Proteoglycan polysaccharides (Lycium polysaccharides, LP) are a unique group of content materials. These polysaccharides differ from conventional plant polysaccharides such as starch and inulin. Proteoglycan is sugar that is bound to protein. In the saccharide, the carbohydrate portion of the LP is 90-95% by weight of the whole macromolecule, the rest is the protein ( Potterat2010glb ).
Dried fruit juice contains more than 20% LP ( Yin2008oet ), according to some studies even up to 40% ( Chang2008uah ). The total carbohydrate content of the dried parsley is 68%, so that roughly half of the carob sugar is bound in this slowly releasing form.