4 results about "Petunidin" patented technology

This invention discloses novel petunidin derivatives in black goji berries, as well as methods for extracting and using them. The extract of black goji berries can be separated by chromatography, and the novel petunidin derivatives can be obtained by several preparative separations. This invention further provides the use of novel compounds in the preparation of products for the prevention and / or treatment of inflammation, the use of novel compounds in the preparation of products for the prevention and / or treatment of glucose metabolism disorder-related disorders, and the use of novel compounds in the preparation of products for the prevention and / or treatment of lipid metabolism disorder-related disorders.

The present application belongs to the technical field of pigment preparation, and provides petunidin anthocyanins and blue pigments, and a preparation method and application thereof. The present application extracts anthocyanins from Lycium ruthenicum Murr by alcohol extraction and concentration; removes sugars, proteins and other impurities in the crude extract of Lycium ruthenicum Murr anthocyanins by using a macroporous resin; and then purifies the anthocyanin freeze-dried powder by using a preparative liquid chromatography system, and collects petunidin anthocyanins mainly composed of petunidin-3-O-(trans-p-coumaroyl) rutinoside-5-O-glucoside. The petunidin anthocyanins obtained by the present application are complexed with metal ions, and the blue pigments obtained have good color and stability. Compared with the prior art technical solution of adding polysaccharides to improve the stability of natural blue pigments, the petunidin anthocyanins of the present application can also ensure the stability of the blue pigments without adding polysaccharides, and at the same time, will not reduce the color value of the blue pigments.

The application discloses a composition for enhancing the immunity of pets and a preparation method thereof, and comprises the following raw materials in parts by weight: 25-40 parts of Echinacea purpurea powder, 5-8 parts of petunidin-3-trans-p-coumaroylerianoside-5-glucoside monomer, 35-55 parts of willow bark extract, and 60-80 parts of a carrier. The composition of the application effectively improves the immunity of pets, increases the weight of pets, and promotes the growth of pets by compounding the Echinacea purpurea powder, the petunidin-3-trans-p-coumaroylerianoside-5-glucoside monomer and the willow bark extract, and synergistic effect. Meanwhile, the beef extract as the carrier also has the effects of supplementing nutrition and enhancing constitution, and can enhance the effect of the composition of the application to a certain extent.

The application discloses a blackberry RubHLH gene, an expression protein thereof and application, and relates to the technical field of plant genetic engineering.The blackberry RubHLH gene disclosed by the application has a nucleotide sequence as shown in SEQ ID NO.1, and the amino acid sequence of the expression protein thereof is as shown in SEQ ID NO.2.The application constructs an expression vector of the blackberry RubHLH gene, transforms the expression vector into tomatoes, and cultivates, screens and obtains transgenic tomato plants with significantly reduced anthocyanin substances.The RubHLH gene disclosed by the application inhibits the synthesis of anthocyanin substances such as pelargonidin, proanthocyanidin, naringenin, kaempferol-3-O-rutinoside, delphinidin-3-O-rhamnoside and petunidin-3-O-acetylglucoside.The leaf of the transgenic strain is larger, darker, wrinkled and has a shape significantly different from that of CK;the number of seeds of the fruit is reduced, and the fruit matures in advance.