Non-biological turbidity and precipitate easily occurred in yellow rice wine on shelf.The mechanism of precipitate formation mainly covered protein precipitate,iron precipitate and oxidation precipitate.The substance involved in precipitation mainly included tannin,polysaccharide,protein,polyphenol and metal ions such as Fe,Al,Mg and Ca etc.The methods to settle the problem of precipitate in yellow rice wine were summed up as follows:① filtration treatment including membrane filtration,micro-filtrating and ...