
An essential oil (0.3percent v/w) was produced after fermentation of coconut for nine months by Chrysosporium xerophilum.Sixty per cent of the volatiles were aliphatic methyl ketones (C5-C13), esters and secondary alcohols whilst 38percent were present as free medium chain length fatty acids (C6-C12).A new class of ester, 2-heptyl esters of C8, C10 and C12 fatty acids, was identified by GC-MS and confirmed by synthesis.It is suggested that ester formation, ketone formation and alkane synthesis are mechanisms for removing medium chain fatty acids (C6-C12) which, if allowed to accumulate in the substrate, would be toxic to the fungus.Key Word Index - Cocos nucifera; Palmae; Chrysosporium xerophilum; fungus; substrate conversion coconut; methyl ketones; 2-heptyl esters; detoxification.
Kolbe Electrolysis of Biomass-Derived Fatty Acids Over Pt Nanocrystals in an Electrochemical Cell
Yuan, Gang,Wu, Chan,Zeng, Guorong,Niu, Xiaopo,Shen, Guoqiang,Wang, Li,Zhang, Xiangwen,Luque, Rafael,Wang, Qingfa
, p. 642 - 648 (2019/12/24)
Electrochemical valorization of non-food biomass-derived carboxylates into fuels is promising for the conversion, storage, and distribution of renewable electricity. Herein, we demonstrate that biofuels, hydrogen, and bicarbonate can be simultaneously produced in an electrochemical cell by one-step electrolysis of free fatty acids under ambient conditions on 3D self-supported ultralow Pt loading (2 wt %) electrode. The three valuable products can naturally separate from each other during the electrolysis in the alkaline aqueous solution. The experimental suggests that Pt(100) and Pt(110) are favorable for the production of non-Kolbe and Kolbe hydrocarbons, respectively. DFT calculation further clarifies the adsorption and stabilization of the reaction intermediates on Pt(100) and Pt(110).
Boosting the Catalytic Performance of Metal–Organic Frameworks for Steroid Transformations by Confinement within a Mesoporous Scaffold
Cirujano, Francisco G.,Luz, Ignacio,Soukri, Mustapha,Van Goethem, Cedric,Vankelecom, Ivo F. J.,Lail, Marty,De Vos, Dirk E.
supporting information, p. 13302 - 13306 (2017/10/17)
Solid-state crystallization achieves selective confinement of metal–organic framework (MOF) nanocrystals within mesoporous materials, thereby rendering active sites more accessible compared to the bulk-MOF and enhancing the chemical and mechanical stability of MOF nanocrystals. (Zr)UiO-66(NH2)/SiO2 hybrid materials were tested as efficient and reusable heterogeneous catalysts for the synthesis of steroid derivatives, outperforming the bulk (Zr)UiO-66(NH2) MOF. A clear correlation between the catalytic activity of the dispersed Zr sites present in the confined MOF, and the loading of the mesoporous SiO2, is demonstrated for steroid transformations.
