Best Sources of Carotenoids. Carotenoids are found in orange, yellow, and red fruits and vegetables, like pumpkin, carrots, and tomatoes. For beta-carotene, carrots and pumpkins are forefront; however, spinach, sweet potatoes, cantaloupe, and dandelion greens also represent excellent sources.est Sources of Carotenoids. Carotenoids are found in orange, yellow, and red fruits and vegetables, like pumpkin, carrots, and tomatoes. For beta-carotene, carrots and pumpkins are forefront; however, spinach, sweet potatoes, cantaloupe, and dandelion greens also represent excellent sources.
Dakin's solution. an aqueous solution containing sodium hypochlorite and sodium bicarbonate; used in enormous quantities when veterinary surgery was a barnyard and kitchen table practice, and infected wounds were the norm. It was in general use as a local antibacterial and to irrigate wounds.
As a demonstration, combine vinegar, detergent, and baking soda in a graduated cylinder so that foam rises and spills over the top. Make a detergent solution by adding 1 teaspoon of liquid dish detergent to 2 tablespoons of water. Divide this detergent solution equally into one small cup for each group.