Study on the Structure and Bioactivity of Polysaccharides under Cassava Stalk Stress.

Various carbon sources affect the growth of the fruiting body, and the cassava stalk is considered a promising carbon source for . The composition, functional group characteristics, molecular weight distribution, antioxidant activity in vitro, and growth effect of LGG of polysaccharides (GLPs) under cassava stalk stress were investigated by gas chromatography-mass spectrometry, near-infrared spectroscopy, and gel chromatography. The results showed that GLPs consisted of D-glucose, D-galactose, and seven other monosaccharides.

Analysis of Lipids in Pitaya Seed Oil by Ultra-Performance Liquid Chromatography-Time-of-Flight Tandem Mass Spectrometry.

Red pitaya () is an essential tropical fruit in China. To make more rational use of its processing, byproducts and fruit seeds, and the type, composition, and relative content of lipids in pitaya seed oil were analyzed by UPLC-TOF-MS/MS. The results showed that the main fatty acids in pitaya seed oil were linoleic acid 42.

Analysis of Lipids in Green Coffee by Ultra-Performance Liquid Chromatography-Time-of-Flight Tandem Mass Spectrometry.

Lipid components in green coffee were clarified to provide essential data support for green coffee processing. The types, components, and relative contents of lipids in green coffee were first analyzed by ultra-performance liquid chromatography-time-of-flight tandem mass spectrometry (UPLC-TOF-MS/MS). The results showed that the main fatty acids in green coffee were linoleic acid (43.