New water-soluble nickel and cobalt complexes—sodium cobalt pectinate (PNaCo) and sodium nickel pectinate (PNaNi)—have been obtained from sodium pectinate with a salt formation extent of 35%, and their physicochemical properties have been studied. Antimicrobial activity of PNaCo and PNaNi against gram-positive and gram-negative bacteria and fungi has been shown.

中文翻译：

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钴镍离子新型果胶酸钠金属配合物的合成及其抗菌活性

以成盐率为35%的果胶钠为原料制备了新型水溶性镍钴配合物——果胶钴钠（PNaCo）和果胶镍钠（PNaNi），并对其理化性质进行了研究。PNaCo 和 PNaNi 对革兰氏阳性和革兰氏阴性细菌和真菌具有抗菌活性。