BIONATURE

ULTRAVIOLET AND VISIBLE ABSORPTION SPECTROSCOPIC STUDIES IN THE RANGE 190-700 nm: THE IMPACT OF DIET IN PERTURBING THE HUMAN PSYSIOLOGY

HARISH KUMAR GUPTA *

Medical Physics Research Laboratory, Department of Physics & Astrophysics, University of Delhi, Delhi – 110007, India

M. M. BAJAJ *

Medical Physics Research Laboratory, Department of Physics & Astrophysics, University of Delhi, Delhi – 110007, India

PAWAN KUMAR *

1. Medical Physics Research Laboratory 2. Department of Physics & Astrophysics, University of Delhi, Delhi – 110007, IndiaDepartment of Physics, DJ post-graduate College (under C. C. S. University), Baraut, U. P., India

*Author to whom correspondence should be addressed.

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Abstract

We have carried out the UV and visible absorption spectroscopic studies in the range 190-700 nm on the impact of flesharian diet, nicotin and alcoholic beverages in creating undesireable changes in the human physiology,  ∆λ₁ is found to be invariant in all the groups except the T chewers. The spread of ∆λ₁ is constant in all the six groups considered here.  Mean ∆λ₁  is found to be positive in E, EM,  T and A dietary factors,  while it is negative in EMATS, and S dietery groups.  Mean ∆A₁ is positive in EMATS, E, S and A groups, while it reverses, sign in EM and T groups.  Mean value of the shift in  λ₂,  is positive in all the six groups.  it means the second peak shifts to low frequency side due to the perturbing dietary factors. Nature of the dietary factor does not play any role in reversing the sign of the second wavelength shift. Mean ∆A₂  is negative in all the six groups.  it means the absorbance of the second UV absorption line becomes higher due to the perturbing ingredients. The impact of all the perturbing factors is unidirectional, so far as the second absorption line is concerned.

 

Keywords: UV, Visible, Absorption spectroscopy, diet, human physiology, tobacco products, alcoholic drinks

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