Determination of Carotenoids from Green Husk of Juglans regia L by Spectrophotometry

Using green husk of Juglans regia L as raw material,extraction to obtain the terpenoids and analysis of content of carotenoid in the normal temperature and freezing storage by photometer were performed.The results showed that under normal temperature and freezing storage the contents of carotenoid of green husk of Juglans regia L varied greatly,0.06%and 0.14%respectively.The freezing storage is more conducive to the preservation of carotenoids in green husk of Juglans regia L.