A search for resonant absorption of the solar axion by $^{83}rm{Kr}$ nuclei was performed using the proportional counter installed inside the low-background setup at the Baksan Neutrino Observatory. The obtained model independent upper limit on the c
ombination of isoscalar and isovector axion-nucleon couplings $|g_3-g_0|leq 1.69times 10^{-6}$ allowed us to set the new upper limit on the hadronic axion mass of $m_{A}leq 130$ eV (95% C.L.) with the generally accepted values $S$=0.5 and $z$=0.56.
A search for axioelectric absorption of 5.5 MeV solar axions produced in the $p + d rightarrow {^3rm{He}}+gamma~(5.5~ rm{MeV})$ reaction has been performed with a BGO detectors. A model-independent limit on the product of axion-nucleon $g_{AN}^3$ and
axion-electron $g_{Ae}$ coupling constants has been obtained: $| g_{Ae}times g_{AN}^3|< 1.9times 10^{-10}$ for 90% C.L..
A search for axioelectric absorption of solar axions produced in the $ p + d rightarrow {^3rm{He}}+gamma~(5.5~ rm{MeV})$ reactions has been performed with a BGO detector placed in a low-background setup. A model-independent limit on an axion-nucleon
and axion-electron coupling constant has been obtained: $| g_{Ae}times g_{AN}^3|< 1.9times 10^{-10}$ for 90% confidence level. The constrains of the axion-electron coupling have been obtained for hadronic axion with masses in (0.1 - 1) MeV range: $|g_{Ae}| leq (0.96 - 8.2)times 10^{-8}$.
