Skip to main content
SpringerLink
Log in

A comparative chemical study of flue-curing and shade-curing of virginia tobacco

  • Published:
Proceedings / Indian Academy of Sciences

Summary and Conclusions

In order to study the biochemical peculiarities of flue-curing and air-curing a flue-cured type of leaf was subjected to both the systems of curing.

During the first 40 hours which corresponded to the yellowing stage in flue-curing, the leaf was at a higher temperature and humidity in flue-curing than in shade-curing.

This resulted in hastening of chemical reactions in flue-curing as compared to shade-curing. The leaf was completely yellow at the end of 40 hours in flue-curing, while it was only 75% yellow at the end of 123 hours in shade-curing. Also there was greater hydrolysis of starch, more production of sugars and finally greater loss of solids in flue-curing than in shade-curing.

The contribution of carbohydrates to respiratory losses in the early stages was more in flue-curing than in shade-curing, showing thereby that more of other constituents than carbohydrates contributed to these losses in shade-curing.

Probably because of this there was considerable loss of nitrogen under shade-curing while the changes in this constituent during flue-curing were insignificant.

The present study thus tends to show two facts.

1. Due to higher temperature in flue-curing the chemical reactions are hastened as compared with shade-curing.

2. Even in flue-cured leaf, some reactions characteristic of air-curing occur, if it is subjected to air-curing.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  • A.O.A.C. .. 1950, 365.

  • Askew, H. O., Monk, R. J., Joyce, H. and Ward, G.N.Z. Jour. Sci. Tech., 1954,35B, 344.

    CAS  Google Scholar 

  • Garner, W. W., Bacon, C. W., and Foubert, C. L.U.S.D.A. Bull., 1914,79.

  • Johnson, J. and Ogden, W. B. ..Wis. Agric. Expt. Stat. Res. Bull., 1931,110.

  • Loomis, W. E. and Schull, C. A.Methods in Plant Physiol., 1937.

  • Sastry, A. S...Proc. Ind. Acad. Sci., 1953,38, 125.

    Google Scholar 

  • U.S.D.A. ..Annual Rpt. Bur. Pl. Ind., 1941, 35.

  • Vickery, H. B. and Pucker, G. W.Conn. Agr. Expt. Stat. Bull., 1931,324.

  • --, --, Wakeman, A. J. and Leavenworth, C. S.Ibid., 1940,442.

  • -- and Meiss, A. N. ..Ibid., 1953,569.

Download references

Author information

Authors and Affiliations

  1. Chemist, Cigar and Cheroot Tobacco Research Station, via Dindigul, S. Rly., Vedasandur

    A. S. Sastry

Authors
  1. A. S. Sastry
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Communicated by Dr. S. V. Desai,f.a.sc.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Sastry, A.S. A comparative chemical study of flue-curing and shade-curing of virginia tobacco. Proc. Indian Acad. Sci. 43, 110–120 (1956). https://doi.org/10.1007/BF03050146

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF03050146

Keywords

Search

Navigation