As a natural yellow pigment,lutein is widely used in the human food and forage.A lot of wastewater is generated in this industry.It is urgent to deal with fermentative marigold wstewater for lutein industry.How to process the wastewatwer is more important.Centre on the process of fermentative marigold wstewater,used by polyaluminium chloride to flocculate,active carbon to bleach,then evaporating in the vacuum state and getting lactic acid finally.
Ginger oleoresin is to present the main substance of ginger spicy flavor and aroma from the ginger extract.How to extract a high concentration of ginger oleoresin from ginger ginger is an important research direction.In this paper, different ginger oleoresin extraction process gives a brief introduction and comparison;Finally the application of ginger oleoresin in food and medicine are introduced in the paper.
