Physicochemical, Functional, and Microbiological Studies on Beetroot

Beetroot ( Beta vulgaris ) is a nutritionally dense root vegetable renowned for its health-promoting properties, largely attributed to its rich content of bioactive compounds such as betalains, phenolic compounds, and essential vitamins. Among these, betalains are particularly significant due to their strong antioxidant, anti-inflammatory, and free radical-scavenging activities. Beetroot can be consumed in various convenient formulations, including fresh-cut pieces, juice, chips, grated beetroot, ready-to-drink health beverages, and beetroot powder, making it a versatile dietary source. Physicochemical analysis revealed that the beetroot samples exhibited a characteristic dark red color, with an average weight ranging from 85.33 to 412 g, lengths between 6.03 and 16.25 cm, and widths from 4.03 to 6.94 cm. Nutritionally, beetroot is a rich source of dietary fiber and essential minerals such as calcium, phosphorus, iron, potassium, sodium, magnesium, manganese, zinc, and copper. It also contains a wide range of vitamins, including thiamine, riboflavin, pantothenic acid, pyridoxine, and vitamins E, A, and C. Beetroot demonstrates significant antioxidant potential, primarily due to its water-soluble pigments (betalains) and phenolic content. This article comprehensively reviews the existing literature on the physicochemical and functional properties of beetroot, including hydration capacity, oil absorption, swelling properties, hydrophobicity, water activity, and bulk density. Furthermore, it explores microbiological assessments conducted on both fresh and processed beetroot products, offering a holistic understanding of its nutritional, functional, and microbial profile.