Fibre contents of 29 samples of grain, fruits, vegetables and feed were analysed by the AACC method i.e. insoluble dietary fibre method (hereinafter referred to as the new method) with Tecator's fibre analyser and comparison was made with the crude fibre determining method (hereinafter referred to as the old method)advanced by Helnneberg, et al in 1860.The results showed that the fibre contents in 11 samples of grain, 6 of stalks and 12 of fruits and vegetables determined by the old method were only 9.41-34.63, 44.46-74.30 and 53.62-85.29% of that by the new method respectively. So the new method may be appropriate to determine the fibre contents in grain and food.

The fruit of hippophae rhamnoides is ball in shape with a diameter of 0.5 cm. It is red or yellow in colour and lustred on the pericarp.The pericarp, juice and seeds of the fruit account for 7.9%, 81.9% and 10.2% separately.The juice contains many kinds of organic acids 3.9% in total (caculated as citric acid), which include 1.97% of malic acid, 0.69% of tartaric acid, 0.45% of citric acid, 0.32% of ascorbic acid, 0.28% of succinic acid and 0.18% of oxalic acid. In addition, it also contains 0.9% of crude protein and eight kinds of essential amino acid necessary to the human body, as well as extremely plentiful vitamin such as VB2, VC, VE and carotene etc.The pericarp can be used to extract pigment. The seeds contain 9.02% of oil in which the saturated and non-saturated fatty acids are in the ratio of 1 to 5.2, and the seed residue after oil extracting still holds 26.06% of crude protein. The oil also contains as much as 350.8mg/kg of vitamin E.