Table 2.

Classification of lyoprotectants.

1. Carbohydrate		2. Protein [39]	3. Polyol [39]
1.1. Mono and disaccharides [39,41]	1.2. Oligo and polysaccharides [39]	Glycine	Mannitol
Glucose (dextrose)	Raffinose	Gelatin	Sorbitol
Fructose	Hydroxypropyl-β-cyclodextrin (HP-β-CD)	Proline	Glycerol
Mannose	Chitosan	Glutamine	Ethylene glycol
Maltose	Maltodextrin	Betaine	Propylene glycol
Sucrose	Inulin	Arginine	Polyvinyl alcohol
Trehalose	Dextran	Lysine
Cellobiose	Hyaluronan	Histidine
Lactose