Sporoderm-removed Ganoderma lucidum spore powder, granule and preparation method thereof

A method for preparing a powder of sporoderm-removed Ganoderma lucidum spore, comprising the steps of:

• (1) soaking a powder of sporoderm-disrupted Ganoderma lucidum spore, and performing water extraction to obtain an aqueous extract solution of sporoderm-disrupted Ganoderma lucidumspore, wherein a sporoderm of sporoderm-disrupted Ganoderma lucidum spore is removed after performing the water extraction;
• (2) concentrating the aqueous extract solution obtained in step (1) to obtain a concentrated solution;
• (3) drying the concentrated solution to obtain a dry extract;
• and
• (4) pulverizing and then sieving the dry extract to obtain the powder of sporoderm-removed Ganoderma lucidum spore;
• wherein
• a content of polysaccharides in the powder of sporoderm-removed Ganoderma lucidum spore is 10-20 g/100 g, and a content of total triterpenes in the powder of sporoderm-removed Ganoderma lucidum spore is 4-10 g/100 g,
• wherein the water extraction in step (1) is performed 2-3 times, a water extraction temperature is 80-120° C., and a time period of the water extraction is 4-6 h;
• wherein the water extraction in step (1) comprises:
• firstly mixing 4-6 parts by weight of the powder of sporoderm-disrupted Ganoderma lucidum spore with 12 parts by weight of water for 1 time to form a first solution, and filtering the first solution to obtain a first extract solution and a first filtered residue;
• decocting the first filtered residue with 10 parts by weight of water for 1-2 times to form a second solution, and filtering the second solution to obtain a second extract solution and a second filtered residue;
• and combining the first extract solution and the second extract solution to obtain the aqueous extract solution, and
• wherein filtering the first solution comprises a step of first centrifugation to separate the first filtered residue from the first extract solution, and filtering the second solution comprises a step of second centrifugation to separate the second filtered residue from the second extract solution.