Re: Sprouts are not safe for birds to eat.
Some more links relating to the text emboldened. FYI. (If anyone is still interested at this point in time?)
https://www.nutriteam.com/diff - my recommendation was for Citricidal® liquid concentrate. (GSE)
What about rumours of chemicals in GSE?
https://www.nutriteam.com/faq#flora
I think I'm done, sincerely hoping that those who were contemplating having a go still will, the nutritional benefits to your parrot are very good.
Man, I just spent a couple of hours listing links and references, so I got logged out and lost the post. I will recreate it as much as possible ... the summary is that commercial Citricidal
does contain preservatives, is effective against microbes (gram positive more than gram negative)
and is toxic at concentrations up to 1:512. Why not just wash things in grain alcohol instead of a commercial chemical? For that matter, why does a "natural" antibiotic product need preservatives in the first place?
Starting with the links above: Nutriteam.com is a sales website, and presents no scientific support for their claims, only marketing material. The first thing I did was to see if I could find the actual studies they are downplaying, and I found them using Wikipedia (which contains decent information on the whole, accompanied by external links so we can validate for ourselves.)
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https://en.wikipedia.org/wiki/Grapefruit_seed_extract
"Anecdotal claims for an antimicrobial effect are based on a few abstract scientific experiments which show some antimicrobial activity for commercial grapefruit seed extracts and an ethanol grapefruit seed extract but not a natural GSE. The preliminary studies for the antimicrobial effect state that the
Citricidal commercial brand of GSE was used for testing. There is considerable scientific evidence that the anti-microbial activity associated with grapefruit seed extract is attributable to the contamination or adulteration of commercial GSE preparations with synthetic antimicrobials or preservatives. According to the 2001 GSE study, branded commercial GSE preparations were contaminated with synthetic benzethonium chloride that was implausible to be made from grapefruit seeds. Some of the marketers claimed that their product does not contain benzethonium chloride and the error was due to the similarity in molecular weight of the quaternary ammonium compound which was formed through a proprietary manufacturing process. It is inconceivable that the preservative benzethonium chloride is formed during any extraction and/or processing of grapefruit seeds and pulp.
Researchers conclusively demonstrated the presence of benzethonium chloride in commercial GSE using various analytical methods including HPLC, one- and two-dimensional NMR, PIXE analysis, and electrospray ionization MS."
Nutriteam.com says "USDA found benzelthonium chloride in its 2001 test. Was this a simple error or a deliberate attempt to scare people away from Citricidal and Nutribiotic products?"
Umm, I have to say that separate HPLC, MS, NMR, and PIXE tests are probably not all in error, and that no reputable scientist cares about scaring people away from the dreaded Nutribiotic site. They are more concerned about being contradicted by peers, seeing as how they have to publish what they did and how, and if the study were in error or misleading these contradictory comments would have surfaced by now.
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The methodology used to test for the preservatives, in case anyone is interested, also seems quite proper. I have done thousands of HPLC analyses, though I haven't done this, but again if the procedure were wrong there would be much refuting evidence published:
https://www.ncbi.nlm.nih.gov/pubmed/16719494
Development and validation of an HPLC/UV/MS method for simultaneous determination of 18 preservatives in grapefruit seed extract.
Ganzera M1, Aberham A, Stuppner H.
Author information
Abstract
Grapefruit seed extracts are used in cosmetics, food supplements, and pesticides because of their antimicrobial properties, but suspicions about the true nature of the active compounds arose when synthetic disinfectants such as benzethonium or benzalkonium chloride were found in commercial products. The HPLC method presented herein allows the quality assessment (qualitative and quantitative) of these products for the first time. On the basis of a standard mixture of 18 preservatives most relevant for food and grapefruit products, a method was developed allowing the baseline separation of all compounds within 40 min. Optimum results were obtained with a C-8 stationary phase and a solvent system comprising aqueous trifluoroacetic acid, acetonitrile, and 2-propanol. The assay was fully validated and shown to be sensitive (LOD < or= 12.1 ng on-column), accurate (recovery rates > or = 96.1%), repeatable (sigma(rel) < or = 3.5%), precise (intra-day variation < or = 4.5%, interday variation < or = 4.1%), and rugged. Without any modifications the method could be adopted for LC-MS experiments, where the compounds of interest were directly assignable in positive ESI mode. The quantitative results of several products for ecofarming confirmed previous studies, as seven out of nine specimens were adulterated with preservatives in varying composition. The samples either contained benzethonium chloride (2.5-176.9 mg/mL) or benzalkonium chloride (138.2-236.3 mg/mL), together with smaller amounts of 4-hydroxybenzoic acid esters, benzoic acid, and salicylic acid.
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Regarding toxicity:
https://www.ncbi.nlm.nih.gov/pubmed/12165191
RESULTS:
These tests indicated that from the 1:1 through the 1:128 concentrations, GSE remained toxic as well as bactericidal. However, test results indicated that at the 1:512 dilution, GSE remained bactericidal, but completely nontoxic.