Zhang, Siyu published the artcileSolvent-free enzymatic synthesis of 1,2-dipalmitoylgalloylglycerol: Characterization and optimization of reaction condition, Category: esters-buliding-blocks, the publication is Food Chemistry (2021), 128604, database is CAplus and MEDLINE.
A novel diacylglycerol-based galloyl structured lipid, 1,2-dipalmitoylgalloylglycerol (DPGG), was synthesized using the enzymic transesterification of Pr gallate (PG) and tripalmitin under solvent-free condition. An immobilized and com. available food-grade Candida antarctica lipase B, Lipozyme 435, was used as the biocatalyst. The reaction variables that affect the yield of DPGG were optimized using a 33 full factorial design. At 70°C, DPGG was obtained at a yield of 33.0 ± 2.0% with PG conversion at 44.8 ± 1.8% when the following condition was used: 25 substrate molar ratio of tripalmitin to PG, 120 h reaction time, and 25% enzyme load relative to the total substrate weight The structure of reaction product was elucidated using Fourier-transform IR spectroscopy (FT-IR), electrospray ionization high-resolution accurate-mass tandem mass spectrometry (ESI-HRAM-MS/MS), and 1D and 2D NMR spectroscopy (NMR). The effects of different lipases and galloyl donors/acceptors on the transesterification were also investigated.
Food Chemistry published new progress about 121-79-9. 121-79-9 belongs to esters-buliding-blocks, auxiliary class Natural product, name is Propyl 3,4,5-trihydroxybenzoate, and the molecular formula is C13H16O2, Category: esters-buliding-blocks.
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https://en.wikipedia.org/wiki/Ester,
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