BETA-GLUCAN

Description

Laminarin mainly includes brown algae (such as sodium alginate, also known as alginate, the content in kelp is about 19.7%), fucoidan (also known as laminarin, seaweed sulfate polysaccharide, fucoidan, the content in kelp is about 1%), Fucoidan (also known as fucoidan, the main component is fucoidan, also known as fucoidan) and other 3 types, consisting of β(1-3)-glucan and some β(1-6)- Composed of glycosidic bonds, it is a kind of neutral glucan, widely present in brown algae, and also the main chemical component in kelp of the family Pterophyceaceae or kelp of the kelp family. It has the functions of regulating immunity, anti-tumor, anti-coagulation, regulating blood lipids. , hypoglycemic, anti-radiation, antioxidant, antibacterial, antiviral and other pharmacological effects, but also has various effects such as lowering blood pressure, fatigue resistance, anti-pulmonary fibrosis, regulating tyrosine kinase activity, and anti-mutation.

Chemical properties

laminarinase substrate

Physical properties

The dry crude polysaccharide product is a yellow-brown lumpy solid with a fishy smell of sea. Decolorized by H2O2 and freeze-dried to obtain a white fibrous solid, soluble in water, easily soluble in hot water, insoluble in acid and alkali, insoluble in high-concentration ethanol, methanol, acetone and other organic solvents, non-volatile, pH 6.5 , the specific rotation is [α]D20=-1.25°(c=0.80, H2O).

Occurrence

Kombu, also known as kelp, seaweed, sea kelp, sea cabbage. Extracted from the thallus of Laminaria japonica Aresch. and Ecklonia kurome Okam.

The Uses of BETA-GLUCAN

Laminarin is a storage glucan and is now used to study it?s interaction with laminarinase as its substrate.

What are the applications of Application

Laminarin is a storage glucan and substrate for laminarinase

Definition

Laminarin obtained from Laminaria digitata. It is a .beta.-(1-3)-linked D-glucan with .BETA.-(1-6) linkages. The major M-series contains 20-30 glucosyl residues linked to terminal mannitol, and a minor G-series with 22-28 glucosyl residues. There is a 3 to 1 ratio of M-series to G-series molecules. There is an average of 1.3 branches per molecule.

General Description

The fronds of Laminaria and Saccharina species contain laminarin, a low molecular weight storage glucan. It is localized to the vacuoles. Laminarin structure contains β-(1,6)-intrachain linked (1,3)-β-d-glucan.

Biochem/physiol Actions

Laminarin is a polysaccharide of glucose found in brown algae and utilized as a food reserve.