Full TGIF Record # 6056
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Author(s):Chaves, M. C. F.; Moreira, I.
Author Affiliation:Centro de Botanica Aplicada a Agricultura, Universidade de Lisboa, Lisbon, Portugal
Title:Metodos para a determinacao de hidratos de carbono totais nao estruturais. Estudo comparativo em material vegetal
Translated Title:Methods for the determination of total non-structural carbohydrates Comparative study in plant material
Source:Agronomia Lusitana. Vol. 38, No. 1, 1977, p. 41-56.
Keywords:TIC Keywords: Cynodon dactylon; Panicum repens; Chemical composition; Carbohydrates; Corms; Fractionation
Abstract/Contents:Enzymatic (takadiastase) and acid methods for the determination of total non-structural carbohydrates (TNC) were compared using rhizomes of Panicum repens and Cynodon dactylon and commercial starch. The action of different conc. of acid (0.2-3.0 N H2SO4) on fructose, inulin, cellulose and glucose were also studied. With the grasses only 0.2 N H2SO4 gave similar results to takadiastase, while 1 or 1.5 N H2SO4 gave much higher values. It was concluded that the acid method can be inaccurate especially in plants rich in easily hydrolysable structural carbohydrates and that if such a method must be used it should be preceded by fractionation of the plant material.
Language:Portuguese
References:17
Note:Summary appears in English
Geographic Terms:Portugal
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Chaves, M. C. F., and I. Moreira. 1977. Metodos para a determinacao de hidratos de carbono totais nao estruturais. Estudo comparativo em material vegetal. (In Portuguese) Agronomia Lusitana. 38(1):p. 41-56.
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