????? ??????????, ?? ????? ?????????? ????? ??????, ??? ???????????? ?????? ?? ??????? ??? ????? ??????????????? ?????? ?? ????? ???? ????? ????? ??? ??????? ??????, ???????? ?????? ????????? ???? ????, ???????? ??????? ??????? ???????, ??? ????? ??? ???????? ??? ???????, ??????, ??? ??? ??????????? ???? ?????????? ?????? ????? ??? ???? ??????? ????? ??????? ?????? ????? (???? ?????????, ????, ???, ???????) ??? ????? ????? (???? ??????? ?????, ?????? ?????) ? ??????, ?????? ????? ????? ????? ??????? ???? ???????????? ???, ?????? ????? ???????????? ?????????? 6 ?? ?????? ??? ??? ???? ????:

?) ????? ????? ?????? (?????????): ??????, ????? ??????, ???????? ????????????, ???????? ????????????, ?-??????????-?-????? ????????????, ??? (?-??????-?-?????) ??????????, ?????? ????????????????? (??????), ???????;

?) ????? ??????: ???????? ????????? (MSG), ???????? ?????? (IMP), ???????? ??????????? (GMP), ???????? ?????? + ???????? ??????????? (I+ G), ??????????? ????????? (MSS), ?????????? ????????? (DSS), ???????;

?) ????????? ????????? ??? ??? ????? ????? ?????: ???? ????? ???, ????? ????? ??? ???? ????? ????????? ???, ??? ?? ????? ?????;

?) ???????? ??????????? ?????? ????: ???? ??????????? ?? ????? ??? ??? ???? ??????? ?????????? ????????? ??????????? ?????? ????????;

?) ???????? ????????? ????? ??? ????: ???? ???? ?????? ?????? ???? ??????? ???????? ???? ??? ?????? ????? ??? ???, ??? ???????? ?????? ?????? ???? ??????? ????? ??? ???? ?????? ????? ??? ????

?????? ????? ??????????? ?????????? ????????? ??????:

?) ?????? ??, ?????? ??????? ?????? ???????????;

?) ?????? ????? ????? ?????? ???????? ???? ???? ??, ??? ??? ???????? ?????? ???????? ??? ??? ??? ???????? ???? ??, ??? ??? ??????? ????????????? ??????????? ???????? ???? ????, ??????, ??????? ????????? ???????? ?????????? ????????? ????, ????????? ???????? ??????????? ????? ??? ????? ???? ??? ?????? ?????? ????????? ????????? ???? ????;

?) ???????? ??????????? ???????? ?????? ?????? ??? ???? ?????? ??????????????? ?????? ??? ??????? ???????? ?????? ?????? ???, ??? ??? ????;

?) ???? ??????? ?????? ???? ??????? ??????? ???? ??, ??? ???? ???? ???????? ??????? ????, ?? ???????? ???????, ???, ?????? ??? ????? ?????? ??? ????? ???? ???? ???? ????;

?) ???? ????? ????? ???????? ????? ????? ??? ???? ??? ????????????? ???????????? ???????? ???????? ???? ????????? ??? ???????? ??????? ?????? ???? ???? ????, ???? ???????, ?????? ???????;

?) ??????? ??? ??????? ?????? ?????? ????? ???? ??????? ?????? ???? ??????? ??????? ???? ??????? ???????? ??????? ??? ???? ?????? ????? ??, ???? ??????, ????? ?????? ???????, ???? ???? ???? ???????? ??????? ??????? ???? ????????? ???? ???? ????, ???? ???????? ??????????, ?????? ???????;

?) ?????? ?????????? ????? ??????????? ???????? ?????, ????? ???????? ?????? ??????? ??? ????

??????? ?????? ????? ??????????? ????????

A, ????? ??????? ?????? ??????

(?) ?????? ??? ????? ?????? ????? ??????? ??????? ????? ????? ??????? ???? ?????? ??????? GC/MS ????????? ???? ???? ?? ?????? ??????? ???? ??????????? ???? ???? ?? ????? ?????? ??? ??? ??????, 1% ???? 20% ??????? ??? ??? ?????? (????? ?????? ????? ???????? ?????? ?????? ??????, ?????? ??? ?????)? ?????? (??????, ??????), ??????????? ????????? ???, ?????????, ???????, ????????? ??? 2-?????????????????? ???????, ????? ????? ????? ??? ???? ????? ???????????, ???? ????????? ??????? ??? ???, ????????, 93 ℃ ??????????? ???????? ????????? ???????? ???? ????, ???? ????, ???????? ?????? ????? ??? ?????? (????2?????), ????????????? 2-????? ???????????? ??????? ???? ??????, ?? ???????????? ????????? ??? ???? ?????? ??????, ??? ??? ?????? ????? ??? ???? ????? ?????? ?????? ???? ????? ??????? ????? ?????? ????????, ????? ??? ????????? ??????? (PG) ??????? ???? ???? ?????????? 4 ?? ??????? ????? ?????? ?????? ????: 1) ????????? ???? ???????????? ???? ??? ????? ??????? ???? ??????? ??? ???, ??? ????? ????? ??????? ??? ??????? ????; 2) ????????? ???????????, ?????? ??????? ?????? ???, ??? ???????? ???????????, ???? ???????????? ??????? ???????????? ????? ?????? ????? ????; 3) ????? ???????? ?????? ??????? ?????? ???????? ??????? ?????? 3-8 ??? ????, ??? ???????????? ??????? ???? ???? ??? ????? ???? ????; 4) I + G, MSG, MCP ??? ???????? ?????????? ???????? ???? ??????? ??? ???, ??? ?????? ??????? ?????

