Grapes Black are, actually, either black or purple in colour. This is a fruit kind which is small in size and is of oval shape. Biologically, it is famous as Vitis vinifera and belongs to family Vitaceae. In Hindi it is called aṅgūra kale. Aṅgūra is sweet to taste and is found in all parts of India during winter season.
Dietary intake of Black Grapes is quite beneficial in improving brain functionality. Memory is enhanced and one can also be prevented from brain diseases like Alzheimer disease. Moreover black grapes reduce risk of cardiac ailments.
Always avoid sour grapes.