Antifreeze proteins are biopolymers which are produced by some plants, insects, vertebrates, fungi & bacteria and these help surviving in sub zero temperatures. These proteins inhibit growth  and  recrystallization  of ice crystals  which are fatal for life process. Research in this field is of importance as in the fields of cryosurgery and cryopreservation of  tissues , prevention of ice growth on wind turbines  & on aeroplane wings and to find out better technologies for frozen foods, we need to understand how in nature the antifreeze proteins work and what are their structures and properties. This review paper discusses various progresses in this field in recent times which is aimed to encourage further research in the field of biodegradable antifreeze compounds. In these times of high environmental pollution it is highly relevant to synthesize biopolymers which will not negatively impact the environment but at the same time help solve the problem of saving the life of cells and tissues at sub zero temperatures.

Keywords: Antifreeze Proteins, Biopolymers, Ice Structuring Proteins, Ice Restricting Proteins, Ice Recrystallisation Inhibitors.