Abstract: The invention concerns natural or artificial culture supports and preservation media for cut flowers enriched with active substances. Said active substances consist in acylamino acids salified or not by basic amino acids, or by trace minerals, some of which being endowed with antioxidant properties. The invention also concerns culture supports and media for preserving cut flowers enriched with butyric or free caprylic acids, or salified by basic amino acids or by trace elements, as well as by plant extracts, characterized by their antioxidant properties.

Abstract: The invention concerns natural or artificial culture supports and preservation media for cut flowers enriched with active substances. Said active substances consist in acylamino acids salified or not by basic amino acids, or by trace minerals, some of which being endowed with antioxidant properties. The invention also concerns culture supports and media for preserving cut flowers enriched with butyric or free caprylic acids, or salified by basic amino acids or by trace elements, as well as by plant extracts, characterised by their antioxidant properties.

Abstract: This invention concerns making compounds destined for the protection of plants against oxidative stress, characterized by lipo-amino acids enriched with methionine during a process of acylation with hydrolysates of proteins or of amino acids taken individually or combined; or after acylation and lipo-amino acids partially or totally salified by basic amino acids which gives them antioxidant and anti-free radical properties. This invention extends to the total or partial salification of this type of lipo-amino acids with oligoelements.

Abstract: The invention concerns a method for rapidly determining the presence of malondialdehyde (MDA) in urine, food products and cosmetic products. It simply consists in placing a drop of urine, fat or a cosmetic product on an indicator paper impregnated with an aqueous solution comprising thiobarbituric acid and glycolic acid. A red chromogen is obtained resulting from the combination of malondialdehyde with thiobarbituric acid, ill the form of a characteristic ring.

Abstract: The invention relates to new acylamino acids obtained by acylation of hydrolysates of proteins containing, essentially, fibroin and sericin as, for instance, silk.The invention provides also various compositions containing the said acylamino acids, for use in the cosmetic, hygienic, therapeutic and agricultural fields.