Vietnamese scientist finds the inhibitor of invasive weeds from rice husk

The grass and waterrod trees once harmed rice fields all over the world were inhibited by four rice husk compounds.

For the first time, a study by Vietnamese scientists has found four active ingredients capable of inhibiting invasive plants from rice husk including Momilactone A, B, E (MA, MB, ME) and 7-ketostigmasterol ( 7KS) . The study is published in MDPI's Plants Science international journal on 7 June. Weed suppression is the new ability of MA, MA compounds in addition to inhibiting diabetes, obesity, and gout, previously published by the team. Quality 7KS also works to protect intestinal cells (Caco-2) and immune system.

Grass cages water areas.(Photo: Planet).

Associate Professor Tran Dang Xuan, Head of the Laboratory of Plant Physiology and Biochemistry (Hiroshima University, Japan) - representative of the research team, said that all four substances in rice husk were isolated and extracted by gas chromatography method. column. Then determine the structure of the compounds by spectral techniques.

After determining the ratio of four compounds in rice husk, the team continued to test their inhibitory ability for the main harmful grass in rice fields around the world as water cages (Echinochloa crus-galli ) and invasive plant goldenrod (Solidago altissima) . The research team also conducted experiments to compare the inhibitory activity of four compounds showed that MA and MB had stronger activity than ME and 7KS.

Golden cage grass and goldenrod tree are one of many harmful and invasive plants that seriously affect rice production as well as environmental threats. Scientists expect to focus on inhibiting weeds and invasive plants of MA, MB, ME and 7KS to develop safer new herbicides and protect the environment.