You have @arberg's answer showing a report of an inhibitory effect of vitamin C on E. coli. Here's a PLoS One paper, in different conditions. It shows vitamin C rescues cultures that had no growth the previous night.
As the comments suggested, expect to see different results in different conditions.
Literature reviews before an experiment are important. When you're new to an area they are VERY HARD. Do them anyway. Give yourself a set amount of time, sit down at your computer, and start chugging away. Then do it again. And again. And again.
If you have a large number of possible articles, try narrowing your search. I often do this by tweaking my search terms or by limiting my search to a particular subset of journals that are more likely to give me what I'm looking for. Set up a hierarchy for how you read. Start by scanning the abstracts. If it looks helpful, pull the article and look at the figures. Note the article, your conclusion, and the authors' conclusions in a file somewhere that you can find later. If there is something interesting or useful in the introduction, follow the references.
Again, this is VERY HARD, but VERY IMPORTANT. Don't skimp on this step by just asking people.