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Digitale Medien

Provitamin A and Ascorbic Acid Content of Fresh Pepper Cultivars (Capsicum annuum) and Processed Jalapeños (1994)

HOWARD, L. R. ; SMITH, R. T. ; WAGNER, A. B. ; [weitere]

Oxford, UK : Blackwell Publishing Ltd

Journal of food science 59 (1994), S. 0

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ISSN: 1750-3841

Quelle: Blackwell Publishing Journal Backfiles 1879-2005

Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung

Notizen: Alpha and beta carotene, provitamin A activity, dehydroascorbic acid, L-ascorbic acid and total ascorbic acid content of “jalapeño,”“bell,” long green/red “chile,”“serrano” and “yellow wax” peppers (Cupsicum annuum L.) at green and red stages of maturity were determined by HPLC. Effects of thermal processing on vitamin A and C retention in “jalapeno” peppers was also determined. Provitamin A activity ranged from 27.3 to 501.9 Retinol Equivalents (RE/100g). Ascorbic acid concentration ranged from 76.1 to 243.1 (mg/100g). Provitamin A activity and ascorbic acid content increased with maturity in all cultivars. Thermal processing of “jalapeño” cultivars resulted in a 25% decrease of total provitamin A activity and a 75% decrease in total ascrobic acid.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1111/j.1365-2621.1994.tb06967.x

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Digitale Medien

Model-independent separation of structure functions over an extended kinematical region (1994)

Veit, T. ; Blomqvist, K. I. ; Boeglin, W. U. ; [weitere]

Springer

The European physical journal 349 (1994), S. 161-168

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ISSN: 1434-601X

Schlagwort(e): 25.30.Fj ; 21.10.Pc ; 02.60.Ed

Quelle: Springer Online Journal Archives 1860-2000

Thema: Physik

Notizen: Abstract A method for the separation of structure functions in (e, e′ p) experiments is proposed, which is an extension of the traditional Rosenbluth-type techniques of [1,2]. In our approach, we use a very flexible Ansatz to describe the structure functions within an extended kinematical regionG and determine its free parameters with a x2 minimization. The procedure is tested by pseudo data (12C(e, e′p)11Bg.s.) in the quasi-free region.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF01291175

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Digitale Medien

Tail-to-tail orientation of the Atlantic salmon alpha- and beta-globin genes (1994)

Wagner, A. ; Deryckere, F. ; McMorrow, T. ; [weitere]

Springer

Journal of molecular evolution 38 (1994), S. 28-35

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ISSN: 1432-1432

Schlagwort(e): α-globin ; β-globin ; Atlantic salmon ; Genomic organization

Quelle: Springer Online Journal Archives 1860-2000

Thema: Biologie

Notizen: Abstract We report the cloning of a cDNA and two corresponding β-globin genes of the Atlantic salmon (Salmo salar L.) as well as two genes for α-globins. Nucleotide sequence analysis of the cDNA shows that the predicted β-globin peptide comprises 148 amino acids with a calculated molecular mass of 16,127 Da and an overall amino acid similarity of 40–50% to higher vertebrates and 60–90% to fish sequences. The study of the genomic organization of α- and β-globin genes shows that, as is the case in Xenopus, the salmon genes are adjacent. Two sets of linked α- and β-globin genes were isolated and restriction-enzyme polymorphisms indicate that they belong to two distinct loci, possibly as a result of the salmon tetraploidy. In each locus the α- and β-globin genes are oriented 3′ to 3′ relative to each other with the RNA coding sequences located on opposite DNA strands. This is the first evidence for this type of arrangement found for globin genes. Moreover, while the linkage found in salmon and Xenopus supports the hypothesis of an initial tandem duplication of a globin ancestor gene, our results raise the question of the actual original orientation of the duplicated genes.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00175492

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