Stability and changes in astaxanthin ester composition from Haematococcus pluvialis during storage

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	Stability and changes in astaxanthin ester composition from Haematococcus pluvialis during storage
	Zuo Jincheng; Li Yeguang; Miao Fengping; Geng Yahong; Lu Dayan
刊名	CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
	2013
英文摘要	In this paper, we investigated the effects of temperature, oxygen, antioxidants, and corn germ oil on the stability of astaxanthin from Haematococcus pluvialis under different storage conditions, and changes in the composition of astaxanthin esters during storage using high performance liquid chromatography and spectrophotometry. Oxygen and high temperatures (22-25 degrees C) significantly reduced the stability of astaxanthin esters. Corn germ oil and antioxidants (ascorbic acid and vitamin E) failed to protect astaxanthin from oxidation, and actually significantly increased the instability of astaxanthin. A change in the relative composition of astaxanthin esters was observed after 96 weeks of long-term storage. During storage, the relative amounts of free astaxanthin and astaxanthin monoesters declined, while the relative amount of astaxanthin diesters increased. Thus, the ratio of astaxanthin diester to monoester increased, and this ratio could be used to indicate if astaxanthin esters have been properly preserved. If the ratio is greater than 0.2, it suggests that the decrease in astaxanthin content could be higher than 20%. Our results show that storing algal powder from H. pluvialis or other natural astaxanthin products under vacuum and in the dark below 4 degrees C is the most economical and applicable storage method for the large-scale production of astaxanthin from H. pluvialis. This storage method can produce an astaxanthin preservation rate of at least 80% after 96 weeks of storage.
内容类型	期刊论文
源URL	[http://202.127.146.157/handle/2RYDP1HH/541]
专题	中国科学院武汉植物园
推荐引用方式 GB/T 7714	Zuo Jincheng,Li Yeguang,Miao Fengping,et al. Stability and changes in astaxanthin ester composition from Haematococcus pluvialis during storage[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2013.
APA	Zuo Jincheng,Li Yeguang,Miao Fengping,Geng Yahong,&Lu Dayan.(2013).Stability and changes in astaxanthin ester composition from Haematococcus pluvialis during storage.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY.
MLA	Zuo Jincheng,et al."Stability and changes in astaxanthin ester composition from Haematococcus pluvialis during storage".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY (2013).