tailieunhanh - Bioactivity analysis and citral content estimation of value added paneer incorporated with lemongrass extract and lemongrass oil

Effect of lemongrass extract and oil on the bioactivity (antioxidant and antimicrobial property) and citral content of paneer was evaluated in this study. Lemongrass was incorporated in the following three ways: i) cut and crushed leaves were added to milk @ 0, 2, 4 and 6% (w/v) or to coagulant solution @ 20% (w/v) and extracted by heat treatment; ii) cut leaves were heat extracted in potable water followed by heat concentration, and chilling. The chilled water was used for soaking paneer blocks; iii) Lemongrass oil added to milk at 0, , and levels. The studies on antioxidant characteristics as evaluated by DPPH and FC assays revealed that, RSA activity was the highest for paneer added with lemongrass oil ( inhibition) and the total phenolic compounds were found to be the maximum ( mg/g GAE) for paneer incorporated with crushed lemongrass leaf. The antibacterial studies of paneer samples revealed that the incorporation of lemongrass extract as well as oil did not impart any antibacterial effect. Paneer sample with the addition of lemongrass leaf-bits (4% w/v) into milk, was selected as the optimized sample based on organoleptic tests. In the gas chromatographic analysis, both isomers of citral, neral and geranial, were eluted out. It is concluded from the study, that lemongrass has fortified paneer with bioactive properties than control paneer and is a quite promising herb for the development of value added dairy products. | Bioactivity analysis and citral content estimation of value added paneer incorporated with lemongrass extract and lemongrass oil

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