Natural edible adsorbents can play an important role in human healthcare via lowering the harmful materials from gut and regulating the microflora composition. In this work, several microalgae and plant sources, including Chlorella vulgaris (Ch), zucchini (Zu), ginger (Gi), rice bran (RB) and Zahedi date (ZD), were studied on the production of edible and bacterial biosorbents for the adsorption of glucose, cholesterol and bile salt in vitro. By screening the sources, Ch, Zu and Gi were selected for maximizing the production of Lactobacillus plantarum. Afterward, the optimized mixture of zucchini-ginger-C. vulgaris (ZuGiCh), obtained from the combination of the microparticles of zucchini (48.80 g/l), ginger (35.00 g/l) and C. vulgaris (39.30 g/l), maximized L. plantarum cells to 2.37 ± 1.86 × 109 CFU/ml and minimized Escherichia coli and Staphylococcus aureus cells to 4.53 ± 0.41 × 108 and 8.10 ± 0.61 × 108 CFU/ml, respectively. The simultaneous incorporation of S. aureus and ZuGiCh as an edible microbiosorbent resulted in the highest adsorption of glucose (57.65%) and cholesterol (83.65%) at initial concentration of 40 g/l adsorbate while the incorporation of L. plantarum and ZuGiCh showed the highest adsorption of bile salt (42.59%) at initial concentration of 80 g/l bile salt. The ZuGiCh microparticles can be used as a potentially intestinal adsorbent for improving microflora and lowering of health hazards from gut.

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