Studies On Procyanidins Content Of Differet Provenance Lycium Ruthenicum

In recent years,Lycium ruthenicum procyanidins has strong antioxidant activity and solubility in water.How much its content become the important index of Lycium ruthenicum quality evaluation.In order to better development and utilization of Lycium ruthenicum resources,promote the development of industrialization,Papers selected artificial planting Lycium ruthenicum in Alxa Leauge as the research sample,determination of Lycium ruthenicum procyanidins content under different impact factor.(1)The natural distribution of Lycium ruthenicum in Alxa Leauge,the average plant height is 60cm.3 to 7 peanuts on short branches,corolla funnel shaped,fruit is flat and round two forms,ranging from 5 to 15 mm diameter,color is a deep purple.From germination to fruit ripe experience about 160-180 days,growing period of about 180-190 days.Flowering can be divided into 3 stage,flowering in the middle of the end of June,July,August,Fruit ripe period for the end of July,at the end of August,in mid-September.(2)Based on provenance test and observation,morphological characteristics of different provenance has obvious difference,can be taken as the basis for provenance identification.The longest lateral branch of Inner Mongolia,Qinghai entire carpophore is longest.Fruit shape Xinjiang and Gansu province to delete,transverse and longitudinal than 3:1,Inner Mongolia and Qinghai as around ball,transverse and longitudinal than 1:1.Uniformity is highest fruit color and luster is the best in Qinghai and Xinjiang,Inner Mongolia and Xinjiang the taste is sweet,another is acid.(3)Procyanidins content of Lycium ruthenicum in Alxa Leauge according to the size of Inner Mongolia 9.40mg/g,Qinghai 8.37mg/g,Gansu 7.35 mg/g,Xinjiang 6.69mg/g,and there was no significant difference of the two.(4)Fruit procyanidins as judgment,four provenance in the harvest period,Qinghai suitable picking time in the middle of August to early October,in the middle of the end of July to September in Gansu,Xinjiang as the middle of August and September,Inner Mongolia is in the middle of August and September.In the experiment,Ejina where it is more suitable for planting Lycium ruthenicum.of area.(5)Fresh fruit after dry processing,procyanidins content is lower,reduce the amplitude of the smallest for ventilation air,-dried,10.9%,dried by 68.9%,under 40?content was the highest in the drying process,2.1 mg/g,under 100? is the lowest,is 0.25 mg/g,there is no significant difference between 60 and 80?,is 1.43 mg/g and 1.15 mg/g.