Table 3.
TOFc | Productivityd | STYe | ||||
---|---|---|---|---|---|---|
Xb | 0.2 | 0.7 | 0.2 | 0.7 | 0.2 | 0.7 |
McGlc | 13 | 6.9 | 1240 | 640 | 86 | 44 |
PcGlc | 8.9 | 2.9 | 901 | 292 | 57 | 19 |
aUsing a substrate to enzyme (S/E) ratio of 67,000 mol mol–1. Reaction conditions: 35 °C, 25% (v/v) DMSO, 100 mM initial concentration of 2; 200 or 397 mM of 2-phenylethanol for McGlc or PcGlc-based reactions, respectively. The quantification of quercetin and compound 6 enabled the determination of the total (i.e., hydrolysis and transglycosylation) and the transglycosylation-specific conversion, respectively
bX: conversion of glycosyl donor 2
cTurnover frequency: 104 mol of 6·(mole of catalyst·h)–1
dCatalyst productivity: g of 6·(g catalyst·h)–1
eSpace–time yield: g of 6·(L·h)–1