Photosynthetic cells contain chlorophyll and other light-sensitive pigments that capture solar energy. In the presence of carbon dioxide, such cells are able to convert this solar energy into energy-rich organic molecules, such as glucose.
Yes, you can add a little lemon juice or vinegar to the goat's milk to make it into a buttermilk or kefir. This will lower the pH of the milk, and allow it to release the CO2 stored in the sodium bicarbonate (baking soda), causing the bread to rise. Goat's milk generally has less fat and more vitamins.
Benefits of Buttermilk. Buttermilk is fermented milk, usually made by adding lactic acid bacteria to regular milk. In a pinch, you can use a small amount of vinegar or lemon juice mixed with milk and left sitting for about 10 minutes to thicken in place of buttermilk.