niklasdj skrev:Magic-MJ-Music skrev:niklasdj skrev:Magic-MJ-Music skrev:niklasdj skrev:Det på side 3 har jo intet specifikt at gøre med proteinkvaliteten i de forskellige mælketyper. Som forfatteren også skriver, ses der snarere på enzymer, vitaminer og bakterier.
Behøves man i virkeligheden diske op med konkret bevis? Er det ikke snarere almen viden?
Svar nu på mit konkrete spørgsmål om proteinkvaliteten. Er 30 gram protein fra råmælk sundere end 30 gram protein fra proteinpulver/pasteuriseret mælk/whatever? Og hvis du mener, at det er sundere, skyldes det så ikke snarere det større indhold af f.eks. vitaminer i råmælken frem for selve aminosyresammensætningen i proteinindholdet?
Lol? Du stillede slet ikke noget spørgsmålstegn vedr. proteinkvaliteten.
Og du svare stortset selv på dit spøgsmål.
Jeg har aldrig sagt at råmælk er sundere baseret alene på aminosyresammensætning.
Du skrev: Udvundet protein fra mælk i proteinpulver, kan ikke måle sig med kvaliteten af protein fra råmælk.
Jeg spurgte: Hvordan vurderer du kvaliteten af de proteiner?
Hvis vi isoleret ser på proteinindholdet i råmælk vs. proteinindholdet i proteinpulver, kan vi så blive enige om, at der ikke er nogen sundhedsmæssig forskel? Jeg fokuserer udelukkende på proteinindholdet, du inddrager også alt det udenom.
Jeg tror det er svært at sammenligne da det proteinpulver man køber generelt er 80% whey. Mælk er 80% kasein og 20% whey.
MEN der er ikke den store forskel på om du tager whey eller kasein efter træning. Det skal dog siges jeg selv tager whey efter træning.
http://www.ncbi.nlm.nih.gov/pubmed/21045172This study showed that immediate responses to whey and casein ingestion were different... But the end result was the same. They both stimulated protein synthesis equally.
http://www.ncbi.nlm.nih.gov/pubmed/15570142This study shows almost exactly the same thing. Both proteins caused equal protein synthesis.
Jeg kan evt. lige tilføje dette:
Proteins in raw milk
Our bodies use amino acids as building blocks for protein. Depending on who you ask, we need 20-22 of them for this task. Eight of them are considered essential, in that we have to get them from our food. The remaining 12-14 we can make from the first eight via complex metabolic pathways in our cells.
Raw cow's milk has all 8 essential amino acids in varying amounts, depending on stage of lactation (8). About 80% of the proteins in milk are caseins- reasonably heat stable and, for most, easy to digest. The remaining 20% or so are classed as whey proteins, many of which have important physiological effects (bioactivity) (9). Also easy to digest, but very heat-sensitive (10), these include key enzymes (11) (specialized proteins) and enzyme inhibitors, immunoglobulins (antibodies) (12), metal-binding proteins, vitamin binding proteins and several growth factors.
Current research is now focusing on fragments of protein (peptide segments) hidden in casein molecules that exhibit anti-microbial activity (13).
Lactoferrin (14), an iron-binding protein, has numerous beneficial properties including (as you might guess) improved absorption and assimilation of iron, anti-cancer properties and anti-microbial action against several species of bacteria responsible for dental cavities (15). Recent studies also reveal that it has powerful antiviral properties as well (16).
Two other players in raw milk's antibiotic protein/enzyme arsenal are lysozyme and lactoperoxidase (17). Lysozyme can actually break apart cell walls of certain undesirable bacteria, while lactoperoxidase teams up with other substances to help knock out unwanted microbes too.
The immunoglobulins, an extremely complex class of milk proteins also known as antibodies, provide resistance to many viruses, bacteria and bacterial toxins and may help reduce the severity of asthma symptoms (18). Studies have shown significant loss of these important disease fighters when milk is heated to normal processing temperatures (19).