Provided herein are methods for processing natural rubber, also referred to as latex, without the use of ammonia. The methods provided herein may comprise one or more of the following steps: (a) a collection step wherein liquid latex is collected from a plant and, preferably, is filtered to remove impurities from the environment; (b) a stabilization step wherein a liquid latex composition is refrigerated and/or contacted with a stabilizing agent; (c) a preservation step wherein the liquid latex composition is contacted with a preserving agent; (d) a pH adjustment step wherein the liquid latex composition is contacted with a pH adjusting agent; (e) a storage step wherein the liquid latex composition is stored for a period of time; and (f) a coagulation step wherein the liquid latex composition is contacted with a coagulation agent, thereby forming a solid latex composition. Also provided herein are stabilized and preserved liquid latex compositions having a long shelf life, and solid rubber compositions having advantageous physical and chemical properties.

Provided herein are methods for processing natural rubber, also referred to as latex, without the use of ammonia. The methods provided herein may comprise one or more of the following steps: (a) a collection step wherein liquid latex is collected from a plant and, preferably, is filtered to remove impurities from the environment; (b) a stabilization step wherein a liquid latex composition is refrigerated and/or contacted with a stabilizing agent; (c) a preservation step wherein the liquid latex composition is contacted with a preserving agent; (d) a pH adjustment step wherein the liquid latex composition is contacted with a pH adjusting agent; (e) a storage step wherein the liquid latex composition is stored for a period of time; and (f) a coagulation step wherein the liquid latex composition is contacted with a coagulation agent, thereby forming a solid latex composition. Also provided herein are stabilized and preserved liquid latex compositions having a long shelf life, and solid rubber compositions having advantageous physical and chemical properties.