rakukesta heterogeensete polüsahhariidide rühm, mis on keskkonnaks tselluloosi ja ristseoseliste glükaanide ahelatele
Pectin consists of a complex set of polysaccharides that are present in most primary cell walls and are particularly abundant in the non-woody parts of terrestrial plants. Usually contain galacturonic and glycuronic acid.
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Tavaliselt sisaldavad suhkurhappeid (galakturoon- ja glükuroonhape). Struktuuri tekitamisel on olulised pektiinainete naaberahelate karboksüülrühmi ühendavad Ca2+ ioonid.
