Sally Burr

6 Questions 28 Answers 0 Followers

Questions related from Sally Burr

Is there published research about the polysaccharide composition of cereal brans?

Hi, I am interested in the polysaccharide composition of wheat and oat bran. I assume that cellulose, arabinoxylans, mixed-linkage glucans and possibly some starch will be present, because these...

07 July 2022 4,851 0 View

Is there a reducing ends assay suitable for pectin?

Does anyone know of a reducing ends assay which can be used on pectins without degrading the pectin backbone? The DNS assay, which I have been using for pectinase assays, contains strong alkali.

08 June 2021 4,661 1 View

Amides v. primary ammonium carboxylate salts?

I am studying the reaction of carboxylic acids with a polymeric amine by enzymatic means. Is there a good method of determining quickly whether I have amide bonds or whether all that has happened...

13 May 2017 164 2 View

How can I handle and dispose sodium cyanoborohydride?

I am considering using sodium cyanoborohydride in a reductive N-alkylation of a polysaccharide, and want to know how to handle it safely and dispose of the nitrile byproduct. Has anyone experience...

29 January 2015 4,219 8 View

Fatty acid derivatisation for HPLC; how should I be doing it?

I have been trying to quantify oleic acid by HPLC using this protocol derived from the www.cyberlipid.org website. Dissolve oleic acid standard in 0.5ml methanol (concentration range from 2mg/ml...

19 November 2014 6,682 3 View

Separation methods for lignans?

I am thinking of doing research on oligomerized cinnamic acid derivatives in the plant cell wall. Given that lignans vary quite a bit in molecular weight, degree of polymerisation, and structure,...

25 March 2013 1,791 3 View