You can search through the CSN LIbraries Find Articles page to search for peer-reviewed research on your topic. If you need to find out whether a source is peer-reviewed or not? Use Ulrichsweb to search by journal title name to see if your material has been through a rigorous peer-reviewed process.
On the results screen from any database choose the types of material you want. Including availability, "peer-reviewed" articles, publication dates, and subject areas you want to include (each database will look different, but the limiters on the left side of databases remains the same):
Food Chemistry-Related Databases and Resources
Selected Peer-Reviewed Journals
Set it so that you can search CSN Libraries through Google Scholar using this link: https://scholar.google.com/scholar_settings?hl=en#2
It also gives you access to research articles in institutional repositories, which are freely available on the web and searchable via Google Scholar.