Xanthophyll is one of the carotenoid pigments. The recent researches have found that thexanthophyll has some functions such as protecting eyesight, antioxidation and anticanceration. This paperintroduces xanthophyll about its structure, properties, sources, physiological functions, current research situation and application prospect.

Astaxanthin is an antioxidant and pigment with potential development,widely used in medicine，food and aquaculture etc. This paper introduces the structure, properties, physiological functions,application, producing methods and development prospect of astaxanthin.

This paper gives a quantitative analysis on effect of non-intellectual factors on inquiry study in chemistry by fuzzy synthetic assessment. For typical constructing epistemologists, interest and volition are the most important non-intellectual factors affecting inquiry study in chemistry, and putting hypothesis and collecting evidence are affected most remarkably in all factor of inquiry process. For typical mechanical epistemologists, motivation is the most important non-intellectual factors affecting inquiry study in chemistry, and putting hypothesis and making conclusion are affected most remarkably in all factors of inquiry process. Moreover, some suggestion is given for doing well in inquiry study in chemistry.