Profiling of FAHFAs in edible oils by chemical isotope labeling-assisted LC-MS: Impact of refining on FAHFA levels in rice bran oil.

Fatty acid esters of hydroxy fatty acids (FAHFAs) are bioactive lipids with promising health benefits, including anti-inflammatory, anti-diabetic, antioxidant, anti-cancer, hepatoprotective, and cardio-protective effects. Herein, the diversity and levels of FAHFAs in 16 common and exotic plant oils using the chemical isotope labeling-assisted LC-MS (CIL-LC-MS) approach revealed 236 regioisomers from 57 FAHFA families, with rice bran oil (RBO) showing the highest FAHFA content (6.12 μg/g), followed by avocado oil (AO; 2.

Antiviral phenolic compounds from Arundina gramnifolia.

Five new phenolic compounds, gramniphenols C-G (1-5), and eight known compounds (6-13) were isolated from the whole plant of Arundina gramnifolia. Compounds 1, 4, and 5 showed anti-tobacco mosaic virus activity, with IC(50) values of 20.8, 40.

Antiviral chromones from the stem of Cassia siamea.

Seven new chromones, siamchromones A-G (1-7), and 12 known chromones (8-19) were isolated from the stems of Cassia siamea. Compounds 1-19 were evaluated for their antitobacco mosaic virus (anti-TMV) and anti-HIV-1 activities. Compound 6 showed antitobacco mosaic virus (anti-TMV) activity with an inhibition rate of 35.