Analysis Of Main Bioactive Substances In Backtra In Camel Milk Of Gansu Province

In order to reveal the special characteristics and potentially medical usefulness of backtrain camel milk, milk samples from backtrain camel, cow, ewe and women were used to analyze their contents of fatty acids, cholesterols, mineral elements, vitamin C by use of the methods of GC, FASS and HPLC, and also to compare with component differences of these materials in the milk between backtrain camel and the other subjects mentioned above. The following results were obtained.The middle- and long-chain fatty acids were predominant fatty acids in backtrain camel milk. There were different kinds of fatty acids in the milks from different subjects, of which ewe and backtrain camel occupied much more kinds of fatty acids. The percentage of the same fatty acid in different kinds of milk varied significantly. As far as Linolenic acid (C_18:2) was concerned, human milk occupied the highest level of all, ewe took the second, and backtrain camel came the last, ranging from 0.05% to16.17%. Human milk also occupied the highest level in Eicosanotic acid (C_20:4), and then the backtrain camel milk and thereafter ewe milk, with an range of 0.33% to 2.51%. In term of Linolenic acid (C_18:3), backtrain camel milk had a highest level, followed by ewe milk, and an undetectable level existed in human milk and cow milk. Backtrain camel milk also had the highest level in Palmitoletic acid (C_16:2), followed by cow milk, and an undetectable one in human milk. In terms of Palmitic acid (C_16:1), cow milk occupied the highest level, ewe milk took the second and human milk came the last, ranging from 17.23%to 34.11%; while for Oleic acid (C_18:1) ewe milk ran first, cow milk followed and human milk came last, ranging from 20.81% to 25.01%.The contents of K,Ca,Na,Mg,Zn,Fe,Cu were identified to vary also significantly in different kinds of milk. The highest level of Ca, Na and Fe were observed in backtrain camel milk(39.67μg/L～60.75μg/L,145.60μg/L～631.88μg/L and5.82μg/L～43.50μg/L,respectively),and K,Mg and Zn in ewe milk (401.25μg/L～ 1464.17μg/L,28.43μg/L～99.54μg/L and 1.56μg/L～1.63μg/L, respectively),and Cu in human milk (0.54μg/L～1.46μg/L).A significant difference also existed in vitamin C within the milk from backtrain camel, cow, ewe and women. The backtrain camel milk occupied the highest level, human milk took the second, and cow milk came the last, with a rang of between 0.99 mg/mL to 2.98 mg/mL. The same was true in cholesterol that cow milk occupied the highest level, ewe milk took the second, and human milk came the last, ranging from 0.15mg/mL to 3.29 mg/mL.