(?) MCPMCP, ?? 3-??????-1, 2-????????????????? ?? 3-??????-2-??????????-2-?????????????-1-????? ????? ??????, ??? ???? ???? ?? ????? ???? ?????? ?????? ??? ??????? ??? ??????? ??? ?????? ??????, ???? ????????? ??????? ??? ???? ???? ?????? ?????? ?? ???????? ?????? ??? ??????? MCP-?? ??????? ????????? ????? ??? ????? ??????? ????, ??? ????? ??? ???? ????? ???? ???? ???? ?????????? ???????? ???????????, MCP ?????? ????? ??? ???????? ??????????? ???????? ???? ????????? ??? ???? ????? ?????? ????? ???? ?????

(?) ???????? ????????????, ?? ??? ???????????? ????? ??????, ?-??????? ??????????????????? ???? ??????, ?? ???? ??? ????????? ?????? ???? ???? ??? ??? ??? ??????? ??? ???, ??? ??? ??? ??? ?????? ???? ????? ???? ??? ???????? ?????? ???????? ?% ???????? ???????????? ?????????? ????, ????? ?????? (??????? ???? ?????? ???) ????? ????? ???? ??? ???? ????? ???? ??? ???? ?????? ??????? GC/MS ????????? ???? ??????? ???????? ?????????????? ???????? ?????? ??? ?????? ??? ???? ??????????? ???????? ?????????????? ?????? ??????? ????? ??? ???? ??????? ??? ???? ??????? ???????? ?????? ????????, ???????? ?????????????? ?% ?? ???????? ??????? ??? ??? ??? ????? ???? ??????? ?????? ?????? ??? ??? ????

(?) ???????; ???????) ????????? ??? ?, ?-?????????-?-??????????-? (????) -???????, ???? ????? ?????, ????? ??????????, ???????????? ???? ?? ????? ?????? ????, ??? ???? ????? ??? ???? ?????? ?????? ?????? ???, ??? ????? ?????????? ??? ???? ????????? ???? ????????? ?????, ?????????? ??? ?????? ??????, ?? ????? ?????? ?????? ??????? ?????? ??? ???, ?????? ??????, ?????? ?????? ??, ???????? ??? ??????? ??? ???? ??? ????? ???? ??? ????????? ??????? ????? ??? ???? ????? ??? ???? ????????? ?? ??? ????? ???????? ?.? ???? ? ??? ??? ??????? ?? ???? ?? ??? ?????? ?????? ??? ????????? ???? ?????????? ???????? ???? ?????? ??????? ????/???? ?????????, ????????? ???????? ?????? ??? ??????? ??? ?? ?????? ????? ???????? ?% ??????? ??? ????? ????????, ??????? ?? ?????? ??????? ???? ????? ????????? ???, ?? ????????, ???????, ???????????? ??????? ??? ???????? ???????? ???? ????????? ??? ?????? ??????? ?????? ???? ???? ???? ??? ??? ???? ??????? ?????????? ??????? ???? ???? ????? ??? ?????-?? ?????? ???????, ?????? ??????? ??????? ??? ???? ???????? ??????? ??????? ??? ???????? ?????? ???? ???? ??? ????????? ????? ?????? ???? ????? ???? ?????? ??????? ??????? ??? ???? ????? ??? ????? ??????????????? ?????? ???? ???? ??? ??????? ?????? ??? ????? ??????????????? ?????? ????, ?? ?????? ??????? ??? ????, ??? ??? ????? ??? ????? ???????, (I + G) ??? MSG ????????? ?????????? ????? 1 ? ?????? ???????

(?) ??????????? ?????? ?????????? ??? ????????? ?????? ?? ???????? ????? ?????????? ??: 2-??????-3-????? ????????????, ??? (2-??????-3-?????) ??????????, 2-??????-3-??????-????????????, 2-??????-3-?????????????????? ????????????, ???????? ?? ?????????? ???????????? ???? ??? ????? ?????? ????? ??????, ??? ???? ??????? ?????, ????? ??? ?? ??????? ??????? ??? ???? ?????

???, ????? ?????? ?????

(?) MSGMSG ?? MSG, ?? L-glutamate ????????, ???????? ????????? ????? ??????? MSG ???? ???????, ?????, ?????? ??? ????? ??????? ????, ??? ??????? ???? 0.014%? MSG ??????? ?????? ??????? ??? ???? ??????? ??? ??? ??? ????? ??? ???????? ?????? ???????? ???? ????????? ??????? ?????? ???? ????? ????????????? ???????, ??? ?????? ?????? ????? ????? ????????? ???, ??? ????? ????? ??? ??? ????? ??? ?????

MSG-?? IMP, GMP ??? (I + G) ?? ???? ??????????? ?????? ??????? (MSG + IMP) 0.05 g/L ?? ??????, ??? MSG∶IMP = 1∶1 ???, ??? ????? ???????? ????????? ?????; MSG ??? IMP-?? ???????, IMP-?? ?? ??????? ????? ???? 50% ?????? ???? ??? ?????? ??????? ????? ??????????? ????? ?????? ????? IMP-?? ?? ??????? 50% ???? 100% ?????? ???? ??? ????? ??????????? ????? ?????? ??????? ????? ?????

MSG ???????? (I + G) ?? ???? ??????? ??? ????????? MSG ???? ??? ???, 99% MSG+ 1% (I + G) 2 ??? ?????? ??? ???? ????, 98% MSG+ 2% (I + G) 3.5 ??? ?????? ??? ???? ????; 96% MSG+ 4% (I + G) 5 ??? ?????? ??? ???? ????? ?????? ????? ????????, MSG ???????? (I + G) ?? ???? ????????? ??????? ??? ??? ????????? ????????? ????? 1 ? ?????? ???????

(?) IMP, GMP ??? (I + G) IMP ??? GMP ???? ????, ???????? ???? ??? ?????? ??? ??????? ??? ????-?????? ???? ??? ???????, ??, ???? ???????? ???? ??? ??????? ????? ??? ????????? ?????? ?????? ??????? ????????? IMP ??? GMP-?? ???? ????????? ????? ????? ?????? ??? GMP-?? ????? ??????? IMP-?? ??????? ?????? 3 ??? ???? ??? ????? ?????? ??????? ????????????? ??????? ??? (??????, I + G, IMP ??? GMP ???????? 50%)? MSG, IMP, GMP, (I + G) ?????? ??????? ??? ?????, ??????, ?????? ?????, ?????????? ??? ???? ????? ????? ??? ????? ???? ?????

(?) MSS ??? DSSMSS, DSS ??????? ????? ??? ????? ???????? ????? ??????, ??? ??? ????????????? ???????? ????? ??????, ?????? (???? ??????? ????, ?????, ?????, ????????, ?????????, ??????? ???????) ?????? ?????? ??????, ????????? ??????? ????? ?????????? ?????? ??????? ??? ???? ????? ??????? MSG ?? ???? ??????????? ?????? ???????

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

??????? ???? ??????? ????????? ??? ?? ????? ???? ???? ?? ???? ????? ??????? ?????? ??? ??, ????????? ?????? ???? ????? ??????????? (???? ???????????????, ???????, ???????????????, ????????, ?-??????????????, ???????), ??? ??????? ???? (????, ??????, ???????) ??? ?????? ???? ????? ???????? ??????? ?????? ????? ???, ??? ????? ???, ?? ??????? ?????? ??? ?????? ???? ????? ????? ?? ????? ?????? ?????????????, ?????????, ???????????, ?????, ???????, ?????, ????, ????????, ????????, ??????, ????????, ????????, ????????, ????????, ??????, ???????????? ??? ??????? ??? ???????? ???? ??????? ????? ??????? ??????? ?????-?? ??? ???? ????????? ????? ????? ?????? ????? ??? ??????? ?????? ???? ??? ???? ????? ?????? ????? ??? ??? ???? ???, ????? ?????? ????? ??? ????????? ??? ????????, ???????? ??? ???? ??? ????? ???? ??????? ???? ????, ?? ??????? ?????? ??? ???????? ???????? ????? ???? ????????????? ?????? ??????? ??? ?? ????? ????, ????? ???????? ???? ???????? ????? ??? ??? ??? ???, ?? ?????? ???????? ????? ????? ???? ????????? ????? ??? ????????? ????????, ????? ????? ?????? ??????? ??? ???? ????? ??? ????????? ????? ????? ?????? ?????? ????????? ?? ??? ?? ?????? ?????? ???, ??? ??? ??????? ?????? ?????? ??? ???? ?????

???????, ????? ?????????? ????? ???? ??????? ?????????

?? ????? ?????????? ??? ???? ???????? ???? ????, ????????????: ?) VB1 → bis (2-??????-3-????????) ??????????; ?) α-??????????? ????? + (NH4) 2S →H2S, ???????; ?) ??????????? + (NH4) 2S →H2S, ???????; ?) ??????? ??? ????? ???????? ???? + (NH4) 2S →H2S, ????????

?????? ??????? ??? ????? ??? ?? ?????, ??????? ??? ??????? ????? ???? ????, ?????? ????? ?????????? ??? ??? ????????? ???, ??????? ????? ?????????? ?????? ?????? ??????? ??? ???? ??, ??????????, MSG, (I + G), ???????, ?????? ??? ????? ?????? ??????? ????? ?????? ??????? ???? ???????, MSS, DSS ????????? ??????? ??????? ????, ????? ??? ???????? ????, ???? ????, ?????, ????? ??? ???????? ????? ??????? ???? ????????