STUDIES ON THE CAROTENE CONTENT IN PLANT MATERIALS, METHODS OF PREPARATION AND STORAGE OF CAROTENE CONCENTRATES
- VernacularTitle:植物中胡蘿蔔素含量及其浓缩与储藏的研究
- Author:
Chong-Guang TAI
;
Jian-Xin LI
;
Xiang-Chuan HOU
;
- Publication Type:Journal Article
- From:
Acta Nutrimenta Sinica
1956;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
The carotene content of 63 kinds of plant materials including vegetables, grasses, wild plants and tree leaves were determined by the column chromatography method. Alfalfa, shepherd purse and carrot had the highest carotene content among the tested plants.Four methods were tried for the preparation of carotene concentrates. It was found that percolation with ethyl ether after grinding in ethanol showed the highest yield at low cost.The carotene content of the above mentioned concentrates was almost completely destroyed after 4 months when stored at room temperature and exposed to light. There was appreciable loss of the vitamin after 5 months' storage in the dark at low temperature (below 6℃), however, the loss was much smaller than that stored at room temperature. The loss of carotene was greatly reduced when the carotene concentrates were stored under nitrogen either at low temperature or at room temperature compared with those stored in the air. The addition of heated soy-bean meal to the carotene concentrate also considerably reduced the carotene loss during storage at room temperature.
