Abstract: The invention belongs to the field of biomedicine technology, and discloses a plant oil ceramide, which is obtained by reacting a plant oil fatty acid with a sphingoid base compound, wherein the sphingoid base compound is selected from sphingosine, phytosphingosine, and dihydrosphingosine, and the plant oil fatty acid is selected from olive oil fatty acid, camellia oil fatty acid, sea buckthorn oil fatty acid, grape seed oil fatty acid, nut oil fatty acid, borage oil fatty acid, rosehip oil fatty acid, soybean oil fatty acid, rice bran oil fatty acid and the like. This invention also discloses a synthesis method and use of plant oil ceramide. Said plant oil ceramide exhibits outstanding performance in skin's natural barrier repair, anti-inflammatory activity, tissue healing, anti-aging effects, and more, with broad application prospects in cosmetics, health supplements, and biopharmaceuticals.

Abstract: The present disclosure belongs to the technical field of biological medicines. Disclosed is a novel ceramide which has a structure represented as formula I Further disclosed in the present disclosure are a preparation method for and the use of the ceramide. The present disclosure uses naturally-sourced and readily-available 10-hydroxycarboxylic acid as a starting raw material to construct the ceramide having a novel structure. The preparation method has a simple and convenient synthetic route and is suitable for large-scale production. Meanwhile, the obtained ceramide shows more excellent effects in the aspects of tissue repair, anti-inflammatory repair, tissue healing, moisturizing and anti-aging, and thus can be used in the fields of health care products, cosmetics and drugs.

Abstract: The present invention provides A ceramide compound, comprising: a structure of general formula I or an enantiomer or diastereomer of general formula I: in which: R1 is selected from the condensation residues of ferulic acid, sinapic acid, abscisic acid, sotretinoin, tretinoin, fusidic acid, royal jelly acid, sorbic acid, caffeic acid or trans-cinnamic acid; R2 is selected from one of the following structures:—C15H29, —C15H31, —C15H27, —CHOHC14H27, —CHOHC14H29. The present disclosure also provides a ceramide compound containing conjugated carboxylic acid, preparation method therefor and application thereof. The invention reacts functional carboxylic acid with sphingosine base to obtain a class of ceramide compound with novel structure. The introduction of physiologically active molecular fragments of functional carboxylic acids into ceramides will enhance the original efficacy of this type of molecules and also improve the physical and chemical properties of ceramide compound.

Abstract: The inventors have identified amylases in fungal strains of Valsaria and found that the amylase can increase the shelf life of baked products. Particularly, the novel amylase in combination with a maltogenic amylase further improves the softness of bread crumb without having detrimental effects on elasticity.