Recherches sur l'amidon XXXVII. Déermination du poids moléculaire de polysaccharides naturels par dosage colorimétrique

Abstract

Volumen XXXI, Faseiculus I (1948). 103 Analyse de trois produits rksultant de prkpurations diffkrentes. C,H,O, (OCH,), calculi! -OCH, 45,6% Prbp. 1 2,210 ntgr. ont donni. 7,67 mgr. AgI trouvi. -OCH, 45,83% Prkp. 2 3,500 mgr. ont donni! 12,04 mgr. AgI trouvi! -OCH, 45,45% Prkp. 3 15,02 mgr. ont consommk 13,26 cm3 $0 thios. trouvi! -OCH, 45,64% La viscositi! avant et aprh le traitement a 6th d6terminke dans le tktrachlor6thane Nous attribuons la trBs faible diminution de la viscositk A la substitution des groupes A 200 (fig. 1). hydroxyles libres par des groupes -OCH,.

A Method for the Determination of Amylase in Intestinal Content

“…As the method is described in this paper, the concentration of starch in the reaction mixture is 10 mg/nil, rather than 5 mg/ml as was first used (Meyer et al, 1947). The higher substrate conceiitration has the advantage that greater amounts of reducing groups are liberated within the range of zero-order ltinetics for the amylase action (see helow).…”

Digestive Studies in Children

“…Tryptic activity was determined spectrophotometrically with a specific substrate (N-benzoylarginine ethyl ester) according to Lundh (1957). Amylase was determined by the method of Meyer, Noelting, and Bernfeld (1948). Amylase was determined by the method of Meyer, Noelting, and Bernfeld (1948).…”

Ethanol production from raw starch by a recombinant yeast having saccharification and fermentation activities

“…The degree of polymerization of starch was estimated from the ratio of the reducing sugar concentration, as measured by the 3,4‐dinitrosalicylic acid method,14 to the total sugar concentration, as measured using the phenol–sulfuric acid method 15. The amylose content was measured with the iodine colorimetric method 16.…”