?? ????? ???????? ??????? ?????? ????? ???????? ???? ??? ??? ?????? ?????? ?????? ??????? ??? ????, ???? ?????? ??????????????? ????? ?????? ?????? ????? ???? ?? ?????? ?? ????????? ???? ???????? ???????? ???? ????? ??????, ?????? ??? ?????? ????????? ?????? ???, ?? ?????? ???????????????? ????? ???????? ???.

???? ?????? ????????????, ??????? E ??? ??????? ??????????????? ??? ?? ??? ?????? ????????? ???? ????? ???????? ??????? ??. ???-????????? ??????? ???? ???, ?? ??? ??? ?????? ?????, ???? ??? ??????? ?????, ??? ??????? ?????????? ????? ??????? ?????? ??????????? ??? ????? ????? ????.

????????? (??????????, CS), β-?????????????????????? ???? ????????, ???? ?????????? ????, ????????? 99~100℃, ????? ???? ????, ???? ?? ?????????? ?????????, ??????? ??????????????. ??? ??????????? ?????????????? ?? ?????? ????? ????? ??????, ?? ????? ??? ??????????? ????????????? ??. ?? ????? ??? ??? ???????????? ??????????? ??????????? ?? ??? ?????? ????? ??????????? ?????? ??.

L cysteine ??????????????????? ??? ???????????? ????? ????? ?????? ???????????. ????? ????? ?? ??? ?? ????, ?????? ?????? ?????? ?????? ???????, L-cysteine ????????, ??????? ???? ???? ?????? ? ????? ?????? ??, ??? ????????? ????? ?????????? ???????? ??.

???????????? ??? ???? ????????? ?????? ????? ???? ???? ????. ???? ?????????, ????? ????? ???.

???????? ??? ?????????????? ?? ??? ?? ???????????? ?????? ????? ????? ?????????????? ???????????. ?? ?????? ?????? ???? ?????? ?????? ?? ?????? ??? ??? ??????? ??????? ? ??.

?????? ????? ??? ?????? ?????? ???? ????? ??????? ????? ??? ????? ?????? ???? ???????, ?? ??????????? ???????? ?? ???????? ?? ???????? ???????? ?????? ??????? ???? ?????.

?????????, ????, ??????? ?? ??????? ?????? ?????? ??? ??? ???????? ???????? ??????, ?? ?????? ???????? ??? ?????? ??. 1970 ???? ?? ????, ?????? ????? ???? ???????? ??? ?????? ??????? ??? ?? ??? ?? "????? ?????? ???????" ??? ????????? ??? ?? ??? ???? ??????? ??? ????? ??????????? ???????? ????.

????????? ??? ????????????? ?? ??? ?? ?????-1, 2-??????????? ?????????? ??????? ?? ???????? ???????? ?? ???????? ???????? ??????? ??. ??? ???? ??????? ???????? ????? ?? ??????? ?? ???, ??? ??????? ??? ????? ?????? ???????? ????? ????, ???? ???? ?? ?? ????????????.