Inarejos-Garcia, Antonio M. published the artcileAuthentication of Commercial Powdered Tea Extracts (Camellia sinensis L.) by Gas Chromatography, SDS of cas: 140-11-4, the main research area is tea extract Camellia catechin liquid gas chromatog.
The popularity and increasing demand for botanicals is correlated with the growth of nutraceuticals and new functional products on the market. Unfortunately, also fraudulent practices are increasing. In quality control, standardized powd. tea extracts (Camellia sinensis L. Kuntze) are usually analyzed by colorimetry or liquid chromatog. A complementary gas chromatog. method was explored for its potential to deliver characteristic volatile profiles. Nineteen com. available powd. tea extracts of different standardizations were compared with certified tea leaves. Experiments under different preprocessing and processing conditions showed that raw material temperature and storage can affect the volatile composition Severe adulteration and falsification issues were identified. Some com. products did not show the characteristic Camellia sinensis profile at all. Unexpected compounds, such as organic solvents, synthetic antioxidants and intermediates of the catechin synthesis, were found in considerable amounts The demonstrated volatile profiling of powd. tea extracts provided information on safety, authenticity and product quality.
ACS Food Science & Technology published new progress about Antioxidants. 140-11-4 belongs to class esters-buliding-blocks, name is Benzyl acetate, and the molecular formula is C9H10O2, SDS of cas: 140-11-4.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics