Dataset Information

Physico-chemical and sensory characteristics of steviolbioside synthesized from stevioside and its application in fruit drinks and food.

ABSTRACT: Steviolbioside (Sb) was synthesized from stevioside and characterized by infrared, nuclear magnetic resonance (¹H NMR and ¹³C NMR) spectroscopy. The purity melting point, solubility, acute toxicity, heat stability and sensory properties of Sb were evaluated. Physico-chemical and sensory properties of low calorie fruit drinks and shortened cake prepared by replacing sugar with Sb were evaluated. Sb was stable in neutral or acidic aqueous solutions maintained at 100 °C for 2 h. The sweetness intensity rate of Sb was found to be about 44 and 18.51 times sweeter than 0.5% and 10% sucrose solution, respectively. Sb solutions had sweet taste without bitterness compared to stevioside. No significant differences between the organoleptic properties of cakes prepared using sugar and those prepared replacing sugar with 50% Sb were observed. All drinks replacing sugar with Sb at 66% level had the highest overall acceptability scores comparable to those prepared using sugar alone.

SUBMITTER: Khattab SN

PROVIDER: S-EPMC5305715 | biostudies-literature | 2017 Jan

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

Physico-chemical and sensory characteristics of steviolbioside synthesized from stevioside and its application in fruit drinks and food.

Khattab Sherine N SN Massoud Mona I MI Abd El-Razek Amal M AM El-Faham Ayman A

Journal of food science and technology 20170118 1

Steviolbioside (Sb) was synthesized from stevioside and characterized by infrared, nuclear magnetic resonance (<sup>1</sup>H NMR and <sup>13</sup>C NMR) spectroscopy. The purity melting point, solubility, acute toxicity, heat stability and sensory properties of Sb were evaluated. Physico-chemical and sensory properties of low calorie fruit drinks and shortened cake prepared by replacing sugar with Sb were evaluated. Sb was stable in neutral or acidic aqueous solutions maintained at 100 °C for 2 ...[more]

PMID: 28242916

Similar Datasets

Project description:Chromosomal orthologs can reveal the shared ancestral gene set and their evolutionary trends. Additionally, physico-chemical properties of encoded proteins could provide information about functional adaptation and ecological niche requirements.We analyzed 7080 genes (five groups of 1416 orthologs each) from Rhizobiales species (S. meliloti, R. etli, and M. loti, plant symbionts; A. tumefaciens, a plant pathogen; and B. melitensis, an animal pathogen). We evaluated their phylogenetic relationships and observed three main topologies. The first, with closer association of R. etli to A. tumefaciens; the second with R. etli closer to S. meliloti; and the third with A. tumefaciens and S. meliloti as the closest pair. This was not unusual, given the close relatedness of these three species. We calculated the synonymous (dS) and nonsynonymous (dN) substitution rates of these orthologs, and found that informational and metabolic functions showed relatively low dN rates; in contrast, genes from hypothetical functions and cellular processes showed high dN rates. An alternative measure of sequence variability, percentage of changes by species, was used to evaluate the most specific proportion of amino acid residues from alignments. When dN was compared with that measure a high correlation was obtained, revealing that much of evolutive information was extracted with the percentage of changes by species at the amino acid level. By analyzing the sequence variability of orthologs with a set of five properties (polarity, electrostatic charge, formation of secondary structures, molecular volume, and amino acid composition), we found that physico-chemical characteristics of proteins correlated with specific functional roles, and association of species did not follow their typical phylogeny, probably reflecting more adaptation to their life styles and niche preferences. In addition, orthologs with low dN rates had residues with more positive values of polarity, volume and electrostatic charge.These findings revealed that even when orthologs perform the same function in each genomic background, their sequences reveal important evolutionary tendencies and differences related to adaptation.

Dataset Information

Physico-chemical and sensory characteristics of steviolbioside synthesized from stevioside and its application in fruit drinks and food.

Publications

Physico-chemical and sensory characteristics of steviolbioside synthesized from stevioside and its application in fruit drinks and food.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets