Comparative study of volatile aroma compounds in eight kinds of natto was written by Liu, Ye;Su, Hang;Song, Huan-lu;Su, Ke-ran;Wang, Xin. And the article was included in Shipin Gongye Keji in 2016.Safety of 2,4,5-Trimethyloxazole This article mentions the following:
In order to compare the difference of volatile compound in different kinds of natto, self-make natto, 5 kinds of natto from Japan, and 2 kinds of natto from China were analyzed by SPME-GC-O-MS, sensory evaluation, and electronic nose. Results showed that there was no difference between self-make and the other kinds of natto on compound type, but the whole compound content of self-make natto were less than that of natto from Japan, especially ketone and pyrazine, which were more than that of natto from China. By PCA, there was large intersection among self-make, Hokkaido, and Yanjing natto, suggesting that the three kinds of natto had similar middle note. In the experiment, the researchers used many compounds, for example, 2,4,5-Trimethyloxazole (cas: 20662-84-4Safety of 2,4,5-Trimethyloxazole).
2,4,5-Trimethyloxazole (cas: 20662-84-4) belongs to oxazolidine derivatives. Oxazolidine-based compounds are well-known chiral auxiliaries and strategic molecular moieties in chemistry since they can effectively mask or mimic amino acid units or amino alcohols. As well as other multifunctional heterocyclic compounds, oxazolidine rings play an essential role in organic and medicinal chemistry, behaving, in some cases as powerful antitumor agents.Safety of 2,4,5-Trimethyloxazole
Referemce:
Oxazolidine – Wikipedia,
Oxazolidine | C3H7NO – PubChem