Impact of a novel probiotic Lactobacillus strain isolated from the bee gut on GABA content, antioxidant activity, and potential cytotoxic activity against HT-29 cell line of rice bran was written by Ghamry, Mohamed;Ghazal, Ahmed Fathy;Al-Maqtqri, Qais Ali;Li, Li;Zhao, Wei. And the article was included in Journal of Food Science and Technology (New Delhi, India) in 2022.Formula: C8H16O This article mentions the following:
Rice bran was fermented with Lactobacillus apis, isolated from the bee gut as a novel probiotic strain, and Saccharomyces cerevisiae to investigate the relationship between its metabolites and antioxidant activity, nutraceutical value, and cytotoxic activity against the HT-29 cell line. The findings showed that L. apis improved the antioxidant activity (DPPH of 37.73%) and antioxidant capacity (ABTS of 37.62 mg Trolox/g,), as well as, hydroxyl radical-scavenging activity (91.55%) of rice bran compared to S. cerevisiae. The metabolic anal. of volatile compounds revealed an increase of alcs. and lactones in the samples fermented with S. cerevisiae. While the samples fermented with L. apis displayed an increase of ketones, esters, and thiazoles. On the other hand, L. apis and S. cerevisiae exhibited a significant ability to increase γ-aminobutyric acid during different fermentation times. Compared with non-fermented samples (18.54%), L. apis increased the cytotoxic activity of rice bran against the HT-29 cell line to 34.17%, and S. cerevisiae to 31.34%. These results suggest that the fermentation of rice bran with S. cerevisiae and L. apis provides a promising strategy to improve the antioxidant activity and nutraceuticals of rice bran, and a potential source for plant-based pharmaceutical products. In the experiment, the researchers used many compounds, for example, Oct-1-en-3-ol (cas: 3391-86-4Formula: C8H16O).
Oct-1-en-3-ol (cas: 3391-86-4) belongs to alcohols. Similar to water, an alcohol can be pictured as having an sp3 hybridized tetrahedral oxygen atom with nonbonding pairs of electrons occupying two of the four sp3 hybrid orbitals. Secondary alcohols are easily oxidized without breaking carbon-carbon bonds only as far as the ketone stage. No further oxidation is seen except under very stringent conditions.Formula: C8H16O
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts