???????????????????? ???? ???????? ??? ???, ?? ??? ????? ????????? ???? ???? ???.??????????? ???? ?? ???????? ??? ???? ????? ???? ???? ???? ??? ????? ???????????. ??? ????????? ??? ??? ???????????? ??? ??? ???? ????? ?????? ?? ??????? ???? ?????? ?????????? ???? ??? ????????? ??. ???? ????????? ?? 28 ℃ ?? ???????????? 28.2g ??. ???? ??????, ??? ?????? ?? pH ??? ????? ?? ??????? ???? ????????? ???????? ??? ?. ???? ????????????????????? ??? ??? 600-800 ?????? ???? ?? ?? ???, ??? ???? ?? ????? ?????? ????????? ??? ????? ?? ???, ?????? ????????????? ??? ??? ????????? ??? ????.?????????????????? ?? ??????? ?????, pH ??? 5?? ?? ??? ?????????????? ???????. ????? ???? ?????? ???? ???????? ??? ?? ?????? ??????? ?????????? ????? ????. ????? ????????? ??? 4?? ??? ???? ???????? ???? ??? ?????? ??????? ?????????? ????? ???? ??? ??? ??????? ????????? ??? ???? ??? ????? ??????.