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Iowa State University

Life Sciences

Animal Science

1997

Food Science and Human Nutrition Publications

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Ingredient Selection For Plastic Composite Supports For L-(+)-Lactic Acid Biofilm Fermentation By Lactobacillus Casei Subsp. Rhamnosus, K.L. Ho, A. L. Pometto Iii, P. N. Hinz, James S. Dickson, A. Demirci Jul 1997

Ingredient Selection For Plastic Composite Supports For L-(+)-Lactic Acid Biofilm Fermentation By Lactobacillus Casei Subsp. Rhamnosus, K.L. Ho, A. L. Pometto Iii, P. N. Hinz, James S. Dickson, A. Demirci

Food Science and Human Nutrition Publications

Plastic composite supports containing 50% agricultural products (oat hulls, soybean hulls, yeast extract, soybean flour, dried bovine erythrocytes, bovine albumin, and/or mineral salts) and 50% (wt/wt) polypropylene were produced by high-temperature twin-screw extrusion. The research employed two half sets of a five-factorial fractional design (2(5 - 1)) to evaluate the effects of different agricultural components on the properties of the plastic composite supports and to select the best plastic composite support formulation for lactic acid fermentation. The biofilm population was affected by the contact angle and relative hydrophobicity of the supports (r = 0.79 to 0.82). Lactic ...