D-malic acid: malic acid like: white or colorless powder. Refractory in water. Not melt in ethanol. Usage: buffers, flavoring agents, curing agents. Limited: for jams and fruit jellies, marmalades. Can be used for milk drinks. Content: 97.5% L-malic acid use in food, medicine, daily chemical sector are as follows: (1) Food industry: used as processing and configuration drinks, wine, juice, also used in the manufacture of candy, jam, Food and antibacterial antiseptic effect. Yoghurt fermentation pH adjustment can also be used in wine-making, in addition to the tartrate. (2) the tobacco industry: malic acid derivatives such as esters can improve the tobacco flavor. (3) pharmaceutical industry: a variety of tablets, syrup together with malic acid can be in the form of fruit flavor, and contribute to the in vivo absorption, diffusion. (4) Daily Chemical Industry: good complexing agent, esters agent used in toothpaste formulations, net of dental film with synthetic fragrance formula can also be used as a deodorant and detergent ingredients.