The term "food expression" does not have a specific meaning in English.
It is not a commonly used phrase and may be confusing to readers. Instead, it is more clear and specific to use terms such as "food-related phrase" or "culinary expression" depending on the context. For example, "The chef used a popular food-related phrase to describe his dish" or "The cookbook was full of creative culinary expressions that inspired me to try new recipes."
We have a huge appetite for food expressions.
Featuring more than 2,100 terms, Foodict is an extensive dictionary of local and international food expressions.
Although the reported performance of food grade expression systems is usually low compared to standard expression systems using E. coli (Nguyen et al. 2011a ), an advantage of applying GRAS (i.e., food-grade, Peterbauer et al. 2011 ) expression systems is that the costs to satisfy food safety requirements could be drastically reduced.
A strong argument to employ food grade expression systems however is that such, the costs to satisfy food safety requirements may be significantly reduced (Mierau et al. 2005 ).
Since vitamin C is an important and widely used food supplement, expression of 2,5-DKG reductase with such food grade systems could indeed represent an interesting option.
In addition, the here applied food grade expression systems do not contain potentially harmful, transferable antibiotic resistence markers (Peterbauer et al., 2011 ).
The aim of the present work was to evaluate the food grade expression systems pSIP and NICE for their capacity to produce the industrially important enzyme 2,5-DKG reductase from C. glutamicum (order Actinomycetales).
Real-time PCR is widely used to detect and quantify DNA and cDNA in such diverse applications as the detection of transgenic contamination in food or expression studies [ 1, 2].
We observed an enrichment of DE methionine cycle genes in fetal livers of male C57BL/6 J mice at gestational day 18, of which the mothers had been exposed to 50%% food restriction (expression data obtained from GSE49964).
Food-grade expression systems require that the resultant strains should only contain materials from food-safe microorganisms, and no antibiotic resistance marker can be utilized.
Our results demonstrate that this stable, food-grade expression system is suitable for enzyme production and pathway engineering, especially for the production of food-grade enzymes and metabolites.
