Effect of Parboiling on Phenolic, Protein, and Pasting Properties of Rice from Different Paddy Varieties
2018
Pal, Priyanka | Singh, Narpinder | Kaur, Parmeet | Kaur, Amritpal
The present study evaluated the effect of parboiling on milling, chemical constituents, pasting and cooking properties of different paddy varieties. Parboiling decreased L* and a* values and increased b* and head rice recovery. Parboiling significantly increased the protein content and antioxidant activity on a dry basis. Parboiling decreased whiteness, fat content, and paste viscosities. The parboiling process increased the hydrophobicity of rice from all the varieties. Parboiled milled rice showed higher free and bound phenolic acids as compared to unparboiled milled rice. Parboiled milled rice showed higher content of essential amino acid than unparboiled milled rice. Variety PB1121 was suited best for parboiling on the basis of total color (ΔE), protein content, essential amino acid, and phenolic acids among the evaluated paddy varieties. PRACTICAL APPLICATION: The present study revealed that parboiled milled rice had higher antioxidant activity, amino acids, ferulic acid, and p‐coumaric acids. Indeed, parboiled milled rice showed better textural and nutritional properties and would be more suitable for canning, puffed rice and biryani (rice cooked with chicken/mutton).
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