F.J. Bandelin

Bio: F.J. Bandelin is an academic researcher from Eaton Corporation. The author has contributed to research in topics: Choline & Gravimetric analysis. The author has an hindex of 7, co-authored 26 publications receiving 147 citations.

The stability of ascorbic acid in various liquid media

Abstract: The stability of ascorbic acid at several concentrations in various liquid media including aqueous solutions of cellulose gums, pectin, sucrose, dextrose, corn syrup, and in glycerin and propylene glycol was studied The effect of p H in aqueous solutions of ascorbic acid was also studied Viscosity alone as produced by gums did not prevent decomposition of ascorbic acid Sugar and sorbitol solutions exerted a marked stabilizing effect Ascorbic acid was relatively stable in glycerin and propylene glycol and in sugar and sorbitol solutions Data are presented on the rates of decomposition of ascorbic acid in these media after storage at room temperature and at 40°C The stability of ascorbic acid in syrups containing conjointly vitamins of the B‐complex is not materially affected

The estimation of betaine and choline in mixtures.

Abstract: Choline and betaine may be separated from mixtures of these two lipotropic agents by selective precipitation of their respective reineckates. Choline reineckate may be quantitatively precipitated from an alkaline solution without interference of betaine. Betaine reineckate may be quantitatively precipitated from the acidified solution. Methionine and inositol do not interfere. Accompanying data indicate the method is rapid, accurate, and reproducible.

Map construction in Neurospora crassa.

Abstract: Publisher Summary In this chapter linkage and centromere data from neurospora crassa have been compiled from all published material, as well as unpublished sources Tetrad data from gene–centromere and gene–gene intervals have been placed on a uniform basis for mapping by computing map lengths from second-division segregation frequencies and tetratype segregation frequencies, respectively Maps of the seven linkage groups have been constructed from tetrad data Seventy-five loci are shown Confidence limits are indicated for the position of each locus Two sets of maps are presented, the first is completely uncorrected for multiple crossovers and the second is corrected by means of the mapping function A few additional genes have been assigned to specific linkage groups on the basis of random isolates The use of random isolates for mapping is also discussed