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1-Kestose

$236

  • Brand : BIOFRON

  • Catalogue Number : BD-P0672

  • Specification : 98.0%(HPLC)

  • CAS number : 470-69-9

  • Formula : C18H32O16

  • Molecular Weight : C18H32O16

  • Volume : 25mg

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Catalogue Number

BD-P0672

Analysis Method

Specification

98.0%(HPLC)

Storage

2-8°C

Molecular Weight

C18H32O16

Appearance

Botanical Source

Structure Type

Carbohydrates

Category

SMILES

C(C1C(C(C(C(O1)OC2(C(C(C(O2)CO)O)O)COC3(C(C(C(O3)CO)O)O)CO)O)O)O)O

Synonyms

1-Ketose/Kestose/1-KESTOSE/kestotriose

IUPAC Name

Applications

Density

1.82g/cm3

Solubility

Water

Flash Point

499.9ºC

Boiling Point

902.9ºC at 760mmHg

Melting Point

InChl

InChl Key

WGK Germany

RID/ADR

HS Code Reference

Personal Projective Equipment

Correct Usage

For Reference Standard and R&D, Not for Human Use Directly.

Meta Tag

provides coniferyl ferulate(CAS#:470-69-9) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. Articles of coniferyl ferulate are included as well.>> amp version: coniferyl ferulate

No Technical Documents Available For This Product.

PMID

31012794

Abstract

In this study, various levels of ultra-high pressure (UHP) were combined with the enzymatic synthesis of the fructooligosaccharide (FOS) using Pectinex Ultra SP-L and inulinase. The combination enhanced the FOS yields up to 2.5- and 1.5-fold, respectively, compared to atmospheric condition (0.1 MPa). However, the enzymatic reaction was dependent on the levels of pressure, the reaction times, and the initial sucrose concentrations. The combined UHP and inulinase showed that the maximum FOS yield (71.81%) was obtained under UHP at 200 MPa for 20 min with 300 g/L of initial sucrose as a substrate, while the FOS yield (57.13%) using Pectinex Ultra SP-L was obtained under UHP at 300 MPa for 15 min with 600 g/L of initial sucrose as a substrate. The FOS composition produced by Pectinex Ultra SP-L under the UHP was 1-kestose (GF2), nystose (GF3), and 1F-fructofuranosylnystose (GF4), whereas the FOS produced by inulinase composed of only GF2 and GF3. The combined UHP is a useful tool in the industrial application for FOS production. Highlights UHP activated the activity of Pectinex Ultra SP-L yet inactivated inulinase Pressure level, time, and sucrose concentration significantly affect FOS yields under UHP UHP enhanced FOS production with time-saving benefits within 15-20 min.

KEYWORDS

Fructooligosaccharide; Pectinex Ultra SP-L; UHP-enzyme hydrolysis; fructosyltransferase; inulinase; ultra-high pressure processing

Title

Effects of ultra-high pressure on effective synthesis of fructooligosaccharides and fructotransferase activity using Pectinex Ultra SP-L and inulinase from Aspergillus niger.

Author

Kawee-Ai A1, Chaisuwan W1, Manassa A1, Seesuriyachan P1.

Publish date

2019

PMID

30301900

Abstract

Under specific reaction conditions, levansucrase from Bacillus subtilis (SacB) catalyzes the synthesis of a low molecular weight levan through the non-processive elongation of a great number of intermediates. To deepen understanding of the polymer elongation mechanism, we conducted a meticulous examination of the fructooligosaccharide profile evolution during the levan synthesis. As a result, the formation of primary and secondary intermediates series in different reaction stages was observed. The origin of the series was identified through comparison with product profiles obtained in acceptor reactions employing levanbiose, blastose, 1-kestose, 6-kestose, and neo-kestose, and supported with the isolation and NMR analyses of some relevant products, demonstrating that all of them are inherent products during levan formation from sucrose. These results allowed to establish the network of fructosyl transfer reactions involved in the non-processive levan synthesis. Overall, our results reveal how the relaxed acceptor specificity of SacB during the initial steps of the synthesis is responsible for the formation of several levan series, which constitute the final low molecular weight levan distribution.

Title

Understanding the transfer reaction network behind the non-processive synthesis of low molecular weight levan catalyzed by Bacillus subtilis levansucrase.

Author

Raga-Carbajal E1, Lopez-Munguia A1, Alvarez L2, Olvera C3.

Publish date

2018 Oct 9;

PMID

30109658

Abstract

Carbohydrate fatty acid esters have a broad spectrum of applications in the food, cosmetic, and pharmaceutical industries. The enzyme-catalyzed acylation is significantly more selective than the chemical process and is carried out at milder conditions. Compared with mono- and disaccharides, the acylation of trisaccharides has been less studied. However, trisaccharide esters display notable bioactive properties, probably due to the higher hydrophilicity of the sugar head group. In this chapter, we describe the acylation of two trisaccharides, maltotriose and 1-kestose, catalyzed by different immobilized lipases, using vinyl esters as acyl donors. To illustrate the potential of such compounds, the antitumor activity of 6″-O-palmitoyl-maltotriose is shown.

Title

Lipase-Catalyzed Synthesis of Fatty Acid Esters of Trisaccharides.

Author

Gonzalez-Alfonso JL1, Casas-Godoy L2, Arrizon J3, Arrieta-Baez D4, Ballesteros AO1, Sandoval G5, Plou FJ6.

Publish date

2018