This is to ensure that the natural rubber price remains remunerative to over three million smallholder households and also fair for consumers relative to synthetic rubber price.
Glucose-free solutions remained clear, but solutions with glucose caused the proteins to form clusters, suggesting that the molecules had become cross-linked.
It was only with the growth of paediatrics and psychology in the twentieth century that studies could be carried out on a more objective, if still not always very scientific, basis.