The discoloration of water that sometimes occurs when sprout seeds are soaked or let to drain is often a result of the breakdown of pigments in the seeds. Sprouts are living plants and contain chlorophyll, which is the pigment that gives plants their green color. Over time, chlorophyll can break down and release into the soaking water, giving it a brownish or yellowish color.
In addition to chlorophyll, sprout seeds can contain other pigments, such as carotenoids and anthocyanins, which can also contribute to the discoloration of the water. The discoloration can be influenced by several factors, including temperature, humidity, and the length of time that the seeds are soaked.
It’s important to note that discolored water from soaking sprout seeds is not necessarily an indicator of spoilage or unsafe conditions. However, if the water has an off odor or if there is visible mold growth, it’s best to discard the seeds and the soaking water.