Table 1.

The primary ingredients in seabuckthorn freeze-dried powder.

Ingredient	Content
Total polyphenols (mg/g)	6.55 ± 0.29
Total sugar (g/100 g)	22.83 ± 0.44
Total acid (malic acid as a standard) %	14.38 ± 0.62
Soluble solid (°Brix)	62.54 ± 5.30
Soluble dietary fiber (g/100 g)	26.15 ± 0.53
Insoluble dietary fiber (g/100 g)	1.51 ± 0.10
Vitamin C (mg/100 g)	23.24 ± 0.51

Notes: All data are presented as mean ± standard deviation (SD). Total polyphenols content was measured by using the Folin–Ciocalteu colorimetric method. Total sugar was determined by the direct titrimetric method with Fehling’s reagent. Total acid was assayed using the titrimetric method. The content of the soluble solid (°Brix) was determined using the refractometric method by a portable refractometer (BM-FG103; Shanghai BM Optical Instruments Manufacture Company, Ltd., Shanghai, China). The contents of soluble dietary fiber and insoluble dietary fiber were recommended by an enzymatic gravimetric method. Vitamin C content was determined following the Chinese National Standard.