STUDY ON THE VOLATILE COMPONENT IN LOTUS FLORAL ORGANS (Nelumbo nucifera ‘LST’) BY THE DIRECT HEADSPACE COUPLED WITH GAS CHROMATOGRAPHY-MASS SPECTROMETRY (HS-GCMS)

Abstract

This research used the flower buds of Lotus cultivar for stolons (Nelumbo nucifera ‘LSt’) which are agricultural by-products in Tay Ninh province, as the main material to survey the volatile constituents of Lotus flower in Vietnam. The study also supplied an overview of the Lotus cultivar for stolons through taxonomic identification. The volatile compositions in different organs of flower bud from Lotus cultivar for stolons, were analyzed through the direct Headspace coupled with Gas chromatography-Mass spectrometry (GCMS). The research identified 59 volatile compounds from the different floral organs. The major aromatic components of the perianth (sepals and petals) are heptadecane; 3-heptadecene and 5-heptadecene, 1-bromo-; whereas the aroma from Lotus flower’ s stamens and receptacles have similarity on the main components are caryophyllene; 1,4-dimethoxybenzene and pentadecane. Besides, the antimicrobial activity in the absolute that was extracted from Lotus cultivar for stolon’s flower bud was also tested on a few microbial strains which are restricted for use in cosmetics under TCVN 13634:2023. As a result, the absolute of Lotus cultivar for stolon’ s flower bud has the activity against Staphylococcus aureus and Candida albicans.