Tråd: Holdbarhet bcaa, pre-wo o.l utblandet

Hei.

Lurer på om noen har noe science på hvordan sånne ting påvirkes når det er blandet ut i vann. Degraderes aminosyrene eller noe sånt lurt?

Eneste aminosyren jeg vet som degraderes raskt et l-glutamin. BCAA skal kunne holde seg i årevis så lenge du ikke lagrer dem med noe sukker.

Stability of amino acid mixtures in solution. 2. Stability of amino acid infusion solutions. Seydel, H.; Voigt, R. VEB Berlin-Chem., Berlin, Ger. Dem. Rep. Pharmazie (1972), 27(7), 460-6. CODEN: PHARAT ISSN: 0031-7144. Journal written in German. CAN 77:143772 AN 1972:543772 CAPLUS

Abstract

Similar results were obtained with 11 individual amino acids [lysine (I), histidine (II), methionine (III), phenylalanine (IV), tryptophan (V), arginine (VI), glycine, threonine, valine (VII), leucine, isoleucine] as with mixts. of these. The reactions of individual amino acids with O, Na pyrosulfite and O, and sorbitol (VIII) or with the reducing impurities contained in VIII are significant. After storage of VIII-free mixts. sterilized at 120 and satd. with N, and kept 1.5 years at 20, all remained stable, whereas when stored in the presence of I, after 1-1.5 years at 20, there were losses of 11% for V and of 6-8.5% for I, II, III, IV, V, VI, and VII. Addn. of small amts. of Na pyrosulfite (NaS2O5) increased the stability of VIII-contg. solns. when sufficiently satd. with N. After storage for 1.5 years in Jena glass infusion bottles, solns. were regarded as stable when there were losses of <10% of active substance. Similar changes were found in mixts. as in individual amino acids. There was no evidence of any interactions between amino acids. Storage of mixts. for 1.5 years resulted in losses of .apprx. 10% for I, II, III, and V and of .apprx.5% for the others. With solns. incompletely treated with N or sterilized for longer periods, impurities deriving from V could be detd. chromatographically. Only under optimum N satn. (possible only by intense gassing during prepn. of soln. and by use of specially airtight equipment) can the discoloration and amino acid losses seen in NaS2O5-contg. solns. be reduced to a min. With sufficient inert gas treatment of solns. and purest qualities of VIII having least impurities in reducing sugars, strong discoloration of amino acid infusion solns. can largely be avoided

Ok kompis! Da er det vel ingen fare å oppbevare shakene ferdigblandet i sekken i noen timer

Nei det skal sikkert gå greit. Mange av produsentene anbefaler jo at du blander den ut litt i forvei slik at skummen som ofte kommer av BCAA forsvinner.

Skal dere på skogstur, eller noe?

BCAA er hydrofobisk så om den lagres kaldt bør den kunne stå i flere uker.
Kan glatt stå i vann i romtemperatur fire fem timer..