Digestibility of pollen grains of poppy (Papaver rhoeas) and hazelnut (Corylus avellana) subjected to a human-like in vitro digestion with pancreatic enzymes was evaluated. Pollens showed different types of walls. Digestibility was determined for total protein and insoluble carbohydrate contents by means of a new application of microspectrophotometry. Results demonstrated that pollen grains of both species were only partly digested; after 24 h treatment, only 26% of carbohydrates and 48% of proteins were digested in poppy and only 3% and 59% in hazelnut. This is probably due to the difficulty of enzymes to penetrate the intine of pollen grains. The degree of digestion of insoluble carbohydrates varied in the studied species according to their chemical nature and their storage sites.

Franchi, G.G., Franchi, G., Corti, P., Pompella, A. (1997). Microspectrophotometric evaluation of digestibility of pollen grains. PLANT FOODS FOR HUMAN NUTRITION, 50(2), 115-126 [10.1007/BF02436031].

Microspectrophotometric evaluation of digestibility of pollen grains

FRANCHI, GIAN GABRIELE;FRANCHI, GIUSEPPE;CORTI, PIERO;
1997-01-01

Abstract

Digestibility of pollen grains of poppy (Papaver rhoeas) and hazelnut (Corylus avellana) subjected to a human-like in vitro digestion with pancreatic enzymes was evaluated. Pollens showed different types of walls. Digestibility was determined for total protein and insoluble carbohydrate contents by means of a new application of microspectrophotometry. Results demonstrated that pollen grains of both species were only partly digested; after 24 h treatment, only 26% of carbohydrates and 48% of proteins were digested in poppy and only 3% and 59% in hazelnut. This is probably due to the difficulty of enzymes to penetrate the intine of pollen grains. The degree of digestion of insoluble carbohydrates varied in the studied species according to their chemical nature and their storage sites.
1997
Franchi, G.G., Franchi, G., Corti, P., Pompella, A. (1997). Microspectrophotometric evaluation of digestibility of pollen grains. PLANT FOODS FOR HUMAN NUTRITION, 50(2), 115-126 [10.1007/BF02436031].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/8751
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