New prenylated benzoic acid and other constituents from almond hulls (Prunus amygdalus Batsch).

One new prenylated benzoic acid derivative; 3-prenyl-4-O-beta-D-glucopyranosyloxy-4-hydroxylbenzoic acid; and three known constituents; catechin; protocatechuic acid; and ursolic acid; have been isolated from the hulls of almond (Prunus amygdalus). Complete assignments of the proton and carbon chemical shifts for the new prenylated benzoic acid derivative were accomplished on the basis of high-resolution 1D and 2D nuclear […]

Sphingolipid and other constituents from almond nuts (Prunus amygdalus Batsch).

One sphingolipid; 1-O-beta-D-glucopyranosyl-(2S;3R;4E;8Z)-2-[(2R)-2-hydroxyhexadecanoylamino]-4;8-octadecadiene-1;3-diol; and four other constituents; beta-sitosterol; daucosterol; uridine; and adenosine; have been isolated from the nuts of almond (Prunus amygdalus). Complete assignments of the proton and carbon chemical shifts for the sphingolipid were accomplished on the basis of high-resolution 1D and 2D NMR data. All of these compounds are being reported from almond […]

Biochemical characterization of amandin; the major storage protein in almond (Prunus dulcis L.).

The almond major storage protein; amandin; was prepared by column chromatography (amandin-1); cryoprecipitation (amandin-2); and isoelectric precipitation (amandin-3) methods. Amandin is a legumin type protein characterized by a sedimentation value of 14S. Amandin is composed of two major types of polypeptides with estimated molecular weights of 42-46 and 20-22 kDa linked via disulfide bonds. Several […]

Detection and stability of the major almond allergen in foods.

Almond major protein (AMP or amandin); the primary storage protein in almonds; is the major allergen recognized by almond-allergic patients. A rabbit antibody-based inhibition ELISA assay for detecting and quantifying AMP in commercial foods has been developed; and this assay; in conjunction with Western blotting analyses; has been applied to the investigation of the antigenic […]